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4e51e48ebd
x64 always has MMX, MMXEXT, SSE and SSE2 and this means that some functions for MMX, MMXEXT and 3dnow are always overridden by other functions (unless one e.g. explicitly disables SSE2) for x64. So given that the only systems that benefit from these functions are truely ancient 32bit x86s they are removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
87 lines
3.2 KiB
C
87 lines
3.2 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 libswresample
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*
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* libswresample 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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* libswresample 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 libswresample; 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/attributes.h"
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#include "libavutil/x86/cpu.h"
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#include "libswresample/swresample_internal.h"
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#define D(type, simd) \
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mix_1_1_func_type ff_mix_1_1_a_## type ## _ ## simd;\
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mix_2_1_func_type ff_mix_2_1_a_## type ## _ ## simd;
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D(float, sse)
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D(float, avx)
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D(int16, sse2)
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av_cold int swri_rematrix_init_x86(struct SwrContext *s){
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#if HAVE_X86ASM
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int mm_flags = av_get_cpu_flags();
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int nb_in = s->used_ch_count;
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int nb_out = s->out.ch_count;
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int num = nb_in * nb_out;
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int i,j;
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s->mix_1_1_simd = NULL;
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s->mix_2_1_simd = NULL;
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if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
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if(EXTERNAL_SSE2(mm_flags)) {
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s->mix_1_1_simd = ff_mix_1_1_a_int16_sse2;
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s->mix_2_1_simd = ff_mix_2_1_a_int16_sse2;
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}
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s->native_simd_matrix = av_calloc(num, 2 * sizeof(int16_t));
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s->native_simd_one = av_mallocz(2 * sizeof(int16_t));
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if (!s->native_simd_matrix || !s->native_simd_one)
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return AVERROR(ENOMEM);
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for(i=0; i<nb_out; i++){
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int sh = 0;
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for(j=0; j<nb_in; j++)
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sh = FFMAX(sh, FFABS(((int*)s->native_matrix)[i * nb_in + j]));
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sh = FFMAX(av_log2(sh) - 14, 0);
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for(j=0; j<nb_in; j++) {
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((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)+1] = 15 - sh;
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((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)] =
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((((int*)s->native_matrix)[i * nb_in + j]) + (1<<sh>>1)) >> sh;
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}
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}
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((int16_t*)s->native_simd_one)[1] = 14;
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((int16_t*)s->native_simd_one)[0] = 16384;
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} else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
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if(EXTERNAL_SSE(mm_flags)) {
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s->mix_1_1_simd = ff_mix_1_1_a_float_sse;
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s->mix_2_1_simd = ff_mix_2_1_a_float_sse;
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}
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if(EXTERNAL_AVX_FAST(mm_flags)) {
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s->mix_1_1_simd = ff_mix_1_1_a_float_avx;
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s->mix_2_1_simd = ff_mix_2_1_a_float_avx;
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}
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s->native_simd_matrix = av_calloc(num, sizeof(float));
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s->native_simd_one = av_mallocz(sizeof(float));
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if (!s->native_simd_matrix || !s->native_simd_one)
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return AVERROR(ENOMEM);
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memcpy(s->native_simd_matrix, s->native_matrix, num * sizeof(float));
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memcpy(s->native_simd_one, s->native_one, sizeof(float));
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}
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#endif
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return 0;
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}
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