diff options
| author | Gunnar Sletta <gunnar.sletta@jollamobile.com> | 2015-01-16 10:43:21 +0100 |
|---|---|---|
| committer | Gunnar Sletta <gunnar@sletta.org> | 2015-01-21 18:38:23 +0100 |
| commit | 6338b1421ef5a9928df25dde5ef62c6b11682da6 (patch) | |
| tree | 617c267292bee0bb03888f255cb43778265619ca /src/gui/kernel/qguiapplication.cpp | |
| parent | bdbcf6704f4b0e7d9aaa522cc69e730148080cb8 (diff) | |
Safeguard QScreen::refreshRate against buggy platform behavior
Change-Id: I891bd5272db76e8562f6722b633cc0fdaac5f7a2
Task-number: QTBUG-43853
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
Diffstat (limited to 'src/gui/kernel/qguiapplication.cpp')
| -rw-r--r-- | src/gui/kernel/qguiapplication.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp index dc5501eaf5..928d0cddc9 100644 --- a/src/gui/kernel/qguiapplication.cpp +++ b/src/gui/kernel/qguiapplication.cpp @@ -2578,9 +2578,14 @@ void QGuiApplicationPrivate::reportRefreshRateChange(QWindowSystemInterfacePriva return; QScreen *s = e->screen.data(); - s->d_func()->refreshRate = e->rate; - - emit s->refreshRateChanged(s->refreshRate()); + qreal rate = e->rate; + // safeguard ourselves against buggy platform behavior... + if (rate < 1.0) + rate = 60.0; + if (!qFuzzyCompare(s->d_func()->refreshRate, rate)) { + s->d_func()->refreshRate = rate; + emit s->refreshRateChanged(s->refreshRate()); + } } void QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent *e) |