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[libpng10] Imported from libpng-1.0.44.tar

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This commit is contained in:
Glenn Randers-Pehrson 2009-05-07 11:04:18 -05:00
parent bceda5f9d6
commit 4fa097d58b
58 changed files with 481 additions and 1260 deletions
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61
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.0.43 - February 14, 2009
Libpng 1.0.44 - May 7, 2009
This is a public release of libpng, intended for use in production codes.
@ -8,44 +8,63 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
libpng-1.0.43.tar.gz
libpng-1.0.43.tar.lzma
libpng-1.0.44.tar.gz
libpng-1.0.44.tar.lzma
(Get the lzma codec from <http://tukaani.org/lzma>).
libpng-1.0.43.tar.bz2
libpng-1.0.44.tar.bz2
Source files with LF line endings (for Unix/Linux) without the
"configure" script
libpng-1.0.43-no-config.tar.gz
libpng-1.0.43-no-config.tar.lzma
libpng-1.0.43-no-config.tar.bz2
libpng-1.0.44-no-config.tar.gz
libpng-1.0.44-no-config.tar.lzma
libpng-1.0.44-no-config.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lpng1043.zip
lpng1043.7z
lpng1043.tar.bz2
lpng1044.zip
lpng1044.7z
lpng1044.tar.bz2
Project files
libpng-1.0.43-project-netware.zip
libpng-1.0.43-project-wince.zip
libpng-1.0.44-project-netware.zip
libpng-1.0.44-project-wince.zip
Other information:
libpng-1.0.43-README.txt
libpng-1.0.43-KNOWNBUGS.txt
libpng-1.0.43-LICENSE.txt
libpng-1.0.43-Y2K-compliance.txt
libpng-1.0.44-README.txt
libpng-1.0.44-KNOWNBUGS.txt
libpng-1.0.44-LICENSE.txt
libpng-1.0.44-Y2K-compliance.txt
Changes since the last public release (1.0.42):
Changes since the last public release (1.0.43):
version 1.0.43 [February 14, 2009]
version 1.0.44 [May 7, 2009]
Zero out all arrays of pointers after png_malloc(). (Tavis Ormandy)
Use png_memset() instead of a loop to intialize pointers. We realize
this will not work on platforms where the NULL pointer is not all zeroes.
Revised comments in png_set_read_fn() and png_set_write_fn().
Revised order of #ifdef's and indentation in png_debug definitions of png.h
bug introduced in libpng-1.2.34.
Use png_memset() after png_malloc() of big_row_buf when reading an
interlaced file, to avoid a possible UMR.
Undid recent revision of PNG_NO_STDIO version of png_write_flush(). Users
having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined.
Revised libpng*.txt documentation about use of png_write_flush().
Removed fflush() from pngtest.c.
Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
Relocated misplaced PNG_1_0_X define in png.h that caused the prototype
for png_set_strip_error_numbers() to be omitted from PNG_NO_ASSEMBLER_CODE
builds. This bug was introduced in libpng-1.2.15beta4.
Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
application code writers to bypass the check for multiple inclusion
of setjmp.h when they know that it is safe to ignore the situation.
Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
"shadowed declaration" warning from gcc-4.3.3.
Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
warning about a global "gamma" variable in math.h on some platforms.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

49
CHANGES
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@ -1,4 +1,4 @@
/*
CHANGES - changes for libpng
version 0.2
@ -2175,7 +2175,7 @@ version 1.2.30beta03 [July 6, 2008]
version 1.2.30beta04 [July 10, 2008]
Merged more cosmetic whitespace changes from libpng-1.4.0beta19.
version 1.0.38rc01, 1.2.30rc01 [February 14, 2009]
version 1.0.38rc01, 1.2.30rc01 [July 18, 2008]
No changes.
version 1.0.38rc02, 1.2.30rc02 [July 21, 2008]
@ -2299,7 +2299,7 @@ version 1.0.42, 1.2.34 [December 18, 2008]
version 1.2.35beta01 [February 4, 2009]
Zero out some arrays of pointers after png_malloc(). (Tavis Ormandy)
version 1.2.35beta02 [Feburary 4, 2009]
version 1.2.35beta02 [February 4, 2009]
Zero out more arrays of pointers after png_malloc().
version 1.2.35beta03 [February 5, 2009]
@ -2312,9 +2312,51 @@ version 1.2.35rc01 [February 11, 2009]
version 1.2.35rc02 [February 12, 2009]
Fix typo in new png_memset call in pngset.c (png_color should be png_charp)
version 1.2.35 [February 14, 2009]
No changes.
version 1.0.43 and 1.2.35 [February 14, 2009]
No changes.
version 1.2.36beta01 [February 28, 2009]
Revised comments in png_set_read_fn() and png_set_write_fn().
Revised order of #ifdef's and indentation in png_debug definitions of png.h
bug introduced in libpng-1.2.34.
version 1.2.36beta02 [March 21, 2009]
Use png_memset() after png_malloc() of big_row_buf when reading an
interlaced file, to avoid a possible UMR.
Undid recent revision of PNG_NO_STDIO version of png_write_flush(). Users
having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined.
Revised libpng*.txt documentation about use of png_write_flush().
Removed fflush() from pngtest.c.
Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
version 1.2.36beta03 [March 27, 2009]
Relocated misplaced PNG_1_0_X define in png.h that caused the prototype
for png_set_strip_error_numbers() to be omitted from PNG_NO_ASSEMBLER_CODE
builds. This bug was introduced in libpng-1.2.15beta4.
Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
version 1.2.36beta04 [April 5, 2009]
Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
version 1.2.36beta05 [April 24, 2009]
Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
application code writers to bypass the check for multiple inclusion
of setjmp.h when they know that it is safe to ignore the situation.
Made some cosmetic changes to whitespace in pngtest output.
Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
"shadowed declaration" warning from gcc-4.3.3.
Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
warning about a global "gamma" variable in math.h on some platforms.
version 1.2.36rc01 [April 30, 2009]
No changes.
version 1.0.44 and 1.2.36 [May 7, 2009]
No changes.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
@ -2322,3 +2364,4 @@ to subscribe)
or to glennrp at users.sourceforge.net
Glenn R-P
*/

16
INSTALL
View File

@ -1,5 +1,5 @@
Installing libpng version 1.0.43 - February 14, 2009
Installing libpng version 1.0.44 - May 7, 2009
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-1.0.43" or "lpng109" and "zlib-1.2.1"
might be called "libpng-1.0.44" 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 libpng10.so.0.1.0.43)
gcc, creates libpng10.so.0.1.0.44)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng10.so.0.1.0.43)
(gcc, creates libpng10.so.0.1.0.44)
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 libpng10.so.0.1.0.43)
creates libpng10.so.0.1.0.44)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc,
creates libpng10.so.0.1.0.43)
creates libpng10.so.0.1.0.44)
makefile.solaris-x86 => Solaris/intelMMX 2.X makefile (gcc,
creates libpng10.so.0.1.0.43)
creates libpng10.so.0.1.0.44)
makefile.so9 => Solaris 9 makefile (gcc,
creates libpng10.so.0.1.0.43)
creates libpng10.so.0.1.0.44)
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 1.0.43
Known bugs in libpng version 1.0.44
1. February 23, 2006: The custom makefiles don't build libpng with -lz.

6
LICENSE
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@ -8,8 +8,8 @@ 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 1.0.43, February 14, 2009, are
Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
libpng versions 1.2.6, August 15, 2004, through 1.0.44, May 7, 2009, are
Copyright (c) 2004, 2006-2009 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
February 14, 2009
May 7, 2009

2
Makefile.am
View File

@ -86,7 +86,7 @@ EXTRA_DIST= \
${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \
$(TESTS) \
example.c libpng-1.0.43.txt pngvcrd.c
example.c libpng-1.0.44.txt pngvcrd.c
CLEANFILES= pngout.png libpng10.pc libpng10-config libpng.vers \
libpng.sym

52
Makefile.in
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@ -1,4 +1,4 @@
# Makefile.in generated by automake 1.10.1 from Makefile.am.
# Makefile.in generated by automake 1.10.2 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
@ -18,7 +18,7 @@
# Source file for Makefile.in (and hence Makefile)
#
# Makefile.am need only be changed on a major version number
# change (e.g. libpng10 --> libpng13). In that case seach
# change (e.g. libpng12 --> libpng13). In that case seach
# this file for every instance of the old base name (libpng10)
# and change to the new one (libpng13), then change the
# -version-number settings below so that the new values have
@ -193,6 +193,8 @@ MKDIR_P = @MKDIR_P@
NM = @NM@
NMEDIT = @NMEDIT@
OBJDUMP = @OBJDUMP@
OTOOL = @OTOOL@
OTOOL64 = @OTOOL64@
OBJEXT = @OBJEXT@
PACKAGE = @PACKAGE@
PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
@ -331,7 +333,7 @@ EXTRA_DIST = \
${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \
$(TESTS) \
example.c libpng-1.0.43.txt pngvcrd.c
example.c libpng-1.0.44.txt pngvcrd.c
CLEANFILES = pngout.png libpng10.pc libpng10-config libpng.vers \
libpng.sym
@ -735,7 +737,7 @@ clean-libtool:
-rm -rf .libs _libs
distclean-libtool:
-rm -f libtool
-rm -f libtool config.lt
install-man3: $(man3_MANS) $(man_MANS)
@$(NORMAL_INSTALL)
test -z "$(man3dir)" || $(MKDIR_P) "$(DESTDIR)$(man3dir)"
@ -747,8 +749,8 @@ install-man3: $(man3_MANS) $(man_MANS)
esac; \
done; \
for i in $$list; do \
if test -f $(srcdir)/$$i; then file=$(srcdir)/$$i; \
else file=$$i; fi; \
if test -f $$i; then file=$$i; \
else file=$(srcdir)/$$i; fi; \
ext=`echo $$i | sed -e 's/^.*\\.//'`; \
case "$$ext" in \
3*) ;; \
@ -792,8 +794,8 @@ install-man5: $(man5_MANS) $(man_MANS)
esac; \
done; \
for i in $$list; do \
if test -f $(srcdir)/$$i; then file=$(srcdir)/$$i; \
else file=$$i; fi; \
if test -f $$i; then file=$$i; \
else file=$(srcdir)/$$i; fi; \
ext=`echo $$i | sed -e 's/^.*\\.//'`; \
case "$$ext" in \
5*) ;; \
@ -866,7 +868,7 @@ ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
unique=`for i in $$list; do \
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
done | \
$(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
END { if (nonempty) { for (i in files) print i; }; }'`; \
mkid -fID $$unique
tags: TAGS
@ -909,7 +911,7 @@ distclean-tags:
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
check-TESTS: $(TESTS)
@failed=0; all=0; xfail=0; xpass=0; skip=0; ws='[ ]'; \
@failed=0; all=0; xfail=0; xpass=0; skip=0; \
srcdir=$(srcdir); export srcdir; \
list=' $(TESTS) '; \
if test -n "$$list"; then \
@ -920,7 +922,7 @@ check-TESTS: $(TESTS)
if $(TESTS_ENVIRONMENT) $${dir}$$tst; then \
all=`expr $$all + 1`; \
case " $(XFAIL_TESTS) " in \
*$$ws$$tst$$ws*) \
*[\ \ ]$$tst[\ \ ]*) \
xpass=`expr $$xpass + 1`; \
failed=`expr $$failed + 1`; \
echo "XPASS: $$tst"; \
@ -932,7 +934,7 @@ check-TESTS: $(TESTS)
elif test $$? -ne 77; then \
all=`expr $$all + 1`; \
case " $(XFAIL_TESTS) " in \
*$$ws$$tst$$ws*) \
*[\ \ ]$$tst[\ \ ]*) \
xfail=`expr $$xfail + 1`; \
echo "XFAIL: $$tst"; \
;; \
@ -946,23 +948,36 @@ check-TESTS: $(TESTS)
echo "SKIP: $$tst"; \
fi; \
done; \
if test "$$all" -eq 1; then \
tests="test"; \
All=""; \
else \
tests="tests"; \
All="All "; \
fi; \
if test "$$failed" -eq 0; then \
if test "$$xfail" -eq 0; then \
banner="All $$all tests passed"; \
banner="$$All$$all $$tests passed"; \
else \
banner="All $$all tests behaved as expected ($$xfail expected failures)"; \
if test "$$xfail" -eq 1; then failures=failure; else failures=failures; fi; \
banner="$$All$$all $$tests behaved as expected ($$xfail expected $$failures)"; \
fi; \
else \
if test "$$xpass" -eq 0; then \
banner="$$failed of $$all tests failed"; \
banner="$$failed of $$all $$tests failed"; \
else \
banner="$$failed of $$all tests did not behave as expected ($$xpass unexpected passes)"; \
if test "$$xpass" -eq 1; then passes=pass; else passes=passes; fi; \
banner="$$failed of $$all $$tests did not behave as expected ($$xpass unexpected $$passes)"; \
fi; \
fi; \
dashes="$$banner"; \
skipped=""; \
if test "$$skip" -ne 0; then \
skipped="($$skip tests were not run)"; \
if test "$$skip" -eq 1; then \
skipped="($$skip test was not run)"; \
else \
skipped="($$skip tests were not run)"; \
fi; \
test `echo "$$skipped" | wc -c` -le `echo "$$banner" | wc -c` || \
dashes="$$skipped"; \
fi; \
@ -1278,7 +1293,8 @@ test: check
install-data-hook:
cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h
cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h pngconf.h
cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
pngconf.h
cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc

14
README
View File

@ -1,4 +1,4 @@
README for libpng version 1.0.43 - February 14, 2009 (shared library 10.0)
README for libpng version 1.0.44 - May 7, 2009 (shared library 10.0)
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 libpng10.so.0.1.0.43)
gcc, creates libpng10.so.0.1.0.44)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng10.so.0.1.0.43)
(gcc, creates libpng10.so.0.1.0.44)
makefile.gcmmx => Linux/ELF makefile
(gcc, creates libpng10.so.0.1.0.43,
(gcc, creates libpng10.so.0.1.0.44,
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 libpng10.so.0.1.0.43)
(gcc, creates libpng10.so.0.1.0.44)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng10.so.0.1.0.43)
(gcc, creates libpng10.so.0.1.0.44)
makefile.so9 => Solaris 9 makefile
(gcc, creates libpng10.so.0.1.0.43)
(gcc, creates libpng10.so.0.1.0.44)
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:
=========================
February 14, 2009
May 7, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.43 are Y2K compliant. It is my belief that earlier
upward through 1.0.44 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

24
configure vendored
View File

@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.62 for libpng 1.0.43.
# Generated by GNU Autoconf 2.62 for libpng 1.0.44.
#
# Report bugs to <png-mng-implement@lists.sourceforge.net>.
#
@ -745,8 +745,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
# Identity of this package.
PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng'
PACKAGE_VERSION='1.0.43'
PACKAGE_STRING='libpng 1.0.43'
PACKAGE_VERSION='1.0.44'
PACKAGE_STRING='libpng 1.0.44'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
ac_unique_file="pngget.c"
@ -1484,7 +1484,7 @@ if test "$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 1.0.43 to adapt to many kinds of systems.
\`configure' configures libpng 1.0.44 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 $ac_init_help in
short | recursive ) echo "Configuration of libpng 1.0.43:";;
short | recursive ) echo "Configuration of libpng 1.0.44:";;
esac
cat <<\_ACEOF
@ -1661,7 +1661,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
libpng configure 1.0.43
libpng configure 1.0.44
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 1.0.43, which was
It was created by libpng $as_me 1.0.44, 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='1.0.43'
VERSION='1.0.44'
cat >>confdefs.h <<_ACEOF
@ -2558,10 +2558,10 @@ fi
PNGLIB_VERSION=1.0.43
PNGLIB_VERSION=1.0.44
PNGLIB_MAJOR=1
PNGLIB_MINOR=0
PNGLIB_RELEASE=43
PNGLIB_RELEASE=44
@ -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 1.0.43, which was
This file was extended by libpng $as_me 1.0.44, 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 1.0.43
libpng config.status 1.0.44
configured by $0, generated by GNU Autoconf 2.62,
with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

6
configure.ac
View File

@ -18,15 +18,15 @@ AC_PREREQ(2.59)
dnl Version number stuff here:
AC_INIT([libpng], [1.0.43], [png-mng-implement@lists.sourceforge.net])
AC_INIT([libpng], [1.0.44], [png-mng-implement@lists.sourceforge.net])
AM_INIT_AUTOMAKE
dnl stop configure from automagically running automake
AM_MAINTAINER_MODE
PNGLIB_VERSION=1.0.43
PNGLIB_VERSION=1.0.44
PNGLIB_MAJOR=1
PNGLIB_MINOR=0
PNGLIB_RELEASE=43
PNGLIB_RELEASE=44
dnl End of version number stuff

6
example.c
View File

@ -2,7 +2,7 @@
#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
* Last changed in libpng 1.2.35 [February 14, 2009]
* Last changed in libpng 1.2.36 [May 7, 2009]
* This file has been placed in the public domain by the authors.
* Maintained 1998-2009 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)
@ -599,7 +599,7 @@ void write_png(char *file_name /* , ... other image information ... */)
*/
if (setjmp(png_jmpbuf(png_ptr)))
{
/* If we get here, we had a problem reading the file */
/* If we get here, we had a problem writing the file */
fclose(fp);
png_destroy_write_struct(&png_ptr, &info_ptr);
return (ERROR);
@ -694,7 +694,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* write_my_chunk();
* png_write_info(png_ptr, info_ptr);
*
* However, given the level of known- and unknown-chunk support in 1.1.0
* However, given the level of known- and unknown-chunk support in 1.2.0
* and up, this should no longer be necessary.
*/

55
libpng-1.0.43.txt → libpng-1.0.44.txt
View File

@ -1,17 +1,17 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.0.43 - February 14, 2009
libpng version 1.0.44 - May 7, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2008 Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
Based on:
libpng versions 0.97, January 1998, through 1.0.43 - February 14, 2009
libpng versions 0.97, January 1998, through 1.0.44 - May 7, 2009
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2008 Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
libpng 1.0 beta 6 version 0.96 May 28, 1997
Updated and distributed by Andreas Dilger
@ -141,9 +141,10 @@ so if it doesn't work, you don't have much to undo. Of course, you
will also want to insure that you are, in fact, dealing with a PNG
file. Libpng provides a simple check to see if a file is a PNG file.
To use it, pass in the first 1 to 8 bytes of the file to the function
png_sig_cmp(), and it will return 0 if the bytes match the corresponding
bytes of the PNG signature, or nonzero otherwise. Of course, the more bytes
you pass in, the greater the accuracy of the prediction.
png_sig_cmp(), and it will return 0 (false) if the bytes match the
corresponding bytes of the PNG signature, or nonzero (true) otherwise.
Of course, the more bytes you pass in, the greater the accuracy of the
prediction.
If you are intending to keep the file pointer open for use in libpng,
you must ensure you don't read more than 8 bytes from the beginning
@ -385,7 +386,6 @@ callback function:
(int)sizeof(unused_chunks)/5);
#endif
The high-level read interface
At this point there are two ways to proceed; through the high-level
@ -826,7 +826,6 @@ in libpng version 1.0.4, with the function names expanded to improve code
readability. In some future version they may actually do different
things.
PNG can have files with 16 bits per channel. If you only can handle
8 bits per channel, this will strip the pixels down to 8 bit.
@ -2033,7 +2032,12 @@ transformations are permitted, enabled by the following masks.
PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
to transparency
PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
PNG_TRANSFORM_STRIP_FILLER Strip out filler bytes.
PNG_TRANSFORM_STRIP_FILLER Strip out filler
bytes (deprecated).
PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading
filler bytes
PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing
filler bytes
If you have valid image data in the info structure (you can use
png_set_rows() to put image data in the info structure), simply do this:
@ -2440,9 +2444,15 @@ The replacement I/O functions must have prototypes as follows:
png_bytep data, png_size_t length);
void user_flush_data(png_structp png_ptr);
The user_read_data() function is responsible for detecting and
handling end-of-data errors.
Supplying NULL for the read, write, or flush functions sets them back
to using the default C stream functions. It is an error to read from
a write stream, and vice versa.
to using the default C stream functions, which expect the io_ptr to
point to a standard *FILE structure. It is probably a mistake
to use NULL for one of write_data_fn and output_flush_fn but not both
of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined.
It is an error to read from a write stream, and vice versa.
Error handling in libpng is done through png_error() and png_warning().
Errors handled through png_error() are fatal, meaning that png_error()
@ -2547,11 +2557,12 @@ you may also have to change the memory allocators (png_malloc, etc.).
Configuring for compiler xxx:
All includes for libpng are in pngconf.h. If you need to add/change/delete
an include, this is the place to do it. The includes that are not
needed outside libpng are protected by the PNG_INTERNAL definition,
which is only defined for those routines inside libpng itself. The
files in libpng proper only include png.h, which includes pngconf.h.
All includes for libpng are in pngconf.h. If you need to add, change
or delete an include, this is the place to do it.
The includes that are not needed outside libpng are protected by the
PNG_INTERNAL definition, which is only defined for those routines inside
libpng itself. The files in libpng proper only include png.h, which
includes pngconf.h.
Configuring zlib:
@ -2742,7 +2753,7 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
having level = 0 will be printed. There aren't any such statements in
this version of libpng, but if you insert some they will be printed.
VII. MNG support
VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@ -2816,15 +2827,17 @@ application:
png_uint_32 application_vn = PNG_LIBPNG_VER;
VIII. Y2K Compliance in libpng
VIII. (Omitted).
IX. (Omitted)
X. Y2K Compliance in libpng
February 14, 2009
May 7, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.43 are Y2K compliant. It is my belief that earlier
upward through 1.0.44 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

496
libpng.3
View File

@ -1,815 +1,404 @@
.TH LIBPNG 3 "February 14, 2009"
.TH LIBPNG 3 "May 7, 2009"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.43
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.44
.SH SYNOPSIS
\fI\fB
\fB#include <png.h>\fP
\fI\fB
\fB
#include <png.h>\fP
\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
\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
\fB#if !defined(PNG_1_0_X) png_int_32 png_get_int_32 (png_bytep buf); \fI#endif
\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
\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_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
\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
\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
\fB#if !defined(PNG_1_0_X) png_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
\fBpng_uint_32 png_get_uint_31 (png_bytep \fIbuf\fP\fB);\fP
\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_uint_32 (png_bytep buf); \fI#endif
\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
\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
\fB#if !defined(PNG_1_0_X) png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
\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
\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_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int flags); \fI#endif
\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
@ -821,18 +410,18 @@ 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 1.0.43 - February 14, 2009
libpng version 1.0.44 - May 7, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2008 Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
Based on:
libpng versions 0.97, January 1998, through 1.0.43 - February 14, 2009
libpng versions 0.97, January 1998, through 1.0.44 - May 7, 2009
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2008 Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
libpng 1.0 beta 6 version 0.96 May 28, 1997
Updated and distributed by Andreas Dilger
@ -962,9 +551,10 @@ so if it doesn't work, you don't have much to undo. Of course, you
will also want to insure that you are, in fact, dealing with a PNG
file. Libpng provides a simple check to see if a file is a PNG file.
To use it, pass in the first 1 to 8 bytes of the file to the function
png_sig_cmp(), and it will return 0 if the bytes match the corresponding
bytes of the PNG signature, or nonzero otherwise. Of course, the more bytes
you pass in, the greater the accuracy of the prediction.
png_sig_cmp(), and it will return 0 (false) if the bytes match the
corresponding bytes of the PNG signature, or nonzero (true) otherwise.
Of course, the more bytes you pass in, the greater the accuracy of the
prediction.
If you are intending to keep the file pointer open for use in libpng,
you must ensure you don't read more than 8 bytes from the beginning
@ -1206,7 +796,6 @@ callback function:
(int)sizeof(unused_chunks)/5);
#endif
.SS The high-level read interface
At this point there are two ways to proceed; through the high-level
@ -1647,7 +1236,6 @@ in libpng version 1.0.4, with the function names expanded to improve code
readability. In some future version they may actually do different
things.
PNG can have files with 16 bits per channel. If you only can handle
8 bits per channel, this will strip the pixels down to 8 bit.
@ -2854,7 +2442,12 @@ transformations are permitted, enabled by the following masks.
PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
to transparency
PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
PNG_TRANSFORM_STRIP_FILLER Strip out filler bytes.
PNG_TRANSFORM_STRIP_FILLER Strip out filler
bytes (deprecated).
PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading
filler bytes
PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing
filler bytes
If you have valid image data in the info structure (you can use
png_set_rows() to put image data in the info structure), simply do this:
@ -3261,9 +2854,15 @@ The replacement I/O functions must have prototypes as follows:
png_bytep data, png_size_t length);
void user_flush_data(png_structp png_ptr);
The user_read_data() function is responsible for detecting and
handling end-of-data errors.
Supplying NULL for the read, write, or flush functions sets them back
to using the default C stream functions. It is an error to read from
a write stream, and vice versa.
to using the default C stream functions, which expect the io_ptr to
point to a standard *FILE structure. It is probably a mistake
to use NULL for one of write_data_fn and output_flush_fn but not both
of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined.
It is an error to read from a write stream, and vice versa.
Error handling in libpng is done through png_error() and png_warning().
Errors handled through png_error() are fatal, meaning that png_error()
@ -3368,11 +2967,12 @@ you may also have to change the memory allocators (png_malloc, etc.).
.SS Configuring for compiler xxx:
All includes for libpng are in pngconf.h. If you need to add/change/delete
an include, this is the place to do it. The includes that are not
needed outside libpng are protected by the PNG_INTERNAL definition,
which is only defined for those routines inside libpng itself. The
files in libpng proper only include png.h, which includes pngconf.h.
All includes for libpng are in pngconf.h. If you need to add, change
or delete an include, this is the place to do it.
The includes that are not needed outside libpng are protected by the
PNG_INTERNAL definition, which is only defined for those routines inside
libpng itself. The files in libpng proper only include png.h, which
includes pngconf.h.
.SS Configuring zlib:
@ -3563,7 +3163,7 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
having level = 0 will be printed. There aren't any such statements in
this version of libpng, but if you insert some they will be printed.
.SH VII. MNG support
.SH VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@ -3637,15 +3237,17 @@ application:
png_uint_32 application_vn = PNG_LIBPNG_VER;
.SH VIII. Y2K Compliance in libpng
.SH VIII. (Omitted).
.SH IX. (Omitted)
.SH X. Y2K Compliance in libpng
February 14, 2009
May 7, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.43 are Y2K compliant. It is my belief that earlier
upward through 1.0.44 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
@ -3907,6 +3509,10 @@ the first widely used release:
1.2.35rc01-02 13 10235 12.so.0.35[.0]
1.0.43 10 10043 10.so.0.43[.0]
1.2.35 13 10235 12.so.0.35[.0]
1.2.36beta01-05 13 10236 12.so.0.36[.0]
1.2.36rc01 13 10236 12.so.0.36[.0]
1.0.44 10 10044 10.so.0.44[.0]
1.2.36 13 10236 12.so.0.36[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@ -3962,7 +3568,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.43 - February 14, 2009:
Libpng version 1.0.44 - May 7, 2009:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -3983,7 +3589,7 @@ 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 1.0.43, February 14, 2009, are
libpng versions 1.2.6, August 15, 2004, through 1.0.44, May 7, 2009, 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
@ -4082,7 +3688,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
February 14, 2009
May 7, 2009
.\" end of man page

518
libpngpf.3
View File

@ -1,782 +1,268 @@
.TH LIBPNGPF 3 "February 14, 2009"
.TH LIBPNGPF 3 "May 7, 2009"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.43
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.44
(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
\fBvoid 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
\fI\fB
\fI\fB
\fBvoid png_do_bgr (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_chop (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_do_gray_to_rgb (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_invert (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_do_packswap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_do_read_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_read_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBint png_do_rgb_to_gray (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_do_swap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_unpack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_do_write_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fIpass\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_write_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_write_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_do_write_transformations (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid *png_far_to_near (png_structp png_ptr,png_voidp \fP\fIptr\fP\fB, int \fIcheck\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_flush (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_info_destroy (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_init_mmx_flags (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_init_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_process_some_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_check_crc (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_crc_finish (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_crc_skip (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_push_have_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_have_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_have_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_process_row (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_read_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_read_IDAT (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_read_sig (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_read_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_push_read_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_push_save_buffer (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBpng_uint_32 png_read_chunk_header (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_read_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_read_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_read_push_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_read_start_row (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_read_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_reset_crc (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_write_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_filtered_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIfiltered_row\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_find_filter (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fIrow_info\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_gAMA (png_structp \fP\fIpng_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIint_file_gamma\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_uint_16p \fP\fIhist\fP\fB, int \fInum_hist\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\fBvoid png_write_IDAT (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
\fI\fB
\fI\fB
\fBvoid png_write_IEND (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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
\fI\fB
\fI\fB
\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 "February 14, 2009"
.TH PNG 5 "May 7, 2009"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

5
png.c
View File

@ -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_0_43 Your_png_h_is_not_version_1_0_43;
typedef version_1_0_44 Your_png_h_is_not_version_1_0_44;
/* Version information for C files. This had better match the version
* string defined in png.h. */
@ -694,7 +694,7 @@ 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 1.0.43 - February 14, 2009\n\
return ((png_charp) "\n libpng version 1.0.44 - May 7, 2009\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");
@ -800,6 +800,7 @@ png_convert_size(size_t size)
/* Added at libpng version 1.2.34 and 1.4.0 (moved from pngset.c) */
#if defined(PNG_cHRM_SUPPORTED)
#if !defined(PNG_NO_CHECK_cHRM)
/*
Multiply two 32-bit numbers, V1 and V2, using 32-bit
arithmetic, to produce a 64 bit result in the HI/LO words.

150
png.h
View File

@ -1,6 +1,6 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.0.43 - February 14, 2009
* libpng version 1.0.44 - May 7, 2009
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -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 1.0.43 - February 14, 2009: Glenn
* libpng versions 0.97, January 1998, through 1.0.44 - May 7, 2009: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -222,6 +222,10 @@
* 1.2.35rc01-02 13 10235 12.so.0.35[.0]
* 1.0.43 10 10043 10.so.0.43[.0]
* 1.2.35 13 10235 12.so.0.35[.0]
* 1.2.36beta01-05 13 10236 12.so.0.36[.0]
* 1.2.36rc01 13 10236 12.so.0.36[.0]
* 1.0.44 10 10044 10.so.0.44[.0]
* 1.2.36 13 10236 12.so.0.36[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -251,8 +255,8 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.2.6, August 15, 2004, through 1.0.43, February 14, 2009, are
* Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
* libpng versions 1.2.6, August 15, 2004, through 1.0.44, May 7, 2009, are
* Copyright (c) 2004, 2006-2009 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:
*
@ -363,13 +367,13 @@
* Y2K compliance in libpng:
* =========================
*
* February 14, 2009
* May 7, 2009
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.0.43 are Y2K compliant. It is my belief that earlier
* upward through 1.0.44 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
@ -425,9 +429,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.43"
#define PNG_LIBPNG_VER_STRING "1.0.44"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.43 - February 14, 2009\n"
" libpng version 1.0.44 - May 7, 2009\n"
#define PNG_LIBPNG_VER_SONUM 0
#define PNG_LIBPNG_VER_DLLNUM 10
@ -435,7 +439,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 0
#define PNG_LIBPNG_VER_RELEASE 43
#define PNG_LIBPNG_VER_RELEASE 44
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
@ -463,7 +467,7 @@
* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
* version 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */
#define PNG_LIBPNG_VER 10043 /* 1.0.43 */
#define PNG_LIBPNG_VER 10044 /* 1.0.44 */
#ifndef PNG_VERSION_INFO_ONLY
/* include the compression library's header */
@ -1487,7 +1491,7 @@ struct png_struct_def
/* 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_0_43;
typedef png_structp version_1_0_44;
typedef png_struct FAR * FAR * png_structpp;
@ -1987,6 +1991,11 @@ extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr));
* If buffered output is not used, then output_flush_fn can be set to NULL.
* If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time
* output_flush_fn will be ignored (and thus can be NULL).
* It is probably a mistake to use NULL for output_flush_fn if
* write_data_fn is not also NULL unless you have built libpng with
* PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's
* default flush function, which uses the standard *FILE structure, will
* be used.
*/
extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr,
png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn));
@ -2556,64 +2565,72 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
#ifndef PNG_DEBUG_FILE
#define PNG_DEBUG_FILE stderr
#endif /* PNG_DEBUG_FILE */
#if (PNG_DEBUG > 1)
#ifndef png_debug
/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on
* non-ISO compilers */
#ifdef __STDC__
#define png_debug(l,m) \
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
}
#endif
#ifndef png_debug1
#define png_debug1(l,m,p1) \
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
}
#endif
#ifndef png_debug2
#define png_debug2(l,m,p1,p2) \
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
}
#endif
#else /* __STDC __ */
#ifndef png_debug
#define png_debug(l,m) \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format);
#endif
#ifndef png_debug1
#define png_debug1(l,m,p1) \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format,p1);
#endif
#ifndef png_debug2
#define png_debug2(l,m,p1,p2) \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format,p1,p2);
#endif
#endif /* __STDC __ */
# ifdef __STDC__
# ifndef png_debug
# define png_debug(l,m) \
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
}
# endif
# ifndef png_debug1
# define png_debug1(l,m,p1) \
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
}
# endif
# ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
}
# endif
# else /* __STDC __ */
# ifndef png_debug
# define png_debug(l,m) \
{ \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format); \
}
# endif
# ifndef png_debug1
# define png_debug1(l,m,p1) \
{ \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format,p1); \
}
# endif
# ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
{ \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format,p1,p2); \
}
# endif
# endif /* __STDC __ */
#endif /* (PNG_DEBUG > 1) */
#endif /* _MSC_VER */
#endif /* (PNG_DEBUG > 0) */
#endif /* PNG_DEBUG */
@ -2708,6 +2725,7 @@ extern PNG_EXPORT(void,png_set_mmx_thresholds)
#if !defined(PNG_1_0_X)
/* png.c, pnggccrd.c, or pngvcrd.c */
extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
#endif /* PNG_1_0_X */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
/* Strip the prepended error numbers ("#nnn ") from error and warning
@ -2717,8 +2735,6 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
png_ptr, png_uint_32 strip_mode));
#endif
#endif /* PNG_1_0_X */
/* Added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp

37
pngconf.h
View File

@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.0.43 - February 14, 2009
* libpng version 1.0.44 - May 7, 2009
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -308,21 +308,29 @@
#ifdef PNG_SETJMP_SUPPORTED
/* This is an attempt to force a single setjmp behaviour on Linux. If
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
*
* You can bypass this test if you know that your application uses exactly
* the same setjmp.h that was included when libpng was built. Only define
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
* while building a separate libpng library for general use.
*/
# ifdef __linux__
# ifdef _BSD_SOURCE
# define PNG_SAVE_BSD_SOURCE
# undef _BSD_SOURCE
# endif
# ifdef _SETJMP_H
/* If you encounter a compiler error here, see the explanation
* near the end of INSTALL.
*/
__pngconf.h__ already includes setjmp.h;
__dont__ include it again.;
# endif
# endif /* __linux__ */
# ifndef PNG_SKIP_SETJMP_CHECK
# ifdef __linux__
# ifdef _BSD_SOURCE
# define PNG_SAVE_BSD_SOURCE
# undef _BSD_SOURCE
# endif
# ifdef _SETJMP_H
/* If you encounter a compiler error here, see the explanation
* near the end of INSTALL.
*/
__pngconf.h__ in libpng already includes setjmp.h;
__dont__ include it again.;
# endif
# endif /* __linux__ */
# endif /* PNG_SKIP_SETJMP_CHECK */
/* include setjmp.h for error handling */
# include <setjmp.h>
@ -795,7 +803,6 @@
#endif
/* These are currently experimental features, define them if you want */
/* very little testing */

38
pngerror.c
View File

@ -1,9 +1,9 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.2.34 [December 18, 2008]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@ -44,7 +44,7 @@ png_error(png_structp png_ptr, png_const_charp error_message)
{
if (*error_message == '#')
{
/* Strip "#nnnn " from beginning of error message. */
/* Strip "#nnnn " from beginning of error message. */
int offset;
for (offset = 1; offset<15; offset++)
if (error_message[offset] == ' ')
@ -217,7 +217,7 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (*error_message == '#')
{
/* Strip "#nnnn " from beginning of warning message. */
/* Strip "#nnnn " from beginning of error message. */
int offset;
char error_number[16];
for (offset = 0; offset<15; offset++)
@ -229,15 +229,21 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
if ((offset > 1) && (offset < 15))
{
error_number[offset - 1] = '\0';
fprintf(stderr, "libpng error no. %s: %s\n", error_number,
error_message + offset + 1);
fprintf(stderr, "libpng error no. %s: %s",
error_number, error_message + offset + 1);
fprintf(stderr, "\n");
}
else
fprintf(stderr, "libpng error: %s, offset=%d\n", error_message, offset);
fprintf(stderr, "libpng error: %s, offset=%d",
error_message, offset);
fprintf(stderr, "\n");
}
else
#endif
fprintf(stderr, "libpng error: %s\n", error_message);
{
fprintf(stderr, "libpng error: %s", error_message);
fprintf(stderr, "\n");
}
#endif
#ifdef PNG_SETJMP_SUPPORTED
@ -285,15 +291,23 @@ png_default_warning(png_structp png_ptr, png_const_charp warning_message)
if ((offset > 1) && (offset < 15))
{
warning_number[offset + 1] = '\0';
fprintf(stderr, "libpng warning no. %s: %s\n", warning_number,
warning_message + offset);
fprintf(stderr, "libpng warning no. %s: %s",
warning_number, warning_message + offset);
fprintf(stderr, "\n");
}
else
fprintf(stderr, "libpng warning: %s\n", warning_message);
{
fprintf(stderr, "libpng warning: %s",
warning_message);
fprintf(stderr, "\n");
}
}
else
# endif
fprintf(stderr, "libpng warning: %s\n", warning_message);
{
fprintf(stderr, "libpng warning: %s", warning_message);
fprintf(stderr, "\n");
}
#else
warning_message = warning_message; /* make compiler happy */
#endif

1
pngmem.c
View File

@ -425,6 +425,7 @@ png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn,
need to allocate exactly 64K, so whatever you call here must
have the ability to do that. */
png_voidp PNGAPI
png_malloc(png_structp png_ptr, png_uint_32 size)
{

4
pngread.c
View File

@ -1434,11 +1434,11 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
{
info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr,
info_ptr->height * png_sizeof(png_bytep));
png_memset(info_ptr->row_pointers, 0, info_ptr->height
* png_sizeof(png_bytep));
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_ROWS;
#endif
png_memset(info_ptr->row_pointers, 0, info_ptr->height
* png_sizeof(png_bytep));
for (row = 0; row < (int)info_ptr->height; row++)
info_ptr->row_pointers[row] = (png_bytep)png_malloc(png_ptr,
png_get_rowbytes(png_ptr, info_ptr));

8
pngrio.c
View File

@ -1,9 +1,9 @@
/* pngrio.c - functions for data input
*
* Last changed in libpng 1.2.30 [August 15, 2008]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@ -132,7 +132,9 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
a location where input data can be stored, and a 32-bit
unsigned int that is the number of bytes to be read.
To exit and output any fatal error messages the new write
function should call png_error(png_ptr, "Error msg"). */
function should call png_error(png_ptr, "Error msg").
May be NULL, in which case libpng's default function will
be used. */
void PNGAPI
png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
png_rw_ptr read_data_fn)

7
pngrtran.c
View File

@ -455,10 +455,8 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
int num_green = (1 << PNG_DITHER_GREEN_BITS);
int num_blue = (1 << PNG_DITHER_BLUE_BITS);
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_memset(png_ptr->palette_lookup, 0, num_entries *
png_sizeof(png_byte));
@ -4125,14 +4123,13 @@ png_build_gamma_table(png_structp png_ptr)
png_ptr->gamma_16_table = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * png_sizeof(png_uint_16p)));
png_memset(png_ptr->gamma_16_table, 0, num * png_sizeof(png_uint_16p));
if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND))
{
double fin, fout;
png_uint_32 last, max;
png_memset(png_ptr->gamma_16_table, 0, num * png_sizeof(png_uint_16p));
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr,
@ -4187,7 +4184,6 @@ png_build_gamma_table(png_structp png_ptr)
png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * png_sizeof(png_uint_16p )));
png_memset(png_ptr->gamma_16_to_1, 0, num * png_sizeof(png_uint_16p));
for (i = 0; i < num; i++)
@ -4212,7 +4208,6 @@ png_build_gamma_table(png_structp png_ptr)
png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * png_sizeof(png_uint_16p)));
png_memset(png_ptr->gamma_16_from_1, 0,
num * png_sizeof(png_uint_16p));

12
pngrutil.c
View File

@ -1,9 +1,9 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.2.34 [December 18, 2008]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@ -3187,9 +3187,11 @@ 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_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;
png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes + 64);
if (png_ptr->interlaced)
png_memset(png_ptr->big_row_buf, 0, png_ptr->rowbytes + 64);
png_ptr->row_buf = png_ptr->big_row_buf + 32;
png_ptr->old_big_row_buf_size = row_bytes + 64;
}
#ifdef PNG_MAX_MALLOC_64K

36
pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* Last changed in libpng 1.2.35 [February 14, 2009]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -108,7 +108,7 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
void PNGAPI
png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma)
{
double gamma;
double png_gamma;
png_debug1(1, "in %s storage function", "gAMA");
if (png_ptr == NULL || info_ptr == NULL)
return;
@ -117,16 +117,16 @@ png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma)
if (file_gamma > 21474.83)
{
png_warning(png_ptr, "Limiting gamma to 21474.83");
gamma=21474.83;
png_gamma=21474.83;
}
else
gamma = file_gamma;
info_ptr->gamma = (float)gamma;
png_gamma = file_gamma;
info_ptr->gamma = (float)png_gamma;
#ifdef PNG_FIXED_POINT_SUPPORTED
info_ptr->int_gamma = (int)(gamma*100000.+.5);
info_ptr->int_gamma = (int)(png_gamma*100000.+.5);
#endif
info_ptr->valid |= PNG_INFO_gAMA;
if (gamma == 0.0)
if (png_gamma == 0.0)
png_warning(png_ptr, "Setting gamma=0");
}
#endif
@ -134,7 +134,7 @@ void PNGAPI
png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
int_gamma)
{
png_fixed_point gamma;
png_fixed_point png_gamma;
png_debug1(1, "in %s storage function", "gAMA");
if (png_ptr == NULL || info_ptr == NULL)
@ -143,26 +143,26 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
if (int_gamma > (png_fixed_point) PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Limiting gamma to 21474.83");
gamma=PNG_UINT_31_MAX;
png_gamma=PNG_UINT_31_MAX;
}
else
{
if (int_gamma < 0)
{
png_warning(png_ptr, "Setting negative gamma to zero");
gamma = 0;
png_gamma = 0;
}
else
gamma = int_gamma;
png_gamma = int_gamma;
}
#ifdef PNG_FLOATING_POINT_SUPPORTED
info_ptr->gamma = (float)(gamma/100000.);
info_ptr->gamma = (float)(png_gamma/100000.);
#endif
#ifdef PNG_FIXED_POINT_SUPPORTED
info_ptr->int_gamma = gamma;
info_ptr->int_gamma = png_gamma;
#endif
info_ptr->valid |= PNG_INFO_gAMA;
if (gamma == 0)
if (png_gamma == 0)
png_warning(png_ptr, "Setting gamma=0");
}
#endif
@ -383,10 +383,6 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
return;
}
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_PCAL;
#endif
png_memset(info_ptr->pcal_params, 0, (nparams + 1) * png_sizeof(png_charp));
for (i = 0; i < nparams; i++)
@ -404,6 +400,9 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
}
info_ptr->valid |= PNG_INFO_pCAL;
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_PCAL;
#endif
}
#endif
@ -961,7 +960,6 @@ png_set_sPLT(png_structp png_ptr,
png_memcpy(np, info_ptr->splt_palettes,
info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t));
png_free(png_ptr, info_ptr->splt_palettes);
info_ptr->splt_palettes=NULL;

46
pngtest.c
View File

@ -1,9 +1,9 @@
/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.2.32 [September 18, 2008]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@ -362,12 +362,8 @@ pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
static void
pngtest_flush(png_structp png_ptr)
{
#if !defined(_WIN32_WCE)
png_FILE_p io_ptr;
io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
if (io_ptr != NULL)
fflush(io_ptr);
#endif
/* Do nothing; fflush() is said to be just a waste of energy. */
png_ptr = png_ptr; /* stifle compiler warning */
}
#endif
@ -611,7 +607,7 @@ static int read_user_chunk_callback(png_struct *png_ptr,
png_unknown_chunkp chunk)
{
png_uint_32
*user_chunk_data;
*my_user_chunk_data;
/* Return one of the following: */
/* return (-n); chunk had an error */
@ -634,8 +630,8 @@ static int read_user_chunk_callback(png_struct *png_ptr,
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;
my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);
my_user_chunk_data[0]=chunk->data[0]+1;
return (1);
}
if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */
@ -647,11 +643,11 @@ static int read_user_chunk_callback(png_struct *png_ptr,
if (chunk->size != 9)
return (-1); /* Error return */
user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);
my_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];
my_user_chunk_data[1]=png_get_uint_31(png_ptr, chunk->data);
my_user_chunk_data[2]=png_get_uint_31(png_ptr, chunk->data + 4);
my_user_chunk_data[3]=(png_uint_32)chunk->data[8];
return (1);
@ -1161,7 +1157,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
ster_chunk_data[1];
if (verbose)
fprintf(STDERR, "stereo mode = %lu\n",
fprintf(STDERR, "\n 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);
@ -1174,7 +1170,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
vpag_chunk_data[9];
if (verbose)
fprintf(STDERR, "vpAg = %lu x %lu, units=%lu\n",
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]);
@ -1318,7 +1314,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_uint_32 iwidth, iheight;
iwidth = png_get_image_width(write_ptr, write_info_ptr);
iheight = png_get_image_height(write_ptr, write_info_ptr);
fprintf(STDERR, "Image width = %lu, height = %lu\n",
fprintf(STDERR, "\n Image width = %lu, height = %lu\n",
(unsigned long)iwidth, (unsigned long)iheight);
}
#endif
@ -1439,7 +1435,7 @@ main(int argc, char *argv[])
int multiple = 0;
int ierror = 0;
fprintf(STDERR, "Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, "\n 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));
/* Show the version of libpng used in building the library */
@ -1527,7 +1523,7 @@ main(int argc, char *argv[])
int k;
#endif
int kerror;
fprintf(STDERR, "Testing %s:", argv[i]);
fprintf(STDERR, "\n Testing %s:", argv[i]);
kerror = test_one_file(argv[i], outname);
if (kerror == 0)
{
@ -1597,7 +1593,7 @@ 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, "\n Testing %s:", inname);
kerror = test_one_file(inname, outname);
if (kerror == 0)
{
@ -1628,7 +1624,7 @@ main(int argc, char *argv[])
else
{
if (verbose == 0 && i != 2)
fprintf(STDERR, "Testing %s:", inname);
fprintf(STDERR, "\n Testing %s:", inname);
fprintf(STDERR, " FAIL\n");
ierror += kerror;
}
@ -1678,11 +1674,11 @@ main(int argc, char *argv[])
#endif
if (ierror == 0)
fprintf(STDERR, "libpng passes test\n");
fprintf(STDERR, " libpng passes test\n");
else
fprintf(STDERR, "libpng FAILS test\n");
fprintf(STDERR, " libpng FAILS test\n");
return (int)(ierror != 0);
}
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_43 your_png_h_is_not_version_1_0_43;
typedef version_1_0_44 your_png_h_is_not_version_1_0_44;

15
pngwio.c
View File

@ -1,7 +1,7 @@
/* pngwio.c - functions for data output
*
* Last changed in libpng 1.2.35 [February 14, 2009]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -137,8 +137,7 @@ png_default_flush(png_structp png_ptr)
if (png_ptr == NULL) return;
#if !defined(_WIN32_WCE)
io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
if (io_ptr != NULL && fileno(io_ptr) != -1)
fflush(io_ptr);
fflush(io_ptr);
#endif
}
#endif
@ -156,7 +155,9 @@ png_default_flush(png_structp png_ptr)
data to be written, and a 32-bit unsigned int that is
the number of bytes to be written. The new write
function should call png_error(png_ptr, "Error msg")
to exit and output any fatal error messages.
to exit and output any fatal error messages. May be
NULL, in which case libpng's default function will
be used.
flush_data_fn - pointer to a new flush function that takes as its
arguments a pointer to a png_struct. After a call to
the flush function, there should be no data in any buffers
@ -165,7 +166,11 @@ png_default_flush(png_structp png_ptr)
supplied although it doesn't have to do anything. If
PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
time, output_flush_fn will be ignored, although it must be
supplied for compatibility. */
supplied for compatibility. May be NULL, in which case
libpng's default function will be used, if
PNG_WRITE_FLUSH_SUPPORTED is defined. This is not
a good idea if io_ptr does not point to a standard
*FILE structure. */
void PNGAPI
png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)

9
pngwutil.c
View File

@ -1,9 +1,9 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.2.34 [December 18, 2008]
* Last changed in libpng 1.2.36 [May 7, 2009]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*/
@ -785,6 +785,7 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
{
png_warning(png_ptr,
"Embedded profile length too large in iCCP chunk");
png_free(png_ptr, new_name);
return;
}
@ -1759,9 +1760,9 @@ png_write_start_row(png_structp png_ptr)
if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH))
{
/* set up previous row buffer */
png_ptr->prev_row = (png_bytep)png_malloc(png_ptr,
png_ptr->prev_row = (png_bytep)png_malloc(png_ptr,
(png_uint_32)buf_size);
png_memset(png_ptr->prev_row, 0, buf_size);
png_memset(png_ptr->prev_row, 0, buf_size);
if (png_ptr->do_filter & PNG_FILTER_UP)
{

4
scripts/CMakeLists.txt
View File

@ -6,7 +6,7 @@ project(PNG)
set(PNGLIB_MAJOR 1)
set(PNGLIB_MINOR 0)
set(PNGLIB_RELEASE 43)
set(PNGLIB_RELEASE 44)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
@ -169,7 +169,7 @@ configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
# SET UP LINKS
set_target_properties(${PNG_LIB_NAME} PROPERTIES
# VERSION 0.${PNGLIB_RELEASE}.1.0.43
# VERSION 0.${PNGLIB_RELEASE}.1.0.44
VERSION 0.${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=1.0.43
version=1.0.44
prefix=""
libdir=""
libs=""

2
scripts/libpng.pc.in
View File

@ -5,6 +5,6 @@ includedir=@includedir@/libpng10
Name: libpng
Description: Loads and saves PNG files
Version: 1.0.43
Version: 1.0.44
Libs: -L${libdir} -lpng10
Cflags: -I${includedir}

2
scripts/makefile.32sunu
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.64sunu
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.aix
View File

@ -20,7 +20,7 @@ LN_SF = ln -f -s
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local

2
scripts/makefile.beos
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.cygwin
View File

@ -74,7 +74,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng10
PNGMAJ = 0
CYGDLL = 10
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(CYGDLL).dll

2
scripts/makefile.darwin
View File

@ -19,7 +19,7 @@ ZLIBINC=../zlib
# Library name:
LIBNAME = libpng10
PNGMAJ = 12
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.dec
View File

@ -5,7 +5,7 @@
# Library name:
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10

2
scripts/makefile.elf
View File

@ -13,7 +13,7 @@
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.gcmmx
View File

@ -14,7 +14,7 @@
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.hp64
View File

@ -18,7 +18,7 @@ ZLIBINC=/opt/zlib/include
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.hpgcc
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.hpux
View File

@ -18,7 +18,7 @@ ZLIBINC=/opt/zlib/include
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.linux
View File

@ -7,7 +7,7 @@
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.mingw
View File

@ -74,7 +74,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng10
PNGMAJ = 0
MINGDLL = 10
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=libpng$(MINGDLL).dll

2
scripts/makefile.ne12bsd
View File

@ -14,7 +14,7 @@ INCSDIR=${LOCALBASE}/include/libpng10
LIB= png12
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.0.43
SHLIB_MINOR= 1.0.44
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= 1.0.43
SHLIB_MINOR= 1.0.44
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 = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
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= 1.0.43
SHLIB_MINOR= 1.0.44
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 = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.sggcc
View File

@ -6,7 +6,7 @@
# Library name:
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.sgi
View File

@ -6,7 +6,7 @@
# Library name:
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.so9
View File

@ -8,7 +8,7 @@
# Library name:
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10

2
scripts/makefile.solaris
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

2
scripts/makefile.solaris-x86
View File

@ -8,7 +8,7 @@
# Library name:
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.43
PNGMIN = 1.0.44
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 1.0.43
; Version 1.0.44
LIBRARY PNG
DESCRIPTION "PNG image compression library for OS/2"

2
scripts/pngw32.def
View File

@ -5,7 +5,7 @@
LIBRARY
EXPORTS
;Version 1.0.43
;Version 1.0.44
png_build_grayscale_palette @1
png_check_sig @2
png_chunk_error @3