static void RENAME(extract_odd2avg)(const uint8_t *src0, const uint8_t *src1, uint8_t *dst0, uint8_t *dst1, x86_reg count) { dst0 += count; dst1 += count; src0 += 4*count; src1 += 4*count; count= - count; #ifdef PAVGB if(count <= -8) { count += 7; __asm__ volatile( "pcmpeqw %%mm7, %%mm7 \n\t" "psrlw $8, %%mm7 \n\t" "1: \n\t" "movq -28(%1, %0, 4), %%mm0 \n\t" "movq -20(%1, %0, 4), %%mm1 \n\t" "movq -12(%1, %0, 4), %%mm2 \n\t" "movq -4(%1, %0, 4), %%mm3 \n\t" PAVGB" -28(%2, %0, 4), %%mm0 \n\t" PAVGB" -20(%2, %0, 4), %%mm1 \n\t" PAVGB" -12(%2, %0, 4), %%mm2 \n\t" PAVGB" - 4(%2, %0, 4), %%mm3 \n\t" "psrlw $8, %%mm0 \n\t" "psrlw $8, %%mm1 \n\t" "psrlw $8, %%mm2 \n\t" "psrlw $8, %%mm3 \n\t" "packuswb %%mm1, %%mm0 \n\t" "packuswb %%mm3, %%mm2 \n\t" "movq %%mm0, %%mm1 \n\t" "movq %%mm2, %%mm3 \n\t" "psrlw $8, %%mm0 \n\t" "psrlw $8, %%mm2 \n\t" "pand %%mm7, %%mm1 \n\t" "pand %%mm7, %%mm3 \n\t" "packuswb %%mm2, %%mm0 \n\t" "packuswb %%mm3, %%mm1 \n\t" MOVNTQ" %%mm0,- 7(%4, %0) \n\t" MOVNTQ" %%mm1,- 7(%3, %0) \n\t" "add $8, %0 \n\t" " js 1b \n\t" : "+r"(count) : "r"(src0), "r"(src1), "r"(dst0), "r"(dst1) ); count -= 7; } #endif src0++; src1++; while(count<0) { dst0[count]= (src0[4*count+0]+src1[4*count+0])>>1; dst1[count]= (src0[4*count+2]+src1[4*count+2])>>1; count++; } }