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Diffstat (limited to 'src/declarative/items/qquickshadereffectnode_p.h')
-rw-r--r-- | src/declarative/items/qquickshadereffectnode_p.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/declarative/items/qquickshadereffectnode_p.h b/src/declarative/items/qquickshadereffectnode_p.h new file mode 100644 index 0000000000..50213ff396 --- /dev/null +++ b/src/declarative/items/qquickshadereffectnode_p.h @@ -0,0 +1,151 @@ +/**************************************************************************** +** +** 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 QQUICKSHADEREFFECTNODE_P_H +#define QQUICKSHADEREFFECTNODE_P_H + +#include "qsgnode.h" +#include "qsgmaterial.h" +#include <private/qsgtextureprovider_p.h> +#include <qquickitem.h> + +#include <QtCore/qsharedpointer.h> +#include <QtCore/qpointer.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +struct QQuickShaderEffectMaterialKey { + QByteArray vertexCode; + QByteArray fragmentCode; + const char *className; + + bool operator == (const QQuickShaderEffectMaterialKey &other) const; +}; + +uint qHash(const QQuickShaderEffectMaterialKey &key); + +// TODO: Implement support for multisampling. +struct QQuickShaderEffectProgram : public QQuickShaderEffectMaterialKey +{ + QQuickShaderEffectProgram() : respectsOpacity(false), respectsMatrix(false) {} + + QVector<QByteArray> attributeNames; + QSet<QByteArray> uniformNames; + + uint respectsOpacity : 1; + uint respectsMatrix : 1; +}; + + +class QQuickCustomMaterialShader; +class QQuickShaderEffectMaterial : public QSGMaterial +{ +public: + enum CullMode + { + NoCulling, + BackFaceCulling, + FrontFaceCulling + }; + + QQuickShaderEffectMaterial(); + virtual QSGMaterialType *type() const; + virtual QSGMaterialShader *createShader() const; + virtual int compare(const QSGMaterial *other) const; + + void setCullMode(CullMode face); + CullMode cullMode() const; + + void setProgramSource(const QQuickShaderEffectProgram &); + void setUniforms(const QVector<QPair<QByteArray, QVariant> > &uniformValues); + void setTextureProviders(const QVector<QPair<QByteArray, QSGTextureProvider *> > &textures); + const QVector<QPair<QByteArray, QSGTextureProvider *> > &textureProviders() const; + void updateTextures() const; + +protected: + friend class QQuickCustomMaterialShader; + + // The type pointer needs to be unique. It is not safe to let the type object be part of the + // QQuickShaderEffectMaterial, since it can be deleted and a new one constructed on top of the old + // one. The new QQuickShaderEffectMaterial would then get the same type pointer as the old one, and + // CustomMaterialShaders based on the old one would incorrectly be used together with the new + // one. To guarantee that the type pointer is unique, the type object must live as long as + // there are any CustomMaterialShaders of that type. + QSharedPointer<QSGMaterialType> m_type; + + QQuickShaderEffectProgram m_source; + QVector<QPair<QByteArray, QVariant> > m_uniformValues; + QVector<QPair<QByteArray, QSGTextureProvider *> > m_textures; + CullMode m_cullMode; + + static QHash<QQuickShaderEffectMaterialKey, QSharedPointer<QSGMaterialType> > materialMap; +}; + + +class QSGShaderEffectMesh; + +class QQuickShaderEffectNode : public QObject, public QSGGeometryNode +{ + Q_OBJECT +public: + QQuickShaderEffectNode(); + virtual ~QQuickShaderEffectNode(); + + virtual void preprocess(); + + QQuickShaderEffectMaterial *shaderMaterial() { return &m_material; } + +private Q_SLOTS: + void markDirtyTexture(); + +private: + QQuickShaderEffectMaterial m_material; +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QQUICKSHADEREFFECTNODE_P_H |