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better loop tracking

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This commit is contained in:
tildearrow 2021-12-21 02:02:25 -05:00
parent 8d8f26d4f7
commit 5523a43804
3 changed files with 21 additions and 9 deletions
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26
src/engine/engine.cpp
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@ -1419,14 +1419,20 @@ void DivEngine::setLoops(int loops) {
remainingLoops=loops;
}
void DivEngine::playSub() {
void DivEngine::playSub(bool preserveDrift) {
reset();
if (preserveDrift && curOrder==0) return;
int goal=curOrder;
curOrder=0;
curRow=0;
int prevDrift=clockDrift;
clockDrift=0;
cycles=0;
ticks=1;
if (preserveDrift) {
endOfSong=false;
} else {
ticks=1;
}
speedAB=false;
playing=true;
dispatch->setSkipRegisterWrites(true);
@ -1435,14 +1441,20 @@ void DivEngine::playSub() {
}
dispatch->setSkipRegisterWrites(false);
dispatch->forceIns();
clockDrift=0;
cycles=0;
ticks=1;
if (preserveDrift) {
clockDrift=prevDrift;
} else {
clockDrift=0;
}
if (!preserveDrift) {
cycles=0;
ticks=1;
}
}
void DivEngine::play() {
isBusy.lock();
playSub();
playSub(false);
isBusy.unlock();
}
@ -1682,7 +1694,7 @@ void DivEngine::setOrder(unsigned char order) {
curOrder=order;
if (order>=song.ordersLen) curOrder=0;
if (playing) {
playSub();
playSub(false);
}
isBusy.unlock();
}