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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQuick 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 QQUICKSHADEREFFECT_P_H
#define QQUICKSHADEREFFECT_P_H
#include <QtQuick/qquickitem.h>
#include <QtQuick/qsgmaterial.h>
#include <private/qtquickglobal_p.h>
#include <private/qsgadaptationlayer_p.h>
#include <private/qquickshadereffectnode_p.h>
#include "qquickshadereffectmesh_p.h"
#include <QtCore/qpointer.h>
QT_BEGIN_NAMESPACE
const char *qtPositionAttributeName();
const char *qtTexCoordAttributeName();
class QSGContext;
class QSignalMapper;
class QQuickCustomMaterialShader;
// Common class for QQuickShaderEffect and QQuickCustomParticle.
struct Q_QUICK_PRIVATE_EXPORT QQuickShaderEffectCommon
{
typedef QQuickShaderEffectMaterialKey Key;
typedef QQuickShaderEffectMaterial::UniformData UniformData;
~QQuickShaderEffectCommon();
void disconnectPropertySignals(QQuickItem *item, Key::ShaderType shaderType);
void connectPropertySignals(QQuickItem *item, Key::ShaderType shaderType);
void updateParseLog(bool ignoreAttributes);
void lookThroughShaderCode(QQuickItem *item, Key::ShaderType shaderType, const QByteArray &code);
void updateShader(QQuickItem *item, Key::ShaderType shaderType);
void updateMaterial(QQuickShaderEffectNode *node, QQuickShaderEffectMaterial *material,
bool updateUniforms, bool updateUniformValues, bool updateTextureProviders);
void updateWindow(QQuickWindow *window);
// Called by slots in QQuickShaderEffect:
void sourceDestroyed(QObject *object);
void propertyChanged(QQuickItem *item, int mappedId, bool *textureProviderChanged);
Key source;
QVector<QByteArray> attributes;
QVector<UniformData> uniformData[Key::ShaderTypeCount];
QVector<QSignalMapper *> signalMappers[Key::ShaderTypeCount];
QString parseLog;
};
class Q_QUICK_PRIVATE_EXPORT QQuickShaderEffect : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(QByteArray fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged)
Q_PROPERTY(QByteArray vertexShader READ vertexShader WRITE setVertexShader NOTIFY vertexShaderChanged)
Q_PROPERTY(bool blending READ blending WRITE setBlending NOTIFY blendingChanged)
Q_PROPERTY(QVariant mesh READ mesh WRITE setMesh NOTIFY meshChanged)
Q_PROPERTY(CullMode cullMode READ cullMode WRITE setCullMode NOTIFY cullModeChanged)
Q_PROPERTY(QString log READ log NOTIFY logChanged)
Q_PROPERTY(Status status READ status NOTIFY statusChanged)
Q_ENUMS(CullMode)
Q_ENUMS(Status)
public:
enum CullMode
{
NoCulling = QQuickShaderEffectMaterial::NoCulling,
BackFaceCulling = QQuickShaderEffectMaterial::BackFaceCulling,
FrontFaceCulling = QQuickShaderEffectMaterial::FrontFaceCulling
};
enum Status
{
Compiled,
Uncompiled,
Error
};
QQuickShaderEffect(QQuickItem *parent = 0);
~QQuickShaderEffect();
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);
bool blending() const { return m_blending; }
void setBlending(bool enable);
QVariant mesh() const;
void setMesh(const QVariant &mesh);
CullMode cullMode() const { return m_cullMode; }
void setCullMode(CullMode face);
QString log() const { return m_log; }
Status status() const { return m_status; }
QString parseLog();
virtual bool event(QEvent *);
Q_SIGNALS:
void fragmentShaderChanged();
void vertexShaderChanged();
void blendingChanged();
void meshChanged();
void cullModeChanged();
void logChanged();
void statusChanged();
protected:
virtual void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
virtual void componentComplete();
virtual void itemChange(ItemChange change, const ItemChangeData &value);
private Q_SLOTS:
void updateGeometry();
void updateLogAndStatus(const QString &log, int status);
void sourceDestroyed(QObject *object);
void propertyChanged(int mappedId);
private:
friend class QQuickCustomMaterialShader;
friend class QQuickShaderEffectNode;
typedef QQuickShaderEffectMaterialKey Key;
typedef QQuickShaderEffectMaterial::UniformData UniformData;
QSize m_meshResolution;
QQuickShaderEffectMesh *m_mesh;
QQuickGridMesh m_defaultMesh;
CullMode m_cullMode;
QString m_log;
Status m_status;
QQuickShaderEffectCommon m_common;
uint m_blending : 1;
uint m_dirtyUniforms : 1;
uint m_dirtyUniformValues : 1;
uint m_dirtyTextureProviders : 1;
uint m_dirtyProgram : 1;
uint m_dirtyParseLog : 1;
uint m_dirtyMesh : 1;
uint m_dirtyGeometry : 1;
};
QT_END_NAMESPACE
#endif // QQUICKSHADEREFFECT_P_H
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