1 /*
2 * Copyright (C) 2019 Paul B Mahol
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/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/x86/asm.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavfilter/transpose.h"
26
27 void ff_transpose_8x8_8_sse2(uint8_t *src,
28 ptrdiff_t src_linesize,
29 uint8_t *dst,
30 ptrdiff_t dst_linesize);
31
32 void ff_transpose_8x8_16_sse2(uint8_t *src,
33 ptrdiff_t src_linesize,
34 uint8_t *dst,
35 ptrdiff_t dst_linesize);
36
ff_transpose_init_x86(TransVtable * v,int pixstep)37 av_cold void ff_transpose_init_x86(TransVtable *v, int pixstep)
38 {
39 int cpu_flags = av_get_cpu_flags();
40
41 if (EXTERNAL_SSE2(cpu_flags) && pixstep == 1) {
42 v->transpose_8x8 = ff_transpose_8x8_8_sse2;
43 }
44
45 if (EXTERNAL_SSE2(cpu_flags) && pixstep == 2) {
46 v->transpose_8x8 = ff_transpose_8x8_16_sse2;
47 }
48 }
49