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[libpng15] Added PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED macro, on by default.

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Glenn Randers-Pehrson
2015-02-18 13:00:09 -06:00
parent a117d4eacc
commit 014440e6cd
6 changed files with 55 additions and 37 deletions
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2
pngwrite.c
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@@ -1396,6 +1396,7 @@ png_set_filter_heuristics_fixed(png_structp png_ptr, int heuristic_method,
#endif /* FIXED_POINT */
#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */
#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
void PNGAPI
png_set_compression_level(png_structp png_ptr, int level)
{
@@ -1474,6 +1475,7 @@ png_set_compression_method(png_structp png_ptr, int method)
png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_METHOD;
png_ptr->zlib_method = method;
}
#endif /* WRITE_CUSTOMIZE_COMPRESSION */
/* The following were added to libpng-1.5.4 */
#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED