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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 QtGui 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#ifndef QOPENGLTEXTURECACHE_P_H
#define QOPENGLTEXTURECACHE_P_H
#include <QHash>
#include <QObject>
#include <QtGui/QtGui>
#include <private/qopenglcontext_p.h>
#include <QtCore/qmutex.h>
QT_BEGIN_NAMESPACE
class QOpenGLCachedTexture
{
public:
QOpenGLCachedTexture(GLuint id, QOpenGLContext *context);
~QOpenGLCachedTexture() { m_resource->free(); }
GLuint id() const { return m_resource->id(); }
private:
QOpenGLSharedResourceGuard *m_resource;
};
class Q_GUI_EXPORT QOpenGLTextureCache : public QOpenGLSharedResource
{
public:
static QOpenGLTextureCache *cacheForContext(QOpenGLContext *context);
QOpenGLTextureCache(QOpenGLContext *);
~QOpenGLTextureCache();
GLuint bindTexture(QOpenGLContext *context, const QPixmap &pixmap);
GLuint bindTexture(QOpenGLContext *context, const QImage &image);
void invalidate(qint64 key);
void invalidateResource();
void freeResource(QOpenGLContext *ctx);
private:
GLuint bindTexture(QOpenGLContext *context, qint64 key, const QImage &image);
QMutex m_mutex;
QCache<quint64, QOpenGLCachedTexture> m_cache;
};
QT_END_NAMESPACE
#endif
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