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ffmpeg/libavcodec/i386/motion_est_mmx.c

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/*
* MMX optimized motion estimation
* Copyright (c) 2001 Fabrice Bellard.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* mostly by Michael Niedermayer <michaelni@gmx.at>
*/
#include "../dsputil.h"
static const __attribute__ ((aligned(8))) UINT64 round_tab[3]={
0x0000000000000000,
0x0001000100010001,
0x0002000200020002,
};
static __attribute__ ((aligned(8))) uint64_t bone= 0x0101010101010101LL;
static inline void sad8_mmx(UINT8 *blk1, UINT8 *blk2, int stride, int h)
{
int len= -(stride<<h);
asm volatile(
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"movq (%2, %%eax), %%mm4 \n\t"
"addl %3, %%eax \n\t"
"psubusb %%mm0, %%mm2 \n\t"
"psubusb %%mm4, %%mm0 \n\t"
"movq (%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm3 \n\t"
"movq (%2, %%eax), %%mm5 \n\t"
"psubusb %%mm1, %%mm3 \n\t"
"psubusb %%mm5, %%mm1 \n\t"
"por %%mm2, %%mm0 \n\t"
"por %%mm1, %%mm3 \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm3, %%mm2 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpckhbw %%mm7, %%mm1 \n\t"
"punpcklbw %%mm7, %%mm3 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"paddw %%mm1, %%mm0 \n\t"
"paddw %%mm3, %%mm2 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"addl %3, %%eax \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1 - len), "r" (blk2 - len), "r" (stride)
);
}
static inline void sad8_mmx2(UINT8 *blk1, UINT8 *blk2, int stride, int h)
{
int len= -(stride<<h);
asm volatile(
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"psadbw %%mm2, %%mm0 \n\t"
"addl %3, %%eax \n\t"
"movq (%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm3 \n\t"
"psadbw %%mm1, %%mm3 \n\t"
"paddw %%mm3, %%mm0 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"addl %3, %%eax \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1 - len), "r" (blk2 - len), "r" (stride)
);
}
static inline void sad8_2_mmx2(UINT8 *blk1a, UINT8 *blk1b, UINT8 *blk2, int stride, int h)
{
int len= -(stride<<h);
asm volatile(
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"pavgb %%mm2, %%mm0 \n\t"
"movq (%3, %%eax), %%mm2 \n\t"
"psadbw %%mm2, %%mm0 \n\t"
"addl %4, %%eax \n\t"
"movq (%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm3 \n\t"
"pavgb %%mm1, %%mm3 \n\t"
"movq (%3, %%eax), %%mm1 \n\t"
"psadbw %%mm1, %%mm3 \n\t"
"paddw %%mm3, %%mm0 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"addl %4, %%eax \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" (stride)
);
}
static inline void sad8_4_mmx2(UINT8 *blk1, UINT8 *blk2, int stride, int h)
{ //FIXME reuse src
int len= -(stride<<h);
asm volatile(
".balign 16 \n\t"
"movq "MANGLE(bone)", %%mm5 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq (%2, %%eax), %%mm2 \n\t"
"movq 1(%1, %%eax), %%mm1 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"pavgb %%mm2, %%mm0 \n\t"
"pavgb %%mm1, %%mm3 \n\t"
"psubusb %%mm5, %%mm3 \n\t"
"pavgb %%mm3, %%mm0 \n\t"
"movq (%3, %%eax), %%mm2 \n\t"
"psadbw %%mm2, %%mm0 \n\t"
"addl %4, %%eax \n\t"
"movq (%1, %%eax), %%mm1 \n\t"
"movq (%2, %%eax), %%mm3 \n\t"
"movq 1(%1, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm4 \n\t"
"pavgb %%mm3, %%mm1 \n\t"
"pavgb %%mm4, %%mm2 \n\t"
"psubusb %%mm5, %%mm2 \n\t"
"pavgb %%mm1, %%mm2 \n\t"
"movq (%3, %%eax), %%mm1 \n\t"
"psadbw %%mm1, %%mm2 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"addl %4, %%eax \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1 - len), "r" (blk1 - len + stride), "r" (blk2 - len), "r" (stride)
);
}
static inline void sad8_2_mmx(UINT8 *blk1a, UINT8 *blk1b, UINT8 *blk2, int stride, int h)
{
int len= -(stride<<h);
asm volatile(
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq (%2, %%eax), %%mm1 \n\t"
"movq (%1, %%eax), %%mm2 \n\t"
"movq (%2, %%eax), %%mm3 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm3 \n\t"
"paddw %%mm0, %%mm1 \n\t"
"paddw %%mm2, %%mm3 \n\t"
"movq (%3, %%eax), %%mm4 \n\t"
"movq (%3, %%eax), %%mm2 \n\t"
"paddw %%mm5, %%mm1 \n\t"
"paddw %%mm5, %%mm3 \n\t"
"psrlw $1, %%mm1 \n\t"
"psrlw $1, %%mm3 \n\t"
"packuswb %%mm3, %%mm1 \n\t"
"psubusb %%mm1, %%mm4 \n\t"
"psubusb %%mm2, %%mm1 \n\t"
"por %%mm4, %%mm1 \n\t"
"movq %%mm1, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpckhbw %%mm7, %%mm1 \n\t"
"paddw %%mm1, %%mm0 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"addl %4, %%eax \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" (stride)
);
}
static inline void sad8_4_mmx(UINT8 *blk1, UINT8 *blk2, int stride, int h)
{
int len= -(stride<<h);
asm volatile(
".balign 16 \n\t"
"1: \n\t"
"movq (%1, %%eax), %%mm0 \n\t"
"movq (%2, %%eax), %%mm1 \n\t"
"movq %%mm0, %%mm4 \n\t"
"movq %%mm1, %%mm2 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm4 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"paddw %%mm1, %%mm0 \n\t"
"paddw %%mm2, %%mm4 \n\t"
"movq 1(%1, %%eax), %%mm2 \n\t"
"movq 1(%2, %%eax), %%mm3 \n\t"
"movq %%mm2, %%mm1 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm1 \n\t"
"paddw %%mm0, %%mm2 \n\t"
"paddw %%mm4, %%mm1 \n\t"
"movq %%mm3, %%mm4 \n\t"
"punpcklbw %%mm7, %%mm3 \n\t"
"punpckhbw %%mm7, %%mm4 \n\t"
"paddw %%mm3, %%mm2 \n\t"
"paddw %%mm4, %%mm1 \n\t"
"movq (%3, %%eax), %%mm3 \n\t"
"movq (%3, %%eax), %%mm4 \n\t"
"paddw %%mm5, %%mm2 \n\t"
"paddw %%mm5, %%mm1 \n\t"
"psrlw $2, %%mm2 \n\t"
"psrlw $2, %%mm1 \n\t"
"packuswb %%mm1, %%mm2 \n\t"
"psubusb %%mm2, %%mm3 \n\t"
"psubusb %%mm4, %%mm2 \n\t"
"por %%mm3, %%mm2 \n\t"
"movq %%mm2, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"addl %4, %%eax \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1 - len), "r" (blk1 -len + stride), "r" (blk2 - len), "r" (stride)
);
}
static inline int sum_mmx()
{
int ret;
asm volatile(
"movq %%mm6, %%mm0 \n\t"
"psrlq $32, %%mm6 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"movq %%mm6, %%mm0 \n\t"
"psrlq $16, %%mm6 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"movd %%mm6, %0 \n\t"
: "=r" (ret)
);
return ret&0xFFFF;
}
static inline int sum_mmx2()
{
int ret;
asm volatile(
"movd %%mm6, %0 \n\t"
: "=r" (ret)
);
return ret;
}
#define PIX_SAD(suf)\
int pix_abs8x8_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t":);\
\
sad8_ ## suf(blk1, blk2, stride, 3);\
\
return sum_ ## suf();\
}\
int sad8x8_ ## suf(void *s, UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t":);\
\
sad8_ ## suf(blk1, blk2, stride, 3);\
\
return sum_ ## suf();\
}\
\
int pix_abs8x8_x2_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t"\
"movq %0, %%mm5 \n\t"\
:: "m"(round_tab[1]) \
);\
\
sad8_2_ ## suf(blk1, blk1+1, blk2, stride, 3);\
\
return sum_ ## suf();\
}\
\
int pix_abs8x8_y2_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t"\
"movq %0, %%mm5 \n\t"\
:: "m"(round_tab[1]) \
);\
\
sad8_2_ ## suf(blk1, blk1+stride, blk2, stride, 3);\
\
return sum_ ## suf();\
}\
\
int pix_abs8x8_xy2_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t"\
"movq %0, %%mm5 \n\t"\
:: "m"(round_tab[2]) \
);\
\
sad8_4_ ## suf(blk1, blk2, stride, 3);\
\
return sum_ ## suf();\
}\
\
int pix_abs16x16_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t":);\
\
sad8_ ## suf(blk1 , blk2 , stride, 4);\
sad8_ ## suf(blk1+8, blk2+8, stride, 4);\
\
return sum_ ## suf();\
}\
int sad16x16_ ## suf(void *s, UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t":);\
\
sad8_ ## suf(blk1 , blk2 , stride, 4);\
sad8_ ## suf(blk1+8, blk2+8, stride, 4);\
\
return sum_ ## suf();\
}\
int pix_abs16x16_x2_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t"\
"movq %0, %%mm5 \n\t"\
:: "m"(round_tab[1]) \
);\
\
sad8_2_ ## suf(blk1 , blk1+1, blk2 , stride, 4);\
sad8_2_ ## suf(blk1+8, blk1+9, blk2+8, stride, 4);\
\
return sum_ ## suf();\
}\
int pix_abs16x16_y2_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t"\
"movq %0, %%mm5 \n\t"\
:: "m"(round_tab[1]) \
);\
\
sad8_2_ ## suf(blk1 , blk1+stride, blk2 , stride, 4);\
sad8_2_ ## suf(blk1+8, blk1+stride+8,blk2+8, stride, 4);\
\
return sum_ ## suf();\
}\
int pix_abs16x16_xy2_ ## suf(UINT8 *blk2, UINT8 *blk1, int stride)\
{\
asm volatile("pxor %%mm7, %%mm7 \n\t"\
"pxor %%mm6, %%mm6 \n\t"\
"movq %0, %%mm5 \n\t"\
:: "m"(round_tab[2]) \
);\
\
sad8_4_ ## suf(blk1 , blk2 , stride, 4);\
sad8_4_ ## suf(blk1+8, blk2+8, stride, 4);\
\
return sum_ ## suf();\
}\
PIX_SAD(mmx)
PIX_SAD(mmx2)
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