furnace/src/engine/platform/vb.h

95 lines
2.9 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 _PLATFORM_VB_H
#define _PLATFORM_VB_H
#include "../dispatch.h"
#include "../fixedQueue.h"
#include "../waveSynth.h"
#include "sound/vsu.h"
class DivPlatformVB: public DivDispatch {
struct Channel: public SharedChannel<signed char> {
unsigned char pan, envLow, envHigh;
bool noise, deferredWaveUpdate;
signed short wave;
DivWaveSynth ws;
Channel():
SharedChannel<signed char>(15),
pan(255),
envLow(0),
envHigh(0),
noise(false),
deferredWaveUpdate(false),
wave(-1) {}
};
Channel chan[6];
DivDispatchOscBuffer* oscBuf[6];
bool isMuted[6];
struct QueuedWrite {
unsigned short addr;
unsigned char val;
QueuedWrite(): addr(0), val(0) {}
QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v) {}
};
FixedQueue<QueuedWrite,2048> writes;
unsigned char lastPan;
int cycles, curChan, delay;
int tempL;
int tempR;
unsigned char modulation;
bool modType;
signed char modTable[32];
VSU* vb;
unsigned char regPool[0x600];
void updateWave(int ch);
void writeEnv(int ch, bool upperByteToo=false);
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
public:
void acquire(short** buf, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivMacroInt* getChanMacroInt(int ch);
DivDispatchOscBuffer* getOscBuffer(int chan);
unsigned char* getRegisterPool();
int getRegisterPoolSize();
int getRegisterPoolDepth();
void reset();
void forceIns();
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
int getOutputCount();
bool keyOffAffectsArp(int ch);
float getPostAmp();
void setFlags(const DivConfig& flags);
void notifyWaveChange(int wave);
void notifyInsDeletion(void* ins);
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();
~DivPlatformVB();
};
#endif