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diff --git a/src/core/render/backend/qgraphicscontext.h b/src/core/render/backend/qgraphicscontext.h
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+/****************************************************************************
+**
+** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGRAPHICSCONTEXT_H
+#define QGRAPHICSCONTEXT_H
+
+#include <QOpenGLContext>
+#include <QOpenGLBuffer>
+#include <QOpenGLVertexArrayObject>
+#include <QHash>
+#include <QMatrix4x4>
+#include <QBitArray>
+
+#include <rendercamera.h>
+#include <meshdata.h>
+
+class QOpenGLShaderProgram;
+class QOpenGLFunctions_3_3_Core;
+
+namespace Qt3D
+{
+
+class RenderShader;
+class RenderCamera;
+class RenderMaterial;
+class RenderTexture;
+class DrawStateSet;
+
+enum TextureScope
+{
+    TextureScopeMaterial = 0,
+    TextureScopeTechnique
+    // per-pass for deferred rendering?
+};
+
+class QGraphicsContext
+{
+public:
+    QGraphicsContext();
+    ~QGraphicsContext();
+
+    void setSurface(QSurface* s);
+
+    int id() const; // unique, small integer ID of this context
+
+    void beginDrawing();
+
+    void endDrawing();
+
+    void setCamera(RenderCamera* rcam);
+    RenderCamera* camera() const;
+
+    QMatrix4x4 projectionMatrix() const;
+    QMatrix4x4 viewMatrix() const;
+
+    /**
+     * @brief releaseGL - release all OpenGL objects associated with
+     * this context
+     */
+    void releaseOpenGL();
+    void setOpenGLContext(QOpenGLContext* ctx);
+    QOpenGLContext *openGLContext() { return m_gl; }
+
+    void activateShader(RenderShader* shader);
+
+    RenderMaterial* activeMaterial() const
+    { return m_material; }
+
+    void setActiveMaterial(RenderMaterial* rmat);
+
+    /**
+     * @brief activeShader
+     * @return
+     */
+    QOpenGLShaderProgram* activeShader();
+
+    void specifyAttribute(QString nm, AttributePtr attr);
+
+    void specifyIndices(AttributePtr attr);
+
+    /**
+     * @brief glBufferFor - given a client-side (CPU) buffer, provide the
+     * context-specific object. Initial call will create the buffer.
+     * @param buf
+     * @return
+     */
+    QOpenGLBuffer glBufferFor(BufferPtr buf);
+
+    void setModelMatrix(const QMatrix4x4 &modelMat);
+
+    /**
+     * @brief activateTexture - make a texture active on a hardware unit
+     * @param tex - the texture to activate
+     * @param onUnit - option, specify the explicit unit to activate on
+     * @return - the unit the texture was activated on
+     */
+    int activateTexture(TextureScope scope, RenderTexture* tex, int onUnit = -1);
+
+    void deactivateTexture(RenderTexture *tex);
+
+    void setCurrentStateSet(DrawStateSet* ss);
+    DrawStateSet* currentStateSet() const;
+private:
+    void initialize();
+
+    void decayTextureScores();
+
+    GLint assignUnitForTexture(RenderTexture* tex);
+    void deactivateTexturesWithScope(TextureScope ts);
+
+
+    bool m_initialized;
+    const unsigned int m_id;
+    QOpenGLContext* m_gl;
+    QSurface* m_surface;
+
+    QOpenGLFunctions_3_3_Core *m_funcs;
+    RenderShader* m_activeShader;
+    QHash<RenderShader*, QOpenGLShaderProgram*> m_shaderHash;
+    QHash<BufferPtr,QOpenGLBuffer> m_bufferHash;
+
+    // active textures, indexed by texture unit
+    QVector<RenderTexture*> m_activeTextures;
+    QBitArray m_pinnedTextureUnits;
+    QVector<TextureScope> m_textureScopes;
+
+    // recency score for all render-textures we've seen. Higher scores
+    // mean more recently used.
+    QHash<RenderTexture*, int> m_textureScores;
+
+    RenderCamera* m_camera;
+    RenderMaterial* m_material;
+
+    DrawStateSet* m_stateSet;
+};
+
+}
+
+#endif // QGRAPHICSCONTEXT_H