146 lines
4.5 KiB
C++
146 lines
4.5 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 _OPL_H
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#define _OPL_H
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#include "../dispatch.h"
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#include "../fixedQueue.h"
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#include "../../../extern/opl/opl3.h"
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#include "sound/ymfm/ymfm_adpcm.h"
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class DivOPLAInterface: public ymfm::ymfm_interface {
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public:
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unsigned char* adpcmBMem;
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int sampleBank;
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uint8_t ymfm_external_read(ymfm::access_class type, uint32_t address);
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void ymfm_external_write(ymfm::access_class type, uint32_t address, uint8_t data);
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DivOPLAInterface(): adpcmBMem(NULL), sampleBank(0) {}
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};
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class DivPlatformOPL: public DivDispatch {
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protected:
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struct Channel: public SharedChannel<int> {
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DivInstrumentFM state;
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unsigned char freqH, freqL;
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int sample, fixedFreq;
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bool furnacePCM, fourOp, hardReset;
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unsigned char pan;
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int macroVolMul;
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Channel():
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SharedChannel<int>(0),
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freqH(0),
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freqL(0),
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sample(-1),
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fixedFreq(0),
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furnacePCM(false),
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fourOp(false),
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hardReset(false),
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pan(3),
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macroVolMul(64) {
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state.ops=2;
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}
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};
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Channel chan[20];
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DivDispatchOscBuffer* oscBuf[20];
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bool isMuted[20];
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struct QueuedWrite {
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unsigned short addr;
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unsigned char val;
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bool addrOrVal;
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QueuedWrite(): addr(0), val(0), addrOrVal(false) {}
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QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v), addrOrVal(false) {}
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};
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FixedQueue<QueuedWrite,2048> writes;
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opl3_chip fm;
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unsigned char* adpcmBMem;
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size_t adpcmBMemLen;
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DivOPLAInterface iface;
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unsigned int sampleOffB[256];
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bool sampleLoaded[256];
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ymfm::adpcm_b_engine* adpcmB;
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const unsigned char** slotsNonDrums;
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const unsigned char** slotsDrums;
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const unsigned char** slots;
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const unsigned short* chanMap;
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const unsigned char* outChanMap;
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int chipFreqBase, chipRateBase;
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int delay, chipType, oplType, chans, melodicChans, totalChans, adpcmChan, sampleBank;
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unsigned char lastBusy;
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unsigned char drumState;
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unsigned char drumVol[5];
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unsigned char regPool[512];
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bool properDrums, properDrumsSys, dam, dvb;
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unsigned char lfoValue;
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bool useYMFM, update4OpMask, pretendYMU, downsample, compatPan;
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short oldWrites[512];
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short pendingWrites[512];
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int octave(int freq);
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int toFreq(int freq);
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double NOTE_ADPCMB(int note);
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void commitState(int ch, DivInstrument* ins);
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friend void putDispatchChip(void*,int);
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friend void putDispatchChan(void*,int,int);
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void acquire_nuked(short** buf, size_t len);
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//void acquire_ymfm(short** buf, size_t len);
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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 getOutputCount();
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void setYMFM(bool use);
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void setOPLType(int type, bool drums);
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bool keyOffAffectsArp(int ch);
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bool keyOffAffectsPorta(int ch);
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void toggleRegisterDump(bool enable);
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void setFlags(const DivConfig& flags);
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void notifyInsChange(int ins);
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void notifyInsDeletion(void* ins);
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int getPortaFloor(int ch);
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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 void* getSampleMem(int index);
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size_t getSampleMemCapacity(int index);
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size_t getSampleMemUsage(int index);
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bool isSampleLoaded(int index, int sample);
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void renderSamples(int chipID);
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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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~DivPlatformOPL();
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};
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#endif
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