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[libpng14] Reformat LICENSE, png.h, libpng.3 and libpng*.txt to make the

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license text identical and the same format as in libpng15 and libpng16.
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Glenn Randers-Pehrson 2015-07-13 08:48:22 -05:00
parent dda61188e9
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34
LICENSE
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@ -10,20 +10,14 @@ 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 1.4.17beta01, May 9, 2015, are libpng versions 1.0.7, July 1, 2000, through 1.4.17beta01, July 13, 2015, are
Copyright (c) 2004, 2006-2015 Glenn Randers-Pehrson, and are Copyright (c) 2000-2002, 2004, 2006-2015 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
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6 distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors with the following individuals added to the list of Contributing Authors:
Simon-Pierre Cadieux Simon-Pierre Cadieux
Eric S. Raymond Eric S. Raymond
Cosmin Truta
Gilles Vollant Gilles Vollant
and with the following additions to the disclaimer: and with the following additions to the disclaimer:
@ -36,17 +30,17 @@ and with the following additions to the disclaimer:
the user. the user.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are Copyright (c) 1998-2000 Glenn Randers-Pehrson, and are distributed according
distributed according to the same disclaimer and license as libpng-0.96, to the same disclaimer and license as libpng-0.96, with the following
with the following individuals added to the list of Contributing Authors: individuals added to the list of Contributing Authors:
Tom Lane Tom Lane
Glenn Randers-Pehrson Glenn Randers-Pehrson
Willem van Schaik Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May 1997, are libpng versions 0.89, June 1996, through 0.96, May 1997, are
Copyright (c) 1996, 1997 Andreas Dilger Copyright (c) 1996-1997 Andreas Dilger, and are
Distributed according to the same disclaimer and license as libpng-0.88, distributed according to the same disclaimer and license as libpng-0.88,
with the following individuals added to the list of Contributing Authors: with the following individuals added to the list of Contributing Authors:
John Bowler John Bowler
@ -57,7 +51,7 @@ with the following individuals added to the list of Contributing Authors:
Tom Tanner Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January 1996, are libpng versions 0.5, May 1995, through 0.88, January 1996, are
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
For the purposes of this copyright and license, "Contributing Authors" For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals: is defined as the following set of individuals:
@ -94,7 +88,6 @@ supporting the PNG file format in commercial products. If you use this
source code in a product, acknowledgment is not required but would be source code in a product, acknowledgment is not required but would be
appreciated. appreciated.
A "png_get_copyright" function is available, for convenient use in "about" A "png_get_copyright" function is available, for convenient use in "about"
boxes and the like: boxes and the like:
@ -103,9 +96,10 @@ boxes and the like:
Also, the PNG logo (in PNG format, of course) is supplied in the Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
certification mark of the Open Source Initiative. a certification mark of the Open Source Initiative. OSI has not addressed
the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
May 9, 2015 July 13, 2015

6
libpng-1.4.17beta01.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 1.4.17beta01 - May 9, 2015 libpng version 1.4.17beta01 - July 13, 2015
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) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 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 1.4.17beta01 - May 9, 2015 libpng versions 0.97, January 1998, through 1.4.17beta01 - July 13, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -3316,7 +3316,7 @@ Other rules can be inferred by inspecting the libpng source.
XIII. Y2K Compliance in libpng XIII. Y2K Compliance in libpng
May 9, 2015 July 13, 2015
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.

65
libpng.3
View File

@ -1,4 +1,4 @@
.TH LIBPNG 3 "May 9, 2015" .TH LIBPNG 3 "July 13, 2015"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.17beta01 libpng \- Portable Network Graphics (PNG) Reference Library 1.4.17beta01
.SH SYNOPSIS .SH SYNOPSIS
@ -442,7 +442,7 @@ Following is a copy of the libpng-manual.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 1.4.17beta01 - May 9, 2015 libpng version 1.4.17beta01 - July 13, 2015
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) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -453,7 +453,7 @@ libpng.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.4.17beta01 - May 9, 2015 libpng versions 0.97, January 1998, through 1.4.17beta01 - July 13, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -3758,7 +3758,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIII. Y2K Compliance in libpng .SH XIII. Y2K Compliance in libpng
May 9, 2015 July 13, 2015
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.
@ -4041,7 +4041,7 @@ 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 1.4.17beta01 - May 9, 2015: Libpng version 1.4.17beta01 - July 13, 2015:
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).
@ -4064,44 +4064,37 @@ 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 1.4.17beta01, May 9, 2015, are libpng versions 1.0.7, July 1, 2000, through 1.4.17beta01, July 13, 2015, are
Copyright (c) 2004,2006-2015 Glenn Randers-Pehrson, and are Copyright (c) 2000-2002, 2004, 2006-2015 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
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6 distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors with the following individuals added to the list of Contributing Authors:
Simon-Pierre Cadieux Simon-Pierre Cadieux
Eric S. Raymond Eric S. Raymond
Cosmin Truta
Gilles Vollant Gilles Vollant
and with the following additions to the disclaimer: and with the following additions to the disclaimer:
There is no warranty against interference with your There is no warranty against interference with your enjoyment of the
enjoyment of the library or against infringement. library or against infringement. There is no warranty that our
There is no warranty that our efforts or the library efforts or the library will fulfill any of your particular purposes
will fulfill any of your particular purposes or needs. or needs. This library is provided with all faults, and the entire
This library is provided with all faults, and the entire risk of satisfactory quality, performance, accuracy, and effort is with
risk of satisfactory quality, performance, accuracy, and the user.
effort is with the user.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
Copyright (c) 1998, 1999 Glenn Randers-Pehrson Copyright (c) 1998-2000 Glenn Randers-Pehrson, and are distributed according
Distributed according to the same disclaimer and license as libpng-0.96, to the same disclaimer and license as libpng-0.96, with the following
with the following individuals added to the list of Contributing Authors: individuals added to the list of Contributing Authors:
Tom Lane Tom Lane
Glenn Randers-Pehrson Glenn Randers-Pehrson
Willem van Schaik Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May 1997, are libpng versions 0.89, June 1996, through 0.96, May 1997, are
Copyright (c) 1996, 1997 Andreas Dilger Copyright (c) 1996-1997 Andreas Dilger, and are
Distributed according to the same disclaimer and license as libpng-0.88, distributed according to the same disclaimer and license as libpng-0.88,
with the following individuals added to the list of Contributing Authors: with the following individuals added to the list of Contributing Authors:
John Bowler John Bowler
@ -4112,7 +4105,7 @@ with the following individuals added to the list of Contributing Authors:
Tom Tanner Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January 1996, are libpng versions 0.5, May 1995, through 0.88, January 1996, are
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
For the purposes of this copyright and license, "Contributing Authors" For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals: is defined as the following set of individuals:
@ -4137,11 +4130,11 @@ to the following restrictions:
1. The origin of this source code must not be misrepresented. 1. The origin of this source code must not be misrepresented.
2. Altered versions must be plainly marked as such and 2. Altered versions must be plainly marked as such and must not
must not be misrepresented as being the original source. be misrepresented as being the original source.
3. This Copyright notice may not be removed or altered from 3. This Copyright notice may not be removed or altered from any
any source or altered source distribution. source or altered source distribution.
The Contributing Authors and Group 42, Inc. specifically permit, without The Contributing Authors and Group 42, Inc. specifically permit, without
fee, and encourage the use of this source code as a component to fee, and encourage the use of this source code as a component to
@ -4149,7 +4142,6 @@ supporting the PNG file format in commercial products. If you use this
source code in a product, acknowledgment is not required but would be source code in a product, acknowledgment is not required but would be
appreciated. appreciated.
A "png_get_copyright" function is available, for convenient use in "about" A "png_get_copyright" function is available, for convenient use in "about"
boxes and the like: boxes and the like:
@ -4158,12 +4150,13 @@ boxes and the like:
Also, the PNG logo (in PNG format, of course) is supplied in the Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
certification mark of the Open Source Initiative. a certification mark of the Open Source Initiative. OSI has not addressed
the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
May 9, 2015 July 13, 2015
.\" end of man page .\" end of man page

96
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 1.4.17beta01, May 9, 2015 * libpng version 1.4.17beta01, July 13, 2015
* *
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -12,7 +12,7 @@
* 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 1.4.17beta01, May 9, 2015: Glenn * libpng versions 0.97, January 1998, through 1.4.17beta01, July 13, 2015: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -215,20 +215,14 @@
* *
* 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 1.4.17beta01, May 9, 2015, are * libpng versions 1.0.7, July 1, 2000, through 1.4.17beta01, July 13, 2015, are
* Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are * Copyright (c) 2000-2002, 2004, 2006-2015 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:
*
* Cosmin Truta
*
* libpng versions 1.0.7, July 1, 2000, through 1.2.5, October 3, 2002, are
* Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.0.6 * distributed according to the same disclaimer and license as libpng-1.0.6
* with the following individuals added to the list of Contributing Authors: * with the following individuals added to the list of Contributing Authors:
* *
* Simon-Pierre Cadieux * Simon-Pierre Cadieux
* Eric S. Raymond * Eric S. Raymond
* Cosmin Truta
* Gilles Vollant * Gilles Vollant
* *
* and with the following additions to the disclaimer: * and with the following additions to the disclaimer:
@ -241,17 +235,17 @@
* the user. * the user.
* *
* libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are * libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson, and are * Copyright (c) 1998-2000 Glenn Randers-Pehrson, and are distributed according
* distributed according to the same disclaimer and license as libpng-0.96, * to the same disclaimer and license as libpng-0.96, with the following
* with the following individuals added to the list of Contributing Authors: * individuals added to the list of Contributing Authors:
* *
* Tom Lane * Tom Lane
* Glenn Randers-Pehrson * Glenn Randers-Pehrson
* Willem van Schaik * Willem van Schaik
* *
* libpng versions 0.89, June 1996, through 0.96, May 1997, are * libpng versions 0.89, June 1996, through 0.96, May 1997, are
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger, and are
* Distributed according to the same disclaimer and license as libpng-0.88, * distributed according to the same disclaimer and license as libpng-0.88,
* with the following individuals added to the list of Contributing Authors: * with the following individuals added to the list of Contributing Authors:
* *
* John Bowler * John Bowler
@ -262,7 +256,7 @@
* Tom Tanner * Tom Tanner
* *
* libpng versions 0.5, May 1995, through 0.88, January 1996, are * libpng versions 0.5, May 1995, through 0.88, January 1996, are
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* For the purposes of this copyright and license, "Contributing Authors" * For the purposes of this copyright and license, "Contributing Authors"
* is defined as the following set of individuals: * is defined as the following set of individuals:
@ -287,11 +281,11 @@
* *
* 1. The origin of this source code must not be misrepresented. * 1. The origin of this source code must not be misrepresented.
* *
* 2. Altered versions must be plainly marked as such and * 2. Altered versions must be plainly marked as such and must not
* must not be misrepresented as being the original source. * be misrepresented as being the original source.
* *
* 3. This Copyright notice may not be removed or altered from * 3. This Copyright notice may not be removed or altered from any
* any source or altered source distribution. * source or altered source distribution.
* *
* The Contributing Authors and Group 42, Inc. specifically permit, without * The Contributing Authors and Group 42, Inc. specifically permit, without
* fee, and encourage the use of this source code as a component to * fee, and encourage the use of this source code as a component to
@ -311,8 +305,9 @@
*/ */
/* /*
* Libpng is OSI Certified Open Source Software. OSI Certified is a * Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
* certification mark of the Open Source Initiative. * a certification mark of the Open Source Initiative. OSI has not addressed
* the additional disclaimers inserted at version 1.0.7.
*/ */
/* /*
@ -327,7 +322,7 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* May 9, 2015 * July 13, 2015
* *
* 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.
@ -391,7 +386,7 @@
/* 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 "1.4.17beta01" #define PNG_LIBPNG_VER_STRING "1.4.17beta01"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.4.17beta01 - May 9, 2015\n" " libpng version 1.4.17beta01 - July 13, 2015\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
@ -1389,23 +1384,6 @@ struct png_struct_def
png_uint_16p hist PNG_DEPSTRUCT; /* histogram */ png_uint_16p hist PNG_DEPSTRUCT; /* histogram */
#endif #endif
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
png_byte heuristic_method PNG_DEPSTRUCT; /* heuristic for row
filter selection */
png_byte num_prev_filters PNG_DEPSTRUCT; /* number of weights
for previous rows */
png_bytep prev_filters PNG_DEPSTRUCT; /* filter type(s) of
previous row(s) */
png_uint_16p filter_weights PNG_DEPSTRUCT; /* weight(s) for previous
line(s) */
png_uint_16p inv_filter_weights PNG_DEPSTRUCT; /* 1/weight(s) for
previous line(s) */
png_uint_16p filter_costs PNG_DEPSTRUCT; /* relative filter
calculation cost */
png_uint_16p inv_filter_costs PNG_DEPSTRUCT; /* 1/relative filter
calculation cost */
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED #ifdef PNG_TIME_RFC1123_SUPPORTED
png_charp time_buffer PNG_DEPSTRUCT; /* String to hold RFC 1123 time text */ png_charp time_buffer PNG_DEPSTRUCT; /* String to hold RFC 1123 time text */
#endif #endif
@ -1909,35 +1887,7 @@ PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method,
#define PNG_FILTER_VALUE_PAETH 4 #define PNG_FILTER_VALUE_PAETH 4
#define PNG_FILTER_VALUE_LAST 5 #define PNG_FILTER_VALUE_LAST 5
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* EXPERIMENTAL */ #ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* DEPRECATED */
/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_
* defines, either the default (minimum-sum-of-absolute-differences), or
* the experimental method (weighted-minimum-sum-of-absolute-differences).
*
* Weights are factors >= 1.0, indicating how important it is to keep the
* filter type consistent between rows. Larger numbers mean the current
* filter is that many times as likely to be the same as the "num_weights"
* previous filters. This is cumulative for each previous row with a weight.
* There needs to be "num_weights" values in "filter_weights", or it can be
* NULL if the weights aren't being specified. Weights have no influence on
* the selection of the first row filter. Well chosen weights can (in theory)
* improve the compression for a given image.
*
* Costs are factors >= 1.0 indicating the relative decoding costs of a
* filter type. Higher costs indicate more decoding expense, and are
* therefore less likely to be selected over a filter with lower computational
* costs. There needs to be a value in "filter_costs" for each valid filter
* type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't
* setting the costs. Costs try to improve the speed of decompression without
* unduly increasing the compressed image size.
*
* A negative weight or cost indicates the default value is to be used, and
* values in the range [0.0, 1.0) indicate the value is to remain unchanged.
* The default values for both weights and costs are currently 1.0, but may
* change if good general weighting/cost heuristics can be found. If both
* the weights and costs are set to 1.0, this degenerates the WEIGHTED method
* to the UNWEIGHTED method, but with added encoding time/computation.
*/
#ifdef PNG_FLOATING_POINT_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED
PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr,
int heuristic_method, int num_weights, png_doublep filter_weights, int heuristic_method, int num_weights, png_doublep filter_weights,
@ -1945,9 +1895,7 @@ PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr,
#endif #endif
#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ #endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */
/* Heuristic used for row filter selection. These defines should NOT be /* The following are no longer used and will be removed from libpng-1.7: */
* changed.
*/
#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */ #define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */
#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */ #define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */
#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */ #define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */