[devel] Bump to version libpng-1.5.0beta35

2010-07-24 08:22:59 -05:00 · 2010-07-24 08:22:59 -05:00 · 915bab5fc7
commit 915bab5fc7
parent 5fd46fb8f7
39 changed files with 54 additions and 54 deletions
--- a/2
+++ b/2
@ -1,5 +1,5 @@

-Installing libpng version 1.5.0beta35 - July 12, 2010
+Installing libpng version 1.5.0beta35 - July 24, 2010

 On Unix/Linux and similar systems, you can simply type

--- a/4
+++ b/4
@ -10,7 +10,7 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.5.0beta35, July 22, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.0beta35, July 24, 2010, are
 Copyright (c) 2004, 2006-2010 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
@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-July 22, 2010
+July 24, 2010
--- a/2
+++ b/2
@ -1,4 +1,4 @@
-README for libpng version 1.5.0beta35 - July 12, 2010 (shared library 15.0)
+README for libpng version 1.5.0beta35 - July 24, 2010 (shared library 15.0)
 See the note about version numbers near the top of png.h

 See INSTALL for instructions on how to install libpng.
--- a/example.c
+++ b/example.c
@ -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 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * This file has been placed in the public domain by the authors.
 * Maintained 1998-2010 Glenn Randers-Pehrson
 * Maintained 1996, 1997 Andreas Dilger)
--- a/libpng-1.5.0beta35.txt
+++ b/libpng-1.5.0beta35.txt
@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.5.0beta35 - July 22, 2010
+ libpng version 1.5.0beta35 - July 24, 2010
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
 Copyright (c) 1998-2010 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 1.5.0beta35 - July 22, 2010
+ libpng versions 0.97, January 1998, through 1.5.0beta35 - July 24, 2010
 Updated and distributed by Glenn Randers-Pehrson
 Copyright (c) 1998-2010 Glenn Randers-Pehrson

@ -3301,7 +3301,7 @@ Other rules can be inferred by inspecting the libpng source.

 XIII. Y2K Compliance in libpng

-July 22, 2010
+July 24, 2010

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
--- a/libpng.3
+++ b/libpng.3
@ -1,4 +1,4 @@
-.TH LIBPNG 3 "July 22, 2010"
+.TH LIBPNG 3 "July 24, 2010"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.0beta35
 .SH SYNOPSIS
@ -789,7 +789,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.5.0beta35 - July 22, 2010
+ libpng version 1.5.0beta35 - July 24, 2010
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
@ -800,7 +800,7 @@ libpng.txt - A description on how to use and modify libpng

 Based on:

- libpng versions 0.97, January 1998, through 1.5.0beta35 - July 22, 2010
+ libpng versions 0.97, January 1998, through 1.5.0beta35 - July 24, 2010
 Updated and distributed by Glenn Randers-Pehrson
 Copyright (c) 1998-2010 Glenn Randers-Pehrson

@ -4090,7 +4090,7 @@ Other rules can be inferred by inspecting the libpng source.

 .SH XIII. Y2K Compliance in libpng

-July 22, 2010
+July 24, 2010

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@ -4332,7 +4332,7 @@ possible without all of you.

 Thanks to Frank J. T. Wojcik for helping with the documentation.

-Libpng version 1.5.0beta35 - July 22, 2010:
+Libpng version 1.5.0beta35 - July 24, 2010:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).

@ -4355,7 +4355,7 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.5.0beta35, July 22, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.0beta35, July 24, 2010, 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
@ -4454,7 +4454,7 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-July 22, 2010
+July 24, 2010

 .\" end of man page

--- a/libpngpf.3
+++ b/libpngpf.3
@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "July 12, 2010"
+.TH LIBPNGPF 3 "July 24, 2010"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.0beta35
 (private functions)
--- a/png.5
+++ b/png.5
@ -1,4 +1,4 @@
-.TH PNG 5 "July 12, 2010"
+.TH PNG 5 "July 24, 2010"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
--- a/png.c
+++ b/png.c
@ -1,7 +1,7 @@

 /* png.c - location for general purpose libpng functions
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
@ -560,13 +560,13 @@ png_get_copyright(png_structp png_ptr)
 #else
 #  ifdef __STDC__
   return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.5.0beta35 - July 12, 2010" PNG_STRING_NEWLINE \
+     "libpng version 1.5.0beta35 - July 24, 2010" PNG_STRING_NEWLINE \
     "Copyright (c) 1998-2010 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 1.5.0beta35 - July 12, 2010\
+      return ((png_charp) "libpng version 1.5.0beta35 - July 24, 2010\
      Copyright (c) 1998-2010 Glenn Randers-Pehrson\
      Copyright (c) 1996-1997 Andreas Dilger\
      Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
--- a/png.h
+++ b/png.h
@ -1,7 +1,7 @@

 /* png.h - header file for PNG reference library
 *
- * libpng version 1.5.0beta35 - July 12, 2010
+ * libpng version 1.5.0beta35 - July 24, 2010
 * Copyright (c) 1998-2010 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 1.5.0beta35 - July 12, 2010: Glenn
+ *   libpng versions 0.97, January 1998, through 1.5.0beta35 - July 24, 2010: Glenn
 *   See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@ -172,7 +172,7 @@
 *
 * This code is released under the libpng license.
 *
- * libpng versions 1.2.6, August 15, 2004, through 1.5.0beta35, July 12, 2010, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.0beta35, July 24, 2010, are
 * Copyright (c) 2004, 2006-2010 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:
@ -284,7 +284,7 @@
 * Y2K compliance in libpng:
 * =========================
 *
- *    July 12, 2010
+ *    July 24, 2010
 *
 *    Since the PNG Development group is an ad-hoc body, we can't make
 *    an official declaration.
@ -348,7 +348,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.5.0beta35"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.5.0beta35 - July 12, 2010\n"
+     " libpng version 1.5.0beta35 - July 24, 2010\n"

 #define PNG_LIBPNG_VER_SONUM   15
 #define PNG_LIBPNG_VER_DLLNUM  15
--- a/pngdebug.h
+++ b/pngdebug.h
@ -5,7 +5,7 @@
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
- * Last changed in libpng version 1.5.0 - July 12, 2010
+ * Last changed in libpng version 1.5.0 - July 24, 2010
 *
 * This code is released under the libpng license.
 * For conditions of distribution and use, see the disclaimer
--- a/pngerror.c
+++ b/pngerror.c
@ -1,7 +1,7 @@

 /* pngerror.c - stub functions for i/o and memory allocation
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngget.c
+++ b/pngget.c
@ -1,7 +1,7 @@

 /* pngget.c - retrieval of values from info struct
 *
- * Last changed in libpng 1.4.1 [July 12, 2010]
+ * Last changed in libpng 1.4.1 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pnginfo.h
+++ b/pnginfo.h
@ -5,7 +5,7 @@
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
- * Last changed in libpng version 1.5.0 - July 12, 2010
+ * Last changed in libpng version 1.5.0 - July 24, 2010
 *
 * This code is released under the libpng license.
 * For conditions of distribution and use, see the disclaimer
--- a/pngmem.c
+++ b/pngmem.c
@ -1,7 +1,7 @@

 /* pngmem.c - stub functions for memory allocation
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngpread.c
+++ b/pngpread.c
@ -1,7 +1,7 @@

 /* pngpread.c - read a png file in push mode
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngpriv.h
+++ b/pngpriv.h
@ -1,7 +1,7 @@

 /* pngpriv.h - private declarations for use inside libpng
 *
- * libpng version 1.5.0beta35 - July 12, 2010
+ * libpng version 1.5.0beta35 - July 24, 2010
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngread.c
+++ b/pngread.c
@ -1,7 +1,7 @@

 /* pngread.c - read a PNG file
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngrio.c
+++ b/pngrio.c
@ -1,7 +1,7 @@

 /* pngrio.c - functions for data input
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngrtran.c
+++ b/pngrtran.c
@ -1,7 +1,7 @@

 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngrutil.c
+++ b/pngrutil.c
@ -1,7 +1,7 @@

 /* pngrutil.c - utilities to read a PNG file
 *
- * Last changed in libpng 1.4.1 [July 12, 2010]
+ * Last changed in libpng 1.4.1 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngset.c
+++ b/pngset.c
@ -1,7 +1,7 @@

 /* pngset.c - storage of image information into info struct
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngstruct.h
+++ b/pngstruct.h
@ -5,7 +5,7 @@
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
- * Last changed in libpng version 1.5.0 - July 12, 2010
+ * Last changed in libpng version 1.5.0 - July 24, 2010
 *
 * This code is released under the libpng license.
 * For conditions of distribution and use, see the disclaimer
--- a/pngtest.c
+++ b/pngtest.c
@ -1,7 +1,7 @@

 /* pngtest.c - a simple test program to test libpng
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngtrans.c
+++ b/pngtrans.c
@ -1,7 +1,7 @@

 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngwio.c
+++ b/pngwio.c
@ -1,7 +1,7 @@

 /* pngwio.c - functions for data output
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngwrite.c
+++ b/pngwrite.c
@ -1,7 +1,7 @@

 /* pngwrite.c - general routines to write a PNG file
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngwtran.c
+++ b/pngwtran.c
@ -1,7 +1,7 @@

 /* pngwtran.c - transforms the data in a row for PNG writers
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngwutil.c
+++ b/pngwutil.c
@ -1,7 +1,7 @@

 /* pngwutil.c - utilities to write a PNG file
 *
- * Last changed in libpng 1.5.0 [July 12, 2010]
+ * Last changed in libpng 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@ -1,7 +1,7 @@

 VisualStudio instructions

-libpng version 1.5.0beta35 - July 12, 2010
+libpng version 1.5.0beta35 - July 24, 2010

 Copyright (c) 1998-2010 Glenn Randers-Pehrson

--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@ -2,7 +2,7 @@
 <!--
 * zlib.props - location of zlib source and build
 *
- * libpng version 1.5.0beta35 - July 12, 2010
+ * libpng version 1.5.0beta35 - July 24, 2010
 *
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 *
--- a/scripts/README.txt
+++ b/scripts/README.txt
@ -1,5 +1,5 @@

-Makefiles for  libpng version 1.5.0beta35 - July 12, 2010
+Makefiles for  libpng version 1.5.0beta35 - July 24, 2010

 pnglibconf.h       =>  Stores configuration settings
 makefile.linux    =>  Linux/ELF makefile
--- a/scripts/options.awk
+++ b/scripts/options.awk
@ -1,7 +1,7 @@
 #!/bin/awk -f
 # scripts/options.awk - library build configuration control
 #
-# last changed in libpng version 1.5.0 - July 12, 2010
+# last changed in libpng version 1.5.0 - July 24, 2010
 #
 # Copyright (c) 1998-2010 Glenn Randers-Pehrson
 #
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@ -6,7 +6,7 @@
 #
 com pnglibconf.h - library build configuration
 com
-com libpng version PNGLIB_VERSION - last changed on July 12, 2010
+com libpng version PNGLIB_VERSION - last changed on July 24, 2010
 com
 com Copyright (c) 1998-2010 Glenn Randers-Pehrson
 com
--- a/scripts/pnglibconf.h
+++ b/scripts/pnglibconf.h
@ -1,7 +1,7 @@
 /* libpng-1.5.0beta35 STANDARD API DEFINITION */
 /* pnglibconf.h - library build configuration */

-/* last changed in libpng version 1.5.0 - July 12, 2010 */
+/* last changed in libpng version 1.5.0 - July 24, 2010 */

 /* Copyright (c) 1998-2010 Glenn Randers-Pehrson */

--- a/scripts/pngwin.dfn
+++ b/scripts/pngwin.dfn
@ -1,7 +1,7 @@

 /* pngwin.dfn - define format of pngwin.def
 *
- * Last changed in libpng version 1.5.0 [July 12, 2010]
+ * Last changed in libpng version 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 *
 * This code is released under the libpng license.
--- a/scripts/sym.dfn
+++ b/scripts/sym.dfn
@ -1,7 +1,7 @@

 /* sym.dfn - define format of libpng.sym
 *
- * Last changed in libpng version 1.5.0 [July 12, 2010]
+ * Last changed in libpng version 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 *
 * This code is released under the libpng license.
--- a/scripts/symbols.dfn
+++ b/scripts/symbols.dfn
@ -1,7 +1,7 @@

 /* symbols.dfn - find all exported symbols
 *
- * Last changed in libpng version 1.5.0 [July 12, 2010]
+ * Last changed in libpng version 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 *
 * This code is released under the libpng license.
--- a/scripts/vers.dfn
+++ b/scripts/vers.dfn
@ -1,7 +1,7 @@

 /* vers.dfn - define format of libpng.vers
 *
- * Last changed in libpng version 1.5.0 [July 12, 2010]
+ * Last changed in libpng version 1.5.0 [July 24, 2010]
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 *
 * This code is released under the libpng license.