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[master] Added comment about the potential API incompatibility in

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png.h, libpng.3, and libpng-*.txt.
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Glenn Randers-Pehrson 2010-11-25 07:36:57 -06:00
parent e2d740ae04
commit 756f873a25
5 changed files with 31 additions and 19 deletions
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6
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.4.5beta07 - November 24, 2010 Libpng 1.4.5beta07 - November 25, 2010
This is not intended to be a public release. It will be replaced 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. within a few weeks by a public version or by another test version.
@ -46,7 +46,7 @@ version 1.4.5beta04 [November 8, 2010]
version 1.4.5rc01 [November 19, 2010] version 1.4.5rc01 [November 19, 2010]
No changes. No changes.
version 1.4.5beta05 [November 24, 2010] version 1.4.5beta05 [November 25, 2010]
Removed some extraneous parentheses that appeared in pngrutil.c of Removed some extraneous parentheses that appeared in pngrutil.c of
libpng-1.4.3beta01 libpng-1.4.3beta01
Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin) Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin)
@ -70,7 +70,7 @@ version 1.4.5beta06 [November 21, 2010]
with pngwio.c and pngwutil.c because the 'write' callback and zlib with pngwio.c and pngwutil.c because the 'write' callback and zlib
compression both fail to declare their input buffers with 'const'. compression both fail to declare their input buffers with 'const'.
version 1.4.5beta07 [November 24, 2010] version 1.4.5beta07 [November 25, 2010]
Reverted png_get_uint_16 macro to beta05 and added comment about the Reverted png_get_uint_16 macro to beta05 and added comment about the
potential API incompatibility. potential API incompatibility.

2
CHANGES
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@ -2722,7 +2722,7 @@ version 1.4.5beta06 [November 21, 2010]
with pngwio.c and pngwutil.c because the 'write' callback and zlib with pngwio.c and pngwutil.c because the 'write' callback and zlib
compression both fail to declare their input buffers with 'const'. compression both fail to declare their input buffers with 'const'.
version 1.4.5beta07 [November 24, 2010] version 1.4.5beta07 [November 25, 2010]
Reverted png_get_uint_16 macro to beta05 and added comment about the Reverted png_get_uint_16 macro to beta05 and added comment about the
potential API incompatibility. potential API incompatibility.

12
libpng-1.4.5beta07.txt
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@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.4.5beta07 - November 24, 2010 libpng version 1.4.5beta07 - November 25, 2010
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2010 Glenn Randers-Pehrson Copyright (c) 1998-2010 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.4.5beta07 - November 24, 2010 libpng versions 0.97, January 1998, through 1.4.5beta07 - November 25, 2010
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2010 Glenn Randers-Pehrson Copyright (c) 1998-2010 Glenn Randers-Pehrson
@ -3122,6 +3122,12 @@ deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
png_set_expand_gray_1_2_4_to_8() because the former function also png_set_expand_gray_1_2_4_to_8() because the former function also
expanded palette images. expanded palette images.
Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32
were added and are used by default instead of the corresponding
functions. Unfortunately,
from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
function) incorrectly returned a value of type png_uint_32.
We changed the prototype for png_malloc() from We changed the prototype for png_malloc() from
png_malloc(png_structp png_ptr, png_uint_32 size) png_malloc(png_structp png_ptr, png_uint_32 size)
to to
@ -3297,7 +3303,7 @@ Other rules can be inferred by inspecting the libpng source.
XIII. Y2K Compliance in libpng XIII. Y2K Compliance in libpng
November 24, 2010 November 25, 2010
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.

20
libpng.3
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@ -1,4 +1,4 @@
.TH LIBPNG 3 "November 24, 2010" .TH LIBPNG 3 "November 25, 2010"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.5beta07 libpng \- Portable Network Graphics (PNG) Reference Library 1.4.5beta07
.SH SYNOPSIS .SH SYNOPSIS
@ -785,7 +785,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.4.5beta07 - November 24, 2010 libpng version 1.4.5beta07 - November 25, 2010
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2010 Glenn Randers-Pehrson Copyright (c) 1998-2010 Glenn Randers-Pehrson
@ -796,7 +796,7 @@ libpng.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.4.5beta07 - November 24, 2010 libpng versions 0.97, January 1998, through 1.4.5beta07 - November 25, 2010
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2010 Glenn Randers-Pehrson Copyright (c) 1998-2010 Glenn Randers-Pehrson
@ -3907,6 +3907,12 @@ deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
png_set_expand_gray_1_2_4_to_8() because the former function also png_set_expand_gray_1_2_4_to_8() because the former function also
expanded palette images. expanded palette images.
Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32
were added and are used by default instead of the corresponding
functions. Unfortunately,
from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
function) incorrectly returned a value of type png_uint_32.
We changed the prototype for png_malloc() from We changed the prototype for png_malloc() from
png_malloc(png_structp png_ptr, png_uint_32 size) png_malloc(png_structp png_ptr, png_uint_32 size)
to to
@ -4082,7 +4088,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIII. Y2K Compliance in libpng .SH XIII. Y2K Compliance in libpng
November 24, 2010 November 25, 2010
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
@ -4333,7 +4339,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.4.5beta07 - November 24, 2010: Libpng version 1.4.5beta07 - November 25, 2010:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -4356,7 +4362,7 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.4.5beta07, November 24, 2010, are libpng versions 1.2.6, August 15, 2004, through 1.4.5beta07, November 25, 2010, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5 distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors with the following individual added to the list of Contributing Authors
@ -4455,7 +4461,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
November 24, 2010 November 25, 2010
.\" end of man page .\" end of man page

10
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.4.5beta07 - November 24, 2010 * libpng version 1.4.5beta07 - November 25, 2010
* Copyright (c) 1998-2010 Glenn Randers-Pehrson * Copyright (c) 1998-2010 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -11,7 +11,7 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.4.5beta07 - November 24, 2010: Glenn * libpng versions 0.97, January 1998, through 1.4.5beta07 - November 25, 2010: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -182,7 +182,7 @@
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* *
* libpng versions 1.2.6, August 15, 2004, through 1.4.5beta07, November 24, 2010, are * libpng versions 1.2.6, August 15, 2004, through 1.4.5beta07, November 25, 2010, are
* Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are * Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5 * distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors: * with the following individual added to the list of Contributing Authors:
@ -294,7 +294,7 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* November 24, 2010 * November 25, 2010
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
@ -358,7 +358,7 @@
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.4.5beta07" #define PNG_LIBPNG_VER_STRING "1.4.5beta07"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.4.5beta07 - November 24, 2010\n" " libpng version 1.4.5beta07 - November 25, 2010\n"
#define PNG_LIBPNG_VER_SONUM 14 #define PNG_LIBPNG_VER_SONUM 14
#define PNG_LIBPNG_VER_DLLNUM 14 #define PNG_LIBPNG_VER_DLLNUM 14