furnace/src/engine/platform/fds.h
2022-05-26 18:07:59 -05:00

112 lines
3.2 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 _FDS_H
#define _FDS_H
#include "../dispatch.h"
#include "../macroInt.h"
#include "../waveSynth.h"
#include "sound/nes_nsfplay/nes_fds.h"
class DivPlatformFDS: public DivDispatch {
struct Channel {
int freq, baseFreq, pitch, pitch2, prevFreq, note, modFreq, ins;
unsigned char duty, sweep, modDepth, modPos;
bool active, insChanged, freqChanged, sweepChanged, keyOn, keyOff, inPorta, modOn;
signed char vol, outVol, wave;
signed char modTable[32];
DivMacroInt std;
void macroInit(DivInstrument* which) {
std.init(which);
pitch2=0;
}
Channel():
freq(0),
baseFreq(0),
pitch(0),
pitch2(0),
prevFreq(65535),
note(0),
modFreq(0),
ins(-1),
duty(0),
sweep(8),
modDepth(0),
modPos(0),
active(false),
insChanged(true),
freqChanged(false),
sweepChanged(false),
keyOn(false),
keyOff(false),
inPorta(false),
modOn(false),
vol(32),
outVol(32),
wave(-1) {
memset(modTable,0,32);
}
};
Channel chan[1];
DivDispatchOscBuffer* oscBuf;
bool isMuted[1];
DivWaveSynth ws;
unsigned char apuType;
unsigned char writeOscBuf;
bool useNP;
struct _fds* fds;
xgm::NES_FDS* fds_NP;
unsigned char regPool[128];
void updateWave();
friend void putDispatchChan(void*,int,int);
void doWrite(unsigned short addr, unsigned char data);
void acquire_puNES(short* bufL, short* bufR, size_t start, size_t len);
void acquire_NSFPlay(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
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 keyOffAffectsArp(int ch);
void setNSFPlay(bool use);
void setFlags(unsigned int flags);
void notifyInsDeletion(void* ins);
float getPostAmp();
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char** getRegisterSheet();
const char* getEffectName(unsigned char effect);
int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
void quit();
~DivPlatformFDS();
};
#endif