1 /*
2 * Copyright (c) 2015 Ronald S. Bultje <rsbultje@gmail.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/x86/cpu.h"
22
23 #include "libavfilter/ssim.h"
24
25 void ff_ssim_4x4_line_ssse3(const uint8_t *buf, ptrdiff_t buf_stride,
26 const uint8_t *ref, ptrdiff_t ref_stride,
27 int (*sums)[4], int w);
28 void ff_ssim_4x4_line_xop (const uint8_t *buf, ptrdiff_t buf_stride,
29 const uint8_t *ref, ptrdiff_t ref_stride,
30 int (*sums)[4], int w);
31 double ff_ssim_end_line_sse4(const int (*sum0)[4], const int (*sum1)[4], int w);
32
ff_ssim_init_x86(SSIMDSPContext * dsp)33 void ff_ssim_init_x86(SSIMDSPContext *dsp)
34 {
35 int cpu_flags = av_get_cpu_flags();
36
37 if (ARCH_X86_64 && EXTERNAL_SSSE3(cpu_flags))
38 dsp->ssim_4x4_line = ff_ssim_4x4_line_ssse3;
39 if (EXTERNAL_SSE4(cpu_flags))
40 dsp->ssim_end_line = ff_ssim_end_line_sse4;
41 if (EXTERNAL_XOP(cpu_flags))
42 dsp->ssim_4x4_line = ff_ssim_4x4_line_xop;
43 }
44