1 /****************************************************************************
3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** No Commercial Usage
11 ** This file contains pre-release code and may not be distributed.
12 ** You may use this file in accordance with the terms and conditions
13 ** contained in the Technology Preview License Agreement accompanying
16 ** GNU Lesser General Public License Usage
17 ** Alternatively, this file may be used under the terms of the GNU Lesser
18 ** General Public License version 2.1 as published by the Free Software
19 ** Foundation and appearing in the file LICENSE.LGPL included in the
20 ** packaging of this file. Please review the following information to
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40 ****************************************************************************/
42 #include "qdeclarativeparserstatus.h"
44 #include <QtCore/qobject.h>
45 #include <QtCore/qsize.h>
46 #include <QtCore/qvariant.h>
47 #include <QtOpenGL/qglfunctions.h>
49 #ifndef SHADEREFFECTMESH_H
50 #define SHADEREFFECTMESH_H
56 QT_MODULE(Declarative)
61 class QSGShaderEffectMesh : public QObject
65 QSGShaderEffectMesh(QObject *parent = 0);
66 // If 'geometry' != 0, 'attributes' is the same as last time the function was called.
67 virtual QSGGeometry *updateGeometry(QSGGeometry *geometry, const QVector<QByteArray> &attributes, const QRectF &rect) const = 0;
70 // Emitted when the geometry needs to be updated.
71 void geometryChanged();
74 class QSGGridMesh : public QSGShaderEffectMesh
77 Q_PROPERTY(QSize resolution READ resolution WRITE setResolution NOTIFY resolutionChanged)
79 QSGGridMesh(QObject *parent = 0);
80 virtual QSGGeometry *updateGeometry(QSGGeometry *geometry, const QVector<QByteArray> &attributes, const QRectF &rect) const;
82 void setResolution(const QSize &res);
83 QSize resolution() const;
86 void resolutionChanged();
92 inline QColor qt_premultiply_color(const QColor &c)
94 return QColor::fromRgbF(c.redF() * c.alphaF(), c.greenF() * c.alphaF(), c.blueF() * c.alphaF(), c.alphaF());
102 #endif // SHADEREFFECTITEM_H