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fic: Simplify alpha blending

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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Derek Buitenhuis 2014-04-22 16:42:11 -04:00
parent b0bdc2a712
commit e299cb2cd3
1 changed files with 1 additions and 1 deletions
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2
libavcodec/fic.c
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@ -195,7 +195,7 @@ static av_always_inline void fic_alpha_blend(uint8_t *dst, uint8_t *src,
int i;
for (i = 0; i < size; i++)
dst[i] = (dst[i] * (256 - alpha[i]) + src[i] * alpha[i]) >> 8;
dst[i] += ((src[i] - dst[i]) * alpha[i]) >> 8;
}
static void fic_draw_cursor(AVCodecContext *avctx, int cur_x, int cur_y)