FGFS-4.1/OpenSceneGraph
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From Jannik Heller, "Fix for Qt4 multi-threaded crash. This patch adds the AA_X11InitThreads flag to the QApplication setup, meaning QT will call XInitThreads for us. This also bumps the required QT version to 4.8+, because the AA_X11InitThreads flag was introduced in that version. If that is not acceptable, we could add a QT_VERSION >= 0x040800 guard, or manually call XInitThreads() instead. Let me know what you think."

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14804 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield 2015-03-20 11:48:21 +00:00
parent 63a3595aab
commit 6854d2968f
1 changed files with 6 additions and 0 deletions
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6
examples/osgviewerQt/osgviewerQt.cpp
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@ -105,6 +105,12 @@ int main( int argc, char** argv )
while (arguments.read("--DrawThreadPerContext")) threadingModel = osgViewer::ViewerBase::DrawThreadPerContext;
while (arguments.read("--CullThreadPerCameraDrawThreadPerContext")) threadingModel = osgViewer::ViewerBase::CullThreadPerCameraDrawThreadPerContext;
#if QT_VERSION >= 0x040800
// Required for multithreaded QGLWidget on Linux/X11, see http://blog.qt.io/blog/2011/06/03/threaded-opengl-in-4-8/
if (threadingModel != osgViewer::ViewerBase::SingleThreaded)
QApplication::setAttribute(Qt::AA_X11InitThreads);
#endif
QApplication app(argc, argv);
ViewerWidget* viewWidget = new ViewerWidget(0, Qt::Widget, threadingModel);
viewWidget->setGeometry( 100, 100, 800, 600 );