📄 motion_est_mmx.c
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/*
* MMX optimized motion estimation
* Copyright (c) 2001 Fabrice Bellard.
* Copyright (c) 2002-2004 Michael Niedermayer
*
* mostly by Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "dsputil.h"
#include "x86_cpu.h"
static const __attribute__ ((aligned(8))) uint64_t round_tab[3]={
0x0000000000000000ULL,
0x0001000100010001ULL,
0x0002000200020002ULL,
};
static attribute_used __attribute__ ((aligned(8))) uint64_t bone= 0x0101010101010101LL;
static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
{
long len= -(stride*h);
asm volatile(
ASMALIGN(4)
"1: \n\t"
"movq (%1, %%"REG_a"), %%mm0 \n\t"
"movq (%2, %%"REG_a"), %%mm2 \n\t"
"movq (%2, %%"REG_a"), %%mm4 \n\t"
"add %3, %%"REG_a" \n\t"
"psubusb %%mm0, %%mm2 \n\t"
"psubusb %%mm4, %%mm0 \n\t"
"movq (%1, %%"REG_a"), %%mm1 \n\t"
"movq (%2, %%"REG_a"), %%mm3 \n\t"
"movq (%2, %%"REG_a"), %%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"
"add %3, %%"REG_a" \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1 - len), "r" (blk2 - len), "r" ((long)stride)
);
}
static inline void sad8_1_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
{
asm volatile(
ASMALIGN(4)
"1: \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"psadbw (%2), %%mm0 \n\t"
"psadbw (%2, %3), %%mm1 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"paddw %%mm1, %%mm6 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%2,%3,2), %2 \n\t"
"sub $2, %0 \n\t"
" jg 1b \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2)
: "r" ((long)stride)
);
}
static int sad16_sse2(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)
{
int ret;
asm volatile(
"pxor %%xmm6, %%xmm6 \n\t"
ASMALIGN(4)
"1: \n\t"
"movdqu (%1), %%xmm0 \n\t"
"movdqu (%1, %3), %%xmm1 \n\t"
"psadbw (%2), %%xmm0 \n\t"
"psadbw (%2, %3), %%xmm1 \n\t"
"paddw %%xmm0, %%xmm6 \n\t"
"paddw %%xmm1, %%xmm6 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%2,%3,2), %2 \n\t"
"sub $2, %0 \n\t"
" jg 1b \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2)
: "r" ((long)stride)
);
asm volatile(
"movhlps %%xmm6, %%xmm0 \n\t"
"paddw %%xmm0, %%xmm6 \n\t"
"movd %%xmm6, %0 \n\t"
: "=r"(ret)
);
return ret;
}
static inline void sad8_x2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
{
asm volatile(
ASMALIGN(4)
"1: \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"
"psadbw (%2), %%mm0 \n\t"
"psadbw (%2, %3), %%mm1 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"paddw %%mm1, %%mm6 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%2,%3,2), %2 \n\t"
"sub $2, %0 \n\t"
" jg 1b \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2)
: "r" ((long)stride)
);
}
static inline void sad8_y2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
{
asm volatile(
"movq (%1), %%mm0 \n\t"
"add %3, %1 \n\t"
ASMALIGN(4)
"1: \n\t"
"movq (%1), %%mm1 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"pavgb %%mm1, %%mm0 \n\t"
"pavgb %%mm2, %%mm1 \n\t"
"psadbw (%2), %%mm0 \n\t"
"psadbw (%2, %3), %%mm1 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"paddw %%mm1, %%mm6 \n\t"
"movq %%mm2, %%mm0 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%2,%3,2), %2 \n\t"
"sub $2, %0 \n\t"
" jg 1b \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2)
: "r" ((long)stride)
);
}
static inline void sad8_4_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
{
asm volatile(
"movq "MANGLE(bone)", %%mm5 \n\t"
"movq (%1), %%mm0 \n\t"
"pavgb 1(%1), %%mm0 \n\t"
"add %3, %1 \n\t"
ASMALIGN(4)
"1: \n\t"
"movq (%1), %%mm1 \n\t"
"movq (%1,%3), %%mm2 \n\t"
"pavgb 1(%1), %%mm1 \n\t"
"pavgb 1(%1,%3), %%mm2 \n\t"
"psubusb %%mm5, %%mm1 \n\t"
"pavgb %%mm1, %%mm0 \n\t"
"pavgb %%mm2, %%mm1 \n\t"
"psadbw (%2), %%mm0 \n\t"
"psadbw (%2,%3), %%mm1 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"paddw %%mm1, %%mm6 \n\t"
"movq %%mm2, %%mm0 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%2,%3,2), %2 \n\t"
"sub $2, %0 \n\t"
" jg 1b \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2)
: "r" ((long)stride)
);
}
static inline void sad8_2_mmx(uint8_t *blk1a, uint8_t *blk1b, uint8_t *blk2, int stride, int h)
{
long len= -(stride*h);
asm volatile(
ASMALIGN(4)
"1: \n\t"
"movq (%1, %%"REG_a"), %%mm0 \n\t"
"movq (%2, %%"REG_a"), %%mm1 \n\t"
"movq (%1, %%"REG_a"), %%mm2 \n\t"
"movq (%2, %%"REG_a"), %%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, %%"REG_a"), %%mm4 \n\t"
"movq (%3, %%"REG_a"), %%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"
"add %4, %%"REG_a" \n\t"
" js 1b \n\t"
: "+a" (len)
: "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" ((long)stride)
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