furnace/src/engine/platform/pcmdac.h

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/**
* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _PCM_DAC_H
#define _PCM_DAC_H
#include "../dispatch.h"
#include "../waveSynth.h"
class DivPlatformPCMDAC: public DivDispatch {
struct Channel: public SharedChannel<int> {
bool audDir;
unsigned int audLoc;
unsigned short audLen;
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short audDat[8];
int audPos;
int audSub;
int sample, wave;
int panL, panR;
bool useWave, setPos;
int envVol;
DivWaveSynth ws;
Channel():
SharedChannel<int>(255),
audDir(false),
audLoc(0),
audLen(0),
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audDat{0,0,0,0,0,0,0,0},
audPos(0),
audSub(0),
sample(-1),
wave(-1),
panL(255),
panR(255),
useWave(false),
setPos(false),
envVol(64) {}
};
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Channel chan[1];
DivDispatchOscBuffer* oscBuf;
bool isMuted;
int outDepth;
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// valid values:
// - 0: none
// - 1: linear
// - 2: cubic spline
// - 3: sinc
int interp;
bool outStereo;
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
public:
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void acquire(short** buf, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivDispatchOscBuffer* getOscBuffer(int chan);
void reset();
void forceIns();
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
int getOutputCount();
DivMacroInt* getChanMacroInt(int ch);
DivSamplePos getSamplePos(int ch);
void setFlags(const DivConfig& flags);
void notifyInsChange(int ins);
void notifyWaveChange(int wave);
void notifyInsDeletion(void* ins);
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
void quit();
};
#endif