[devel] Imported from libpng-1.4.0beta67.tar
This commit is contained in:
Glenn Randers-Pehrson
parent
237d1fba11
commit
bc7156d089
5
ANNOUNCE
5
ANNOUNCE
@ -1,5 +1,5 @@
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Libpng 1.4.0beta67 - June 29, 2009
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Libpng 1.4.0beta67 - July 6, 2009
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This is not intended to be a public release. It will be replaced
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within a few weeks by a public version or by another test version.
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@ -494,9 +494,10 @@ version 1.4.0beta65 [June 26, 2009]
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version 1.4.0beta66 [June 27, 2009]
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Refer to the libpng license instead of the libpng license in each file.
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version 1.4.0beta67 [June 29, 2009]
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version 1.4.0beta67 [July 6, 2009]
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Relocated INVERT_ALPHA within png_read_png() and png_write_png().
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Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
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Added an "xcode" project to the projects directory (Alam Arias).
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version 1.4.0betaN [future]
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Build shared libraries with -lz and sometimes -lm.
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3
CHANGES
3
CHANGES
@ -2171,9 +2171,10 @@ version 1.4.0beta65 [June 26, 2009]
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version 1.4.0beta66 [June 27, 2009]
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Refer to the libpng license instead of the libpng license in each file.
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version 1.4.0beta67 [June 29, 2009]
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version 1.4.0beta67 [July 6, 2009]
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Relocated INVERT_ALPHA within png_read_png() and png_write_png().
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Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
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Added an "xcode" project to the projects directory (Alam Arias).
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version 1.4.0betaN [future]
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Build shared libraries with -lz and sometimes -lm.
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2
INSTALL
2
INSTALL
@ -1,5 +1,5 @@
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Installing libpng version 1.4.0beta67 - June 29, 2009
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Installing libpng version 1.4.0beta67 - July 6, 2009
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On Unix/Linux and similar systems, you can simply type
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4
LICENSE
4
LICENSE
@ -10,7 +10,7 @@ this sentence.
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This code is released under the libpng license.
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libpng versions 1.2.6, August 15, 2004, through 1.4.0beta67, June 29, 2009, are
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libpng versions 1.2.6, August 15, 2004, through 1.4.0beta67, July 6, 2009, are
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Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
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distributed according to the same disclaimer and license as libpng-1.2.5
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with the following individual added to the list of Contributing Authors
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@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
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Glenn Randers-Pehrson
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glennrp at users.sourceforge.net
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June 29, 2009
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July 6, 2009
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2
README
2
README
@ -1,4 +1,4 @@
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README for libpng version 1.4.0beta67 - June 29, 2009 (shared library 14.0)
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README for libpng version 1.4.0beta67 - July 6, 2009 (shared library 14.0)
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See the note about version numbers near the top of png.h
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See INSTALL for instructions on how to install libpng.
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5
TODO
5
TODO
@ -19,8 +19,13 @@ Better filter selection
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Histogram creation.
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Text conversion between different code pages (Latin-1 -> Mac and DOS).
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Build gamma tables using fixed point (and do away with floating point entirely).
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Avoid building gamma tables whenever possible.
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Use greater precision when changing to linear gamma for compositing against
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background and doing rgb-to-gray transformation.
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Investigate pre-incremented loop counters and other loop constructions.
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Add interpolated method of handling interlacing.
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Provide for conditional compilation of 16-bit support (except for the
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initial stripping down to 8-bits when reading a 16-bit PNG datastream).
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Switch to the simpler zlib (zlib/libpng) license if legally possible.
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*/
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@ -2,7 +2,7 @@
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#if 0 /* in case someone actually tries to compile this */
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/* example.c - an example of using libpng
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* This file has been placed in the public domain by the authors.
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* Maintained 1998-2009 Glenn Randers-Pehrson
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* Maintained 1996, 1997 Andreas Dilger)
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@ -1,6 +1,6 @@
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libpng.txt - A description on how to use and modify libpng
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libpng version 1.4.0beta67 - June 29, 2009
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libpng version 1.4.0beta67 - July 6, 2009
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Updated and distributed by Glenn Randers-Pehrson
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<glennrp at users.sourceforge.net>
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Copyright (c) 1998-2009 Glenn Randers-Pehrson
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@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng
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Based on:
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libpng versions 0.97, January 1998, through 1.4.0beta67 - June 29, 2009
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libpng versions 0.97, January 1998, through 1.4.0beta67 - July 6, 2009
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Updated and distributed by Glenn Randers-Pehrson
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Copyright (c) 1998-2009 Glenn Randers-Pehrson
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@ -2966,6 +2966,8 @@ Some obsolete/deprecated macros and functions have been removed.
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The PNG_1_0_X and PNG_1_2_X macros were eliminated.
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The PNG_LEGACY_SUPPORTED macro was eliminated.
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Many WIN32_WCE #ifdefs were removed.
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PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been
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@ -3033,6 +3035,12 @@ We removed the trailing '.' from the warning and error messages.
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We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level
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input transforms.
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The call to png_do_chop() in pngrtran.c, which reduces 16-bit input
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files to 8-bit bit depth, was relocated ahead of the building
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of gamma tables. This allows us to build 8-bit tables instead
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of 16-bit tables, when only 8-bit tables are needed. This avoids
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wasting some computing resources when the application has called
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the png_set_strip_16() function and encounters a 16-bit PNG file.
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X. Detecting libpng
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@ -3154,7 +3162,7 @@ source.
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XIII. Y2K Compliance in libpng
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June 29, 2009
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July 6, 2009
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Since the PNG Development group is an ad-hoc body, we can't make
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an official declaration.
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22
libpng.3
22
libpng.3
@ -1,4 +1,4 @@
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.TH LIBPNG 3 "June 29, 2009"
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.TH LIBPNG 3 "July 6, 2009"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta67
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.SH SYNOPSIS
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@ -809,7 +809,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
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.SH LIBPNG.TXT
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libpng.txt - A description on how to use and modify libpng
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libpng version 1.4.0beta67 - June 29, 2009
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libpng version 1.4.0beta67 - July 6, 2009
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Updated and distributed by Glenn Randers-Pehrson
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<glennrp at users.sourceforge.net>
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Copyright (c) 1998-2009 Glenn Randers-Pehrson
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@ -820,7 +820,7 @@ libpng.txt - A description on how to use and modify libpng
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Based on:
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libpng versions 0.97, January 1998, through 1.4.0beta67 - June 29, 2009
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libpng versions 0.97, January 1998, through 1.4.0beta67 - July 6, 2009
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Updated and distributed by Glenn Randers-Pehrson
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Copyright (c) 1998-2009 Glenn Randers-Pehrson
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@ -3775,6 +3775,8 @@ Some obsolete/deprecated macros and functions have been removed.
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The PNG_1_0_X and PNG_1_2_X macros were eliminated.
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The PNG_LEGACY_SUPPORTED macro was eliminated.
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Many WIN32_WCE #ifdefs were removed.
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PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been
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@ -3842,6 +3844,12 @@ We removed the trailing '.' from the warning and error messages.
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We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level
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input transforms.
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The call to png_do_chop() in pngrtran.c, which reduces 16-bit input
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files to 8-bit bit depth, was relocated ahead of the building
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of gamma tables. This allows us to build 8-bit tables instead
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of 16-bit tables, when only 8-bit tables are needed. This avoids
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wasting some computing resources when the application has called
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the png_set_strip_16() function and encounters a 16-bit PNG file.
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.SH X. Detecting libpng
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@ -3963,7 +3971,7 @@ source.
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.SH XIII. Y2K Compliance in libpng
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June 29, 2009
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July 6, 2009
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Since the PNG Development group is an ad-hoc body, we can't make
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an official declaration.
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@ -4193,7 +4201,7 @@ possible without all of you.
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Thanks to Frank J. T. Wojcik for helping with the documentation.
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Libpng version 1.4.0beta67 - June 29, 2009:
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Libpng version 1.4.0beta67 - July 6, 2009:
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Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
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Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
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@ -4216,7 +4224,7 @@ this sentence.
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This code is released under the libpng license.
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libpng versions 1.2.6, August 15, 2004, through 1.4.0beta67, June 29, 2009, are
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libpng versions 1.2.6, August 15, 2004, through 1.4.0beta67, July 6, 2009, are
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Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
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distributed according to the same disclaimer and license as libpng-1.2.5
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with the following individual added to the list of Contributing Authors
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@ -4315,7 +4323,7 @@ certification mark of the Open Source Initiative.
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Glenn Randers-Pehrson
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glennrp at users.sourceforge.net
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June 29, 2009
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July 6, 2009
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.\" end of man page
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@ -1,4 +1,4 @@
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.TH LIBPNGPF 3 "June 29, 2009"
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.TH LIBPNGPF 3 "July 6, 2009"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta67
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(private functions)
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2
png.5
2
png.5
@ -1,4 +1,4 @@
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.TH PNG 5 "June 29, 2009"
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.TH PNG 5 "July 6, 2009"
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.SH NAME
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png \- Portable Network Graphics (PNG) format
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.SH DESCRIPTION
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6
png.c
6
png.c
@ -1,7 +1,7 @@
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/* png.c - location for general purpose libpng functions
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@ -652,13 +652,13 @@ png_get_copyright(png_structp png_ptr)
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#else
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#ifdef __STDC__
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return ((png_charp) PNG_STRING_NEWLINE \
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"libpng version x 1.4.0beta67 - June 29, 2009" PNG_STRING_NEWLINE \
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"libpng version x 1.4.0beta67 - July 6, 2009" PNG_STRING_NEWLINE \
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"Copyright (c) 1998-2009 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
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"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
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"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
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PNG_STRING_NEWLINE);
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#else
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return ((png_charp) "libpng version 1.4.0beta67 - June 29, 2009\
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return ((png_charp) "libpng version 1.4.0beta67 - July 6, 2009\
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Copyright (c) 1998-2009 Glenn Randers-Pehrson\
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Copyright (c) 1996-1997 Andreas Dilger\
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Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
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8
png.h
8
png.h
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.4.0beta67 - June 29, 2009
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* libpng version 1.4.0beta67 - July 6, 2009
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@ -11,7 +11,7 @@
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* Authors and maintainers:
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* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
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* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.4.0beta67 - June 29, 2009: Glenn
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* libpng versions 0.97, January 1998, through 1.4.0beta67 - July 6, 2009: Glenn
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* See also "Contributing Authors", below.
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*
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* Note about libpng version numbers:
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@ -161,7 +161,7 @@
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*
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* This code is released under the libpng license.
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*
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* libpng versions 1.2.6, August 15, 2004, through 1.4.0beta67, June 29, 2009, are
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* libpng versions 1.2.6, August 15, 2004, through 1.4.0beta67, July 6, 2009, are
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* Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
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* distributed according to the same disclaimer and license as libpng-1.2.5
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* with the following individual added to the list of Contributing Authors:
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@ -337,7 +337,7 @@
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.4.0beta67"
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#define PNG_HEADER_VERSION_STRING \
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" libpng version 1.4.0beta67 - June 29, 2009\n"
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" libpng version 1.4.0beta67 - July 6, 2009\n"
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#define PNG_LIBPNG_VER_SONUM 14
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#define PNG_LIBPNG_VER_DLLNUM 14
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@ -1,7 +1,7 @@
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/* pngconf.h - machine configurable file for libpng
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*
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* libpng version 1.4.0beta67 - June 29, 2009
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* libpng version 1.4.0beta67 - July 6, 2009
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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@ -1,7 +1,7 @@
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/* pngerror.c - stub functions for i/o and memory allocation
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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2
pngget.c
2
pngget.c
@ -1,7 +1,7 @@
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/* pngget.c - retrieval of values from info struct
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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2
pngmem.c
2
pngmem.c
@ -1,7 +1,7 @@
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/* pngmem.c - stub functions for memory allocation
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
|
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@ -1,7 +1,7 @@
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/* pngpread.c - read a png file in push mode
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@ -1,7 +1,7 @@
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/* pngpriv.h - private declarations for use inside libpng
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*
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* libpng version 1.4.0beta67 - June 29, 2009
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* libpng version 1.4.0beta67 - July 6, 2009
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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@ -1,7 +1,7 @@
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/* pngread.c - read a PNG file
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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2
pngrio.c
2
pngrio.c
@ -1,7 +1,7 @@
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/* pngrio.c - functions for data input
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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31
pngrtran.c
31
pngrtran.c
@ -1,7 +1,7 @@
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/* pngrtran.c - transforms the data in a row for PNG readers
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*
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* Last changed in libpng 1.4.0 [June 29, 2009]
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* Last changed in libpng 1.4.0 [July 6, 2009]
|
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
|
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@ -3952,6 +3952,35 @@ static PNG_CONST int png_gamma_shift[] =
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* tables, we don't make a full table if we are reducing to 8-bit in
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* the future. Note also how the gamma_16 tables are segmented so that
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* we don't need to allocate > 64K chunks for a full 16-bit table.
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*
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* See the PNG extensions document for an integer algorithm for creating
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* the gamma tables. Maybe we will implement that here someday.
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*
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* We should only reach this point if
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*
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* the file_gamma is known (i.e., the gAMA or sRGB chunk is present,
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* or the application has provided a file_gamma)
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*
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* AND
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||||
* {
|
||||
* the screen_gamma is known
|
||||
*
|
||||
* OR
|
||||
*
|
||||
* RGB_to_gray transformation is being performed
|
||||
* }
|
||||
*
|
||||
* AND
|
||||
* {
|
||||
* the screen_gamma is different from the reciprocal of the
|
||||
* file_gamma by more than the specified threshold
|
||||
*
|
||||
* OR
|
||||
*
|
||||
* a background color has been specified and the file_gamma
|
||||
* and screen_gamma are not 1.0, within the specified threshold.
|
||||
* }
|
||||
*
|
||||
*/
|
||||
void /* PRIVATE */
|
||||
png_build_gamma_table(png_structp png_ptr)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngrutil.c - utilities to read a PNG file
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
2
pngset.c
2
pngset.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngset.c - storage of image information into info struct
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngtest.c - a simple test program to test libpng
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
2
pngwio.c
2
pngwio.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwio.c - functions for data output
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwrite.c - general routines to write a PNG file
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwtran.c - transforms the data in a row for PNG writers
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwutil.c - utilities to write a PNG file
|
||||
*
|
||||
* Last changed in libpng 1.4.0 [June 29, 2009]
|
||||
* Last changed in libpng 1.4.0 [July 6, 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.)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user