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* optimized remaing avg_pixels_xy2 

Originally committed as revision 621 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zdenek Kabelac 2002-05-29 08:31:22 +00:00
parent c04643a2c2
commit d17b6f0bbb
1 changed files with 26 additions and 34 deletions
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60
libavcodec/i386/dsputil_mmx_avg.h
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@ -258,47 +258,39 @@ static void DEF(avg_pixels_xy2)(UINT8 *block, const UINT8 *pixels, int line_size
{
__asm __volatile(
MOVQ_BONE(%%mm7)
"xorl %%eax, %%eax \n\t"
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"movq 1(%1), %%mm1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
".balign 16 \n\t"
PAVGB" 1(%1), %%mm0 \n\t"
".balign 8 \n\t"
"1: \n\t"
"movq (%2, %%eax), %%mm1 \n\t"
"movq (%3, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"movq 1(%3, %%eax), %%mm4 \n\t"
"movq (%1, %%eax), %%mm2 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"psubusb %%mm7, %%mm2 \n\t"
PAVGB" %%mm3, %%mm1 \n\t"
PAVGB" %%mm4, %%mm2 \n\t"
PAVGB" 1(%1, %3), %%mm1 \n\t"
PAVGB" 1(%1, %%eax), %%mm2 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm2, %%mm1 \n\t"
"movq (%4, %%eax), %%mm3 \n\t"
"movq (%5, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm0 \n\t"
PAVGB" %%mm4, %%mm1 \n\t"
"movq %%mm0, (%4, %%eax) \n\t"
"movq %%mm1, (%5, %%eax) \n\t"
"addl %6, %%eax \n\t"
"movq (%2, %%eax), %%mm1 \n\t"
"movq (%3, %%eax), %%mm0 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"movq 1(%3, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm1 \n\t"
PAVGB" %%mm4, %%mm0 \n\t"
PAVGB" (%2), %%mm0 \n\t"
PAVGB" (%2, %3), %%mm1 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
PAVGB" 1(%1, %3), %%mm1 \n\t"
PAVGB" 1(%1, %%eax), %%mm0 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm2 \n\t"
PAVGB" %%mm0, %%mm1 \n\t"
"movq (%4, %%eax), %%mm3 \n\t"
"movq (%5, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
PAVGB" %%mm4, %%mm1 \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"movq %%mm1, (%5, %%eax) \n\t"
"addl %6, %%eax \n\t"
PAVGB" (%2), %%mm2 \n\t"
PAVGB" (%2, %3), %%mm1 \n\t"
"movq %%mm2, (%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
" jnz 1b \n\t"
:"+g"(h)
:"D"(pixels), "S"(pixels+line_size), "r"(pixels+line_size*2), "r" (block),
"r" (block+line_size), "g"(line_size<<1)
"jnz 1b \n\t"
:"+g"(h), "+D"(pixels), "+S"(block)
:"r" (line_size)
:"%eax", "memory");
}