ffmpeg/libavfilter/x86/vf_pullup_init.c

   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, ptrdiff_t s);
  27 int ff_pullup_filter_comb_mmx(const uint8_t *a, const uint8_t *b, ptrdiff_t s);
  28 int ff_pullup_filter_var_mmx (const uint8_t *a, const uint8_t *b, ptrdiff_t 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 }