git.sesse.net Git - ffmpeg/blob - libavcodec/x86/dcadsp_init.c

   1 /*
   2  * Copyright (c) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com>
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include "libavutil/attributes.h"
  22 #include "libavutil/cpu.h"
  23 #include "libavutil/x86/cpu.h"
  24 #include "libavcodec/dcadsp.h"
  25
  26 void ff_dca_lfe_fir0_sse(float *out, const float *in, const float *coefs);
  27 void ff_dca_lfe_fir1_sse(float *out, const float *in, const float *coefs);
  28 void ff_dca_lfe_fir0_fma3(float *out, const float *in, const float *coefs);
  29
  30 av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
  31 {
  32     int cpu_flags = av_get_cpu_flags();
  33
  34     if (EXTERNAL_SSE(cpu_flags)) {
  35         s->lfe_fir[0]        = ff_dca_lfe_fir0_sse;
  36         s->lfe_fir[1]        = ff_dca_lfe_fir1_sse;
  37     }
  38
  39     if (EXTERNAL_FMA3(cpu_flags)) {
  40         s->lfe_fir[0]        = ff_dca_lfe_fir0_fma3;
  41     }
  42 }
  43
  44
  45 #define SYNTH_FILTER_FUNC(opt)                                                 \
  46 void ff_synth_filter_inner_##opt(float *synth_buf_ptr, float synth_buf2[32],   \
  47                                  const float window[512],                      \
  48                                  float out[32], intptr_t offset, float scale); \
  49 static void synth_filter_##opt(FFTContext *imdct,                              \
  50                                float *synth_buf_ptr, int *synth_buf_offset,    \
  51                                float synth_buf2[32], const float window[512],  \
  52                                float out[32], const float in[32], float scale) \
  53 {                                                                              \
  54     float *synth_buf= synth_buf_ptr + *synth_buf_offset;                       \
  55                                                                                \
  56     imdct->imdct_half(imdct, synth_buf, in);                                   \
  57                                                                                \
  58     ff_synth_filter_inner_##opt(synth_buf, synth_buf2, window,                 \
  59                                 out, *synth_buf_offset, scale);                \
  60                                                                                \
  61     *synth_buf_offset = (*synth_buf_offset - 32) & 511;                        \
  62 }                                                                              \
  63
  64 #if HAVE_YASM
  65 #if ARCH_X86_32
  66 SYNTH_FILTER_FUNC(sse)
  67 #endif
  68 SYNTH_FILTER_FUNC(sse2)
  69 SYNTH_FILTER_FUNC(avx)
  70 SYNTH_FILTER_FUNC(fma3)
  71 #endif /* HAVE_YASM */
  72
  73 av_cold void ff_synth_filter_init_x86(SynthFilterContext *s)
  74 {
  75 #if HAVE_YASM
  76     int cpu_flags = av_get_cpu_flags();
  77
  78 #if ARCH_X86_32
  79     if (EXTERNAL_SSE(cpu_flags)) {
  80         s->synth_filter_float = synth_filter_sse;
  81     }
  82 #endif
  83     if (EXTERNAL_SSE2(cpu_flags)) {
  84         s->synth_filter_float = synth_filter_sse2;
  85     }
  86     if (EXTERNAL_AVX_FAST(cpu_flags)) {
  87         s->synth_filter_float = synth_filter_avx;
  88     }
  89     if (EXTERNAL_FMA3(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_AVXSLOW)) {
  90         s->synth_filter_float = synth_filter_fma3;
  91     }
  92 #endif /* HAVE_YASM */
  93 }