2 * This file is part of Libav.
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/audiodsp.h"
28 int32_t ff_scalarproduct_int16_mmxext(const int16_t *v1, const int16_t *v2,
30 int32_t ff_scalarproduct_int16_sse2(const int16_t *v1, const int16_t *v2,
33 void ff_vector_clip_int32_mmx(int32_t *dst, const int32_t *src,
34 int32_t min, int32_t max, unsigned int len);
35 void ff_vector_clip_int32_sse2(int32_t *dst, const int32_t *src,
36 int32_t min, int32_t max, unsigned int len);
37 void ff_vector_clip_int32_int_sse2(int32_t *dst, const int32_t *src,
38 int32_t min, int32_t max, unsigned int len);
39 void ff_vector_clip_int32_sse4(int32_t *dst, const int32_t *src,
40 int32_t min, int32_t max, unsigned int len);
42 av_cold void ff_audiodsp_init_x86(AudioDSPContext *c)
44 int cpu_flags = av_get_cpu_flags();
46 if (EXTERNAL_MMX(cpu_flags))
47 c->vector_clip_int32 = ff_vector_clip_int32_mmx;
49 if (EXTERNAL_MMXEXT(cpu_flags))
50 c->scalarproduct_int16 = ff_scalarproduct_int16_mmxext;
52 if (INLINE_SSE(cpu_flags))
53 c->vector_clipf = ff_vector_clipf_sse;
55 if (EXTERNAL_SSE2(cpu_flags)) {
56 c->scalarproduct_int16 = ff_scalarproduct_int16_sse2;
57 if (cpu_flags & AV_CPU_FLAG_ATOM)
58 c->vector_clip_int32 = ff_vector_clip_int32_int_sse2;
60 c->vector_clip_int32 = ff_vector_clip_int32_sse2;
63 if (EXTERNAL_SSE4(cpu_flags))
64 c->vector_clip_int32 = ff_vector_clip_int32_sse4;