mirror of
https://github.com/FFmpeg/FFmpeg.git
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71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/*
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* Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
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*
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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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#include "libavutil/x86_cpu.h"
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#include "libavutil/cpu.h"
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#include "libswresample/swresample_internal.h"
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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);
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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);
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DECLARE_ALIGNED(16, const uint64_t, ff_resample_int16_rounder)[2] = { 0x0000000000004000ULL, 0x0000000000000000ULL};
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#define COMMON_CORE_INT16_MMX2 \
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x86_reg len= -2*c->filter_length;\
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__asm__ volatile(\
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"movq "MANGLE(ff_resample_int16_rounder)", %%mm0 \n\t"\
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"1: \n\t"\
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"movq (%1, %0), %%mm1 \n\t"\
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"pmaddwd (%2, %0), %%mm1 \n\t"\
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"paddd %%mm1, %%mm0 \n\t"\
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"add $8, %0 \n\t"\
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" js 1b \n\t"\
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"pshufw $0x0E, %%mm0, %%mm1 \n\t"\
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"paddd %%mm1, %%mm0 \n\t"\
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"psrad $15, %%mm0 \n\t"\
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"packssdw %%mm0, %%mm0 \n\t"\
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"movd %%mm0, (%3) \n\t"\
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: "+r" (len)\
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: "r" (((uint8_t*)(src+sample_index))-len),\
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"r" (((uint8_t*)filter)-len),\
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"r" (dst+dst_index)\
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);
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#define COMMON_CORE_INT16_SSSE3 \
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x86_reg len= -2*c->filter_length;\
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__asm__ volatile(\
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"movdqa "MANGLE(ff_resample_int16_rounder)", %%xmm0 \n\t"\
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"1: \n\t"\
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"movdqu (%1, %0), %%xmm1 \n\t"\
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"pmaddwd (%2, %0), %%xmm1 \n\t"\
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"paddd %%xmm1, %%xmm0 \n\t"\
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"add $16, %0 \n\t"\
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" js 1b \n\t"\
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"phaddd %%xmm0, %%xmm0 \n\t"\
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"phaddd %%xmm0, %%xmm0 \n\t"\
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"psrad $15, %%xmm0 \n\t"\
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"packssdw %%xmm0, %%xmm0 \n\t"\
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"movd %%xmm0, (%3) \n\t"\
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: "+r" (len)\
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: "r" (((uint8_t*)(src+sample_index))-len),\
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"r" (((uint8_t*)filter)-len),\
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"r" (dst+dst_index)\
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);
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