| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtQuick module of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #ifndef QSGRENDERLOOP_P_H |
| #define QSGRENDERLOOP_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtGui/QImage> |
| #include <QtGui/QSurface> |
| #include <private/qtquickglobal_p.h> |
| #include <QtCore/QSet> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QQuickWindow; |
| class QSGContext; |
| class QSGRenderContext; |
| class QAnimationDriver; |
| class QRunnable; |
| |
| class Q_QUICK_PRIVATE_EXPORT QSGRenderLoop : public QObject |
| { |
| Q_OBJECT |
| |
| public: |
| enum RenderLoopFlags { |
| SupportsGrabWithoutExpose = 0x01 |
| }; |
| |
| virtual ~QSGRenderLoop(); |
| |
| virtual void show(QQuickWindow *window) = 0; |
| virtual void hide(QQuickWindow *window) = 0; |
| virtual void resize(QQuickWindow *) {}; |
| |
| virtual void windowDestroyed(QQuickWindow *window) = 0; |
| |
| virtual void exposureChanged(QQuickWindow *window) = 0; |
| virtual QImage grab(QQuickWindow *window) = 0; |
| |
| virtual void update(QQuickWindow *window) = 0; |
| virtual void maybeUpdate(QQuickWindow *window) = 0; |
| virtual void handleUpdateRequest(QQuickWindow *) { } |
| |
| virtual QAnimationDriver *animationDriver() const = 0; |
| |
| virtual QSGContext *sceneGraphContext() const = 0; |
| virtual QSGRenderContext *createRenderContext(QSGContext *) const = 0; |
| |
| virtual void releaseResources(QQuickWindow *window) = 0; |
| virtual void postJob(QQuickWindow *window, QRunnable *job); |
| |
| void addWindow(QQuickWindow *win) { m_windows.insert(win); } |
| void removeWindow(QQuickWindow *win) { m_windows.remove(win); } |
| QSet<QQuickWindow *> windows() const { return m_windows; } |
| |
| virtual QSurface::SurfaceType windowSurfaceType() const; |
| |
| // ### make this less of a singleton |
| static QSGRenderLoop *instance(); |
| static void setInstance(QSGRenderLoop *instance); |
| |
| virtual bool interleaveIncubation() const { return false; } |
| |
| virtual int flags() const { return 0; } |
| |
| static void cleanup(); |
| |
| void handleContextCreationFailure(QQuickWindow *window); |
| |
| Q_SIGNALS: |
| void timeToIncubate(); |
| |
| private: |
| static QSGRenderLoop *s_instance; |
| |
| QSet<QQuickWindow *> m_windows; |
| }; |
| |
| enum QSGRenderLoopType |
| { |
| BasicRenderLoop, |
| ThreadedRenderLoop, |
| WindowsRenderLoop |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QSGRENDERLOOP_P_H |