mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.8 KiB
55 lines
1.8 KiB
/* |
|
* 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 "fft.h" |
|
|
|
av_cold void ff_fft_init_mmx(FFTContext *s) |
|
{ |
|
#if HAVE_YASM |
|
int has_vectors = av_get_cpu_flags(); |
|
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; |
|
} else if (has_vectors & AV_CPU_FLAG_3DNOWEXT && HAVE_AMD3DNOWEXT) { |
|
/* 3DNowEx for K7 */ |
|
s->imdct_calc = ff_imdct_calc_3dn2; |
|
s->imdct_half = ff_imdct_half_3dn2; |
|
s->fft_calc = ff_fft_calc_3dn2; |
|
} else if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) { |
|
/* 3DNow! for K6-2/3 */ |
|
s->imdct_calc = ff_imdct_calc_3dn; |
|
s->imdct_half = ff_imdct_half_3dn; |
|
s->fft_calc = ff_fft_calc_3dn; |
|
} |
|
#endif |
|
} |
|
|
|
#if CONFIG_DCT |
|
av_cold void ff_dct_init_mmx(DCTContext *s) |
|
{ |
|
int has_vectors = av_get_cpu_flags(); |
|
if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) |
|
s->dct32 = ff_dct32_float_sse; |
|
} |
|
#endif |
|
|
|
|