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Prepare for split sample chip instrument

Browse source 
(MSM6258, MSM6295, QSound, Sega PCM, ADPCM-A, ADPCM-B, YMZ280B, RF5C68)
Instrument color and icons are placeholder.

different volume range, hard panned/soft panned and/or independent volume per output, chip-dependent features (global volume, echo, etc)
Allow use sample in instrument tab for chip with sample support
Prepare to support X1-010 Seta 2 style bankswitch behavior
Prepare to support AY89x0 PCM DAC
Support volume for PCE sample (DAC)
Fix Lynx, Y8950 sample pitch matches to sample preview
Support PCM DAC with backward and pingpong loop mode
Reduce some codes
Add Sega PCM, AY89x0, QSound, PCM DAC, Lynx per-channel debug support
This commit is contained in:
cam900 2022-08-27 16:27:36 +09:00
parent 86baa8c014
commit 4cc79fb49d
53 changed files with 2928 additions and 1301 deletions
Download patch file Download diff file Expand all files Collapse all files

220
src/engine/platform/ay8930.cpp
View file

@ -133,6 +133,46 @@ void DivPlatformAY8930::acquire(short* bufL, short* bufR, size_t start, size_t l
ayBuf[i]=new short[ayBufLen];
}
}
// PCM part
for (int i=0; i<3; i++) {
if (chan[i].psgMode.dac && chan[i].dac.sample!=-1) {
chan[i].dac.period+=chan[i].dac.rate;
bool end=false;
bool changed=false;
int prev_out = chan[i].dac.out;
while (chan[i].dac.period>rate && !end) {
DivSample* s=parent->getSample(chan[i].dac.sample);
if (s->getEndPosition()<=0) {
chan[i].dac.sample=-1;
rWrite(0x08+i,0);
end=true;
break;
}
unsigned char dacData=(((unsigned char)s->data8[chan[i].dac.pos]^0x80)>>3);
chan[i].dac.out=MAX(0,MIN(31,(dacData*chan[i].outVol)/31));
if (prev_out!=chan[i].dac.out) {
prev_out=chan[i].dac.out;
changed=true;
}
chan[i].dac.pos++;
if (s->isLoopable() && chan[i].dac.pos>=s->getLoopEndPosition()) {
chan[i].dac.pos=s->getLoopStartPosition();
} else if (chan[i].dac.pos>=s->getEndPosition()) {
chan[i].dac.sample=-1;
rWrite(0x08+i,0);
end=true;
break;
}
chan[i].dac.period-=rate;
}
if (changed && !end) {
if (!isMuted[i]) {
rWrite(0x08+i,chan[i].dac.out);
}
}
}
}
while (!writes.empty()) {
QueuedWrite w=writes.front();
ay->address_w(w.addr);
@ -167,22 +207,22 @@ void DivPlatformAY8930::acquire(short* bufL, short* bufR, size_t start, size_t l
void DivPlatformAY8930::updateOutSel(bool immediate) {
if (immediate) {
immWrite(0x07,
~((chan[0].psgMode&1)|
((chan[1].psgMode&1)<<1)|
((chan[2].psgMode&1)<<2)|
((chan[0].psgMode&2)<<2)|
((chan[1].psgMode&2)<<3)|
((chan[2].psgMode&2)<<4)|
~((chan[0].psgMode.getTone())|
((chan[1].psgMode.getTone())<<1)|
((chan[2].psgMode.getTone())<<2)|
((chan[0].psgMode.getNoise())<<2)|
((chan[1].psgMode.getNoise())<<3)|
((chan[2].psgMode.getNoise())<<4)|
((!ioPortA)<<6)|
((!ioPortB)<<7)));
} else {
rWrite(0x07,
~((chan[0].psgMode&1)|
((chan[1].psgMode&1)<<1)|
((chan[2].psgMode&1)<<2)|
((chan[0].psgMode&2)<<2)|
((chan[1].psgMode&2)<<3)|
((chan[2].psgMode&2)<<4)|
~((chan[0].psgMode.getTone())|
((chan[1].psgMode.getTone())<<1)|
((chan[2].psgMode.getTone())<<2)|
((chan[0].psgMode.getNoise())<<2)|
((chan[1].psgMode.getNoise())<<3)|
((chan[2].psgMode.getNoise())<<4)|
((!ioPortA)<<6)|
((!ioPortB)<<7)));
}
@ -207,10 +247,12 @@ void DivPlatformAY8930::tick(bool sysTick) {
if (chan[i].std.vol.had) {
chan[i].outVol=MIN(31,chan[i].std.vol.val)-(31-(chan[i].vol&31));
if (chan[i].outVol<0) chan[i].outVol=0;
if (isMuted[i]) {
rWrite(0x08+i,0);
} else {
rWrite(0x08+i,(chan[i].outVol&31)|((chan[i].psgMode&4)<<3));
if (!chan[i].psgMode.dac) {
if (isMuted[i]) {
rWrite(0x08+i,0);
} else {
rWrite(0x08+i,(chan[i].outVol&31)|((chan[i].psgMode.getEnvelope())<<3));
}
}
}
if (chan[i].std.arp.had) {
@ -232,11 +274,13 @@ void DivPlatformAY8930::tick(bool sysTick) {
rWrite(0x06,chan[i].std.duty.val);
}
if (chan[i].std.wave.had) {
if (!chan[i].psgMode.dac) {
chan[i].psgMode=(chan[i].std.wave.val+1)&7;
if (isMuted[i]) {
rWrite(0x08+i,0);
} else {
rWrite(0x08+i,(chan[i].outVol&31)|((chan[i].psgMode&4)<<3));
rWrite(0x08+i,(chan[i].outVol&31)|((chan[i].psgMode.getEnvelope())<<3));
}
}
}
if (chan[i].std.pitch.had) {
@ -250,6 +294,20 @@ void DivPlatformAY8930::tick(bool sysTick) {
}
if (chan[i].std.phaseReset.had) {
if (chan[i].std.phaseReset.val==1) {
if (chan[i].psgMode.dac) {
if (dumpWrites) addWrite(0xffff0002+(i<<8),0);
DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_AY8930);
chan[i].dac.sample=ins->amiga.getSample(chan[i].note);
if (chan[i].dac.sample<0 || chan[i].dac.sample>=parent->song.sampleLen) {
if (dumpWrites) {
rWrite(0x08+i,0);
addWrite(0xffff0000+(i<<8),chan[i].dac.sample);
}
chan[i].dac.pos=0;
chan[i].dac.period=0;
chan[i].keyOn=true;
}
}
oldWrites[0x08+i]=-1;
oldWrites[regMode[i]]=-1;
}
@ -281,6 +339,19 @@ void DivPlatformAY8930::tick(bool sysTick) {
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
if (chan[i].dac.furnaceDAC) {
double off=1.0;
if (chan[i].dac.sample>=0 && chan[i].dac.sample<parent->song.sampleLen) {
DivSample* s=parent->getSample(chan[i].dac.sample);
if (s->centerRate<1) {
off=1.0;
} else {
off=8363.0/(double)s->centerRate;
}
}
chan[i].dac.rate=((double)chipClock*16384.0)/(double)(MAX(1,off*chan[i].freq));
if (dumpWrites) addWrite(0xffff0001+(i<<8),chan[i].dac.rate);
}
if (chan[i].freq>65535) chan[i].freq=65535;
if (chan[i].keyOn) {
if (chan[i].insChanged) {
@ -338,6 +409,62 @@ int DivPlatformAY8930::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_AY8930);
if (ins->type==DIV_INS_AMIGA || ins->amiga.useSample) {
chan[c.chan].psgMode.dac=true;
} else if (chan[c.chan].dac.furnaceDAC) {
chan[c.chan].psgMode.dac=false;
}
if (chan[c.chan].psgMode.dac) {
if (skipRegisterWrites) break;
if (ins->type==DIV_INS_AMIGA || ins->amiga.useSample) {
chan[c.chan].dac.sample=ins->amiga.getSample(c.value);
if (chan[c.chan].dac.sample<0 || chan[c.chan].dac.sample>=parent->song.sampleLen) {
chan[c.chan].dac.sample=-1;
if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
break;
} else {
if (dumpWrites) {
rWrite(0x08+c.chan,0);
addWrite(0xffff0000+(c.chan<<8),chan[c.chan].dac.sample);
}
}
chan[c.chan].dac.pos=0;
chan[c.chan].dac.period=0;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
chan[c.chan].active=true;
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].keyOn=true;
chan[c.chan].dac.furnaceDAC=true;
} else {
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].note=c.value;
}
chan[c.chan].dac.sample=12*sampleBank+chan[c.chan].note%12;
if (chan[c.chan].dac.sample>=parent->song.sampleLen) {
chan[c.chan].dac.sample=-1;
if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
break;
} else {
if (dumpWrites) addWrite(0xffff0000+(c.chan<<8),chan[c.chan].dac.sample);
}
chan[c.chan].dac.pos=0;
chan[c.chan].dac.period=0;
chan[c.chan].dac.rate=parent->getSample(chan[c.chan].dac.sample)->rate;
if (dumpWrites) {
rWrite(0x08+c.chan,0);
addWrite(0xffff0001+(c.chan<<8),chan[c.chan].dac.rate);
}
chan[c.chan].dac.furnaceDAC=false;
}
break;
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
chan[c.chan].freqChanged=true;
@ -349,14 +476,19 @@ int DivPlatformAY8930::dispatch(DivCommand c) {
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
}
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else {
rWrite(0x08+c.chan,(chan[c.chan].vol&31)|((chan[c.chan].psgMode&4)<<3));
if (!chan[c.chan].psgMode.dac) {
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else {
rWrite(0x08+c.chan,(chan[c.chan].vol&31)|((chan[c.chan].psgMode.getEnvelope())<<3));
}
}
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].dac.sample=-1;
if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
chan[c.chan].psgMode.dac=false;
chan[c.chan].keyOff=true;
chan[c.chan].active=false;
chan[c.chan].macroInit(NULL);
@ -370,13 +502,15 @@ int DivPlatformAY8930::dispatch(DivCommand c) {
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=c.value;
}
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else {
if (chan[c.chan].active) rWrite(0x08+c.chan,(chan[c.chan].vol&31)|((chan[c.chan].psgMode&4)<<3));
if (!chan[c.chan].psgMode.dac) {
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else {
if (chan[c.chan].active) rWrite(0x08+c.chan,(chan[c.chan].vol&31)|((chan[c.chan].psgMode.getEnvelope())<<3));
}
break;
}
break;
break;
}
case DIV_CMD_GET_VOLUME: {
return chan[c.chan].vol;
@ -423,11 +557,13 @@ int DivPlatformAY8930::dispatch(DivCommand c) {
}
case DIV_CMD_STD_NOISE_MODE:
if (c.value<0x10) {
chan[c.chan].psgMode=(c.value+1)&7;
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else if (chan[c.chan].active) {
rWrite(0x08+c.chan,(chan[c.chan].outVol&31)|((chan[c.chan].psgMode&4)<<3));
if (!chan[c.chan].psgMode.dac) {
chan[c.chan].psgMode=(c.value+1)&7;
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else if (chan[c.chan].active) {
rWrite(0x08+c.chan,(chan[c.chan].outVol&31)|((chan[c.chan].psgMode.getEnvelope())<<3));
}
}
} else {
chan[c.chan].duty=c.value&15;
@ -441,14 +577,14 @@ int DivPlatformAY8930::dispatch(DivCommand c) {
chan[c.chan].envelope.mode=c.value>>4;
rWrite(regMode[c.chan],chan[c.chan].envelope.mode);
if (c.value&15) {
chan[c.chan].psgMode|=4;
chan[c.chan].psgMode.envelope|=1;
} else {
chan[c.chan].psgMode&=~4;
chan[c.chan].psgMode.envelope&=~1;
}
if (isMuted[c.chan]) {
rWrite(0x08+c.chan,0);
} else {
rWrite(0x08+c.chan,(chan[c.chan].vol&31)|((chan[c.chan].psgMode&4)<<3));
rWrite(0x08+c.chan,(chan[c.chan].vol&31)|((chan[c.chan].psgMode.getEnvelope())<<3));
}
break;
case DIV_CMD_AY_ENVELOPE_LOW:
@ -496,6 +632,15 @@ int DivPlatformAY8930::dispatch(DivCommand c) {
updateOutSel(true);
immWrite(14+(c.value?1:0),(c.value?portBVal:portAVal));
break;
case DIV_CMD_SAMPLE_MODE:
chan[c.chan].psgMode.dac=(c.value>0)?1:0;
break;
case DIV_CMD_SAMPLE_BANK:
sampleBank=c.value;
if (sampleBank>(parent->song.sample.size()/12)) {
sampleBank=parent->song.sample.size()/12;
}
break;
case DIV_ALWAYS_SET_VOLUME:
return 0;
break;
@ -523,7 +668,11 @@ void DivPlatformAY8930::muteChannel(int ch, bool mute) {
if (isMuted[ch]) {
rWrite(0x08+ch,0);
} else if (chan[ch].active) {
rWrite(0x08+ch,(chan[ch].outVol&31)|((chan[ch].psgMode&4)<<3));
if (chan[ch].psgMode.dac) {
rWrite(0x08+ch,chan[ch].dac.out&31);
} else {
rWrite(0x08+ch,(chan[ch].outVol&31)|((chan[ch].psgMode.getEnvelope())<<3));
}
}
}
@ -578,6 +727,7 @@ void DivPlatformAY8930::reset() {
pendingWrites[i]=-1;
}
sampleBank=0;
ayNoiseAnd=2;
ayNoiseOr=0;
delay=0;