int main( int argc, char ** argv )
{
QApplication a( argc, argv );
QSurfaceFormat format;
format.setDepthBufferSize(16);
QSurfaceFormat::setDefaultFormat(format);
// Two top-level windows with two QOpenGLWidget children in each.
// The rendering for the four QOpenGLWidgets happens on four separate threads.
GLWidget topLevelGlWidget;
QPoint pos = QApplication::desktop()->availableGeometry(&topLevelGlWidget).topLeft() + QPoint(200, 200);
topLevelGlWidget.setWindowTitle(QStringLiteral("Threaded QOpenGLWidget example top level"));
topLevelGlWidget.resize(200, 200);
topLevelGlWidget.move(pos);
topLevelGlWidget.show();
const QString glInfo = getGlString(topLevelGlWidget.context()->functions(), GL_VENDOR)
+ QLatin1Char('/') + getGlString(topLevelGlWidget.context()->functions(), GL_RENDERER);
const bool supportsThreading = !glInfo.contains(QLatin1String("nouveau"), Qt::CaseInsensitive)
&& !glInfo.contains(QLatin1String("ANGLE"), Qt::CaseInsensitive)
&& !glInfo.contains(QLatin1String("llvmpipe"), Qt::CaseInsensitive);
const QString toolTip = supportsThreading ? glInfo : glInfo + QStringLiteral("\ndoes not support threaded OpenGL.");
topLevelGlWidget.setToolTip(toolTip);
QScopedPointer<MainWindow> mw1;
QScopedPointer<MainWindow> mw2;
if (!QApplication::arguments().contains(QStringLiteral("--single"))) {
if (supportsThreading) {
pos += QPoint(100, 100);
mw1.reset(new MainWindow);
mw1->setToolTip(toolTip);
mw1->move(pos);
mw1->setWindowTitle(QStringLiteral("Threaded QOpenGLWidget example #1"));
mw1->show();
pos += QPoint(100, 100);
mw2.reset(new MainWindow);
mw2->setToolTip(toolTip);
mw2->move(pos);
mw2->setWindowTitle(QStringLiteral("Threaded QOpenGLWidget example #2"));
mw2->show();
} else {
qWarning() << toolTip;
}
}
return a.exec();
}
/** void QWidget::setToolTip(const QString &text)
* bind/QWidget.h:39
*/
static int GLWidget_setToolTip(lua_State *L) {
try {
GLWidget *self = *((GLWidget **)dub_checksdata(L, 1, "mimas.GLWidget"));
size_t text_sz_;
const char *text = dub_checklstring(L, 2, &text_sz_);
self->setToolTip(QString::fromUtf8(text, text_sz_));
return 0;
} catch (std::exception &e) {
lua_pushfstring(L, "setToolTip: %s", e.what());
} catch (...) {
lua_pushfstring(L, "setToolTip: Unknown exception");
}
return dub_error(L);
}
