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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtQml 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 QMLRENDERER_H
#define QMLRENDERER_H
#include "qsgrenderer_p.h"
#include <QtGui/private/qdatabuffer_p.h>
#include "qsgrendernode_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QSGDefaultRenderer : public QSGRenderer
{
Q_OBJECT
public:
class IndexNodePair : public QPair<int, QSGNode *>
{
public:
IndexNodePair(int i, QSGNode *n);
bool operator < (const IndexNodePair &other) const;
};
// Minimum heap.
class IndexNodePairHeap
{
public:
IndexNodePairHeap();
void insert(const IndexNodePair &x);
const IndexNodePair &top() const { return v.first(); }
IndexNodePair 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<IndexNodePair> v;
};
QSGDefaultRenderer(QSGContext *context);
void render();
void nodeChanged(QSGNode *node, QSGNode::DirtyState state);
void setSortFrontToBackEnabled(bool sort);
bool isSortFrontToBackEnabled() const;
private:
void buildLists(QSGNode *node);
void renderNodes(QSGNode *const *nodes, int count);
const QSGClipNode *m_currentClip;
QSGMaterial *m_currentMaterial;
QSGMaterialShader *m_currentProgram;
const QMatrix4x4 *m_currentMatrix;
QMatrix4x4 m_renderOrderMatrix;
QDataBuffer<QSGNode *> m_opaqueNodes;
QDataBuffer<QSGNode *> m_transparentNodes;
QDataBuffer<QSGNode *> m_tempNodes;
struct RenderGroup { int opaqueEnd, transparentEnd; };
QDataBuffer<RenderGroup> m_renderGroups;
IndexNodePairHeap m_heap;
bool m_rebuild_lists;
bool m_needs_sorting;
bool m_sort_front_to_back;
bool m_render_node_added;
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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