furnace/src/engine/platform/genesis.h
2023-08-23 17:25:05 -05:00

137 lines
4 KiB
C++

/**
* Furnace Tracker - multi-system chiptune tracker
* 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 _GENESIS_H
#define _GENESIS_H
#include "fmshared_OPN.h"
#include "sound/ymfm/ymfm_opn.h"
class DivYM2612Interface: public ymfm::ymfm_interface {
int setA, setB;
int countA, countB;
public:
void clock();
void ymfm_set_timer(uint32_t tnum, int32_t duration_in_clocks);
DivYM2612Interface():
ymfm::ymfm_interface(),
countA(0),
countB(0) {}
};
class DivPlatformGenesis: public DivPlatformOPN {
protected:
const unsigned short chanOffs[6]={
0x00, 0x01, 0x02, 0x100, 0x101, 0x102
};
const unsigned char konOffs[6]={
0, 1, 2, 4, 5, 6
};
struct Channel: public FMChannelStereo {
bool furnaceDac;
bool dacMode;
int dacPeriod;
int dacRate;
unsigned int dacPos;
int dacSample;
int dacDelay;
bool dacDirection;
bool setPos;
unsigned char sampleBank;
signed char dacOutput;
Channel():
FMChannelStereo(),
furnaceDac(false),
dacMode(false),
dacPeriod(0),
dacRate(0),
dacPos(0),
dacSample(-1),
dacDelay(0),
dacDirection(false),
setPos(false),
sampleBank(0),
dacOutput(0) {}
};
Channel chan[10];
DivDispatchOscBuffer* oscBuf[10];
bool isMuted[10];
ym3438_t fm;
ymfm::ym2612* fm_ymfm;
ymfm::ym2612::output_data out_ymfm;
DivYM2612Interface iface;
int softPCMTimer;
bool extMode, softPCM, noExtMacros, useYMFM, canWriteDAC;
unsigned char chipType;
short dacWrite;
unsigned char dacVolTable[128];
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
inline void processDAC(int iRate);
inline void commitState(int ch, DivInstrument* ins);
void acquire_nuked(short** buf, size_t len);
void acquire_ymfm(short** buf, size_t len);
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
public:
void acquire(short** buf, size_t len);
void fillStream(std::vector<DivDelayedWrite>& stream, int sRate, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivMacroInt* getChanMacroInt(int ch);
virtual unsigned short getPan(int chan);
DivSamplePos getSamplePos(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);
int getOutputCount();
void setYMFM(bool use);
bool keyOffAffectsArp(int ch);
bool keyOffAffectsPorta(int ch);
float getPostAmp();
void toggleRegisterDump(bool enable);
void setFlags(const DivConfig& flags);
void notifyInsChange(int ins);
virtual void notifyInsDeletion(void* ins);
void setSoftPCM(bool value);
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();
DivPlatformGenesis():
DivPlatformOPN(2, 6, 6, 6, 6, 9440540.0, 72, 32, false, 7) {}
~DivPlatformGenesis();
};
#endif