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Ensures no retraces are missed.

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This commit is contained in:
Thomas Harte 2020-12-09 20:32:26 -05:00
parent 394f6b58d8
commit 49cee90b4d
1 changed files with 7 additions and 7 deletions
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14
OSBindings/Mac/Clock Signal/Machine/CSMachine.mm
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@ -244,12 +244,6 @@ struct ActivityObserver: public Activity::Observer {
[_delegateMachineAccessLock lock]; [_delegateMachineAccessLock lock];
_speakerDelegate.machine = nil; _speakerDelegate.machine = nil;
[_delegateMachineAccessLock unlock]; [_delegateMachineAccessLock unlock];
// [_view performWithGLContext:^{
// @synchronized(self) {
// self->_scanTarget.reset();
// }
// }];
} }
- (Outputs::Speaker::Speaker *)speaker { - (Outputs::Speaker::Speaker *)speaker {
@ -765,7 +759,11 @@ struct ActivityObserver: public Activity::Observer {
} }
// If this tick includes vsync then inspect the machine. // If this tick includes vsync then inspect the machine.
if(timeNow >= self->_syncTime && lastTime < self->_syncTime) { //
// _syncTime = 0 is used here as a sentinel to mark that a sync time is known;
// this with the >= test ensures that no syncs are missed even if some sort of
// performance problem is afoot (e.g. I'm debugging).
if(self->_syncTime && timeNow >= self->_syncTime) {
splitAndSync = self->_isSyncLocking = self->_scanSynchroniser.can_synchronise(self->_machine->scan_producer()->get_scan_status(), self->_refreshPeriod); splitAndSync = self->_isSyncLocking = self->_scanSynchroniser.can_synchronise(self->_machine->scan_producer()->get_scan_status(), self->_refreshPeriod);
// If the time window is being split, run up to the split, then check out machine speed, possibly // If the time window is being split, run up to the split, then check out machine speed, possibly
@ -777,6 +775,8 @@ struct ActivityObserver: public Activity::Observer {
); );
self->_machine->timed_machine()->run_for((double)(timeNow - self->_syncTime) / 1e9); self->_machine->timed_machine()->run_for((double)(timeNow - self->_syncTime) / 1e9);
} }
self->_syncTime = 0;
} }
// If the time window is being split, run up to the split, then check out machine speed, possibly // If the time window is being split, run up to the split, then check out machine speed, possibly