diff options
Diffstat (limited to 'libavcodec/x86/synth_filter_init.c')
| -rw-r--r-- | libavcodec/x86/synth_filter_init.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/libavcodec/x86/synth_filter_init.c b/libavcodec/x86/synth_filter_init.c new file mode 100644 index 0000000000..9ef00cdb0a --- /dev/null +++ b/libavcodec/x86/synth_filter_init.c @@ -0,0 +1,74 @@ +/* + * 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(FFTContext *imdct, \ + float *synth_buf_ptr, int *synth_buf_offset, \ + float synth_buf2[32], const float window[512], \ + float out[32], const float in[32], float scale) \ +{ \ + float *synth_buf= synth_buf_ptr + *synth_buf_offset; \ + \ + imdct->imdct_half(imdct, synth_buf, in); \ + \ + 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_YASM +#if ARCH_X86_32 +SYNTH_FILTER_FUNC(sse) +#endif +SYNTH_FILTER_FUNC(sse2) +SYNTH_FILTER_FUNC(avx) +SYNTH_FILTER_FUNC(fma3) +#endif /* HAVE_YASM */ + +av_cold void ff_synth_filter_init_x86(SynthFilterContext *s) +{ +#if HAVE_YASM + int cpu_flags = av_get_cpu_flags(); + +#if ARCH_X86_32 + if (EXTERNAL_SSE(cpu_flags)) { + s->synth_filter_float = synth_filter_sse; + } +#endif + 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_YASM */ +} |