blob: 852c6b8d1e26c602048a582fc87e93ad98f14e33 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/cpu.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/dct.h"
#include "fft.h"
av_cold void ff_fft_init_mmx(FFTContext *s)
{
#if HAVE_YASM
int has_vectors = av_get_cpu_flags();
#if ARCH_X86_32
if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {
/* 3DNow! for K6-2/3 */
s->imdct_calc = ff_imdct_calc_3dnow;
s->imdct_half = ff_imdct_half_3dnow;
s->fft_calc = ff_fft_calc_3dnow;
}
if (has_vectors & AV_CPU_FLAG_3DNOWEXT && HAVE_AMD3DNOWEXT) {
/* 3DNowEx for K7 */
s->imdct_calc = ff_imdct_calc_3dnowext;
s->imdct_half = ff_imdct_half_3dnowext;
s->fft_calc = ff_fft_calc_3dnowext;
}
#endif
if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) {
/* SSE for P3/P4/K8 */
s->imdct_calc = ff_imdct_calc_sse;
s->imdct_half = ff_imdct_half_sse;
s->fft_permute = ff_fft_permute_sse;
s->fft_calc = ff_fft_calc_sse;
s->fft_permutation = FF_FFT_PERM_SWAP_LSBS;
}
if (has_vectors & AV_CPU_FLAG_AVX && HAVE_AVX && s->nbits >= 5) {
/* AVX for SB */
s->imdct_half = ff_imdct_half_avx;
s->fft_calc = ff_fft_calc_avx;
s->fft_permutation = FF_FFT_PERM_AVX;
}
#endif
}
#if CONFIG_DCT
av_cold void ff_dct_init_mmx(DCTContext *s)
{
#if HAVE_YASM
int has_vectors = av_get_cpu_flags();
if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE)
s->dct32 = ff_dct32_float_sse;
if (has_vectors & AV_CPU_FLAG_SSE2 && HAVE_SSE)
s->dct32 = ff_dct32_float_sse2;
if (has_vectors & AV_CPU_FLAG_AVX && HAVE_AVX)
s->dct32 = ff_dct32_float_avx;
#endif
}
#endif
|
