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Imported from libpng-1.0.9beta7.tar

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Glenn Randers-Pehrson 2000-12-28 07:50:05 -06:00
parent f05f8033b8
commit 76e5fd642e
50 changed files with 191 additions and 152 deletions
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6
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.0.9rc1 - December 23, 2000 Libpng 1.0.9beta7 - December 28, 2000
This is a public release of libpng, intended for use in production codes. This is a public release of libpng, intended for use in production codes.
@ -41,6 +41,10 @@ Changes since the last public release (1.0.8):
Revised libpng.3/libpng.txt. Changed "filter type" to "filter method". Revised libpng.3/libpng.txt. Changed "filter type" to "filter method".
Fixed error handling of unknown compression type in png_decompress_chunk(). Fixed error handling of unknown compression type in png_decompress_chunk().
In pngconf.h, define __cdecl when _MSC_VER is defined. In pngconf.h, define __cdecl when _MSC_VER is defined.
Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
Revised memory management in png_set_hIST and png_handle_hIST in a backward
compatible manner. PLTE and tRNS were revised similarly.
Revised the iCCP chunk reader to ignore trailing garbage.
Send comments/corrections/commendations to Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

5
CHANGES
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@ -866,6 +866,11 @@ version 1.0.9rc1 [December 23, 2000]
Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
Fixed error handling of unknown compression type in png_decompress_chunk(). Fixed error handling of unknown compression type in png_decompress_chunk().
In pngconf.h, define __cdecl when _MSC_VER is defined. In pngconf.h, define __cdecl when _MSC_VER is defined.
version 1.0.9beta7 [December 28, 2000]
Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
Revised memory management in png_set_hIST and png_handle_hIST in a backward
compatible manner. PLTE and tRNS were revised similarly.
Revised the iCCP chunk reader to ignore trailing garbage.
Send comments/corrections/commendations to Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

12
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.9rc1 - December 23, 2000 Installing libpng version 1.0.9beta7 - December 28, 2000
Before installing libpng, you must first install zlib. zlib Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be can usually be found wherever you got libpng. zlib can be
@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
version of zlib that's installed. version of zlib that's installed.
You can rename the directories that you downloaded (they You can rename the directories that you downloaded (they
might be called "libpng-1.0.9rc1" or "lpng109" and "zlib-1.1.3" might be called "libpng-1.0.9beta7" or "lpng109" and "zlib-1.1.3"
or "zlib113") so that you have directories called "zlib" and "libpng". or "zlib113") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this: Your directory structure should look like this:
@ -59,8 +59,8 @@ The files that are presently available in the scripts directory
include include
makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9rc1) makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9beta7)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9rc1, makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9beta7,
uses assembler code tuned for Intel MMX platform) uses assembler code tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with makefile.knr => Archaic UNIX Makefile that converts files with
@ -75,9 +75,9 @@ include
libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later
makefile.macosx => MACOS X Makefile makefile.macosx => MACOS X Makefile
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.9rc1) makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.9beta7)
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.9rc1) makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.9beta7)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile makefile.acorn => Acorn makefile

2
KNOWNBUG
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@ -1,4 +1,4 @@
Known bugs in libpng-1.0.9 Known bugs in libpng-1.0.9
None as of December 23, 2000. None as of December 28, 2000.

4
LICENSE
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@ -8,7 +8,7 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following If you modify libpng you may insert additional notices immediately following
this sentence. this sentence.
libpng versions 1.0.7, July 1, 2000, through 1.0.9rc1, December 23, 2000, are libpng versions 1.0.7, July 1, 2000, through 1.0.9beta7, December 28, 2000, are
Copyright (c) 2000 Glenn Randers-Pehrson Copyright (c) 2000 Glenn Randers-Pehrson
and are distributed according to the same disclaimer and license as libpng-1.0.6 and are distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors with the following individuals added to the list of Contributing Authors
@ -99,4 +99,4 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
randeg@alum.rpi.edu randeg@alum.rpi.edu
December 23, 2000 December 28, 2000

10
README
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@ -1,4 +1,4 @@
README for libpng 1.0.9rc1 - December 23, 2000 (shared library 2.1) README for libpng 1.0.9beta7 - December 28, 2000 (shared library 2.1)
See the note about version numbers near the top of png.h See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng. See INSTALL for instructions on how to install libpng.
@ -182,9 +182,9 @@ Files in this distribution:
descrip.mms => VMS makefile for MMS or MMK descrip.mms => VMS makefile for MMS or MMK
makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile makefile.linux => Linux/ELF makefile
(gcc, creates libpng.so.2.1.0.9rc1) (gcc, creates libpng.so.2.1.0.9beta7)
makefile.gcmmx => Linux/ELF makefile (gcc, creates makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng.so.2.1.0.9rc1, uses assembler code libpng.so.2.1.0.9beta7, uses assembler code
tuned for Intel MMX platform) tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with makefile.knr => Archaic UNIX Makefile that converts files with
@ -199,10 +199,10 @@ Files in this distribution:
libpng.icc => Project file, IBM VisualAge/C++ 4.0 or later libpng.icc => Project file, IBM VisualAge/C++ 4.0 or later
makefile.macosx => MACOS X Makefile makefile.macosx => MACOS X Makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib) makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.9rc1) makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.9beta7)
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng.so.2.1.0.9rc1) (gcc, creates libpng.so.2.1.0.9beta7)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile makefile.acorn => Acorn makefile

4
Y2KINFO
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@ -1,13 +1,13 @@
Y2K compliance in libpng: Y2K compliance in libpng:
========================= =========================
December 23, 2000 December 28, 2000
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.9rc1 are Y2K compliant. It is my belief that earlier upward through 1.0.9beta7 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer Libpng only has three year fields. One is a 2-byte unsigned integer

2
configure vendored
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@ -1,5 +1,5 @@
echo " echo "
There is no \"configure\" script for Libpng-1.0.9rc1. Instead, please There is no \"configure\" script for Libpng-1.0.9beta7. Instead, please
copy the appropriate makefile for your system from the \"scripts\" copy the appropriate makefile for your system from the \"scripts\"
directory. Read the INSTALL file for more details. directory. Read the INSTALL file for more details.
" "

4
example.c
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@ -603,9 +603,9 @@ void write_png(char *file_name /* , ... other image information ... */)
PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
/* set the palette if there is one. REQUIRED for indexed-color images */ /* set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, 256 * sizeof (png_color)); palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH * sizeof (png_color));
/* ... set palette colors ... */ /* ... set palette colors ... */
png_set_PLTE(png_ptr, info_ptr, palette, 256); png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH);
/* You must not free palette here, because png_set_PLTE only makes a link to /* You must not free palette here, because png_set_PLTE only makes a link to
the palette that you malloced. Wait until you are about to destroy the palette that you malloced. Wait until you are about to destroy
the png structure. */ the png structure. */

16
libpng.3
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@ -1,6 +1,6 @@
.TH LIBPNG 3 "December 23, 2000" .TH LIBPNG 3 "December 28, 2000"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9rc1 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9beta7
.SH SYNOPSIS .SH SYNOPSIS
\fI\fB \fI\fB
@ -747,7 +747,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.9rc1 - December 23, 2000 libpng version 1.0.9beta7 - December 28, 2000
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu> <randeg@alum.rpi.edu>
Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
@ -3419,13 +3419,13 @@ application:
.SH VIII. Y2K Compliance in libpng .SH VIII. Y2K Compliance in libpng
December 23, 2000 December 28, 2000
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.9rc1 are Y2K compliant. It is my belief that earlier upward through 1.0.9beta7 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that Libpng only has three year fields. One is a 2-byte unsigned integer that
@ -3566,7 +3566,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.9rc1 - December 23, 2000: Libpng version 1.0.9beta7 - December 28, 2000:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu). Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
@ -3583,7 +3583,7 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following If you modify libpng you may insert additional notices immediately following
this sentence. this sentence.
libpng versions 1.0.7, July 1, 2000, through 1.0.9rc1, December 23, 2000, are libpng versions 1.0.7, July 1, 2000, through 1.0.9beta7, December 28, 2000, are
Copyright (c) 2000 Glenn Randers-Pehrson, and are Copyright (c) 2000 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6 distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors with the following individuals added to the list of Contributing Authors
@ -3674,7 +3674,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
randeg@alum.rpi.edu randeg@alum.rpi.edu
December 23, 2000 December 28, 2000
.\" end of man page .\" end of man page

6
libpng.txt
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@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.9rc1 - December 23, 2000 libpng version 1.0.9beta7 - December 28, 2000
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu> <randeg@alum.rpi.edu>
Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
@ -2672,13 +2672,13 @@ application:
VIII. Y2K Compliance in libpng VIII. Y2K Compliance in libpng
December 23, 2000 December 28, 2000
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.9rc1 are Y2K compliant. It is my belief that earlier upward through 1.0.9beta7 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that Libpng only has three year fields. One is a 2-byte unsigned integer that

4
libpngpf.3
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@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "December 23, 2000" .TH LIBPNGPF 3 "December 28, 2000"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9rc1 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9beta7
(private functions) (private functions)
.SH SYNOPSIS .SH SYNOPSIS
\fB#include <png.h>\fP \fB#include <png.h>\fP

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "December 23, 2000" .TH PNG 5 "December 28, 2000"
.SH NAME .SH NAME
png \- Portable Network Graphics (PNG) format png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION .SH DESCRIPTION

12
png.c
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@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* libpng version 1.0.9rc1 - December 23, 2000 * libpng version 1.0.9beta7 - December 28, 2000
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -13,14 +13,14 @@
#include "png.h" #include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_9rc1 Your_png_h_is_not_version_1_0_9rc1; typedef version_1_0_9beta7 Your_png_h_is_not_version_1_0_9beta7;
/* Version information for C files. This had better match the version /* Version information for C files. This had better match the version
* string defined in png.h. */ * string defined in png.h. */
#ifdef PNG_USE_GLOBAL_ARRAYS #ifdef PNG_USE_GLOBAL_ARRAYS
/* png_libpng_ver was changed to a function in version 1.0.5c */ /* png_libpng_ver was changed to a function in version 1.0.5c */
const char png_libpng_ver[18] = "1.0.9rc1"; const char png_libpng_ver[18] = "1.0.9beta7";
/* png_sig was changed to a function in version 1.0.5c */ /* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */ /* Place to hold the signature string for a PNG file. */
@ -626,7 +626,7 @@ png_charp PNGAPI
png_get_copyright(png_structp png_ptr) png_get_copyright(png_structp png_ptr)
{ {
if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */ if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */
return ((png_charp) "\n libpng version 1.0.9rc1 - December 23, 2000\n\ return ((png_charp) "\n libpng version 1.0.9beta7 - December 28, 2000\n\
Copyright (c) 1998-2000 Glenn Randers-Pehrson\n\ Copyright (c) 1998-2000 Glenn Randers-Pehrson\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\ Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n"); Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n");
@ -644,8 +644,8 @@ png_get_libpng_ver(png_structp png_ptr)
{ {
/* Version of *.c files used when building libpng */ /* Version of *.c files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */ if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return((png_charp) "1.0.9rc1"); return((png_charp) "1.0.9beta7");
return((png_charp) "1.0.9rc1"); return((png_charp) "1.0.9beta7");
} }
png_charp PNGAPI png_charp PNGAPI

51
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.0.9rc1 - December 23, 2000 * libpng version 1.0.9beta7 - December 28, 2000
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -9,7 +9,7 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * 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 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.0.9rc1 - December 23, 2000: Glenn * libpng versions 0.97, January 1998, through 1.0.9beta7 - December 28, 2000: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -60,6 +60,7 @@
* 1.0.8 10008 2.1.0.8 * 1.0.8 10008 2.1.0.8
* 1.0.9beta1-6 10009 2.1.0.9beta1-6 * 1.0.9beta1-6 10009 2.1.0.9beta1-6
* 1.0.9rc1 10009 2.1.0.9rc1 * 1.0.9rc1 10009 2.1.0.9rc1
* 1.0.9beta7 10009 2.1.0.9beta7
* *
* Henceforth the source version will match the shared-library major * Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be * and minor numbers; the shared-library major version number will be
@ -86,7 +87,7 @@
* If you modify libpng you may insert additional notices immediately following * If you modify libpng you may insert additional notices immediately following
* this sentence. * this sentence.
* *
* libpng versions 1.0.7, July 1, 2000, through 1.0.9rc1, December 23, 2000, are * libpng versions 1.0.7, July 1, 2000, through 1.0.9beta7, December 28, 2000, are
* Copyright (c) 2000 Glenn Randers-Pehrson, and are * Copyright (c) 2000 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.0.6 * distributed according to the same disclaimer and license as libpng-1.0.6
* with the following individuals added to the list of Contributing Authors * with the following individuals added to the list of Contributing Authors
@ -191,13 +192,13 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* December 23, 2000 * December 28, 2000
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
* *
* This is your unofficial assurance that libpng from version 0.71 and * This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.0.9rc1 are Y2K compliant. It is my belief that earlier * upward through 1.0.9beta7 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant. * versions were also Y2K compliant.
* *
* Libpng only has three year fields. One is a 2-byte unsigned integer * Libpng only has three year fields. One is a 2-byte unsigned integer
@ -253,7 +254,7 @@
*/ */
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.9rc1" #define PNG_LIBPNG_VER_STRING "1.0.9beta7"
#define PNG_LIBPNG_VER_SONUM 2 #define PNG_LIBPNG_VER_SONUM 2
@ -264,7 +265,7 @@
/* This should match the numeric part of the final component of /* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */ * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 1 #define PNG_LIBPNG_VER_BUILD 7
#define PNG_LIBPNG_BUILD_ALPHA 1 #define PNG_LIBPNG_BUILD_ALPHA 1
#define PNG_LIBPNG_BUILD_BETA 2 #define PNG_LIBPNG_BUILD_BETA 2
@ -272,7 +273,7 @@
#define PNG_LIBPNG_BUILD_STABLE 4 #define PNG_LIBPNG_BUILD_STABLE 4
#define PNG_LIBPNG_BUILD_TYPEMASK 7 #define PNG_LIBPNG_BUILD_TYPEMASK 7
#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with STABLE only */ #define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with STABLE only */
#define PNG_LIBPNG_BUILD_TYPE 3 #define PNG_LIBPNG_BUILD_TYPE 2
/* Careful here. At one time, Guy wanted to use 082, but that would be octal. /* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros. * We must not include leading zeros.
@ -505,20 +506,20 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp;
* The following members may have allocated storage attached that should be * The following members may have allocated storage attached that should be
* cleaned up before the structure is discarded: palette, trans, text, * cleaned up before the structure is discarded: palette, trans, text,
* pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile, * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile,
* splt_palettes, scal_unit, row_pointers, and unknowns. By default, these are * splt_palettes, scal_unit, row_pointers, and unknowns. By default, these
* automatically freed when the info structure is deallocated, if they were * are automatically freed when the info structure is deallocated, if they were
* allocated internally by libpng. This behavior can be changed by means * allocated internally by libpng. This behavior can be changed by means
* of the png_data_freer() function. * of the png_data_freer() function.
* *
* More allocation details: all the chunk-reading functions that change these * More allocation details: all the chunk-reading functions that
* members go through the corresponding png_set_* functions. A function to * change these members go through the corresponding png_set_*
* clear these members is available: see png_free_data(). Some of the * functions. A function to clear these members is available: see
* png_set_* functions do not depend on being able to point info structure * png_free_data(). The png_set_* functions do not depend on being
* members to any of the storage they are passed (they make their own copies), * able to point info structure members to any of the storage they are
* EXCEPT that the png_set_text functions use the same storage passed to them * passed (they make their own copies), EXCEPT that the png_set_text
* in the text_ptr or itxt_ptr structure argument, and the png_set_tRNS, * functions use the same storage passed to them in the text_ptr or
* png_set_PLTE, png_set_hIST, png_set_iCCP, png_set_rows, png_set_sPLT, * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns
* and png_set_unknowns do not make their own copies. * functions do not make their own copies.
*/ */
typedef struct png_info_struct typedef struct png_info_struct
{ {
@ -826,6 +827,8 @@ typedef png_info FAR * FAR * png_infopp;
/* This is for text chunks */ /* This is for text chunks */
#define PNG_KEYWORD_MAX_LENGTH 79 #define PNG_KEYWORD_MAX_LENGTH 79
/* Maximum number of entries in PLTE/sPLT/tRNS arrays */
#define PNG_MAX_PALETTE_LENGTH 256
/* These determine if an ancillary chunk's data has been successfully read /* These determine if an ancillary chunk's data has been successfully read
* from the PNG header, or if the application has filled in the corresponding * from the PNG header, or if the application has filled in the corresponding
@ -1173,9 +1176,9 @@ struct png_struct_def
}; };
/* This prevents a compiler error in png_get_copyright() in png.c if png.c /* This prevents a compiler error in png_get_copyright() in png.c if png.c
and png.h are both at * version 1.0.9rc1 and png.h are both at * version 1.0.9beta7
*/ */
typedef png_structp version_1_0_9rc1; typedef png_structp version_1_0_9beta7;
typedef png_struct FAR * FAR * png_structpp; typedef png_struct FAR * FAR * png_structpp;
@ -2216,7 +2219,7 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
#endif #endif
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.9rc1 - December 23, 2000 (header)\n" " libpng version 1.0.9beta7 - December 28, 2000 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on /* With these routines we avoid an integer divide, which will be slower on
@ -2444,7 +2447,7 @@ PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ #endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */
/* Initialize png_ptr struct for reading, and allocate any other memory. /* Initialize png_ptr struct for reading, and allocate any other memory.
* (old interface - DEPRECATED). * (old interface - DEPRECATED - use png_create_read_struct instead).
*/ */
extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr));
#define png_read_init(png_ptr) png_read_init_2(png_ptr, \ #define png_read_init(png_ptr) png_read_init_2(png_ptr, \
@ -2454,7 +2457,7 @@ extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
png_info_size)); png_info_size));
/* Initialize png_ptr struct for writing, and allocate any other memory. /* Initialize png_ptr struct for writing, and allocate any other memory.
* (old interface - DEPRECATED). * (old interface - DEPRECATED - use png_create_write_struct instead).
*/ */
extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr));
#define png_write_init(png_ptr) png_write_init_2(png_ptr, \ #define png_write_init(png_ptr) png_write_init_2(png_ptr, \

2
pngasmrd.h
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@ -1,6 +1,6 @@
/* pngasmrd.h - assembler version of utilities to read a PNG file /* pngasmrd.h - assembler version of utilities to read a PNG file
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1999, 2000 Glenn Randers-Pehrson
* *

2
pngconf.h
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@ -1,6 +1,6 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngerror.c
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@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pnggccrd.c
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@ -6,7 +6,7 @@
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm * and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
* for Intel's performance analysis of the MMX vs. non-MMX code. * for Intel's performance analysis of the MMX vs. non-MMX code.
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation * Copyright (c) 1998, Intel Corporation

2
pngget.c
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@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngmem.c
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@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation /* pngmem.c - stub functions for memory allocation
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngpread.c
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@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode /* pngpread.c - read a png file in push mode
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

6
pngread.c
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@ -1,7 +1,7 @@
/* pngread.c - read a PNG file /* pngread.c - read a PNG file
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -712,7 +712,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
* not called png_set_interlace_handling(), the display_row buffer will * not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it. * be ignored, so pass NULL to it.
* *
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.9rc1 * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.9beta7
*/ */
void PNGAPI void PNGAPI
@ -761,7 +761,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for * only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead. * each pass of a interlaced image, use png_read_rows() instead.
* *
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.9rc1 * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.9beta7
*/ */
void PNGAPI void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image) png_read_image(png_structp png_ptr, png_bytepp image)

2
pngrio.c
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@ -1,7 +1,7 @@
/* pngrio.c - functions for data input /* pngrio.c - functions for data input
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngrtran.c
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@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers /* pngrtran.c - transforms the data in a row for PNG readers
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

55
pngrutil.c
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@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -174,7 +174,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
png_charp text = NULL; png_charp text = NULL;
png_size_t text_size; png_size_t text_size;
if (comp_type == PNG_TEXT_COMPRESSION_zTXt) if (comp_type == PNG_COMPRESSION_TYPE_BASE)
{ {
int ret = Z_OK; int ret = Z_OK;
png_ptr->zstream.next_in = (png_bytep)(chunkdata + prefix_size); png_ptr->zstream.next_in = (png_bytep)(chunkdata + prefix_size);
@ -275,7 +275,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
chunkdata = text; chunkdata = text;
*newlength=text_size; *newlength=text_size;
} }
else /* if (comp_type != PNG_TEXT_COMPRESSION_zTXt) */ else /* if (comp_type != PNG_COMPRESSION_TYPE_BASE) */
{ {
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) #if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
char umsg[50]; char umsg[50];
@ -421,7 +421,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
void /* PRIVATE */ void /* PRIVATE */
png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{ {
png_colorp palette; png_color palette[PNG_MAX_PALETTE_LENGTH];
int num, i; int num, i;
#ifndef PNG_NO_POINTER_INDEXING #ifndef PNG_NO_POINTER_INDEXING
png_colorp pal_ptr; png_colorp pal_ptr;
@ -450,7 +450,7 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
} }
#endif #endif
if (length > 768 || length % 3) if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3)
{ {
if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
{ {
@ -466,8 +466,6 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
num = (int)length / 3; num = (int)length / 3;
palette = (png_colorp)png_zalloc(png_ptr, (uInt)num, sizeof (png_color));
#ifndef PNG_NO_POINTER_INDEXING #ifndef PNG_NO_POINTER_INDEXING
for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++) for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++)
{ {
@ -517,7 +515,6 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
else else
{ {
png_chunk_warning(png_ptr, "CRC error"); png_chunk_warning(png_ptr, "CRC error");
png_zfree(png_ptr, palette);
return; return;
} }
} }
@ -528,15 +525,7 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
} }
} }
#endif #endif
png_ptr->palette = palette;
png_ptr->num_palette = (png_uint_16)num;
#ifdef PNG_FREE_ME_SUPPORTED
png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
png_ptr->free_me |= PNG_FREE_PLTE;
#else
png_ptr->flags |= PNG_FLAG_FREE_PLTE;
#endif
png_set_PLTE(png_ptr, info_ptr, palette, num); png_set_PLTE(png_ptr, info_ptr, palette, num);
#if defined(PNG_READ_tRNS_SUPPORTED) #if defined(PNG_READ_tRNS_SUPPORTED)
@ -1089,7 +1078,7 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
} }
png_set_iCCP(png_ptr, info_ptr, chunkdata, compression_type, png_set_iCCP(png_ptr, info_ptr, chunkdata, compression_type,
chunkdata + prefix_length, data_length-prefix_length); chunkdata + prefix_length, profile_length);
png_free(png_ptr, chunkdata); png_free(png_ptr, chunkdata);
} }
#endif /* PNG_READ_iCCP_SUPPORTED */ #endif /* PNG_READ_iCCP_SUPPORTED */
@ -1226,6 +1215,8 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
void /* PRIVATE */ void /* PRIVATE */
png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{ {
png_byte readbuf[PNG_MAX_PALETTE_LENGTH];
png_debug(1, "in png_handle_tRNS\n"); png_debug(1, "in png_handle_tRNS\n");
if (!(png_ptr->mode & PNG_HAVE_IHDR)) if (!(png_ptr->mode & PNG_HAVE_IHDR))
@ -1263,8 +1254,7 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return; return;
} }
png_ptr->trans = (png_bytep)png_malloc(png_ptr, length); png_crc_read(png_ptr, readbuf, (png_size_t)length);
png_crc_read(png_ptr, png_ptr->trans, (png_size_t)length);
png_ptr->num_trans = (png_uint_16)length; png_ptr->num_trans = (png_uint_16)length;
} }
else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
@ -1309,15 +1299,7 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
if (png_crc_finish(png_ptr, 0)) if (png_crc_finish(png_ptr, 0))
return; return;
#ifdef PNG_FREE_ME_SUPPORTED png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans,
png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_ptr->free_me |= PNG_FREE_TRNS;
#else
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_ptr->flags |= PNG_FLAG_FREE_TRNS;
#endif
png_set_tRNS(png_ptr, info_ptr, png_ptr->trans, png_ptr->num_trans,
&(png_ptr->trans_values)); &(png_ptr->trans_values));
} }
#endif #endif
@ -1416,6 +1398,7 @@ void /* PRIVATE */
png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{ {
int num, i; int num, i;
png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH];
png_debug(1, "in png_handle_hIST\n"); png_debug(1, "in png_handle_hIST\n");
@ -1440,34 +1423,26 @@ png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return; return;
} }
if (length != (png_uint_32)(2 * png_ptr->num_palette)) num = (int)length / 2 ;
if (num != png_ptr->num_palette)
{ {
png_warning(png_ptr, "Incorrect hIST chunk length"); png_warning(png_ptr, "Incorrect hIST chunk length");
png_crc_finish(png_ptr, length); png_crc_finish(png_ptr, length);
return; return;
} }
num = (int)length / 2 ;
png_ptr->hist = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(num * sizeof (png_uint_16)));
for (i = 0; i < num; i++) for (i = 0; i < num; i++)
{ {
png_byte buf[2]; png_byte buf[2];
png_crc_read(png_ptr, buf, 2); png_crc_read(png_ptr, buf, 2);
png_ptr->hist[i] = png_get_uint_16(buf); readbuf[i] = png_get_uint_16(buf);
} }
if (png_crc_finish(png_ptr, 0)) if (png_crc_finish(png_ptr, 0))
return; return;
#ifdef PNG_FREE_ME_SUPPORTED png_set_hIST(png_ptr, info_ptr, readbuf);
png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
png_ptr->free_me |= PNG_FREE_HIST;
#else
png_ptr->flags |= PNG_FLAG_FREE_HIST;
#endif
png_set_hIST(png_ptr, info_ptr, png_ptr->hist);
} }
#endif #endif

62
pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -133,12 +133,31 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
void PNGAPI void PNGAPI
png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
{ {
int i;
png_debug1(1, "in %s storage function\n", "hIST"); png_debug1(1, "in %s storage function\n", "hIST");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
if (info_ptr->num_palette == 0)
png_warning(png_ptr,
"Palette size 0, hIST allocation skipped.");
info_ptr->hist = hist; #ifdef PNG_FREE_ME_SUPPORTED
png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
#endif
png_ptr->hist = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(info_ptr->num_palette * sizeof (png_uint_16)));
for (i = 0; i < info_ptr->num_palette; i++)
png_ptr->hist[i] = hist[i];
info_ptr->hist = png_ptr->hist;
info_ptr->valid |= PNG_INFO_hIST; info_ptr->valid |= PNG_INFO_hIST;
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_HIST;
#else
png_ptr->flags |= PNG_FLAG_FREE_HIST;
#endif
} }
#endif #endif
@ -320,9 +339,26 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
info_ptr->palette = palette; /*
* It may not actually be necessary to set png_ptr->palette here;
* we do it for backward compatibility with the way the png_handle_tRNS
* function used to do the allocation.
*/
#ifdef PNG_FREE_ME_SUPPORTED
png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
#endif
png_ptr->palette = (png_colorp)png_zalloc(png_ptr, (uInt)num_palette,
sizeof (png_color));
memcpy(png_ptr->palette, palette, num_palette * sizeof (png_color));
info_ptr->palette = png_ptr->palette;
info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_PLTE;
#else
png_ptr->flags |= PNG_FLAG_FREE_PLTE;
#endif
info_ptr->num_palette = (png_uint_16)num_palette;
info_ptr->valid |= PNG_INFO_PLTE; info_ptr->valid |= PNG_INFO_PLTE;
} }
@ -631,7 +667,23 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
return; return;
if (trans != NULL) if (trans != NULL)
info_ptr->trans = trans; {
/*
* It may not actually be necessary to set png_ptr->trans here;
* we do it for backward compatibility with the way the png_handle_tRNS
* function used to do the allocation.
*/
#ifdef PNG_FREE_ME_SUPPORTED
png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
#endif
png_ptr->trans = info_ptr->trans = png_malloc(png_ptr, num_trans);
memcpy(info_ptr->trans, trans, num_trans);
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_TRNS;
#else
png_ptr->flags |= PNG_FLAG_FREE_TRNS;
#endif
}
if (trans_values != NULL) if (trans_values != NULL)
{ {

4
pngtest.c
View File

@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng /* pngtest.c - a simple test program to test libpng
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -1449,4 +1449,4 @@ main(int argc, char *argv[])
} }
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_9rc1 your_png_h_is_not_version_1_0_9rc1; typedef version_1_0_9beta7 your_png_h_is_not_version_1_0_9beta7;

2
pngtrans.c
View File

@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngvcrd.c
View File

@ -2,7 +2,7 @@
* *
* For Intel x86 CPU and Microsoft Visual C++ compiler * For Intel x86 CPU and Microsoft Visual C++ compiler
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation * Copyright (c) 1998, Intel Corporation

2
pngwio.c
View File

@ -1,7 +1,7 @@
/* pngwio.c - functions for data output /* pngwio.c - functions for data output
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

4
pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -64,7 +64,7 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
#endif #endif
#if defined(PNG_WRITE_iCCP_SUPPORTED) #if defined(PNG_WRITE_iCCP_SUPPORTED)
if (info_ptr->valid & PNG_INFO_iCCP) if (info_ptr->valid & PNG_INFO_iCCP)
png_write_iCCP(png_ptr, info_ptr->iccp_name, PNG_TEXT_COMPRESSION_zTXt, png_write_iCCP(png_ptr, info_ptr->iccp_name, PNG_COMPRESSION_TYPE_BASE,
info_ptr->iccp_profile, (int)info_ptr->iccp_proflen); info_ptr->iccp_profile, (int)info_ptr->iccp_proflen);
#endif #endif
#if defined(PNG_WRITE_sBIT_SUPPORTED) #if defined(PNG_WRITE_sBIT_SUPPORTED)

2
pngwtran.c
View File

@ -1,7 +1,7 @@
/* pngwtran.c - transforms the data in a row for PNG writers /* pngwtran.c - transforms the data in a row for PNG writers
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

6
pngwutil.c
View File

@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file /* pngwutil.c - utilities to write a PNG file
* *
* libpng 1.0.9rc1 - December 23, 2000 * libpng 1.0.9beta7 - December 28, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -677,7 +677,7 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
return; return;
} }
if (compression_type) if (compression_type != PNG_COMPRESSION_TYPE_BASE)
png_warning(png_ptr, "Unknown compression type in iCCP chunk"); png_warning(png_ptr, "Unknown compression type in iCCP chunk");
if (profile == NULL) if (profile == NULL)
@ -685,7 +685,7 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
if (profile_len) if (profile_len)
profile_len = png_text_compress(png_ptr, profile, (png_size_t)profile_len, profile_len = png_text_compress(png_ptr, profile, (png_size_t)profile_len,
PNG_TEXT_COMPRESSION_zTXt, &comp); PNG_COMPRESSION_TYPE_BASE, &comp);
/* make sure we include the NULL after the name and the compression type */ /* make sure we include the NULL after the name and the compression type */
png_write_chunk_start(png_ptr, (png_bytep)png_iCCP, png_write_chunk_start(png_ptr, (png_bytep)png_iCCP,

2
projects/msvc/README.txt
View File

@ -1,5 +1,5 @@
Microsoft Developer Studio Build File, Format Version 6.00 for Microsoft Developer Studio Build File, Format Version 6.00 for
libpng 1.0.9rc1 (December 23, 2000) and zlib libpng 1.0.9beta7 (December 28, 2000) and zlib
Copyright (C) 2000 Simon-Pierre Cadieux Copyright (C) 2000 Simon-Pierre Cadieux
For conditions of distribution and use, see copyright notice in png.h For conditions of distribution and use, see copyright notice in png.h

2
projects/msvc/png32ms.def
View File

@ -6,7 +6,7 @@ LIBRARY
DESCRIPTION "PNG image compression library for Windows" DESCRIPTION "PNG image compression library for Windows"
EXPORTS EXPORTS
;Version 1.0.9rc1 ;Version 1.0.9beta7
png_build_grayscale_palette @1 png_build_grayscale_palette @1
png_check_sig @2 png_check_sig @2
png_chunk_error @3 png_chunk_error @3

8
projects/wince/READMEE.WCE
View File

@ -8,9 +8,9 @@ libpng for WindowsCE Rel.1.0
Introduction Introduction
============ ============
This is libpng 1.0.9rc1 ported to WindowsCE 2.0 and 2.11. This is libpng 1.0.9beta7 ported to WindowsCE 2.0 and 2.11.
libpng 1.0.9rc1 is a PNG reference library. libpng 1.0.9beta7 is a PNG reference library.
See README, a document of original libpng 1.0.9rc1. See README, a document of original libpng 1.0.9beta7.
zlib for WindowsCE zlib for WindowsCE
================== ==================
@ -23,7 +23,7 @@ This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages warranty. In no event will the authors be held liable for any damages
arising from the use of this software. arising from the use of this software.
See README and LICENSE, documents of original libpng 1.0.9rc1, for conditions See README and LICENSE, documents of original libpng 1.0.9beta7, for conditions
of use and distribution. of use and distribution.
Files Files

2
projects/wince/READMEJ.WCE
View File

@ -24,7 +24,7 @@ libpng
になったいかなる被害についても、作者、配布者、その他利用者以外の人物、 になったいかなる被害についても、作者、配布者、その他利用者以外の人物、
団体に責任をとる義務はないものとします。 団体に責任をとる義務はないものとします。
その他、このソフトウェアの利用条件については、原版である libpng 1.0.9rc1に その他、このソフトウェアの利用条件については、原版である libpng 1.0.9beta7に
準拠するものとします。詳しくは、付属の README,LICENSE をお読みください。 準拠するものとします。詳しくは、付属の README,LICENSE をお読みください。
収録内容 収録内容

2
projects/wince/png32ce.def
View File

@ -5,7 +5,7 @@
LIBRARY lpngce LIBRARY lpngce
EXPORTS EXPORTS
;Version 1.0.9rc1 ;Version 1.0.9beta7
png_build_grayscale_palette @1 png_build_grayscale_palette @1
png_check_sig @2 png_check_sig @2
png_chunk_error @3 png_chunk_error @3

2
scripts/makefile.aix
View File

@ -18,7 +18,7 @@ RM = rm -f
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local prefix=/usr/local

2
scripts/makefile.beos
View File

@ -31,7 +31,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# where make install puts libpng.a, libpng.so*, and png.h # where make install puts libpng.a, libpng.so*, and png.h

2
scripts/makefile.cygwin
View File

@ -38,7 +38,7 @@ CFLAGS=-I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(PNGMAJ).dll SHAREDLIB=cygpng$(PNGMAJ).dll

2
scripts/makefile.dec
View File

@ -17,7 +17,7 @@ ZLIBINC=../zlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
CC=cc CC=cc

2
scripts/makefile.gcmmx
View File

@ -37,7 +37,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.hpux
View File

@ -18,7 +18,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# where make install puts libpng.a and png.h # where make install puts libpng.a and png.h

2
scripts/makefile.linux
View File

@ -34,7 +34,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.sco
View File

@ -25,7 +25,7 @@ RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

4
scripts/makefile.sggcc
View File

@ -19,8 +19,8 @@ CFLAGS=-I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32 # -g -DPNG_DEBUG=5
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=gcc -shared LDSHARED=gcc -shared
VER=1.0.9rc1 VER=1.0.9beta7
LIBS=libpng.so.1.0.9rc1 LIBS=libpng.so.1.0.9beta7
SHAREDLIB=libpng.so SHAREDLIB=libpng.so
libdir=$(prefix)/lib32 libdir=$(prefix)/lib32

2
scripts/makefile.solaris
View File

@ -31,7 +31,7 @@ RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.9rc1 PNGMIN = 1.0.9beta7
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/pngdef.pas
View File

@ -5,7 +5,7 @@ unit pngdef;
interface interface
const const
PNG_LIBPNG_VER_STRING = '1.0.9rc1'; PNG_LIBPNG_VER_STRING = '1.0.9beta7';
PNG_LIBPNG_VER = 10009; PNG_LIBPNG_VER = 10009;
type type