/** * 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. */ #include "su.h" #include "../engine.h" #include "../../ta-log.h" #include //#define rWrite(a,v) pendingWrites[a]=v; #define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} } #define chWrite(c,a,v) rWrite(((c)<<5)|(a),v); #define CHIP_DIVIDER 2 #define CHIP_FREQBASE 524288 const char** DivPlatformSoundUnit::getRegisterSheet() { return NULL; } double DivPlatformSoundUnit::NOTE_SU(int ch, int note) { if (chan[ch].switchRoles) { return NOTE_PERIODIC(note); } return NOTE_FREQUENCY(note); } void DivPlatformSoundUnit::acquire(short** buf, size_t len) { for (size_t h=0; hWrite(w.addr,w.val); writes.pop(); } su->NextSample(&buf[0][h],&buf[1][h]); for (int i=0; i<8; i++) { oscBuf[i]->data[oscBuf[i]->needle++]=su->GetSample(i); } } } void DivPlatformSoundUnit::writeControl(int ch) { chWrite(ch,0x04,(chan[ch].wave&7)|(chan[ch].pcm<<3)|(chan[ch].control<<4)); } void DivPlatformSoundUnit::writeControlUpper(int ch) { chWrite(ch,0x05,((int)chan[ch].phaseReset)|(chan[ch].filterPhaseReset<<1)|(chan[ch].pcmLoop<<2)|(chan[ch].timerSync<<3)|(chan[ch].freqSweep<<4)|(chan[ch].volSweep<<5)|(chan[ch].cutSweep<<6)); chan[ch].phaseReset=false; chan[ch].filterPhaseReset=false; } void DivPlatformSoundUnit::tick(bool sysTick) { for (int i=0; i<8; i++) { chan[i].std.next(); if (chan[i].std.vol.had) { DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU); if (ins->type==DIV_INS_AMIGA) { chan[i].outVol=((chan[i].vol&127)*MIN(64,chan[i].std.vol.val))>>6; } else { chan[i].outVol=((chan[i].vol&127)*MIN(127,chan[i].std.vol.val))>>7; } chWrite(i,0x02,chan[i].outVol); } if (NEW_ARP_STRAT) { chan[i].handleArp(); } else if (chan[i].std.arp.had) { if (!chan[i].inPorta) { chan[i].baseFreq=NOTE_SU(i,parent->calcArp(chan[i].note,chan[i].std.arp.val)); } chan[i].freqChanged=true; } if (chan[i].std.duty.had) { chan[i].duty=chan[i].std.duty.val; chWrite(i,0x08,chan[i].duty); } if (chan[i].std.wave.had) { chan[i].wave=chan[i].std.wave.val&7; writeControl(i); } if (chan[i].std.phaseReset.had) { chan[i].phaseReset=chan[i].std.phaseReset.val; writeControlUpper(i); } if (chan[i].std.panL.had) { chan[i].pan=chan[i].std.panL.val; chWrite(i,0x03,chan[i].pan); } if (chan[i].std.pitch.had) { if (chan[i].std.pitch.mode) { chan[i].pitch2+=chan[i].std.pitch.val; CLAMP_VAR(chan[i].pitch2,-32768,32767); } else { chan[i].pitch2=chan[i].std.pitch.val; } chan[i].freqChanged=true; } if (chan[i].std.ex1.had) { chan[i].cutoff=((chan[i].std.ex1.val&16383)*chan[i].baseCutoff)/16380; chWrite(i,0x06,chan[i].cutoff&0xff); chWrite(i,0x07,chan[i].cutoff>>8); } if (chan[i].std.ex2.had) { chan[i].res=chan[i].std.ex2.val; chWrite(i,0x09,chan[i].res); } if (chan[i].std.ex3.had) { chan[i].control=chan[i].std.ex3.val&15; writeControl(i); } if (chan[i].std.ex4.had) { chan[i].syncTimer=chan[i].std.ex4.val&65535; chan[i].timerSync=(chan[i].syncTimer>0); if (chan[i].switchRoles) { chWrite(i,0x00,chan[i].syncTimer&0xff); chWrite(i,0x01,chan[i].syncTimer>>8); } else { chWrite(i,0x1e,chan[i].syncTimer&0xff); chWrite(i,0x1f,chan[i].syncTimer>>8); } writeControlUpper(i); } if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) { //DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU); chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,chan[i].switchRoles,2,chan[i].pitch2,chipClock,chan[i].switchRoles?CHIP_DIVIDER:CHIP_FREQBASE); if (chan[i].pcm) { DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU); // TODO: sample map? DivSample* sample=parent->getSample(ins->amiga.getSample(chan[i].note)); if (sample!=NULL) { double off=0.25; if (sample->centerRate<1) { off=0.25; } else { off=(double)sample->centerRate/(8363.0*4.0); } chan[i].freq=(double)chan[i].freq*off; } } if (chan[i].freq<0) chan[i].freq=0; if (chan[i].freq>65535) chan[i].freq=65535; if (chan[i].switchRoles) { chWrite(i,0x1e,chan[i].freq&0xff); chWrite(i,0x1f,chan[i].freq>>8); } else { chWrite(i,0x00,chan[i].freq&0xff); chWrite(i,0x01,chan[i].freq>>8); } if (chan[i].keyOn) { if (chan[i].pcm) { DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU); int sNum=ins->amiga.getSample(chan[i].note); DivSample* sample=parent->getSample(sNum); if (sample!=NULL && sNum>=0 && sNumsong.sampleLen) { unsigned int sampleEnd=sampleOffSU[sNum]+(sample->getLoopEndPosition()); unsigned int off=sampleOffSU[sNum]+chan[i].hasOffset; chan[i].hasOffset=0; if (sampleEnd>=getSampleMemCapacity(0)) sampleEnd=getSampleMemCapacity(0)-1; chWrite(i,0x0a,off&0xff); chWrite(i,0x0b,off>>8); chWrite(i,0x0c,sampleEnd&0xff); chWrite(i,0x0d,sampleEnd>>8); if (sample->isLoopable()) { unsigned int sampleLoop=sampleOffSU[sNum]+sample->getLoopStartPosition(); if (sampleLoop>=getSampleMemCapacity(0)) sampleLoop=getSampleMemCapacity(0)-1; chWrite(i,0x0e,sampleLoop&0xff); chWrite(i,0x0f,sampleLoop>>8); chan[i].pcmLoop=true; } else { chan[i].pcmLoop=false; } writeControl(i); writeControlUpper(i); } } } if (chan[i].keyOff) { chWrite(i,0x02,0); } if (chan[i].keyOn) chan[i].keyOn=false; if (chan[i].keyOff) chan[i].keyOff=false; chan[i].freqChanged=false; } } } int DivPlatformSoundUnit::dispatch(DivCommand c) { switch (c.cmd) { case DIV_CMD_NOTE_ON: { DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_SU); chan[c.chan].switchRoles=ins->su.switchRoles; if (chan[c.chan].pcm && !(ins->type==DIV_INS_AMIGA || ins->amiga.useSample)) { chan[c.chan].pcm=(ins->type==DIV_INS_AMIGA || ins->amiga.useSample); writeControl(c.chan); writeControlUpper(c.chan); } chan[c.chan].pcm=(ins->type==DIV_INS_AMIGA || ins->amiga.useSample); if (c.value!=DIV_NOTE_NULL) { chan[c.chan].baseFreq=NOTE_SU(c.chan,c.value); chan[c.chan].freqChanged=true; chan[c.chan].note=c.value; } chan[c.chan].active=true; chan[c.chan].keyOn=true; chWrite(c.chan,0x02,chan[c.chan].vol); chan[c.chan].macroInit(ins); if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) { chan[c.chan].outVol=chan[c.chan].vol; } chan[c.chan].insChanged=false; break; } case DIV_CMD_NOTE_OFF: chan[c.chan].active=false; chan[c.chan].keyOff=true; chan[c.chan].macroInit(NULL); break; case DIV_CMD_NOTE_OFF_ENV: case DIV_CMD_ENV_RELEASE: chan[c.chan].std.release(); break; case DIV_CMD_INSTRUMENT: if (chan[c.chan].ins!=c.value || c.value2==1) { chan[c.chan].ins=c.value; chan[c.chan].insChanged=true; } break; case DIV_CMD_VOLUME: if (chan[c.chan].vol!=c.value) { chan[c.chan].vol=c.value; if (!chan[c.chan].std.vol.has) { chan[c.chan].outVol=c.value; if (chan[c.chan].active) chWrite(c.chan,0x02,chan[c.chan].outVol); } } break; case DIV_CMD_GET_VOLUME: if (chan[c.chan].std.vol.has) { return chan[c.chan].vol; } return chan[c.chan].outVol; break; case DIV_CMD_PITCH: chan[c.chan].pitch=c.value; chan[c.chan].freqChanged=true; break; case DIV_CMD_WAVE: chan[c.chan].wave=c.value&7; writeControl(c.chan); break; case DIV_CMD_STD_NOISE_MODE: chan[c.chan].duty=c.value&127; chWrite(c.chan,0x08,chan[c.chan].duty); break; case DIV_CMD_C64_RESONANCE: chan[c.chan].res=c.value; chWrite(c.chan,0x09,chan[c.chan].res); break; case DIV_CMD_C64_FILTER_MODE: chan[c.chan].control=c.value&15; break; case DIV_CMD_SU_SWEEP_PERIOD_LOW: { switch (c.value) { case 0: chan[c.chan].freqSweepP=(chan[c.chan].freqSweepP&0xff00)|c.value2; chWrite(c.chan,0x10,chan[c.chan].freqSweepP&0xff); break; case 1: chan[c.chan].volSweepP=(chan[c.chan].volSweepP&0xff00)|c.value2; chWrite(c.chan,0x14,chan[c.chan].volSweepP&0xff); break; case 2: chan[c.chan].cutSweepP=(chan[c.chan].cutSweepP&0xff00)|c.value2; chWrite(c.chan,0x18,chan[c.chan].cutSweepP&0xff); break; } break; } case DIV_CMD_SU_SWEEP_PERIOD_HIGH: { switch (c.value) { case 0: chan[c.chan].freqSweepP=(chan[c.chan].freqSweepP&0xff)|(c.value2<<8); chWrite(c.chan,0x11,chan[c.chan].freqSweepP>>8); break; case 1: chan[c.chan].volSweepP=(chan[c.chan].volSweepP&0xff)|(c.value2<<8); chWrite(c.chan,0x15,chan[c.chan].volSweepP>>8); break; case 2: chan[c.chan].cutSweepP=(chan[c.chan].cutSweepP&0xff)|(c.value2<<8); chWrite(c.chan,0x19,chan[c.chan].cutSweepP>>8); break; } break; } case DIV_CMD_SU_SWEEP_BOUND: { switch (c.value) { case 0: chan[c.chan].freqSweepB=c.value2; chWrite(c.chan,0x13,chan[c.chan].freqSweepB); break; case 1: chan[c.chan].volSweepB=c.value2; chWrite(c.chan,0x17,chan[c.chan].volSweepB); break; case 2: chan[c.chan].cutSweepB=c.value2; chWrite(c.chan,0x1b,chan[c.chan].cutSweepB); break; } break; } case DIV_CMD_SU_SWEEP_ENABLE: { switch (c.value) { case 0: chan[c.chan].freqSweepV=c.value2; chan[c.chan].freqSweep=(c.value2>0); chWrite(c.chan,0x12,chan[c.chan].freqSweepV); break; case 1: chan[c.chan].volSweepV=c.value2; chan[c.chan].volSweep=(c.value2>0); chWrite(c.chan,0x16,chan[c.chan].volSweepV); break; case 2: chan[c.chan].cutSweepV=c.value2; chan[c.chan].cutSweep=(c.value2>0); chWrite(c.chan,0x1a,chan[c.chan].cutSweepV); break; } writeControlUpper(c.chan); break; } case DIV_CMD_SU_SYNC_PERIOD_LOW: chan[c.chan].syncTimer=(chan[c.chan].syncTimer&0xff00)|c.value; chan[c.chan].timerSync=(chan[c.chan].syncTimer>0); chWrite(c.chan,0x1e,chan[c.chan].syncTimer&0xff); chWrite(c.chan,0x1f,chan[c.chan].syncTimer>>8); writeControlUpper(c.chan); break; case DIV_CMD_SU_SYNC_PERIOD_HIGH: chan[c.chan].syncTimer=(chan[c.chan].syncTimer&0xff)|(c.value<<8); chan[c.chan].timerSync=(chan[c.chan].syncTimer>0); chWrite(c.chan,0x1e,chan[c.chan].syncTimer&0xff); chWrite(c.chan,0x1f,chan[c.chan].syncTimer>>8); writeControlUpper(c.chan); break; case DIV_CMD_C64_FINE_CUTOFF: chan[c.chan].baseCutoff=c.value*4; if (!chan[c.chan].std.ex1.has) { chan[c.chan].cutoff=chan[c.chan].baseCutoff; chWrite(c.chan,0x06,chan[c.chan].cutoff&0xff); chWrite(c.chan,0x07,chan[c.chan].cutoff>>8); } break; case DIV_CMD_NOTE_PORTA: { int destFreq=NOTE_SU(c.chan,c.value2); bool return2=false; if (destFreq>chan[c.chan].baseFreq) { chan[c.chan].baseFreq+=c.value*((parent->song.linearPitch==2)?1:(1+(chan[c.chan].baseFreq>>9))); if (chan[c.chan].baseFreq>=destFreq) { chan[c.chan].baseFreq=destFreq; return2=true; } } else { chan[c.chan].baseFreq-=c.value*((parent->song.linearPitch==2)?1:(1+(chan[c.chan].baseFreq>>9))); if (chan[c.chan].baseFreq<=destFreq) { chan[c.chan].baseFreq=destFreq; return2=true; } } chan[c.chan].freqChanged=true; if (return2) { chan[c.chan].inPorta=false; return 2; } break; } case DIV_CMD_PANNING: { chan[c.chan].pan=parent->convertPanSplitToLinearLR(c.value,c.value2,254)-127; chWrite(c.chan,0x03,chan[c.chan].pan); break; } case DIV_CMD_SAMPLE_POS: chan[c.chan].hasOffset=c.value; chan[c.chan].keyOn=true; break; case DIV_CMD_LEGATO: chan[c.chan].baseFreq=NOTE_SU(c.chan,c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0))); chan[c.chan].freqChanged=true; chan[c.chan].note=c.value; break; case DIV_CMD_PRE_PORTA: if (chan[c.chan].active && c.value2) { if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_SU)); } if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_SU(c.chan,chan[c.chan].note); chan[c.chan].inPorta=c.value; break; case DIV_CMD_GET_VOLMAX: return 127; break; case DIV_CMD_MACRO_OFF: chan[c.chan].std.mask(c.value,true); break; case DIV_CMD_MACRO_ON: chan[c.chan].std.mask(c.value,false); break; case DIV_ALWAYS_SET_VOLUME: return 1; break; default: break; } return 1; } void DivPlatformSoundUnit::muteChannel(int ch, bool mute) { isMuted[ch]=mute; su->muted[ch]=mute; } void DivPlatformSoundUnit::forceIns() { for (int i=0; i<8; i++) { chan[i].insChanged=true; chan[i].freqChanged=true; // restore channel attributes chWrite(i,0x03,chan[i].pan); writeControl(i); writeControlUpper(i); } } void* DivPlatformSoundUnit::getChanState(int ch) { return &chan[ch]; } DivMacroInt* DivPlatformSoundUnit::getChanMacroInt(int ch) { return &chan[ch].std; } DivDispatchOscBuffer* DivPlatformSoundUnit::getOscBuffer(int ch) { return oscBuf[ch]; } unsigned char* DivPlatformSoundUnit::getRegisterPool() { return (unsigned char*)su->chan; } int DivPlatformSoundUnit::getRegisterPoolSize() { return 256; } void DivPlatformSoundUnit::reset() { while (!writes.empty()) writes.pop(); memset(regPool,0,128); for (int i=0; i<8; i++) { chan[i]=DivPlatformSoundUnit::Channel(); chan[i].std.setEngine(parent); } if (dumpWrites) { addWrite(0xffffffff,0); } su->Reset(); for (int i=0; i<8; i++) { chWrite(i,0x08,0x3f); } lastPan=0xff; cycles=0; curChan=-1; sampleBank=0; lfoMode=0; lfoSpeed=255; delay=500; // set initial IL status ilCtrl=initIlCtrl; ilSize=initIlSize; fil1=initFil1; echoVol=initEchoVol; rWrite(0x9c,echoVol); rWrite(0x9d,ilCtrl); rWrite(0xbc,ilSize); rWrite(0xbd,fil1); // copy sample memory memcpy(su->pcm,sampleMem,sampleMemSize?65536:8192); } int DivPlatformSoundUnit::getOutputCount() { return 2; } bool DivPlatformSoundUnit::keyOffAffectsArp(int ch) { return true; } void DivPlatformSoundUnit::notifyInsDeletion(void* ins) { for (int i=0; i<8; i++) { chan[i].std.notifyInsDeletion((DivInstrument*)ins); } } void DivPlatformSoundUnit::setFlags(const DivConfig& flags) { if (flags.getInt("clockSel",0)) { chipClock=1190000; } else { chipClock=1236000; } CHECK_CUSTOM_CLOCK; rate=chipClock/4; for (int i=0; i<8; i++) { oscBuf[i]->rate=rate; } bool echoOn=flags.getBool("echo",false); initIlCtrl=3|(echoOn?4:0); initIlSize=((flags.getInt("echoDelay",0))&63)|(echoOn?0x40:0)|(flags.getBool("swapEcho",false)?0x80:0); initFil1=flags.getInt("echoFeedback",0)|(flags.getInt("echoResolution",0)<<4); initEchoVol=flags.getInt("echoVol",0); sampleMemSize=flags.getInt("sampleMemSize",0); su->Init(sampleMemSize?65536:8192,flags.getBool("pdm",false)); renderSamples(sysIDCache); } void DivPlatformSoundUnit::poke(unsigned int addr, unsigned short val) { rWrite(addr,val); } void DivPlatformSoundUnit::poke(std::vector& wlist) { for (DivRegWrite& i: wlist) rWrite(i.addr,i.val); } const void* DivPlatformSoundUnit::getSampleMem(int index) { return (index==0)?sampleMem:NULL; } size_t DivPlatformSoundUnit::getSampleMemCapacity(int index) { return (index==0)?((sampleMemSize?65536:8192)-((initIlSize&64)?((1+(initIlSize&63))<<7):0)):0; } size_t DivPlatformSoundUnit::getSampleMemUsage(int index) { return (index==0)?sampleMemLen:0; } bool DivPlatformSoundUnit::isSampleLoaded(int index, int sample) { if (index!=0) return false; if (sample<0 || sample>255) return false; return sampleLoaded[sample]; } void DivPlatformSoundUnit::renderSamples(int sysID) { memset(sampleMem,0,sampleMemSize?65536:8192); memset(sampleOffSU,0,256*sizeof(unsigned int)); memset(sampleLoaded,0,256*sizeof(bool)); size_t memPos=0; for (int i=0; isong.sampleLen; i++) { DivSample* s=parent->song.sample[i]; if (s->data8==NULL) continue; if (!s->renderOn[0][sysID]) { sampleOffSU[i]=0; continue; } int paddedLen=s->length8; if (memPos>=getSampleMemCapacity(0)) { logW("out of PCM memory for sample %d!",i); break; } if (memPos+paddedLen>=getSampleMemCapacity(0)) { memcpy(sampleMem+memPos,s->data8,getSampleMemCapacity(0)-memPos); logW("out of PCM memory for sample %d!",i); } else { memcpy(sampleMem+memPos,s->data8,paddedLen); sampleLoaded[i]=true; } sampleOffSU[i]=memPos; memPos+=paddedLen; } sampleMemLen=memPos; sysIDCache=sysID; memcpy(su->pcm,sampleMem,sampleMemSize?65536:8192); } int DivPlatformSoundUnit::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) { parent=p; dumpWrites=false; skipRegisterWrites=false; for (int i=0; i<8; i++) { isMuted[i]=false; oscBuf[i]=new DivDispatchOscBuffer; } su=new SoundUnit(); sampleMem=new unsigned char[65536]; memset(sampleMem,0,65536); sysIDCache=0; setFlags(flags); reset(); return 8; } void DivPlatformSoundUnit::quit() { for (int i=0; i<8; i++) { delete oscBuf[i]; } delete su; delete sampleMem; } DivPlatformSoundUnit::~DivPlatformSoundUnit() { }