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float_dsp.c
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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 
24 #include "float_dsp.h"
25 
26 static void vector_fmul_c(float *dst, const float *src0, const float *src1,
27  int len)
28 {
29  int i;
30  for (i = 0; i < len; i++)
31  dst[i] = src0[i] * src1[i];
32 }
33 
34 static void vector_fmac_scalar_c(float *dst, const float *src, float mul,
35  int len)
36 {
37  int i;
38  for (i = 0; i < len; i++)
39  dst[i] += src[i] * mul;
40 }
41 
42 static void vector_fmul_scalar_c(float *dst, const float *src, float mul,
43  int len)
44 {
45  int i;
46  for (i = 0; i < len; i++)
47  dst[i] = src[i] * mul;
48 }
49 
50 static void vector_dmul_scalar_c(double *dst, const double *src, double mul,
51  int len)
52 {
53  int i;
54  for (i = 0; i < len; i++)
55  dst[i] = src[i] * mul;
56 }
57 
58 void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
59 {
60  fdsp->vector_fmul = vector_fmul_c;
64 
65 #if ARCH_ARM
67 #elif ARCH_PPC
68  ff_float_dsp_init_ppc(fdsp, bit_exact);
69 #elif ARCH_X86
71 #elif ARCH_MIPS
73 #endif
74 }