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fix non-linear pitch

This commit is contained in:
tildearrow 2022-05-19 23:18:18 -05:00
parent 58dc628a40
commit 0ef0296b7d
4 changed files with 7 additions and 7 deletions
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6
src/engine/platform/genesis.cpp
View File

@ -472,9 +472,9 @@ void DivPlatformGenesis::tick(bool sysTick) {
if (i==2 && extMode) continue;
if (chan[i].freqChanged) {
if (parent->song.linearPitch==2) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,4,chan[i].pitch2,chipClock,CHIP_FREQBASE,11);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE,11);
} else {
int fNum=parent->calcFreq(chan[i].baseFreq&0x7ff,chan[i].pitch,false,4,chan[i].pitch2,chipClock,CHIP_FREQBASE,11);
int fNum=parent->calcFreq(chan[i].baseFreq&0x7ff,chan[i].pitch,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE,11);
int block=(chan[i].baseFreq&0xf800)>>11;
if (fNum<0) fNum=0;
if (fNum>2047) {
@ -499,7 +499,7 @@ void DivPlatformGenesis::tick(bool sysTick) {
off=(double)s->centerRate/8363.0;
}
}
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,4,chan[i].pitch2,1,1);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,2,chan[i].pitch2,1,1);
dacRate=chan[i].freq*off;
if (dacRate<1) dacRate=1;
if (dumpWrites) addWrite(0xffff0001,dacRate);

4
src/engine/platform/genesisext.cpp
View File

@ -461,9 +461,9 @@ void DivPlatformGenesisExt::tick(bool sysTick) {
if (extMode) for (int i=0; i<4; i++) {
if (opChan[i].freqChanged) {
if (parent->song.linearPitch==2) {
opChan[i].freq=parent->calcFreq(opChan[i].baseFreq,opChan[i].pitch,false,4,opChan[i].pitch2,chipClock,CHIP_FREQBASE,11);
opChan[i].freq=parent->calcFreq(opChan[i].baseFreq,opChan[i].pitch,false,2,opChan[i].pitch2,chipClock,CHIP_FREQBASE,11);
} else {
int fNum=parent->calcFreq(opChan[i].baseFreq&0x7ff,opChan[i].pitch,false,4,opChan[i].pitch2);
int fNum=parent->calcFreq(opChan[i].baseFreq&0x7ff,opChan[i].pitch,false,2,opChan[i].pitch2);
int block=(opChan[i].baseFreq&0xf800)>>11;
if (fNum<0) fNum=0;
if (fNum>2047) {

2
src/engine/platform/n163.cpp
View File

@ -358,7 +358,7 @@ void DivPlatformN163::tick(bool sysTick) {
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
// TODO: what is this mess?
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,0,chan[i].pitch2,chipClock,CHIP_FREQBASE);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE);
chan[i].freq=(((chan[i].freq*chan[i].waveLen)*(chanMax+1))/16);
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>0x3ffff) chan[i].freq=0x3ffff;

2
src/engine/platform/zxbeeper.cpp
View File

@ -115,7 +115,7 @@ void DivPlatformZXBeeper::tick(bool sysTick) {
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
if (chan[i].active) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,0,chan[i].pitch2,chipClock,CHIP_FREQBASE);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE);
if (chan[i].freq>65535) chan[i].freq=65535;
}
if (chan[i].keyOn) {