Details
P2: Important Description
for certain reason, we need to create shared opengl context,
so we set QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
then we request opengl 4.0 context
QSurfaceFormat format;
format.setMajorVersion( 4 );
format.setMinorVersion( 0 );
format.setProfile( QSurfaceFormat::CoreProfile );
but Qt will crash in qt's cocoa plugin:
0 objc_msgSend objc_msgSend 0x7fff89e630dd 1 QCocoaGLContext::QCocoaGLContext(QSurfaceFormat const&, QPlatformOpenGLContext *, QVariant const&) QCocoaGLContext::QCocoaGLContext(QSurfaceFormat const&, QPlatformOpenGLContext*, QVariant const&) 0x1041df088 2 QCocoaIntegration::createPlatformOpenGLContext(QOpenGLContext *) const QCocoaIntegration::createPlatformOpenGLContext(QOpenGLContext*) const 0x10419b073 3 QOpenGLContext::create() QOpenGLContext::create() 0x10073b79b 4 QWidgetPrivate::shareContext() const QWidgetPrivate::shareContext() const 0x10007fc5c 5 QOpenGLWidgetPrivate::initialize() QOpenGLWidgetPrivate::initialize() 0x1000a04de 6 QOpenGLWidget::resizeEvent(QResizeEvent *) QOpenGLWidget::resizeEvent(QResizeEvent*) 0x1000a158c 7 QWidget::event(QEvent *) QWidget::event(QEvent*) 0x10007b342 8 QApplicationPrivate::notify_helper(QObject *, QEvent *) QApplicationPrivate::notify_helper(QObject*, QEvent*) 0x10003c6fb 9 QApplication::notify(QObject *, QEvent *) QApplication::notify(QObject*, QEvent*) 0x10003fade 10 QCoreApplication::notifyInternal(QObject *, QEvent *) QCoreApplication::notifyInternal(QObject*, QEvent*) 0x100e8e1b3 11 QWidgetPrivate::sendPendingMoveAndResizeEvents(bool, bool) QWidgetPrivate::sendPendingMoveAndResizeEvents(bool, bool) 0x100073eb7 12 QWidgetPrivate::show_helper() QWidgetPrivate::show_helper() 0x100079bda 13 QWidget::setVisible(bool) QWidget::setVisible(bool) 0x10007a833 14 QWidgetPrivate::showChildren(bool) QWidgetPrivate::showChildren(bool) 0x100079fd0 15 QWidgetPrivate::show_helper() QWidgetPrivate::show_helper() 0x100079bfc 16 QWidget::setVisible(bool) QWidget::setVisible(bool) 0x10007a833 17 QWidgetPrivate::showChildren(bool) QWidgetPrivate::showChildren(bool) 0x100079fd0 18 QWidgetPrivate::show_helper() QWidgetPrivate::show_helper() 0x100079bfc 19 QWidget::setVisible(bool) QWidget::setVisible(bool) 0x10007a833 20 main main.cpp 16 0x100002fcb 21 start start 0x100002f14
Please see the attachment for a simple repro program