1/*
2 * audio resampling
3 * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * audio resampling
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28#include "libavutil/x86/cpu.h"
29#include "libswresample/resample.h"
30
31#define RESAMPLE_FUNCS(type, opt) \
32int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \
33                                      const void *src, int sz, int upd); \
34int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \
35                                      const void *src, int sz, int upd)
36
37RESAMPLE_FUNCS(int16,  mmxext);
38RESAMPLE_FUNCS(int16,  sse2);
39RESAMPLE_FUNCS(int16,  xop);
40RESAMPLE_FUNCS(float,  sse);
41RESAMPLE_FUNCS(float,  avx);
42RESAMPLE_FUNCS(float,  fma3);
43RESAMPLE_FUNCS(float,  fma4);
44RESAMPLE_FUNCS(double, sse2);
45
46void swri_resample_dsp_x86_init(ResampleContext *c)
47{
48    int av_unused mm_flags = av_get_cpu_flags();
49
50    switch(c->format){
51    case AV_SAMPLE_FMT_S16P:
52        if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) {
53            c->dsp.resample = c->linear ? ff_resample_linear_int16_mmxext
54                                        : ff_resample_common_int16_mmxext;
55        }
56        if (EXTERNAL_SSE2(mm_flags)) {
57            c->dsp.resample = c->linear ? ff_resample_linear_int16_sse2
58                                        : ff_resample_common_int16_sse2;
59        }
60        if (EXTERNAL_XOP(mm_flags)) {
61            c->dsp.resample = c->linear ? ff_resample_linear_int16_xop
62                                        : ff_resample_common_int16_xop;
63        }
64        break;
65    case AV_SAMPLE_FMT_FLTP:
66        if (EXTERNAL_SSE(mm_flags)) {
67            c->dsp.resample = c->linear ? ff_resample_linear_float_sse
68                                        : ff_resample_common_float_sse;
69        }
70        if (EXTERNAL_AVX(mm_flags)) {
71            c->dsp.resample = c->linear ? ff_resample_linear_float_avx
72                                        : ff_resample_common_float_avx;
73        }
74        if (EXTERNAL_FMA3(mm_flags)) {
75            c->dsp.resample = c->linear ? ff_resample_linear_float_fma3
76                                        : ff_resample_common_float_fma3;
77        }
78        if (EXTERNAL_FMA4(mm_flags)) {
79            c->dsp.resample = c->linear ? ff_resample_linear_float_fma4
80                                        : ff_resample_common_float_fma4;
81        }
82        break;
83    case AV_SAMPLE_FMT_DBLP:
84        if (EXTERNAL_SSE2(mm_flags)) {
85            c->dsp.resample = c->linear ? ff_resample_linear_double_sse2
86                                        : ff_resample_common_double_sse2;
87        }
88        break;
89    }
90}
91