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| author | Liang Qi <liang.qi@theqtcompany.com> | 2016-01-26 11:27:37 +0000 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2016-01-26 11:27:37 +0000 |
| commit | 0a1af55a9b69f7fd58dbce43a0d4c1faf0143838 (patch) | |
| tree | 26da168e740734d168be37803abec2f8739b213d /src/3rdparty/libpng/pngstruct.h | |
| parent | b8fb0ee999d32401157be8d86e5a03185aadbb9e (diff) | |
| parent | 158a3a4159bdc5a49caecd63e021dacbc06cf23c (diff) | |
Merge "Merge remote-tracking branch 'origin/5.6' into dev" into refs/staging/dev
Diffstat (limited to 'src/3rdparty/libpng/pngstruct.h')
| -rw-r--r-- | src/3rdparty/libpng/pngstruct.h | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/src/3rdparty/libpng/pngstruct.h b/src/3rdparty/libpng/pngstruct.h index 8420d09972..c8c0e46e8b 100644 --- a/src/3rdparty/libpng/pngstruct.h +++ b/src/3rdparty/libpng/pngstruct.h @@ -1,8 +1,8 @@ /* pngstruct.h - header file for PNG reference library * - * Last changed in libpng 1.6.1 [March 28, 2013] - * Copyright (c) 1998-2013 Glenn Randers-Pehrson + * Last changed in libpng 1.6.18 [July 23, 2015] + * Copyright (c) 1998-2015 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.) * @@ -219,16 +219,18 @@ struct png_struct_def png_uint_32 row_number; /* current row in interlace pass */ png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */ png_bytep prev_row; /* buffer to save previous (unfiltered) row. - * This is a pointer into big_prev_row + * While reading this is a pointer into + * big_prev_row; while writing it is separately + * allocated if needed. */ png_bytep row_buf; /* buffer to save current (unfiltered) row. - * This is a pointer into big_row_buf + * While reading, this is a pointer into + * big_row_buf; while writing it is separately + * allocated. */ -#ifdef PNG_WRITE_SUPPORTED - png_bytep sub_row; /* buffer to save "sub" row when filtering */ - png_bytep up_row; /* buffer to save "up" row when filtering */ - png_bytep avg_row; /* buffer to save "avg" row when filtering */ - png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ +#ifdef PNG_WRITE_FILTER_SUPPORTED + png_bytep try_row; /* buffer to save trial row when filtering */ + png_bytep tst_row; /* buffer to save best trial row when filtering */ #endif png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */ @@ -346,17 +348,7 @@ struct png_struct_def png_bytep quantize_index; /* index translation for palette files */ #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 - - /* Options */ +/* Options */ #ifdef PNG_SET_OPTION_SUPPORTED png_byte options; /* On/off state (up to 4 options) */ #endif |