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Add an isALPHA macro to check if pixel format has alpha channel

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@28747 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
sdrik 2009-02-27 22:23:20 +00:00
parent 255c11b745
commit f3ea1ffd7b
1 changed files with 7 additions and 0 deletions
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7
libswscale/swscale_internal.h
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@ -273,6 +273,13 @@ const char *sws_format_name(int format);
|| (x)==PIX_FMT_MONOBLACK \ || (x)==PIX_FMT_MONOBLACK \
|| (x)==PIX_FMT_MONOWHITE \ || (x)==PIX_FMT_MONOWHITE \
) )
#define isALPHA(x) ( \
(x)==PIX_FMT_BGR32 \
|| (x)==PIX_FMT_BGR32_1 \
|| (x)==PIX_FMT_RGB32 \
|| (x)==PIX_FMT_RGB32_1 \
|| (x)==PIX_FMT_YUVA420P \
)
static inline int fmt_depth(int fmt) static inline int fmt_depth(int fmt)
{ {