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* optimized avg_* functions (except xy2)

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* minor speedup for put_pixels_x2 & cleanup

Originally committed as revision 619 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zdenek Kabelac 2002-05-28 16:35:58 +00:00
parent 33a1f1a3c1
commit e9c0a38ff0
1 changed files with 140 additions and 154 deletions
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294
libavcodec/i386/dsputil_mmx_avg.h
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@ -19,6 +19,7 @@
*
* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
* mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
* and improved by Zdenek Kabelac <kabi@users.sf.net>
*/
/* XXX: we use explicit registers to avoid a gcc 2.95.2 register asm
@ -27,32 +28,28 @@
static void DEF(put_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
"lea (%3, %3), %%eax \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 (%1, %3), %%mm1 \n\t"
PAVGB" 1(%1), %%mm0 \n\t"
PAVGB" 1(%1, %3), %%mm1 \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"
"movq %%mm1, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \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), "+S"(pixels), "+D"(block)
:"c" (line_size)
"addl %%eax, %2 \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm1 \n\t"
PAVGB" 1(%1), %%mm0 \n\t"
PAVGB" 1(%1, %3), %%mm1 \n\t"
"addl %%eax, %1 \n\t"
"movq %%mm0, (%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), "+S"(pixels), "+D"(block)
:"r" (line_size)
:"%eax", "memory");
}
@ -60,16 +57,16 @@ 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(
"lea (%3, %3), %%eax \n\t"
"lea (%3, %3), %%eax \n\t"
MOVQ_BONE(%%mm7)
"1: \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"
"psubusb %%mm7, %%mm0 \n\t"
"psubusb %%mm7, %%mm2 \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, (%2) \n\t"
@ -78,49 +75,49 @@ static void DEF(put_no_rnd_pixels_x2)(UINT8 *block, const UINT8 *pixels, int lin
"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, %2 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm0 \n\t"
"psubusb %%mm7, %%mm2 \n\t"
"psubusb %%mm7, %%mm0 \n\t"
"psubusb %%mm7, %%mm2 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq %%mm0, (%2) \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), "+S"(pixels), "+D"(block)
:"c" (line_size)
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r" (line_size)
:"%eax", "memory");
}
static void DEF(put_pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"subl %3, %2 \n\t"
"1: \n\t"
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"subl %3, %2 \n\t"
"1: \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm2 \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm2, %%mm1 \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"
"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), "+S"(pixels), "+D" (block)
:"c"(line_size)
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D" (block)
:"r" (line_size)
:"%eax", "memory");
}
@ -129,142 +126,131 @@ static void DEF(put_no_rnd_pixels_y2)(UINT8 *block, const UINT8 *pixels, int lin
{
__asm __volatile(
MOVQ_BONE(%%mm7)
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"subl %3, %2 \n\t"
"1: \n\t"
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"subl %3, %2 \n\t"
"1: \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax), %%mm2 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm1 \n\t"
"addl %%eax, %1 \n\t"
"psubusb %%mm7, %%mm1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm2, %%mm1 \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"
"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, (%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), "+S"(pixels), "+D" (block)
:"c"(line_size)
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D" (block)
:"r" (line_size)
:"%eax", "memory");
}
static void DEF(avg_pixels)(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 (%2, %%eax), %%mm2 \n\t"
"movq (%3, %%eax), %%mm3 \n\t"
"movq (%4, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm0 \n\t"
PAVGB" %%mm4, %%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 (%2, %%eax), %%mm2 \n\t"
"movq (%3, %%eax), %%mm3 \n\t"
"movq (%4, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm0 \n\t"
PAVGB" %%mm4, %%mm2 \n\t"
"movq %%mm0, (%3, %%eax) \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"addl %5, %%eax \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)
"lea (%3, %3), %%eax \n\t"
"1: \n\t"
"movq (%2), %%mm0 \n\t"
"movq (%2, %3), %%mm1 \n\t"
PAVGB" (%1), %%mm0 \n\t"
PAVGB" (%1, %3), %%mm1 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
"movq (%2), %%mm0 \n\t"
"movq (%2, %3), %%mm1 \n\t"
PAVGB" (%1), %%mm0 \n\t"
PAVGB" (%1, %3), %%mm1 \n\t"
"addl %%eax, %1 \n\t"
"movq %%mm0, (%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), "+S"(pixels), "+D"(block)
:"r" (line_size)
:"%eax", "memory");
}
static void DEF(avg_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"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq (%3, %%eax), %%mm3 \n\t"
"movq (%4, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm0 \n\t"
PAVGB" %%mm4, %%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"
PAVGB" %%mm1, %%mm0 \n\t"
PAVGB" %%mm3, %%mm2 \n\t"
"movq (%3, %%eax), %%mm3 \n\t"
"movq (%4, %%eax), %%mm4 \n\t"
PAVGB" %%mm3, %%mm0 \n\t"
PAVGB" %%mm4, %%mm2 \n\t"
"movq %%mm0, (%3, %%eax) \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"addl %5, %%eax \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)
"lea (%3, %3), %%eax \n\t"
"1: \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
PAVGB" 1(%1), %%mm0 \n\t"
PAVGB" 1(%1, %3), %%mm2 \n\t"
PAVGB" (%2), %%mm0 \n\t"
PAVGB" (%2, %3), %%mm2 \n\t"
"addl %%eax, %1 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm2, (%2, %3) \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
PAVGB" 1(%1), %%mm0 \n\t"
PAVGB" 1(%1, %3), %%mm2 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
PAVGB" (%2), %%mm0 \n\t"
PAVGB" (%2, %3), %%mm2 \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), "+S"(pixels), "+D"(block)
:"r" (line_size)
:"%eax", "memory");
}
static void DEF(avg_pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
"xorl %%eax, %%eax \n\t"
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%2, %%eax), %%mm1 \n\t"
"movq (%3, %%eax), %%mm2 \n\t"
"subl %3, %2 \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"
"movq (%4, %%eax), %%mm3 \n\t"
"movq (%5, %%eax), %%mm4 \n\t"
"movq (%2, %3), %%mm3 \n\t"
"movq (%2, %%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 %%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"
"movq (%4, %%eax), %%mm3 \n\t"
"movq (%5, %%eax), %%mm4 \n\t"
"addl %%eax, %2 \n\t"
"addl %%eax, %1 \n\t"
"movq (%2, %3), %%mm3 \n\t"
"movq (%2, %%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"
"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");
"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), "+S"(pixels), "+D"(block)
:"r" (line_size)
:"%eax", "memory");
}
// Note this is not correctly rounded, but this function is only used for b frames so it doesnt matter
@ -272,17 +258,17 @@ static void DEF(avg_pixels_xy2)(UINT8 *block, const UINT8 *pixels, int line_size
{
__asm __volatile(
MOVQ_BONE(%%mm7)
"xorl %%eax, %%eax \n\t"
"xorl %%eax, %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"movq 1(%1), %%mm1 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
".balign 16 \n\t"
"1: \n\t"
".balign 16 \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"
"psubusb %%mm7, %%mm2 \n\t"
"psubusb %%mm7, %%mm2 \n\t"
PAVGB" %%mm3, %%mm1 \n\t"
PAVGB" %%mm4, %%mm2 \n\t"
PAVGB" %%mm1, %%mm0 \n\t"
@ -293,7 +279,7 @@ static void DEF(avg_pixels_xy2)(UINT8 *block, const UINT8 *pixels, int line_size
PAVGB" %%mm4, %%mm1 \n\t"
"movq %%mm0, (%4, %%eax) \n\t"
"movq %%mm1, (%5, %%eax) \n\t"
"addl %6, %%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"
@ -308,11 +294,11 @@ static void DEF(avg_pixels_xy2)(UINT8 *block, const UINT8 *pixels, int line_size
PAVGB" %%mm4, %%mm1 \n\t"
"movq %%mm2, (%4, %%eax) \n\t"
"movq %%mm1, (%5, %%eax) \n\t"
"addl %6, %%eax \n\t"
"subl $4, %0 \n\t"
" jnz 1b \n\t"
"addl %6, %%eax \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)
"r" (block+line_size), "g"(line_size<<1)
:"%eax", "memory");
}