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ffmpeg.wasm-core
Commit 607dce96 authored by Michael Niedermayer's avatar Michael Niedermayer
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hopefully faster mmx2&3dnow MC 

Originally committed as revision 506 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 59fe111e
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Showing with 362 additions and 323 deletions
libavcodec/i386/dsputil_mmx.c
View file @ 607dce96
......@@ -21,6 +21,7 @@
#include "../dsputil.h"
#include "../simple_idct.h"
#include "../mangle.h"
int mm_flags; /* multimedia extension flags */
......@@ -49,6 +50,7 @@ void ff_mmx_idct(DCTELEM *block);
void ff_mmxext_idct(DCTELEM *block);
/* pixel operations */
static const unsigned long long int mm_bone __attribute__ ((aligned(8))) = 0x0101010101010101LL;
static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001LL;
static const unsigned long long int mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002LL;
//static const unsigned short mm_wone[4] __attribute__ ((aligned(8))) = { 0x1, 0x1, 0x1, 0x1 };
......@@ -90,7 +92,7 @@ static const unsigned long long int mm_wtwo __attribute__ ((aligned(8))) = 0x000
/***********************************/
/* MMX2 specific */
#define DEF(x) x ## _sse
#define DEF(x) x ## _mmx2
/* Introduced only in MMX2 set */
#define PAVGB "pavgb"
......@@ -105,41 +107,38 @@ static const unsigned long long int mm_wtwo __attribute__ ((aligned(8))) = 0x000
static void get_pixels_mmx(DCTELEM *block, const UINT8 *pixels, int line_size)
{
DCTELEM *p;
const UINT8 *pix;
int i;
/* read the pixels */
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
for(i=0;i<4;i++) {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq %2, %%mm1\n\t"
"movq %%mm0, %%mm2\n\t"
"movq %%mm1, %%mm3\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpckhbw %%mm7, %%mm2\n\t"
"punpcklbw %%mm7, %%mm1\n\t"
"punpckhbw %%mm7, %%mm3\n\t"
"movq %%mm0, %0\n\t"
"movq %%mm2, 8%0\n\t"
"movq %%mm1, 16%0\n\t"
"movq %%mm3, 24%0\n\t"
:"=m"(*p)
:"m"(*pix), "m"(*(pix+line_size))
:"memory");
pix += line_size*2;
p += 16;
}
asm volatile(
"movl $-128, %%eax \n\t"
"pxor %%mm7, %%mm7 \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%0), %%mm0 \n\t"
"movq (%0, %2), %%mm2 \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm2, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpckhbw %%mm7, %%mm1 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm3 \n\t"
"movq %%mm0, (%1, %%eax)\n\t"
"movq %%mm1, 8(%1, %%eax)\n\t"
"movq %%mm2, 16(%1, %%eax)\n\t"
"movq %%mm3, 24(%1, %%eax)\n\t"
"addl %3, %0 \n\t"
"addl $32, %%eax \n\t"
"js 1b \n\t"
: "+r" (pixels)
: "r" (block+64), "r" (line_size), "r" (line_size*2)
: "%eax"
);
}
static void diff_pixels_mmx(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride)
{
asm volatile(
".balign 16 \n\t"
"pxor %%mm7, %%mm7 \n\t"
"movl $-128, %%eax \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%0), %%mm0 \n\t"
"movq (%1), %%mm2 \n\t"
......@@ -261,56 +260,62 @@ static void add_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line
static void put_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
int hh;
UINT8 *p;
const UINT8 *pix;
p = block;
pix = pixels; // 2s
#if 0
do {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:"=m"(*p)
:"m"(*pix)
:"memory");
pix += line_size;
p += line_size;
} while (--h);
#if 0 //FIXME h==4 case
asm volatile(
"xorl %%eax, %%eax \n\t"
"movl %3, %%esi \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"subl $8, %%esi \n\t"
" jnz 1b \n\t"
:: "r" (block), "r" (pixels), "r"(line_size), "m"(h)
: "%eax", "%esi", "memory"
);
#else
// this optimized code is not very usefull
// the above loop is definitely faster
// at least on Celeron 500MHz
hh = h & 3;
while (hh) {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:"=m"(*p)
:"m"(*pix)
:"memory");
pix += line_size;
p += line_size;
hh--;
}
hh=h>>2;
while (hh) {
__asm __volatile(
"movq (%1), %%mm0 \n\t"
"movq (%1, %2), %%mm1 \n\t"
"movq (%1, %2, 2), %%mm2 \n\t"
"movq (%1, %3), %%mm3 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm1, (%0, %2) \n\t"
"movq %%mm2, (%0, %2, 2) \n\t"
"movq %%mm3, (%0, %3) \n\t"
::"r"(p), "r"(pix), "r"(line_size), "r"(line_size*3)
:"memory");
pix += line_size*4;
p += line_size*4;
hh--;
}
asm volatile(
"xorl %%eax, %%eax \n\t"
"movl %3, %%esi \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq %%mm0, (%0, %%eax) \n\t"
"addl %2, %%eax \n\t"
"subl $4, %%esi \n\t"
" jnz 1b \n\t"
:: "r" (block), "r" (pixels), "r"(line_size), "m"(h)
: "%eax", "%esi", "memory"
);
#endif
}
......@@ -1124,7 +1129,7 @@ void dsputil_init_mmx(void)
avg_no_rnd_pixels_tab[1] = avg_no_rnd_pixels_x2_mmx;
avg_no_rnd_pixels_tab[2] = avg_no_rnd_pixels_y2_mmx;
avg_no_rnd_pixels_tab[3] = avg_no_rnd_pixels_xy2_mmx;
sub_pixels_tab[0] = sub_pixels_mmx;
sub_pixels_tab[1] = sub_pixels_x2_mmx;
sub_pixels_tab[2] = sub_pixels_y2_mmx;
......@@ -1140,20 +1145,24 @@ void dsputil_init_mmx(void)
pix_abs8x8_x2 = pix_abs8x8_x2_mmx2;
pix_abs8x8_y2 = pix_abs8x8_y2_mmx2;
pix_abs8x8_xy2= pix_abs8x8_xy2_mmx2;
put_pixels_tab[1] = put_pixels_x2_mmx2;
put_pixels_tab[2] = put_pixels_y2_mmx2;
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_mmx2;
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_mmx2;
put_pixels_tab[1] = put_pixels_x2_sse;
put_pixels_tab[2] = put_pixels_y2_sse;
avg_pixels_tab[0] = avg_pixels_sse;
avg_pixels_tab[1] = avg_pixels_x2_sse;
avg_pixels_tab[2] = avg_pixels_y2_sse;
avg_pixels_tab[3] = avg_pixels_xy2_sse;
avg_pixels_tab[0] = avg_pixels_mmx2;
avg_pixels_tab[1] = avg_pixels_x2_mmx2;
avg_pixels_tab[2] = avg_pixels_y2_mmx2;
avg_pixels_tab[3] = avg_pixels_xy2_mmx2;
sub_pixels_tab[1] = sub_pixels_x2_sse;
sub_pixels_tab[2] = sub_pixels_y2_sse;
sub_pixels_tab[1] = sub_pixels_x2_mmx2;
sub_pixels_tab[2] = sub_pixels_y2_mmx2;
} else if (mm_flags & MM_3DNOW) {
put_pixels_tab[1] = put_pixels_x2_3dnow;
put_pixels_tab[2] = put_pixels_y2_3dnow;
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_3dnow;
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_3dnow;
avg_pixels_tab[0] = avg_pixels_3dnow;
avg_pixels_tab[1] = avg_pixels_x2_3dnow;
......
libavcodec/i386/dsputil_mmx_avg.h
View file @ 607dce96
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