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better pitch slides

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now digital warmth doesn't choke at the toms
This commit is contained in:
tildearrow 2021-05-19 14:39:39 -05:00
parent 79f15fcbd8
commit 26463fd8d9
4 changed files with 58 additions and 43 deletions
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21
src/engine/platform/genesisext.cpp
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@ -99,20 +99,29 @@ int DivPlatformGenesisExt::dispatch(DivCommand c) {
}
case DIV_CMD_NOTE_PORTA: {
int destFreq=644.0f*pow(2.0f,((float)c.value2/12.0f));
int newFreq;
bool return2=false;
if (destFreq>opChan[ch].baseFreq) {
opChan[ch].baseFreq=opChan[ch].baseFreq+c.value*octave(opChan[ch].baseFreq);
if (opChan[ch].baseFreq>=destFreq) {
opChan[ch].baseFreq=destFreq;
newFreq=opChan[ch].baseFreq+c.value*octave(opChan[ch].baseFreq);
if (newFreq>=destFreq) {
newFreq=destFreq;
return2=true;
}
} else {
opChan[ch].baseFreq=opChan[ch].baseFreq-c.value*octave(opChan[ch].baseFreq);
if (opChan[ch].baseFreq<=destFreq) {
opChan[ch].baseFreq=destFreq;
newFreq=opChan[ch].baseFreq-c.value*octave(opChan[ch].baseFreq);
if (newFreq<=destFreq) {
newFreq=destFreq;
return2=true;
}
}
if (!opChan[ch].portaPause) {
if (octave(opChan[ch].baseFreq)!=octave(newFreq)) {
opChan[ch].portaPause=true;
break;
}
}
opChan[ch].baseFreq=newFreq;
opChan[ch].portaPause=false;
opChan[ch].freqChanged=true;
if (return2) return 2;
break;