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SN: fix easy noise

This commit is contained in:
tildearrow 2022-12-08 01:10:02 -05:00
parent d0dca236ab
commit 0ee8309432
1 changed files with 2 additions and 3 deletions
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5
src/engine/platform/sms.cpp
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@ -126,8 +126,7 @@ double DivPlatformSMS::NOTE_SN(int ch, int note) {
return NOTE_PERIODIC(note);
}
int easyStartingPeriod=16;
//int easyThreshold=round(CHIP_CLOCK/(parent->song.tuning*0.0625*pow(2.0,(float)(nbase+384)/(128.0*12.0)))/CHIP_DIVIDER);
int easyThreshold=round(log((chipClock/(easyStartingPeriod*CHIP_DIVIDER))/parent->song.tuning)/log(2.0));
int easyThreshold=round(12.0*log((chipClock/(easyStartingPeriod*CHIP_DIVIDER))/(0.0625*parent->song.tuning))/log(2.0))-3;
if (note>easyThreshold) {
return MAX(0,easyStartingPeriod-(note-easyThreshold));
}
@ -138,7 +137,7 @@ int DivPlatformSMS::snCalcFreq(int ch) {
double CHIP_DIVIDER=toneDivider;
if (ch==3) CHIP_DIVIDER=noiseDivider;
int easyStartingPeriod=16;
int easyThreshold=round(128.0*log((chipClock/(easyStartingPeriod*CHIP_DIVIDER))/parent->song.tuning)/log(2.0));
int easyThreshold=round(128.0*12.0*log((chipClock/(easyStartingPeriod*CHIP_DIVIDER))/(0.0625*parent->song.tuning))/log(2.0))-384+64;
if (parent->song.linearPitch==2 && easyNoise && chan[ch].baseFreq+chan[ch].pitch+chan[ch].pitch2>(easyThreshold)) {
int ret=(((easyStartingPeriod<<7))-(chan[ch].baseFreq+chan[ch].pitch+chan[ch].pitch2-(easyThreshold)))>>7;
if (ret<0) ret=0;