mirror of
https://github.com/FFmpeg/FFmpeg.git
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107 lines
3.9 KiB
C
107 lines
3.9 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#define TX_FLOAT
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#include "libavutil/tx_priv.h"
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#include "libavutil/attributes.h"
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#include "libavutil/x86/cpu.h"
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void ff_fft2_float_sse3 (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft4_inv_float_sse2 (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft4_fwd_float_sse2 (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft8_float_sse3 (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft8_float_avx (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft16_float_avx (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft16_float_fma3 (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft32_float_avx (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_fft32_float_fma3 (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_split_radix_fft_float_avx (AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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void ff_split_radix_fft_float_avx2(AVTXContext *s, void *out, void *in, ptrdiff_t stride);
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av_cold void ff_tx_init_float_x86(AVTXContext *s, av_tx_fn *tx)
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{
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int cpu_flags = av_get_cpu_flags();
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int gen_revtab = 0, basis, revtab_interleave;
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if (s->flags & AV_TX_UNALIGNED)
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return;
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if (ff_tx_type_is_mdct(s->type))
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return;
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#define TXFN(fn, gentab, sr_basis, interleave) \
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do { \
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*tx = fn; \
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gen_revtab = gentab; \
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basis = sr_basis; \
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revtab_interleave = interleave; \
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} while (0)
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if (s->n == 1) {
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if (EXTERNAL_SSE2(cpu_flags)) {
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if (s->m == 4 && s->inv)
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TXFN(ff_fft4_inv_float_sse2, 0, 0, 0);
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else if (s->m == 4)
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TXFN(ff_fft4_fwd_float_sse2, 0, 0, 0);
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}
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if (EXTERNAL_SSE3(cpu_flags)) {
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if (s->m == 2)
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TXFN(ff_fft2_float_sse3, 0, 0, 0);
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else if (s->m == 8)
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TXFN(ff_fft8_float_sse3, 1, 8, 0);
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}
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if (EXTERNAL_AVX_FAST(cpu_flags)) {
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if (s->m == 8)
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TXFN(ff_fft8_float_avx, 1, 8, 0);
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else if (s->m == 16)
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TXFN(ff_fft16_float_avx, 1, 8, 2);
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#if ARCH_X86_64
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else if (s->m == 32)
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TXFN(ff_fft32_float_avx, 1, 8, 2);
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else if (s->m >= 64 && s->m <= 131072 && !(s->flags & AV_TX_INPLACE))
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TXFN(ff_split_radix_fft_float_avx, 1, 8, 2);
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#endif
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}
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if (EXTERNAL_FMA3_FAST(cpu_flags)) {
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if (s->m == 16)
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TXFN(ff_fft16_float_fma3, 1, 8, 2);
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#if ARCH_X86_64
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else if (s->m == 32)
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TXFN(ff_fft32_float_fma3, 1, 8, 2);
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#endif
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}
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#if ARCH_X86_64
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if (EXTERNAL_AVX2_FAST(cpu_flags)) {
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if (s->m >= 64 && s->m <= 131072 && !(s->flags & AV_TX_INPLACE))
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TXFN(ff_split_radix_fft_float_avx2, 1, 8, 2);
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}
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#endif
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}
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if (gen_revtab)
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ff_tx_gen_split_radix_parity_revtab(s->revtab, s->m, s->inv, basis,
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revtab_interleave);
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#undef TXFN
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}
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