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Qt: Fix up GL changes causing timing issues

This commit is contained in:
Vicki Pfau 2020-11-29 22:03:03 -08:00
parent 2d6087aa98
commit 60ec3e0e99
1 changed files with 7 additions and 6 deletions
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13
src/platform/qt/DisplayGL.cpp
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@ -441,7 +441,7 @@ void PainterGL::draw() {
if (!mCoreSyncWaitFrameStart(sync)) { if (!mCoreSyncWaitFrameStart(sync)) {
mCoreSyncWaitFrameEnd(sync); mCoreSyncWaitFrameEnd(sync);
++m_lagging; ++m_lagging;
if (m_delayTimer.elapsed() < 1000 / m_surface->screen()->refreshRate()) { if ((sync->audioWait || sync->videoFrameWait) && m_delayTimer.elapsed() < 1000 / m_surface->screen()->refreshRate()) {
QTimer::singleShot(1, this, &PainterGL::draw); QTimer::singleShot(1, this, &PainterGL::draw);
} }
return; return;
@ -453,16 +453,18 @@ void PainterGL::draw() {
} }
if (!m_delayTimer.isValid()) { if (!m_delayTimer.isValid()) {
m_delayTimer.start(); m_delayTimer.start();
} else if (sync->audioWait || sync->videoFrameWait) { } else {
while (m_delayTimer.nsecsElapsed() + 2000000 < 1000000000 / sync->fpsTarget) { if (sync->audioWait || sync->videoFrameWait) {
QThread::usleep(500); while (m_delayTimer.nsecsElapsed() + 2000000 < 1000000000 / sync->fpsTarget) {
QThread::usleep(500);
}
} }
m_delayTimer.restart();
} }
mCoreSyncWaitFrameEnd(sync); mCoreSyncWaitFrameEnd(sync);
performDraw(); performDraw();
m_backend->swap(m_backend); m_backend->swap(m_backend);
m_delayTimer.restart();
} }
void PainterGL::forceDraw() { void PainterGL::forceDraw() {
@ -546,7 +548,6 @@ void PainterGL::dequeue() {
m_buffer = nullptr; m_buffer = nullptr;
} }
m_buffer = buffer; m_buffer = buffer;
return;
} }
void PainterGL::dequeueAll() { void PainterGL::dequeueAll() {