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[libpng16] Support associated alpha in the simplified api

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Glenn Randers-Pehrson
2017-09-23 14:53:44 -05:00
parent 96333b6bea 95046512a4
commit 4b7635ce72
2 changed files with 13 additions and 1 deletions
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2
png.h
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@@ -2819,6 +2819,8 @@ typedef struct
# define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */
#endif
#define PNG_FORMAT_FLAG_ASSOCIATED_ALPHA 0x40U /* alpha channel is associated */
/* Commonly used formats have predefined macros.
*
* First the single byte (sRGB) formats: