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* more PIC friendly and faster code

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Originally committed as revision 616 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Zdenek Kabelac 23 years ago
parent 5f6230016a
commit c0eb0bb717
1 changed files with 63 additions and 96 deletions
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  1. 159
      libavcodec/i386/dsputil_mmx_avg.h

159
libavcodec/i386/dsputil_mmx_avg.h
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@ -27,32 +27,32 @@
static void DEF(put_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
"xorl %%eax, %%eax \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq 1(%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"lea (%3, %3), %%eax \n\t"
"1: \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq %%mm0, (%3, %%eax) \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"addl %5, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq 1(%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm2, (%2, %3) \n\t"
"movq (%1), %%mm0 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq %%mm0, (%3, %%eax) \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"addl %5, %%eax \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm2, (%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" (block), "r" (block+line_size),
"g"(line_size<<1)
:"+g"(h), "+S"(pixels), "+D"(block)
:"c" (line_size)
:"%eax", "memory");
}
@ -60,102 +60,68 @@ static void DEF(put_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size,
static void DEF(put_no_rnd_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
"xorl %%eax, %%eax \n\t"
"lea (%3, %3), %%eax \n\t"
MOVQ_BONE(%%mm7)
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq 1(%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm0 \n\t"
"psubusb %%mm7, %%mm2 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq %%mm0, (%3, %%eax) \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"addl %5, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq 1(%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm2, (%2, %3) \n\t"
"movq (%1), %%mm0 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm0 \n\t"
"psubusb %%mm7, %%mm2 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq %%mm0, (%3, %%eax) \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"addl %5, %%eax \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm2, (%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" (block), "r" (block+line_size),
"r"(line_size<<1)
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"c" (line_size)
:"%eax", "memory");
}
static void DEF(put_pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
#if 1
// Michael - measure me
__asm __volatile(
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"subl %3, %2 \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm2 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm2, %%mm1 \n\t"
"addl %%eax, %1 \n\t"
"movq %%mm0, (%2, %3) \n\t"
"movq %%mm1, (%2, %%eax) \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
PAVGB" %%mm1, %%mm2 \n\t"
PAVGB" %%mm0, %%mm1 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm2 \n\t"
PAVGB" %%mm0, %%mm1 \n\t"
"movq %%mm2, (%2, %3) \n\t"
"movq %%mm1, (%2, %%eax) \n\t"
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
"jnz 1b \n\t"
:"+g"(h), "+D"(pixels), "+S" (block)
:"+g"(h), "+S"(pixels), "+D" (block)
:"c"(line_size)
:"%eax", "memory");
#else
// kabi measure me
__asm __volatile(
"movq (%2), %%mm0 \n\t"
"addl %1, %2 \n\t"
"xorl %%eax, %%eax \n\t"
"leal (%1, %2), %%edi \n\t"
"leal (%1, %3), %%esi \n\t"
"addl %1, %1 \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%2 , %%eax), %%mm1 \n\t"
"movq (%%edi, %%eax), %%mm2 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm2, %%mm1 \n\t"
"movq %%mm0, (%3 , %%eax) \n\t"
"movq %%mm1, (%%esi, %%eax) \n\t"
"addl %1, %%eax \n\t"
"movq (%2 , %%eax), %%mm1 \n\t"
"movq (%%edi, %%eax), %%mm0 \n\t"
PAVGB" %%mm1, %%mm2 \n\t"
PAVGB" %%mm0, %%mm1 \n\t"
"movq %%mm2, (%3 , %%eax) \n\t"
"movq %%mm1, (%%esi, %%eax) \n\t"
"addl %1, %%eax \n\t"
"subl $4, %0 \n\t"
" jnz 1b \n\t"
:"+g"(h), "+r"(line_size), "+r"(pixels)
: "r" (block)
: "%eax", "%esi", "%edi", "memory");
#endif
}
/* GL: this function does incorrect rounding if overflow */
@ -163,32 +129,33 @@ static void DEF(put_no_rnd_pixels_y2)(UINT8 *block, const UINT8 *pixels, int lin
{
__asm __volatile(
MOVQ_BONE(%%mm7)
"xorl %%eax, %%eax \n\t"
"movq (%1), %%mm0 \n\t"
".balign 16 \n\t"
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"subl %3, %2 \n\t"
"1: \n\t"
"movq (%2, %%eax), %%mm1 \n\t"
"movq (%3, %%eax), %%mm2 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm2 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm2, %%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 %%mm0, (%2, %3) \n\t"
"movq %%mm1, (%2, %%eax) \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm1 \n\t"
PAVGB" %%mm1, %%mm2 \n\t"
PAVGB" %%mm0, %%mm1 \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"movq %%mm1, (%5, %%eax) \n\t"
"addl %6, %%eax \n\t"
"movq %%mm2, (%2, %3) \n\t"
"movq %%mm1, (%2, %%eax) \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)
:"%eax", "memory");
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D" (block)
:"c"(line_size)
:"%eax", "memory");
}
static void DEF(avg_pixels)(UINT8 *block, const UINT8 *pixels, int line_size, int h)

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