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pattern data refactor, part 1

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this first stage changes the way notes are encoded
instead of note/octave, it is just note
This commit is contained in:
tildearrow 2025-10-14 05:07:35 -05:00
parent 7d7d95a97d
commit d4ecf4045b
10 changed files with 447 additions and 465 deletions
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57
src/engine/engine.cpp
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@ -2293,6 +2293,63 @@ int DivEngine::getEffectiveSampleRate(int rate) {
return rate;
}
short DivEngine::splitNoteToNote(short note, short octave) {
if (note==100) {
return DIV_NOTE_OFF;
} else if (note==101) {
return DIV_NOTE_REL;
} else if (note==102) {
return DIV_MACRO_REL;
} else if (note==0 && octave!=0) {
// "BUG" note!
return DIV_NOTE_NULL_PAT;
} else if (note==0 && octave==0) {
return -1;
} else {
int seek=(note+(signed char)octave*12)+60;
if (seek<0 || seek>=180) {
return DIV_NOTE_NULL_PAT;
} else {
return seek;
}
}
return -1;
}
void DivEngine::noteToSplitNote(short note, short& outNote, short& outOctave) {
switch (note) {
case DIV_NOTE_OFF:
outNote=100;
outOctave=0;
break;
case DIV_NOTE_REL:
outNote=101;
outOctave=0;
break;
case DIV_MACRO_REL:
outNote=102;
outOctave=0;
break;
case DIV_NOTE_NULL_PAT:
// "BUG" note!
outNote=0;
outOctave=1;
break;
case -1:
outNote=0;
outOctave=0;
default:
outNote=note%12;
outOctave=(unsigned char)(note-60)/12;
if (outNote==0) {
outNote=12;
outOctave--;
}
break;
}
}
void DivEngine::previewSample(int sample, int note, int pStart, int pEnd) {
BUSY_BEGIN;
previewSampleNoLock(sample,note,pStart,pEnd);