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/****************************************************************************
**
** Copyright (C) 2012 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 QSGTEXTURE_H
#define QSGTEXTURE_H
#include <QtQuick/qtquickglobal.h>
#include <QObject>
#include <QImage>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QSGTexturePrivate;
class Q_QUICK_EXPORT QSGTexture : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QSGTexture)
public:
QSGTexture();
~QSGTexture();
enum WrapMode {
Repeat,
ClampToEdge
};
enum Filtering {
None,
Nearest,
Linear
};
virtual int textureId() const = 0;
virtual QSize textureSize() const = 0;
virtual bool hasAlphaChannel() const = 0;
virtual bool hasMipmaps() const = 0;
virtual QRectF textureSubRect() const;
virtual bool isAtlasTexture() const;
virtual QSGTexture *removedFromAtlas() const;
virtual void bind() = 0;
void updateBindOptions(bool force = false);
void setMipmapFiltering(Filtering filter);
QSGTexture::Filtering mipmapFiltering() const;
void setFiltering(Filtering filter);
QSGTexture::Filtering filtering() const;
void setHorizontalWrapMode(WrapMode hwrap);
QSGTexture::WrapMode horizontalWrapMode() const;
void setVerticalWrapMode(WrapMode vwrap);
QSGTexture::WrapMode verticalWrapMode() const;
inline QRectF convertToNormalizedSourceRect(const QRectF &rect) const;
protected:
QSGTexture(QSGTexturePrivate &dd);
};
QRectF QSGTexture::convertToNormalizedSourceRect(const QRectF &rect) const
{
QSize s = textureSize();
QRectF r = textureSubRect();
qreal sx = r.width() / s.width();
qreal sy = r.height() / s.height();
return QRectF(r.x() + rect.x() * sx,
r.y() + rect.y() * sy,
rect.width() * sx,
rect.height() * sy);
}
class Q_QUICK_EXPORT QSGDynamicTexture : public QSGTexture
{
Q_OBJECT
public:
virtual bool updateTexture() = 0;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif
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