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#ifndef QSCREENLINUXFB_QWS_H

#define QSCREENLINUXFB_QWS_H

#include <QtGui/qscreen_qws.h>

struct fb_cmap;

struct fb_var_screeninfo;

struct fb_fix_screeninfo;

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_QWS_LINUXFB

class QLinuxFb_Shared

{

public:

    volatile int lastop;

    volatile int optype;

    volatile int fifocount;   // Accel drivers only

    volatile int fifomax;

    volatile int forecol;     // Foreground colour caching

    volatile unsigned int buffer_offset;   // Destination

    volatile int linestep;

    volatile int cliptop;    // Clip rectangle

    volatile int clipleft;

    volatile int clipright;

    volatile int clipbottom;

    volatile unsigned int rop;

};

class QLinuxFbScreenPrivate;

class Q_GUI_EXPORT QLinuxFbScreen : public QScreen

{

public:

    explicit QLinuxFbScreen(int display_id);

    virtual ~QLinuxFbScreen();

    virtual bool initDevice();

    virtual bool connect(const QString &displaySpec);

    virtual bool useOffscreen();

    virtual void disconnect();

    virtual void shutdownDevice();

    virtual void setMode(int,int,int);

    virtual void save();

    virtual void restore();

    virtual void blank(bool on);

    virtual void set(unsigned int,unsigned int,unsigned int,unsigned int);

    virtual uchar * cache(int);

    virtual void uncache(uchar *);

    virtual int sharedRamSize(void *);

    QLinuxFb_Shared * shared;

protected:

    void deleteEntry(uchar *);

    bool canaccel;

    int dataoffset;

    int cacheStart;

    static void clearCache(QScreen *instance, int);

private:

    void delete_entry(int);

    void insert_entry(int,int,int);

    void setupOffScreen();

    void createPalette(fb_cmap &cmap, fb_var_screeninfo &vinfo, fb_fix_screeninfo &finfo);

    void setPixelFormat(struct fb_var_screeninfo);

    QLinuxFbScreenPrivate *d_ptr;

};

#endif // QT_NO_QWS_LINUXFB

QT_END_NAMESPACE

QT_END_HEADER

#endif // QSCREENLINUXFB_QWS_H