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  1. /*
  2.  * This file is part of FFmpeg.
  3.  *
  4.  * FFmpeg is free software; you can redistribute it and/or
  5.  * modify it under the terms of the GNU General Public
  6.  * License as published by the Free Software Foundation; either
  7.  * version 2 of the License, or (at your option) any later version.
  8.  *
  9.  * FFmpeg is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12.  * GNU General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU General Public License along
  15.  * with FFmpeg; if not, write to the Free Software
  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18.  
  19. #include "libavutil/attributes.h"
  20. #include "libavutil/cpu.h"
  21. #include "libavutil/mem.h"
  22. #include "libavutil/x86/asm.h"
  23. #include "libavutil/x86/cpu.h"
  24. #include "libavfilter/vf_pullup.h"
  25.  
  26. int ff_pullup_filter_diff_mmx(const uint8_t *a, const uint8_t *b, int s);
  27. int ff_pullup_filter_comb_mmx(const uint8_t *a, const uint8_t *b, int s);
  28. int ff_pullup_filter_var_mmx (const uint8_t *a, const uint8_t *b, int s);
  29.  
  30. av_cold void ff_pullup_init_x86(PullupContext *s)
  31. {
  32. #if HAVE_YASM
  33.     int cpu_flags = av_get_cpu_flags();
  34.  
  35.     if (EXTERNAL_MMX(cpu_flags)) {
  36.         s->diff = ff_pullup_filter_diff_mmx;
  37.         s->comb = ff_pullup_filter_comb_mmx;
  38.         s->var  = ff_pullup_filter_var_mmx;
  39.     }
  40. #endif
  41. }
  42.