Imported from libpng-1.4.0beta53.tar
diff --git a/ANNOUNCE b/ANNOUNCE index 7d208ad..753e951 100644 --- a/ANNOUNCE +++ b/ANNOUNCE
@@ -1,5 +1,5 @@ -Libpng 1.4.0beta52 - March 28, 2009 +Libpng 1.4.0beta53 - April 1, 2009 This is not intended to be a public release. It will be replaced within a few weeks by a public version or by another test version. @@ -9,27 +9,27 @@ Source files with LF line endings (for Unix/Linux) and with a "configure" script - 1.4.0beta52.tar.gz - 1.4.0beta52.tar.bz2 + 1.4.0beta53.tar.gz + 1.4.0beta53.tar.bz2 Source files with LF line endings (for Unix/Linux) without the "configure" script - 1.4.0beta52-no-config.tar.gz - 1.4.0beta52-no-config.tar.bz2 + 1.4.0beta53-no-config.tar.gz + 1.4.0beta53-no-config.tar.bz2 Source files with CRLF line endings (for Windows), without the "configure" script - lp140b52.zip - lp140b52.tar.bz2 + lp140b53.zip + lp140b53.tar.bz2 Other information: - 1.4.0beta52-README.txt - 1.4.0beta52-KNOWNBUGS.txt - 1.4.0beta52-LICENSE.txt - 1.4.0beta52-Y2K-compliance.txt + 1.4.0beta53-README.txt + 1.4.0beta53-KNOWNBUGS.txt + 1.4.0beta53-LICENSE.txt + 1.4.0beta53-Y2K-compliance.txt Changes since the last public release (1.2.10): @@ -406,9 +406,16 @@ version 1.4.0beta51 [March 21, 2009] Removed new png_fileno() macro from pngconf.h . -version 1.4.0beta52 [March 28, 2009] +version 1.4.0beta52 [March 27, 2009] Relocated png_do_chop() ahead of building gamma tables in pngrtran.c This avoids building 16-bit gamma tables unnecessarily. + Removed fflush() from pngtest.c. + Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h + Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt + +version 1.4.0beta53 [April 1, 2009] + Removed some remaining MMX macros from pngpriv.h + Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles) version 1.4.0betaN [future] Build shared libraries with -lz and sometimes -lm.
diff --git a/CHANGES b/CHANGES index 94cfb02..b61fad0 100644 --- a/CHANGES +++ b/CHANGES
@@ -2082,9 +2082,16 @@ version 1.4.0beta51 [March 21, 2009] Removed new png_fileno() macro from pngconf.h . -version 1.4.0beta52 [March 28, 2009] +version 1.4.0beta52 [March 27, 2009] Relocated png_do_chop() ahead of building gamma tables in pngrtran.c This avoids building 16-bit gamma tables unnecessarily. + Removed fflush() from pngtest.c. + Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h + Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt + +version 1.4.0beta53 [April 1, 2009] + Removed some remaining MMX macros from pngpriv.h + Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles) version 1.4.0betaN [future] Build shared libraries with -lz and sometimes -lm.
diff --git a/INSTALL b/INSTALL index 26cf2aa..8d57642 100644 --- a/INSTALL +++ b/INSTALL
@@ -1,5 +1,5 @@ -Installing libpng version 1.4.0beta52 - March 28, 2009 +Installing libpng version 1.4.0beta53 - April 1, 2009 On Unix/Linux and similar systems, you can simply type @@ -44,7 +44,7 @@ correspond to the version of zlib that's installed. You can rename the directories that you downloaded (they -might be called "libpng-1.4.0beta52" or "lpng109" and "zlib-1.2.1" +might be called "libpng-1.4.0beta53" or "lpng109" and "zlib-1.2.1" or "zlib121") so that you have directories called "zlib" and "libpng". Your directory structure should look like this: @@ -95,14 +95,14 @@ CMakeLists.txt => "cmake" script makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.elf => Linux/ELF makefile symbol versioning, - gcc, creates libpng14.so.14.1.4.0beta52) + gcc, creates libpng14.so.14.1.4.0beta53) makefile.linux => Linux/ELF makefile - (gcc, creates libpng14.so.14.1.4.0beta52) + (gcc, creates libpng14.so.14.1.4.0beta53) makefile.gcmmx => Linux/ELF makefile - (gcc, creates libpng14.so.14.1.4.0beta52, + (gcc, creates libpng14.so.14.1.4.0beta53, uses assembler code tuned for Intel MMX platform) makefile.nommx => Linux/ELF makefile - (gcc, creates libpng14.so.14.1.4.0beta52 + (gcc, creates libpng14.so.14.1.4.0beta53 does not use Intel MMX assembler code) makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.knr => Archaic UNIX Makefile that converts files with @@ -125,12 +125,12 @@ makefile.openbsd => OpenBSD makefile makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) makefile.sggcc => Silicon Graphics (gcc, - creates libpng14.so.14.1.4.0beta52) + creates libpng14.so.14.1.4.0beta53) makefile.sunos => Sun makefile makefile.solaris => Solaris 2.X makefile (gcc, - creates libpng14.so.14.1.4.0beta52) + creates libpng14.so.14.1.4.0beta53) makefile.so9 => Solaris 9 makefile (gcc, - creates libpng14.so.14.1.4.0beta52) + creates libpng14.so.14.1.4.0beta53) makefile.32sunu => Sun Ultra 32-bit makefile makefile.64sunu => Sun Ultra 64-bit makefile makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
diff --git a/KNOWNBUG b/KNOWNBUG index 668b185..ed7d24f 100644 --- a/KNOWNBUG +++ b/KNOWNBUG
@@ -1,5 +1,5 @@ -Known bugs in libpng version 1.4.0beta52 +Known bugs in libpng version 1.4.0beta53 1. April 22, 2001: pnggccrd.c has been reported to crash on NetBSD when reading interlaced PNG files, when assembler code is enabled but running
diff --git a/LICENSE b/LICENSE index e2a4b1a..ed88ecc 100644 --- a/LICENSE +++ b/LICENSE
@@ -8,7 +8,7 @@ If you modify libpng you may insert additional notices immediately following this sentence. -libpng versions 1.2.6, August 15, 2004, through 1.4.0beta52, March 28, 2009, are +libpng versions 1.2.6, August 15, 2004, through 1.4.0beta53, April 1, 2009, are Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are distributed according to the same disclaimer and license as libpng-1.2.5 with the following individual added to the list of Contributing Authors @@ -106,4 +106,4 @@ Glenn Randers-Pehrson glennrp at users.sourceforge.net -March 28, 2009 +April 1, 2009
diff --git a/Makefile.am b/Makefile.am index 8785ca4..68fed5b 100644 --- a/Makefile.am +++ b/Makefile.am
@@ -86,7 +86,7 @@ ${srcdir}/contrib/pngsuite/* \ ${srcdir}/contrib/visupng/* \ $(TESTS) \ - example.c libpng-1.4.0beta52.txt pngvcrd.c + example.c libpng-1.4.0beta53.txt pngvcrd.c CLEANFILES= pngout.png libpng14.pc libpng14-config libpng.vers \ libpng.sym
diff --git a/Makefile.in b/Makefile.in index ab7ce87..353bc6f 100644 --- a/Makefile.in +++ b/Makefile.in
@@ -331,7 +331,7 @@ ${srcdir}/contrib/pngsuite/* \ ${srcdir}/contrib/visupng/* \ $(TESTS) \ - example.c libpng-1.4.0beta52.txt pngvcrd.c + example.c libpng-1.4.0beta53.txt pngvcrd.c CLEANFILES = pngout.png libpng14.pc libpng14-config libpng.vers \ libpng.sym
diff --git a/README b/README index 47b61f0..034ff5d 100644 --- a/README +++ b/README
@@ -1,4 +1,4 @@ -README for libpng version 1.4.0beta52 - March 28, 2009 (shared library 14.0) +README for libpng version 1.4.0beta53 - April 1, 2009 (shared library 14.0) See the note about version numbers near the top of png.h See INSTALL for instructions on how to install libpng. @@ -184,11 +184,11 @@ descrip.mms => VMS makefile for MMS or MMK makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.elf => Linux/ELF makefile symbol versioning, - gcc, creates libpng14.so.14.1.4.0beta52) + gcc, creates libpng14.so.14.1.4.0beta53) makefile.linux => Linux/ELF makefile - (gcc, creates libpng14.so.14.1.4.0beta52) + (gcc, creates libpng14.so.14.1.4.0beta53) makefile.gcmmx => Linux/ELF makefile - (gcc, creates libpng14.so.14.1.4.0beta52, + (gcc, creates libpng14.so.14.1.4.0beta53, uses assembler code tuned for Intel MMX platform) makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.knr => Archaic UNIX Makefile that converts files with @@ -210,12 +210,12 @@ makefile.openbsd => OpenBSD makefile makefile.sgi => Silicon Graphics IRIX (cc, creates static lib) makefile.sggcc => Silicon Graphics - (gcc, creates libpng14.so.14.1.4.0beta52) + (gcc, creates libpng14.so.14.1.4.0beta53) makefile.sunos => Sun makefile makefile.solaris => Solaris 2.X makefile - (gcc, creates libpng14.so.14.1.4.0beta52) + (gcc, creates libpng14.so.14.1.4.0beta53) makefile.so9 => Solaris 9 makefile - (gcc, creates libpng14.so.14.1.4.0beta52) + (gcc, creates libpng14.so.14.1.4.0beta53) makefile.32sunu => Sun Ultra 32-bit makefile makefile.64sunu => Sun Ultra 64-bit makefile makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
diff --git a/configure b/configure index 5b6eb82..d4965ba 100755 --- a/configure +++ b/configure Binary files differ
diff --git a/configure.ac b/configure.ac index 0745579..52c992f 100644 --- a/configure.ac +++ b/configure.ac
@@ -18,12 +18,12 @@ dnl Version number stuff here: -AC_INIT([libpng], [1.4.0beta52], [png-mng-implement@lists.sourceforge.net]) +AC_INIT([libpng], [1.4.0beta53], [png-mng-implement@lists.sourceforge.net]) AM_INIT_AUTOMAKE dnl stop configure from automagically running automake AM_MAINTAINER_MODE -PNGLIB_VERSION=1.4.0beta52 +PNGLIB_VERSION=1.4.0beta53 PNGLIB_MAJOR=1 PNGLIB_MINOR=4 PNGLIB_RELEASE=0
diff --git a/example.c b/example.c index f55e4f2..0a58a89 100644 --- a/example.c +++ b/example.c
@@ -2,7 +2,7 @@ #if 0 /* in case someone actually tries to compile this */ /* example.c - an example of using libpng - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * This file has been placed in the public domain by the authors. * Maintained 1998-2009 Glenn Randers-Pehrson * Maintained 1996, 1997 Andreas Dilger)
diff --git a/libpng-1.4.0beta52.txt b/libpng-1.4.0beta53.txt similarity index 99% rename from libpng-1.4.0beta52.txt rename to libpng-1.4.0beta53.txt index 3fb4150..87b3c0c 100644 --- a/libpng-1.4.0beta52.txt +++ b/libpng-1.4.0beta53.txt
@@ -1,6 +1,6 @@ libpng.txt - A description on how to use and modify libpng - libpng version 1.4.0beta52 - March 28, 2009 + libpng version 1.4.0beta53 - April 1, 2009 Updated and distributed by Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Copyright (c) 1998-2009 Glenn Randers-Pehrson @@ -9,7 +9,7 @@ Based on: - libpng versions 0.97, January 1998, through 1.4.0beta52 - March 28, 2009 + libpng versions 0.97, January 1998, through 1.4.0beta53 - April 1, 2009 Updated and distributed by Glenn Randers-Pehrson Copyright (c) 1998-2008 Glenn Randers-Pehrson @@ -883,7 +883,7 @@ As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was added. It expands the sample depth without changing tRNS to alpha. -As of libpng version 1.4.0beta52, not all possible expansions are supported. +As of libpng version 1.4.0beta53, not all possible expansions are supported. In the following table, the 01 means grayscale with depth<8, 31 means indexed with depth<8, other numerals represent the color type, "T" means @@ -3045,13 +3045,13 @@ X. Y2K Compliance in libpng -March 28, 2009 +April 1, 2009 Since the PNG Development group is an ad-hoc body, we can't make an official declaration. This is your unofficial assurance that libpng from version 0.71 and -upward through 1.4.0beta52 are Y2K compliant. It is my belief that earlier +upward through 1.4.0beta53 are Y2K compliant. It is my belief that earlier versions were also Y2K compliant. Libpng only has three year fields. One is a 2-byte unsigned integer that
diff --git a/libpng.3 b/libpng.3 index d1419b1..b9f7590 100644 --- a/libpng.3 +++ b/libpng.3
@@ -1,6 +1,6 @@ -.TH LIBPNG 3 "March 28, 2009" +.TH LIBPNG 3 "April 1, 2009" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta52 +libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta53 .SH SYNOPSIS \fI\fB @@ -809,7 +809,7 @@ .SH LIBPNG.TXT libpng.txt - A description on how to use and modify libpng - libpng version 1.4.0beta52 - March 28, 2009 + libpng version 1.4.0beta53 - April 1, 2009 Updated and distributed by Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Copyright (c) 1998-2009 Glenn Randers-Pehrson @@ -818,7 +818,7 @@ Based on: - libpng versions 0.97, January 1998, through 1.4.0beta52 - March 28, 2009 + libpng versions 0.97, January 1998, through 1.4.0beta53 - April 1, 2009 Updated and distributed by Glenn Randers-Pehrson Copyright (c) 1998-2008 Glenn Randers-Pehrson @@ -1692,7 +1692,7 @@ As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was added. It expands the sample depth without changing tRNS to alpha. -As of libpng version 1.4.0beta52, not all possible expansions are supported. +As of libpng version 1.4.0beta53, not all possible expansions are supported. In the following table, the 01 means grayscale with depth<8, 31 means indexed with depth<8, other numerals represent the color type, "T" means @@ -3854,13 +3854,13 @@ .SH X. Y2K Compliance in libpng -March 28, 2009 +April 1, 2009 Since the PNG Development group is an ad-hoc body, we can't make an official declaration. This is your unofficial assurance that libpng from version 0.71 and -upward through 1.4.0beta52 are Y2K compliant. It is my belief that earlier +upward through 1.4.0beta53 are Y2K compliant. It is my belief that earlier versions were also Y2K compliant. Libpng only has three year fields. One is a 2-byte unsigned integer that @@ -4028,7 +4028,7 @@ 1.4.0beta9-14 14 10400 14.so.0.0[.0] 1.2.13 13 10213 12.so.0.13[.0] 1.4.0beta15-36 14 10400 14.so.0.0[.0] - 1.4.0beta37-52 14 10400 14.so.14.0[.0] + 1.4.0beta37-53 14 10400 14.so.14.0[.0] Henceforth the source version will match the shared-library minor and patch numbers; the shared-library major version number will be @@ -4084,7 +4084,7 @@ Thanks to Frank J. T. Wojcik for helping with the documentation. -Libpng version 1.4.0beta52 - March 28, 2009: +Libpng version 1.4.0beta53 - April 1, 2009: Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). @@ -4105,7 +4105,7 @@ If you modify libpng you may insert additional notices immediately following this sentence. -libpng versions 1.2.6, August 15, 2004, through 1.4.0beta52, March 28, 2009, are +libpng versions 1.2.6, August 15, 2004, through 1.4.0beta53, April 1, 2009, are Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are distributed according to the same disclaimer and license as libpng-1.2.5 with the following individual added to the list of Contributing Authors @@ -4204,7 +4204,7 @@ Glenn Randers-Pehrson glennrp at users.sourceforge.net -March 28, 2009 +April 1, 2009 .\" end of man page
diff --git a/libpngpf.3 b/libpngpf.3 index 99b1f08..a6cbfaf 100644 --- a/libpngpf.3 +++ b/libpngpf.3
@@ -1,6 +1,6 @@ -.TH LIBPNGPF 3 "March 28, 2009" +.TH LIBPNGPF 3 "April 1, 2009" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta52 +libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta53 (private functions) .SH SYNOPSIS \fB#include <png.h>\fP
diff --git a/png.5 b/png.5 index e21f918..e865848 100644 --- a/png.5 +++ b/png.5
@@ -1,4 +1,4 @@ -.TH PNG 5 "March 28, 2009" +.TH PNG 5 "April 1, 2009" .SH NAME png \- Portable Network Graphics (PNG) format .SH DESCRIPTION
diff --git a/png.c b/png.c index c538744..c3b6076 100644 --- a/png.c +++ b/png.c
@@ -1,7 +1,7 @@ /* png.c - location for general purpose libpng functions * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -13,7 +13,7 @@ #include "pngpriv.h" /* Generate a compiler error if there is an old png.h in the search path. */ -typedef version_1_4_0beta52 Your_png_h_is_not_version_1_4_0beta52; +typedef version_1_4_0beta53 Your_png_h_is_not_version_1_4_0beta53; /* Version information for C files. This had better match the version * string defined in png.h. */ @@ -641,13 +641,13 @@ #else #ifdef __STDC__ return ((png_charp) PNG_STRING_NEWLINE \ - "libpng version x 1.4.0beta52 - March 28, 2009" PNG_STRING_NEWLINE \ + "libpng version x 1.4.0beta53 - April 1, 2009" PNG_STRING_NEWLINE \ "Copyright (c) 1998-2009 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ PNG_STRING_NEWLINE); #else - return ((png_charp) "libpng version 1.4.0beta52 - March 28, 2009\ + return ((png_charp) "libpng version 1.4.0beta53 - April 1, 2009\ Copyright (c) 1998-2009 Glenn Randers-Pehrson\ Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
diff --git a/png.h b/png.h index dc1f40a..a7f7165 100644 --- a/png.h +++ b/png.h
@@ -1,7 +1,7 @@ /* png.h - header file for PNG reference library * - * libpng version 1.4.0beta52 - March 28, 2009 + * libpng version 1.4.0beta53 - April 1, 2009 * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -9,7 +9,7 @@ * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.4.0beta52 - March 28, 2009: Glenn + * libpng versions 0.97, January 1998, through 1.4.0beta53 - April 1, 2009: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -127,7 +127,7 @@ * 1.4.0beta9-14 14 10400 14.so.0.0[.0] * 1.2.13 13 10213 12.so.0.10[.0] * 1.4.0beta15-36 14 10400 14.so.0.0[.0] - * 1.4.0beta37-52 14 10400 14.so.14.0[.0] + * 1.4.0beta37-53 14 10400 14.so.14.0[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -157,7 +157,7 @@ * If you modify libpng you may insert additional notices immediately following * this sentence. * - * libpng versions 1.2.6, August 15, 2004, through 1.4.0beta52, March 28, 2009, are + * libpng versions 1.2.6, August 15, 2004, through 1.4.0beta53, April 1, 2009, are * Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are * distributed according to the same disclaimer and license as libpng-1.2.5 * with the following individual added to the list of Contributing Authors: @@ -275,7 +275,7 @@ * an official declaration. * * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.4.0beta52 are Y2K compliant. It is my belief that earlier + * upward through 1.4.0beta53 are Y2K compliant. It is my belief that earlier * versions were also Y2K compliant. * * Libpng only has three year fields. One is a 2-byte unsigned integer @@ -331,9 +331,9 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.4.0beta52" +#define PNG_LIBPNG_VER_STRING "1.4.0beta53" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.4.0beta52 - March 28, 2009\n" + " libpng version 1.4.0beta53 - April 1, 2009\n" #define PNG_LIBPNG_VER_SONUM 14 #define PNG_LIBPNG_VER_DLLNUM 14 @@ -345,7 +345,7 @@ /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ -#define PNG_LIBPNG_VER_BUILD 52 +#define PNG_LIBPNG_VER_BUILD 53 /* Release Status */ #define PNG_LIBPNG_BUILD_ALPHA 1 @@ -1356,7 +1356,7 @@ /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ -typedef png_structp version_1_4_0beta52; +typedef png_structp version_1_4_0beta53; typedef png_struct FAR * FAR * png_structpp;
diff --git a/pngconf.h b/pngconf.h index f3a1514..8317fba 100644 --- a/pngconf.h +++ b/pngconf.h
@@ -1,7 +1,7 @@ /* pngconf.h - machine configurable file for libpng * - * libpng version 1.4.0beta52 - March 28, 2009 + * libpng version 1.4.0beta53 - April 1, 2009 * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngerror.c b/pngerror.c index 0820cd7..4116f43 100644 --- a/pngerror.c +++ b/pngerror.c
@@ -1,7 +1,7 @@ /* pngerror.c - stub functions for i/o and memory allocation * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngget.c b/pngget.c index 294c75f..1a1ddce 100644 --- a/pngget.c +++ b/pngget.c
@@ -1,7 +1,7 @@ /* pngget.c - retrieval of values from info struct * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngmem.c b/pngmem.c index 75751b3..2021329 100644 --- a/pngmem.c +++ b/pngmem.c
@@ -1,7 +1,7 @@ /* pngmem.c - stub functions for memory allocation * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpread.c b/pngpread.c index 7b187cd..c8147c0 100644 --- a/pngpread.c +++ b/pngpread.c
@@ -1,7 +1,7 @@ /* pngpread.c - read a png file in push mode * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpriv.h b/pngpriv.h index 5b9502e..5b81811 100644 --- a/pngpriv.h +++ b/pngpriv.h
@@ -1,7 +1,7 @@ /* pngpriv.h - private declarations for use inside libpng * - * libpng version 1.4.0beta52 - March 28, 2009 + * libpng version 1.4.0beta53 - April 1, 2009 * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -846,11 +846,6 @@ png_bytep row)); #endif -#if defined(PNG_MMX_CODE_SUPPORTED) -/* PRIVATE */ -PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr)); -#endif - /* Added at libpng version 1.4.0 */ #if defined(PNG_cHRM_SUPPORTED) PNG_EXTERN int png_check_cHRM_fixed PNGARG((png_structp png_ptr, @@ -862,45 +857,6 @@ /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ -#ifdef PNG_READ_SUPPORTED -/* Prior to libpng-1.0.9, this block was in pngasmrd.h */ - -/* These are the default thresholds before the MMX code kicks in; if either - * rowbytes or bitdepth is below the threshold, plain C code is used. These - * can be overridden at runtime via the png_set_mmx_thresholds() call in - * libpng 1.2.0 and later. The values below were chosen by Intel. - */ - -#ifndef PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT -# define PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT 128 /* >= */ -#endif -#ifndef PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT -# define PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT 9 /* >= */ -#endif - -/* Set this in the makefile for VC++ on Pentium, not here. */ -/* Platform must be Pentium. Makefile must assemble and load pngvcrd.c . - * MMX will be detected at run time and used if present. - */ -#ifdef PNG_USE_PNGVCRD -# define PNG_HAVE_MMX_COMBINE_ROW -# define PNG_HAVE_MMX_READ_INTERLACE -# define PNG_HAVE_MMX_READ_FILTER_ROW -#endif - -/* Set this in the makefile for gcc/as on Pentium, not here. */ -/* Platform must be Pentium. Makefile must assemble and load pnggccrd.c . - * MMX will be detected at run time and used if present. - */ -#ifdef PNG_USE_PNGGCCRD -# define PNG_HAVE_MMX_COMBINE_ROW -# define PNG_HAVE_MMX_READ_INTERLACE -# define PNG_HAVE_MMX_READ_FILTER_ROW -#endif -/* - see pnggccrd.c for info about what is currently enabled */ - -#endif /* PNG_READ_SUPPORTED */ - #ifdef __cplusplus } #endif
diff --git a/pngread.c b/pngread.c index af0e0cd..ca6c445 100644 --- a/pngread.c +++ b/pngread.c
@@ -1,7 +1,7 @@ /* pngread.c - read a PNG file * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrio.c b/pngrio.c index 434b27b..e3d7e88 100644 --- a/pngrio.c +++ b/pngrio.c
@@ -1,7 +1,7 @@ /* pngrio.c - functions for data input * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrtran.c b/pngrtran.c index 51c4872..5ac73ca 100644 --- a/pngrtran.c +++ b/pngrtran.c
@@ -1,7 +1,7 @@ /* pngrtran.c - transforms the data in a row for PNG readers * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrutil.c b/pngrutil.c index 61a069a..6d4c17f 100644 --- a/pngrutil.c +++ b/pngrutil.c
@@ -1,7 +1,7 @@ /* pngrutil.c - utilities to read a PNG file * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngset.c b/pngset.c index 699c16f..e786fb5 100644 --- a/pngset.c +++ b/pngset.c
@@ -1,7 +1,7 @@ /* pngset.c - storage of image information into info struct * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngtest.c b/pngtest.c index dd75817..8b3f49a 100644 --- a/pngtest.c +++ b/pngtest.c
@@ -1,7 +1,7 @@ /* pngtest.c - a simple test program to test libpng * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -1611,4 +1611,4 @@ } /* Generate a compiler error if there is an old png.h in the search path. */ -typedef version_1_4_0beta52 your_png_h_is_not_version_1_4_0beta52; +typedef version_1_4_0beta53 your_png_h_is_not_version_1_4_0beta53;
diff --git a/pngtrans.c b/pngtrans.c index 2bba86c..2c59b47 100644 --- a/pngtrans.c +++ b/pngtrans.c
@@ -1,7 +1,7 @@ /* pngtrans.c - transforms the data in a row (used by both readers and writers) * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwio.c b/pngwio.c index 273df02..9c39b13 100644 --- a/pngwio.c +++ b/pngwio.c
@@ -1,7 +1,7 @@ /* pngwio.c - functions for data output * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwrite.c b/pngwrite.c index cf3ea86..438a397 100644 --- a/pngwrite.c +++ b/pngwrite.c
@@ -1,7 +1,7 @@ /* pngwrite.c - general routines to write a PNG file * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwtran.c b/pngwtran.c index 7740123..055eea4 100644 --- a/pngwtran.c +++ b/pngwtran.c
@@ -1,7 +1,7 @@ /* pngwtran.c - transforms the data in a row for PNG writers * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwutil.c b/pngwutil.c index f5e2253..545ad34 100644 --- a/pngwutil.c +++ b/pngwutil.c
@@ -1,7 +1,7 @@ /* pngwutil.c - utilities to write a PNG file * - * Last changed in libpng 1.4.0 [March 28, 2009] + * Last changed in libpng 1.4.0 [April 1, 2009] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -811,6 +811,7 @@ { png_warning(png_ptr, "Embedded profile length too large in iCCP chunk"); + png_free(png_ptr, new_name); return; }
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt index 277f8a5..6472ea1 100644 --- a/scripts/CMakeLists.txt +++ b/scripts/CMakeLists.txt
@@ -178,7 +178,7 @@ # SET UP LINKS set_target_properties(${PNG_LIB_NAME} PROPERTIES -# VERSION 0.${PNGLIB_RELEASE}.1.4.0beta52 +# VERSION 0.${PNGLIB_RELEASE}.1.4.0beta53 VERSION 0.${PNGLIB_RELEASE}.0 SOVERSION 0 CLEAN_DIRECT_OUTPUT 1)
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in index d60d28e..ba93c93 100755 --- a/scripts/libpng-config-head.in +++ b/scripts/libpng-config-head.in
@@ -8,7 +8,7 @@ # Modeled after libxml-config. -version=1.4.0beta52 +version=1.4.0beta53 prefix="" libdir="" libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in index b8632db..195e2c7 100644 --- a/scripts/libpng.pc.in +++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@ Name: libpng Description: Loads and saves PNG files -Version: 1.4.0beta52 +Version: 1.4.0beta53 Libs: -L${libdir} -lpng14 Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu index 8b9c88c..acf5546 100644 --- a/scripts/makefile.32sunu +++ b/scripts/makefile.32sunu
@@ -8,7 +8,7 @@ # Library name: LIBNAME=libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu index c030ad1..516b505 100644 --- a/scripts/makefile.64sunu +++ b/scripts/makefile.64sunu
@@ -8,7 +8,7 @@ # Library name: LIBNAME=libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.aix b/scripts/makefile.aix index 05a4b18..559bc13 100644 --- a/scripts/makefile.aix +++ b/scripts/makefile.aix
@@ -20,7 +20,7 @@ LIBNAME=libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos index b694aa2..94af476 100644 --- a/scripts/makefile.beos +++ b/scripts/makefile.beos
@@ -8,7 +8,7 @@ # Library name: LIBNAME=libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin index b62dcd3..7539397 100644 --- a/scripts/makefile.cygwin +++ b/scripts/makefile.cygwin
@@ -65,7 +65,7 @@ LIBNAME = libpng14 PNGMAJ = 14 CYGDLL = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin index 2328057..89470ba 100644 --- a/scripts/makefile.darwin +++ b/scripts/makefile.darwin
@@ -19,7 +19,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 12 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.dec b/scripts/makefile.dec index 48d3772..ab00bf6 100644 --- a/scripts/makefile.dec +++ b/scripts/makefile.dec
@@ -5,7 +5,7 @@ # Library name: PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng14
diff --git a/scripts/makefile.elf b/scripts/makefile.elf index 4059e1b..7881df6 100644 --- a/scripts/makefile.elf +++ b/scripts/makefile.elf
@@ -12,7 +12,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx index 2e5edee..bbd9c8a 100644 --- a/scripts/makefile.gcmmx +++ b/scripts/makefile.gcmmx
@@ -16,7 +16,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64 index a3f3648..8bca07c 100644 --- a/scripts/makefile.hp64 +++ b/scripts/makefile.hp64
@@ -18,7 +18,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc index 8da44d2..bfa2206 100644 --- a/scripts/makefile.hpgcc +++ b/scripts/makefile.hpgcc
@@ -8,7 +8,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux index 3a66c77..66f209a 100644 --- a/scripts/makefile.hpux +++ b/scripts/makefile.hpux
@@ -18,7 +18,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.linux b/scripts/makefile.linux index 5f5c7f7..1fed808 100644 --- a/scripts/makefile.linux +++ b/scripts/makefile.linux
@@ -6,7 +6,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.mingw b/scripts/makefile.mingw index d66276f..88d20ad 100644 --- a/scripts/makefile.mingw +++ b/scripts/makefile.mingw
@@ -81,7 +81,7 @@ LIBNAME = libpng14 PNGMAJ = 14 MINGDLL = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) SHAREDLIB=libpng$(MINGDLL).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd index a50badb..50111c6 100644 --- a/scripts/makefile.ne12bsd +++ b/scripts/makefile.ne12bsd
@@ -14,7 +14,7 @@ LIB= png14 SHLIB_MAJOR= 0 -SHLIB_MINOR= 1.4.0beta52 +SHLIB_MINOR= 1.4.0beta53 SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd index 2f15f5d..df5ad7a 100644 --- a/scripts/makefile.netbsd +++ b/scripts/makefile.netbsd
@@ -13,7 +13,7 @@ LIB= png SHLIB_MAJOR= 3 -SHLIB_MINOR= 1.4.0beta52 +SHLIB_MINOR= 1.4.0beta53 SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.nommx b/scripts/makefile.nommx index 0decaf0..409a8a5 100644 --- a/scripts/makefile.nommx +++ b/scripts/makefile.nommx
@@ -16,7 +16,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd index 6d0f490..9741554 100644 --- a/scripts/makefile.openbsd +++ b/scripts/makefile.openbsd
@@ -8,7 +8,7 @@ MANDIR= ${PREFIX}/man/cat SHLIB_MAJOR= 0 -SHLIB_MINOR= 1.4.0beta52 +SHLIB_MINOR= 1.4.0beta53 LIB= png SRCS= png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco index 45653fb..f2b0e3c 100644 --- a/scripts/makefile.sco +++ b/scripts/makefile.sco
@@ -9,7 +9,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc index f0129ff..3b3b72c 100644 --- a/scripts/makefile.sggcc +++ b/scripts/makefile.sggcc
@@ -6,7 +6,7 @@ # Library name: LIBNAME=libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi index 1754073..e937a8b 100644 --- a/scripts/makefile.sgi +++ b/scripts/makefile.sgi
@@ -6,7 +6,7 @@ # Library name: LIBNAME=libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9 index 6ca4290..4479adc 100644 --- a/scripts/makefile.so9 +++ b/scripts/makefile.so9
@@ -8,7 +8,7 @@ # Library name: PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng14
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris index 8e1d01b..00c1a8d 100644 --- a/scripts/makefile.solaris +++ b/scripts/makefile.solaris
@@ -8,7 +8,7 @@ # Library name: LIBNAME = libpng14 PNGMAJ = 14 -PNGMIN = 1.4.0beta52 +PNGMIN = 1.4.0beta53 PNGVER = $(PNGMAJ).$(PNGMIN) # Shared library names:
diff --git a/scripts/pngos2.def b/scripts/pngos2.def index bf48236..7f2faeb 100644 --- a/scripts/pngos2.def +++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@ ; PNG.LIB module definition file for OS/2 ;---------------------------------------- -; Version 1.4.0beta52 +; Version 1.4.0beta53 LIBRARY PNG DESCRIPTION "PNG image compression library for OS/2"
diff --git a/scripts/pngwin.def b/scripts/pngwin.def index ddd430a..c8bd112 100644 --- a/scripts/pngwin.def +++ b/scripts/pngwin.def
@@ -5,7 +5,7 @@ LIBRARY EXPORTS -;Version 1.4.0beta52 +;Version 1.4.0beta53 png_build_grayscale_palette png_chunk_error png_chunk_warning