furnace/src/engine/platform/opll.h

131 lines
3.8 KiB
C++

/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 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 "../macroInt.h"
#include <queue>
extern "C" {
#include "../../../extern/Nuked-OPLL/opll.h"
}
class DivPlatformOPLL: public DivDispatch {
protected:
struct Channel {
DivInstrumentFM state;
DivMacroInt std;
unsigned char freqH, freqL;
int freq, baseFreq, pitch, pitch2, note, ins, fixedFreq;
bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, furnaceDac, inPorta;
int vol, outVol;
unsigned char pan;
void macroInit(DivInstrument* which) {
std.init(which);
pitch2=0;
}
Channel():
freqH(0),
freqL(0),
freq(0),
baseFreq(0),
pitch(0),
pitch2(0),
note(0),
ins(-1),
fixedFreq(0),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
portaPause(false),
furnaceDac(false),
inPorta(false),
vol(0),
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;
int delay, lastCustomMemory;
unsigned char lastBusy;
unsigned char drumState;
unsigned char drumVol[5];
unsigned char regPool[256];
bool useYMFM;
bool drums;
bool properDrums, properDrumsSys;
bool vrc7;
unsigned char patchSet;
short oldWrites[256];
short pendingWrites[256];
int octave(int freq);
int toFreq(int freq);
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
void acquire_nuked(short* bufL, short* bufR, size_t start, size_t len);
void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, 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);
void toggleRegisterDump(bool enable);
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