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add song tuning

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soon: system clock settings
This commit is contained in:
tildearrow 2022-01-28 00:55:51 -05:00
parent 0071894471
commit ec66b7a21b
26 changed files with 211 additions and 156 deletions
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4
src/engine/platform/tia.cpp
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@ -9,12 +9,12 @@ void DivPlatformTIA::acquire(short* bufL, short* bufR, size_t start, size_t len)
tia.process(bufL+start,len);
}
unsigned char dealWithFreq(unsigned char shape, int base, int pitch) {
unsigned char DivPlatformTIA::dealWithFreq(unsigned char shape, int base, int pitch) {
if (base&0x80000000 && ((base&0x7fffffff)<32)) {
return base&0x1f;
}
int bp=base+pitch;
double mult=0.25*27.5*pow(2.0,double(768+bp)/(256.0*12.0));
double mult=0.25*(parent->song.tuning*0.0625)*pow(2.0,double(768+bp)/(256.0*12.0));
switch (shape) {
case 1: // buzzy
return ceil(31400/(30.6*mult))-1;