LCOV - code coverage report
Current view: top level - libavutil - float_dsp.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 67 68 98.5 %
Date: 2017-12-15 02:19:58 Functions: 11 11 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright 2005 Balatoni Denes
       3             :  * Copyright 2006 Loren Merritt
       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 "config.h"
      23             : #include "attributes.h"
      24             : #include "float_dsp.h"
      25             : #include "mem.h"
      26             : 
      27      535539 : static void vector_fmul_c(float *dst, const float *src0, const float *src1,
      28             :                           int len)
      29             : {
      30             :     int i;
      31    65563827 :     for (i = 0; i < len; i++)
      32    65028288 :         dst[i] = src0[i] * src1[i];
      33      535539 : }
      34             : 
      35       22725 : static void vector_fmac_scalar_c(float *dst, const float *src, float mul,
      36             :                                  int len)
      37             : {
      38             :     int i;
      39     9769925 :     for (i = 0; i < len; i++)
      40     9747200 :         dst[i] += src[i] * mul;
      41       22725 : }
      42             : 
      43           3 : static void vector_dmac_scalar_c(double *dst, const double *src, double mul,
      44             :                                  int len)
      45             : {
      46             :     int i;
      47         771 :     for (i = 0; i < len; i++)
      48         768 :         dst[i] += src[i] * mul;
      49           3 : }
      50             : 
      51      509145 : static void vector_fmul_scalar_c(float *dst, const float *src, float mul,
      52             :                                  int len)
      53             : {
      54             :     int i;
      55    14362221 :     for (i = 0; i < len; i++)
      56    13853076 :         dst[i] = src[i] * mul;
      57      509145 : }
      58             : 
      59           3 : static void vector_dmul_scalar_c(double *dst, const double *src, double mul,
      60             :                                  int len)
      61             : {
      62             :     int i;
      63         771 :     for (i = 0; i < len; i++)
      64         768 :         dst[i] = src[i] * mul;
      65           3 : }
      66             : 
      67      203191 : static void vector_fmul_window_c(float *dst, const float *src0,
      68             :                                  const float *src1, const float *win, int len)
      69             : {
      70             :     int i, j;
      71             : 
      72      203191 :     dst  += len;
      73      203191 :     win  += len;
      74      203191 :     src0 += len;
      75             : 
      76    39533955 :     for (i = -len, j = len - 1; i < 0; i++, j--) {
      77    39330764 :         float s0 = src0[i];
      78    39330764 :         float s1 = src1[j];
      79    39330764 :         float wi = win[i];
      80    39330764 :         float wj = win[j];
      81    39330764 :         dst[i] = s0 * wj - s1 * wi;
      82    39330764 :         dst[j] = s0 * wi + s1 * wj;
      83             :     }
      84      203191 : }
      85             : 
      86     3862327 : static void vector_fmul_add_c(float *dst, const float *src0, const float *src1,
      87             :                               const float *src2, int len){
      88             :     int i;
      89             : 
      90   231481911 :     for (i = 0; i < len; i++)
      91   227619584 :         dst[i] = src0[i] * src1[i] + src2[i];
      92     3862327 : }
      93             : 
      94      403297 : static void vector_fmul_reverse_c(float *dst, const float *src0,
      95             :                                   const float *src1, int len)
      96             : {
      97             :     int i;
      98             : 
      99      403297 :     src1 += len-1;
     100   134968097 :     for (i = 0; i < len; i++)
     101   134564800 :         dst[i] = src0[i] * src1[-i];
     102      403297 : }
     103             : 
     104      505434 : static void butterflies_float_c(float *av_restrict v1, float *av_restrict v2,
     105             :                                 int len)
     106             : {
     107             :     int i;
     108             : 
     109     8080294 :     for (i = 0; i < len; i++) {
     110     7574860 :         float t = v1[i] - v2[i];
     111     7574860 :         v1[i] += v2[i];
     112     7574860 :         v2[i] = t;
     113             :     }
     114      505434 : }
     115             : 
     116     1426038 : float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len)
     117             : {
     118     1426038 :     float p = 0.0;
     119             :     int i;
     120             : 
     121    45817402 :     for (i = 0; i < len; i++)
     122    44391364 :         p += v1[i] * v2[i];
     123             : 
     124     1426038 :     return p;
     125             : }
     126             : 
     127         702 : av_cold AVFloatDSPContext *avpriv_float_dsp_alloc(int bit_exact)
     128             : {
     129         702 :     AVFloatDSPContext *fdsp = av_mallocz(sizeof(AVFloatDSPContext));
     130         702 :     if (!fdsp)
     131           0 :         return NULL;
     132             : 
     133         702 :     fdsp->vector_fmul = vector_fmul_c;
     134         702 :     fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
     135         702 :     fdsp->vector_fmul_scalar = vector_fmul_scalar_c;
     136         702 :     fdsp->vector_dmac_scalar = vector_dmac_scalar_c;
     137         702 :     fdsp->vector_dmul_scalar = vector_dmul_scalar_c;
     138         702 :     fdsp->vector_fmul_window = vector_fmul_window_c;
     139         702 :     fdsp->vector_fmul_add = vector_fmul_add_c;
     140         702 :     fdsp->vector_fmul_reverse = vector_fmul_reverse_c;
     141         702 :     fdsp->butterflies_float = butterflies_float_c;
     142         702 :     fdsp->scalarproduct_float = avpriv_scalarproduct_float_c;
     143             : 
     144             :     if (ARCH_AARCH64)
     145             :         ff_float_dsp_init_aarch64(fdsp);
     146             :     if (ARCH_ARM)
     147             :         ff_float_dsp_init_arm(fdsp);
     148             :     if (ARCH_PPC)
     149             :         ff_float_dsp_init_ppc(fdsp, bit_exact);
     150             :     if (ARCH_X86)
     151         702 :         ff_float_dsp_init_x86(fdsp);
     152             :     if (ARCH_MIPS)
     153             :         ff_float_dsp_init_mips(fdsp);
     154         702 :     return fdsp;
     155             : }

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