yading@10: /*
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include "libavutil/cpu.h"
yading@10: #include "libavutil/x86/cpu.h"
yading@10: #include "libavcodec/dct.h"
yading@10: #include "fft.h"
yading@10: 
yading@10: av_cold void ff_fft_init_x86(FFTContext *s)
yading@10: {
yading@10:     int has_vectors = av_get_cpu_flags();
yading@10: #if ARCH_X86_32
yading@10:     if (EXTERNAL_AMD3DNOW(has_vectors)) {
yading@10:         /* 3DNow! for K6-2/3 */
yading@10:         s->imdct_calc = ff_imdct_calc_3dnow;
yading@10:         s->imdct_half = ff_imdct_half_3dnow;
yading@10:         s->fft_calc   = ff_fft_calc_3dnow;
yading@10:     }
yading@10:     if (EXTERNAL_AMD3DNOWEXT(has_vectors)) {
yading@10:         /* 3DNowEx for K7 */
yading@10:         s->imdct_calc = ff_imdct_calc_3dnowext;
yading@10:         s->imdct_half = ff_imdct_half_3dnowext;
yading@10:         s->fft_calc   = ff_fft_calc_3dnowext;
yading@10:     }
yading@10: #endif
yading@10:     if (EXTERNAL_SSE(has_vectors)) {
yading@10:         /* SSE for P3/P4/K8 */
yading@10:         s->imdct_calc  = ff_imdct_calc_sse;
yading@10:         s->imdct_half  = ff_imdct_half_sse;
yading@10:         s->fft_permute = ff_fft_permute_sse;
yading@10:         s->fft_calc    = ff_fft_calc_sse;
yading@10:         s->fft_permutation = FF_FFT_PERM_SWAP_LSBS;
yading@10:     }
yading@10:     if (EXTERNAL_AVX(has_vectors) && s->nbits >= 5) {
yading@10:         /* AVX for SB */
yading@10:         s->imdct_half      = ff_imdct_half_avx;
yading@10:         s->fft_calc        = ff_fft_calc_avx;
yading@10:         s->fft_permutation = FF_FFT_PERM_AVX;
yading@10:     }
yading@10: }
yading@10: 
yading@10: #if CONFIG_DCT
yading@10: av_cold void ff_dct_init_x86(DCTContext *s)
yading@10: {
yading@10:     int has_vectors = av_get_cpu_flags();
yading@10:     if (EXTERNAL_SSE(has_vectors))
yading@10:         s->dct32 = ff_dct32_float_sse;
yading@10:     if (EXTERNAL_SSE2(has_vectors))
yading@10:         s->dct32 = ff_dct32_float_sse2;
yading@10:     if (EXTERNAL_AVX(has_vectors))
yading@10:         s->dct32 = ff_dct32_float_avx;
yading@10: }
yading@10: #endif