lib/x86/x86state.c

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
   4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   5  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   6  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
   7  *                                                                  *
   8  * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009                *
   9  * by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
  10  *                                                                  *
  11  ********************************************************************
  12
  13   function:
  14     last mod: $Id: x86state.c 16503 2009-08-22 18:14:02Z giles $
  15
  16  ********************************************************************/
  17
  18 #include "x86int.h"
  19
  20 #if defined(OC_X86_ASM)
  21
  22 #include "../cpu.c"
  23
  24 /*This table has been modified from OC_FZIG_ZAG by baking a 4x4 transpose into
  25    each quadrant of the destination.*/
  26 static const unsigned char OC_FZIG_ZAG_MMX[128]={
  27    0, 8, 1, 2, 9,16,24,17,
  28   10, 3,32,11,18,25, 4,12,
  29    5,26,19,40,33,34,41,48,
  30   27, 6,13,20,28,21,14, 7,
  31   56,49,42,35,43,50,57,36,
  32   15,22,29,30,23,44,37,58,
  33   51,59,38,45,52,31,60,53,
  34   46,39,47,54,61,62,55,63,
  35   64,64,64,64,64,64,64,64,
  36   64,64,64,64,64,64,64,64,
  37   64,64,64,64,64,64,64,64,
  38   64,64,64,64,64,64,64,64,
  39   64,64,64,64,64,64,64,64,
  40   64,64,64,64,64,64,64,64,
  41   64,64,64,64,64,64,64,64,
  42   64,64,64,64,64,64,64,64,
  43 };
  44
  45 void oc_state_vtable_init_x86(oc_theora_state *_state){
  46   _state->cpu_flags=oc_cpu_flags_get();
  47   if(_state->cpu_flags&OC_CPU_X86_MMX){
  48     _state->opt_vtable.frag_copy=oc_frag_copy_mmx;
  49     _state->opt_vtable.frag_recon_intra=oc_frag_recon_intra_mmx;
  50     _state->opt_vtable.frag_recon_inter=oc_frag_recon_inter_mmx;
  51     _state->opt_vtable.frag_recon_inter2=oc_frag_recon_inter2_mmx;
  52     _state->opt_vtable.idct8x8=oc_idct8x8_mmx;
  53     _state->opt_vtable.state_frag_recon=oc_state_frag_recon_mmx;
  54     _state->opt_vtable.state_frag_copy_list=oc_state_frag_copy_list_mmx;
  55     _state->opt_vtable.state_loop_filter_frag_rows=
  56      oc_state_loop_filter_frag_rows_mmx;
  57     _state->opt_vtable.restore_fpu=oc_restore_fpu_mmx;
  58     _state->opt_data.dct_fzig_zag=OC_FZIG_ZAG_MMX;
  59   }
  60   else oc_state_vtable_init_c(_state);
  61 }
  62 #endif