110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _GB_H
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#define _GB_H
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#include "../dispatch.h"
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#include "../waveSynth.h"
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#include "sound/gb/gb.h"
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#include "../fixedQueue.h"
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class DivPlatformGB: public DivDispatch {
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struct Channel: public SharedChannel<signed char> {
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unsigned char duty, sweep;
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bool sweepChanged, released, softEnv, killIt;
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bool soManyHacksToMakeItDefleCompatible;
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signed short wave;
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signed char lastKill;
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unsigned char envVol, envDir, envLen, soundLen;
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unsigned short hwSeqPos;
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short hwSeqDelay;
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Channel():
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SharedChannel<signed char>(15),
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duty(0),
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sweep(0),
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sweepChanged(false),
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released(false),
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softEnv(false),
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killIt(false),
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soManyHacksToMakeItDefleCompatible(false),
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wave(-1),
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lastKill(0),
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envVol(0),
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envDir(0),
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envLen(0),
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soundLen(0),
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hwSeqPos(0),
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hwSeqDelay(0) {}
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};
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Channel chan[4];
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DivDispatchOscBuffer* oscBuf[4];
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bool isMuted[4];
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bool antiClickEnabled;
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bool invertWave;
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bool enoughAlready;
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unsigned char lastPan;
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DivWaveSynth ws;
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struct QueuedWrite {
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unsigned char addr;
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unsigned char val;
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QueuedWrite(): addr(0), val(0) {}
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QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
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};
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FixedQueue<QueuedWrite,256> writes;
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int antiClickPeriodCount, antiClickWavePos;
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GB_gameboy_t* gb;
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GB_model_t model;
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unsigned char regPool[128];
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unsigned char procMute();
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void updateWave();
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friend void putDispatchChip(void*,int);
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friend void putDispatchChan(void*,int,int);
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public:
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void acquire(short** buf, size_t len);
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int dispatch(DivCommand c);
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void* getChanState(int chan);
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DivMacroInt* getChanMacroInt(int ch);
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DivDispatchOscBuffer* getOscBuffer(int chan);
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unsigned char* getRegisterPool();
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int getRegisterPoolSize();
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void reset();
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void forceIns();
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void tick(bool sysTick=true);
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void muteChannel(int ch, bool mute);
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int getPortaFloor(int ch);
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int getOutputCount();
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bool getDCOffRequired();
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void notifyInsChange(int ins);
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void notifyWaveChange(int wave);
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void notifyInsDeletion(void* ins);
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void poke(unsigned int addr, unsigned short val);
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void poke(std::vector<DivRegWrite>& wlist);
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const char** getRegisterSheet();
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void setFlags(const DivConfig& flags);
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int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
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void quit();
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~DivPlatformGB();
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};
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#endif
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