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Imported from libpng-1.2.30beta03.tar

This commit is contained in:
Glenn Randers-Pehrson 2008-07-06 06:05:04 -05:00
parent eb1cd11d57
commit b96b342561
62 changed files with 1570 additions and 474 deletions
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45
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.2.30beta02 - June 25, 2008
Libpng 1.2.30beta03 - July 6, 2008
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.
@ -9,37 +9,37 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
libpng-1.2.30beta02.tar.gz
libpng-1.2.30beta02.tar.lzma
libpng-1.2.30beta03.tar.gz
libpng-1.2.30beta03.tar.lzma
(Get the lzma codec from <http://tukaani.org/lzma>).
libpng-1.2.30beta02.tar.bz2
libpng-1.2.30beta03.tar.bz2
Source files with LF line endings (for Unix/Linux) without the
"configure" script
libpng-1.2.30beta02-no-config.tar.gz
libpng-1.2.30beta02-no-config.tar.lzma
libpng-1.2.30beta02-no-config.tar.bz2
libpng-1.2.30beta03-no-config.tar.gz
libpng-1.2.30beta03-no-config.tar.lzma
libpng-1.2.30beta03-no-config.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lp1230b02.zip
lp1230b02.7z
lp1230b02.tar.bz2
lp1230b03.zip
lp1230b03.7z
lp1230b03.tar.bz2
Project files
libpng-1.2.30beta02-project-netware.zip
libpng-1.2.30beta02-project-wince.zip
libpng-1.2.30beta03-project-netware.zip
libpng-1.2.30beta03-project-wince.zip
Other information:
libpng-1.2.30beta02-README.txt
libpng-1.2.30beta02-KNOWNBUGS.txt
libpng-1.2.30beta02-LICENSE.txt
libpng-1.2.30beta02-Y2K-compliance.txt
libpng-1.2.30beta02-[previous version]-diff.txt
libpng-1.2.30beta03-README.txt
libpng-1.2.30beta03-KNOWNBUGS.txt
libpng-1.2.30beta03-LICENSE.txt
libpng-1.2.30beta03-Y2K-compliance.txt
libpng-1.2.30beta03-[previous version]-diff.txt
Changes since the last public release (1.2.29):
@ -70,6 +70,17 @@ version 1.2.30beta01 [May 29, 2008]
Updated libpng.pc-configure.in and libpng-config.in per debian bug reports.
version 1.2.30beta02 [June 25, 2008]
Restored png_flush(png_ptr) at the end of png_write_end(), that was
removed from libpng-1.0.9beta03.
version 1.2.30beta03 [July 6, 2008]
Merged some cosmetic whitespace changes from libpng-1.4.0beta19.
Inline call of png_get_uint_32() in png_get_uint_31(), as in 1.4.0beta19.
Added demo of decoding vpAg and sTER chunks to pngtest.c, from 1.4.0beta19.
Changed PNGMAJ from 0 to 12 in makefile.darwin, which does not like 0.
Added new private function png_read_chunk_header() from 1.4.0beta19.
Merge reading of chunk length and chunk type into a single 8-byte read.
Merge writing of chunk length and chunk type into a single 8-byte write.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net

9
CHANGES
View File

@ -2174,6 +2174,15 @@ version 1.2.30beta02 [June 25, 2008]
Restored png_flush(png_ptr) at the end of png_write_end(), that was
removed from libpng-1.0.9beta03.
version 1.2.30beta03 [July 6, 2008]
Merged some cosmetic whitespace changes from libpng-1.4.0beta19.
Inline call of png_get_uint_32() in png_get_uint_31(), as in 1.4.0beta19.
Added demo of decoding vpAg and sTER chunks to pngtest.c, from 1.4.0beta19.
Changed PNGMAJ from 0 to 12 in makefile.darwin, which does not like 0.
Added new private function png_read_chunk_header() from 1.4.0beta19.
Merge reading of chunk length and chunk type into a single 8-byte read.
Merge writing of chunk length and chunk type into a single 8-byte write.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement

16
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.2.30beta02 - June 25, 2008
Installing libpng version 1.2.30beta03 - July 6, 2008
On Unix/Linux and similar systems, you can simply type
@ -44,7 +44,7 @@ to have access to the zlib.h and zconf.h include files that
correspond to the version of zlib that's installed.
You can rename the directories that you downloaded (they
might be called "libpng-1.2.30beta02" or "lpng109" and "zlib-1.2.1"
might be called "libpng-1.2.30beta03" 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:
@ -101,9 +101,9 @@ include
CMakeLists.txt => "cmake" script
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.elf => Linux/ELF makefile symbol versioning,
gcc, creates libpng12.so.0.1.2.30beta02)
gcc, creates libpng12.so.0.1.2.30beta03)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng12.so.0.1.2.30beta02)
(gcc, creates libpng12.so.0.1.2.30beta03)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
@ -125,14 +125,14 @@ include
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc,
creates libpng12.so.0.1.2.30beta02)
creates libpng12.so.0.1.2.30beta03)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc,
creates libpng12.so.0.1.2.30beta02)
creates libpng12.so.0.1.2.30beta03)
makefile.solaris-x86 => Solaris/intelMMX 2.X makefile (gcc,
creates libpng12.so.0.1.2.30beta02)
creates libpng12.so.0.1.2.30beta03)
makefile.so9 => Solaris 9 makefile (gcc,
creates libpng12.so.0.1.2.30beta02)
creates libpng12.so.0.1.2.30beta03)
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

2
KNOWNBUG
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@ -1,5 +1,5 @@
Known bugs in libpng version 1.2.30beta02
Known bugs in libpng version 1.2.30beta03
1. February 23, 2006: The custom makefiles don't build libpng with -lz.

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
this sentence.
libpng versions 1.2.6, August 15, 2004, through 1.2.30beta02, June 25, 2008, are
libpng versions 1.2.6, August 15, 2004, through 1.2.30beta03, July 6, 2008, are
Copyright (c) 2004, 2006-2008 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 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
June 25, 2008
July 6, 2008

2
Makefile.am
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@ -86,7 +86,7 @@ EXTRA_DIST= \
${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \
$(TESTS) \
example.c libpng-1.2.30beta02.txt pngvcrd.c
example.c libpng-1.2.30beta03.txt pngvcrd.c
CLEANFILES= pngout.png libpng12.pc libpng12-config libpng.vers \
libpng.sym

2
Makefile.in
View File

@ -331,7 +331,7 @@ EXTRA_DIST = \
${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \
$(TESTS) \
example.c libpng-1.2.30beta02.txt pngvcrd.c
example.c libpng-1.2.30beta03.txt pngvcrd.c
CLEANFILES = pngout.png libpng12.pc libpng12-config libpng.vers \
libpng.sym

14
README
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@ -1,4 +1,4 @@
README for libpng version 1.2.30beta02 - June 25, 2008 (shared library 12.0)
README for libpng version 1.2.30beta03 - July 6, 2008 (shared library 12.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
@ -194,11 +194,11 @@ Files in this distribution:
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 libpng12.so.0.1.2.30beta02)
gcc, creates libpng12.so.0.1.2.30beta03)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng12.so.0.1.2.30beta02)
(gcc, creates libpng12.so.0.1.2.30beta03)
makefile.gcmmx => Linux/ELF makefile
(gcc, creates libpng12.so.0.1.2.30beta02,
(gcc, creates libpng12.so.0.1.2.30beta03,
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
@ -220,12 +220,12 @@ Files in this distribution:
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics
(gcc, creates libpng12.so.0.1.2.30beta02)
(gcc, creates libpng12.so.0.1.2.30beta03)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng12.so.0.1.2.30beta02)
(gcc, creates libpng12.so.0.1.2.30beta03)
makefile.so9 => Solaris 9 makefile
(gcc, creates libpng12.so.0.1.2.30beta02)
(gcc, creates libpng12.so.0.1.2.30beta03)
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

4
Y2KINFO
View File

@ -1,13 +1,13 @@
Y2K compliance in libpng:
=========================
June 25, 2008
July 6, 2008
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 1.2.30beta02 are Y2K compliant. It is my belief that earlier
upward through 1.2.30beta03 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

22
configure vendored
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@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.62 for libpng 1.2.30beta02.
# Generated by GNU Autoconf 2.62 for libpng 1.2.30beta03.
#
# Report bugs to <png-mng-implement@lists.sourceforge.net>.
#
@ -745,8 +745,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
# Identity of this package.
PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng'
PACKAGE_VERSION='1.2.30beta02'
PACKAGE_STRING='libpng 1.2.30beta02'
PACKAGE_VERSION='1.2.30beta03'
PACKAGE_STRING='libpng 1.2.30beta03'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
ac_unique_file="pngget.c"
@ -1484,7 +1484,7 @@ if test "$ac_init_help" = "long"; then
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
\`configure' configures libpng 1.2.30beta02 to adapt to many kinds of systems.
\`configure' configures libpng 1.2.30beta03 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@ -1554,7 +1554,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
short | recursive ) echo "Configuration of libpng 1.2.30beta02:";;
short | recursive ) echo "Configuration of libpng 1.2.30beta03:";;
esac
cat <<\_ACEOF
@ -1661,7 +1661,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
libpng configure 1.2.30beta02
libpng configure 1.2.30beta03
generated by GNU Autoconf 2.62
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@ -1675,7 +1675,7 @@ cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by libpng $as_me 1.2.30beta02, which was
It was created by libpng $as_me 1.2.30beta03, which was
generated by GNU Autoconf 2.62. Invocation command line was
$ $0 $@
@ -2389,7 +2389,7 @@ fi
# Define the identity of the package.
PACKAGE='libpng'
VERSION='1.2.30beta02'
VERSION='1.2.30beta03'
cat >>confdefs.h <<_ACEOF
@ -2558,7 +2558,7 @@ fi
PNGLIB_VERSION=1.2.30beta02
PNGLIB_VERSION=1.2.30beta03
PNGLIB_MAJOR=1
PNGLIB_MINOR=2
PNGLIB_RELEASE=30
@ -13125,7 +13125,7 @@ exec 6>&1
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by libpng $as_me 1.2.30beta02, which was
This file was extended by libpng $as_me 1.2.30beta03, which was
generated by GNU Autoconf 2.62. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@ -13178,7 +13178,7 @@ Report bugs to <bug-autoconf@gnu.org>."
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_version="\\
libpng config.status 1.2.30beta02
libpng config.status 1.2.30beta03
configured by $0, generated by GNU Autoconf 2.62,
with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

4
configure.ac
View File

@ -18,12 +18,12 @@ AC_PREREQ(2.59)
dnl Version number stuff here:
AC_INIT([libpng], [1.2.30beta02], [png-mng-implement@lists.sourceforge.net])
AC_INIT([libpng], [1.2.30beta03], [png-mng-implement@lists.sourceforge.net])
AM_INIT_AUTOMAKE
dnl stop configure from automagically running automake
AM_MAINTAINER_MODE
PNGLIB_VERSION=1.2.30beta02
PNGLIB_VERSION=1.2.30beta03
PNGLIB_MAJOR=1
PNGLIB_MINOR=2
PNGLIB_RELEASE=30

6
example.c
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@ -2,9 +2,9 @@
#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
* Last changed in libpng 1.2.1 December 7, 2001.
* Last changed in libpng 1.2.30 [July 6, 2008]
* This file has been placed in the public domain by the authors.
* Maintained 1998-2007 Glenn Randers-Pehrson
* Maintained 1998-2008 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)
* Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*/
@ -637,7 +637,7 @@ void write_png(char *file_name /* , ... other image information ... */)
/* set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH
* png_sizeof (png_color));
* png_sizeof(png_color));
/* ... set palette colors ... */
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

8
libpng-1.2.30beta02.txt → libpng-1.2.30beta03.txt
View File

@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.2.30beta02 - June 25, 2008
libpng version 1.2.30beta03 - July 6, 2008
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2008 Glenn Randers-Pehrson
@ -9,7 +9,7 @@ libpng.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.2.30beta02 - June 25, 2008
libpng versions 0.97, January 1998, through 1.2.30beta03 - July 6, 2008
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2008 Glenn Randers-Pehrson
@ -2851,13 +2851,13 @@ application:
IX. Y2K Compliance in libpng
June 25, 2008
July 6, 2008
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 1.2.30beta02 are Y2K compliant. It is my belief that earlier
upward through 1.2.30beta03 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

447
libpng.3
View File

@ -1,404 +1,815 @@
.TH LIBPNG 3 "June 25, 2008"
.TH LIBPNG 3 "July 6, 2008"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.30beta02
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.30beta03
.SH SYNOPSIS
\fB
#include <png.h>\fP
\fI\fB
\fB#include <png.h>\fP
\fI\fB
\fBpng_uint_32 png_access_version_number \fI(void\fP\fB);\fP
\fI\fB
\fBint png_check_sig (png_bytep \fP\fIsig\fP\fB, int \fInum\fP\fB);\fP
\fI\fB
\fBvoid png_chunk_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
\fI\fB
\fBvoid png_chunk_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP
\fI\fB
\fBvoid png_convert_from_struct_tm (png_timep \fP\fIptime\fP\fB, struct tm FAR * \fIttime\fP\fB);\fP
\fI\fB
\fBvoid png_convert_from_time_t (png_timep \fP\fIptime\fP\fB, time_t \fIttime\fP\fB);\fP
\fI\fB
\fBpng_charp png_convert_to_rfc1123 (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fIptime\fP\fB);\fP
\fI\fB
\fBpng_infop png_create_info_struct (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
\fI\fB
\fBpng_structp png_create_read_struct_2(png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
\fI\fB
\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
\fI\fB
\fBpng_structp png_create_write_struct_2(png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
\fI\fB
\fBint png_debug(int \fP\fIlevel\fP\fB, png_const_charp \fImessage\fP\fB);\fP
\fI\fB
\fBint png_debug1(int \fP\fIlevel\fP\fB, png_const_charp \fP\fImessage\fP\fB, \fIp1\fP\fB);\fP
\fI\fB
\fBint png_debug2(int \fP\fIlevel\fP\fB, png_const_charp \fP\fImessage\fP\fB, \fP\fIp1\fP\fB, \fIp2\fP\fB);\fP
\fI\fB
\fBvoid png_destroy_info_struct (png_structp \fP\fIpng_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_destroy_read_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fP\fIinfo_ptr_ptr\fP\fB, png_infopp \fIend_info_ptr_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_destroy_write_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
\fI\fB
\fBvoid png_free (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP
\fI\fB
\fBvoid png_free_chunk_list (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_free_default(png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP
\fI\fB
\fBvoid png_free_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fInum\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_bit_depth (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fI*background\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_channels (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*white_x\fP\fB, double \fP\fI*white_y\fP\fB, double \fP\fI*red_x\fP\fB, double \fP\fI*red_y\fP\fB, double \fP\fI*green_x\fP\fB, double \fP\fI*green_y\fP\fB, double \fP\fI*blue_x\fP\fB, double \fI*blue_y\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*white_x\fP\fB, png_uint_32 \fP\fI*white_y\fP\fB, png_uint_32 \fP\fI*red_x\fP\fB, png_uint_32 \fP\fI*red_y\fP\fB, png_uint_32 \fP\fI*green_x\fP\fB, png_uint_32 \fP\fI*green_y\fP\fB, png_uint_32 \fP\fI*blue_x\fP\fB, png_uint_32 \fI*blue_y\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_color_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_compression_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_copyright (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_error_ptr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_filter_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fI*file_gamma\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fI*int_file_gamma\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_header_ver (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_header_version (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fI*hist\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charpp \fP\fIname\fP\fB, int \fP\fI*compression_type\fP\fB, png_charpp \fP\fIprofile\fP\fB, png_uint_32 \fI*proflen\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*width\fP\fB, png_uint_32 \fP\fI*height\fP\fB, int \fP\fI*bit_depth\fP\fB, int \fP\fI*color_type\fP\fB, int \fP\fI*interlace_type\fP\fB, int \fP\fI*compression_type\fP\fB, int \fI*filter_type\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_image_height (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_image_width (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fB#if !defined(PNG_1_0_X) png_int_32 png_get_int_32 (png_bytep buf); \fI#endif
\fI\fB
\fB#if \fI!defined(PNG_1_0_X)
\fBpng_int_32 png_get_int_32 (png_bytep \fIbuf\fP\fB);\fP
\fI\fB#endif
\fI\fB
\fBpng_byte png_get_interlace_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_io_ptr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_libpng_ver (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_mem_ptr(png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fI*purpose\fP\fB, png_int_32 \fP\fI*X0\fP\fB, png_int_32 \fP\fI*X1\fP\fB, int \fP\fI*type\fP\fB, int \fP\fI*nparams\fP\fB, png_charp \fP\fI*units\fP\fB, png_charpp \fI*params\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP
\fI\fB
\fBfloat png_get_pixel_aspect_ratio (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_pixels_per_meter (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_progressive_ptr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fI*palette\fP\fB, int \fI*num_palette\fP\fB);\fP
\fBpng_byte png_get_rgb_to_gray_status (png_structp png_ptr) png_uint_32 png_get_rowbytes (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_rgb_to_gray_status (png_structp \fIpng_ptr)
\fBpng_uint_32 png_get_rowbytes (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_bytepp png_get_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fI*sig_bit\fP\fB);\fP
\fI\fB
\fBpng_bytep png_get_signature (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fI*splt_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fI*intent\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fI*text_ptr\fP\fB, int \fI*num_text\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fI*mod_time\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fI*trans\fP\fB, int \fP\fI*num_trans\fP\fB, png_color_16p \fI*trans_values\fP\fB);\fP
\fB#if !defined(PNG_1_0_X) png_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
\fI\fB
\fB#if \fI!defined(PNG_1_0_X)
\fBpng_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_uint_31 (png_bytep \fIbuf\fP\fB);\fP
\fBpng_uint_32 png_get_uint_32 (png_bytep buf); \fI#endif
\fI\fB
\fBpng_uint_32 png_get_uint_32 (png_bytep \fIbuf\fP\fB);\fP
\fI\fB#endif
\fI\fB
\fBpng_uint_32 png_get_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkpp \fIunknowns\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_user_chunk_ptr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_user_height_max( png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_user_transform_ptr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_user_width_max (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_valid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIflag\fP\fB);\fP
\fI\fB
\fBpng_int_32 png_get_x_offset_microns (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_int_32 png_get_x_offset_pixels (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_x_pixels_per_meter (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_int_32 png_get_y_offset_microns (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_int_32 png_get_y_offset_pixels (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_y_pixels_per_meter (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_compression_buffer_size (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBint png_handle_as_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP
\fI\fB
\fBvoid png_init_io (png_structp \fP\fIpng_ptr\fP\fB, FILE \fI*fp\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_info_init (png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_info_init_2 (png_infopp \fP\fIptr_ptr\fP\fB, png_size_t \fIpng_info_struct_size\fP\fB);\fP
\fI\fB
\fBpng_voidp png_malloc (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
\fI\fB
\fBpng_voidp png_malloc_default(png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
\fI\fB
\fBvoidp png_memcpy (png_voidp \fP\fIs1\fP\fB, png_voidp \fP\fIs2\fP\fB, png_size_t \fIsize\fP\fB);\fP
\fI\fB
\fBpng_voidp png_memcpy_check (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIs1\fP\fB, png_voidp \fP\fIs2\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
\fI\fB
\fBvoidp png_memset (png_voidp \fP\fIs1\fP\fB, int \fP\fIvalue\fP\fB, png_size_t \fIsize\fP\fB);\fP
\fI\fB
\fBpng_voidp png_memset_check (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIs1\fP\fB, int \fP\fIvalue\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_permit_empty_plte (png_structp \fP\fIpng_ptr\fP\fB, int \fIempty_plte_permitted\fP\fB);\fP
\fI\fB
\fBvoid png_process_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_size\fP\fB);\fP
\fI\fB
\fBvoid png_progressive_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIold_row\fP\fB, png_bytep \fInew_row\fP\fB);\fP
\fI\fB
\fBvoid png_read_destroy (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_infop \fIend_info_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_read_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_read_init (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_read_init_2 (png_structpp \fP\fIptr_ptr\fP\fB, png_const_charp \fP\fIuser_png_ver\fP\fB, png_size_t \fP\fIpng_struct_size\fP\fB, png_size_t \fIpng_info_size\fP\fB);\fP
\fI\fB
\fBvoid png_read_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP
\fI\fB
\fBvoid png_read_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fIdisplay_row\fP\fB);\fP
\fI\fB
\fBvoid png_read_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_bytepp \fP\fIdisplay_row\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP
\fI\fB
\fBvoid png_read_update_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fB#if !defined(PNG_1_0_X) png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
\fI\fB
\fB#if \fI!defined(PNG_1_0_X)
\fBpng_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
\fI\fB
\fBvoid png_save_uint_16 (png_bytep \fP\fIbuf\fP\fB, unsigned int \fIi\fP\fB);\fP
\fI\fB
\fBvoid png_save_uint_32 (png_bytep \fP\fIbuf\fP\fB, png_uint_32 \fIi\fP\fB);\fP
\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int flags); \fI#endif
\fI\fB
\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP
\fI\fB#endif
\fI\fB
\fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP
\fI\fB
\fBvoid png_set_bgr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fIbackground\fP\fB);\fP
\fI\fB
\fBvoid png_set_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP
\fI\fB
\fBvoid png_set_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP
\fI\fB
\fBvoid png_set_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP
\fI\fB
\fBvoid png_set_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP
\fI\fB
\fBvoid png_set_compression_method (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod\fP\fB);\fP
\fI\fB
\fBvoid png_set_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP
\fI\fB
\fBvoid png_set_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP
\fI\fB
\fBvoid png_set_crc_action (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcrit_action\fP\fB, int \fIancil_action\fP\fB);\fP
\fI\fB
\fBvoid png_set_dither (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_dither\fP\fB);\fP
\fI\fB
\fBvoid png_set_error_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarning_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_expand (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_expand_gray_1_2_4_to_8(png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_filler (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP
\fI\fB
\fBvoid png_set_filter (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImethod\fP\fB, int \fIfilters\fP\fB);\fP
\fI\fB
\fBvoid png_set_filter_heuristics (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_doublep \fP\fIfilter_weights\fP\fB, png_doublep \fIfilter_costs\fP\fB);\fP
\fI\fB
\fBvoid png_set_flush (png_structp \fP\fIpng_ptr\fP\fB, int \fInrows\fP\fB);\fP
\fI\fB
\fBvoid png_set_gamma (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIscreen_gamma\fP\fB, double \fIdefault_file_gamma\fP\fB);\fP
\fI\fB
\fBvoid png_set_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP
\fI\fB
\fBvoid png_set_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIfile_gamma\fP\fB);\fP
\fI\fB
\fBvoid png_set_gray_1_2_4_to_8(png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_gray_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fIhist\fP\fB);\fP
\fI\fB
\fBvoid png_set_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_charp \fP\fIprofile\fP\fB, png_uint_32 \fIproflen\fP\fB);\fP
\fI\fB
\fBint png_set_interlace_handling (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_invalid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fImask\fP\fB);\fP
\fI\fB
\fBvoid png_set_invert_alpha (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_invert_mono (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIinterlace_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fIfilter_type\fP\fB);\fP
\fI\fB
\fBvoid png_set_keep_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIkeep\fP\fB, png_bytep \fP\fIchunk_list\fP\fB, int \fInum_chunks\fP\fB);\fP
\fI\fB
\fBvoid png_set_mem_fn(png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP
\fI\fB
\fBvoid png_set_packing (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_packswap (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_palette_to_rgb(png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP
\fI\fB
\fBvoid png_set_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIres_x\fP\fB, png_uint_32 \fP\fIres_y\fP\fB, int \fIunit_type\fP\fB);\fP
\fI\fB
\fBvoid png_set_progressive_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIprogressive_ptr\fP\fB, png_progressive_info_ptr \fP\fIinfo_fn\fP\fB, png_progressive_row_ptr \fP\fIrow_fn\fP\fB, png_progressive_end_ptr \fIend_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP
\fI\fB
\fBvoid png_set_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fIread_data_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_read_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_read_status_ptr \fIread_row_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_read_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIread_user_transform_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_rgb_to_gray (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIerror_action\fP\fB, double \fP\fIred\fP\fB, double \fIgreen\fP\fB);\fP
\fI\fB
\fBvoid png_set_rgb_to_gray_fixed (png_structp \fP\fIpng_ptr\fP\fB, int error_action png_fixed_point \fP\fIred\fP\fB, png_fixed_point \fIgreen\fP\fB);\fP
\fI\fB
\fBvoid png_set_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytepp \fIrow_pointers\fP\fB);\fP
\fI\fB
\fBvoid png_set_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fIsig_bit\fP\fB);\fP
\fI\fB
\fBvoid png_set_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP
\fI\fB
\fBvoid png_set_shift (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fItrue_bits\fP\fB);\fP
\fI\fB
\fBvoid png_set_sig_bytes (png_structp \fP\fIpng_ptr\fP\fB, int \fInum_bytes\fP\fB);\fP
\fI\fB
\fBvoid png_set_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fP\fIsplt_ptr\fP\fB, int \fInum_spalettes\fP\fB);\fP
\fI\fB
\fBvoid png_set_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIintent\fP\fB);\fP
\fI\fB
\fBvoid png_set_sRGB_gAMA_and_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIintent\fP\fB);\fP
\fI\fB
\fBvoid png_set_strip_16 (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_strip_alpha (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_swap (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_swap_alpha (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP
\fI\fB
\fBvoid png_set_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP
\fI\fB
\fBvoid png_set_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fItrans\fP\fB, int \fP\fInum_trans\fP\fB, png_color_16p \fItrans_values\fP\fB);\fP
\fI\fB
\fBvoid png_set_tRNS_to_alpha(png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_set_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkp \fP\fIunknowns\fP\fB, int \fP\fInum\fP\fB, int \fIlocation\fP\fB);\fP
\fI\fB
\fBvoid png_set_unknown_chunk_location(png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIchunk\fP\fB, int \fIlocation\fP\fB);\fP
\fI\fB
\fBvoid png_set_read_user_chunk_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_chunk_ptr\fP\fB, png_user_chunk_ptr \fIread_user_chunk_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_user_limits (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIuser_width_max\fP\fB, png_uint_32 \fIuser_height_max\fP\fB);\fP
\fI\fB
\fBvoid png_set_user_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_transform_ptr\fP\fB, int \fP\fIuser_transform_depth\fP\fB, int \fIuser_transform_channels\fP\fB);\fP
\fI\fB
\fBvoid png_set_write_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fP\fIwrite_data_fn\fP\fB, png_flush_ptr \fIoutput_flush_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_write_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_write_status_ptr \fIwrite_row_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_write_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIwrite_user_transform_fn\fP\fB);\fP
\fI\fB
\fBvoid png_set_compression_buffer_size(png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
\fI\fB
\fBint png_sig_cmp (png_bytep \fP\fIsig\fP\fB, png_size_t \fP\fIstart\fP\fB, png_size_t \fInum_to_check\fP\fB);\fP
\fI\fB
\fBvoid png_start_read_image (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP
\fI\fB
\fBvoid png_write_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fBvoid png_write_chunk_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fBvoid png_write_chunk_end (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_write_chunk_start (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
\fI\fB
\fBvoid png_write_destroy (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_write_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_write_flush (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_write_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_write_init (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_write_init_2 (png_structpp \fP\fIptr_ptr\fP\fB, png_const_charp \fP\fIuser_png_ver\fP\fB, png_size_t \fP\fIpng_struct_size\fP\fB, png_size_t \fIpng_info_size\fP\fB);\fP
\fI\fB
\fBvoid png_write_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_write_info_before_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP
\fI\fB
\fBvoid png_write_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fBvoid png_write_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP
\fI\fB
\fBvoidpf png_zalloc (voidpf \fP\fIpng_ptr\fP\fB, uInt \fP\fIitems\fP\fB, uInt \fIsize\fP\fB);\fP
\fI\fB
\fBvoid png_zfree (voidpf \fP\fIpng_ptr\fP\fB, voidpf \fIptr\fP\fB);\fP
\fI\fB
.SH DESCRIPTION
The
.I libpng
@ -410,7 +821,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng
libpng version 1.2.30beta02 - June 25, 2008
libpng version 1.2.30beta03 - July 6, 2008
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2008 Glenn Randers-Pehrson
@ -419,7 +830,7 @@ libpng.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.2.30beta02 - June 25, 2008
libpng versions 0.97, January 1998, through 1.2.30beta03 - July 6, 2008
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2008 Glenn Randers-Pehrson
@ -3261,13 +3672,13 @@ application:
.SH IX. Y2K Compliance in libpng
June 25, 2008
July 6, 2008
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 1.2.30beta02 are Y2K compliant. It is my belief that earlier
upward through 1.2.30beta03 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
@ -3500,7 +3911,7 @@ the first widely used release:
1.0.35 10 10035 10.so.0.35[.0]
1.2.29 13 10229 12.so.0.29[.0]
1.0.37 10 10037 10.so.0.37[.0]
1.2.30beta01-02 13 10230 12.so.0.30[.0]
1.2.30beta01-03 13 10230 12.so.0.30[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@ -3556,7 +3967,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.2.30beta02 - June 25, 2008:
Libpng version 1.2.30beta03 - July 6, 2008:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -3577,7 +3988,7 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng versions 1.2.6, August 15, 2004, through 1.2.30beta02, June 25, 2008, are
libpng versions 1.2.6, August 15, 2004, through 1.2.30beta03, July 6, 2008, are
Copyright (c) 2004,2006-2008 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
@ -3676,7 +4087,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
June 25, 2008
July 6, 2008
.\" end of man page

520
libpngpf.3
View File

@ -1,266 +1,782 @@
.TH LIBPNGPF 3 "June 25, 2008"
.TH LIBPNGPF 3 "July 6, 2008"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.30beta02
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.30beta03
(private functions)
.SH SYNOPSIS
\fB#include <png.h>\fP
\fI\fB
\fI\fB
\fBvoid png_build_gamma_table (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_build_grayscale_palette (int \fP\fIbit_depth\fP\fB, png_colorp \fIpalette\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_calculate_crc (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIptr\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_check_chunk_name (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP
\fI\fB
\fI\fB
\fBpng_size_t png_check_keyword (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charpp \fInew_key\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fImask\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_correct_palette (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP
\fI\fB
\fI\fB
\fBint png_crc_error (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBint png_crc_finish (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIskip\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_crc_read (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuf\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fI\fB
\fBpng_voidp png_create_struct (int \fItype\fP\fB);\fP
\fI\fB
\fI\fB
\fBpng_voidp png_create_struct_2 (int \fP\fItype\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_voidp \fImem_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBpng_charp png_decompress_chunk (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcomp_type\fP\fB, png_charp \fP\fIchunkdata\fP\fB, png_size_t \fP\fIchunklength\fP\fB, png_size_t \fP\fIprefix_length\fP\fB, png_size_t \fI*data_length\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_destroy_struct (png_voidp \fIstruct_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_destroy_struct_2 (png_voidp \fP\fIstruct_ptr\fP\fB, png_free_ptr \fP\fIfree_fn\fP\fB, png_voidp \fImem_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_background (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_16p \fP\fItrans_values\fP\fB, png_color_16p \fP\fIbackground\fP\fB, png_color_16p \fP\fIbackground_1\fP\fB, png_bytep \fP\fIgamma_table\fP\fB, png_bytep \fP\fIgamma_from_1\fP\fB, png_bytep \fP\fIgamma_to_1\fP\fB, png_uint_16pp \fP\fIgamma_16\fP\fB, png_uint_16pp \fP\fIgamma_16_from_1\fP\fB, png_uint_16pp \fP\fIgamma_16_to_1\fP\fB, int \fIgamma_shift\fP\fB);\fP
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\fBvoid png_do_bgr (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_chop (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_dither (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIpalette_lookup\fP\fB, png_bytep \fIdither_lookup\fP\fB);\fP
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\fBvoid png_do_expand (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_16p \fItrans_value\fP\fB);\fP
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\fBvoid png_do_expand_palette (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_colorp \fP\fIpalette\fP\fB, png_bytep \fP\fItrans\fP\fB, int \fInum_trans\fP\fB);\fP
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\fBvoid png_do_gamma (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIgamma_table\fP\fB, png_uint_16pp \fP\fIgamma_16_table\fP\fB, int \fIgamma_shift\fP\fB);\fP
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\fBvoid png_do_gray_to_rgb (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_invert (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_pack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fIbit_depth\fP\fB);\fP
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\fBvoid png_do_packswap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_read_filler (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, png_uint_32 \fIflags\fP\fB);\fP
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\fBvoid png_do_read_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fP\fIpass\fP\fB, png_uint_32 \fItransformations\fP\fB);\fP
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\fBvoid png_do_read_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_read_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP
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\fBint png_do_rgb_to_gray (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_shift (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_8p \fIbit_depth\fP\fB);\fP
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\fBvoid png_do_strip_filler (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fIflags\fP\fB);\fP
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\fBvoid png_do_swap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_unpack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_unshift (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_8p \fIsig_bits\fP\fB);\fP
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\fBvoid png_do_write_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fIpass\fP\fB);\fP
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\fBvoid png_do_write_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_write_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_do_write_transformations (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid *png_far_to_near (png_structp png_ptr,png_voidp \fP\fIptr\fP\fB, int \fIcheck\fP\fB);\fP
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\fBvoid png_flush (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_handle_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_IEND (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_iTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_handle_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_info_destroy (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_init_mmx_flags (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_init_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_process_IDAT_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_length\fP\fB);\fP
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\fBvoid png_process_some_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_check_crc (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_push_crc_finish (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_push_crc_skip (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_push_fill_buffer (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIlength\fP\fB);\fP
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\fBvoid png_push_handle_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_push_handle_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_push_handle_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
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\fBvoid png_push_have_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_have_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_have_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
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\fBvoid png_push_process_row (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_push_read_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_read_IDAT (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_push_read_sig (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_read_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_read_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_push_restore_buffer (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_length\fP\fB);\fP
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\fBvoid png_push_save_buffer (png_structp \fIpng_ptr\fP\fB);\fP
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\fBpng_uint_32 png_read_chunk_header (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_read_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
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\fBvoid png_read_filter_row (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIprev_row\fP\fB, int \fIfilter\fP\fB);\fP
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\fBvoid png_read_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_read_push_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_read_start_row (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_read_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
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\fBvoid png_reset_crc (png_structp \fIpng_ptr\fP\fB);\fP
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\fBint png_set_text_2 (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP
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\fBvoid png_write_cHRM (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP
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\fBvoid png_write_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP
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\fBvoid png_write_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
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\fBvoid png_write_filtered_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIfiltered_row\fP\fB);\fP
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\fBvoid png_write_find_filter (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fIrow_info\fP\fB);\fP
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\fBvoid png_write_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_write_gAMA (png_structp \fP\fIpng_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP
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\fBvoid png_write_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIint_file_gamma\fP\fB);\fP
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\fBvoid png_write_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_uint_16p \fP\fIhist\fP\fB, int \fInum_hist\fP\fB);\fP
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\fBvoid png_write_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_charp \fP\fIprofile\fP\fB, int \fIproflen\fP\fB);\fP
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\fBvoid png_write_IDAT (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
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\fBvoid png_write_IEND (png_structp \fIpng_ptr\fP\fB);\fP
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\fBvoid png_write_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fP\fIfilter_type\fP\fB, int \fIinterlace_type\fP\fB);\fP
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\fBvoid png_write_iTXt (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcompression\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fIlang\fP\fB, png_charp \fP\fItranslated_key\fP\fB, png_charp \fItext\fP\fB);\fP
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\fBvoid png_write_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIx_offset\fP\fB, png_uint_32 \fP\fIy_offset\fP\fB, int \fIunit_type\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIx_pixels_per_unit\fP\fB, png_uint_32 \fP\fIy_pixels_per_unit\fP\fB, int \fIunit_type\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, png_uint_32 \fInum_pal\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fP\fIsbit\fP\fB, int \fIcolor_type\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_sCAL_s (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIunit\fP\fB, png_charp \fP\fIwidth\fP\fB, png_charp \fIheight\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_sig (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_sRGB (png_structp \fP\fIpng_ptr\fP\fB, int \fIintent\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_spalette_p \fIpalette\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_start_row (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fItext\fP\fB, png_size_t \fItext_len\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fItrans\fP\fB, png_color_16p \fP\fIvalues\fP\fB, int \fP\fInumber\fP\fB, int \fIcolor_type\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fItext\fP\fB, png_size_t \fP\fItext_len\fP\fB, int \fIcompression\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoidpf png_zalloc (voidpf \fP\fIpng_ptr\fP\fB, uInt \fP\fIitems\fP\fB, uInt \fIsize\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_zfree (voidpf \fP\fIpng_ptr\fP\fB, voidpf \fIptr\fP\fB);\fP
\fI\fB
\fI\fB
.SH DESCRIPTION
The functions listed above are used privately by libpng
and are not recommended for use by applications. They are

2
png.5
View File

@ -1,4 +1,4 @@
.TH PNG 5 "June 25, 2008"
.TH PNG 5 "July 6, 2008"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

14
png.c
View File

@ -1,9 +1,9 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.2.21 October 4, 2007
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2007 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 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.)
*/
@ -13,7 +13,7 @@
#include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_2_30beta02 Your_png_h_is_not_version_1_2_30beta02;
typedef version_1_2_30beta03 Your_png_h_is_not_version_1_2_30beta03;
/* Version information for C files. This had better match the version
* string defined in png.h. */
@ -314,7 +314,7 @@ png_info_init_3(png_infopp ptr_ptr, png_size_t png_info_struct_size)
}
/* set everything to 0 */
png_memset(info_ptr, 0, png_sizeof (png_info));
png_memset(info_ptr, 0, png_sizeof(png_info));
}
#ifdef PNG_FREE_ME_SUPPORTED
@ -669,7 +669,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
#ifdef USE_FAR_KEYWORD
{
char near_time_buf[29];
png_snprintf6(near_time_buf,29,"%d %s %d %02d:%02d:%02d +0000",
png_snprintf6(near_time_buf, 29, "%d %s %d %02d:%02d:%02d +0000",
ptime->day % 32, short_months[(ptime->month - 1) % 12],
ptime->year, ptime->hour % 24, ptime->minute % 60,
ptime->second % 61);
@ -677,7 +677,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
29*png_sizeof(char));
}
#else
png_snprintf6(png_ptr->time_buffer,29,"%d %s %d %02d:%02d:%02d +0000",
png_snprintf6(png_ptr->time_buffer, 29, "%d %s %d %02d:%02d:%02d +0000",
ptime->day % 32, short_months[(ptime->month - 1) % 12],
ptime->year, ptime->hour % 24, ptime->minute % 60,
ptime->second % 61);
@ -693,7 +693,7 @@ png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
{
png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */
return ((png_charp) "\n libpng version 1.2.30beta02 - June 25, 2008\n\
return ((png_charp) "\n libpng version 1.2.30beta03 - July 6, 2008\n\
Copyright (c) 1998-2008 Glenn Randers-Pehrson\n\
Copyright (c) 1996-1997 Andreas Dilger\n\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");

27
png.h
View File

@ -1,6 +1,6 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.2.30beta02 - June 25, 2008
* libpng version 1.2.30beta03 - July 6, 2008
* Copyright (c) 1998-2008 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.)
@ -8,7 +8,7 @@
* 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 1.2.30beta02 - June 25, 2008: Glenn
* libpng versions 0.97, January 1998, through 1.2.30beta03 - July 6, 2008: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -193,7 +193,7 @@
* 1.0.35 10 10035 10.so.0.35[.0]
* 1.2.29 13 10229 12.so.0.29[.0]
* 1.0.37 10 10037 10.so.0.37[.0]
* 1.2.30beta01-02 13 10230 12.so.0.30[.0]
* 1.2.30beta01-03 13 10230 12.so.0.30[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -223,7 +223,7 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.2.6, August 15, 2004, through 1.2.30beta02, June 25, 2008, are
* libpng versions 1.2.6, August 15, 2004, through 1.2.30beta03, July 6, 2008, are
* Copyright (c) 2004, 2006-2008 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:
@ -335,13 +335,13 @@
* Y2K compliance in libpng:
* =========================
*
* June 25, 2008
* July 6, 2008
*
* 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 1.2.30beta02 are Y2K compliant. It is my belief that earlier
* upward through 1.2.30beta03 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
@ -397,9 +397,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.2.30beta02"
#define PNG_LIBPNG_VER_STRING "1.2.30beta03"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.2.30beta02 - June 25, 2008\n"
" libpng version 1.2.30beta03 - July 6, 2008\n"
#define PNG_LIBPNG_VER_SONUM 0
#define PNG_LIBPNG_VER_DLLNUM 13
@ -411,7 +411,7 @@
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 02
#define PNG_LIBPNG_VER_BUILD 03
/* Release Status */
#define PNG_LIBPNG_BUILD_ALPHA 1
@ -1206,7 +1206,7 @@ struct png_struct_def
png_uint_32 row_number; /* current row in interlace pass */
png_bytep prev_row; /* buffer to save previous (unfiltered) row */
png_bytep row_buf; /* buffer to save current (unfiltered) row */
#ifndef PNG_NO_WRITE_FILTERING
#ifndef PNG_NO_WRITE_FILTER
png_bytep sub_row; /* buffer to save "sub" row when filtering */
png_bytep up_row; /* buffer to save "up" row when filtering */
png_bytep avg_row; /* buffer to save "avg" row when filtering */
@ -1446,13 +1446,14 @@ struct png_struct_def
/* New members added in libpng-1.2.26 */
png_uint_32 old_big_row_buf_size, old_prev_row_size;
};
/* 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_2_30beta02;
typedef png_structp version_1_2_30beta03;
typedef png_struct FAR * FAR * png_structpp;
@ -2647,6 +2648,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
png_ptr));
#endif
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
@ -3558,6 +3560,9 @@ png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type));
#endif /* PNG_pHYs_SUPPORTED */
#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */
/* Read the chunk header (length + type name) */
PNG_EXTERN png_uint_32 png_read_chunk_header PNGARG((png_structp png_ptr));
/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
#endif /* PNG_INTERNAL */

6
pngconf.h
View File

@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.2.30beta02 - June 25, 2008
* libpng version 1.2.30beta03 - July 6, 2008
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -1123,10 +1123,10 @@ typedef unsigned char png_byte;
change (I'm not sure if you will or not, so I thought I'd be safe) */
#ifdef PNG_SIZE_T
typedef PNG_SIZE_T png_size_t;
# define png_sizeof(x) png_convert_size(sizeof (x))
# define png_sizeof(x) png_convert_size(sizeof(x))
#else
typedef size_t png_size_t;
# define png_sizeof(x) sizeof (x)
# define png_sizeof(x) sizeof(x)
#endif
/* The following is needed for medium model support. It cannot be in the

8
pngerror.c
View File

@ -1,9 +1,9 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.2.22 [October 13, 2007]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2007 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 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.)
*
@ -15,8 +15,8 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
static void /* PRIVATE */
png_default_error PNGARG((png_structp png_ptr,
png_const_charp error_message));
@ -231,7 +231,7 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
error_message+offset);
}
else
fprintf(stderr, "libpng error: %s, offset=%d\n", error_message,offset);
fprintf(stderr, "libpng error: %s, offset=%d\n", error_message, offset);
}
else
#endif

5
pngget.c
View File

@ -1,16 +1,15 @@
/* pngget.c - retrieval of values from info struct
*
* Last changed in libpng 1.2.15 January 5, 2007
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2007 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 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.)
*/
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
png_uint_32 PNGAPI

11
pngmem.c
View File

@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -16,7 +16,6 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
/* Borland DOS special memory handler */
@ -210,7 +209,7 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
png_ptr->offset_table = table;
png_ptr->offset_table_ptr = farmalloc(num_blocks *
png_sizeof (png_bytep));
png_sizeof(png_bytep));
if (png_ptr->offset_table_ptr == NULL)
{
@ -369,7 +368,7 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
struct_ptr = (png_voidp)farmalloc(size);
#else
# if defined(_MSC_VER) && defined(MAXSEG_64K)
struct_ptr = (png_voidp)halloc(size,1);
struct_ptr = (png_voidp)halloc(size, 1);
# else
struct_ptr = (png_voidp)malloc(size);
# endif
@ -560,7 +559,7 @@ png_memcpy_check (png_structp png_ptr, png_voidp s1, png_voidp s2,
size = (png_size_t)length;
if ((png_uint_32)size != length)
png_error(png_ptr,"Overflow in png_memcpy_check.");
png_error(png_ptr, "Overflow in png_memcpy_check.");
return(png_memcpy (s1, s2, size));
}
@ -573,7 +572,7 @@ png_memset_check (png_structp png_ptr, png_voidp s1, int value,
size = (png_size_t)length;
if ((png_uint_32)size != length)
png_error(png_ptr,"Overflow in png_memset_check.");
png_error(png_ptr, "Overflow in png_memset_check.");
return (png_memset (s1, value, size));

66
pngpread.c
View File

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -10,7 +10,6 @@
#define PNG_INTERNAL
#include "png.h"
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
/* push model modes */
@ -210,7 +209,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
}
png_push_fill_buffer(png_ptr, chunk_length, 4);
png_ptr->push_length = png_get_uint_31(png_ptr,chunk_length);
png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
@ -606,7 +605,7 @@ png_push_save_buffer(png_structp png_ptr)
{
if (png_ptr->save_buffer_ptr != png_ptr->save_buffer)
{
png_size_t i,istop;
png_size_t i, istop;
png_bytep sp;
png_bytep dp;
@ -675,7 +674,7 @@ png_push_read_IDAT(png_structp png_ptr)
}
png_push_fill_buffer(png_ptr, chunk_length, 4);
png_ptr->push_length = png_get_uint_31(png_ptr,chunk_length);
png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
@ -1020,37 +1019,32 @@ png_read_push_finish_row(png_structp png_ptr)
png_ptr->rowbytes + 1);
do
{
int pass;
pass = png_ptr->pass;
pass++;
if ((pass == 1 && png_ptr->width < 5) ||
(pass == 3 && png_ptr->width < 3) ||
(pass == 5 && png_ptr->width < 2))
pass++;
png_ptr->pass++;
if ((png_ptr->pass == 1 && png_ptr->width < 5) ||
(png_ptr->pass == 3 && png_ptr->width < 3) ||
(png_ptr->pass == 5 && png_ptr->width < 2))
png_ptr->pass++;
if (pass > 7)
pass--;
png_ptr->pass = (png_byte) pass;
if (pass < 7)
{
png_ptr->iwidth = (png_ptr->width +
png_pass_inc[pass] - 1 -
png_pass_start[pass]) /
png_pass_inc[pass];
if (png_ptr->pass > 7)
png_ptr->pass--;
if (png_ptr->pass >= 7)
break;
png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,
png_ptr->iwidth) + 1;
png_ptr->iwidth = (png_ptr->width +
png_pass_inc[png_ptr->pass] - 1 -
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
if (png_ptr->transformations & PNG_INTERLACE)
break;
png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,
png_ptr->iwidth) + 1;
png_ptr->num_rows = (png_ptr->height +
png_pass_yinc[pass] - 1 -
png_pass_ystart[pass]) /
png_pass_yinc[pass];
}
else
break;
if (png_ptr->transformations & PNG_INTERLACE)
break;
png_ptr->num_rows = (png_ptr->height +
png_pass_yinc[png_ptr->pass] - 1 -
png_pass_ystart[png_ptr->pass]) /
png_pass_yinc[png_ptr->pass];
} while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0);
}
@ -1064,7 +1058,8 @@ png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
{
png_error(png_ptr, "Out of place tEXt");
info_ptr = info_ptr; /* to quiet some compiler warnings */
/* to quiet some compiler warnings */
if(info_ptr == NULL) return;
}
#ifdef PNG_MAX_MALLOC_64K
@ -1079,7 +1074,7 @@ png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
#endif
png_ptr->current_text = (png_charp)png_malloc(png_ptr,
(png_uint_32)(length+1));
(png_uint_32)(length + 1));
png_ptr->current_text[length] = '\0';
png_ptr->current_text_ptr = png_ptr->current_text;
png_ptr->current_text_size = (png_size_t)length;
@ -1507,7 +1502,8 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
png_ptr->unknown_chunk.data = NULL;
else
{
png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr, length);
png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr,
(png_uint_32)length);
png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length);
}
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)

150
pngread.c
View File

@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* Last changed in libpng 1.2.25 [February 18, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -13,7 +13,6 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED)
/* Create a PNG structure for reading, and allocate any memory needed. */
@ -79,7 +78,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
return (NULL);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf, jmpbuf, png_sizeof(jmp_buf));
#endif
#endif
@ -164,7 +163,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
PNG_ABORT();
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf, jmpbuf, png_sizeof(jmp_buf));
#else
if (setjmp(png_ptr->jmpbuf))
PNG_ABORT();
@ -265,7 +264,7 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof(jmp_buf));
#endif
if(png_sizeof(png_struct) > png_struct_size)
@ -276,11 +275,11 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
}
/* reset all variables to 0 */
png_memset(png_ptr, 0, png_sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof(png_struct));
#ifdef PNG_SETJMP_SUPPORTED
/* restore jump buffer */
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof(jmp_buf));
#endif
/* added at libpng-1.2.6 */
@ -406,38 +405,31 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
PNG_CONST PNG_zTXt;
#endif
#endif /* PNG_USE_LOCAL_ARRAYS */
png_byte chunk_length[4];
png_uint_32 length;
png_uint_32 length = png_read_chunk_header(png_ptr);
png_bytep chunk_name = png_ptr->chunk_name;
png_read_data(png_ptr, chunk_length, 4);
length = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name,
length);
chunk_name = png_ptr->chunk_name;
/* This should be a binary subdivision search or a hash for
* matching the chunk name rather than a linear search.
*/
if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
if (!png_memcmp(chunk_name, png_IDAT, 4))
if(png_ptr->mode & PNG_AFTER_IDAT)
png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT;
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
if (!png_memcmp(chunk_name, png_IHDR, 4))
png_handle_IHDR(png_ptr, info_ptr, length);
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
else if (!png_memcmp(chunk_name, png_IEND, 4))
png_handle_IEND(png_ptr, info_ptr, length);
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name))
else if (png_handle_as_unknown(png_ptr, chunk_name))
{
if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
if (!png_memcmp(chunk_name, png_IDAT, 4))
png_ptr->mode |= PNG_HAVE_IDAT;
png_handle_unknown(png_ptr, info_ptr, length);
if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
if (!png_memcmp(chunk_name, png_PLTE, 4))
png_ptr->mode |= PNG_HAVE_PLTE;
else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
else if (!png_memcmp(chunk_name, png_IDAT, 4))
{
if (!(png_ptr->mode & PNG_HAVE_IHDR))
png_error(png_ptr, "Missing IHDR before IDAT");
@ -448,9 +440,9 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
}
}
#endif
else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
else if (!png_memcmp(chunk_name, png_PLTE, 4))
png_handle_PLTE(png_ptr, info_ptr, length);
else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
else if (!png_memcmp(chunk_name, png_IDAT, 4))
{
if (!(png_ptr->mode & PNG_HAVE_IHDR))
png_error(png_ptr, "Missing IHDR before IDAT");
@ -463,71 +455,71 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
break;
}
#if defined(PNG_READ_bKGD_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4))
else if (!png_memcmp(chunk_name, png_bKGD, 4))
png_handle_bKGD(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_cHRM_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4))
else if (!png_memcmp(chunk_name, png_cHRM, 4))
png_handle_cHRM(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_gAMA_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4))
else if (!png_memcmp(chunk_name, png_gAMA, 4))
png_handle_gAMA(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_hIST_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4))
else if (!png_memcmp(chunk_name, png_hIST, 4))
png_handle_hIST(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_oFFs_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4))
else if (!png_memcmp(chunk_name, png_oFFs, 4))
png_handle_oFFs(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_pCAL_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4))
else if (!png_memcmp(chunk_name, png_pCAL, 4))
png_handle_pCAL(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sCAL_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4))
else if (!png_memcmp(chunk_name, png_sCAL, 4))
png_handle_sCAL(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_pHYs_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4))
else if (!png_memcmp(chunk_name, png_pHYs, 4))
png_handle_pHYs(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sBIT_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4))
else if (!png_memcmp(chunk_name, png_sBIT, 4))
png_handle_sBIT(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sRGB_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4))
else if (!png_memcmp(chunk_name, png_sRGB, 4))
png_handle_sRGB(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_iCCP_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4))
else if (!png_memcmp(chunk_name, png_iCCP, 4))
png_handle_iCCP(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sPLT_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4))
else if (!png_memcmp(chunk_name, png_sPLT, 4))
png_handle_sPLT(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_tEXt_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4))
else if (!png_memcmp(chunk_name, png_tEXt, 4))
png_handle_tEXt(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_tIME_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4))
else if (!png_memcmp(chunk_name, png_tIME, 4))
png_handle_tIME(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_tRNS_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4))
else if (!png_memcmp(chunk_name, png_tRNS, 4))
png_handle_tRNS(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_zTXt_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4))
else if (!png_memcmp(chunk_name, png_zTXt, 4))
png_handle_zTXt(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_iTXt_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4))
else if (!png_memcmp(chunk_name, png_iTXt, 4))
png_handle_iTXt(png_ptr, info_ptr, length);
#endif
else
@ -703,15 +695,9 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
{
while (!png_ptr->idat_size)
{
png_byte chunk_length[4];
png_crc_finish(png_ptr, 0);
png_read_data(png_ptr, chunk_length, 4);
png_ptr->idat_size = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_ptr->idat_size = png_read_chunk_header(png_ptr);
if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
png_error(png_ptr, "Not enough image data");
}
@ -880,7 +866,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image)
{
png_uint_32 i,image_height;
png_uint_32 i, image_height;
int pass, j;
png_bytepp rp;
@ -986,33 +972,35 @@ png_read_end(png_structp png_ptr, png_infop info_ptr)
PNG_CONST PNG_zTXt;
#endif
#endif /* PNG_USE_LOCAL_ARRAYS */
png_bytep chunk_name;
png_read_data(png_ptr, chunk_length, 4);
length = png_get_uint_31(png_ptr,chunk_length);
length = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
chunk_name = png_ptr->chunk_name;
png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
png_debug1(0, "Reading %s chunk.\n", chunk_name);
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
if (!png_memcmp(chunk_name, png_IHDR, 4))
png_handle_IHDR(png_ptr, info_ptr, length);
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
else if (!png_memcmp(chunk_name, png_IEND, 4))
png_handle_IEND(png_ptr, info_ptr, length);
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name))
else if (png_handle_as_unknown(png_ptr, chunk_name))
{
if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
if (!png_memcmp(chunk_name, png_IDAT, 4))
{
if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT))
png_error(png_ptr, "Too many IDAT's found");
}
png_handle_unknown(png_ptr, info_ptr, length);
if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
if (!png_memcmp(chunk_name, png_PLTE, 4))
png_ptr->mode |= PNG_HAVE_PLTE;
}
#endif
else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
else if (!png_memcmp(chunk_name, png_IDAT, 4))
{
/* Zero length IDATs are legal after the last IDAT has been
* read, but not after other chunks have been read.
@ -1021,74 +1009,74 @@ png_read_end(png_structp png_ptr, png_infop info_ptr)
png_error(png_ptr, "Too many IDAT's found");
png_crc_finish(png_ptr, length);
}
else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
else if (!png_memcmp(chunk_name, png_PLTE, 4))
png_handle_PLTE(png_ptr, info_ptr, length);
#if defined(PNG_READ_bKGD_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4))
else if (!png_memcmp(chunk_name, png_bKGD, 4))
png_handle_bKGD(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_cHRM_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4))
else if (!png_memcmp(chunk_name, png_cHRM, 4))
png_handle_cHRM(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_gAMA_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4))
else if (!png_memcmp(chunk_name, png_gAMA, 4))
png_handle_gAMA(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_hIST_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4))
else if (!png_memcmp(chunk_name, png_hIST, 4))
png_handle_hIST(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_oFFs_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4))
else if (!png_memcmp(chunk_name, png_oFFs, 4))
png_handle_oFFs(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_pCAL_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4))
else if (!png_memcmp(chunk_name, png_pCAL, 4))
png_handle_pCAL(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sCAL_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4))
else if (!png_memcmp(chunk_name, png_sCAL, 4))
png_handle_sCAL(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_pHYs_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4))
else if (!png_memcmp(chunk_name, png_pHYs, 4))
png_handle_pHYs(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sBIT_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4))
else if (!png_memcmp(chunk_name, png_sBIT, 4))
png_handle_sBIT(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sRGB_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4))
else if (!png_memcmp(chunk_name, png_sRGB, 4))
png_handle_sRGB(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_iCCP_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4))
else if (!png_memcmp(chunk_name, png_iCCP, 4))
png_handle_iCCP(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_sPLT_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4))
else if (!png_memcmp(chunk_name, png_sPLT, 4))
png_handle_sPLT(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_tEXt_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4))
else if (!png_memcmp(chunk_name, png_tEXt, 4))
png_handle_tEXt(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_tIME_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4))
else if (!png_memcmp(chunk_name, png_tIME, 4))
png_handle_tIME(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_tRNS_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4))
else if (!png_memcmp(chunk_name, png_tRNS, 4))
png_handle_tRNS(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_zTXt_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4))
else if (!png_memcmp(chunk_name, png_zTXt, 4))
png_handle_zTXt(png_ptr, info_ptr, length);
#endif
#if defined(PNG_READ_iTXt_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4))
else if (!png_memcmp(chunk_name, png_iTXt, 4))
png_handle_iTXt(png_ptr, info_ptr, length);
#endif
else
@ -1288,7 +1276,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
* being used again.
*/
#ifdef PNG_SETJMP_SUPPORTED
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof(jmp_buf));
#endif
error_fn = png_ptr->error_fn;
@ -1298,7 +1286,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
free_fn = png_ptr->free_fn;
#endif
png_memset(png_ptr, 0, png_sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof(png_struct));
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
@ -1308,7 +1296,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
#endif
#ifdef PNG_SETJMP_SUPPORTED
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof(jmp_buf));
#endif
}
@ -1343,7 +1331,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
*/
png_read_info(png_ptr, info_ptr);
if (info_ptr->height > PNG_UINT_32_MAX/png_sizeof(png_bytep))
png_error(png_ptr,"Image is too high to process with png_read_png()");
png_error(png_ptr, "Image is too high to process with png_read_png()");
/* -------------- image transformations start here ------------------- */

7
pngrio.c
View File

@ -1,9 +1,9 @@
/* pngrio.c - functions for data input
*
* Last changed in libpng 1.2.13 November 13, 2006
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2006 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 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.)
*
@ -17,7 +17,6 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED)
/* Read the data from whatever input you are using. The default routine
@ -28,7 +27,7 @@
void /* PRIVATE */
png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_debug1(4,"reading %d bytes\n", (int)length);
png_debug1(4, "reading %d bytes\n", (int)length);
if (png_ptr->read_data_fn != NULL)
(*(png_ptr->read_data_fn))(png_ptr, data, length);
else

64
pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -15,7 +15,6 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED)
/* Set the action on getting a CRC error for an ancillary or critical chunk. */
@ -39,7 +38,8 @@ png_set_crc_action(png_structp png_ptr, int crit_action, int ancil_action)
PNG_FLAG_CRC_CRITICAL_IGNORE;
break;
case PNG_CRC_WARN_DISCARD: /* not a valid action for critical data */
png_warning(png_ptr, "Can't discard critical data on CRC error.");
png_warning(png_ptr,
"Can't discard critical data on CRC error.");
case PNG_CRC_ERROR_QUIT: /* error/quit */
case PNG_CRC_DEFAULT:
default:
@ -151,7 +151,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
int i;
png_ptr->dither_index = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * png_sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof(png_byte)));
for (i = 0; i < num_palette; i++)
png_ptr->dither_index[i] = (png_byte)i;
}
@ -167,7 +167,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
/* initialize an array to sort colors */
png_ptr->dither_sort = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * png_sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof(png_byte)));
/* initialize the dither_sort array */
for (i = 0; i < num_palette; i++)
@ -296,9 +296,9 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
/* initialize palette index arrays */
png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * png_sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof(png_byte)));
png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * png_sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof(png_byte)));
/* initialize the sort array */
for (i = 0; i < num_palette; i++)
@ -308,10 +308,10 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
}
hash = (png_dsortpp)png_malloc(png_ptr, (png_uint_32)(769 *
png_sizeof (png_dsortp)));
png_sizeof(png_dsortp)));
for (i = 0; i < 769; i++)
hash[i] = NULL;
/* png_memset(hash, 0, 769 * png_sizeof (png_dsortp)); */
/* png_memset(hash, 0, 769 * png_sizeof(png_dsortp)); */
num_new_palette = num_palette;
@ -459,10 +459,10 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
png_size_t num_entries = ((png_size_t)1 << total_bits);
png_ptr->palette_lookup = (png_bytep )png_malloc(png_ptr,
(png_uint_32)(num_entries * png_sizeof (png_byte)));
(png_uint_32)(num_entries * png_sizeof(png_byte)));
png_memset(png_ptr->palette_lookup, 0, num_entries *
png_sizeof (png_byte));
png_sizeof(png_byte));
distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries *
png_sizeof(png_byte)));
@ -659,7 +659,8 @@ png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action,
png_ptr->transformations |= PNG_EXPAND;
#else
{
png_warning(png_ptr, "Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED.");
png_warning(png_ptr,
"Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED.");
png_ptr->transformations &= ~PNG_RGB_TO_GRAY;
}
#endif
@ -818,7 +819,7 @@ png_init_read_transformations(png_structp png_ptr)
{
/* invert the alpha channel (in tRNS) unless the pixels are
going to be expanded, in which case leave it for later */
int i,istop;
int i, istop;
istop=(int)png_ptr->num_trans;
for (i=0; i<istop; i++)
png_ptr->trans[i] = (png_byte)(255 - png_ptr->trans[i]);
@ -839,7 +840,7 @@ png_init_read_transformations(png_structp png_ptr)
&& (fabs(png_ptr->screen_gamma * png_ptr->gamma - 1.0)
< PNG_GAMMA_THRESHOLD))
{
int i,k;
int i, k;
k=0;
for (i=0; i<png_ptr->num_trans; i++)
{
@ -1251,7 +1252,7 @@ defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
info_ptr->pixel_depth = (png_byte)(info_ptr->channels *
info_ptr->bit_depth);
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,info_ptr->width);
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, info_ptr->width);
#if !defined(PNG_READ_EXPAND_SUPPORTED)
if(png_ptr)
@ -1273,7 +1274,7 @@ png_do_read_transformations(png_structp png_ptr)
char msg[50];
png_snprintf2(msg, 50,
"NULL row buffer for row %ld, pass %d", png_ptr->row_number,
"NULL row buffer for row %ld, pass %d", (long)png_ptr->row_number,
png_ptr->pass);
png_error(png_ptr, msg);
#else
@ -2202,7 +2203,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
row_info->color_type |= PNG_COLOR_MASK_COLOR;
row_info->pixel_depth = (png_byte)(row_info->channels *
row_info->bit_depth);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
}
}
#endif
@ -2210,8 +2211,11 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
/* reduce RGB files to grayscale, with or without alpha
* using the equation given in Poynton's ColorFAQ at
* <http://www.inforamp.net/~poynton/>
* <http://www.inforamp.net/~poynton/> (THIS LINK IS DEAD June 2008)
* Copyright (c) 1998-01-04 Charles Poynton poynton at inforamp.net
* New links:
* <http://www.poynton.com/notes/colour_and_gamma/>
* Copyright (c) 2006-11-28 Charles Poynton poynton at poynton.com
*
* Y = 0.212671 * R + 0.715160 * G + 0.072169 * B
*
@ -2455,7 +2459,7 @@ png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row)
row_info->color_type &= ~PNG_COLOR_MASK_COLOR;
row_info->pixel_depth = (png_byte)(row_info->channels *
row_info->bit_depth);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
}
return rgb_error;
}
@ -3373,7 +3377,7 @@ png_do_background(png_row_infop row_info, png_bytep row,
row_info->channels--;
row_info->pixel_depth = (png_byte)(row_info->channels *
row_info->bit_depth);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
}
}
}
@ -3911,7 +3915,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
row_info->channels = 4;
row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
}
}
}
@ -3964,7 +3968,7 @@ png_do_dither(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_PALETTE;
row_info->channels = 1;
row_info->pixel_depth = row_info->bit_depth;
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
}
else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA &&
palette_lookup != NULL && row_info->bit_depth == 8)
@ -3993,7 +3997,7 @@ png_do_dither(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_PALETTE;
row_info->channels = 1;
row_info->pixel_depth = row_info->bit_depth;
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
}
else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
dither_lookup && row_info->bit_depth == 8)
@ -4122,7 +4126,7 @@ png_build_gamma_table(png_structp png_ptr)
g = 1.0;
png_ptr->gamma_16_table = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * png_sizeof (png_uint_16p)));
(png_uint_32)(num * png_sizeof(png_uint_16p)));
if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND))
{
@ -4132,7 +4136,7 @@ png_build_gamma_table(png_structp png_ptr)
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * png_sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof(png_uint_16)));
}
g = 1.0 / g;
@ -4162,7 +4166,7 @@ png_build_gamma_table(png_structp png_ptr)
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * png_sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof(png_uint_16)));
ig = (((png_uint_32)i * (png_uint_32)png_gamma_shift[shift]) >> 4);
for (j = 0; j < 256; j++)
@ -4182,12 +4186,12 @@ png_build_gamma_table(png_structp png_ptr)
g = 1.0 / (png_ptr->gamma);
png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * png_sizeof (png_uint_16p )));
(png_uint_32)(num * png_sizeof(png_uint_16p )));
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_to_1[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * png_sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof(png_uint_16)));
ig = (((png_uint_32)i *
(png_uint_32)png_gamma_shift[shift]) >> 4);
@ -4205,12 +4209,12 @@ png_build_gamma_table(png_structp png_ptr)
g = png_ptr->gamma; /* probably doing rgb_to_gray */
png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * png_sizeof (png_uint_16p)));
(png_uint_32)(num * png_sizeof(png_uint_16p)));
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_from_1[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * png_sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof(png_uint_16)));
ig = (((png_uint_32)i *
(png_uint_32)png_gamma_shift[shift]) >> 4);

102
pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -13,7 +13,6 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED)
#if defined(_WIN32_WCE) && (_WIN32_WCE<0x500)
@ -30,7 +29,7 @@ __inline double png_strtod(png_structp png_ptr, PNG_CONST char *nptr, char **end
wchar_t *str, *end;
len = MultiByteToWideChar(CP_ACP, 0, nptr, -1, NULL, 0);
str = (wchar_t *)png_malloc(png_ptr, len * sizeof(wchar_t));
str = (wchar_t *)png_malloc(png_ptr, len * png_sizeof(wchar_t));
if ( NULL != str )
{
MultiByteToWideChar(CP_ACP, 0, nptr, -1, str, len);
@ -49,7 +48,15 @@ __inline double png_strtod(png_structp png_ptr, PNG_CONST char *nptr, char **end
png_uint_32 PNGAPI
png_get_uint_31(png_structp png_ptr, png_bytep buf)
{
#ifdef PNG_READ_BIG_ENDIAN_SUPPORTED
png_uint_32 i = png_get_uint_32(buf);
#else
/* Avoid an extra function call by inlining the result. */
png_uint_32 i = ((png_uint_32)(*buf) << 24) +
((png_uint_32)(*(buf + 1)) << 16) +
((png_uint_32)(*(buf + 2)) << 8) +
(png_uint_32)(*(buf + 3));
#endif
if (i > PNG_UINT_31_MAX)
png_error(png_ptr, "PNG unsigned integer out of range.");
return (i);
@ -92,6 +99,32 @@ png_get_uint_16(png_bytep buf)
}
#endif /* PNG_READ_BIG_ENDIAN_SUPPORTED */
/* Read the chunk header (length + type name).
* Put the type name into png_ptr->chunk_name, and return the length.
*/
png_uint_32 /* PRIVATE */
png_read_chunk_header(png_structp png_ptr)
{
png_byte buf[8];
png_uint_32 length;
/* read the length and the chunk name */
png_read_data(png_ptr, buf, 8);
length = png_get_uint_31(png_ptr, buf);
/* put the chunk name into png_ptr->chunk_name */
png_memcpy(png_ptr->chunk_name, buf + 4, 4);
png_debug2(0, "Reading %s chunk, length = %lu\n",
png_ptr->chunk_name, length);
/* reset the crc and run it over the chunk name */
png_reset_crc(png_ptr);
png_calculate_crc(png_ptr, png_ptr->chunk_name, 4);
return length;
}
/* Read data, and (optionally) run it through the CRC. */
void /* PRIVATE */
png_crc_read(png_structp png_ptr, png_bytep buf, png_size_t length)
@ -218,8 +251,8 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
text = (png_charp)png_malloc_warn(png_ptr, text_size);
if (text == NULL)
{
png_free(png_ptr,chunkdata);
png_error(png_ptr,"Not enough memory to decompress chunk");
png_free(png_ptr, chunkdata);
png_error(png_ptr, "Not enough memory to decompress chunk");
}
png_memcpy(text, chunkdata, prefix_size);
}
@ -242,8 +275,9 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
text = (png_charp)png_malloc_warn(png_ptr, text_size + 1);
if (text == NULL)
{
png_free(png_ptr,chunkdata);
png_error(png_ptr,"Not enough memory to decompress chunk.");
png_free(png_ptr, chunkdata);
png_error(png_ptr,
"Not enough memory to decompress chunk.");
}
png_memcpy(text + prefix_size, png_ptr->zbuf,
text_size - prefix_size);
@ -262,7 +296,8 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
{
png_free(png_ptr, tmp);
png_free(png_ptr, chunkdata);
png_error(png_ptr,"Not enough memory to decompress chunk..");
png_error(png_ptr,
"Not enough memory to decompress chunk..");
}
png_memcpy(text, tmp, text_size);
png_free(png_ptr, tmp);
@ -309,7 +344,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
if (text == NULL)
{
png_free(png_ptr, chunkdata);
png_error(png_ptr,"Not enough memory for text.");
png_error(png_ptr, "Not enough memory for text.");
}
png_memcpy(text, chunkdata, prefix_size);
}
@ -406,10 +441,10 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* set up other useful info */
png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth *
png_ptr->channels);
png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->width);
png_debug1(3,"bit_depth = %d\n", png_ptr->bit_depth);
png_debug1(3,"channels = %d\n", png_ptr->channels);
png_debug1(3,"rowbytes = %lu\n", png_ptr->rowbytes);
png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->width);
png_debug1(3, "bit_depth = %d\n", png_ptr->bit_depth);
png_debug1(3, "channels = %d\n", png_ptr->channels);
png_debug1(3, "rowbytes = %lu\n", png_ptr->rowbytes);
png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
color_type, interlace_type, compression_type, filter_type);
}
@ -571,7 +606,7 @@ png_handle_IEND(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
}
png_crc_finish(png_ptr, length);
info_ptr =info_ptr; /* quiet compiler warnings about unused info_ptr */
info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */
}
#if defined(PNG_READ_gAMA_SUPPORTED)
@ -854,14 +889,14 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
"Ignoring incorrect cHRM value when sRGB is also present");
#ifndef PNG_NO_CONSOLE_IO
#ifdef PNG_FLOATING_POINT_SUPPORTED
fprintf(stderr,"wx=%f, wy=%f, rx=%f, ry=%f\n",
fprintf(stderr, "wx=%f, wy=%f, rx=%f, ry=%f\n",
white_x, white_y, red_x, red_y);
fprintf(stderr,"gx=%f, gy=%f, bx=%f, by=%f\n",
fprintf(stderr, "gx=%f, gy=%f, bx=%f, by=%f\n",
green_x, green_y, blue_x, blue_y);
#else
fprintf(stderr,"wx=%ld, wy=%ld, rx=%ld, ry=%ld\n",
fprintf(stderr, "wx=%ld, wy=%ld, rx=%ld, ry=%ld\n",
int_x_white, int_y_white, int_x_red, int_y_red);
fprintf(stderr,"gx=%ld, gy=%ld, bx=%ld, by=%ld\n",
fprintf(stderr, "gx=%ld, gy=%ld, bx=%ld, by=%ld\n",
int_x_green, int_y_green, int_x_blue, int_y_blue);
#endif
#endif /* PNG_NO_CONSOLE_IO */
@ -949,10 +984,11 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
"Ignoring incorrect gAMA value when sRGB is also present");
#ifndef PNG_NO_CONSOLE_IO
# ifdef PNG_FIXED_POINT_SUPPORTED
fprintf(stderr,"incorrect gamma=(%d/100000)\n",(int)png_ptr->int_gamma);
fprintf(stderr, "incorrect gamma=(%d/100000)\n",
(int)png_ptr->int_gamma);
# else
# ifdef PNG_FLOATING_POINT_SUPPORTED
fprintf(stderr,"incorrect gamma=%f\n",png_ptr->gamma);
fprintf(stderr, "incorrect gamma=%f\n", png_ptr->gamma);
# endif
# endif
#endif
@ -1973,7 +2009,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
there is no hard and fast rule to tell us where to stop. */
if (length > (png_uint_32)65535L)
{
png_warning(png_ptr,"zTXt chunk too large to fit in memory");
png_warning(png_ptr, "zTXt chunk too large to fit in memory");
png_crc_finish(png_ptr, length);
return;
}
@ -1982,7 +2018,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1);
if (chunkdata == NULL)
{
png_warning(png_ptr,"Out of memory processing zTXt chunk.");
png_warning(png_ptr, "Out of memory processing zTXt chunk.");
return;
}
slength = (png_size_t)length;
@ -2024,7 +2060,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
(png_uint_32)png_sizeof(png_text));
if (text_ptr == NULL)
{
png_warning(png_ptr,"Not enough memory to process zTXt chunk.");
png_warning(png_ptr, "Not enough memory to process zTXt chunk.");
png_free(png_ptr, chunkdata);
return;
}
@ -2073,7 +2109,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
there is no hard and fast rule to tell us where to stop. */
if (length > (png_uint_32)65535L)
{
png_warning(png_ptr,"iTXt chunk too large to fit in memory");
png_warning(png_ptr, "iTXt chunk too large to fit in memory");
png_crc_finish(png_ptr, length);
return;
}
@ -2148,7 +2184,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
(png_uint_32)png_sizeof(png_text));
if (text_ptr == NULL)
{
png_warning(png_ptr,"Not enough memory to process iTXt chunk.");
png_warning(png_ptr, "Not enough memory to process iTXt chunk.");
png_free(png_ptr, chunkdata);
return;
}
@ -2298,7 +2334,7 @@ png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name)
void /* PRIVATE */
png_combine_row(png_structp png_ptr, png_bytep row, int mask)
{
png_debug(1,"in png_combine_row\n");
png_debug(1, "in png_combine_row\n");
if (mask == 0xff)
{
png_memcpy(row, png_ptr->row_buf + 1,
@ -2514,7 +2550,7 @@ png_do_read_interlace(png_structp png_ptr)
PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
#endif
png_debug(1,"in png_do_read_interlace\n");
png_debug(1, "in png_do_read_interlace\n");
if (row != NULL && row_info != NULL)
{
png_uint_32 final_width;
@ -2715,7 +2751,7 @@ png_do_read_interlace(png_structp png_ptr)
}
}
row_info->width = final_width;
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, final_width);
}
#if !defined(PNG_READ_PACKSWAP_SUPPORTED)
transformations = transformations; /* silence compiler warning */
@ -2728,7 +2764,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep row,
png_bytep prev_row, int filter)
{
png_debug(1, "in png_read_filter_row\n");
png_debug2(2,"row = %lu, filter = %d\n", png_ptr->row_number, filter);
png_debug2(2, "row = %lu, filter = %d\n", png_ptr->row_number, filter);
switch (filter)
{
case PNG_FILTER_VALUE_NONE:
@ -3019,7 +3055,7 @@ png_read_start_row(png_structp png_ptr)
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
row_bytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->iwidth) + 1;
row_bytes = PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->iwidth) + 1;
png_ptr->irowbytes = (png_size_t)row_bytes;
if((png_uint_32)png_ptr->irowbytes != row_bytes)
@ -3139,7 +3175,7 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7));
/* calculate the maximum bytes needed, adding a byte and a pixel
for safety's sake */
row_bytes = PNG_ROWBYTES(max_pixel_depth,row_bytes) +
row_bytes = PNG_ROWBYTES(max_pixel_depth, row_bytes) +
1 + ((max_pixel_depth + 7) >> 3);
#ifdef PNG_MAX_MALLOC_64K
if (row_bytes > (png_uint_32)65536L)
@ -3148,7 +3184,7 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
if(row_bytes + 64 > png_ptr->old_big_row_buf_size)
{
png_free(png_ptr,png_ptr->big_row_buf);
png_free(png_ptr, png_ptr->big_row_buf);
png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes+64);
png_ptr->row_buf = png_ptr->big_row_buf+32;
png_ptr->old_big_row_buf_size = row_bytes+64;
@ -3163,7 +3199,7 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
if(png_ptr->rowbytes+1 > png_ptr->old_prev_row_size)
{
png_free(png_ptr,png_ptr->prev_row);
png_free(png_ptr, png_ptr->prev_row);
png_ptr->prev_row = (png_bytep)png_malloc(png_ptr, (png_uint_32)(
png_ptr->rowbytes + 1));
png_ptr->old_prev_row_size = png_ptr->rowbytes+1;

25
pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -15,7 +15,6 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
#if defined(PNG_bKGD_SUPPORTED)
@ -238,7 +237,7 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
/* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in version
1.2.1 */
png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr,
(png_uint_32)(PNG_MAX_PALETTE_LENGTH * png_sizeof (png_uint_16)));
(png_uint_32)(PNG_MAX_PALETTE_LENGTH * png_sizeof(png_uint_16)));
if (png_ptr->hist == NULL)
{
png_warning(png_ptr, "Insufficient memory for hIST chunk data.");
@ -320,7 +319,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
* 5. The color_type is RGB or RGBA
*/
if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&png_ptr->mng_features_permitted)
png_warning(png_ptr,"MNG features are not allowed in a PNG datastream");
png_warning(png_ptr, "MNG features are not allowed in a PNG datastream");
if(filter_type != PNG_FILTER_TYPE_BASE)
{
if(!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
@ -363,7 +362,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
- 8) /* extra max_pixel_depth pad */
info_ptr->rowbytes = (png_size_t)0;
else
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,width);
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
}
#if defined(PNG_oFFs_SUPPORTED)
@ -564,7 +563,7 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
PNG_MAX_PALETTE_LENGTH * png_sizeof(png_color));
png_memset(png_ptr->palette, 0, PNG_MAX_PALETTE_LENGTH *
png_sizeof(png_color));
png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof (png_color));
png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof(png_color));
info_ptr->palette = png_ptr->palette;
info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
@ -586,7 +585,7 @@ png_set_sBIT(png_structp png_ptr, png_infop info_ptr,
if (png_ptr == NULL || info_ptr == NULL)
return;
png_memcpy(&(info_ptr->sig_bit), sig_bit, png_sizeof (png_color_8));
png_memcpy(&(info_ptr->sig_bit), sig_bit, png_sizeof(png_color_8));
info_ptr->valid |= PNG_INFO_sBIT;
}
#endif
@ -757,7 +756,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
info_ptr->max_text = info_ptr->num_text + num_text + 8;
old_text = info_ptr->text;
info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)(info_ptr->max_text * png_sizeof (png_text)));
(png_uint_32)(info_ptr->max_text * png_sizeof(png_text)));
if (info_ptr->text == NULL)
{
png_free(png_ptr, old_text);
@ -772,7 +771,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
info_ptr->max_text = num_text + 8;
info_ptr->num_text = 0;
info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)(info_ptr->max_text * png_sizeof (png_text)));
(png_uint_32)(info_ptr->max_text * png_sizeof(png_text)));
if (info_ptr->text == NULL)
return(1);
#ifdef PNG_FREE_ME_SUPPORTED
@ -784,8 +783,8 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
}
for (i = 0; i < num_text; i++)
{
png_size_t text_length,key_len;
png_size_t lang_len,lang_key_len;
png_size_t text_length, key_len;
png_size_t lang_len, lang_key_len;
png_textp textp = &(info_ptr->text[info_ptr->num_text]);
if (text_ptr[i].key == NULL)
@ -900,7 +899,7 @@ png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
(png_ptr->mode & PNG_WROTE_tIME))
return;
png_memcpy(&(info_ptr->mod_time), mod_time, png_sizeof (png_time));
png_memcpy(&(info_ptr->mod_time), mod_time, png_sizeof(png_time));
info_ptr->valid |= PNG_INFO_tIME;
}
#endif
@ -1006,7 +1005,7 @@ png_set_sPLT(png_structp png_ptr,
{
png_warning(png_ptr,
"Out of memory while processing sPLT chunk");
png_free(png_ptr,to->name);
png_free(png_ptr, to->name);
to->name = NULL;
continue;
}

186
pngtest.c
View File

@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.2.27 - [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -37,7 +37,7 @@
# include <windows.h>
# include <stdlib.h>
# define READFILE(file, data, length, check) \
if (ReadFile(file, data, length, &check,NULL)) check = 0
if (ReadFile(file, data, length, &check, NULL)) check = 0
# define WRITEFILE(file, data, length, check)) \
if (WriteFile(file, data, length, &check, NULL)) check = 0
# define FCLOSE(file) CloseHandle(file)
@ -45,9 +45,9 @@
# include <stdio.h>
# include <stdlib.h>
# define READFILE(file, data, length, check) \
check=(png_size_t)fread(data,(png_size_t)1,length,file)
check=(png_size_t)fread(data, (png_size_t)1, length, file)
# define WRITEFILE(file, data, length, check) \
check=(png_size_t)fwrite(data,(png_size_t)1, length, file)
check=(png_size_t)fwrite(data, (png_size_t)1, length, file)
# define FCLOSE(file) fclose(file)
#endif
@ -99,11 +99,6 @@ int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));
/* #define STDERR stderr */
#define STDERR stdout /* for DOS */
/* example of using row callbacks to make a simple progress meter */
static int status_pass=1;
static int status_dots_requested=0;
static int status_dots=1;
/* In case a system header (e.g., on AIX) defined jmpbuf */
#ifdef jmpbuf
# undef jmpbuf
@ -114,6 +109,11 @@ static int status_dots=1;
# define png_jmpbuf(png_ptr) png_ptr->jmpbuf
#endif
/* example of using row callbacks to make a simple progress meter */
static int status_pass=1;
static int status_dots_requested=0;
static int status_dots=1;
void
#ifdef PNG_1_0_X
PNGAPI
@ -128,7 +128,7 @@ read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
if(png_ptr == NULL || row_number > PNG_UINT_31_MAX) return;
if(status_pass != pass)
{
fprintf(stdout,"\n Pass %d: ",pass);
fprintf(stdout, "\n Pass %d: ", pass);
status_pass = pass;
status_dots = 31;
}
@ -511,7 +511,7 @@ png_debug_malloc(png_structp png_ptr, png_uint_32 size)
memory_infop pinfo;
png_set_mem_fn(png_ptr, NULL, NULL, NULL);
pinfo = (memory_infop)png_malloc(png_ptr,
(png_uint_32)png_sizeof (*pinfo));
(png_uint_32)png_sizeof(*pinfo));
pinfo->size = size;
current_allocation += size;
total_allocation += size;
@ -534,7 +534,7 @@ png_debug_malloc(png_structp png_ptr, png_uint_32 size)
/* Make sure the caller isn't assuming zeroed memory. */
png_memset(pinfo->pointer, 0xdd, pinfo->size);
if(verbose)
printf("png_malloc %lu bytes at %x\n",(unsigned long)size,
printf("png_malloc %lu bytes at %x\n", (unsigned long)size,
pinfo->pointer);
return (png_voidp)(pinfo->pointer);
}
@ -584,13 +584,80 @@ png_debug_free(png_structp png_ptr, png_voidp ptr)
/* Finally free the data. */
if(verbose)
printf("Freeing %x\n",ptr);
printf("Freeing %x\n", ptr);
png_free_default(png_ptr, ptr);
ptr=NULL;
}
#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
/* END of code to test memory allocation/deallocation */
/* Demonstration of user chunk support of the sTER and vpAg chunks */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
/* (sTER is a public chunk not yet understood by libpng. vpAg is a private
chunk used in ImageMagick to store "virtual page" size). */
static png_uint_32 user_chunk_data[4];
/* 0: sTER mode + 1
* 1: vpAg width
* 2: vpAg height
* 3: vpAg units
*/
static int read_user_chunk_callback(png_struct *png_ptr,
png_unknown_chunkp chunk)
{
png_uint_32
*user_chunk_data;
/* Return one of the following: */
/* return (-n); chunk had an error */
/* return (0); did not recognize */
/* return (n); success */
/* The unknown chunk structure contains the chunk data:
* png_byte name[5];
* png_byte *data;
* png_size_t size;
*
* Note that libpng has already taken care of the CRC handling.
*/
if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */
chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */
{
/* Found sTER chunk */
if (chunk->size != 1)
return (-1); /* Error return */
if (chunk->data[0] != 0 && chunk->data[0] != 1)
return (-1); /* Invalid mode */
user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);
user_chunk_data[0]=chunk->data[0]+1;
return (1);
}
if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */
chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */
return (0); /* Did not recognize */
/* Found ImageMagick vpAg chunk */
if (chunk->size != 9)
return (-1); /* Error return */
user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);
user_chunk_data[1]=png_get_uint_31(png_ptr, chunk->data);
user_chunk_data[2]=png_get_uint_31(png_ptr, chunk->data + 4);
user_chunk_data[3]=(png_uint_32)chunk->data[8];
return (1);
}
#endif
/* END of code to demonstrate user chunk support */
/* Test one file */
int
test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
@ -660,6 +727,16 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
#endif
png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error,
pngtest_warning);
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
user_chunk_data[0]=0;
user_chunk_data[1]=0;
user_chunk_data[2]=0;
user_chunk_data[3]=0;
png_set_read_user_chunk_fn(read_ptr, user_chunk_data,
read_user_chunk_callback);
#endif
#ifdef PNG_WRITE_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
write_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
@ -700,7 +777,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
return (1);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_jmpbuf(read_ptr),jmpbuf,png_sizeof(jmp_buf));
png_memcpy(png_jmpbuf(read_ptr), jmpbuf, png_sizeof(jmp_buf));
#endif
#ifdef PNG_WRITE_SUPPORTED
@ -722,7 +799,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
return (1);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_jmpbuf(write_ptr),jmpbuf,png_sizeof(jmp_buf));
png_memcpy(png_jmpbuf(write_ptr), jmpbuf, png_sizeof(jmp_buf));
#endif
#endif
#endif
@ -913,7 +990,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_int_32 offset_x, offset_y;
int unit_type;
if (png_get_oFFs(read_ptr, read_info_ptr,&offset_x,&offset_y,&unit_type))
if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y,
&unit_type))
{
png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);
}
@ -1063,6 +1141,40 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_write_info_before_PLTE(write_ptr, write_info_ptr);
*/
png_write_info(write_ptr, write_info_ptr);
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
if (user_chunk_data[0] != 0)
{
png_byte png_sTER[5] = {115, 84, 69, 82, '\0'};
unsigned char
ster_chunk_data[1];
if(verbose)
fprintf(STDERR, "stereo mode = %lu\n",
(unsigned long)(user_chunk_data[0]-1));
ster_chunk_data[0]=(unsigned char)(user_chunk_data[0]-1);
png_write_chunk(write_ptr, png_sTER, ster_chunk_data, 1);
}
if (user_chunk_data[1] != 0 || user_chunk_data[2] != 0)
{
png_byte png_vpAg[5] = {118, 112, 65, 103, '\0'};
unsigned char
vpag_chunk_data[9];
if(verbose)
fprintf(STDERR, "vpAg = %lu x %lu, units=%lu\n",
(unsigned long)user_chunk_data[1],
(unsigned long)user_chunk_data[2],
(unsigned long)user_chunk_data[3]);
png_save_uint_32(vpag_chunk_data, user_chunk_data[1]);
png_save_uint_32(vpag_chunk_data + 4, user_chunk_data[2]);
vpag_chunk_data[8] = (unsigned char)(user_chunk_data[3] & 0xff);
png_write_chunk(write_ptr, png_vpAg, vpag_chunk_data, 9);
}
#endif
#endif
#ifdef SINGLE_ROWBUF_ALLOC
@ -1090,11 +1202,11 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
#endif
for (pass = 0; pass < num_pass; pass++)
{
png_debug1(0, "Writing row data for pass %d\n",pass);
png_debug1(0, "Writing row data for pass %d\n", pass);
for (y = 0; y < height; y++)
{
#ifndef SINGLE_ROWBUF_ALLOC
png_debug2(0, "\nAllocating row buffer (pass %d, y = %ld)...", pass,y);
png_debug2(0, "\nAllocating row buffer (pass %d, y = %ld)...", pass, y);
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
png_debug2(0, "0x%08lx (%ld bytes)\n", (unsigned long)row_buf,
@ -1258,7 +1370,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
{
fprintf(STDERR,
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
inname,PNG_ZBUF_SIZE);
inname, PNG_ZBUF_SIZE);
fprintf(STDERR,
"\n filtering heuristic (libpng default), compression");
fprintf(STDERR,
@ -1281,7 +1393,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
{
fprintf(STDERR,
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
inname,PNG_ZBUF_SIZE);
inname, PNG_ZBUF_SIZE);
fprintf(STDERR,
"\n filtering heuristic (libpng default), compression");
fprintf(STDERR,
@ -1318,15 +1430,15 @@ main(int argc, char *argv[])
fprintf(STDERR, "Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
fprintf(STDERR,"%s",png_get_copyright(NULL));
fprintf(STDERR, "%s", png_get_copyright(NULL));
/* Show the version of libpng used in building the library */
fprintf(STDERR," library (%lu):%s",
fprintf(STDERR, " library (%lu):%s",
(unsigned long)png_access_version_number(),
png_get_header_version(NULL));
/* Show the version of libpng used in building the application */
fprintf(STDERR," pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
PNG_HEADER_VERSION_STRING);
fprintf(STDERR," png_sizeof(png_struct)=%ld, png_sizeof(png_info)=%ld\n",
fprintf(STDERR, " sizeof(png_struct)=%ld, sizeof(png_info)=%ld\n",
(long)png_sizeof(png_struct), (long)png_sizeof(png_info));
/* Do some consistency checking on the memory allocation settings, I'm
@ -1404,7 +1516,7 @@ main(int argc, char *argv[])
int k;
#endif
int kerror;
fprintf(STDERR, "Testing %s:",argv[i]);
fprintf(STDERR, "Testing %s:", argv[i]);
kerror = test_one_file(argv[i], outname);
if (kerror == 0)
{
@ -1418,11 +1530,11 @@ main(int argc, char *argv[])
for (k=0; k<256; k++)
if(filters_used[k])
fprintf(STDERR, " Filter %d was used %lu times\n",
k,(unsigned long)filters_used[k]);
k, (unsigned long)filters_used[k]);
#endif
#if defined(PNG_TIME_RFC1123_SUPPORTED)
if(tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n",tIME_string);
fprintf(STDERR, " tIME = %s\n", tIME_string);
tIME_chunk_present = 0;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
@ -1473,7 +1585,7 @@ main(int argc, char *argv[])
if (i == 1) status_dots_requested = 1;
else if(verbose == 0)status_dots_requested = 0;
if (i == 0 || verbose == 1 || ierror != 0)
fprintf(STDERR, "Testing %s:",inname);
fprintf(STDERR, "Testing %s:", inname);
kerror = test_one_file(inname, outname);
if(kerror == 0)
{
@ -1492,18 +1604,18 @@ main(int argc, char *argv[])
for (k=0; k<256; k++)
if(filters_used[k])
fprintf(STDERR, " Filter %d was used %lu times\n",
k,(unsigned long)filters_used[k]);
k, (unsigned long)filters_used[k]);
#endif
#if defined(PNG_TIME_RFC1123_SUPPORTED)
if(tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n",tIME_string);
fprintf(STDERR, " tIME = %s\n", tIME_string);
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
}
else
{
if(verbose == 0 && i != 2)
fprintf(STDERR, "Testing %s:",inname);
fprintf(STDERR, "Testing %s:", inname);
fprintf(STDERR, " FAIL\n");
ierror += kerror;
}
@ -1519,7 +1631,7 @@ main(int argc, char *argv[])
current_allocation);
while (pinfo != NULL)
{
fprintf(STDERR," %lu bytes at %x\n",
fprintf(STDERR, " %lu bytes at %x\n",
(unsigned long)pinfo->size, (unsigned int)pinfo->pointer);
pinfo = pinfo->next;
}
@ -1542,13 +1654,13 @@ main(int argc, char *argv[])
t_stop = (float)clock();
t_misc += (t_stop - t_start);
t_start = t_stop;
fprintf(STDERR," CPU time used = %.3f seconds",
fprintf(STDERR, " CPU time used = %.3f seconds",
(t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
fprintf(STDERR," (decoding %.3f,\n",
fprintf(STDERR, " (decoding %.3f,\n",
t_decode/(float)CLOCKS_PER_SEC);
fprintf(STDERR," encoding %.3f ,",
fprintf(STDERR, " encoding %.3f ,",
t_encode/(float)CLOCKS_PER_SEC);
fprintf(STDERR," other %.3f seconds)\n\n",
fprintf(STDERR, " other %.3f seconds)\n\n",
t_misc/(float)CLOCKS_PER_SEC);
#endif
@ -1560,4 +1672,4 @@ main(int argc, char *argv[])
}
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_2_30beta02 your_png_h_is_not_version_1_2_30beta02;
typedef version_1_2_30beta03 your_png_h_is_not_version_1_2_30beta03;

8
pngtrans.c
View File

@ -1,17 +1,17 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* Last changed in libpng 1.2.17 May 15, 2007
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2007 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 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.)
*/
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
/* turn on BGR-to-RGB mapping */
void PNGAPI
@ -652,8 +652,8 @@ png_set_user_transform_info(png_structp png_ptr, png_voidp
png_voidp PNGAPI
png_get_user_transform_ptr(png_structp png_ptr)
{
#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
if (png_ptr == NULL) return (NULL);
#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
return ((png_voidp)png_ptr->user_transform_ptr);
#else
return (NULL);

12
pngwio.c
View File

@ -1,9 +1,9 @@
/* pngwio.c - functions for data output
*
* Last changed in libpng 1.2.13 November 13, 2006
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2006 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 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.)
*
@ -206,7 +206,7 @@ png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
#if defined(USE_FAR_KEYWORD)
#if defined(_MSC_VER)
void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check)
void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
{
void *near_ptr;
void FAR *far_ptr;
@ -214,11 +214,11 @@ void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check)
far_ptr = (void FAR *)near_ptr;
if(check != 0)
if(FP_SEG(ptr) != FP_SEG(far_ptr))
png_error(png_ptr,"segment lost in conversion");
png_error(png_ptr, "segment lost in conversion");
return(near_ptr);
}
# else
void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check)
void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
{
void *near_ptr;
void FAR *far_ptr;
@ -226,7 +226,7 @@ void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check)
far_ptr = (void FAR *)near_ptr;
if(check != 0)
if(far_ptr != ptr)
png_error(png_ptr,"segment lost in conversion");
png_error(png_ptr, "segment lost in conversion");
return(near_ptr);
}
# endif

30
pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -34,7 +34,7 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_MNG_FEATURES_SUPPORTED)
if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted))
{
png_warning(png_ptr,"MNG features are not allowed in a PNG datastream");
png_warning(png_ptr, "MNG features are not allowed in a PNG datastream");
png_ptr->mng_features_permitted=0;
}
#endif
@ -393,6 +393,12 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
/* write end of PNG file */
png_write_IEND(png_ptr);
/* This flush, added in libpng-1.0.8, removed from libpng-1.0.9beta03,
* and restored again in libpng-1.2.30, may cause some applications that
* do not set png_ptr->output_flush_fn to crash. If your application
* experiences this problem, please report the event to
* png-mng-implement at lists.sf.net .
*/
png_flush(png_ptr);
}
@ -476,7 +482,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
return (NULL);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf, jmpbuf, png_sizeof(jmp_buf));
#endif
#endif
@ -548,7 +554,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
PNG_ABORT();
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf, jmpbuf, png_sizeof(jmp_buf));
#else
if (setjmp(png_ptr->jmpbuf))
PNG_ABORT();
@ -639,7 +645,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#else
png_ptr->warning_fn=NULL;
png_warning(png_ptr,
"Application uses deprecated png_write_init() and should be recompiled.");
"Application uses deprecated png_write_init() and should be recompiled.");
break;
#endif
}
@ -649,7 +655,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof(jmp_buf));
#endif
if (png_sizeof(png_struct) > png_struct_size)
@ -660,7 +666,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
}
/* reset all variables to 0 */
png_memset(png_ptr, 0, png_sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof(png_struct));
/* added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
@ -670,7 +676,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* restore jump buffer */
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof(jmp_buf));
#endif
png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL,
@ -1077,7 +1083,7 @@ png_write_destroy(png_structp png_ptr)
/* free our memory. png_free checks NULL for us. */
png_free(png_ptr, png_ptr->zbuf);
png_free(png_ptr, png_ptr->row_buf);
#ifndef PNG_NO_WRITE_FILTERING
#ifndef PNG_NO_WRITE_FILTER
png_free(png_ptr, png_ptr->prev_row);
png_free(png_ptr, png_ptr->sub_row);
png_free(png_ptr, png_ptr->up_row);
@ -1099,7 +1105,7 @@ png_write_destroy(png_structp png_ptr)
#ifdef PNG_SETJMP_SUPPORTED
/* reset structure */
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof(jmp_buf));
#endif
error_fn = png_ptr->error_fn;
@ -1109,7 +1115,7 @@ png_write_destroy(png_structp png_ptr)
free_fn = png_ptr->free_fn;
#endif
png_memset(png_ptr, 0, png_sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof(png_struct));
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
@ -1119,7 +1125,7 @@ png_write_destroy(png_structp png_ptr)
#endif
#ifdef PNG_SETJMP_SUPPORTED
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof(jmp_buf));
#endif
}

156
pngwutil.c
View File

@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.2.27 [April 29, 2008]
* Last changed in libpng 1.2.30 [July 6, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -49,6 +49,24 @@ png_save_uint_16(png_bytep buf, unsigned int i)
buf[1] = (png_byte)(i & 0xff);
}
/* Simple function to write the signature. If we have already written
* the magic bytes of the signature, or more likely, the PNG stream is
* being embedded into another stream and doesn't need its own signature,
* we should call png_set_sig_bytes() to tell libpng how many of the
* bytes have already been written.
*/
void /* PRIVATE */
png_write_sig(png_structp png_ptr)
{
png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
/* write the rest of the 8 byte signature */
png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes],
(png_size_t)(8 - png_ptr->sig_bytes));
if(png_ptr->sig_bytes < 3)
png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
}
/* Write a PNG chunk all at once. The type is an array of ASCII characters
* representing the chunk name. The array must be at least 4 bytes in
* length, and does not need to be null terminated. To be safe, pass the
@ -76,16 +94,18 @@ void PNGAPI
png_write_chunk_start(png_structp png_ptr, png_bytep chunk_name,
png_uint_32 length)
{
png_byte buf[4];
png_debug2(0, "Writing %s chunk (%lu bytes)\n", chunk_name, length);
png_byte buf[8];
png_debug2(0, "Writing %s chunk, length = %lu\n", chunk_name,
(unsigned long)length);
if(png_ptr == NULL) return;
/* write the length */
/* write the length and the chunk name */
png_save_uint_32(buf, length);
png_write_data(png_ptr, buf, (png_size_t)4);
/* write the chunk name */
png_write_data(png_ptr, chunk_name, (png_size_t)4);
png_memcpy(buf + 4, chunk_name, 4);
png_write_data(png_ptr, buf, 8);
/* put the chunk name into png_ptr->chunk_name */
png_memcpy(png_ptr->chunk_name, chunk_name, 4);
/* reset the crc and run it over the chunk name */
png_reset_crc(png_ptr);
png_calculate_crc(png_ptr, chunk_name, (png_size_t)4);
@ -103,6 +123,9 @@ png_write_chunk_data(png_structp png_ptr, png_bytep data, png_size_t length)
if(png_ptr == NULL) return;
if (data != NULL && length > 0)
{
/* update the CRC after writing the data,
* in case that the user I/O routine alters it.
*/
png_calculate_crc(png_ptr, data, length);
png_write_data(png_ptr, data, length);
}
@ -116,29 +139,12 @@ png_write_chunk_end(png_structp png_ptr)
if(png_ptr == NULL) return;
/* write the crc */
/* write the crc in a single operation */
png_save_uint_32(buf, png_ptr->crc);
png_write_data(png_ptr, buf, (png_size_t)4);
}
/* Simple function to write the signature. If we have already written
* the magic bytes of the signature, or more likely, the PNG stream is
* being embedded into another stream and doesn't need its own signature,
* we should call png_set_sig_bytes() to tell libpng how many of the
* bytes have already been written.
*/
void /* PRIVATE */
png_write_sig(png_structp png_ptr)
{
png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
/* write the rest of the 8 byte signature */
png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes],
(png_size_t)8 - png_ptr->sig_bytes);
if(png_ptr->sig_bytes < 3)
png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
}
#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_iCCP_SUPPORTED)
/*
* This pair of functions encapsulates the operation of (a) compressing a
@ -240,15 +246,15 @@ png_text_compress(png_structp png_ptr,
old_ptr = comp->output_ptr;
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charpp)));
png_sizeof(png_charpp)));
png_memcpy(comp->output_ptr, old_ptr, old_max
* png_sizeof (png_charp));
* png_sizeof(png_charp));
png_free(png_ptr, old_ptr);
}
else
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charp)));
png_sizeof(png_charp)));
}
/* save the data */
@ -291,15 +297,15 @@ png_text_compress(png_structp png_ptr,
/* This could be optimized to realloc() */
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charpp)));
png_sizeof(png_charpp)));
png_memcpy(comp->output_ptr, old_ptr,
old_max * png_sizeof (png_charp));
old_max * png_sizeof(png_charp));
png_free(png_ptr, old_ptr);
}
else
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charp)));
png_sizeof(png_charp)));
}
/* save off the data */
@ -349,7 +355,7 @@ png_write_compressed_data_out(png_structp png_ptr, compression_state *comp)
/* write saved output buffers, if any */
for (i = 0; i < comp->num_output_ptr; i++)
{
png_write_chunk_data(png_ptr,(png_bytep)comp->output_ptr[i],
png_write_chunk_data(png_ptr, (png_bytep)comp->output_ptr[i],
png_ptr->zbuf_size);
png_free(png_ptr, comp->output_ptr[i]);
comp->output_ptr[i]=NULL;
@ -396,7 +402,7 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
case 4:
case 8:
case 16: png_ptr->channels = 1; break;
default: png_error(png_ptr,"Invalid bit depth for grayscale image");
default: png_error(png_ptr, "Invalid bit depth for grayscale image");
}
break;
case PNG_COLOR_TYPE_RGB:
@ -843,45 +849,45 @@ png_write_sPLT(png_structp png_ptr, png_sPLT_tp spalette)
#ifndef PNG_NO_POINTER_INDEXING
for (ep = spalette->entries; ep<spalette->entries+spalette->nentries; ep++)
{
if (spalette->depth == 8)
{
entrybuf[0] = (png_byte)ep->red;
entrybuf[1] = (png_byte)ep->green;
entrybuf[2] = (png_byte)ep->blue;
entrybuf[3] = (png_byte)ep->alpha;
png_save_uint_16(entrybuf + 4, ep->frequency);
}
else
{
png_save_uint_16(entrybuf + 0, ep->red);
png_save_uint_16(entrybuf + 2, ep->green);
png_save_uint_16(entrybuf + 4, ep->blue);
png_save_uint_16(entrybuf + 6, ep->alpha);
png_save_uint_16(entrybuf + 8, ep->frequency);
}
png_write_chunk_data(png_ptr, entrybuf, (png_size_t)entry_size);
if (spalette->depth == 8)
{
entrybuf[0] = (png_byte)ep->red;
entrybuf[1] = (png_byte)ep->green;
entrybuf[2] = (png_byte)ep->blue;
entrybuf[3] = (png_byte)ep->alpha;
png_save_uint_16(entrybuf + 4, ep->frequency);
}
else
{
png_save_uint_16(entrybuf + 0, ep->red);
png_save_uint_16(entrybuf + 2, ep->green);
png_save_uint_16(entrybuf + 4, ep->blue);
png_save_uint_16(entrybuf + 6, ep->alpha);
png_save_uint_16(entrybuf + 8, ep->frequency);
}
png_write_chunk_data(png_ptr, entrybuf, (png_size_t)entry_size);
}
#else
ep=spalette->entries;
for (i=0; i>spalette->nentries; i++)
{
if (spalette->depth == 8)
{
entrybuf[0] = (png_byte)ep[i].red;
entrybuf[1] = (png_byte)ep[i].green;
entrybuf[2] = (png_byte)ep[i].blue;
entrybuf[3] = (png_byte)ep[i].alpha;
png_save_uint_16(entrybuf + 4, ep[i].frequency);
}
else
{
png_save_uint_16(entrybuf + 0, ep[i].red);
png_save_uint_16(entrybuf + 2, ep[i].green);
png_save_uint_16(entrybuf + 4, ep[i].blue);
png_save_uint_16(entrybuf + 6, ep[i].alpha);
png_save_uint_16(entrybuf + 8, ep[i].frequency);
}
png_write_chunk_data(png_ptr, entrybuf, entry_size);
if (spalette->depth == 8)
{
entrybuf[0] = (png_byte)ep[i].red;
entrybuf[1] = (png_byte)ep[i].green;
entrybuf[2] = (png_byte)ep[i].blue;
entrybuf[3] = (png_byte)ep[i].alpha;
png_save_uint_16(entrybuf + 4, ep[i].frequency);
}
else
{
png_save_uint_16(entrybuf + 0, ep[i].red);
png_save_uint_16(entrybuf + 2, ep[i].green);
png_save_uint_16(entrybuf + 4, ep[i].blue);
png_save_uint_16(entrybuf + 6, ep[i].alpha);
png_save_uint_16(entrybuf + 8, ep[i].frequency);
}
png_write_chunk_data(png_ptr, entrybuf, entry_size);
}
#endif
@ -967,7 +973,7 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y,
{
png_warning(png_ptr, "Invalid cHRM white point specified");
#if !defined(PNG_NO_CONSOLE_IO)
fprintf(stderr,"white_x=%f, white_y=%f\n",white_x, white_y);
fprintf(stderr, "white_x=%f, white_y=%f\n", white_x, white_y);
#endif
return;
}
@ -1027,7 +1033,7 @@ png_write_cHRM_fixed(png_structp png_ptr, png_fixed_point white_x,
{
png_warning(png_ptr, "Invalid fixed cHRM white point specified");
#if !defined(PNG_NO_CONSOLE_IO)
fprintf(stderr,"white_x=%ld, white_y=%ld\n",white_x, white_y);
fprintf(stderr, "white_x=%ld, white_y=%ld\n", white_x, white_y);
#endif
return;
}
@ -1079,7 +1085,7 @@ png_write_tRNS(png_structp png_ptr, png_bytep trans, png_color_16p tran,
{
if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette)
{
png_warning(png_ptr,"Invalid number of transparent colors specified");
png_warning(png_ptr, "Invalid number of transparent colors specified");
return;
}
/* write the chunk out as it is */
@ -1758,13 +1764,13 @@ png_write_start_row(png_structp png_ptr)
png_debug(1, "in png_write_start_row\n");
buf_size = (png_size_t)(PNG_ROWBYTES(
png_ptr->usr_channels*png_ptr->usr_bit_depth,png_ptr->width)+1);
png_ptr->usr_channels*png_ptr->usr_bit_depth, png_ptr->width)+1);
/* set up row buffer */
png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, (png_uint_32)buf_size);
png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE;
#ifndef PNG_NO_WRITE_FILTERING
#ifndef PNG_NO_WRITE_FILTER
/* set up filtering buffer, if using this filter */
if (png_ptr->do_filter & PNG_FILTER_SUB)
{
@ -1800,7 +1806,7 @@ png_write_start_row(png_structp png_ptr)
(png_ptr->rowbytes + 1));
png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH;
}
#endif /* PNG_NO_WRITE_FILTERING */
#endif /* PNG_NO_WRITE_FILTER */
}
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
@ -1899,7 +1905,7 @@ png_write_finish_row(png_structp png_ptr)
if (png_ptr->prev_row != NULL)
png_memset(png_ptr->prev_row, 0,
(png_size_t)(PNG_ROWBYTES(png_ptr->usr_channels*
png_ptr->usr_bit_depth,png_ptr->width))+1);
png_ptr->usr_bit_depth, png_ptr->width))+1);
return;
}
}

2
scripts/CMakeLists.txt
View File

@ -169,7 +169,7 @@ configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
# SET UP LINKS
set_target_properties(${PNG_LIB_NAME} PROPERTIES
# VERSION 0.${PNGLIB_RELEASE}.1.2.30beta02
# VERSION 0.${PNGLIB_RELEASE}.1.2.30beta03
VERSION 0.${PNGLIB_RELEASE}.0
SOVERSION 0
CLEAN_DIRECT_OUTPUT 1)

2
scripts/libpng-config-head.in
View File

@ -8,7 +8,7 @@
# Modeled after libxml-config.
version=1.2.30beta02
version=1.2.30beta03
prefix=""
libdir=""
libs=""

2
scripts/libpng.pc.in
View File

@ -5,6 +5,6 @@ includedir=@includedir@/libpng12
Name: libpng
Description: Loads and saves PNG files
Version: 1.2.30beta02
Version: 1.2.30beta03
Libs: -L${libdir} -lpng12
Cflags: -I${includedir}

2
scripts/makefile.32sunu
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME=libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.64sunu
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME=libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.aix
View File

@ -20,7 +20,7 @@ LN_SF = ln -f -s
LIBNAME=libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local

2
scripts/makefile.beos
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME=libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.cygwin
View File

@ -74,7 +74,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng12
PNGMAJ = 0
CYGDLL = 12
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(CYGDLL).dll

4
scripts/makefile.darwin
View File

@ -18,8 +18,8 @@ ZLIBINC=../zlib
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMAJ = 12
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.dec
View File

@ -5,7 +5,7 @@
# Library name:
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12

2
scripts/makefile.elf
View File

@ -12,7 +12,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.gcmmx
View File

@ -14,7 +14,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.hp64
View File

@ -18,7 +18,7 @@ ZLIBINC=/opt/zlib/include
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.hpgcc
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.hpux
View File

@ -18,7 +18,7 @@ ZLIBINC=/opt/zlib/include
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.linux
View File

@ -6,7 +6,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.mingw
View File

@ -74,7 +74,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng12
PNGMAJ = 0
MINGDLL = 12
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=libpng$(MINGDLL).dll

2
scripts/makefile.ne12bsd
View File

@ -14,7 +14,7 @@ INCSDIR=${LOCALBASE}/include/libpng12
LIB= png12
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.2.30beta02
SHLIB_MINOR= 1.2.30beta03
SRCS= 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

2
scripts/makefile.netbsd
View File

@ -14,7 +14,7 @@ INCSDIR=${LOCALBASE}/include/libpng
LIB= png
SHLIB_MAJOR= 3
SHLIB_MINOR= 1.2.30beta02
SHLIB_MINOR= 1.2.30beta03
SRCS= 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

2
scripts/makefile.nommx
View File

@ -7,7 +7,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.openbsd
View File

@ -8,7 +8,7 @@ LIBDIR= ${PREFIX}/lib
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.2.30beta02
SHLIB_MINOR= 1.2.30beta03
LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \

2
scripts/makefile.sco
View File

@ -9,7 +9,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.sggcc
View File

@ -6,7 +6,7 @@
# Library name:
LIBNAME=libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.sgi
View File

@ -6,7 +6,7 @@
# Library name:
LIBNAME=libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.so9
View File

@ -8,7 +8,7 @@
# Library name:
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12

2
scripts/makefile.solaris
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.solaris-x86
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.30beta02
PNGMIN = 1.2.30beta03
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/pngos2.def
View File

@ -2,7 +2,7 @@
; PNG.LIB module definition file for OS/2
;----------------------------------------
; Version 1.2.30beta02
; Version 1.2.30beta03
LIBRARY PNG
DESCRIPTION "PNG image compression library for OS/2"

2
scripts/pngw32.def
View File

@ -5,7 +5,7 @@
LIBRARY
EXPORTS
;Version 1.2.30beta02
;Version 1.2.30beta03
png_build_grayscale_palette @1
png_check_sig @2
png_chunk_error @3