furnace/src/engine/platform/vera.h

88 lines
2.8 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 _VERA_H
#define _VERA_H
#include "../dispatch.h"
#include "../instrument.h"
#include "../macroInt.h"
struct VERA_PSG;
struct VERA_PCM;
class DivPlatformVERA: public DivDispatch {
protected:
struct Channel {
int freq, baseFreq, pitch, pitch2, note, ins;
unsigned char pan;
bool active, freqChanged, inPorta;
int vol, outVol;
unsigned accum;
int noiseval;
DivMacroInt std;
struct PCMChannel {
int sample;
unsigned pos;
unsigned len;
unsigned char freq;
bool depth16;
PCMChannel(): sample(-1), pos(0), len(0), freq(0), depth16(false) {}
} pcm;
// somebody please split this into multiple lines!
void macroInit(DivInstrument* which) {
std.init(which);
pitch2=0;
}
Channel(): freq(0), baseFreq(0), pitch(0), pitch2(0), note(0), ins(-1), pan(0), active(false), freqChanged(false), inPorta(false), vol(0), outVol(0), accum(0), noiseval(0) {}
};
Channel chan[17];
DivDispatchOscBuffer* oscBuf[17];
bool isMuted[17];
unsigned char regPool[67];
struct VERA_PSG* psg;
struct VERA_PCM* pcm;
int calcNoteFreq(int ch, int note);
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 tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
void notifyInsDeletion(void* ins);
float getPostAmp();
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, const DivConfig& flags);
void quit();
~DivPlatformVERA();
};
#endif