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diff --git a/src/quick/items/context2d/qquickcontext2dtexture_p.h b/src/quick/items/context2d/qquickcontext2dtexture_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKCONTEXT2DTEXTURE_P_H
+#define QQUICKCONTEXT2DTEXTURE_P_H
+
+#include <QtQuick/qsgtexture.h>
+#include "qquickcanvasitem_p.h"
+#include "qquickcontext2d_p.h"
+
+#include <QOpenGLContext>
+#include <QOpenGLFramebufferObject>
+
+#include <QtCore/QMutex>
+#include <QtCore/QWaitCondition>
+#include <QtCore/QThread>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QQuickContext2DTile;
+class QQuickContext2DCommandBuffer;
+
+class QQuickContext2DTexture : public QSGDynamicTexture
+{
+    Q_OBJECT
+public:
+    QQuickContext2DTexture();
+    ~QQuickContext2DTexture();
+
+    virtual bool hasAlphaChannel() const {return true;}
+    virtual bool hasMipmaps() const {return false;}
+    virtual QSize textureSize() const;
+    virtual void lock() {}
+    virtual void unlock() {}
+    virtual void wait() {}
+    virtual void wake() {}
+    bool threadRendering() const {return m_threadRendering;}
+    virtual bool supportThreadRendering() const = 0;
+    virtual bool supportDirectRendering() const = 0;
+    virtual QQuickCanvasItem::RenderTarget renderTarget() const = 0;
+    virtual QImage toImage(const QRectF& region = QRectF()) = 0;
+    static QRect tiledRect(const QRectF& window, const QSize& tileSize);
+
+    virtual bool setCanvasSize(const QSize &size);
+    virtual bool setTileSize(const QSize &size);
+    virtual bool setCanvasWindow(const QRect& canvasWindow);
+    void setSmooth(bool smooth);
+    bool setDirtyRect(const QRect &dirtyRect);
+    virtual void canvasChanged(const QSize& canvasSize, const QSize& tileSize, const QRect& canvasWindow, const QRect& dirtyRect, bool smooth);
+    bool canvasDestroyed();
+Q_SIGNALS:
+    void textureChanged();
+
+public Q_SLOTS:
+    void markDirtyTexture();
+    void setItem(QQuickCanvasItem* item);
+    void paint();
+
+protected:
+    void paintWithoutTiles();
+    virtual QPaintDevice* beginPainting() {m_painting = true; return 0; }
+    virtual void endPainting() {m_painting = false;}
+    virtual QQuickContext2DTile* createTile() const = 0;
+    virtual void compositeTile(QQuickContext2DTile* tile) = 0;
+
+    void clearTiles();
+    QRect createTiles(const QRect& window);
+
+    QList<QQuickContext2DTile*> m_tiles;
+    QQuickContext2D* m_context;
+
+    QQuickContext2D::State m_state;
+
+    QQuickCanvasItem* m_item;
+    QSize m_canvasSize;
+    QSize m_tileSize;
+    QRect m_canvasWindow;
+
+    uint m_dirtyCanvas : 1;
+    uint m_dirtyTexture : 1;
+    uint m_threadRendering : 1;
+    uint m_smooth : 1;
+    uint m_tiledCanvas : 1;
+    uint m_doGrabImage : 1;
+    uint m_painting : 1;
+};
+
+class QQuickContext2DFBOTexture : public QQuickContext2DTexture
+{
+    Q_OBJECT
+
+public:
+    QQuickContext2DFBOTexture();
+    ~QQuickContext2DFBOTexture();
+    virtual int textureId() const;
+    virtual bool updateTexture();
+    virtual QQuickContext2DTile* createTile() const;
+    virtual QImage toImage(const QRectF& region = QRectF());
+    virtual QPaintDevice* beginPainting();
+    virtual void endPainting();
+    QRectF textureSubRect() const;
+    virtual bool supportThreadRendering() const {return false;}
+    virtual bool supportDirectRendering() const {return false;}
+    virtual QQuickCanvasItem::RenderTarget renderTarget() const;
+    virtual void compositeTile(QQuickContext2DTile* tile);
+    virtual void bind();
+    virtual bool setCanvasSize(const QSize &size);
+    virtual bool setTileSize(const QSize &size);
+    virtual bool setCanvasWindow(const QRect& canvasWindow);
+private Q_SLOTS:
+    void grabImage();
+
+private:
+    bool doMultisampling() const;
+    QImage m_grabedImage;
+    QOpenGLFramebufferObject *m_fbo;
+    QOpenGLFramebufferObject *m_multisampledFbo;
+    QMutex m_mutex;
+    QWaitCondition m_condition;
+    QSize m_fboSize;
+    QPaintDevice *m_paint_device;
+};
+
+class QSGPlainTexture;
+class QQuickContext2DImageTexture : public QQuickContext2DTexture
+{
+    Q_OBJECT
+
+public:
+    QQuickContext2DImageTexture(bool threadRendering = true);
+    ~QQuickContext2DImageTexture();
+    virtual int textureId() const;
+    virtual void bind();
+    virtual bool supportThreadRendering() const {return true;}
+    virtual bool supportDirectRendering() const;
+    virtual QQuickCanvasItem::RenderTarget renderTarget() const;
+    virtual void lock();
+    virtual void unlock();
+    virtual void wait();
+    virtual void wake();
+
+    virtual bool updateTexture();
+    virtual QQuickContext2DTile* createTile() const;
+    virtual QImage toImage(const QRectF& region = QRectF());
+    virtual QPaintDevice* beginPainting();
+    virtual void compositeTile(QQuickContext2DTile* tile);
+
+private Q_SLOTS:
+    void grabImage(const QRect& r);
+private:
+    QImage m_image;
+    QImage m_grabedImage;
+    QMutex m_mutex;
+    QWaitCondition m_waitCondition;
+    QPainter m_painter;
+    QSGPlainTexture*  m_texture;
+};
+
+QT_END_HEADER
+
+QT_END_NAMESPACE
+
+#endif // QQUICKCONTEXT2DTEXTURE_P_H