static inline void RENAME(bgr24ToY)(uint8_t *dst, uint8_t *src, long width) { #ifdef HAVE_MMX asm volatile( "mov %2, %%"REG_a" \n\t" "movq "MANGLE(bgr2YCoeff)", %%mm6 \n\t" "movq "MANGLE(w1111)", %%mm5 \n\t" "pxor %%mm7, %%mm7 \n\t" "lea (%%"REG_a", %%"REG_a", 2), %%"REG_d"\n\t" ASMALIGN(4) "1: \n\t" PREFETCH" 64(%0, %%"REG_d") \n\t" "movd (%0, %%"REG_d"), %%mm0 \n\t" "movd 3(%0, %%"REG_d"), %%mm1 \n\t" "punpcklbw %%mm7, %%mm0 \n\t" "punpcklbw %%mm7, %%mm1 \n\t" "movd 6(%0, %%"REG_d"), %%mm2 \n\t" "movd 9(%0, %%"REG_d"), %%mm3 \n\t" "punpcklbw %%mm7, %%mm2 \n\t" "punpcklbw %%mm7, %%mm3 \n\t" "pmaddwd %%mm6, %%mm0 \n\t" "pmaddwd %%mm6, %%mm1 \n\t" "pmaddwd %%mm6, %%mm2 \n\t" "pmaddwd %%mm6, %%mm3 \n\t" #ifndef FAST_BGR2YV12 "psrad $8, %%mm0 \n\t" "psrad $8, %%mm1 \n\t" "psrad $8, %%mm2 \n\t" "psrad $8, %%mm3 \n\t" #endif "packssdw %%mm1, %%mm0 \n\t" "packssdw %%mm3, %%mm2 \n\t" "pmaddwd %%mm5, %%mm0 \n\t" "pmaddwd %%mm5, %%mm2 \n\t" "packssdw %%mm2, %%mm0 \n\t" "psraw $7, %%mm0 \n\t" "movd 12(%0, %%"REG_d"), %%mm4 \n\t" "movd 15(%0, %%"REG_d"), %%mm1 \n\t" "punpcklbw %%mm7, %%mm4 \n\t" "punpcklbw %%mm7, %%mm1 \n\t" "movd 18(%0, %%"REG_d"), %%mm2 \n\t" "movd 21(%0, %%"REG_d"), %%mm3 \n\t" "punpcklbw %%mm7, %%mm2 \n\t" "punpcklbw %%mm7, %%mm3 \n\t" "pmaddwd %%mm6, %%mm4 \n\t" "pmaddwd %%mm6, %%mm1 \n\t" "pmaddwd %%mm6, %%mm2 \n\t" "pmaddwd %%mm6, %%mm3 \n\t" #ifndef FAST_BGR2YV12 "psrad $8, %%mm4 \n\t" "psrad $8, %%mm1 \n\t" "psrad $8, %%mm2 \n\t" "psrad $8, %%mm3 \n\t" #endif "packssdw %%mm1, %%mm4 \n\t" "packssdw %%mm3, %%mm2 \n\t" "pmaddwd %%mm5, %%mm4 \n\t" "pmaddwd %%mm5, %%mm2 \n\t" "add $24, %%"REG_d" \n\t" "packssdw %%mm2, %%mm4 \n\t" "psraw $7, %%mm4 \n\t" "packuswb %%mm4, %%mm0 \n\t" "paddusb "MANGLE(bgr2YOffset)", %%mm0 \n\t" "movq %%mm0, (%1, %%"REG_a") \n\t" "add $8, %%"REG_a" \n\t" " js 1b \n\t" : : "r" (src+width*3), "r" (dst+width), "g" (-width) : "%"REG_a, "%"REG_d ); #else int i; for(i=0; i<width; i++) { int b= src[i*3+0]; int g= src[i*3+1]; int r= src[i*3+2]; dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)) )>>RGB2YUV_SHIFT); } #endif }