2 * Copyright 2005 Balatoni Denes
3 * Copyright 2006 Loren Merritt
5 * This file is part of FFmpeg.
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.
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.
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
23 #include "attributes.h"
24 #include "float_dsp.h"
27 static void vector_fmul_c(float *dst, const float *src0, const float *src1,
31 for (i = 0; i < len; i++)
32 dst[i] = src0[i] * src1[i];
35 static void vector_dmul_c(double *dst, const double *src0, const double *src1,
39 for (i = 0; i < len; i++)
40 dst[i] = src0[i] * src1[i];
43 static void vector_fmac_scalar_c(float *dst, const float *src, float mul,
47 for (i = 0; i < len; i++)
48 dst[i] += src[i] * mul;
51 static void vector_dmac_scalar_c(double *dst, const double *src, double mul,
55 for (i = 0; i < len; i++)
56 dst[i] += src[i] * mul;
59 static void vector_fmul_scalar_c(float *dst, const float *src, float mul,
63 for (i = 0; i < len; i++)
64 dst[i] = src[i] * mul;
67 static void vector_dmul_scalar_c(double *dst, const double *src, double mul,
71 for (i = 0; i < len; i++)
72 dst[i] = src[i] * mul;
75 static void vector_fmul_window_c(float *dst, const float *src0,
76 const float *src1, const float *win, int len)
84 for (i = -len, j = len - 1; i < 0; i++, j--) {
89 dst[i] = s0 * wj - s1 * wi;
90 dst[j] = s0 * wi + s1 * wj;
94 static void vector_fmul_add_c(float *dst, const float *src0, const float *src1,
95 const float *src2, int len){
98 for (i = 0; i < len; i++)
99 dst[i] = src0[i] * src1[i] + src2[i];
102 static void vector_fmul_reverse_c(float *dst, const float *src0,
103 const float *src1, int len)
108 for (i = 0; i < len; i++)
109 dst[i] = src0[i] * src1[-i];
112 static void butterflies_float_c(float *av_restrict v1, float *av_restrict v2,
117 for (i = 0; i < len; i++) {
118 float t = v1[i] - v2[i];
124 float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len)
129 for (i = 0; i < len; i++)
135 av_cold AVFloatDSPContext *avpriv_float_dsp_alloc(int bit_exact)
137 AVFloatDSPContext *fdsp = av_mallocz(sizeof(AVFloatDSPContext));
141 fdsp->vector_fmul = vector_fmul_c;
142 fdsp->vector_dmul = vector_dmul_c;
143 fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
144 fdsp->vector_fmul_scalar = vector_fmul_scalar_c;
145 fdsp->vector_dmac_scalar = vector_dmac_scalar_c;
146 fdsp->vector_dmul_scalar = vector_dmul_scalar_c;
147 fdsp->vector_fmul_window = vector_fmul_window_c;
148 fdsp->vector_fmul_add = vector_fmul_add_c;
149 fdsp->vector_fmul_reverse = vector_fmul_reverse_c;
150 fdsp->butterflies_float = butterflies_float_c;
151 fdsp->scalarproduct_float = avpriv_scalarproduct_float_c;
154 ff_float_dsp_init_aarch64(fdsp);
156 ff_float_dsp_init_arm(fdsp);
158 ff_float_dsp_init_ppc(fdsp, bit_exact);
160 ff_float_dsp_init_x86(fdsp);
162 ff_float_dsp_init_mips(fdsp);