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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 CUSTOM_PARTICLE_H
#define CUSTOM_PARTICLE_H
#include "qquickparticlepainter_p.h"
#include <private/qquickshadereffectnode_p.h>
#include <private/qquickshadereffect_p.h>
#include <QSignalMapper>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QSGNode;
struct PlainVertices;
class QQuickShaderEffectMaterialObject;
//Genealogy: Hybrid of UltraParticle and ShaderEffect
class QQuickCustomParticle : public QQuickParticlePainter
{
Q_OBJECT
Q_PROPERTY(QByteArray fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged)
Q_PROPERTY(QByteArray vertexShader READ vertexShader WRITE setVertexShader NOTIFY vertexShaderChanged)
public:
explicit QQuickCustomParticle(QQuickItem* parent=0);
~QQuickCustomParticle();
QByteArray fragmentShader() const { return m_common.source.sourceCode[Key::FragmentShader]; }
void setFragmentShader(const QByteArray &code);
QByteArray vertexShader() const { return m_common.source.sourceCode[Key::VertexShader]; }
void setVertexShader(const QByteArray &code);
Q_SIGNALS:
void fragmentShaderChanged();
void vertexShaderChanged();
protected:
virtual void initialize(int gIdx, int pIdx);
virtual void commit(int gIdx, int pIdx);
QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
QQuickShaderEffectNode *prepareNextFrame(QQuickShaderEffectNode *rootNode);
void reset();
void resize(int oldCount, int newCount);
virtual void componentComplete();
QQuickShaderEffectNode *buildCustomNodes();
void sceneGraphInvalidated();
void itemChange(ItemChange change, const ItemChangeData &value);
private Q_SLOTS:
void sourceDestroyed(QObject *object);
void propertyChanged(int mappedId);
private:
typedef QQuickShaderEffectMaterialKey Key;
typedef QQuickShaderEffectMaterial::UniformData UniformData;
void buildData(QQuickShaderEffectNode *rootNode);
void updateVertexShader();
QQuickShaderEffectCommon m_common;
QHash<int, QQuickShaderEffectNode*> m_nodes;
qreal m_lastTime;
uint m_dirtyUniforms : 1;
uint m_dirtyUniformValues : 1;
uint m_dirtyTextureProviders : 1;
uint m_dirtyProgram : 1;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif //HEADER_GUARD
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