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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-06-19 03:08:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-06-28 00:36:27 +0200 |
| commit | 4ccf6e397139ad83bc7413f8cf7ec667be6ace3a (patch) | |
| tree | a6284fe635b4e5e5349ee0bb3b985c619e22608b /libswresample/x86 | |
| parent | 7803a040419f7abb82310fb02a109f6a411650d6 (diff) | |
| download | ffmpeg-4ccf6e397139ad83bc7413f8cf7ec667be6ace3a.tar.gz | |
swr: MMX2 & SSSE3 int16 resample core
about 4 times faster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample/x86')
| -rw-r--r-- | libswresample/x86/resample_mmx.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/libswresample/x86/resample_mmx.h b/libswresample/x86/resample_mmx.h new file mode 100644 index 0000000000..bbf23adf6f --- /dev/null +++ b/libswresample/x86/resample_mmx.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at> + * + * 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/x86_cpu.h" +#include "libavutil/cpu.h" + +int swri_resample_int16_mmx2 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx); +int swri_resample_int16_ssse3(struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx); + +DECLARE_ALIGNED(16, const uint64_t, ff_resample_int16_rounder)[2] = { 0x0000000000004000ULL, 0x0000000000000000ULL}; + +#define COMMON_CORE_INT16_MMX2 \ + x86_reg len= -2*c->filter_length;\ +__asm volatile(\ + "movq "MANGLE(ff_resample_int16_rounder)", %%mm0 \n\t"\ + "1: \n\t"\ + "movq (%1, %0), %%mm1 \n\t"\ + "pmaddwd (%2, %0), %%mm1 \n\t"\ + "paddd %%mm1, %%mm0 \n\t"\ + "add $8, %0 \n\t"\ + " js 1b \n\t"\ + "pshufw $0x0E, %%mm0, %%mm1 \n\t"\ + "paddd %%mm1, %%mm0 \n\t"\ + "psrad $15, %%mm0 \n\t"\ + "packssdw %%mm0, %%mm0 \n\t"\ + "movd %%mm0, (%3) \n\t"\ + : "+r" (len)\ + : "r" (((uint8_t*)(src+sample_index))-len),\ + "r" (((uint8_t*)filter)-len),\ + "r" (dst+dst_index)\ +); + +#define COMMON_CORE_INT16_SSSE3 \ + x86_reg len= -2*c->filter_length;\ +__asm volatile(\ + "movdqa "MANGLE(ff_resample_int16_rounder)", %%xmm0 \n\t"\ + "1: \n\t"\ + "movdqu (%1, %0), %%xmm1 \n\t"\ + "pmaddwd (%2, %0), %%xmm1 \n\t"\ + "paddd %%xmm1, %%xmm0 \n\t"\ + "add $16, %0 \n\t"\ + " js 1b \n\t"\ + "phaddd %%xmm0, %%xmm0 \n\t"\ + "phaddd %%xmm0, %%xmm0 \n\t"\ + "psrad $15, %%xmm0 \n\t"\ + "packssdw %%xmm0, %%xmm0 \n\t"\ + "movd %%xmm0, (%3) \n\t"\ + : "+r" (len)\ + : "r" (((uint8_t*)(src+sample_index))-len),\ + "r" (((uint8_t*)filter)-len),\ + "r" (dst+dst_index)\ +); |