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
18void vp8_dequantize_b_impl_mmx(short *sq, short *dq, short *q);
19
20static void 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
29void vp8_arch_x86_decode_init(VP8D_COMP *pbi)
30{
31    int flags = x86_simd_caps();
32
33    /* Note:
34     *
35     * This platform can be built without runtime CPU detection as well. If
36     * you modify any of the function mappings present in this file, be sure
37     * to also update them in static mapings (<arch>/filename_<arch>.h)
38     */
39#if CONFIG_RUNTIME_CPU_DETECT
40    /* Override default functions with fastest ones for this CPU. */
41#if HAVE_MMX
42    if (flags & HAS_MMX)
43    {
44        pbi->dequant.block               = 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}
63