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
/*
* Copyright 2011,2012 ZenGarden.
* info@rjdj.me
* http://rjdj.me/
*
* This file is part of ZenGarden.
*
* ZenGarden 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
* (at your option) any later version.
*
* ZenGarden 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 ZenGarden. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef _DSP_FILTER_H_
#define _DSP_FILTER_H_
#include "DspObject.h"
/** The superclass of lop~, hip~, bp~, and biquad~ */
class DspFilter : public DspObject {
public:
DspFilter(int numMessageInlets, PdGraph *graph);
~DspFilter();
void onInletConnectionUpdate(unsigned int inlet_index);
protected:
static void processFilter(DspObject *dspObject, int fromIndex, int toIndex);
float x1, x2, y1, y2;
float b[5]; // filter coefficients
};
#endif // _DSP_FILTER_H_