From: Michael Niedermayer Date: Wed, 31 Oct 2001 01:30:28 +0000 (+0000) Subject: c speedup X-Git-Tag: v0.5~18208 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=02a0a992cd7e7fc8c6992ead07e42ae8a0e2e415;p=platform%2Fupstream%2Flibav.git c speedup Originally committed as revision 2586 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc --- diff --git a/postproc/swscale.c b/postproc/swscale.c index d703c65..58fc837 100644 --- a/postproc/swscale.c +++ b/postproc/swscale.c @@ -34,6 +34,8 @@ Special versions: fast Y 1:1 scaling (no interpolation in y direction) TODO more intelligent missalignment avoidance for the horizontal scaler bicubic scaler +dither in C +change the distance of the u & v buffer */ #define ABS(a) ((a) > 0 ? (a) : (-(a))) @@ -518,7 +520,7 @@ static inline void yuv2yuv(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uin if(uvalpha != -1) { - for(i=0; i>1); i++) { ((uint8_t*)uDest)[i] = (uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19; ((uint8_t*)vDest)[i] = (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19; @@ -800,8 +802,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -822,8 +824,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -845,8 +847,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -869,8 +871,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1030,8 +1032,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1052,8 +1054,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1075,8 +1077,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1099,8 +1101,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; diff --git a/postproc/swscale_template.c b/postproc/swscale_template.c index d703c65..58fc837 100644 --- a/postproc/swscale_template.c +++ b/postproc/swscale_template.c @@ -34,6 +34,8 @@ Special versions: fast Y 1:1 scaling (no interpolation in y direction) TODO more intelligent missalignment avoidance for the horizontal scaler bicubic scaler +dither in C +change the distance of the u & v buffer */ #define ABS(a) ((a) > 0 ? (a) : (-(a))) @@ -518,7 +520,7 @@ static inline void yuv2yuv(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uin if(uvalpha != -1) { - for(i=0; i>1); i++) { ((uint8_t*)uDest)[i] = (uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19; ((uint8_t*)vDest)[i] = (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19; @@ -800,8 +802,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -822,8 +824,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -845,8 +847,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -869,8 +871,8 @@ FULL_YSCALEYUV2RGB // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)]; int Y2=yuvtab_2568[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19)]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1030,8 +1032,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1052,8 +1054,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1075,8 +1077,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U]; @@ -1099,8 +1101,8 @@ static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, ui // vertical linear interpolation && yuv2rgb in a single step: int Y1=yuvtab_2568[buf0[i]>>7]; int Y2=yuvtab_2568[buf0[i+1]>>7]; - int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19); - int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19); + int U=((uvbuf0[i>>1]*uvalpha1+uvbuf1[i>>1]*uvalpha)>>19); + int V=((uvbuf0[(i>>1)+2048]*uvalpha1+uvbuf1[(i>>1)+2048]*uvalpha)>>19); int Cb= yuvtab_40cf[U]; int Cg= yuvtab_1a1e[V] + yuvtab_0c92[U];