1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtGui module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QSCREENLINUXFB_QWS_H

    43 #define QSCREENLINUXFB_QWS_H

    44 

    45 #include <QtGui/qscreen_qws.h>

    46 

    47 struct fb_cmap;

    48 struct fb_var_screeninfo;

    49 struct fb_fix_screeninfo;

    50 

    51 

    52 QT_BEGIN_HEADER

    53 

    54 QT_BEGIN_NAMESPACE

    55 

    56 QT_MODULE(Gui)

    57 

    58 #ifndef QT_NO_QWS_LINUXFB

    59 

    60 class QLinuxFb_Shared

    61 {

    62 public:

    63     volatile int lastop;

    64     volatile int optype;

    65     volatile int fifocount;   // Accel drivers only

    66     volatile int fifomax;

    67     volatile int forecol;     // Foreground colour caching

    68     volatile unsigned int buffer_offset;   // Destination

    69     volatile int linestep;

    70     volatile int cliptop;    // Clip rectangle

    71     volatile int clipleft;

    72     volatile int clipright;

    73     volatile int clipbottom;

    74     volatile unsigned int rop;

    75 

    76 };

    77 

    78 class QLinuxFbScreenPrivate;

    79 

    80 class Q_GUI_EXPORT QLinuxFbScreen : public QScreen

    81 {

    82 public:

    83     explicit QLinuxFbScreen(int display_id);

    84     virtual ~QLinuxFbScreen();

    85 

    86     virtual bool initDevice();

    87     virtual bool connect(const QString &displaySpec);

    88 

    89     virtual bool useOffscreen();

    90 

    91     virtual void disconnect();

    92     virtual void shutdownDevice();

    93     virtual void setMode(int,int,int);

    94     virtual void save();

    95     virtual void restore();

    96     virtual void blank(bool on);

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

    98     virtual uchar * cache(int);

    99     virtual void uncache(uchar *);

   100     virtual int sharedRamSize(void *);

   101 

   102     QLinuxFb_Shared * shared;

   103 

   104 protected:

   105 

   106     void deleteEntry(uchar *);

   107 

   108     bool canaccel;

   109     int dataoffset;

   110     int cacheStart;

   111 

   112     static void clearCache(QScreen *instance, int);

   113 

   114 private:

   115 

   116     void delete_entry(int);

   117     void insert_entry(int,int,int);

   118     void setupOffScreen();

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

   120     void setPixelFormat(struct fb_var_screeninfo);

   121 

   122     QLinuxFbScreenPrivate *d_ptr;

   123 };

   124 

   125 #endif // QT_NO_QWS_LINUXFB

   126 

   127 QT_END_NAMESPACE

   128 

   129 QT_END_HEADER

   130 

   131 #endif // QSCREENLINUXFB_QWS_H