vp8/decoder/x86/x86_dsystemdependent.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 #include "vpx_ports/config.h"
  13 #include "vpx_ports/x86.h"
  14 #include "vp8/decoder/onyxd_int.h"
  15
  16
  17 #if HAVE_MMX
  18 void vp8_dequantize_b_impl_mmx(short *sq, short *dq, short *q);
  19
  20 void vp8_dequantize_b_mmx(BLOCKD *d)
  21 {
  22     short *sq = (short *) d->qcoeff;
  23     short *dq = (short *) d->dqcoeff;
  24     short *q = (short *) d->dequant;
  25     vp8_dequantize_b_impl_mmx(sq, dq, q);
  26 }
  27 #endif
  28
  29 void vp8_arch_x86_decode_init(VP8D_COMP *pbi)
  30 {
  31 #if CONFIG_RUNTIME_CPU_DETECT
  32     int flags = x86_simd_caps();
  33
  34     /* Note:
  35      *
  36      * This platform can be built without runtime CPU detection as well. If
  37      * you modify any of the function mappings present in this file, be sure
  38      * to also update them in static mapings (<arch>/filename_<arch>.h)
  39      */
  40     /* Override default functions with fastest ones for this CPU. */
  41 #if HAVE_MMX
  42     if (flags & HAS_MMX)
  43     {
  44         pbi->dequant.block               = vp8_dequantize_b_mmx;
  45         pbi->dequant.idct_add            = vp8_dequant_idct_add_mmx;
  46         pbi->dequant.dc_idct_add         = vp8_dequant_dc_idct_add_mmx;
  47         pbi->dequant.dc_idct_add_y_block = vp8_dequant_dc_idct_add_y_block_mmx;
  48         pbi->dequant.idct_add_y_block    = vp8_dequant_idct_add_y_block_mmx;
  49         pbi->dequant.idct_add_uv_block   = vp8_dequant_idct_add_uv_block_mmx;
  50     }
  51 #endif
  52 #if HAVE_SSE2
  53     if (flags & HAS_SSE2)
  54     {
  55         pbi->dequant.dc_idct_add_y_block = vp8_dequant_dc_idct_add_y_block_sse2;
  56         pbi->dequant.idct_add_y_block    = vp8_dequant_idct_add_y_block_sse2;
  57         pbi->dequant.idct_add_uv_block   = vp8_dequant_idct_add_uv_block_sse2;
  58     }
  59 #endif
  60
  61 #endif
  62 }