diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/video_out/yuv2rgb_mmx.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/video_out/yuv2rgb_mmx.c b/src/video_out/yuv2rgb_mmx.c index 9cbb675bb..c0c362bfd 100644 --- a/src/video_out/yuv2rgb_mmx.c +++ b/src/video_out/yuv2rgb_mmx.c @@ -119,6 +119,7 @@ static inline void mmx_yuv2rgb (uint8_t * py, uint8_t * pu, uint8_t * pv, mmx_cs { static mmx_t mmx_80w = {0x0080008000800080ULL}; static mmx_t mmx_00ffw = {0x00ff00ff00ff00ffULL}; + static mmx_t mmx_0002w = {0x0002000200020002ULL}; movq_m2r (*py, mm6); // mm6 = Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 pxor_r2r (mm4, mm4); // mm4 = 0 @@ -133,10 +134,11 @@ static inline void mmx_yuv2rgb (uint8_t * py, uint8_t * pu, uint8_t * pv, mmx_cs psrlw_i2r (8, mm7); // mm7 = Y7 Y5 Y3 Y1 movd_m2r (*pv, mm1); // mm1 = 00 00 00 00 v3 v2 v1 v0 - psllw_i2r (3, mm6); // promote precision + psllw_i2r (5, mm6); // promote precision pmulhw_m2r (csc->Y_coeff, mm6); // mm6 = luma_rgb even - psllw_i2r (3, mm7); // promote precision + paddsw_m2r (mmx_0002w, mm6); // +0.5 for later rounding + psllw_i2r (5, mm7); // promote precision punpcklbw_r2r (mm4, mm0); // mm0 = u3 u2 u1 u0 @@ -144,12 +146,13 @@ static inline void mmx_yuv2rgb (uint8_t * py, uint8_t * pu, uint8_t * pv, mmx_cs punpcklbw_r2r (mm4, mm1); // mm1 = v3 v2 v1 v0 pmulhw_m2r (csc->Y_coeff, mm7); // mm7 = luma_rgb odd - psllw_i2r (3, mm0); // promote precision + paddsw_m2r (mmx_0002w, mm7); // +0.5 for later rounding + psllw_i2r (5, mm0); // promote precision psubsw_m2r (mmx_80w, mm1); // v -= 128 movq_r2r (mm0, mm2); // mm2 = u3 u2 u1 u0 - psllw_i2r (3, mm1); // promote precision + psllw_i2r (5, mm1); // promote precision movq_r2r (mm1, mm4); // mm4 = v3 v2 v1 v0 @@ -168,12 +171,14 @@ static inline void mmx_yuv2rgb (uint8_t * py, uint8_t * pu, uint8_t * pv, mmx_cs paddsw_r2r (mm6, mm0); // mm0 = B6 B4 B2 B0 paddsw_r2r (mm7, mm3); // mm3 = B7 B5 B3 B1 + psraw_i2r (2, mm0); // div round packuswb_r2r (mm0, mm0); // saturate to 0-255 pmulhw_m2r (csc->U_green, mm2); // mm2 = u * u_green + psraw_i2r (2, mm3); // div round packuswb_r2r (mm3, mm3); // saturate to 0-255 @@ -197,16 +202,20 @@ static inline void mmx_yuv2rgb (uint8_t * py, uint8_t * pu, uint8_t * pv, mmx_cs paddsw_r2r (mm6, mm2); // mm2 = G6 G4 G2 G0 + psraw_i2r (2, mm2); // div round packuswb_r2r (mm2, mm2); // saturate to 0-255 paddsw_r2r (mm6, mm1); // mm1 = R6 R4 R2 R0 + psraw_i2r (2, mm1); // div round packuswb_r2r (mm1, mm1); // saturate to 0-255 paddsw_r2r (mm7, mm4); // mm4 = R7 R5 R3 R1 + psraw_i2r (2, mm4); // div round packuswb_r2r (mm4, mm4); // saturate to 0-255 paddsw_r2r (mm7, mm5); // mm5 = G7 G5 G3 G1 + psraw_i2r (2, mm5); // div round packuswb_r2r (mm5, mm5); // saturate to 0-255 |