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[libpng17] Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h

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Glenn Randers-Pehrson 2015-06-10 07:02:36 -05:00
parent 24382d838c
commit 8ffa92dc25
4 changed files with 7 additions and 23 deletions
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1
ANNOUNCE
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@ -846,6 +846,7 @@ Version 1.7.0beta64 [June 10, 2015]
unsigned char in contrib/tools/png-fix-itxt.c). To use the "secure"
file handling, define PNG_USE_MKSTEMP, otherwise "tmpfile()" will
be used.
Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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1
CHANGES
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@ -5141,6 +5141,7 @@ Version 1.7.0beta64 [June 10, 2015]
unsigned char in contrib/tools/png-fix-itxt.c). To use the "secure"
file handling, define PNG_USE_MKSTEMP, otherwise "tmpfile()" will
be used.
Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

18
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.7.0beta64, June 6, 2015
* libpng version 1.7.0beta64, June 10, 2015
*
* Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -12,7 +12,7 @@
* 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 1.7.0beta64, June 6, 2015: Glenn
* libpng versions 0.97, January 1998, through 1.7.0beta64, June 10, 2015: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -248,7 +248,7 @@
*
* This code is released under the libpng license.
*
* libpng versions 1.2.6, August 15, 2004, through 1.7.0beta64, June 6, 2015, are
* libpng versions 1.2.6, August 15, 2004, through 1.7.0beta64, June 10, 2015, are
* Copyright (c) 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:
@ -360,7 +360,7 @@
* Y2K compliance in libpng:
* =========================
*
* June 6, 2015
* June 10, 2015
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
@ -430,7 +430,7 @@
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.7.0beta64"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.7.0beta64 - June 6, 2015\n"
" libpng version 1.7.0beta64 - June 10, 2015\n"
#define PNG_LIBPNG_VER_SONUM 17
#define PNG_LIBPNG_VER_DLLNUM 17
@ -1757,14 +1757,6 @@ PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
png_const_fixed_point_p filter_costs) PNG_DEPRECATED)
#endif /* WRITE_WEIGHTED_FILTER */
/* Heuristic used for row filter selection. These defines should NOT be
* changed. As of libpng-1.7.0beta62, these are no longer used.
*/
#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */
#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */
#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */
#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */
/* Set the library compression level. Currently, valid values range from
* 0 - 9, corresponding directly to the zlib compression levels 0 - 9
* (0 - no compression, 9 - "maximal" compression). Note that tests have

10
pngstruct.h
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@ -307,16 +307,6 @@ struct png_struct_def
png_uint_32 flush_rows; /* number of rows written since last flush */
#endif
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
png_bytep prev_filters; /* filter type(s) of previous row(s) */
png_uint_16p filter_weights; /* weight(s) for previous line(s) */
png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */
png_uint_16p filter_costs; /* relative filter calculation cost */
png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */
png_byte heuristic_method; /* heuristic for row filter selection */
png_byte num_prev_filters; /* number of weights for previous rows */
#endif
#ifdef PNG_WRITE_SUPPORTED
png_byte usr_bit_depth; /* bit depth of users row */
png_byte usr_channels; /* channels at start of write */