github/mpv
1
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2025-01-01 04:36:24 +01:00
Code Releases Activity

32to24: MMX, MMX2, 3DNOW optimization

Browse Source 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2518 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-10-28 17:42:52 +00:00
parent 578e647be3
commit 7ae1041907
2 changed files with 84 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
postproc/rgb2rgb.c
View File

@ -51,13 +51,52 @@ void rgb24to32(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++;
@ -67,6 +106,8 @@ void rgb32to24(uint8_t *src,uint8_t *dst,uint32_t src_size)
}
}
/* 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)

43
postproc/rgb2rgb_template.c
View File

@ -51,13 +51,52 @@ void rgb24to32(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++;
@ -67,6 +106,8 @@ void rgb32to24(uint8_t *src,uint8_t *dst,uint32_t src_size)
}
}
/* 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)