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/****************************************************************************
**
** Copyright (C) 2011 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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();
enum DriverTypes { GenericDriver, EInk8Track };
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 *);
virtual void setDirty(const QRect&);
QLinuxFb_Shared * shared;
protected:
void deleteEntry(uchar *);
bool canaccel;
int dataoffset;
int cacheStart;
virtual void fixupScreenInfo(fb_fix_screeninfo &finfo, fb_var_screeninfo &vinfo);
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
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