window_multithreaded.h Example File

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#ifndef WINDOW_MULTITHREADED_H #define WINDOW_MULTITHREADED_H #include <QWindow> #include <QMatrix4x4> #include <QThread> #include <QWaitCondition> #include <QMutex> QT_FORWARD_DECLARE_CLASS(QOpenGLContext) QT_FORWARD_DECLARE_CLASS(QOpenGLFramebufferObject) QT_FORWARD_DECLARE_CLASS(QOffscreenSurface) QT_FORWARD_DECLARE_CLASS(QQuickRenderControl) QT_FORWARD_DECLARE_CLASS(QQuickWindow) QT_FORWARD_DECLARE_CLASS(QQmlEngine) QT_FORWARD_DECLARE_CLASS(QQmlComponent) QT_FORWARD_DECLARE_CLASS(QQuickItem) class CubeRenderer; class QuickRenderer : public QObject { Q_OBJECT public: QuickRenderer(); void requestInit(); void requestRender(); void requestResize(); void requestStop(); QWaitCondition *cond() { return &m_cond; } QMutex *mutex() { return &m_mutex; } void setContext(QOpenGLContext *ctx) { m_context = ctx; } void setSurface(QOffscreenSurface *s) { m_surface = s; } void setWindow(QWindow *w) { m_window = w; } void setQuickWindow(QQuickWindow *w) { m_quickWindow = w; } void setRenderControl(QQuickRenderControl *r) { m_renderControl = r; } void aboutToQuit(); private: bool event(QEvent *e) Q_DECL_OVERRIDE; void init(); void cleanup(); void ensureFbo(); void render(QMutexLocker *lock); QWaitCondition m_cond; QMutex m_mutex; QOpenGLContext *m_context; QOffscreenSurface *m_surface; QOpenGLFramebufferObject *m_fbo; QWindow *m_window; QQuickWindow *m_quickWindow; QQuickRenderControl *m_renderControl; CubeRenderer *m_cubeRenderer; QMutex m_quitMutex; bool m_quit; }; class WindowMultiThreaded : public QWindow { Q_OBJECT public: WindowMultiThreaded(); ~WindowMultiThreaded(); protected: void exposeEvent(QExposeEvent *e) Q_DECL_OVERRIDE; void resizeEvent(QResizeEvent *e) Q_DECL_OVERRIDE; void mousePressEvent(QMouseEvent *e) Q_DECL_OVERRIDE; void mouseReleaseEvent(QMouseEvent *e) Q_DECL_OVERRIDE; bool event(QEvent *e) Q_DECL_OVERRIDE; private slots: void run(); void requestUpdate(); void polishSyncAndRender(); private: void startQuick(const QString &filename); void updateSizes(); QuickRenderer *m_quickRenderer; QThread *m_quickRendererThread; QOpenGLContext *m_context; QOffscreenSurface *m_offscreenSurface; QQuickRenderControl *m_renderControl; QQuickWindow *m_quickWindow; QQmlEngine *m_qmlEngine; QQmlComponent *m_qmlComponent; QQuickItem *m_rootItem; bool m_quickInitialized; bool m_psrRequested; }; #endif

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