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This is probably a better way to schedule execution.

Browse source 
One step ahead rather than one step behind.

Signed-off-by: Andrea Odetti <mariofutire@gmail.com>
This commit is contained in:
Andrea Odetti 2019-11-07 21:30:05 +00:00
parent 730e35150a
commit 54a1bb4991
1 changed files with 11 additions and 3 deletions
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14
source/frontends/qapple/qapple.cpp
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@ -228,11 +228,20 @@ void QApple::closeEvent(QCloseEvent *)
void QApple::on_timer()
{
const qint64 target = myElapsedTimer.elapsed();
if (!myElapsedTimer.isValid())
{
myElapsedTimer.start();
myCpuTimeReference = emulatorTimeInMS();
}
// target x ms ahead of where we are now, which is when the timer should be called again
const qint64 target = myElapsedTimer.elapsed() + myMSGap;
const qint64 current = emulatorTimeInMS() - myCpuTimeReference;
const qint64 elapsed = target - current;
if (elapsed <= 0)
{
// we got ahead of the timer by a lot
// wait next call
return;
}
@ -279,8 +288,7 @@ void QApple::stopTimer()
void QApple::restartTimeCounters()
{
myElapsedTimer.start();
myCpuTimeReference = emulatorTimeInMS();
myElapsedTimer.invalidate();
}
void QApple::on_actionStart_triggered()