static inline void RENAME(rgb32to24)(const uint8_t *src,uint8_t *dst,long src_size) { uint8_t *dest = dst; const uint8_t *s = src; const uint8_t *end; #ifdef HAVE_MMX const uint8_t *mm_end; #endif end = s + src_size; #ifdef HAVE_MMX __asm __volatile(PREFETCH" %0"::"m"(*s):"memory"); mm_end = end - 31; while(s < mm_end) { __asm __volatile( PREFETCH" 32%1\n\t" "movq %1, %%mm0\n\t" "movq 8%1, %%mm1\n\t" "movq 16%1, %%mm4\n\t" "movq 24%1, %%mm5\n\t" "movq %%mm0, %%mm2\n\t" "movq %%mm1, %%mm3\n\t" "movq %%mm4, %%mm6\n\t" "movq %%mm5, %%mm7\n\t" "psrlq $8, %%mm2\n\t" "psrlq $8, %%mm3\n\t" "psrlq $8, %%mm6\n\t" "psrlq $8, %%mm7\n\t" "pand %2, %%mm0\n\t" "pand %2, %%mm1\n\t" "pand %2, %%mm4\n\t" "pand %2, %%mm5\n\t" "pand %3, %%mm2\n\t" "pand %3, %%mm3\n\t" "pand %3, %%mm6\n\t" "pand %3, %%mm7\n\t" "por %%mm2, %%mm0\n\t" "por %%mm3, %%mm1\n\t" "por %%mm6, %%mm4\n\t" "por %%mm7, %%mm5\n\t" "movq %%mm1, %%mm2\n\t" "movq %%mm4, %%mm3\n\t" "psllq $48, %%mm2\n\t" "psllq $32, %%mm3\n\t" "pand %4, %%mm2\n\t" "pand %5, %%mm3\n\t" "por %%mm2, %%mm0\n\t" "psrlq $16, %%mm1\n\t" "psrlq $32, %%mm4\n\t" "psllq $16, %%mm5\n\t" "por %%mm3, %%mm1\n\t" "pand %6, %%mm5\n\t" "por %%mm5, %%mm4\n\t" MOVNTQ" %%mm0, %0\n\t" MOVNTQ" %%mm1, 8%0\n\t" MOVNTQ" %%mm4, 16%0" :"=m"(*dest) :"m"(*s),"m"(mask24l), "m"(mask24h),"m"(mask24hh),"m"(mask24hhh),"m"(mask24hhhh) :"memory"); dest += 24; s += 32; } __asm __volatile(SFENCE:::"memory"); __asm __volatile(EMMS:::"memory"); #endif while(s < end) { #ifdef WORDS_BIGENDIAN /* RGB32 (= A,B,G,R) -> RGB24 (= R,G,B) */ s++; dest[2] = *s++; dest[1] = *s++; dest[0] = *s++; dest += 3; #else *dest++ = *s++; *dest++ = *s++; *dest++ = *s++; s++; #endif } }