mirror of
https://github.com/FFmpeg/FFmpeg.git
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245 lines
6.4 KiB
C
245 lines
6.4 KiB
C
/*
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* MMX optimized motion estimation
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* Copyright (c) 2001 Gerard Lantau.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "../dsputil.h"
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#include "mmx.h"
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static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001;
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static const unsigned long long int mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002;
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/* mm7 is accumulator, mm6 is zero */
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static inline void sad_add(const UINT8 *p1, const UINT8 *p2)
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{
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movq_m2r(*p1, mm0);
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movq_m2r(*p2, mm1);
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movq_r2r(mm0, mm2);
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psubusb_r2r(mm1, mm0);
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psubusb_r2r(mm2, mm1);
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por_r2r(mm1, mm0); /* mm0 is absolute value */
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movq_r2r(mm0, mm1);
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punpcklbw_r2r(mm6, mm0);
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punpckhbw_r2r(mm6, mm1);
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paddusw_r2r(mm0, mm7);
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paddusw_r2r(mm1, mm7);
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}
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/* convert mm7 to value */
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static inline int sad_end(void)
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{
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int res;
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movq_r2r(mm7, mm0);
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psrlq_i2r(32, mm7);
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paddusw_r2r(mm0, mm7);
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movq_r2r(mm7, mm0);
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psrlq_i2r(16, mm7);
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paddusw_r2r(mm0, mm7);
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__asm __volatile ("movd %%mm7, %0" : "=a" (res));
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return res & 0xffff;
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}
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int pix_abs16x16_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
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{
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const UINT8 *p1, *p2;
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h >>= 1;
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p1 = blk1;
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p2 = blk2;
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pxor_r2r(mm7, mm7); /* mm7 is accumulator */
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pxor_r2r(mm6, mm6); /* mm7 is zero constant */
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do {
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sad_add(p1, p2);
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sad_add(p1 + 8, p2 + 8);
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p1 += lx;
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p2 += lx;
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sad_add(p1, p2);
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sad_add(p1 + 8, p2 + 8);
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p1 += lx;
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p2 += lx;
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} while (--h);
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return sad_end();
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}
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/* please test it ! */
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static inline void sad_add_sse(const UINT8 *p1, const UINT8 *p2)
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{
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movq_m2r(*(p1 + 0), mm0);
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movq_m2r(*(p1 + 8), mm1);
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psadbw_m2r(*(p2 + 0), mm0);
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psadbw_m2r(*(p2 + 8), mm1);
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paddusw_r2r(mm0, mm7);
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paddusw_r2r(mm1, mm7);
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}
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int pix_abs16x16_sse(UINT8 *blk1, UINT8 *blk2, int lx, int h)
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{
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const UINT8 *p1, *p2;
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h >>= 1;
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p1 = blk1;
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p2 = blk2;
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pxor_r2r(mm7, mm7); /* mm7 is accumulator */
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do {
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sad_add_sse(p1, p2);
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p1 += lx;
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p2 += lx;
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sad_add_sse(p1, p2);
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p1 += lx;
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p2 += lx;
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} while (--h);
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return sad_end();
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}
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#define DUMP(reg) { mmx_t tmp; movq_r2m(reg, tmp); printf(#reg "=%016Lx\n", tmp.uq); }
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/* mm7 is accumulator, mm6 is zero */
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static inline void sad_add_x2(const UINT8 *p1, const UINT8 *p2, const UINT8 *p3)
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{
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movq_m2r(*(p2 + 0), mm0);
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movq_m2r(*(p3 + 0), mm1);
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movq_r2r(mm0, mm2);
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movq_r2r(mm1, mm3);
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punpcklbw_r2r(mm6, mm0); /* extract 4 bytes low */
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punpcklbw_r2r(mm6, mm1);
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punpckhbw_r2r(mm6, mm2); /* high */
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punpckhbw_r2r(mm6, mm3);
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paddusw_r2r(mm1, mm0);
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paddusw_r2r(mm3, mm2);
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movq_m2r(*(p1 + 0), mm1); /* mm1 : other value */
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paddusw_r2r(mm5, mm0); /* + 1 */
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paddusw_r2r(mm5, mm2); /* + 1 */
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psrlw_i2r(1, mm0);
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psrlw_i2r(1, mm2);
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packuswb_r2r(mm2, mm0); /* average is in mm0 */
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movq_r2r(mm1, mm2);
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psubusb_r2r(mm0, mm1);
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psubusb_r2r(mm2, mm0);
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por_r2r(mm1, mm0); /* mm0 is absolute value */
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movq_r2r(mm0, mm1);
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punpcklbw_r2r(mm6, mm0);
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punpckhbw_r2r(mm6, mm1);
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paddusw_r2r(mm0, mm7);
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paddusw_r2r(mm1, mm7);
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}
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int pix_abs16x16_x2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
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{
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const UINT8 *p1, *p2;
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p1 = blk1;
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p2 = blk2;
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pxor_r2r(mm7, mm7); /* mm7 is accumulator */
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pxor_r2r(mm6, mm6); /* mm7 is zero constant */
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movq_m2r(mm_wone, mm5); /* one constant */
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do {
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sad_add_x2(p1, p2, p2 + 1);
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sad_add_x2(p1 + 8, p2 + 8, p2 + 9);
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p1 += lx;
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p2 += lx;
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} while (--h);
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return sad_end();
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}
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int pix_abs16x16_y2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
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{
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const UINT8 *p1, *p2;
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p1 = blk1;
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p2 = blk2;
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pxor_r2r(mm7, mm7); /* mm7 is accumulator */
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pxor_r2r(mm6, mm6); /* mm7 is zero constant */
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movq_m2r(mm_wone, mm5); /* one constant */
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do {
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sad_add_x2(p1, p2, p2 + lx);
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sad_add_x2(p1 + 8, p2 + 8, p2 + 8 + lx);
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p1 += lx;
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p2 += lx;
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} while (--h);
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return sad_end();
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}
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/* mm7 is accumulator, mm6 is zero */
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static inline void sad_add_xy2(const UINT8 *p1, const UINT8 *p2, const UINT8 *p3)
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{
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movq_m2r(*(p2 + 0), mm0);
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movq_m2r(*(p3 + 0), mm1);
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movq_r2r(mm0, mm2);
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movq_r2r(mm1, mm3);
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punpcklbw_r2r(mm6, mm0); /* extract 4 bytes low */
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punpcklbw_r2r(mm6, mm1);
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punpckhbw_r2r(mm6, mm2); /* high */
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punpckhbw_r2r(mm6, mm3);
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paddusw_r2r(mm1, mm0);
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paddusw_r2r(mm3, mm2);
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movq_m2r(*(p2 + 1), mm1);
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movq_m2r(*(p3 + 1), mm3);
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movq_r2r(mm1, mm4);
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punpcklbw_r2r(mm6, mm1); /* low */
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punpckhbw_r2r(mm6, mm4); /* high */
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paddusw_r2r(mm1, mm0);
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paddusw_r2r(mm4, mm2);
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movq_r2r(mm3, mm4);
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punpcklbw_r2r(mm6, mm3); /* low */
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punpckhbw_r2r(mm6, mm4); /* high */
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paddusw_r2r(mm3, mm0);
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paddusw_r2r(mm4, mm2);
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movq_m2r(*(p1 + 0), mm1); /* mm1 : other value */
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paddusw_r2r(mm5, mm0); /* + 2 */
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paddusw_r2r(mm5, mm2); /* + 2 */
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psrlw_i2r(2, mm0);
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psrlw_i2r(2, mm2);
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packuswb_r2r(mm2, mm0); /* average is in mm0 */
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movq_r2r(mm1, mm2);
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psubusb_r2r(mm0, mm1);
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psubusb_r2r(mm2, mm0);
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por_r2r(mm1, mm0); /* mm0 is absolute value */
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movq_r2r(mm0, mm1);
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punpcklbw_r2r(mm6, mm0);
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punpckhbw_r2r(mm6, mm1);
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paddusw_r2r(mm0, mm7);
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paddusw_r2r(mm1, mm7);
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}
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int pix_abs16x16_xy2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
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{
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const UINT8 *p1, *p2, *p3;
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p1 = blk1;
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p2 = blk2;
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p3 = blk2 + lx;
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pxor_r2r(mm7, mm7); /* mm7 is accumulator */
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pxor_r2r(mm6, mm6); /* mm7 is zero constant */
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movq_m2r(mm_wtwo, mm5); /* one constant */
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do {
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sad_add_xy2(p1, p2, p2 + lx);
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sad_add_xy2(p1 + 8, p2 + 8, p2 + 8 + lx);
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p1 += lx;
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p2 += lx;
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} while (--h);
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return sad_end();
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}
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