/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QSCREENLINUXFB_QWS_H+
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#define QSCREENLINUXFB_QWS_H+
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+
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#include <QtGui/qscreen_qws.h>+
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+
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struct fb_cmap;+
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struct fb_var_screeninfo;+
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struct fb_fix_screeninfo;+
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+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(Gui)+
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+
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#ifndef QT_NO_QWS_LINUXFB+
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+
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class QLinuxFb_Shared+
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{+
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public:+
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    volatile int lastop;+
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    volatile int optype;+
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    volatile int fifocount;   // Accel drivers only+
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    volatile int fifomax;+
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    volatile int forecol;     // Foreground colour caching+
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    volatile unsigned int buffer_offset;   // Destination+
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    volatile int linestep;+
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    volatile int cliptop;    // Clip rectangle+
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    volatile int clipleft;+
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    volatile int clipright;+
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    volatile int clipbottom;+
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    volatile unsigned int rop;+
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+
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};+
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+
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class QLinuxFbScreenPrivate;+
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+
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class Q_GUI_EXPORT QLinuxFbScreen : public QScreen+
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{+
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public:+
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    explicit QLinuxFbScreen(int display_id);+
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    virtual ~QLinuxFbScreen();+
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+
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    virtual bool initDevice();+
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    virtual bool connect(const QString &displaySpec);+
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+
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    virtual bool useOffscreen();+
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+
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    enum DriverTypes { GenericDriver, EInk8Track };+
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+
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    virtual void disconnect();+
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    virtual void shutdownDevice();+
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    virtual void setMode(int,int,int);+
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    virtual void save();+
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    virtual void restore();+
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    virtual void blank(bool on);+
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    virtual void set(unsigned int,unsigned int,unsigned int,unsigned int);+
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    virtual uchar * cache(int);+
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    virtual void uncache(uchar *);+
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    virtual int sharedRamSize(void *);+
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    virtual void setDirty(const QRect&);+
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+
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    QLinuxFb_Shared * shared;+
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+
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protected:+
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+
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    void deleteEntry(uchar *);+
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+
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    bool canaccel;+
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    int dataoffset;+
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    int cacheStart;+
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+
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    virtual void fixupScreenInfo(fb_fix_screeninfo &finfo, fb_var_screeninfo &vinfo);+
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    static void clearCache(QScreen *instance, int);+
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+
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private:+
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+
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    void delete_entry(int);+
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    void insert_entry(int,int,int);+
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    void setupOffScreen();+
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    void createPalette(fb_cmap &cmap, fb_var_screeninfo &vinfo, fb_fix_screeninfo &finfo);+
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    void setPixelFormat(struct fb_var_screeninfo);+
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+
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    QLinuxFbScreenPrivate *d_ptr;+
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};+
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+
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#endif // QT_NO_QWS_LINUXFB+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif // QSCREENLINUXFB_QWS_H+
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