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total extinction of legacy sample mode, part 3

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remove all the code which handles legacy sample mode
next up is a conversion strategy
This commit is contained in:
tildearrow 2025-11-08 20:05:52 -05:00
parent aa8054754c
commit 183526cdbd
21 changed files with 706 additions and 870 deletions
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75
src/engine/platform/mmc5.cpp
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@ -171,15 +171,13 @@ void DivPlatformMMC5::tick(bool sysTick) {
// PCM
if (chan[2].freqChanged) {
chan[2].freq=parent->calcFreq(chan[2].baseFreq,chan[2].pitch,chan[2].fixedArp?chan[2].baseNoteOverride:chan[2].arpOff,chan[2].fixedArp,false,0,chan[2].pitch2,1,1);
if (chan[2].furnaceDac) {
double off=1.0;
if (dacSample>=0 && dacSample<parent->song.sampleLen) {
DivSample* s=parent->getSample(dacSample);
off=(double)s->centerRate/parent->getCenterRate();
}
dacRate=MIN(chan[2].freq*off,32000);
if (dumpWrites) addWrite(0xffff0001,dacRate);
double off=1.0;
if (dacSample>=0 && dacSample<parent->song.sampleLen) {
DivSample* s=parent->getSample(dacSample);
off=(double)s->centerRate/parent->getCenterRate();
}
dacRate=MIN(chan[2].freq*off,32000);
if (dumpWrites) addWrite(0xffff0001,dacRate);
chan[2].freqChanged=false;
}
}
@ -189,40 +187,35 @@ int DivPlatformMMC5::dispatch(DivCommand c) {
case DIV_CMD_NOTE_ON:
if (c.chan==2) { // PCM
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_STD);
if (ins->type==DIV_INS_AMIGA) {
if (c.value!=DIV_NOTE_NULL) {
dacSample=ins->amiga.getSample(c.value);
chan[c.chan].sampleNote=c.value;
c.value=ins->amiga.getFreq(c.value);
chan[c.chan].sampleNoteDelta=c.value-chan[c.chan].sampleNote;
} else if (chan[c.chan].sampleNote!=DIV_NOTE_NULL) {
dacSample=ins->amiga.getSample(chan[c.chan].sampleNote);
c.value=ins->amiga.getFreq(chan[c.chan].sampleNote);
}
if (dacSample<0 || dacSample>=parent->song.sampleLen) {
dacSample=-1;
if (dumpWrites) addWrite(0xffff0002,0);
break;
} else {
if (dumpWrites) addWrite(0xffff0000,dacSample);
}
if (chan[c.chan].setPos) {
chan[c.chan].setPos=false;
} else {
dacPos=0;
}
dacPeriod=0;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=parent->calcBaseFreq(1,1,c.value,false);
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
chan[c.chan].furnaceDac=true;
} else {
assert(false && "LEGACY SAMPLE MODE!!!");
if (c.value!=DIV_NOTE_NULL) {
dacSample=ins->amiga.getSample(c.value);
chan[c.chan].sampleNote=c.value;
c.value=ins->amiga.getFreq(c.value);
chan[c.chan].sampleNoteDelta=c.value-chan[c.chan].sampleNote;
} else if (chan[c.chan].sampleNote!=DIV_NOTE_NULL) {
dacSample=ins->amiga.getSample(chan[c.chan].sampleNote);
c.value=ins->amiga.getFreq(chan[c.chan].sampleNote);
}
if (dacSample<0 || dacSample>=parent->song.sampleLen) {
dacSample=-1;
if (dumpWrites) addWrite(0xffff0002,0);
break;
} else {
if (dumpWrites) addWrite(0xffff0000,dacSample);
}
if (chan[c.chan].setPos) {
chan[c.chan].setPos=false;
} else {
dacPos=0;
}
dacPeriod=0;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=parent->calcBaseFreq(1,1,c.value,false);
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
break;
} else {
if (c.value!=DIV_NOTE_NULL) {