diff options
| author | Robin Burchell <robin.burchell@jollamobile.com> | 2013-11-26 14:59:19 +0100 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-11-27 14:19:13 +0100 |
| commit | 7811c22f8a18d14b33c04ca00e6b2b6ea5aef8df (patch) | |
| tree | 09d2ec006e38767ca155aa36696328af52bc824b /src/quick | |
| parent | 3c9c35b648e32082b30786fe71d4db33ffe2b5a6 (diff) | |
Delay renderWindow with a timer
Add an exhaust delay to QSGGuiThreadRenderLoop. Some updates
may be done with posted events, and maybeUpdate event competed
with those, leading to partial updates and frames drawn twice.
Change-Id: I532bff692c597eeba5bbd6def89ae68c80fdd69b
Done-with: Mikko Harju <mikko.harju@jollamobile.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Diffstat (limited to 'src/quick')
| -rw-r--r-- | src/quick/scenegraph/qsgrenderloop.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/quick/scenegraph/qsgrenderloop.cpp b/src/quick/scenegraph/qsgrenderloop.cpp index aa0d7b5a6c..52df55fa92 100644 --- a/src/quick/scenegraph/qsgrenderloop.cpp +++ b/src/quick/scenegraph/qsgrenderloop.cpp @@ -122,6 +122,7 @@ public: QSGRenderContext *rc; QImage grabContent; + int m_update_timer; bool eventPending; }; @@ -384,7 +385,8 @@ void QSGGuiThreadRenderLoop::maybeUpdate(QQuickWindow *window) m_windows[window].updatePending = true; if (!eventPending) { - QCoreApplication::postEvent(this, new QEvent(QEvent::User)); + const int exhaust_delay = 5; + m_update_timer = startTimer(exhaust_delay, Qt::PreciseTimer); eventPending = true; } } @@ -399,8 +401,10 @@ QSGContext *QSGGuiThreadRenderLoop::sceneGraphContext() const bool QSGGuiThreadRenderLoop::event(QEvent *e) { - if (e->type() == QEvent::User) { + if (e->type() == QEvent::Timer) { eventPending = false; + killTimer(m_update_timer); + m_update_timer = 0; for (QHash<QQuickWindow *, WindowData>::const_iterator it = m_windows.constBegin(); it != m_windows.constEnd(); ++it) { const WindowData &data = it.value(); |