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add effects to change virtual tempo

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tildearrow 2024-03-15 14:56:55 -05:00
parent 779d1aeb61
commit 3512591fd1
7 changed files with 50 additions and 8 deletions
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23
src/engine/engine.cpp
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@ -141,6 +141,10 @@ const char* DivEngine::getEffectDesc(unsigned char effect, int chan, bool notNul
return "FAxx: Fast volume slide (0y: down; x0: up)";
case 0xfc:
return "FCxx: Note release";
case 0xfd:
return "FDxx: Set virtual tempo numerator";
case 0xfe:
return "FExx: Set virtual tempo denominator";
case 0xff:
return "FFxx: Stop song";
default:
@ -1683,7 +1687,7 @@ void DivEngine::playSub(bool preserveDrift, int goalRow) {
runMidiTime(cycles);
}
if (oldOrder!=curOrder) break;
if (ticks-((tempoAccum+curSubSong->virtualTempoN)/MAX(1,curSubSong->virtualTempoD))<1 && curRow>=goalRow) break;
if (ticks-((tempoAccum+virtualTempoN)/MAX(1,virtualTempoD))<1 && curRow>=goalRow) break;
}
for (int i=0; i<song.systemLen; i++) disCont[i].dispatch->setSkipRegisterWrites(false);
if (goal>0 || goalRow>0) {
@ -2121,6 +2125,8 @@ void DivEngine::reset() {
extValue=0;
extValuePresent=0;
speeds=curSubSong->speeds;
virtualTempoN=curSubSong->virtualTempoN;
virtualTempoD=curSubSong->virtualTempoD;
firstTick=false;
shallStop=false;
shallStopSched=false;
@ -2368,6 +2374,21 @@ float DivEngine::getCurHz() {
return divider;
}
short DivEngine::getVirtualTempoN() {
return virtualTempoN;
}
short DivEngine::getVirtualTempoD() {
return virtualTempoD;
}
void DivEngine::virtualTempoChanged() {
BUSY_BEGIN;
virtualTempoN=curSubSong->virtualTempoN;
virtualTempoD=curSubSong->virtualTempoD;
BUSY_END;
}
int DivEngine::getTotalSeconds() {
return totalSeconds;
}