2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "pixelutils.h"
24 int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1
, ptrdiff_t stride1
,
25 const uint8_t *src2
, ptrdiff_t stride2
);
26 int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1
, ptrdiff_t stride1
,
27 const uint8_t *src2
, ptrdiff_t stride2
);
29 int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1
, ptrdiff_t stride1
,
30 const uint8_t *src2
, ptrdiff_t stride2
);
31 int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1
, ptrdiff_t stride1
,
32 const uint8_t *src2
, ptrdiff_t stride2
);
33 int ff_pixelutils_sad_a_16x16_sse2(const uint8_t *src1
, ptrdiff_t stride1
,
34 const uint8_t *src2
, ptrdiff_t stride2
);
35 int ff_pixelutils_sad_u_16x16_sse2(const uint8_t *src1
, ptrdiff_t stride1
,
36 const uint8_t *src2
, ptrdiff_t stride2
);
38 void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn
*sad
, int aligned
)
40 int cpu_flags
= av_get_cpu_flags();
42 if (EXTERNAL_MMX(cpu_flags
)) {
43 sad
[2] = ff_pixelutils_sad_8x8_mmx
;
46 if (EXTERNAL_MMXEXT(cpu_flags
)) {
47 sad
[2] = ff_pixelutils_sad_8x8_mmxext
;
48 sad
[3] = ff_pixelutils_sad_16x16_mmxext
;
51 if (EXTERNAL_SSE2(cpu_flags
)) {
53 case 0: sad
[3] = ff_pixelutils_sad_16x16_sse2
; break; // src1 unaligned, src2 unaligned
54 case 1: sad
[3] = ff_pixelutils_sad_u_16x16_sse2
; break; // src1 aligned, src2 unaligned
55 case 2: sad
[3] = ff_pixelutils_sad_a_16x16_sse2
; break; // src1 aligned, src2 aligned