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22 ** GNU General Public License Usage
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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>
53 #include <QtQuick/qsgnode.h>
59 QT_MODULE(Declarative)
61 class QSGContextPrivate;
62 class QSGRectangleNode;
66 class QSGDistanceFieldGlyphCache;
70 class QSGMaterialShader;
74 class QOpenGLFramebufferObject;
76 class QDeclarativeTextureFactory;
78 class Q_QUICK_EXPORT QSGContext : public QObject
81 Q_DECLARE_PRIVATE(QSGContext)
84 explicit QSGContext(QObject *parent = 0);
87 virtual void initialize(QOpenGLContext *context);
88 virtual void invalidate();
90 QOpenGLContext *glContext() const;
94 QSGMaterialShader *prepareMaterial(QSGMaterial *material);
96 virtual void renderNextFrame(QSGRenderer *renderer, QOpenGLFramebufferObject *fbo = 0);
98 virtual QSGDistanceFieldGlyphCache *createDistanceFieldGlyphCache(const QRawFont &font);
100 virtual QSGRectangleNode *createRectangleNode();
101 virtual QSGImageNode *createImageNode();
102 virtual QSGGlyphNode *createGlyphNode();
103 virtual QSGRenderer *createRenderer();
105 virtual bool canDecodeImageToTexture() const;
106 virtual QSGTexture *decodeImageToTexture(QIODevice *dev,
108 const QSize &requestSize);
110 virtual QSGTexture *createTexture(const QImage &image = QImage()) const;
111 virtual QSize minimumFBOSize() const;
113 virtual QSurfaceFormat defaultSurfaceFormat() const;
115 QSGTexture *textureForFactory(QDeclarativeTextureFactory *factory);
117 static QSGContext *createDefaultContext();
119 void setFlashModeEnabled(bool enabled);
120 bool isFlashModeEnabled() const;
122 void setRenderAlpha(qreal renderAlpha);
123 qreal renderAlpha() const;
125 void setDistanceFieldEnabled(bool enabled);
126 bool isDistanceFieldEnabled() const;
128 virtual QAnimationDriver *createAnimationDriver(QObject *parent);
132 void textureFactoryDestroyed(QObject *o);
143 #endif // QSGCONTEXT_H