1 /*
2 * This file is part of FFmpeg.
3 *
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.
8 *
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.
13 *
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
17 */
18
19 #include <stddef.h>
20 #include <stdint.h>
21
22 #include "libavutil/cpu.h"
23 #include "libavutil/error.h"
24 #include "libavutil/imgutils.h"
25 #include "libavutil/imgutils_internal.h"
26 #include "libavutil/internal.h"
27
28 #include "cpu.h"
29
30 void ff_image_copy_plane_uc_from_sse4(uint8_t *dst, ptrdiff_t dst_linesize,
31 const uint8_t *src, ptrdiff_t src_linesize,
32 ptrdiff_t bytewidth, int height);
33
ff_image_copy_plane_uc_from_x86(uint8_t * dst,ptrdiff_t dst_linesize,const uint8_t * src,ptrdiff_t src_linesize,ptrdiff_t bytewidth,int height)34 int ff_image_copy_plane_uc_from_x86(uint8_t *dst, ptrdiff_t dst_linesize,
35 const uint8_t *src, ptrdiff_t src_linesize,
36 ptrdiff_t bytewidth, int height)
37 {
38 int cpu_flags = av_get_cpu_flags();
39 ptrdiff_t bw_aligned = FFALIGN(bytewidth, 64);
40
41 if (EXTERNAL_SSE4(cpu_flags) &&
42 bw_aligned <= dst_linesize && bw_aligned <= src_linesize)
43 ff_image_copy_plane_uc_from_sse4(dst, dst_linesize, src, src_linesize,
44 bw_aligned, height);
45 else
46 return AVERROR(ENOSYS);
47
48 return 0;
49 }
50