source: roaraudio/libroardsp/filter_add.c @ 5961:06e7fd9e4c25

Last change on this file since 5961:06e7fd9e4c25 was 5961:06e7fd9e4c25, checked in by phi, 10 years ago

Updates of copyright and license headers

File size: 1.7 KB
Line 
1//filter_add.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2014
5 *
6 *  This file is part of libroardsp a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  libroardsp is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 */
25
26#include "libroardsp.h"
27
28#define _calcX(bits) \
29int roardsp_add_calc##bits  (struct roardsp_filter * filter, void * data, size_t samples) { \
30 struct roardsp_amp * self = (struct roardsp_amp *) filter->inst; \
31 int##bits##_t * samp = (int##bits##_t *) data; \
32 size_t i; \
33\
34 for (i = 0; i < samples; i++) { \
35  samp[i] += self->mul / self->div; \
36 }; \
37\
38 return 0; \
39}
40
41_calcX(8)
42_calcX(16)
43_calcX(32)
44
45int roardsp_add_reset (struct roardsp_filter * filter, int what) {
46 struct roardsp_amp * self;
47
48 if ( filter == NULL )
49  return -1;
50
51 if ( filter->inst == NULL )
52  return -1;
53
54 self = filter->inst;
55
56 switch (what) {
57  case ROARDSP_RESET_NONE:
58  case ROARDSP_RESET_STATE:
59    return  0;
60   break;
61  case ROARDSP_RESET_FULL:
62    self->mul = 0;
63    self->div = 1;
64    return  0;
65   break;
66  default:
67    return -1;
68 }
69
70 return -1;
71}
72
73//ll
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