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 "config.h"
20#include "libavutil/attributes.h"
21#include "libavutil/cpu.h"
22#include "libavutil/x86/cpu.h"
23#include "libavcodec/idctdsp.h"
24#include "libavcodec/xvididct.h"
25
26#include "xvididct.h"
27
28av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
29                                   unsigned high_bit_depth)
30{
31#if HAVE_X86ASM
32    int cpu_flags = av_get_cpu_flags();
33
34    if (high_bit_depth ||
35        !(avctx->idct_algo == FF_IDCT_AUTO ||
36          avctx->idct_algo == FF_IDCT_XVID))
37        return;
38
39    if (EXTERNAL_SSE2(cpu_flags)) {
40        c->idct_put  = ff_xvid_idct_put_sse2;
41        c->idct_add  = ff_xvid_idct_add_sse2;
42        c->idct      = ff_xvid_idct_sse2;
43        c->perm_type = FF_IDCT_PERM_SSE2;
44    }
45#endif /* HAVE_X86ASM */
46}
47