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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPLATFORMSHAREDGRAPHICSCACHE_QPA_H
#define QPLATFORMSHAREDGRAPHICSCACHE_QPA_H
#include <QtCore/qobject.h>
#include <QtGui/qimage.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class Q_GUI_EXPORT QPlatformSharedGraphicsCache: public QObject
{
Q_OBJECT
public:
enum PixelFormat
{
Alpha8
};
enum BufferType
{
OpenGLTexture
};
QPlatformSharedGraphicsCache(QObject *parent = 0) : QObject(parent) {}
Q_INVOKABLE virtual void ensureCacheInitialized(const QByteArray &cacheId, BufferType bufferType,
PixelFormat pixelFormat) = 0;
Q_INVOKABLE virtual void requestItems(const QByteArray &cacheId, const QVector<quint32> &itemIds) = 0;
Q_INVOKABLE virtual void insertItems(const QByteArray &cacheId,
const QVector<quint32> &itemIds,
const QVector<QImage> &items) = 0;
Q_INVOKABLE virtual void releaseItems(const QByteArray &cacheId, const QVector<quint32> &itemIds) = 0;
virtual void serializeBuffer(void *bufferId, QByteArray *serializedData, int *fileDescriptor) const = 0;
virtual uint textureIdForBuffer(void *bufferId) = 0;
virtual void referenceBuffer(void *bufferId) = 0;
virtual bool dereferenceBuffer(void *bufferId) = 0;
Q_SIGNALS:
void itemsMissing(const QByteArray &cacheId, const QVector<quint32> &itemIds);
void itemsAvailable(const QByteArray &cacheId, void *bufferId, const QSize &bufferSize,
const QVector<quint32> &itemIds, const QVector<QPoint> &positionsInBuffer);
void itemsInvalidated(const QByteArray &cacheId, const QVector<quint32> &itemIds);
void itemsUpdated(const QByteArray &cacheId, void *bufferId, const QSize &bufferSize,
const QVector<quint32> &itemIds, const QVector<QPoint> &positionsInBuffer);
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QPLATFORMSHAREDGRAPHICSCACHE_QPA_H
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