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waveform.h
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waveform.h
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/* miniSynth - A Simple Software Synthesizer
Copyright (C) 2015 Ville Räisänen <vsr at vsr.name>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef WAVEFORM_H
#define WAVEFORM_H
#include <qmath.h>
#include <math.h>
// The Waveform class implements the necessary code for the generation of the
// basic waveforms. The waveform is computed at the constructor stage and
// assembled into a wavetable, which is evaluated with the eval(qreal t)
// function.
class Waveform {
public:
Waveform(unsigned int mode, unsigned int size=4096);
~Waveform();
qreal eval(qreal t);
unsigned int mode;
enum {MODE_SIN, MODE_SAW, MODE_SQU, MODE_SAW2};
private:
qreal waveSin (qreal t);
qreal waveSaw (qreal t);
qreal waveSqu (qreal t);
qreal waveSaw2(qreal t);
qreal *waveTable;
unsigned int tableSize;
};
#endif // WAVEFORM_H