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45 #include <QtCore/QObject>
46 #include <QtCore/qabstractanimation.h>
48 #include <QtGui/QImage>
49 #include <QtGui/QSurfaceFormat>
51 #include <private/qrawfont_p.h>
59 QT_MODULE(Declarative)
61 class QSGContextPrivate;
62 class QSGRectangleNode;
66 class QSGDistanceFieldGlyphCache;
70 class QSGMaterialShader;
74 class QOpenGLFramebufferObject;
76 class Q_DECLARATIVE_EXPORT QSGContext : public QObject
79 Q_DECLARE_PRIVATE(QSGContext)
82 explicit QSGContext(QObject *parent = 0);
85 virtual void initialize(QOpenGLContext *context);
87 QSGRenderer *renderer() const;
89 void setRootNode(QSGRootNode *node);
90 QSGRootNode *rootNode() const;
92 QSGEngine *engine() const;
93 QOpenGLContext *glContext() const;
97 QSGMaterialShader *prepareMaterial(QSGMaterial *material);
99 virtual void renderNextFrame(QOpenGLFramebufferObject *fbo = 0);
101 virtual QSGDistanceFieldGlyphCache *createDistanceFieldGlyphCache(const QRawFont &font);
103 virtual QSGRectangleNode *createRectangleNode();
104 virtual QSGImageNode *createImageNode();
105 virtual QSGGlyphNode *createGlyphNode();
106 virtual QSGRenderer *createRenderer();
108 virtual bool canDecodeImageToTexture() const;
109 virtual QSGTexture *decodeImageToTexture(QIODevice *dev,
111 const QSize &requestSize);
112 virtual QSGTexture *createTexture(const QImage &image = QImage()) const;
113 virtual QSize minimumFBOSize() const;
115 virtual QSurfaceFormat defaultSurfaceFormat() const;
117 static QSGContext *createDefaultContext();
119 void scheduleTextureForCleanup(QSGTexture *texture);
120 void cleanupTextures();
122 void setFlashModeEnabled(bool enabled);
123 bool isFlashModeEnabled() const;
125 void setRenderAlpha(qreal renderAlpha);
126 qreal renderAlpha() const;
128 void setDistanceFieldEnabled(bool enabled);
129 bool isDistanceFieldEnabled() const;
131 virtual QAnimationDriver *createAnimationDriver(QObject *parent);
141 #endif // QSGCONTEXT_H