furnace/src/engine/platform/vic20.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

94 lines
2.7 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 _VIC20_H
#define _VIC20_H
#include "../dispatch.h"
#include "../macroInt.h"
#include "sound/vic20sound.h"
#include <queue>
class DivPlatformVIC20: public DivDispatch {
struct Channel {
int freq, baseFreq, pitch, pitch2, note, ins;
unsigned char pan;
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta;
int vol, outVol, wave, waveWriteCycle;
DivMacroInt std;
void macroInit(DivInstrument* which) {
std.init(which);
pitch2=0;
}
Channel():
freq(0),
baseFreq(0),
pitch(0),
pitch2(0),
note(0),
ins(-1),
pan(255),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
inPorta(false),
vol(15),
outVol(15),
wave(0),
waveWriteCycle(-1) {}
};
Channel chan[4];
DivDispatchOscBuffer* oscBuf[4];
bool isMuted[4];
bool hasWaveWrite;
unsigned char regPool[16];
sound_vic20_t* vic;
void updateWave(int ch);
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);
void setFlags(unsigned int flags);
void notifyInsDeletion(void* ins);
bool isStereo();
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char** getRegisterSheet();
int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
void quit();
~DivPlatformVIC20();
private:
void calcAndWriteOutVol(int ch, int env);
void writeOutVol(int ch);
};
#endif