}
}
-/* TODO: MMX optimization */
void rgb32to24(uint8_t *src,uint8_t *dst,uint32_t src_size)
{
uint8_t *dest = dst;
uint8_t *s = src;
uint8_t *end;
+#ifdef HAVE_MMX
+ const uint64_t mask24l = 0x0000000000FFFFFFULL;
+ const uint64_t mask24h = 0x0000FFFFFF000000ULL;
+ uint8_t *mm_end;
+#endif
end = s + src_size;
+#ifdef HAVE_MMX
+ __asm __volatile(PREFETCH" %0\n\t"::"m"(*s):"memory");
+ mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
+ __asm __volatile(
+ "movq %0, %%mm7\n\t"
+ "movq %1, %%mm6\n\t"
+ ::"m"(mask24l),"m"(mask24h):"memory");
+ if(mm_end == end) mm_end -= MMREG_SIZE*2;
+ while(s < mm_end)
+ {
+ __asm __volatile(
+ PREFETCH" 32%1\n\t"
+ "movq %1, %%mm0\n\t"
+ "movq 8%1, %%mm1\n\t"
+ "movq %%mm0, %%mm2\n\t"
+ "movq %%mm1, %%mm3\n\t"
+ "psrlq $8, %%mm2\n\t"
+ "psrlq $8, %%mm3\n\t"
+ "pand %%mm7, %%mm0\n\t"
+ "pand %%mm7, %%mm1\n\t"
+ "pand %%mm6, %%mm2\n\t"
+ "pand %%mm6, %%mm3\n\t"
+ "por %%mm2, %%mm0\n\t"
+ "por %%mm3, %%mm1\n\t"
+ MOVNTQ" %%mm0, %0\n\t"
+ MOVNTQ" %%mm1, 6%0"
+ :"=m"(*dest)
+ :"m"(*s)
+ :"memory");
+ dest += 12;
+ s += 16;
+ }
+ __asm __volatile(SFENCE:::"memory");
+ __asm __volatile(EMMS:::"memory");
+#endif
while(s < end)
{
*dest++ = *s++;
}
}
+/* TODO: 3DNOW, MMX2 optimization */
+
/* Original by Strepto/Astral
ported to gcc & bugfixed : A'rpi */
void rgb15to16(uint8_t *src,uint8_t *dst,uint32_t src_size)
}
}
-/* TODO: MMX optimization */
void rgb32to24(uint8_t *src,uint8_t *dst,uint32_t src_size)
{
uint8_t *dest = dst;
uint8_t *s = src;
uint8_t *end;
+#ifdef HAVE_MMX
+ const uint64_t mask24l = 0x0000000000FFFFFFULL;
+ const uint64_t mask24h = 0x0000FFFFFF000000ULL;
+ uint8_t *mm_end;
+#endif
end = s + src_size;
+#ifdef HAVE_MMX
+ __asm __volatile(PREFETCH" %0\n\t"::"m"(*s):"memory");
+ mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
+ __asm __volatile(
+ "movq %0, %%mm7\n\t"
+ "movq %1, %%mm6\n\t"
+ ::"m"(mask24l),"m"(mask24h):"memory");
+ if(mm_end == end) mm_end -= MMREG_SIZE*2;
+ while(s < mm_end)
+ {
+ __asm __volatile(
+ PREFETCH" 32%1\n\t"
+ "movq %1, %%mm0\n\t"
+ "movq 8%1, %%mm1\n\t"
+ "movq %%mm0, %%mm2\n\t"
+ "movq %%mm1, %%mm3\n\t"
+ "psrlq $8, %%mm2\n\t"
+ "psrlq $8, %%mm3\n\t"
+ "pand %%mm7, %%mm0\n\t"
+ "pand %%mm7, %%mm1\n\t"
+ "pand %%mm6, %%mm2\n\t"
+ "pand %%mm6, %%mm3\n\t"
+ "por %%mm2, %%mm0\n\t"
+ "por %%mm3, %%mm1\n\t"
+ MOVNTQ" %%mm0, %0\n\t"
+ MOVNTQ" %%mm1, 6%0"
+ :"=m"(*dest)
+ :"m"(*s)
+ :"memory");
+ dest += 12;
+ s += 16;
+ }
+ __asm __volatile(SFENCE:::"memory");
+ __asm __volatile(EMMS:::"memory");
+#endif
while(s < end)
{
*dest++ = *s++;
}
}
+/* TODO: 3DNOW, MMX2 optimization */
+
/* Original by Strepto/Astral
ported to gcc & bugfixed : A'rpi */
void rgb15to16(uint8_t *src,uint8_t *dst,uint32_t src_size)