diff options
| author | Laszlo Agocs <laszlo.agocs@theqtcompany.com> | 2015-12-01 12:31:14 +0100 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@theqtcompany.com> | 2015-12-09 09:36:20 +0000 |
| commit | 1b61390856ce336c82f7b99def574775893bf4f2 (patch) | |
| tree | 86dc2d87ea934cb2ed9a5451c7bdad245e56d9ed /src/gui | |
| parent | 8f74fe1b66aed3ca26a9721359472c86d0beeb5b (diff) | |
Reduce flushes with repaint() when GL-based compositing is active
Task-number: QTBUG-49655
Change-Id: I7a5d08f681a7d87709aac745154730764040e922
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/kernel/qwindow_p.h | 2 | ||||
| -rw-r--r-- | src/gui/painting/qplatformbackingstore.cpp | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/gui/kernel/qwindow_p.h b/src/gui/kernel/qwindow_p.h index 23a6d800c0..6880edaada 100644 --- a/src/gui/kernel/qwindow_p.h +++ b/src/gui/kernel/qwindow_p.h @@ -50,6 +50,7 @@ #include <qpa/qplatformwindow.h> #include <QtCore/private/qobject_p.h> +#include <QtCore/qelapsedtimer.h> #include <QtGui/QIcon> QT_BEGIN_NAMESPACE @@ -187,6 +188,7 @@ public: #endif bool compositing; + QElapsedTimer lastComposeTime; }; diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index 4e26d8f741..cda2446a5e 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -301,6 +301,8 @@ void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®i return; } + QWindowPrivate::get(window)->lastComposeTime.start(); + QOpenGLFunctions *funcs = context->functions(); funcs->glViewport(0, 0, window->width() * window->devicePixelRatio(), window->height() * window->devicePixelRatio()); funcs->glClearColor(0, 0, 0, translucentBackground ? 0 : 1); |