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libfreerdp-codec: improve YUV to RGB color conversion

This commit is contained in:
Marc-André Moreau 2014-09-05 20:16:56 -04:00
parent f14b0e0195
commit 5f37e768f0
1 changed files with 7 additions and 7 deletions
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14
libfreerdp/codec/h264.c
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@ -37,16 +37,16 @@ static INLINE BYTE clip(int x)
static INLINE UINT32 YUV_to_RGB(BYTE Y, BYTE U, BYTE V)
{
int C, D, E;
BYTE R, G, B;
int Yp, Up, Vp;
C = Y;
D = U - 128;
E = V - 128;
Yp = Y * 256;
Up = U - 128;
Vp = V - 128;
R = clip(( 256 * C + 403 * E + 128) >> 8);
G = clip(( 256 * C - 48 * D - 120 * E + 128) >> 8);
B = clip(( 256 * C + 475 * D + 128) >> 8);
R = clip((Yp + (403 * Vp)) >> 8);
G = clip((Yp - (48 * Up) - (120 * Vp)) >> 8);
B = clip((Yp + (475 * Up)) >> 8);
return RGB32(R, G, B);
}