[devel] Bump to version 1.4.0beta97

This commit is contained in:
Glenn Randers-Pehrson 2009-11-12 08:59:53 -06:00
parent 30ec56c8d3
commit 9d57241790
46 changed files with 170 additions and 167 deletions

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@ -1,5 +1,5 @@
Libpng 1.4.0beta96 - November 12, 2009
Libpng 1.4.0beta97 - November 12, 2009
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -9,20 +9,20 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
1.4.0beta96.tar.xz (LZMA-compressed, recommended)
1.4.0beta96.tar.gz
1.4.0beta96.tar.bz2
1.4.0beta97.tar.xz (LZMA-compressed, recommended)
1.4.0beta97.tar.gz
1.4.0beta97.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lp140b96.zip
lp140b96.7z
lp140b97.zip
lp140b97.7z
Other information:
1.4.0beta96-README.txt
1.4.0beta96-LICENSE.txt
1.4.0beta97-README.txt
1.4.0beta97-LICENSE.txt
Changes since the last public release (1.2.10):

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@ -203,7 +203,7 @@ configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
# SET UP LINKS
if(PNG_SHARED)
set_target_properties(${PNG_LIB_NAME} PROPERTIES
# VERSION 14.${PNGLIB_RELEASE}.1.4.0beta96
# VERSION 14.${PNGLIB_RELEASE}.1.4.0beta97
VERSION 14.${PNGLIB_RELEASE}.0
SOVERSION 14
CLEAN_DIRECT_OUTPUT 1)

18
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.4.0beta96 - November 12, 2009
Installing libpng version 1.4.0beta97 - November 12, 2009
On Unix/Linux and similar systems, you can simply type
@ -43,7 +43,7 @@ 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-1.4.0beta96" or "lpng109" and "zlib-1.2.1"
might be called "libpng-1.4.0beta97" 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:
@ -94,14 +94,14 @@ include
CMakeLists.txt => "cmake" script
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.elf => Linux/ELF makefile symbol versioning,
gcc, creates libpng14.so.14.1.4.0beta96)
gcc, creates libpng14.so.14.1.4.0beta97)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng14.so.14.1.4.0beta96)
(gcc, creates libpng14.so.14.1.4.0beta97)
makefile.gcmmx => Linux/ELF makefile
(gcc, creates libpng14.so.14.1.4.0beta96,
(gcc, creates libpng14.so.14.1.4.0beta97,
uses assembler code tuned for Intel MMX platform)
makefile.nommx => Linux/ELF makefile
(gcc, creates libpng14.so.14.1.4.0beta96
(gcc, creates libpng14.so.14.1.4.0beta97
does not use Intel MMX assembler code)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
@ -124,12 +124,12 @@ include
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc,
creates libpng14.so.14.1.4.0beta96)
creates libpng14.so.14.1.4.0beta97)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc,
creates libpng14.so.14.1.4.0beta96)
creates libpng14.so.14.1.4.0beta97)
makefile.so9 => Solaris 9 makefile (gcc,
creates libpng14.so.14.1.4.0beta96)
creates libpng14.so.14.1.4.0beta97)
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

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@ -10,7 +10,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.4.0beta96, November 12, 2009, are
libpng versions 1.2.6, August 15, 2004, through 1.4.0beta97, November 12, 2009, are
Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors

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@ -88,7 +88,7 @@ EXTRA_DIST= \
${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \
$(TESTS) \
example.c libpng-1.4.0beta96.txt pngvcrd.c
example.c libpng-1.4.0beta97.txt pngvcrd.c
CLEANFILES= pngout.png libpng14.pc libpng14-config libpng.vers \
libpng.sym

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@ -352,7 +352,7 @@ EXTRA_DIST = \
${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \
$(TESTS) \
example.c libpng-1.4.0beta96.txt pngvcrd.c
example.c libpng-1.4.0beta97.txt pngvcrd.c
CLEANFILES = pngout.png libpng14.pc libpng14-config libpng.vers \
libpng.sym

14
README
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@ -1,4 +1,4 @@
README for libpng version 1.4.0beta96 - November 12, 2009 (shared library 14.0)
README for libpng version 1.4.0beta97 - November 12, 2009 (shared library 14.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
@ -184,11 +184,11 @@ 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 libpng14.so.14.1.4.0beta96)
gcc, creates libpng14.so.14.1.4.0beta97)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng14.so.14.1.4.0beta96)
(gcc, creates libpng14.so.14.1.4.0beta97)
makefile.gcmmx => Linux/ELF makefile
(gcc, creates libpng14.so.14.1.4.0beta96,
(gcc, creates libpng14.so.14.1.4.0beta97,
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
@ -209,12 +209,12 @@ Files in this distribution:
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics
(gcc, creates libpng14.so.14.1.4.0beta96)
(gcc, creates libpng14.so.14.1.4.0beta97)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng14.so.14.1.4.0beta96)
(gcc, creates libpng14.so.14.1.4.0beta97)
makefile.so9 => Solaris 9 makefile
(gcc, creates libpng14.so.14.1.4.0beta96)
(gcc, creates libpng14.so.14.1.4.0beta97)
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

22
configure vendored
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@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.64 for libpng 1.4.0beta96.
# Generated by GNU Autoconf 2.64 for libpng 1.4.0beta97.
#
# Report bugs to <png-mng-implement@lists.sourceforge.net>.
#
@ -698,8 +698,8 @@ MAKEFLAGS=
# Identity of this package.
PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng'
PACKAGE_VERSION='1.4.0beta96'
PACKAGE_STRING='libpng 1.4.0beta96'
PACKAGE_VERSION='1.4.0beta97'
PACKAGE_STRING='libpng 1.4.0beta97'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
PACKAGE_URL=''
@ -1431,7 +1431,7 @@ 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 1.4.0beta96 to adapt to many kinds of systems.
\`configure' configures libpng 1.4.0beta97 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@ -1501,7 +1501,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
short | recursive ) echo "Configuration of libpng 1.4.0beta96:";;
short | recursive ) echo "Configuration of libpng 1.4.0beta97:";;
esac
cat <<\_ACEOF
@ -1608,7 +1608,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
libpng configure 1.4.0beta96
libpng configure 1.4.0beta97
generated by GNU Autoconf 2.64
Copyright (C) 2009 Free Software Foundation, Inc.
@ -2033,7 +2033,7 @@ 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 1.4.0beta96, which was
It was created by libpng $as_me 1.4.0beta97, which was
generated by GNU Autoconf 2.64. Invocation command line was
$ $0 $@
@ -2841,7 +2841,7 @@ fi
# Define the identity of the package.
PACKAGE='libpng'
VERSION='1.4.0beta96'
VERSION='1.4.0beta97'
cat >>confdefs.h <<_ACEOF
@ -2905,7 +2905,7 @@ fi
PNGLIB_VERSION=1.4.0beta96
PNGLIB_VERSION=1.4.0beta97
PNGLIB_MAJOR=1
PNGLIB_MINOR=4
PNGLIB_RELEASE=0
@ -12022,7 +12022,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=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 1.4.0beta96, which was
This file was extended by libpng $as_me 1.4.0beta97, which was
generated by GNU Autoconf 2.64. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@ -12086,7 +12086,7 @@ Report bugs to <png-mng-implement@lists.sourceforge.net>."
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_version="\\
libpng config.status 1.4.0beta96
libpng config.status 1.4.0beta97
configured by $0, generated by GNU Autoconf 2.64,
with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

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@ -18,12 +18,12 @@ AC_PREREQ(2.59)
dnl Version number stuff here:
AC_INIT([libpng], [1.4.0beta96], [png-mng-implement@lists.sourceforge.net])
AC_INIT([libpng], [1.4.0beta97], [png-mng-implement@lists.sourceforge.net])
AM_INIT_AUTOMAKE
dnl stop configure from automagically running automake
AM_MAINTAINER_MODE
PNGLIB_VERSION=1.4.0beta96
PNGLIB_VERSION=1.4.0beta97
PNGLIB_MAJOR=1
PNGLIB_MINOR=4
PNGLIB_RELEASE=0

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@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.4.0beta96 - November 12, 2009
libpng version 1.4.0beta97 - November 12, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.4.0beta96 - November 12, 2009
libpng versions 0.97, January 1998, through 1.4.0beta97 - November 12, 2009
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@ -878,7 +878,7 @@ things.
As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
added. It expands the sample depth without changing tRNS to alpha.
As of libpng version 1.4.0beta96, not all possible expansions are supported.
As of libpng version 1.4.0beta97, not all possible expansions are supported.
In the following table, the 01 means grayscale with depth<8, 31 means
indexed with depth<8, other numerals represent the color type, "T" means
@ -3234,7 +3234,7 @@ Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.4.0beta96 are Y2K compliant. It is my belief that earlier
upward through 1.4.0beta97 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

157
libpng.3
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@ -825,8 +825,8 @@ will need. We assume that libpng is already installed; see the
INSTALL file for instructions on how to install libpng.
For examples of libpng usage, see the files "example.c", "pngtest.c",
and the files in the "contrib" directory, all of which are included in
the libpng distribution.
and the files in the "contrib" directory, all of which are included in the
libpng distribution.
Libpng was written as a companion to the PNG specification, as a way
of reducing the amount of time and effort it takes to support the PNG
@ -1243,8 +1243,8 @@ dithering, and setting filler.) If this is the case, simply do this:
png_read_png(png_ptr, info_ptr, png_transforms, NULL)
where png_transforms is an integer containing the bitwise OR of some
set of transformation flags. This call is equivalent to png_read_info(),
where png_transforms is an integer containing the bitwise OR of
some set of transformation flags. This call is equivalent to png_read_info(),
followed the set of transformations indicated by the transform mask,
then png_read_image(), and finally png_read_end().
@ -1395,8 +1395,8 @@ These are also important, but their validity depends on whether the chunk
has been read. The png_get_valid(png_ptr, info_ptr, PNG_INFO_<chunk>) and
png_get_<chunk>(png_ptr, info_ptr, ...) functions return non-zero if the
data has been read, or zero if it is missing. The parameters to the
png_get_<chunk> are set directly if they are simple data types, or a
pointer into the info_ptr is returned for any complex types.
png_get_<chunk> are set directly if they are simple data types, or a pointer
into the info_ptr is returned for any complex types.
png_get_PLTE(png_ptr, info_ptr, &palette,
&num_palette);
@ -1742,10 +1742,10 @@ values of the pixels:
PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels
stored in a PNG image have been "scaled" or "shifted" up to the next
higher possible bit depth (e.g. from 5 bits/sample in the range [0,31]
to 8 bits/sample in the range [0, 255]). However, it is also possible
to convert the PNG pixel data back to the original bit depth of the
image. This call reduces the pixels back down to the original bit depth:
higher possible bit depth (e.g. from 5 bits/sample in the range [0,31] to
8 bits/sample in the range [0, 255]). However, it is also possible to
convert the PNG pixel data back to the original bit depth of the image.
This call reduces the pixels back down to the original bit depth:
png_color_8p sig_bit;
@ -2158,11 +2158,12 @@ point to libpng-allocated storage with the following function:
This function may be safely called when the relevant storage has
already been freed, or has not yet been allocated, or was allocated
by the user and not by libpng, and will in those cases do nothing.
The "seq" parameter is ignored if only one item of the selected data
type, such as PLTE, is allowed. If "seq" is not -1, and multiple items
are allowed for the data type identified in the mask, such as text or
sPLT, only the n'th item in the structure is freed, where n is "seq".
by the user and not by libpng, and will in those
cases do nothing. The "seq" parameter is ignored if only one item
of the selected data type, such as PLTE, is allowed. If "seq" is not
-1, and multiple items are allowed for the data type identified in
the mask, such as text or sPLT, only the n'th item in the structure
is freed, where n is "seq".
The default behavior is only to free data that was allocated internally
by libpng. This can be changed, so that libpng will not free the data,
@ -2201,8 +2202,8 @@ if you transfer responsibility for free'ing text_ptr from libpng to your
application, your application must not separately free those members.
The png_free_data() function will turn off the "valid" flag for anything
it frees. If you need to turn the flag off for a chunk that was freed by
your application instead of by libpng, you can use
it frees. If you need to turn the flag off for a chunk that was freed by your
application instead of by libpng, you can use
png_set_invalid(png_ptr, info_ptr, mask);
mask - identifies the chunks to be made invalid,
@ -2512,8 +2513,8 @@ the filter method, for which the only valid values are 0 (as of the
July 1999 PNG specification, version 1.2) or 64 (if you are writing
a PNG datastream that is to be embedded in a MNG datastream). The third
parameter is a flag that indicates which filter type(s) are to be tested
for each scanline. See the PNG specification for details on the specific
filter types.
for each scanline. See the PNG specification for details on the specific filter
types.
/* turn on or off filtering, and/or choose
@ -2931,10 +2932,10 @@ this with a call to png_write_info().
Note that there is one transformation you may need to do before
png_write_info(). In PNG files, the alpha channel in an image is the
level of opacity. If your data is supplied as a level of transparency,
you can invert the alpha channel before you write it, so that 0 is
fully transparent and 255 (in 8-bit or paletted images) or 65535
(in 16-bit images) is fully opaque, with
level of opacity. If your data is supplied as a level of
transparency, you can invert the alpha channel before you write it, so
that 0 is fully transparent and 255 (in 8-bit or paletted images) or
65535 (in 16-bit images) is fully opaque, with
png_set_invert_alpha(png_ptr);
@ -3121,13 +3122,14 @@ a single row_pointer instead of an array of row_pointers:
png_write_row(png_ptr, row_pointer);
When the file is interlaced, things can get a good deal more complicated.
The only currently (as of the PNG Specification version 1.2, dated July
1999) defined interlacing scheme for PNG files is the "Adam7" interlace
scheme, that breaks down an image into seven smaller images of varying
size. libpng will build these images for you, or you can do them
yourself. If you want to build them yourself, see the PNG specification
for details of which pixels to write when.
When the file is interlaced, things can get a good deal more
complicated. The only currently (as of the PNG Specification
version 1.2, dated July 1999) defined interlacing scheme for PNG files
is the "Adam7" interlace scheme, that breaks down an
image into seven smaller images of varying size. libpng will build
these images for you, or you can do them yourself. If you want to
build them yourself, see the PNG specification for details of which
pixels to write when.
If you don't want libpng to handle the interlacing details, just
use png_set_interlace_handling() and call png_write_rows() the
@ -3139,17 +3141,17 @@ writing any rows:
number_of_passes =
png_set_interlace_handling(png_ptr);
This will return the number of passes needed. Currently, this is seven,
but may change if another interlace type is added.
This will return the number of passes needed. Currently, this
is seven, but may change if another interlace type is added.
Then write the complete image number_of_passes times.
png_write_rows(png_ptr, row_pointers,
number_of_rows);
As some of these rows are not used, and thus return immediately, you may
want to read about interlacing in the PNG specification, and only update
the rows that are actually used.
As some of these rows are not used, and thus return immediately,
you may want to read about interlacing in the PNG specification,
and only update the rows that are actually used.
.SS Finishing a sequential write
@ -3182,14 +3184,15 @@ point to libpng-allocated storage with the following function:
This function may be safely called when the relevant storage has
already been freed, or has not yet been allocated, or was allocated
by the user and not by libpng, and will in those cases do nothing.
The "seq" parameter is ignored if only one item of the selected data
type, such as PLTE, is allowed. If "seq" is not -1, and multiple items
are allowed for the data type identified in the mask, such as text or
sPLT, only the n'th item in the structure is freed, where n is "seq".
by the user and not by libpng, and will in those
cases do nothing. The "seq" parameter is ignored if only one item
of the selected data type, such as PLTE, is allowed. If "seq" is not
-1, and multiple items are allowed for the data type identified in
the mask, such as text or sPLT, only the n'th item in the structure
is freed, where n is "seq".
If you allocated data such as a palette that you passed in to libpng
with png_set_*, you must not free it until just before the call to
If you allocated data such as a palette that you passed
in to libpng with png_set_*, you must not free it until just before the call to
png_destroy_write_struct().
The default behavior is only to free data that was allocated internally
@ -3255,18 +3258,16 @@ goes through callbacks that are user-settable. The default routines are
in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change
these functions, call the appropriate png_set_*_fn() function.
Memory allocation is done through the functions png_malloc(), png_calloc(),
and png_free(). These currently just call the standard C functions.
png_calloc() calls png_malloc() and then png_memset() to clear the newly
allocated memory to zero. If your pointers can't access more then 64K
at a time, you will want to set MAXSEG_64K in zlib.h. Since it is
unlikely that the method of handling memory allocation on a platform
will change between applications, these functions must be modified in
the library at compile time. If you prefer to use a different method
of allocating and freeing data, you can use png_create_read_struct_2() or
png_create_write_struct_2() to register your own functions as described
above. These functions also provide a void pointer that can be retrieved
via
Memory allocation is done through the functions png_malloc()
and png_free(). These currently just call the standard C functions. If
your pointers can't access more then 64K at a time, you will want to set
MAXSEG_64K in zlib.h. Since it is unlikely that the method of handling
memory allocation on a platform will change between applications, these
functions must be modified in the library at compile time. If you prefer
to use a different method of allocating and freeing data, you can use
png_create_read_struct_2() or png_create_write_struct_2() to register
your own functions as described above.
These functions also provide a void pointer that can be retrieved via
mem_ptr=png_get_mem_ptr(png_ptr);
@ -3358,10 +3359,10 @@ The motivation behind using setjmp() and longjmp() is the C++ throw and
catch exception handling methods. This makes the code much easier to write,
as there is no need to check every return code of every function call.
However, there are some uncertainties about the status of local variables
after a longjmp, so the user may want to be careful about doing anything
after setjmp returns non-zero besides returning itself. Consult your
compiler documentation for more details. For an alternative approach, you
may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net).
after a longjmp, so the user may want to be careful about doing anything after
setjmp returns non-zero besides returning itself. Consult your compiler
documentation for more details. For an alternative approach, you may wish
to use the "cexcept" facility (see http://cexcept.sourceforge.net).
.SS Custom chunks
@ -3373,14 +3374,15 @@ library code itself needs to know about interactions between your
chunk and existing `intrinsic' chunks.
If you need to write a new intrinsic chunk, first read the PNG
specification. Acquire a first level of understanding of how it works.
Pay particular attention to the sections that describe chunk names,
and look at how other chunks were designed, so you can do things
similarly. Second, check out the sections of libpng that read and
write chunks. Try to find a chunk that is similar to yours and use
it as a template. More details can be found in the comments inside
the code. It is best to handle unknown chunks in a generic method,
via callback functions, instead of by modifying libpng functions.
specification. Acquire a first level of
understanding of how it works. Pay particular attention to the
sections that describe chunk names, and look at how other chunks were
designed, so you can do things similarly. Second, check out the
sections of libpng that read and write chunks. Try to find a chunk
that is similar to yours and use it as a template. More details can
be found in the comments inside the code. It is best to handle unknown
chunks in a generic method, via callback functions, instead of by
modifying libpng functions.
If you wish to write your own transformation for the data, look through
the part of the code that does the transformations, and check out some of
@ -3557,14 +3559,14 @@ off en masse with compiler directives that define
PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS,
or all four,
along with directives to turn on any of the capabilities that you do
want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable the extra
transformations but still leave the library fully capable of reading
and writing PNG files with all known public chunks. Use of the
PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive produces a library
that is incapable of reading or writing ancillary chunks. If you are
not using the progressive reading capability, you can turn that off
with PNG_NO_PROGRESSIVE_READ (don't confuse this with the INTERLACING
capability, which you'll still have).
want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable
the extra transformations but still leave the library fully capable of reading
and writing PNG files with all known public chunks
Use of the PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive
produces a library that is incapable of reading or writing ancillary chunks.
If you are not using the progressive reading capability, you can
turn that off with PNG_NO_PROGRESSIVE_READ (don't confuse
this with the INTERLACING capability, which you'll still have).
All the reading and writing specific code are in separate files, so the
linker should only grab the files it needs. However, if you want to
@ -3809,8 +3811,8 @@ will allocate for reading chunks was added, as a security measure.
The functions png_set_chunk_cache_max() and png_get_chunk_cache_max()
were added to the library.
We implemented support for I/O states by adding png_ptr member io_state
and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
We implemented support for I/O states. Added png_ptr member io_state, and
functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
The png_calloc() function was added and is used in place of
of "png_malloc(); png_memset();" except in the case in png_read_png()
@ -4006,7 +4008,8 @@ when there is only one macro being tested.
We do not use the TAB character for indentation in the C sources.
Other rules can be inferred by inspecting the libpng source.
Other rules can be inferred by inspecting the libpng
source.
.SH XIII. Y2K Compliance in libpng

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@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "November 12, 2009"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta96
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta97
(private functions)
.SH SYNOPSIS
\fB#include <png.h>\fP

6
png.c
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@ -16,7 +16,7 @@
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_4_0beta96 Your_png_h_is_not_version_1_4_0beta96;
typedef version_1_4_0beta97 Your_png_h_is_not_version_1_4_0beta97;
/* Version information for C files. This had better match the version
* string defined in png.h.
@ -547,13 +547,13 @@ png_get_copyright(png_structp png_ptr)
#else
#ifdef __STDC__
return ((png_charp) PNG_STRING_NEWLINE \
"libpng version 1.4.0beta96 - November 12, 2009" PNG_STRING_NEWLINE \
"libpng version 1.4.0beta97 - November 12, 2009" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2009 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE);
#else
return ((png_charp) "libpng version 1.4.0beta96 - November 12, 2009\
return ((png_charp) "libpng version 1.4.0beta97 - November 12, 2009\
Copyright (c) 1998-2009 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");

18
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.4.0beta96 - November 12, 2009
* libpng version 1.4.0beta97 - November 12, 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.)
@ -11,7 +11,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.4.0beta96 - November 12, 2009: Glenn
* libpng versions 0.97, January 1998, through 1.4.0beta97 - November 12, 2009: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -131,7 +131,7 @@
* 1.4.0beta15-36 14 10400 14.so.0.0[.0]
* 1.4.0beta37-87 14 10400 14.so.14.0[.0]
* 1.4.0rc01 14 10400 14.so.14.0[.0]
* 1.4.0beta88-96 14 10400 14.so.14.0[.0]
* 1.4.0beta88-97 14 10400 14.so.14.0[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -163,7 +163,7 @@
*
* This code is released under the libpng license.
*
* libpng versions 1.2.6, August 15, 2004, through 1.4.0beta96, November 12, 2009, are
* libpng versions 1.2.6, August 15, 2004, through 1.4.0beta97, November 12, 2009, are
* Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@ -281,7 +281,7 @@
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.4.0beta96 are Y2K compliant. It is my belief that earlier
* upward through 1.4.0beta97 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
@ -337,9 +337,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.4.0beta96"
#define PNG_LIBPNG_VER_STRING "1.4.0beta97"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.4.0beta96 - November 12, 2009\n"
" libpng version 1.4.0beta97 - November 12, 2009\n"
#define PNG_LIBPNG_VER_SONUM 14
#define PNG_LIBPNG_VER_DLLNUM 14
@ -352,7 +352,7 @@
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
*/
#define PNG_LIBPNG_VER_BUILD 96
#define PNG_LIBPNG_VER_BUILD 97
/* Release Status */
#define PNG_LIBPNG_BUILD_ALPHA 1
@ -1333,7 +1333,7 @@ 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_4_0beta96;
typedef png_structp version_1_4_0beta97;
typedef png_struct FAR * FAR * png_structpp;

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@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.4.0beta96 - November 12, 2009
* libpng version 1.4.0beta97 - November 12, 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)

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@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng
*
* libpng version 1.4.0beta96 - November 12, 2009
* libpng version 1.4.0beta97 - November 12, 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)

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@ -1619,4 +1619,4 @@ main(int argc, char *argv[])
}
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_4_0beta96 your_png_h_is_not_version_1_4_0beta96;
typedef version_1_4_0beta97 your_png_h_is_not_version_1_4_0beta97;

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@ -226,7 +226,7 @@
COPY_PHASE_STRIP = NO;
DYLIB_COMPATIBILITY_VERSION = 14;
DYLIB_CURRENT_VERSION = 14;
FRAMEWORK_VERSION = 1.4.0beta96;
FRAMEWORK_VERSION = 1.4.0beta97;
GCC_PRECOMPILE_PREFIX_HEADER = NO;
GCC_PREFIX_HEADER = "";
INFOPLIST_FILE = Info.plist;
@ -244,7 +244,7 @@
buildSettings = {
DYLIB_COMPATIBILITY_VERSION = 14;
DYLIB_CURRENT_VERSION = 14;
FRAMEWORK_VERSION = 1.4.0beta96;
FRAMEWORK_VERSION = 1.4.0beta97;
GCC_PRECOMPILE_PREFIX_HEADER = NO;
GCC_PREFIX_HEADER = "";
INFOPLIST_FILE = Info.plist;

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@ -11,7 +11,7 @@
# Modeled after libxml-config.
version=1.4.0beta96
version=1.4.0beta97
prefix=""
libdir=""
libs=""

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@ -5,6 +5,6 @@ includedir=@includedir@/libpng14
Name: libpng
Description: Loads and saves PNG files
Version: 1.4.0beta96
Version: 1.4.0beta97
Libs: -L${libdir} -lpng14
Cflags: -I${includedir}

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@ -11,7 +11,7 @@
# Library name:
LIBNAME=libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -11,7 +11,7 @@
# Library name:
LIBNAME=libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -23,7 +23,7 @@ LN_SF = ln -f -s
LIBNAME=libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local

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@ -11,7 +11,7 @@
# Library name:
LIBNAME=libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -68,7 +68,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng14
PNGMAJ = 14
CYGDLL = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(CYGDLL).dll

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@ -22,7 +22,7 @@ ZLIBINC=../zlib
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -8,7 +8,7 @@
# Library name:
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng14

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@ -16,7 +16,7 @@
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -21,7 +21,7 @@ ZLIBINC=/opt/zlib/include
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -11,7 +11,7 @@
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -21,7 +21,7 @@ ZLIBINC=/opt/zlib/include
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -10,7 +10,7 @@
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -68,7 +68,7 @@ CFLAGS= -DPNG_CONFIGURE_LIBPNG $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC
LIBNAME = libpng14
PNGMAJ = 14
MINGDLL = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=libpng$(MINGDLL).dll

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@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng14
LIB= png14
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.4.0beta96
SHLIB_MINOR= 1.4.0beta97
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

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@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng
LIB= png
SHLIB_MAJOR= 3
SHLIB_MINOR= 1.4.0beta96
SHLIB_MINOR= 1.4.0beta97
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

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@ -10,7 +10,7 @@
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -11,7 +11,7 @@ LIBDIR= ${PREFIX}/lib
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.4.0beta96
SHLIB_MINOR= 1.4.0beta97
LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \

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@ -12,7 +12,7 @@
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -9,7 +9,7 @@
# Library name:
LIBNAME=libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -9,7 +9,7 @@
# Library name:
LIBNAME=libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -11,7 +11,7 @@
# Library name:
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng14

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@ -11,7 +11,7 @@
# Library name:
LIBNAME = libpng14
PNGMAJ = 14
PNGMIN = 1.4.0beta96
PNGMIN = 1.4.0beta97
PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names:

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@ -15,7 +15,7 @@ LIBRARY lpngce
png_get_int_32
EXPORTS
;Version 1.4.0beta96
;Version 1.4.0beta97
png_build_grayscale_palette @1
; png_check_sig @2
png_chunk_error @3

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@ -2,7 +2,7 @@
; PNG.LIB module definition file for OS/2
;----------------------------------------
; Version 1.4.0beta96
; Version 1.4.0beta97
LIBRARY PNG
DESCRIPTION "PNG image compression library for OS/2"

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@ -5,7 +5,7 @@
LIBRARY
EXPORTS
;Version 1.4.0beta96
;Version 1.4.0beta97
png_build_grayscale_palette
png_chunk_error
png_chunk_warning