text: /*
   * VP6 MMX/SSE2 optimizations
   * Copyright (C) 2009  Sebastien Lucas <sebastien.lucas@gmail.com>
   * Copyright (C) 2009  Zuxy Meng <zuxy.meng@gmail.com>
   *
   * This file is part of Libav.
   *
   * Libav 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.
   *
   * Libav 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 Libav; 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/cpu.h"
  #include "libavutil/x86/asm.h"
  #include "libavutil/x86/cpu.h"
  #include "libavcodec/vp56dsp.h"
  
  void ff_vp6_filter_diag4_mmx(uint8_t *dst, uint8_t *src, int stride,
                               const int16_t *h_weights,const int16_t *v_weights);
  void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride,
                                const int16_t *h_weights,const int16_t *v_weights);
  
  av_cold void ff_vp6dsp_init_x86(VP56DSPContext* c, enum AVCodecID codec)
  {
      int cpu_flags = av_get_cpu_flags();
  
  #if ARCH_X86_32
      if (EXTERNAL_MMX(cpu_flags)) {
          c->vp6_filter_diag4 = ff_vp6_filter_diag4_mmx;
      }
  #endif
      if (EXTERNAL_SSE2(cpu_flags)) {
          c->vp6_filter_diag4 = ff_vp6_filter_diag4_sse2;
      }
  }
  