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/*
* Copyright (c) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/synth_filter.h"
#define SYNTH_FILTER_FUNC(opt) \
void ff_synth_filter_inner_##opt(float *synth_buf_ptr, float synth_buf2[32], \
const float window[512], \
float out[32], intptr_t offset, float scale); \
static void synth_filter_##opt(AVTXContext *imdct, \
float *synth_buf_ptr, int *synth_buf_offset, \
float synth_buf2[32], const float window[512], \
float out[32], float in[32], float scale, \
av_tx_fn imdct_fn) \
{ \
float *synth_buf= synth_buf_ptr + *synth_buf_offset; \
\
imdct_fn(imdct, synth_buf, in, sizeof(float)); \
\
ff_synth_filter_inner_##opt(synth_buf, synth_buf2, window, \
out, *synth_buf_offset, scale); \
\
*synth_buf_offset = (*synth_buf_offset - 32) & 511; \
} \
#if HAVE_X86ASM
SYNTH_FILTER_FUNC(sse2)
SYNTH_FILTER_FUNC(avx)
SYNTH_FILTER_FUNC(fma3)
#endif /* HAVE_X86ASM */
av_cold void ff_synth_filter_init_x86(SynthFilterContext *s)
{
#if HAVE_X86ASM
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_SSE2(cpu_flags)) {
s->synth_filter_float = synth_filter_sse2;
}
if (EXTERNAL_AVX_FAST(cpu_flags)) {
s->synth_filter_float = synth_filter_avx;
}
if (EXTERNAL_FMA3_FAST(cpu_flags)) {
s->synth_filter_float = synth_filter_fma3;
}
#endif /* HAVE_X86ASM */
}
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