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ffmpeg-4.2.2/libavcodec/x86/exrdsp_init.c 1.7 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * OpenEXR (.exr) image decoder
   *
   * 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/attributes.h"
  #include "libavutil/x86/cpu.h"
  #include "libavcodec/exrdsp.h"
  
  void ff_reorder_pixels_sse2(uint8_t *dst, const uint8_t *src, ptrdiff_t size);
  
  void ff_reorder_pixels_avx2(uint8_t *dst, const uint8_t *src, ptrdiff_t size);
  
  void ff_predictor_ssse3(uint8_t *src, ptrdiff_t size);
  
  void ff_predictor_avx(uint8_t *src, ptrdiff_t size);
  
  void ff_predictor_avx2(uint8_t *src, ptrdiff_t size);
  
  av_cold void ff_exrdsp_init_x86(ExrDSPContext *dsp)
  {
      int cpu_flags = av_get_cpu_flags();
  
      if (EXTERNAL_SSE2(cpu_flags)) {
          dsp->reorder_pixels = ff_reorder_pixels_sse2;
      }
      if (EXTERNAL_SSSE3(cpu_flags)) {
          dsp->predictor = ff_predictor_ssse3;
      }
      if (EXTERNAL_AVX(cpu_flags)) {
          dsp->predictor = ff_predictor_avx;
      }
      if (EXTERNAL_AVX2_FAST(cpu_flags)) {
          dsp->reorder_pixels = ff_reorder_pixels_avx2;
          dsp->predictor      = ff_predictor_avx2;
      }
  }