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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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLRENDERER_H
#define QMLRENDERER_H
#include "qsgrenderer_p.h"
#include <QtGui/private/qdatabuffer_p.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class IndexGeometryNodePair : public QPair<int, QSGGeometryNode *>
{
public:
IndexGeometryNodePair(int i, QSGGeometryNode *n);
bool operator < (const IndexGeometryNodePair &other) const;
};
// Minimum heap.
class IndexGeometryNodePairHeap
{
public:
IndexGeometryNodePairHeap();
void insert(const IndexGeometryNodePair &x);
const IndexGeometryNodePair &top() const { return v.first(); }
IndexGeometryNodePair pop();
bool isEmpty() const { return v.isEmpty(); }
private:
static int parent(int i) { return (i - 1) >> 1; }
static int left(int i) { return (i << 1) | 1; }
static int right(int i) { return (i + 1) << 1; }
QDataBuffer<IndexGeometryNodePair> v;
};
class QSGDefaultRenderer : public QSGRenderer
{
Q_OBJECT
public:
QSGDefaultRenderer(QSGContext *context);
void render();
void nodeChanged(QSGNode *node, QSGNode::DirtyFlags flags);
void setSortFrontToBackEnabled(bool sort);
bool isSortFrontToBackEnabled() const;
private:
void buildLists(QSGNode *node);
void renderNodes(const QDataBuffer<QSGGeometryNode *> &list);
const QSGClipNode *m_currentClip;
QSGMaterial *m_currentMaterial;
QSGMaterialShader *m_currentProgram;
const QMatrix4x4 *m_currentMatrix;
QMatrix4x4 m_renderOrderMatrix;
QDataBuffer<QSGGeometryNode *> m_opaqueNodes;
QDataBuffer<QSGGeometryNode *> m_transparentNodes;
QDataBuffer<QSGGeometryNode *> m_tempNodes;
IndexGeometryNodePairHeap m_heap;
bool m_rebuild_lists;
bool m_needs_sorting;
bool m_sort_front_to_back;
int m_currentRenderOrder;
#ifdef QML_RUNTIME_TESTING
bool m_render_opaque_nodes;
bool m_render_alpha_nodes;
#endif
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QMLRENDERER_H
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