Searched refs:UNPREMULTIPLY_ALPHA (Results 1 - 1 of 1) sorted by relevance

/netgear-R7000-V1.0.7.12_1.2.5/ap/gpl/minidlna/ffmpeg-2.3.4/libavfilter/
H A Dvf_overlay.c359 #define UNPREMULTIPLY_ALPHA(x, y) ((((x) << 16) - ((x) << 9) + (x)) / ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x))) macro
410 alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d);
465 alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d);
537 alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d);

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