mirror of https://github.com/OpenMW/openmw.git
Migrate from GraphicsWindowQt to QOpenGLWidget
Andrei Kortunov
2 years ago
parent
b0a129d6e4
commit
8df7ce545e
@ -0,0 +1,119 @@
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#include "CompositeOsgRenderer.hpp"
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#include "osgQOpenGLWidget.hpp"
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#include <mutex>
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#include <osgViewer/View>
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#include <thread>
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CompositeOsgRenderer::CompositeOsgRenderer(QObject* parent)
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: QObject(parent), osgViewer::CompositeViewer(), mSimulationTime(0.0)
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{
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_firstFrame = true;
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}
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CompositeOsgRenderer::CompositeOsgRenderer(osg::ArgumentParser* arguments, QObject* parent)
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: QObject(parent), osgViewer::CompositeViewer(*arguments), mSimulationTime(0.0)
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{
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_firstFrame = true;
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}
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CompositeOsgRenderer::~CompositeOsgRenderer()
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{
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}
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void CompositeOsgRenderer::update()
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{
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double dt = mFrameTimer.time_s();
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mFrameTimer.setStartTick();
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emit simulationUpdated(dt);
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mSimulationTime += dt;
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osgQOpenGLWidget* osgWidget = dynamic_cast<osgQOpenGLWidget*>(parent());
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if (osgWidget)
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{
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osgWidget->update();
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}
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double minFrameTime = _runMaxFrameRate > 0.0 ? 1.0 / _runMaxFrameRate : 0.0;
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if (dt < minFrameTime)
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{
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std::this_thread::sleep_for(std::chrono::duration<double>(minFrameTime - dt));
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}
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}
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void CompositeOsgRenderer::resize(int windowWidth, int windowHeight)
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{
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if(!m_osgInitialized)
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return;
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for(RefViews::iterator itr = _views.begin();
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itr != _views.end();
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++itr)
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{
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osgViewer::View* view = itr->get();
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if(view)
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{
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m_osgWinEmb->resized(0, 0, windowWidth, windowHeight);
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m_osgWinEmb->getEventQueue()->windowResize(0, 0, windowWidth, windowHeight);
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}
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}
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update();
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}
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void CompositeOsgRenderer::setGraphicsWindowEmbedded(osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> osgWinEmb)
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{
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m_osgWinEmb = osgWinEmb;
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}
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void CompositeOsgRenderer::setupOSG()
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{
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m_osgInitialized = true;
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m_osgWinEmb->getEventQueue()->syncWindowRectangleWithGraphicsContext();
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// disable key event (default is Escape key) that the viewer checks on each
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// frame to see
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// if the viewer's done flag should be set to signal end of viewers main
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// loop.
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setKeyEventSetsDone(0);
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setReleaseContextAtEndOfFrameHint(false);
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setThreadingModel(osgViewer::CompositeViewer::SingleThreaded);
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setRunFrameScheme(osgViewer::ViewerBase::ON_DEMAND);
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connect( &mTimer, SIGNAL(timeout()), this, SLOT(update()) );
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mTimer.start( 10 );
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osgViewer::CompositeViewer::Windows windows;
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getWindows(windows);
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}
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// called from ViewerWidget paintGL() method
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void CompositeOsgRenderer::frame(double simulationTime)
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{
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if(_done) return;
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if(_firstFrame)
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{
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viewerInit();
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realize();
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_firstFrame = false;
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}
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advance(simulationTime);
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eventTraversal();
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updateTraversal();
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renderingTraversals();
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}
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void CompositeOsgRenderer::timerEvent(QTimerEvent* /*event*/)
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{
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// ask ViewerWidget to update 3D view
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if(getRunFrameScheme() != osgViewer::ViewerBase::ON_DEMAND || checkNeedToDoFrame())
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{
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update();
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}
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}
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@ -0,0 +1,46 @@
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#ifndef COMPOSITEOSGRENDERER_H
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#define COMPOSITEOSGRENDERER_H
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#include <QObject>
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#include <QTimer>
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#include <osgViewer/CompositeViewer>
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class CompositeOsgRenderer : public QObject, public osgViewer::CompositeViewer
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{
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bool m_osgInitialized {false};
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osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> m_osgWinEmb;
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osg::Timer mFrameTimer;
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double mSimulationTime;
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Q_OBJECT
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public:
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explicit CompositeOsgRenderer(QObject* parent = nullptr);
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explicit CompositeOsgRenderer(osg::ArgumentParser* arguments, QObject* parent = nullptr);
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~CompositeOsgRenderer() override;
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virtual void resize(int windowWidth, int windowHeight);
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void setGraphicsWindowEmbedded(osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> osgWinEmb);
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void setupOSG();
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// overrided from osgViewer::ViewerBase
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void frame(double simulationTime = USE_REFERENCE_TIME) override;
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QTimer mTimer;
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protected:
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void timerEvent(QTimerEvent* event) override;
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public slots:
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void update();
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signals:
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void simulationUpdated(double dt);
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};
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#endif // COMPOSITEOSGRENDERER_H
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@ -1,155 +0,0 @@
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 2009 Wang Rui
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGVIEWER_GRAPHICSWINDOWQT
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#define OSGVIEWER_GRAPHICSWINDOWQT
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#include <osgViewer/GraphicsWindow>
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#include <QMutex>
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#include <QEvent>
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#include <QQueue>
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#include <QSet>
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#include <QGLWidget>
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class QInputEvent;
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class QGestureEvent;
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namespace osgViewer {
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class ViewerBase;
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}
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namespace osgQt
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{
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// forward declarations
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class GraphicsWindowQt;
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class GLWidget : public QGLWidget
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{
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typedef QGLWidget inherited;
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public:
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GLWidget( QWidget* parent = nullptr, const QGLWidget* shareWidget = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
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GLWidget( QGLContext* context, QWidget* parent = nullptr, const QGLWidget* shareWidget = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
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GLWidget( const QGLFormat& format, QWidget* parent = nullptr, const QGLWidget* shareWidget = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
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virtual ~GLWidget();
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inline void setGraphicsWindow( GraphicsWindowQt* gw ) { _gw = gw; }
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inline GraphicsWindowQt* getGraphicsWindow() { return _gw; }
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inline const GraphicsWindowQt* getGraphicsWindow() const { return _gw; }
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protected:
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int getNumDeferredEvents()
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{
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QMutexLocker lock(&_deferredEventQueueMutex);
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return _deferredEventQueue.count();
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}
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void enqueueDeferredEvent(QEvent::Type eventType, QEvent::Type removeEventType = QEvent::None)
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{
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QMutexLocker lock(&_deferredEventQueueMutex);
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if (removeEventType != QEvent::None)
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{
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if (_deferredEventQueue.removeOne(removeEventType))
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_eventCompressor.remove(eventType);
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}
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if (_eventCompressor.find(eventType) == _eventCompressor.end())
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{
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_deferredEventQueue.enqueue(eventType);
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_eventCompressor.insert(eventType);
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}
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}
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void processDeferredEvents();
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friend class GraphicsWindowQt;
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GraphicsWindowQt* _gw;
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QMutex _deferredEventQueueMutex;
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QQueue<QEvent::Type> _deferredEventQueue;
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QSet<QEvent::Type> _eventCompressor;
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qreal _devicePixelRatio;
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void resizeEvent( QResizeEvent* event ) override;
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void moveEvent( QMoveEvent* event ) override;
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void glDraw() override;
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bool event( QEvent* event ) override;
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};
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class GraphicsWindowQt : public osgViewer::GraphicsWindow
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{
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public:
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GraphicsWindowQt( osg::GraphicsContext::Traits* traits, QWidget* parent = nullptr, const QGLWidget* shareWidget = nullptr, Qt::WindowFlags f = Qt::WindowFlags() );
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GraphicsWindowQt( GLWidget* widget );
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virtual ~GraphicsWindowQt();
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inline GLWidget* getGLWidget() { return _widget; }
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inline const GLWidget* getGLWidget() const { return _widget; }
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/// deprecated
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inline GLWidget* getGraphWidget() { return _widget; }
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/// deprecated
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inline const GLWidget* getGraphWidget() const { return _widget; }
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struct WindowData : public osg::Referenced
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{
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WindowData( GLWidget* widget = nullptr, QWidget* parent = nullptr ): _widget(widget), _parent(parent) {}
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GLWidget* _widget;
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QWidget* _parent;
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};
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bool init( QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f );
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static QGLFormat traits2qglFormat( const osg::GraphicsContext::Traits* traits );
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static void qglFormat2traits( const QGLFormat& format, osg::GraphicsContext::Traits* traits );
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static osg::GraphicsContext::Traits* createTraits( const QGLWidget* widget );
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bool setWindowRectangleImplementation( int x, int y, int width, int height ) override;
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void getWindowRectangle( int& x, int& y, int& width, int& height ) override;
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bool setWindowDecorationImplementation( bool windowDecoration ) override;
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bool getWindowDecoration() const override;
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void grabFocus() override;
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void grabFocusIfPointerInWindow( )override;
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void raiseWindow() override;
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void setWindowName( const std::string& name ) override;
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std::string getWindowName() override;
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void useCursor( bool cursorOn ) override;
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void setCursor( MouseCursor cursor ) override;
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bool valid() const override;
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bool realizeImplementation() override;
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bool isRealizedImplementation() const override;
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void closeImplementation() override;
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bool makeCurrentImplementation() override;
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bool releaseContextImplementation() override;
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void swapBuffersImplementation() override;
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void runOperations() override;
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void requestWarpPointer( float x, float y ) override;
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protected:
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friend class GLWidget;
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GLWidget* _widget;
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bool _ownsWidget;
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QCursor _currentCursor;
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bool _realized;
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};
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}
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#endif
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@ -1,615 +0,0 @@
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 2009 Wang Rui
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include "GraphicsWindowQt"
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#include <osg/DeleteHandler>
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#include <osgViewer/ViewerBase>
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#include <QInputEvent>
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#include <QPointer>
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#include <QWindow>
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using namespace osgQt;
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#define GETDEVICEPIXELRATIO() devicePixelRatio()
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GLWidget::GLWidget( QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f)
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: QGLWidget(parent, shareWidget, f), _gw( nullptr )
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{
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_devicePixelRatio = GETDEVICEPIXELRATIO();
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}
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GLWidget::GLWidget( QGLContext* context, QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f)
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: QGLWidget(context, parent, shareWidget, f), _gw( nullptr )
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{
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_devicePixelRatio = GETDEVICEPIXELRATIO();
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}
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GLWidget::GLWidget( const QGLFormat& format, QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f)
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: QGLWidget(format, parent, shareWidget, f), _gw( nullptr )
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{
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_devicePixelRatio = GETDEVICEPIXELRATIO();
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}
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GLWidget::~GLWidget()
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{
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// close GraphicsWindowQt and remove the reference to us
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if( _gw )
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{
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_gw->close();
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_gw->_widget = nullptr;
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_gw = nullptr;
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}
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}
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void GLWidget::processDeferredEvents()
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{
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QQueue<QEvent::Type> deferredEventQueueCopy;
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{
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QMutexLocker lock(&_deferredEventQueueMutex);
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deferredEventQueueCopy = _deferredEventQueue;
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_eventCompressor.clear();
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_deferredEventQueue.clear();
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}
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while (!deferredEventQueueCopy.isEmpty())
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{
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QEvent event(deferredEventQueueCopy.dequeue());
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QGLWidget::event(&event);
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}
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}
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bool GLWidget::event( QEvent* event )
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{
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// QEvent::Hide
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//
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// workaround "Qt-workaround" that does glFinish before hiding the widget
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// (the Qt workaround was seen at least in Qt 4.6.3 and 4.7.0)
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//
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// Qt makes the context current, performs glFinish, and releases the context.
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// This makes the problem in OSG multithreaded environment as the context
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// is active in another thread, thus it can not be made current for the purpose
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// of glFinish in this thread.
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// QEvent::ParentChange
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//
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// Reparenting GLWidget may create a new underlying window and a new GL context.
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// Qt will then call doneCurrent on the GL context about to be deleted. The thread
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// where old GL context was current has no longer current context to render to and
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// we cannot make new GL context current in this thread.
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// We workaround above problems by deferring execution of problematic event requests.
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// These events has to be enqueue and executed later in a main GUI thread (GUI operations
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// outside the main thread are not allowed) just before makeCurrent is called from the
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// right thread. The good place for doing that is right after swap in a swapBuffersImplementation.
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if (event->type() == QEvent::Hide)
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{
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// enqueue only the last of QEvent::Hide and QEvent::Show
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enqueueDeferredEvent(QEvent::Hide, QEvent::Show);
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return true;
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}
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else if (event->type() == QEvent::Show)
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{
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// enqueue only the last of QEvent::Show or QEvent::Hide
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enqueueDeferredEvent(QEvent::Show, QEvent::Hide);
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return true;
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}
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else if (event->type() == QEvent::ParentChange)
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{
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// enqueue only the last QEvent::ParentChange
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enqueueDeferredEvent(QEvent::ParentChange);
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return true;
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}
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else if (event->type() == QEvent::PlatformSurface && static_cast<QPlatformSurfaceEvent*>(event)->surfaceEventType() == QPlatformSurfaceEvent::SurfaceAboutToBeDestroyed)
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{
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if (_gw)
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_gw->close();
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}
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// perform regular event handling
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return QGLWidget::event( event );
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}
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void GLWidget::resizeEvent( QResizeEvent* event )
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{
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if (_gw == nullptr || !_gw->valid())
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return;
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const QSize& size = event->size();
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int scaled_width = static_cast<int>(size.width()*_devicePixelRatio);
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int scaled_height = static_cast<int>(size.height()*_devicePixelRatio);
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_gw->resized( x(), y(), scaled_width, scaled_height);
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_gw->getEventQueue()->windowResize( x(), y(), scaled_width, scaled_height );
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_gw->requestRedraw();
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}
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void GLWidget::moveEvent( QMoveEvent* event )
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{
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if (_gw == nullptr || !_gw->valid())
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return;
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const QPoint& pos = event->pos();
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int scaled_width = static_cast<int>(width()*_devicePixelRatio);
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int scaled_height = static_cast<int>(height()*_devicePixelRatio);
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_gw->resized( pos.x(), pos.y(), scaled_width, scaled_height );
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_gw->getEventQueue()->windowResize( pos.x(), pos.y(), scaled_width, scaled_height );
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}
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void GLWidget::glDraw()
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{
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_gw->requestRedraw();
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}
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GraphicsWindowQt::GraphicsWindowQt( osg::GraphicsContext::Traits* traits, QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f )
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: _realized(false)
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{
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_widget = nullptr;
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_traits = traits;
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init( parent, shareWidget, f );
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}
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GraphicsWindowQt::GraphicsWindowQt( GLWidget* widget )
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: _realized(false)
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{
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_widget = widget;
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_traits = _widget ? createTraits( _widget ) : new osg::GraphicsContext::Traits;
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init( nullptr, nullptr, Qt::WindowFlags() );
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}
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GraphicsWindowQt::~GraphicsWindowQt()
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{
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close();
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// remove reference from GLWidget
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if ( _widget )
|
||||
_widget->_gw = nullptr;
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::init( QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f )
|
||||
{
|
||||
// update _widget and parent by WindowData
|
||||
WindowData* windowData = _traits.get() ? dynamic_cast<WindowData*>(_traits->inheritedWindowData.get()) : nullptr;
|
||||
if ( !_widget )
|
||||
_widget = windowData ? windowData->_widget : nullptr;
|
||||
if ( !parent )
|
||||
parent = windowData ? windowData->_parent : nullptr;
|
||||
|
||||
// create widget if it does not exist
|
||||
_ownsWidget = _widget == nullptr;
|
||||
if ( !_widget )
|
||||
{
|
||||
// shareWidget
|
||||
if ( !shareWidget ) {
|
||||
GraphicsWindowQt* sharedContextQt = dynamic_cast<GraphicsWindowQt*>(_traits->sharedContext.get());
|
||||
if ( sharedContextQt )
|
||||
shareWidget = sharedContextQt->getGLWidget();
|
||||
}
|
||||
|
||||
// WindowFlags
|
||||
Qt::WindowFlags flags = f | Qt::Window | Qt::CustomizeWindowHint;
|
||||
if ( _traits->windowDecoration )
|
||||
flags |= Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint;
|
||||
|
||||
// create widget
|
||||
_widget = new GLWidget( traits2qglFormat( _traits.get() ), parent, shareWidget, flags );
|
||||
}
|
||||
|
||||
// set widget name and position
|
||||
// (do not set it when we inherited the widget)
|
||||
if ( _ownsWidget )
|
||||
{
|
||||
_widget->setWindowTitle( _traits->windowName.c_str() );
|
||||
_widget->move( _traits->x, _traits->y );
|
||||
if ( !_traits->supportsResize ) _widget->setFixedSize( _traits->width, _traits->height );
|
||||
else _widget->resize( _traits->width, _traits->height );
|
||||
}
|
||||
|
||||
// initialize widget properties
|
||||
_widget->setAutoBufferSwap( false );
|
||||
_widget->setMouseTracking( true );
|
||||
_widget->setGraphicsWindow( this );
|
||||
useCursor( _traits->useCursor );
|
||||
|
||||
// initialize State
|
||||
setState( new osg::State );
|
||||
getState()->setGraphicsContext(this);
|
||||
|
||||
// initialize contextID
|
||||
if ( _traits.valid() && _traits->sharedContext.valid() )
|
||||
{
|
||||
getState()->setContextID( _traits->sharedContext->getState()->getContextID() );
|
||||
incrementContextIDUsageCount( getState()->getContextID() );
|
||||
}
|
||||
else
|
||||
{
|
||||
getState()->setContextID( osg::GraphicsContext::createNewContextID() );
|
||||
}
|
||||
|
||||
// make sure the event queue has the correct window rectangle size and input range
|
||||
getEventQueue()->syncWindowRectangleWithGraphicsContext();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
QGLFormat GraphicsWindowQt::traits2qglFormat( const osg::GraphicsContext::Traits* traits )
|
||||
{
|
||||
QGLFormat format( QGLFormat::defaultFormat() );
|
||||
|
||||
format.setAlphaBufferSize( traits->alpha );
|
||||
format.setRedBufferSize( traits->red );
|
||||
format.setGreenBufferSize( traits->green );
|
||||
format.setBlueBufferSize( traits->blue );
|
||||
format.setDepthBufferSize( traits->depth );
|
||||
format.setStencilBufferSize( traits->stencil );
|
||||
format.setSampleBuffers( traits->sampleBuffers );
|
||||
format.setSamples( traits->samples );
|
||||
|
||||
format.setAlpha( traits->alpha>0 );
|
||||
format.setDepth( traits->depth>0 );
|
||||
format.setStencil( traits->stencil>0 );
|
||||
format.setDoubleBuffer( traits->doubleBuffer );
|
||||
format.setSwapInterval( traits->vsync ? 1 : 0 );
|
||||
format.setStereo( traits->quadBufferStereo ? 1 : 0 );
|
||||
|
||||
return format;
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::qglFormat2traits( const QGLFormat& format, osg::GraphicsContext::Traits* traits )
|
||||
{
|
||||
traits->red = format.redBufferSize();
|
||||
traits->green = format.greenBufferSize();
|
||||
traits->blue = format.blueBufferSize();
|
||||
traits->alpha = format.alpha() ? format.alphaBufferSize() : 0;
|
||||
traits->depth = format.depth() ? format.depthBufferSize() : 0;
|
||||
traits->stencil = format.stencil() ? format.stencilBufferSize() : 0;
|
||||
|
||||
traits->sampleBuffers = format.sampleBuffers() ? 1 : 0;
|
||||
traits->samples = format.samples();
|
||||
|
||||
traits->quadBufferStereo = format.stereo();
|
||||
traits->doubleBuffer = format.doubleBuffer();
|
||||
|
||||
traits->vsync = format.swapInterval() >= 1;
|
||||
}
|
||||
|
||||
osg::GraphicsContext::Traits* GraphicsWindowQt::createTraits( const QGLWidget* widget )
|
||||
{
|
||||
osg::GraphicsContext::Traits *traits = new osg::GraphicsContext::Traits;
|
||||
|
||||
qglFormat2traits( widget->format(), traits );
|
||||
|
||||
QRect r = widget->geometry();
|
||||
traits->x = r.x();
|
||||
traits->y = r.y();
|
||||
traits->width = r.width();
|
||||
traits->height = r.height();
|
||||
|
||||
traits->windowName = widget->windowTitle().toLocal8Bit().data();
|
||||
Qt::WindowFlags f = widget->windowFlags();
|
||||
traits->windowDecoration = ( f & Qt::WindowTitleHint ) &&
|
||||
( f & Qt::WindowMinMaxButtonsHint ) &&
|
||||
( f & Qt::WindowSystemMenuHint );
|
||||
QSizePolicy sp = widget->sizePolicy();
|
||||
traits->supportsResize = sp.horizontalPolicy() != QSizePolicy::Fixed ||
|
||||
sp.verticalPolicy() != QSizePolicy::Fixed;
|
||||
|
||||
return traits;
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::setWindowRectangleImplementation( int x, int y, int width, int height )
|
||||
{
|
||||
if ( _widget == nullptr )
|
||||
return false;
|
||||
|
||||
_widget->setGeometry( x, y, width, height );
|
||||
return true;
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::getWindowRectangle( int& x, int& y, int& width, int& height )
|
||||
{
|
||||
if ( _widget )
|
||||
{
|
||||
const QRect& geom = _widget->geometry();
|
||||
x = geom.x();
|
||||
y = geom.y();
|
||||
width = geom.width();
|
||||
height = geom.height();
|
||||
}
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::setWindowDecorationImplementation( bool windowDecoration )
|
||||
{
|
||||
Qt::WindowFlags flags = Qt::Window|Qt::CustomizeWindowHint;//|Qt::WindowStaysOnTopHint;
|
||||
if ( windowDecoration )
|
||||
flags |= Qt::WindowTitleHint|Qt::WindowMinMaxButtonsHint|Qt::WindowSystemMenuHint;
|
||||
_traits->windowDecoration = windowDecoration;
|
||||
|
||||
if ( _widget )
|
||||
{
|
||||
_widget->setWindowFlags( flags );
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::getWindowDecoration() const
|
||||
{
|
||||
return _traits->windowDecoration;
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::grabFocus()
|
||||
{
|
||||
if ( _widget )
|
||||
_widget->setFocus( Qt::ActiveWindowFocusReason );
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::grabFocusIfPointerInWindow()
|
||||
{
|
||||
if ( _widget->underMouse() )
|
||||
_widget->setFocus( Qt::ActiveWindowFocusReason );
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::raiseWindow()
|
||||
{
|
||||
if ( _widget )
|
||||
_widget->raise();
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::setWindowName( const std::string& name )
|
||||
{
|
||||
if ( _widget )
|
||||
_widget->setWindowTitle( name.c_str() );
|
||||
}
|
||||
|
||||
std::string GraphicsWindowQt::getWindowName()
|
||||
{
|
||||
return _widget ? _widget->windowTitle().toStdString() : "";
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::useCursor( bool cursorOn )
|
||||
{
|
||||
if ( _widget )
|
||||
{
|
||||
_traits->useCursor = cursorOn;
|
||||
if ( !cursorOn ) _widget->setCursor( Qt::BlankCursor );
|
||||
else _widget->setCursor( _currentCursor );
|
||||
}
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::setCursor( MouseCursor cursor )
|
||||
{
|
||||
if ( cursor==InheritCursor && _widget )
|
||||
{
|
||||
_widget->unsetCursor();
|
||||
}
|
||||
|
||||
switch ( cursor )
|
||||
{
|
||||
case NoCursor: _currentCursor = Qt::BlankCursor; break;
|
||||
case RightArrowCursor: case LeftArrowCursor: _currentCursor = Qt::ArrowCursor; break;
|
||||
case InfoCursor: _currentCursor = Qt::SizeAllCursor; break;
|
||||
case DestroyCursor: _currentCursor = Qt::ForbiddenCursor; break;
|
||||
case HelpCursor: _currentCursor = Qt::WhatsThisCursor; break;
|
||||
case CycleCursor: _currentCursor = Qt::ForbiddenCursor; break;
|
||||
case SprayCursor: _currentCursor = Qt::SizeAllCursor; break;
|
||||
case WaitCursor: _currentCursor = Qt::WaitCursor; break;
|
||||
case TextCursor: _currentCursor = Qt::IBeamCursor; break;
|
||||
case CrosshairCursor: _currentCursor = Qt::CrossCursor; break;
|
||||
case HandCursor: _currentCursor = Qt::OpenHandCursor; break;
|
||||
case UpDownCursor: _currentCursor = Qt::SizeVerCursor; break;
|
||||
case LeftRightCursor: _currentCursor = Qt::SizeHorCursor; break;
|
||||
case TopSideCursor: case BottomSideCursor: _currentCursor = Qt::UpArrowCursor; break;
|
||||
case LeftSideCursor: case RightSideCursor: _currentCursor = Qt::SizeHorCursor; break;
|
||||
case TopLeftCorner: _currentCursor = Qt::SizeBDiagCursor; break;
|
||||
case TopRightCorner: _currentCursor = Qt::SizeFDiagCursor; break;
|
||||
case BottomRightCorner: _currentCursor = Qt::SizeBDiagCursor; break;
|
||||
case BottomLeftCorner: _currentCursor = Qt::SizeFDiagCursor; break;
|
||||
default: break;
|
||||
};
|
||||
if ( _widget ) _widget->setCursor( _currentCursor );
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::valid() const
|
||||
{
|
||||
return _widget && _widget->isValid();
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::realizeImplementation()
|
||||
{
|
||||
// save the current context
|
||||
// note: this will save only Qt-based contexts
|
||||
const QGLContext *savedContext = QGLContext::currentContext();
|
||||
|
||||
// initialize GL context for the widget
|
||||
if ( !valid() )
|
||||
_widget->glInit();
|
||||
|
||||
// make current
|
||||
_realized = true;
|
||||
bool result = makeCurrent();
|
||||
_realized = false;
|
||||
|
||||
// fail if we do not have current context
|
||||
if ( !result )
|
||||
{
|
||||
if ( savedContext )
|
||||
const_cast< QGLContext* >( savedContext )->makeCurrent();
|
||||
|
||||
OSG_WARN << "Window realize: Can make context current." << std::endl;
|
||||
return false;
|
||||
}
|
||||
|
||||
_realized = true;
|
||||
|
||||
// make sure the event queue has the correct window rectangle size and input range
|
||||
getEventQueue()->syncWindowRectangleWithGraphicsContext();
|
||||
|
||||
// make this window's context not current
|
||||
// note: this must be done as we will probably make the context current from another thread
|
||||
// and it is not allowed to have one context current in two threads
|
||||
if( !releaseContext() )
|
||||
OSG_WARN << "Window realize: Can not release context." << std::endl;
|
||||
|
||||
// restore previous context
|
||||
if ( savedContext )
|
||||
const_cast< QGLContext* >( savedContext )->makeCurrent();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::isRealizedImplementation() const
|
||||
{
|
||||
return _realized;
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::closeImplementation()
|
||||
{
|
||||
if ( _widget )
|
||||
_widget->close();
|
||||
_realized = false;
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::runOperations()
|
||||
{
|
||||
// While in graphics thread this is last chance to do something useful before
|
||||
// graphics thread will execute its operations.
|
||||
if (_widget->getNumDeferredEvents() > 0)
|
||||
_widget->processDeferredEvents();
|
||||
|
||||
if (QGLContext::currentContext() != _widget->context())
|
||||
_widget->makeCurrent();
|
||||
|
||||
GraphicsWindow::runOperations();
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::makeCurrentImplementation()
|
||||
{
|
||||
if (_widget->getNumDeferredEvents() > 0)
|
||||
_widget->processDeferredEvents();
|
||||
|
||||
_widget->makeCurrent();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GraphicsWindowQt::releaseContextImplementation()
|
||||
{
|
||||
_widget->doneCurrent();
|
||||
return true;
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::swapBuffersImplementation()
|
||||
{
|
||||
// QOpenGLContext complains if we swap on an non-exposed QWindow
|
||||
if (!_widget || !_widget->windowHandle()->isExposed())
|
||||
return;
|
||||
|
||||
// FIXME: the processDeferredEvents should really be executed in a GUI (main) thread context but
|
||||
// I couln't find any reliable way to do this. For now, lets hope non of *GUI thread only operations* will
|
||||
// be executed in a QGLWidget::event handler. On the other hand, calling GUI only operations in the
|
||||
// QGLWidget event handler is an indication of a Qt bug.
|
||||
if (_widget->getNumDeferredEvents() > 0)
|
||||
_widget->processDeferredEvents();
|
||||
|
||||
// We need to call makeCurrent here to restore our previously current context
|
||||
// which may be changed by the processDeferredEvents function.
|
||||
_widget->makeCurrent();
|
||||
_widget->swapBuffers();
|
||||
}
|
||||
|
||||
void GraphicsWindowQt::requestWarpPointer( float x, float y )
|
||||
{
|
||||
if ( _widget )
|
||||
QCursor::setPos( _widget->mapToGlobal(QPoint((int)x,(int)y)) );
|
||||
}
|
||||
|
||||
|
||||
class QtWindowingSystem : public osg::GraphicsContext::WindowingSystemInterface
|
||||
{
|
||||
public:
|
||||
|
||||
QtWindowingSystem()
|
||||
{
|
||||
OSG_INFO << "QtWindowingSystemInterface()" << std::endl;
|
||||
}
|
||||
|
||||
~QtWindowingSystem()
|
||||
{
|
||||
if (osg::Referenced::getDeleteHandler())
|
||||
{
|
||||
osg::Referenced::getDeleteHandler()->setNumFramesToRetainObjects(0);
|
||||
osg::Referenced::getDeleteHandler()->flushAll();
|
||||
}
|
||||
}
|
||||
|
||||
// Access the Qt windowing system through this singleton class.
|
||||
static QtWindowingSystem* getInterface()
|
||||
{
|
||||
static QtWindowingSystem* qtInterface = new QtWindowingSystem;
|
||||
return qtInterface;
|
||||
}
|
||||
|
||||
// Return the number of screens present in the system
|
||||
unsigned int getNumScreens( const osg::GraphicsContext::ScreenIdentifier& /*si*/ ) override
|
||||
{
|
||||
OSG_WARN << "osgQt: getNumScreens() not implemented yet." << std::endl;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Return the resolution of specified screen
|
||||
// (0,0) is returned if screen is unknown
|
||||
void getScreenSettings( const osg::GraphicsContext::ScreenIdentifier& /*si*/, osg::GraphicsContext::ScreenSettings & /*resolution*/ ) override
|
||||
{
|
||||
OSG_WARN << "osgQt: getScreenSettings() not implemented yet." << std::endl;
|
||||
}
|
||||
|
||||
// Set the resolution for given screen
|
||||
bool setScreenSettings( const osg::GraphicsContext::ScreenIdentifier& /*si*/, const osg::GraphicsContext::ScreenSettings & /*resolution*/ ) override
|
||||
{
|
||||
OSG_WARN << "osgQt: setScreenSettings() not implemented yet." << std::endl;
|
||||
return false;
|
||||
}
|
||||
|
||||
// Enumerates available resolutions
|
||||
void enumerateScreenSettings( const osg::GraphicsContext::ScreenIdentifier& /*screenIdentifier*/, osg::GraphicsContext::ScreenSettingsList & /*resolution*/ ) override
|
||||
{
|
||||
OSG_WARN << "osgQt: enumerateScreenSettings() not implemented yet." << std::endl;
|
||||
}
|
||||
|
||||
// Create a graphics context with given traits
|
||||
osg::GraphicsContext* createGraphicsContext( osg::GraphicsContext::Traits* traits ) override
|
||||
{
|
||||
if (traits->pbuffer)
|
||||
{
|
||||
OSG_WARN << "osgQt: createGraphicsContext - pbuffer not implemented yet." << std::endl;
|
||||
return nullptr;
|
||||
}
|
||||
else
|
||||
{
|
||||
osg::ref_ptr< GraphicsWindowQt > window = new GraphicsWindowQt( traits );
|
||||
if (window->valid()) return window.release();
|
||||
else return nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
// No implementation for these
|
||||
QtWindowingSystem( const QtWindowingSystem& );
|
||||
QtWindowingSystem& operator=( const QtWindowingSystem& );
|
||||
};
|
||||
|
||||
@ -0,0 +1,98 @@
|
||||
#include "CompositeOsgRenderer.hpp"
|
||||
#include "osgQOpenGLWidget.hpp"
|
||||
|
||||
#include <mutex>
|
||||
#include <osgViewer/View>
|
||||
|
||||
#include <QApplication>
|
||||
#include <QScreen>
|
||||
#include <QWindow>
|
||||
|
||||
osgQOpenGLWidget::osgQOpenGLWidget(QWidget* parent)
|
||||
: QOpenGLWidget(parent)
|
||||
{
|
||||
m_renderer = new CompositeOsgRenderer(this);
|
||||
setMouseTracking(true);
|
||||
}
|
||||
|
||||
osgQOpenGLWidget::osgQOpenGLWidget(osg::ArgumentParser* arguments,
|
||||
QWidget* parent) :
|
||||
QOpenGLWidget(parent),
|
||||
_arguments(arguments)
|
||||
{
|
||||
m_renderer = new CompositeOsgRenderer(this);
|
||||
}
|
||||
|
||||
osgQOpenGLWidget::~osgQOpenGLWidget()
|
||||
{
|
||||
if (m_renderer) delete m_renderer;
|
||||
}
|
||||
|
||||
osgViewer::View* osgQOpenGLWidget::getOsgView(unsigned i)
|
||||
{
|
||||
if (m_renderer) return m_renderer->getView(i);
|
||||
else return nullptr;
|
||||
}
|
||||
|
||||
std::mutex* osgQOpenGLWidget::mutex()
|
||||
{
|
||||
return &_osgMutex;
|
||||
}
|
||||
|
||||
void osgQOpenGLWidget::initializeGL()
|
||||
{
|
||||
// Initializes OpenGL function resolution for the current context.
|
||||
initializeOpenGLFunctions();
|
||||
createRenderer();
|
||||
emit initialized();
|
||||
}
|
||||
|
||||
void osgQOpenGLWidget::resizeGL(int w, int h)
|
||||
{
|
||||
Q_ASSERT(m_renderer);
|
||||
QScreen* screen = windowHandle()
|
||||
&& windowHandle()->screen() ? windowHandle()->screen() :
|
||||
qApp->screens().front();
|
||||
m_renderer->resize(w * screen->devicePixelRatio(), h * screen->devicePixelRatio());
|
||||
}
|
||||
|
||||
void osgQOpenGLWidget::paintGL()
|
||||
{
|
||||
std::scoped_lock locker(_osgMutex);
|
||||
if (_isFirstFrame)
|
||||
{
|
||||
_isFirstFrame = false;
|
||||
for (unsigned int i = 0; i < m_renderer->getNumViews(); ++i)
|
||||
{
|
||||
m_renderer->getView(i)->getCamera()->getGraphicsContext()->setDefaultFboId(defaultFramebufferObject());
|
||||
}
|
||||
}
|
||||
m_renderer->frame();
|
||||
}
|
||||
|
||||
void osgQOpenGLWidget::setDefaultDisplaySettings()
|
||||
{
|
||||
osg::DisplaySettings* ds = osg::DisplaySettings::instance().get();
|
||||
ds->setNvOptimusEnablement(1);
|
||||
ds->setStereo(false);
|
||||
}
|
||||
|
||||
CompositeOsgRenderer* osgQOpenGLWidget::getCompositeViewer()
|
||||
{
|
||||
if (m_renderer) return m_renderer;
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
void osgQOpenGLWidget::setGraphicsWindowEmbedded(osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> osgWinEmb)
|
||||
{
|
||||
if (m_renderer) m_renderer->setGraphicsWindowEmbedded(osgWinEmb);
|
||||
}
|
||||
|
||||
void osgQOpenGLWidget::createRenderer()
|
||||
{
|
||||
// call this before creating a View...
|
||||
setDefaultDisplaySettings();
|
||||
if (!m_renderer) m_renderer = new CompositeOsgRenderer(this);
|
||||
|
||||
m_renderer->setupOSG();
|
||||
}
|
||||
@ -0,0 +1,70 @@
|
||||
#ifndef OSGQOPENGLWIDGET_H
|
||||
#define OSGQOPENGLWIDGET_H
|
||||
|
||||
#include <mutex>
|
||||
|
||||
#ifdef WIN32
|
||||
#include <osg/GL>
|
||||
#endif
|
||||
|
||||
#include <osg/ArgumentParser>
|
||||
|
||||
#include <QOpenGLWidget>
|
||||
#include <QOpenGLFunctions>
|
||||
#include <QReadWriteLock>
|
||||
|
||||
class CompositeOsgRenderer;
|
||||
|
||||
namespace osgViewer
|
||||
{
|
||||
class View;
|
||||
class GraphicsWindowEmbedded;
|
||||
}
|
||||
|
||||
class osgQOpenGLWidget : public QOpenGLWidget,
|
||||
protected QOpenGLFunctions
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
protected:
|
||||
CompositeOsgRenderer* m_renderer {nullptr};
|
||||
std::mutex _osgMutex;
|
||||
osg::ArgumentParser* _arguments {nullptr};
|
||||
bool _isFirstFrame {true};
|
||||
|
||||
friend class CompositeOsgRenderer;
|
||||
|
||||
public:
|
||||
osgQOpenGLWidget(QWidget* parent = nullptr);
|
||||
osgQOpenGLWidget(osg::ArgumentParser* arguments, QWidget* parent = nullptr);
|
||||
virtual ~osgQOpenGLWidget();
|
||||
|
||||
/** Get osgViewer View */
|
||||
virtual osgViewer::View* getOsgView(unsigned i);
|
||||
|
||||
//! get mutex
|
||||
virtual std::mutex* mutex();
|
||||
|
||||
CompositeOsgRenderer* getCompositeViewer();
|
||||
|
||||
void setGraphicsWindowEmbedded(osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> osgWinEmb);
|
||||
|
||||
signals:
|
||||
void initialized();
|
||||
|
||||
protected:
|
||||
//! call createRender. If overloaded, this method must send initialized signal at end
|
||||
void initializeGL() override;
|
||||
|
||||
void resizeGL(int w, int h) override;
|
||||
|
||||
//! lock scene graph and call osgViewer::frame()
|
||||
void paintGL() override;
|
||||
|
||||
//! called before creating renderer
|
||||
virtual void setDefaultDisplaySettings();
|
||||
|
||||
void createRenderer();
|
||||
};
|
||||
|
||||
#endif // OSGQOPENGLWIDGET_H
|
||||
Loading…
Reference in New Issue