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45 #include <QtCore/QObject>
46 #include <QtCore/qabstractanimation.h>
48 #include <QtGui/QImage>
49 #include <QtGui/QSurfaceFormat>
57 QT_MODULE(Declarative)
59 class QSGContextPrivate;
60 class QSGRectangleNode;
67 class QSGMaterialShader;
71 class QOpenGLFramebufferObject;
73 class Q_DECLARATIVE_EXPORT QSGContext : public QObject
76 Q_DECLARE_PRIVATE(QSGContext)
79 explicit QSGContext(QObject *parent = 0);
82 virtual void initialize(QOpenGLContext *context);
84 QSGRenderer *renderer() const;
86 void setRootNode(QSGRootNode *node);
87 QSGRootNode *rootNode() const;
89 QSGEngine *engine() const;
90 QOpenGLContext *glContext() const;
94 QSGMaterialShader *prepareMaterial(QSGMaterial *material);
96 virtual void renderNextFrame(QOpenGLFramebufferObject *fbo = 0);
98 virtual QSGRectangleNode *createRectangleNode();
99 virtual QSGImageNode *createImageNode();
100 virtual QSGGlyphNode *createGlyphNode();
101 virtual QSGRenderer *createRenderer();
103 virtual bool canDecodeImageToTexture() const;
104 virtual QSGTexture *decodeImageToTexture(QIODevice *dev,
106 const QSize &requestSize);
107 virtual QSGTexture *createTexture(const QImage &image = QImage()) const;
108 virtual QSize minimumFBOSize() const;
110 virtual QSurfaceFormat defaultSurfaceFormat() const;
112 static QSGContext *createDefaultContext();
114 void scheduleTextureForCleanup(QSGTexture *texture);
115 void cleanupTextures();
117 void setFlashModeEnabled(bool enabled);
118 bool isFlashModeEnabled() const;
120 void setRenderAlpha(qreal renderAlpha);
121 qreal renderAlpha() const;
123 void setDistanceFieldEnabled(bool enabled);
124 bool isDistanceFieldEnabled() const;
126 virtual QAnimationDriver *createAnimationDriver(QObject *parent);
136 #endif // QSGCONTEXT_H