furnace/src/engine/platform/opll.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 _OPLL_H
#define _OPLL_H
#include "../dispatch.h"
#include <queue>
extern "C" {
#include "../../../extern/Nuked-OPLL/opll.h"
}
class DivPlatformOPLL: public DivDispatch {
protected:
struct Channel: public SharedChannel<int> {
DivInstrumentFM state;
unsigned char freqH, freqL;
int fixedFreq;
bool furnaceDac;
unsigned char pan;
Channel():
SharedChannel<int>(0),
freqH(0),
freqL(0),
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fixedFreq(0),
furnaceDac(false),
pan(3) {}
};
Channel chan[11];
bool isMuted[11];
DivDispatchOscBuffer* oscBuf[11];
struct QueuedWrite {
unsigned short addr;
unsigned char val;
bool addrOrVal;
QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v), addrOrVal(false) {}
};
std::queue<QueuedWrite> writes;
opll_t fm;
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int delay, lastCustomMemory;
unsigned char lastBusy;
unsigned char drumState;
unsigned char drumVol[5];
unsigned char regPool[256];
bool useYMFM;
bool drums;
bool properDrums, properDrumsSys, noTopHatFreq;
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bool vrc7;
unsigned char patchSet;
short oldWrites[256];
short pendingWrites[256];
int octave(int freq);
int toFreq(int freq);
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void commitState(int ch, DivInstrument* ins);
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
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void acquire_nuked(short** buf, size_t len);
void acquire_ymfm(short** buf, size_t len);
public:
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void acquire(short** buf, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivMacroInt* getChanMacroInt(int ch);
DivDispatchOscBuffer* getOscBuffer(int chan);
unsigned char* getRegisterPool();
int getRegisterPoolSize();
void reset();
void forceIns();
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
void setYMFM(bool use);
bool keyOffAffectsArp(int ch);
bool keyOffAffectsPorta(int ch);
float getPostAmp();
void toggleRegisterDump(bool enable);
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void setVRC7(bool vrc);
void setProperDrums(bool pd);
void setFlags(const DivConfig& flags);
void notifyInsChange(int ins);
void notifyInsDeletion(void* ins);
int getPortaFloor(int ch);
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
void quit();
~DivPlatformOPLL();
};
#endif