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92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _WAVESYNTH_H
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#define _WAVESYNTH_H
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#include "instrument.h"
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#include "wavetable.h"
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class DivEngine;
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class DivWaveSynth {
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DivEngine* e;
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DivInstrumentWaveSynth state;
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int pos, stage, divCounter, width, height, subDivCounter;
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bool first, activeChangedB, stageDir;
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unsigned char wave1[256];
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unsigned char wave2[256];
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public:
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/**
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* the output.
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*/
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int output[256];
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/**
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* check whether the "active" status has changed.
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* @return truth.
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*/
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bool activeChanged();
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/**
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* tick this DivWaveSynth.
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* @return whether the wave has changed.
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*/
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bool tick(bool skipSubDiv=false);
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/**
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* set the wave width.
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* @param value the width.
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*/
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void setWidth(int val);
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/**
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* change the first wave.
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* @param num wavetable number.
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* @param force whether to force overwriting the current wave.
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*/
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void changeWave1(int num, bool force=false);
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/**
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* change the second wave.
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* @param num wavetable number.
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*/
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void changeWave2(int num);
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/**
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* initialize this DivWaveSynth.
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* @param which the instrument.
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* @param width the system's wave width.
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* @param height the system's wave height.
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* @param insChanged whether the instrument has changed.
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*/
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void init(DivInstrument* which, int width, int height, bool insChanged=false);
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void setEngine(DivEngine* engine, int waveFloor=0);
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DivWaveSynth():
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e(NULL),
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pos(0),
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stage(0),
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divCounter(0),
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width(32),
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height(31),
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subDivCounter(0),
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first(false),
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activeChangedB(false),
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stageDir(false) {
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memset(wave1,0,256);
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memset(wave2,0,256);
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memset(output,0,sizeof(int)*256);
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}
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};
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#endif
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