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mmx opt ,untested, i have no mga 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2626 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2001-11-02 03:17:33 +00:00
parent 23e7685c8d
commit 80f8ea5769
1 changed files with 41 additions and 0 deletions
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41
libvo/mga_common.c
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@ -1,5 +1,6 @@
#include "fastmemcpy.h"
#include "../mmx_defs.h"
// mga_vid drawing functions
@ -57,15 +58,55 @@ draw_slice_g200(uint8_t *image[], int stride[], int width,int height,int x,int y
src2 = image[2];
for(h=0; h < height; h++)
{
#ifdef HAVE_MMX
asm(
"xorl %%eax, %%eax \n\t"
"1: \n\t"
PREFETCH" 64(%1, %%eax) \n\t"
PREFETCH" 64(%2, %%eax) \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq 8(%1, %%eax), %%mm2 \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm2, %%mm3 \n\t"
"movq (%2, %%eax), %%mm4 \n\t"
"movq 8(%2, %%eax), %%mm5 \n\t"
"punpcklbw %%mm4, %%mm0 \n\t"
"punpckhbw %%mm4, %%mm1 \n\t"
"punpcklbw %%mm5, %%mm2 \n\t"
"punpckhbw %%mm5, %%mm3 \n\t"
MOVNTQ" %%mm0, (%0, %%eax, 2) \n\t"
MOVNTQ" %%mm1, 8(%0, %%eax, 2) \n\t"
MOVNTQ" %%mm2, 16(%0, %%eax, 2) \n\t"
MOVNTQ" %%mm3, 24(%0, %%eax, 2) \n\t"
"addl $16, %%eax \n\t"
"cmpl %3, %%eax \n\t"
" jb 1b \n\t"
::"r"(dest), "r"(src), "r"(src2), "r" (width-15)
: "memory", "%eax"
);
for(w= (width&(~15)); w < width; w++)
{
dest[2*w+0] = src[w];
dest[2*w+1] = src2[w];
}
#else
for(w=0; w < width; w++)
{
dest[2*w+0] = src[w];
dest[2*w+1] = src2[w];
}
#endif
dest += bespitch;
src += stride[1];
src2+= stride[2];
}
#ifdef HAVE_MMX
asm(
EMMS" \n\t"
SFENCE" \n\t"
::: "memory"
);
#endif
}
static void