70 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			70 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
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								/*
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								 * ARM NEON optimised Float DSP functions
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								 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
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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 <stdint.h>
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								#include "libavutil/attributes.h"
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								#include "libavutil/cpu.h"
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								#include "libavutil/float_dsp.h"
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								#include "cpu.h"
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								void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1,
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								                         int len);
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								void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
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								                                int len);
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								void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
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								                                int len);
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								void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul,
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								                                int len);
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								void ff_vector_fmul_window_neon(float *dst, const float *src0,
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								                                const float *src1, const float *win, int len);
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								void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
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								                             const float *src2, int len);
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								void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
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								                                 const float *src1, int len);
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								void ff_butterflies_float_neon(float *v1, float *v2, int len);
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								float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
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								av_cold void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp)
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								{
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								    int cpu_flags = av_get_cpu_flags();
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								    if (have_neon(cpu_flags)) {
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								        fdsp->butterflies_float   = ff_butterflies_float_neon;
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								        fdsp->scalarproduct_float = ff_scalarproduct_float_neon;
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								        fdsp->vector_dmul_scalar  = ff_vector_dmul_scalar_neon;
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								        fdsp->vector_fmul         = ff_vector_fmul_neon;
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								        fdsp->vector_fmac_scalar  = ff_vector_fmac_scalar_neon;
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								        fdsp->vector_fmul_add     = ff_vector_fmul_add_neon;
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								        fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
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								        fdsp->vector_fmul_scalar  = ff_vector_fmul_scalar_neon;
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								        fdsp->vector_fmul_window  = ff_vector_fmul_window_neon;
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								    }
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								}
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