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Diffstat (limited to 'src/declarative/items/qsgshadereffect_p.h')
-rw-r--r-- | src/declarative/items/qsgshadereffect_p.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/src/declarative/items/qsgshadereffect_p.h b/src/declarative/items/qsgshadereffect_p.h new file mode 100644 index 0000000000..0cced9a229 --- /dev/null +++ b/src/declarative/items/qsgshadereffect_p.h @@ -0,0 +1,166 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 SHADEREFFECTITEM_H +#define SHADEREFFECTITEM_H + +#include "qsgitem.h" + +#include "qsgmaterial.h" +#include <private/qsgadaptationlayer_p.h> +#include <private/qsgshadereffectnode_p.h> +#include "qsgshadereffectmesh_p.h" + +#include <QtCore/qpointer.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +const char *qtPositionAttributeName(); +const char *qtTexCoordAttributeName(); + +class QSGContext; +class QSignalMapper; +class QSGCustomMaterialShader; + +class QSGShaderEffect : public QSGItem +{ + 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 culling READ cullMode WRITE setCullMode NOTIFY cullModeChanged) + Q_ENUMS(CullMode) + +public: + enum CullMode + { + NoCulling = QSGShaderEffectMaterial::NoCulling, + BackFaceCulling = QSGShaderEffectMaterial::BackFaceCulling, + FrontFaceCulling = QSGShaderEffectMaterial::FrontFaceCulling + }; + + QSGShaderEffect(QSGItem *parent = 0); + ~QSGShaderEffect(); + + virtual void componentComplete(); + + QByteArray fragmentShader() const { return m_source.fragmentCode; } + void setFragmentShader(const QByteArray &code); + + QByteArray vertexShader() const { return m_source.vertexCode; } + 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); + +Q_SIGNALS: + void fragmentShaderChanged(); + void vertexShaderChanged(); + void blendingChanged(); + void meshChanged(); + void cullModeChanged(); + +protected: + virtual void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry); + virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *); + +private Q_SLOTS: + void changeSource(int index); + void updateData(); + void updateGeometry(); + +private: + friend class QSGCustomMaterialShader; + friend class QSGShaderEffectNode; + + void setSource(const QVariant &var, int index); + void disconnectPropertySignals(); + void connectPropertySignals(); + void reset(); + void updateProperties(); + void lookThroughShaderCode(const QByteArray &code); + + QSGShaderEffectProgram m_source; + QSize m_meshResolution; + QSGShaderEffectMesh *m_deprecatedMesh; // TODO: Remove after grace period. + QSGGridMesh m_defaultMesh; + CullMode m_cullMode; + + struct SourceData + { + QSignalMapper *mapper; + QPointer<QSGItem> item; + QByteArray name; + }; + QVector<SourceData> m_sources; + QSGShaderEffectMaterial m_material; + + uint m_blending : 1; + uint m_dirtyData : 1; + + uint m_programDirty : 1; + uint m_dirtyMesh : 1; + uint m_dirtyGeometry : 1; +}; + +// TODO: Remove after grace period. +class QSGShaderEffectItem : public QSGShaderEffect +{ +public: + QSGShaderEffectItem(QSGItem *parent = 0); +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // SHADEREFFECTITEM_H |