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  1. /*
  2.  * ARM NEON optimised Float DSP functions
  3.  * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #include <stdint.h>
  23.  
  24. #include "libavutil/attributes.h"
  25. #include "libavutil/cpu.h"
  26. #include "libavutil/float_dsp.h"
  27. #include "cpu.h"
  28.  
  29. void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1,
  30.                          int len);
  31.  
  32. void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
  33.                                 int len);
  34.  
  35. void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
  36.                                 int len);
  37.  
  38. void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul,
  39.                                 int len);
  40.  
  41. void ff_vector_fmul_window_neon(float *dst, const float *src0,
  42.                                 const float *src1, const float *win, int len);
  43.  
  44. void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
  45.                              const float *src2, int len);
  46.  
  47. void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
  48.                                  const float *src1, int len);
  49.  
  50. void ff_butterflies_float_neon(float *v1, float *v2, int len);
  51.  
  52. float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
  53.  
  54. av_cold void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp)
  55. {
  56.     int cpu_flags = av_get_cpu_flags();
  57.  
  58.     if (have_neon(cpu_flags)) {
  59.         fdsp->butterflies_float   = ff_butterflies_float_neon;
  60.         fdsp->scalarproduct_float = ff_scalarproduct_float_neon;
  61.         fdsp->vector_dmul_scalar  = ff_vector_dmul_scalar_neon;
  62.         fdsp->vector_fmul         = ff_vector_fmul_neon;
  63.         fdsp->vector_fmac_scalar  = ff_vector_fmac_scalar_neon;
  64.         fdsp->vector_fmul_add     = ff_vector_fmul_add_neon;
  65.         fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
  66.         fdsp->vector_fmul_scalar  = ff_vector_fmul_scalar_neon;
  67.         fdsp->vector_fmul_window  = ff_vector_fmul_window_neon;
  68.     }
  69. }
  70.