1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib 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 3 of the License, or
* any later version.
*
* lsp-dsp-lib 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 lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_COMMON_FASTCONV_H_
#define LSP_PLUG_IN_DSP_COMMON_FASTCONV_H_
#include <lsp-plug.in/dsp/common/types.h>
/** Parse input real data to fast convolution data
*
* @param dst destination buffer of 2^(rank+1) floats
* @param src source real data of 2^(rank-1) floats
* @param rank the convolution rank
*/
LSP_DSP_LIB_SYMBOL(void, fastconv_parse, float *dst, const float *src, size_t rank);
/** Parse input real data to fast convolution data,
* convolve with another convolution data,
* restore data to real data and add to output buffer
*
* @param dst target real data of 2^rank floats to store convolved data
* @param tmp temporary buffer of 2^(rank+1) floats to store intermediate data
* @param c fast convolution data of 2^(rank+1) floats to apply to the buffer
* @param src source real data of 2^(rank-1) floats
* @param rank the convolution rank
*/
LSP_DSP_LIB_SYMBOL(void, fastconv_parse_apply, float *dst, float *tmp, const float *c, const float *src, size_t rank);
/** Restore convolution to real data,
* modifies the source fast convolution data
*
* @param dst destination real data of 2^rank floats
* @param src source fast convolution data of 2^(rank+1) floats
* @param rank the convolution rank
*/
LSP_DSP_LIB_SYMBOL(void, fastconv_restore, float *dst, float *src, size_t rank);
/** Convolve two convolutions and restore data to real data
* and add to output buffer
*
* @param dst target real data of 2^rank floats to apply convolved data
* @param tmp temporary buffer of 2^(rank+1) floats to store intermediate data
* @param c1 fast convolution data of 2^(rank+1) floats
* @param c2 fast convolution data of 2^(rank+1) floats
* @param rank the convolution rank
*/
LSP_DSP_LIB_SYMBOL(void, fastconv_apply, float *dst, float *tmp, const float *c1, const float *c2, size_t rank);
#endif /* LSP_PLUG_IN_DSP_COMMON_FASTCONV_H_ */
|
