furnace/src/engine/platform/ym2203.h
cam900 cf1d4e55cf Fix ADPCM-A playback
Add per-chip debug function
Add YM2203, YM2608, YM2610/B debug window
Extend YM2612 debug window
Remove unnecessary values in YM2151, Sega PCM platform
2022-09-23 23:24:02 +09:00

128 lines
3.6 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 _YM2203_H
#define _YM2203_H
#include "fmshared_OPN.h"
#include "../macroInt.h"
#include "sound/ymfm/ymfm_opn.h"
#include "ay.h"
class DivYM2203Interface: public ymfm::ymfm_interface {
};
class DivPlatformYM2203: public DivPlatformOPN {
protected:
const unsigned short chanOffs[3]={
0x00, 0x01, 0x02
};
const unsigned char konOffs[3]={
0, 1, 2
};
struct Channel {
DivInstrumentFM state;
unsigned char freqH, freqL;
int freq, baseFreq, pitch, pitch2, portaPauseFreq, note, ins;
unsigned char psgMode, autoEnvNum, autoEnvDen, opMask;
signed char konCycles;
bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, inPorta, furnacePCM, hardReset, opMaskChanged;
int vol, outVol;
int sample;
DivMacroInt std;
void macroInit(DivInstrument* which) {
std.init(which);
pitch2=0;
}
Channel():
freqH(0),
freqL(0),
freq(0),
baseFreq(0),
pitch(0),
pitch2(0),
portaPauseFreq(0),
note(0),
ins(-1),
psgMode(1),
autoEnvNum(0),
autoEnvDen(0),
opMask(15),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
portaPause(false),
inPorta(false),
furnacePCM(false),
hardReset(false),
opMaskChanged(false),
vol(0),
outVol(15),
sample(-1) {}
};
Channel chan[6];
DivDispatchOscBuffer* oscBuf[6];
bool isMuted[6];
ymfm::ym2203* fm;
ymfm::ym2203::output_data fmout;
DivYM2203Interface iface;
DivPlatformAY8910* ay;
unsigned char sampleBank;
bool extMode;
unsigned char prescale;
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
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);
bool isStereo();
bool keyOffAffectsArp(int ch);
void notifyInsChange(int ins);
void notifyInsDeletion(void* ins);
void setSkipRegisterWrites(bool val);
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char** getRegisterSheet();
void setFlags(unsigned int flags);
int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
void quit();
DivPlatformYM2203():
DivPlatformOPN(4720270.0, 36, 16),
prescale(0x2d) {}
~DivPlatformYM2203();
};
#endif