libavcodec/x86/vorbisdsp_init.c

   1 /*
   2  * Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
   3  *
   4  * This file is part of Libav.
   5  *
   6  * Libav is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * Libav is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with Libav; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include "config.h"
  22 #include "libavutil/attributes.h"
  23 #include "libavutil/cpu.h"
  24 #include "libavcodec/vorbisdsp.h"
  25
  26 void ff_vorbis_inverse_coupling_3dnow(float *mag, float *ang,
  27                                       intptr_t blocksize);
  28 void ff_vorbis_inverse_coupling_sse(float *mag, float *ang,
  29                                     intptr_t blocksize);
  30
  31 av_cold void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp)
  32 {
  33 #if HAVE_YASM
  34     int mm_flags = av_get_cpu_flags();
  35
  36 #if ARCH_X86_32
  37     if (mm_flags & AV_CPU_FLAG_3DNOW)
  38         dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_3dnow;
  39 #endif /* ARCH_X86_32 */
  40     if (mm_flags & AV_CPU_FLAG_SSE)
  41         dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_sse;
  42 #endif /* HAVE_YASM */
  43 }