1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
* osdbase.h: Basic interface to the On Screen Display
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: osdbase.h 1.4 2002/07/13 14:45:55 kls Exp $
*/
#ifndef __OSDBASE_H
#define __OSDBASE_H
#include <stdio.h>
#include "font.h"
#define MAXNUMCOLORS 16
enum eDvbColor {
#ifdef DEBUG_OSD
clrBackground,
clrTransparent = clrBackground,
clrBlack = clrBackground,
clrRed,
clrGreen,
clrYellow,
clrBlue,
clrMagenta,
clrCyan,
clrWhite,
#else
clrTransparent = 0x00000000,
clrBackground = 0x7F000000, // 50% gray
clrBlack = 0xFF000000,
clrRed = 0xFF1414FC,
clrGreen = 0xFF24FC24,
clrYellow = 0xFF24C0FC,
clrMagenta = 0xFFFC00B0,
clrBlue = 0xFFFC0000,
clrCyan = 0xFFFCFC00,
clrWhite = 0xFFFCFCFC,
#endif
};
class cPalette {
private:
eDvbColor color[MAXNUMCOLORS];
int maxColors, numColors;
bool used[MAXNUMCOLORS];
bool fetched[MAXNUMCOLORS];
bool full;
protected:
typedef unsigned char tIndexes[MAXNUMCOLORS];
void SetColor(int Index, eDvbColor Color);
eDvbColor GetColor(int Index) { return color[Index]; }
public:
cPalette(int Bpp);
int Index(eDvbColor Color);
void Reset(void);
const eDvbColor *Colors(int &FirstColor, int &LastColor);
void Take(const cPalette &Palette, tIndexes *Indexes = NULL);
};
class cBitmap : public cPalette {
private:
cFont *font;
eDvbFont fontType;
char *bitmap;
bool clearWithBackground;
protected:
int width, height;
int dirtyX1, dirtyY1, dirtyX2, dirtyY2;
public:
cBitmap(int Width, int Height, int Bpp, bool ClearWithBackground = true);
virtual ~cBitmap();
bool ClearWithBackground(void) { return clearWithBackground; }
eDvbFont SetFont(eDvbFont Font);
bool Dirty(int &x1, int &y1, int &x2, int &y2);
void SetIndex(int x, int y, char Index);
void SetPixel(int x, int y, eDvbColor Color);
void SetBitmap(int x, int y, const cBitmap &Bitmap);
int Width(void) { return width; }
int Width(unsigned char c);
int Width(const char *s);
int Height(void) { return height; }
void Text(int x, int y, const char *s, eDvbColor ColorFg = clrWhite, eDvbColor ColorBg = clrBackground);
void Fill(int x1, int y1, int x2, int y2, eDvbColor Color);
void Clean(void);
void Clear(void);
const char *Data(int x, int y);
};
#define MAXNUMWINDOWS 7 // OSD windows are counted 1...7
class cWindow : public cBitmap {
private:
int handle; // the index within the OSD's window array (0...MAXNUMWINDOWS - 1)
int x0, y0;
int bpp;
bool tiled;
bool shown;
public:
cWindow(int Handle, int x, int y, int w, int h, int Bpp, bool ClearWithBackground, bool Tiled);
int X0(void) { return x0; }
int Y0(void) { return y0; }
int Bpp(void) { return bpp; }
bool Tiled(void) { return tiled; }
bool Shown(void) { bool s = shown; shown = true; return s; }
int Handle(void) { return handle; }
bool Contains(int x, int y);
void Relocate(int x, int y);
void Fill(int x1, int y1, int x2, int y2, eDvbColor Color);
void SetBitmap(int x, int y, const cBitmap &Bitmap);
void Text(int x, int y, const char *s, eDvbColor ColorFg = clrWhite, eDvbColor ColorBg = clrBackground);
const char *Data(int x, int y);
};
typedef int tWindowHandle;
// '-1' is used as an error return value!
#define ALL_WINDOWS (-2)
#define ALL_TILED_WINDOWS (-3)
#define LAST_CREATED_WINDOW (-4)
class cOsdBase {
private:
int numWindows;
int x0, y0;
cWindow *window[MAXNUMWINDOWS];
cWindow *GetWindow(int x, int y);
cWindow *GetWindow(tWindowHandle Window);
protected:
cWindow *GetWindowNr(int i) { return i < MAXNUMWINDOWS ? window[i] : NULL; }
int NumWindows(void) { return numWindows; }
int X0(void) { return x0; }
int Y0(void) { return y0; }
virtual bool OpenWindow(cWindow *Window) = 0;
// Opens the window on the OSD hardware, without actually showing it (the
// initial state shall be "hidden").
virtual void CommitWindow(cWindow *Window) = 0;
// Write any modified data and color definitions to the OSD hardware.
// Use the window's Dirty() function to find out which area of data
// actually needs to be transferred. If the window has not yet been explicitly
// shown through a call to ShowWindow(), no visible activity shall take place.
virtual void ShowWindow(cWindow *Window) = 0;
// Make the window actually visible on the OSD hardware.
virtual void HideWindow(cWindow *Window, bool Hide) = 0;
// Temporarily hide the window (if 'Hide' is 'true') or make a previously
// hidden window visible again (if 'Hide' is 'false').
virtual void MoveWindow(cWindow *Window, int x, int y) = 0;
// Move the window to a new location.
virtual void CloseWindow(cWindow *Window) = 0;
// Close the window and release any OSD hardware resources allocated for it.
public:
cOsdBase(int x, int y);
// Initializes the OSD, starting at screen coordinates (x, y).
virtual ~cOsdBase();
// Destroys all windows and shuts down the OSD.
tWindowHandle Create(int x, int y, int w, int h, int Bpp, bool ClearWithBackground = true, bool Tiled = true);
// Creates a window at coordinates (x, y), which are relative to the OSD's
// origin given in the constructor, with the given width, height and color
// depth. ClearWithBackground controls whether the window will be filled with
// clrBackground when it is cleared. Setting this to 'false' may be useful
// for windows that don't need clrBackground but want to save this color
// palette entry for a different color. Tiled controls whether this will
// be part of a multi section OSD (with several windows that all have
// different color depths and palettes and form one large OSD area), or
// whether this is a "standalone" window that will be drawn "in front"
// of any windows defined *after* this one (this can be used for highlighting
// certain parts of the OSD, as would be done in a 'cursor').
// Returns a handle that can be used to identify this window.
void AddColor(eDvbColor Color, tWindowHandle Window = LAST_CREATED_WINDOW);
// Adds the Color to the color palette of the given window if it is not
// already contained in the palette (and if the palette still has free
// slots for new colors). The default value LAST_CREATED_WINDOW will
// access the most recently created window, without the need of explicitly
// using a window handle.
void Flush(void);
// Actually commits all data of all windows to the OSD.
void Clear(tWindowHandle Window = ALL_TILED_WINDOWS);
// Clears the given window. If ALL_TILED_WINDOWS is given, only the tiled
// windows will be cleared, leaving the standalone windows untouched. If
// ALL_WINDOWS is given, the standalone windows will also be cleared.
void Fill(int x1, int y1, int x2, int y2, eDvbColor Color, tWindowHandle Window = ALL_TILED_WINDOWS);
// Fills the rectangle defined by the upper left (x1, y2) and lower right
// (x2, y2) corners with the given Color. If a specific window is given,
// the coordinates are relative to that window's upper left corner.
// Otherwise they are relative to the upper left corner of the entire OSD.
// If all tiled windows are selected, only that window which contains the
// point (x1, y1) will actually be filled.
void SetBitmap(int x, int y, const cBitmap &Bitmap, tWindowHandle Window = ALL_TILED_WINDOWS);
// Sets the pixels within the given window with the data from the given
// Bitmap. See Fill() for details about the coordinates.
int Width(unsigned char c);
// Returns the width (in pixels) of the given character in the current font.
int Width(const char *s);
// Returns the width (in pixels) of the given string in the current font.
eDvbFont SetFont(eDvbFont Font);
// Sets the current font for subsequent Width() and Text() operations.
void Text(int x, int y, const char *s, eDvbColor ColorFg = clrWhite, eDvbColor ColorBg = clrBackground, tWindowHandle Window = ALL_TILED_WINDOWS);
// Writes the given string at coordinates (x, y) with the given foreground
// and background color into the given window (see Fill() for details
// about the coordinates).
void Relocate(tWindowHandle Window, int x, int y, int NewWidth = -1, int NewHeight = -1);
// Moves the given window to the new location at (x, y). If NewWidth and
// NewHeight are also given, the window will also be resized to the new
// width and height.
void Hide(tWindowHandle Window);
// Hides the given window.
void Show(tWindowHandle Window);
// Shows the given window.
};
#endif //__OSDBASE_H
|
