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[libpng15] Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h

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Glenn Randers-Pehrson 2015-06-10 07:14:50 -05:00
parent d522ff063f
commit 32751e6a20
2 changed files with 5 additions and 23 deletions
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18
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 1.5.23beta02, June 1, 2015 * libpng version 1.5.23beta02, June 10, 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 1.5.23beta02, June 1, 2015: Glenn * libpng versions 0.97, January 1998, through 1.5.23beta02, June 10, 2015: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -241,7 +241,7 @@
* *
* 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 1.5.23beta02, June 1, 2015, are * libpng versions 1.2.6, August 15, 2004, through 1.5.23beta02, June 10, 2015, are
* Copyright (c) 2004, 2006-2015 Glenn Randers-Pehrson, and are * Copyright (c) 2004, 2006-2015 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:
@ -353,7 +353,7 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* June 1, 2015 * June 10, 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.
@ -422,7 +422,7 @@
/* 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 "1.5.23beta02" #define PNG_LIBPNG_VER_STRING "1.5.23beta02"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.5.23beta02 - June 1, 2015\n" " libpng version 1.5.23beta02 - June 10, 2015\n"
#define PNG_LIBPNG_VER_SONUM 15 #define PNG_LIBPNG_VER_SONUM 15
#define PNG_LIBPNG_VER_DLLNUM 15 #define PNG_LIBPNG_VER_DLLNUM 15
@ -1682,14 +1682,6 @@ PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
filter_weights, png_const_fixed_point_p filter_costs)) filter_weights, png_const_fixed_point_p filter_costs))
#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ #endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */
/* Heuristic used for row filter selection. These defines should NOT be
* changed.
*/
#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 */
#ifdef PNG_WRITE_SUPPORTED #ifdef PNG_WRITE_SUPPORTED
/* Set the library compression level. Currently, valid values range from /* Set the library compression level. Currently, valid values range from
* 0 - 9, corresponding directly to the zlib compression levels 0 - 9 * 0 - 9, corresponding directly to the zlib compression levels 0 - 9

10
pngstruct.h
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@ -236,16 +236,6 @@ struct png_struct_def
png_uint_16p hist; /* histogram */ png_uint_16p hist; /* histogram */
#endif #endif
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
png_byte heuristic_method; /* heuristic for row filter selection */
png_byte num_prev_filters; /* number of weights for previous rows */
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 */
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED #ifdef PNG_TIME_RFC1123_SUPPORTED
/* This is going to be unused in libpng16 and removed from libpng17 */ /* This is going to be unused in libpng16 and removed from libpng17 */
char time_buffer[29]; /* String to hold RFC 1123 time text */ char time_buffer[29]; /* String to hold RFC 1123 time text */