/*
  * Copyright (c) 2015 Ronald S. Bultje <rsbultje@gmail.com>
  *
  * 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/x86/cpu.h"
 
 #include "libavfilter/ssim.h"
 
 void ff_ssim_4x4_line_ssse3(const uint8_t *buf, ptrdiff_t buf_stride,
                             const uint8_t *ref, ptrdiff_t ref_stride,
                             int (*sums)[4], int w);

 void ff_ssim_4x4_line_xop  (const uint8_t *buf, ptrdiff_t buf_stride,
                             const uint8_t *ref, ptrdiff_t ref_stride,
                             int (*sums)[4], int w);

 float ff_ssim_end_line_sse4(const int (*sum0)[4], const int (*sum1)[4], int w);
 
 void ff_ssim_init_x86(SSIMDSPContext *dsp)
 {
     int cpu_flags = av_get_cpu_flags();
 
     if (ARCH_X86_64 && EXTERNAL_SSSE3(cpu_flags))
         dsp->ssim_4x4_line = ff_ssim_4x4_line_ssse3;
     if (EXTERNAL_SSE4(cpu_flags))
         dsp->ssim_end_line = ff_ssim_end_line_sse4;

     if (EXTERNAL_XOP(cpu_flags))
         dsp->ssim_4x4_line = ff_ssim_4x4_line_xop;

 }