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  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_decode_hf_sse(float dst[DCA_SUBBANDS][8], const int vq_num[DCA_SUBBANDS],
  27.                       const int8_t hf_vq[1024][32], intptr_t vq_offset,
  28.                       int scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end);
  29. void ff_decode_hf_sse2(float dst[DCA_SUBBANDS][8], const int vq_num[DCA_SUBBANDS],
  30.                        const int8_t hf_vq[1024][32], intptr_t vq_offset,
  31.                        int scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end);
  32. void ff_decode_hf_sse4(float dst[DCA_SUBBANDS][8], const int vq_num[DCA_SUBBANDS],
  33.                        const int8_t hf_vq[1024][32], intptr_t vq_offset,
  34.                        int scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end);
  35. void ff_dca_lfe_fir0_sse(float *out, const float *in, const float *coefs);
  36. void ff_dca_lfe_fir1_sse(float *out, const float *in, const float *coefs);
  37. void ff_dca_lfe_fir0_fma3(float *out, const float *in, const float *coefs);
  38.  
  39. av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
  40. {
  41.     int cpu_flags = av_get_cpu_flags();
  42.  
  43.     if (EXTERNAL_SSE(cpu_flags)) {
  44. #if ARCH_X86_32
  45.         s->decode_hf = ff_decode_hf_sse;
  46. #endif
  47.         s->lfe_fir[0]        = ff_dca_lfe_fir0_sse;
  48.         s->lfe_fir[1]        = ff_dca_lfe_fir1_sse;
  49.     }
  50.  
  51.     if (EXTERNAL_SSE2(cpu_flags)) {
  52.         s->decode_hf = ff_decode_hf_sse2;
  53.     }
  54.  
  55.     if (EXTERNAL_SSE4(cpu_flags)) {
  56.         s->decode_hf = ff_decode_hf_sse4;
  57.     }
  58.  
  59.     if (EXTERNAL_FMA3(cpu_flags)) {
  60.         s->lfe_fir[0]        = ff_dca_lfe_fir0_fma3;
  61.     }
  62. }
  63.  
  64.  
  65. #define SYNTH_FILTER_FUNC(opt)                                                 \
  66. void ff_synth_filter_inner_##opt(float *synth_buf_ptr, float synth_buf2[32],   \
  67.                                  const float window[512],                      \
  68.                                  float out[32], intptr_t offset, float scale); \
  69. static void synth_filter_##opt(FFTContext *imdct,                              \
  70.                                float *synth_buf_ptr, int *synth_buf_offset,    \
  71.                                float synth_buf2[32], const float window[512],  \
  72.                                float out[32], const float in[32], float scale) \
  73. {                                                                              \
  74.     float *synth_buf= synth_buf_ptr + *synth_buf_offset;                       \
  75.                                                                                \
  76.     imdct->imdct_half(imdct, synth_buf, in);                                   \
  77.                                                                                \
  78.     ff_synth_filter_inner_##opt(synth_buf, synth_buf2, window,                 \
  79.                                 out, *synth_buf_offset, scale);                \
  80.                                                                                \
  81.     *synth_buf_offset = (*synth_buf_offset - 32) & 511;                        \
  82. }                                                                              \
  83.  
  84. #if HAVE_YASM
  85. #if ARCH_X86_32
  86. SYNTH_FILTER_FUNC(sse)
  87. #endif
  88. SYNTH_FILTER_FUNC(sse2)
  89. SYNTH_FILTER_FUNC(avx)
  90. SYNTH_FILTER_FUNC(fma3)
  91. #endif /* HAVE_YASM */
  92.  
  93. av_cold void ff_synth_filter_init_x86(SynthFilterContext *s)
  94. {
  95. #if HAVE_YASM
  96.     int cpu_flags = av_get_cpu_flags();
  97.  
  98. #if ARCH_X86_32
  99.     if (EXTERNAL_SSE(cpu_flags)) {
  100.         s->synth_filter_float = synth_filter_sse;
  101.     }
  102. #endif
  103.     if (EXTERNAL_SSE2(cpu_flags)) {
  104.         s->synth_filter_float = synth_filter_sse2;
  105.     }
  106.     if (EXTERNAL_AVX_FAST(cpu_flags)) {
  107.         s->synth_filter_float = synth_filter_avx;
  108.     }
  109.     if (EXTERNAL_FMA3(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_AVXSLOW)) {
  110.         s->synth_filter_float = synth_filter_fma3;
  111.     }
  112. #endif /* HAVE_YASM */
  113. }
  114.