vpx_scale/win32/scalesystemdependent.c

   1 /*
   2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11
  12 /****************************************************************************
  13 *
  14 *   Module Title :     system_dependent.c
  15 *
  16 *   Description  :     Miscellaneous system dependent functions
  17 *
  18 ****************************************************************************/
  19
  20 /****************************************************************************
  21 *  Header Files
  22 ****************************************************************************/
  23 #include "vpx_scale/vpxscale.h"
  24 #include "cpuidlib.h"
  25
  26 /****************************************************************************
  27 *  Imports
  28 *****************************************************************************/
  29 extern void register_generic_scalers(void);
  30 extern void register_mmxscalers(void);
  31
  32 /****************************************************************************
  33  *
  34  *  ROUTINE       : post_proc_machine_specific_config
  35  *
  36  *  INPUTS        : UINT32 Version : Codec version number.
  37  *
  38  *  OUTPUTS       : None.
  39  *
  40  *  RETURNS       : void
  41  *
  42  *  FUNCTION      : Checks for machine specifc features such as MMX support
  43  *                  sets appropriate flags and function pointers.
  44  *
  45  *  SPECIAL NOTES : None.
  46  *
  47  ****************************************************************************/
  48 void
  49 vp8_scale_machine_specific_config(void)
  50 {
  51     // If MMX supported then set to use MMX versions of functions else
  52     // use original 'C' versions.
  53     int mmx_enabled;
  54     int xmm_enabled;
  55     int wmt_enabled;
  56
  57     vpx_get_processor_flags(&mmx_enabled, &xmm_enabled, &wmt_enabled);
  58
  59     if (mmx_enabled || xmm_enabled || wmt_enabled)
  60     {
  61         register_mmxscalers();
  62     }
  63     else
  64     {
  65         vp8_horizontal_line_1_2_scale        = vp8cx_horizontal_line_1_2_scale_c;
  66         vp8_vertical_band_1_2_scale          = vp8cx_vertical_band_1_2_scale_c;
  67         vp8_last_vertical_band_1_2_scale      = vp8cx_last_vertical_band_1_2_scale_c;
  68         vp8_horizontal_line_3_5_scale        = vp8cx_horizontal_line_3_5_scale_c;
  69         vp8_vertical_band_3_5_scale          = vp8cx_vertical_band_3_5_scale_c;
  70         vp8_last_vertical_band_3_5_scale      = vp8cx_last_vertical_band_3_5_scale_c;
  71         vp8_horizontal_line_3_4_scale        = vp8cx_horizontal_line_3_4_scale_c;
  72         vp8_vertical_band_3_4_scale          = vp8cx_vertical_band_3_4_scale_c;
  73         vp8_last_vertical_band_3_4_scale      = vp8cx_last_vertical_band_3_4_scale_c;
  74         vp8_horizontal_line_2_3_scale        = vp8cx_horizontal_line_2_3_scale_c;
  75         vp8_vertical_band_2_3_scale          = vp8cx_vertical_band_2_3_scale_c;
  76         vp8_last_vertical_band_2_3_scale      = vp8cx_last_vertical_band_2_3_scale_c;
  77         vp8_horizontal_line_4_5_scale        = vp8cx_horizontal_line_4_5_scale_c;
  78         vp8_vertical_band_4_5_scale          = vp8cx_vertical_band_4_5_scale_c;
  79         vp8_last_vertical_band_4_5_scale      = vp8cx_last_vertical_band_4_5_scale_c;
  80
  81
  82         vp8_vertical_band_5_4_scale           = vp8cx_vertical_band_5_4_scale_c;
  83         vp8_vertical_band_5_3_scale           = vp8cx_vertical_band_5_3_scale_c;
  84         vp8_vertical_band_2_1_scale           = vp8cx_vertical_band_2_1_scale_c;
  85         vp8_vertical_band_2_1_scale_i         = vp8cx_vertical_band_2_1_scale_i_c;
  86         vp8_horizontal_line_2_1_scale         = vp8cx_horizontal_line_2_1_scale_c;
  87         vp8_horizontal_line_5_3_scale         = vp8cx_horizontal_line_5_3_scale_c;
  88         vp8_horizontal_line_5_4_scale         = vp8cx_horizontal_line_5_4_scale_c;
  89
  90     }
  91 }