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diff --git a/src/imports/shaders/scenegraph/qsggeometry.cpp b/src/imports/shaders/scenegraph/qsggeometry.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QML Shaders plugin of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qsggeometry.h"
+
+QT_BEGIN_NAMESPACE
+
+
+/*!
+    Convenience function which returns attributes to be used for 2D solid
+    color drawing.
+ */
+
+const QSGGeometry::AttributeSet &QSGGeometry::defaultAttributes_Point2D()
+{
+    static Attribute data[] = {
+        { 0, 2, GL_FLOAT }
+    };
+    static AttributeSet attrs = { 1, sizeof(float) * 2, data };
+    return attrs;
+}
+
+/*!
+    Convenience function which returns attributes to be used for textured 2D drawing.
+ */
+
+const QSGGeometry::AttributeSet &QSGGeometry::defaultAttributes_TexturedPoint2D()
+{
+    static Attribute data[] = {
+        { 0, 2, GL_FLOAT },
+        { 1, 2, GL_FLOAT }
+    };
+    static AttributeSet attrs = { 2, sizeof(float) * 4, data };
+    return attrs;
+}
+
+/*!
+    Convenience function which returns attributes to be used for per vertex colored 2D drawing.
+ */
+
+const QSGGeometry::AttributeSet &QSGGeometry::defaultAttributes_ColoredPoint2D()
+{
+    static Attribute data[] = {
+        { 0, 2, GL_FLOAT },
+        { 1, 4, GL_UNSIGNED_BYTE }
+    };
+    static AttributeSet attrs = { 2, 2 * sizeof(float) + 4 * sizeof(char), data };
+    return attrs;
+}
+
+
+/*!
+    \class QSGGeometry
+    \brief The QSGGeometry class provides low-level storage for graphics primitives
+    in the QML Scene Graph.
+
+    The QSGGeometry class provides a few convenience attributes and attribute accessors
+    by default. The defaultAttributes_Point2D() function returns attributes to be used
+    in normal solid color rectangles, while the defaultAttributes_TexturedPoint2D function
+    returns attributes to be used for the common pixmap usecase.
+ */
+
+
+/*!
+    Constructs a geometry object based on \a attributes.
+
+    The object allocate space for \a vertexCount vertices based on the accumulated
+    size in \a attributes and for \a indexCount.
+
+    Geometry objects are constructed with GL_TRIANGLE_STRIP as default drawing mode.
+
+    The attribute structure is assumed to be POD and the geometry object
+    assumes this will not go away. There is no memory management involved.
+ */
+
+QSGGeometry::QSGGeometry(const QSGGeometry::AttributeSet &attributes,
+                         int vertexCount,
+                         int indexCount,
+                         int indexType)
+    : m_drawing_mode(GL_TRIANGLE_STRIP)
+    , m_vertex_count(0)
+    , m_index_count(0)
+    , m_index_type(indexType)
+    , m_attributes(attributes)
+    , m_data(0)
+    , m_index_data_offset(-1)
+    , m_owns_data(false)
+{
+    Q_ASSERT(m_attributes.count > 0);
+    Q_ASSERT(m_attributes.stride > 0);
+
+    // Because allocate reads m_vertex_count, m_index_count and m_owns_data, these
+    // need to be set before calling allocate...
+    allocate(vertexCount, indexCount);
+}
+
+QSGGeometry::~QSGGeometry()
+{
+    if (m_owns_data)
+        qFree(m_data);
+}
+
+/*!
+    \fn int QSGGeometry::vertexCount() const
+
+    Returns the number of vertices in this geometry object.
+ */
+
+/*!
+    \fn int QSGGeometry::indexCount() const
+
+    Returns the number of indices in this geometry object.
+ */
+
+
+
+/*!
+    \fn void *QSGGeometry::vertexData()
+
+    Returns a pointer to the raw vertex data of this geometry object.
+
+    \sa vertexDataAsPoint2D(), vertexDataAsTexturedPoint2D
+ */
+
+/*!
+    \fn const void *QSGGeometry::vertexData() const
+
+    Returns a pointer to the raw vertex data of this geometry object.
+
+    \sa vertexDataAsPoint2D(), vertexDataAsTexturedPoint2D
+ */
+
+/*!
+    Returns a pointer to the raw index data of this geometry object.
+
+    \sa indexDataAsUShort(), indexDataAsUInt()
+ */
+void *QSGGeometry::indexData()
+{
+    return m_index_data_offset < 0
+            ? 0
+            : ((char *) m_data + m_index_data_offset);
+}
+
+/*!
+    Returns a pointer to the raw index data of this geometry object.
+
+    \sa indexDataAsUShort(), indexDataAsUInt()
+ */
+const void *QSGGeometry::indexData() const
+{
+    return m_index_data_offset < 0
+            ? 0
+            : ((char *) m_data + m_index_data_offset);
+}
+
+/*!
+    Sets the drawing mode to be used for this geometry.
+
+    The default value is GL_TRIANGLE_STRIP.
+ */
+void QSGGeometry::setDrawingMode(GLenum mode)
+{
+    m_drawing_mode = mode;
+}
+
+/*!
+    \fn int QSGGeometry::drawingMode() const
+
+    Returns the drawing mode of this geometry.
+
+    The default value is GL_TRIANGLE_STRIP.
+ */
+
+/*!
+    \fn int QSGGeometry::indexType() const
+
+    Returns the primitive type used for indices in this
+    geometry object.
+ */
+
+
+/*!
+    Resizes the vertex and index data of this geometry object to fit \a vertexCount
+    vertices and \a indexCount indices.
+
+    Vertex and index data will be invalidated after this call and the caller must
+ */
+void QSGGeometry::allocate(int vertexCount, int indexCount)
+{
+    if (vertexCount == m_vertex_count && indexCount == m_index_count)
+        return;
+
+    m_vertex_count = vertexCount;
+    m_index_count = indexCount;
+
+    bool canUsePrealloc = m_index_count <= 0;
+    int vertexByteSize = m_attributes.stride * m_vertex_count;
+
+    if (m_owns_data)
+        qFree(m_data);
+
+    if (canUsePrealloc && vertexByteSize <= (int) sizeof(m_prealloc)) {
+        m_data = (void *) &m_prealloc[0];
+        m_index_data_offset = -1;
+        m_owns_data = false;
+    } else {
+        Q_ASSERT(m_index_type == GL_UNSIGNED_INT || m_index_type == GL_UNSIGNED_SHORT);
+        int indexByteSize = indexCount * (m_index_type == GL_UNSIGNED_SHORT ? sizeof(quint16) : sizeof(quint32));
+        m_data = (void *) qMalloc(vertexByteSize + indexByteSize);
+        m_index_data_offset = vertexByteSize;
+        m_owns_data = true;
+    }
+
+}
+
+/*!
+    Updates the geometry \a g with the coordinates in \a rect.
+
+    The function assumes the geometry object contains a single triangle strip
+    of QSGGeometry::Point2D vertices
+ */
+void QSGGeometry::updateRectGeometry(QSGGeometry *g, const QRectF &rect)
+{
+    Point2D *v = g->vertexDataAsPoint2D();
+    v[0].x = rect.left();
+    v[0].y = rect.top();
+
+    v[1].x = rect.right();
+    v[1].y = rect.top();
+
+    v[2].x = rect.left();
+    v[2].y = rect.bottom();
+
+    v[3].x = rect.right();
+    v[3].y = rect.bottom();
+}
+
+/*!
+    Updates the geometry \a g with the coordinates in \a rect and texture
+    coordinates from \a textureRect.
+
+    \a textureRect should be in normalized coordinates.
+
+    \a g is assumed to be a triangle strip of four vertices of type
+    QSGGeometry::TexturedPoint2D.
+ */
+void QSGGeometry::updateTexturedRectGeometry(QSGGeometry *g, const QRectF &rect, const QRectF &textureRect)
+{
+    TexturedPoint2D *v = g->vertexDataAsTexturedPoint2D();
+    v[0].x = rect.left();
+    v[0].y = rect.top();
+    v[0].tx = textureRect.left();
+    v[0].ty = textureRect.top();
+
+    v[1].x = rect.right();
+    v[1].y = rect.top();
+    v[1].tx = textureRect.right();
+    v[1].ty = textureRect.top();
+
+    v[2].x = rect.left();
+    v[2].y = rect.bottom();
+    v[2].tx = textureRect.left();
+    v[2].ty = textureRect.bottom();
+
+    v[3].x = rect.right();
+    v[3].y = rect.bottom();
+    v[3].tx = textureRect.right();
+    v[3].ty = textureRect.bottom();
+}
+
+QT_END_NAMESPACE