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