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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
QT_MODULE(Gui)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 enum DriverTypes { GenericDriver, EInk8Track };
92
93 virtual void disconnect();
94 virtual void shutdownDevice();
95 virtual void setMode(int,int,int);
96 virtual void save();
97 virtual void restore();
98 virtual void blank(bool on);
99 virtual void set(unsigned int,unsigned int,unsigned int,unsigned int);
100 virtual uchar * cache(int);
101 virtual void uncache(uchar *);
102 virtual int sharedRamSize(void *);
103 virtual void setDirty(const QRect&);
104
105 QLinuxFb_Shared * shared;
106
107 protected:
108
109 void deleteEntry(uchar *);
110
111 bool canaccel;
112 int dataoffset;
113 int cacheStart;
114
115 virtual void fixupScreenInfo(fb_fix_screeninfo &finfo, fb_var_screeninfo &vinfo);
116 static void clearCache(QScreen *instance, int);
117
118 private:
119
120 void delete_entry(int);
121 void insert_entry(int,int,int);
122 void setupOffScreen();
123 void createPalette(fb_cmap &cmap, fb_var_screeninfo &vinfo, fb_fix_screeninfo &finfo);
124 void setPixelFormat(struct fb_var_screeninfo);
125
126 QLinuxFbScreenPrivate *d_ptr;
127 };
128
129 #endif // QT_NO_QWS_LINUXFB
130
131 QT_END_NAMESPACE
132
133 QT_END_HEADER
134
135 #endif // QSCREENLINUXFB_QWS_H
136