furnace/src/engine/platform/genesis.h

90 lines
2.1 KiB
C++

#ifndef _GENESIS_H
#define _GENESIS_H
#include "../dispatch.h"
#include <queue>
#include "../../../extern/Nuked-OPN2/ym3438.h"
#include "sms.h"
class DivPlatformGenesis: public DivDispatch {
protected:
struct Channel {
DivInstrumentFM state;
DivMacroInt std;
unsigned char freqH, freqL;
int freq, baseFreq, pitch, note;
unsigned char ins;
bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, furnaceDac, inPorta;
int vol;
unsigned char pan;
Channel():
freqH(0),
freqL(0),
freq(0),
baseFreq(0),
pitch(0),
note(0),
ins(-1),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
portaPause(false),
furnaceDac(false),
inPorta(false),
vol(0),
pan(3) {}
};
Channel chan[10];
bool isMuted[10];
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;
ym3438_t fm;
DivPlatformSMS psg;
int psgClocks;
int psgOut;
int delay;
unsigned char lastBusy;
bool dacMode;
int dacPeriod;
int dacRate;
unsigned int dacPos;
int dacSample;
unsigned char sampleBank;
unsigned char lfoValue;
bool extMode;
short oldWrites[512];
short pendingWrites[512];
int octave(int freq);
int toFreq(int freq);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);
void reset();
void forceIns();
void tick();
void muteChannel(int ch, bool mute);
bool isStereo();
bool keyOffAffectsArp(int ch);
bool keyOffAffectsPorta(int ch);
void toggleRegisterDump(bool enable);
void setPAL(bool pal);
void notifyInsChange(int ins);
void notifyInsDeletion(void* ins);
int init(DivEngine* parent, int channels, int sugRate, bool pal);
void quit();
~DivPlatformGenesis();
};
#endif