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1 ///////////////////////////////////////////////////////////////////////////
2 // Name: displayx11.cpp
3 // Purpose: Unix/X11 implementation of wxDisplay class
4 // Author: Brian Victor
5 // Modified by:
6 // Created: 12/05/02
7 // RCS-ID: $Id$
8 // Copyright: (c) wxWidgets team
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // For compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
14
15 #ifdef __BORLANDC__
16 #pragma hdrstop
17 #endif
18
19 #include "wx/display.h"
20 #include "wx/intl.h"
21 #include "wx/log.h"
22
23 #ifndef WX_PRECOMP
24 #include "wx/dynarray.h"
25 #include "wx/gdicmn.h"
26 #include "wx/string.h"
27 #include "wx/utils.h"
28 #endif /* WX_PRECOMP */
29
30 #if wxUSE_DISPLAY
31
32 /* These must be included after the wx files. Otherwise the Data macro in
33 * Xlibint.h conflicts with a function declaration in wx/list.h. */
34 extern "C" {
35 #include <X11/Xlib.h>
36 #include <X11/Xlibint.h>
37 #include <X11/extensions/Xinerama.h>
38 #ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
39 #include <X11/extensions/xf86vmode.h>
40 #endif
41 }
42
43 class wxDisplayUnixPriv
44 {
45 public:
46 wxRect m_rect;
47 int m_depth;
48 };
49
50 size_t wxDisplayBase::GetCount()
51 {
52 Display *disp = (Display*)wxGetDisplay();
53
54 if ( XineramaIsActive(disp) )
55 {
56 XineramaScreenInfo *screenarr;
57 int numscreens;
58 screenarr = XineramaQueryScreens(disp, &numscreens);
59 XFree(screenarr);
60 return numscreens;
61 }
62 else
63 {
64 return 1;
65 }
66 }
67
68 int wxDisplayBase::GetFromPoint(const wxPoint &p)
69 {
70 Display *disp = (Display*)wxGetDisplay();
71
72 if ( XineramaIsActive(disp) )
73 {
74 int which_screen = -1;
75 XineramaScreenInfo *screenarr;
76 int numscreens;
77 screenarr = XineramaQueryScreens(disp, &numscreens);
78
79 int i;
80 for (i = 0; i < numscreens; ++i)
81 {
82 if (p.x >= screenarr[i].x_org &&
83 p.x < screenarr[i].x_org + screenarr[i].width &&
84 p.y >= screenarr[i].y_org &&
85 p.y < screenarr[i].y_org + screenarr[i].height)
86 {
87 which_screen = i;
88 }
89 }
90
91 XFree(screenarr);
92 return which_screen;
93 }
94 else
95 {
96 wxSize size = wxGetDisplaySize();
97 if (p.x >= 0 &&
98 p.x < size.GetWidth() &&
99 p.y >= 0 &&
100 p.y < size.GetHeight())
101 {
102 return 0;
103 }
104
105 return -1;
106 }
107 }
108
109 wxDisplay::wxDisplay(size_t index) : wxDisplayBase ( index ), m_priv( new wxDisplayUnixPriv )
110 {
111 Display *disp = (Display*)wxGetDisplay();
112
113 if ( XineramaIsActive(disp) )
114 {
115 XineramaScreenInfo *screenarr;
116 int numscreens;
117 screenarr = XineramaQueryScreens(disp, &numscreens);
118
119 m_priv->m_rect = wxRect(screenarr[index].x_org, screenarr[index].y_org,
120 screenarr[index].width, screenarr[index].height);
121 m_priv->m_depth = DefaultDepth(disp, DefaultScreen(disp));
122 XFree(screenarr);
123 }
124 else
125 {
126 wxSize size = wxGetDisplaySize();
127 m_priv->m_rect = wxRect(0, 0, size.GetWidth(), size.GetHeight());
128 m_priv->m_depth = wxDisplayDepth();
129 }
130 }
131
132 wxDisplay::~wxDisplay()
133 {
134 delete m_priv;
135 }
136
137 wxRect wxDisplay::GetGeometry() const
138 {
139 return m_priv->m_rect;
140 }
141
142 int wxDisplay::GetDepth() const
143 {
144 return m_priv->m_depth;
145 }
146
147 wxString wxDisplay::GetName() const
148 {
149 return wxEmptyString;
150 }
151
152
153 #ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
154
155 //
156 // See (http://www.xfree86.org/4.2.0/XF86VidModeDeleteModeLine.3.html) for more
157 // info about xf86 video mode extensions
158 //
159
160 //free private data common to x (usually s3) servers
161 #define wxClearXVM(vm) if(vm.privsize) XFree(vm.c_private)
162
163 // Correct res rate from GLFW
164 #define wxCRR2(v,dc) (int) (((1000.0f * (float) dc) /*PIXELS PER SECOND */) / ((float) v.htotal * v.vtotal /*PIXELS PER FRAME*/) + 0.5f)
165 #define wxCRR(v) wxCRR2(v,v.dotclock)
166 #define wxCVM2(v, dc) wxVideoMode(v.hdisplay, v.vdisplay, DefaultDepth((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay())), wxCRR2(v,dc))
167 #define wxCVM(v) wxCVM2(v, v.dotclock)
168
169 wxArrayVideoModes wxDisplay::GetModes(const wxVideoMode& mode) const
170 {
171 //Convenience...
172 Display* pDisplay = (Display*) wxGetDisplay(); //default display
173 int nScreen = DefaultScreen(pDisplay); //default screen of (default) display...
174
175 //Some variables..
176 XF86VidModeModeInfo** ppXModes; //Enumerated Modes (Don't forget XFree() :))
177 int nNumModes; //Number of modes enumerated....
178
179 wxArrayVideoModes Modes; //modes to return...
180
181 if (XF86VidModeGetAllModeLines(pDisplay, nScreen, &nNumModes, &ppXModes) == TRUE)
182 {
183 for (int i = 0; i < nNumModes; ++i)
184 {
185 if (mode == wxDefaultVideoMode || //According to display.h All modes valid if dafault mode...
186 mode.Matches(wxCVM((*ppXModes[i]))) ) //...?
187 {
188 Modes.Add(wxCVM((*ppXModes[i])));
189 }
190 wxClearXVM((*ppXModes[i]));
191 // XFree(ppXModes[i]); //supposed to free?
192 }
193 XFree(ppXModes);
194 }
195 else //OOPS!
196 {
197 wxLogSysError(_("Failed to enumerate video modes"));
198 }
199
200 return Modes;
201 }
202
203 wxVideoMode wxDisplay::GetCurrentMode() const
204 {
205 XF86VidModeModeLine VM;
206 int nDotClock;
207 XF86VidModeGetModeLine((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()),
208 &nDotClock, &VM);
209 wxClearXVM(VM);
210 return wxCVM2(VM, nDotClock);
211 }
212
213 bool wxDisplay::ChangeMode(const wxVideoMode& mode)
214 {
215 XF86VidModeModeInfo** ppXModes; //Enumerated Modes (Don't forget XFree() :))
216 int nNumModes; //Number of modes enumerated....
217
218 if( !XF86VidModeGetAllModeLines((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()), &nNumModes, &ppXModes) )
219 {
220 wxLogSysError(_("Failed to change video mode"));
221 return false;
222 }
223
224 bool bRet = false;
225 if (mode == wxDefaultVideoMode)
226 {
227 bRet = XF86VidModeSwitchToMode((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()),
228 ppXModes[0]) == TRUE;
229
230 for (int i = 0; i < nNumModes; ++i)
231 {
232 wxClearXVM((*ppXModes[i]));
233 // XFree(ppXModes[i]); //supposed to free?
234 }
235 }
236 else
237 {
238 for (int i = 0; i < nNumModes; ++i)
239 {
240 if (!bRet &&
241 ppXModes[i]->hdisplay == mode.w &&
242 ppXModes[i]->vdisplay == mode.h &&
243 wxCRR((*ppXModes[i])) == mode.refresh)
244 {
245 //switch!
246 bRet = XF86VidModeSwitchToMode((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()),
247 ppXModes[i]) == TRUE;
248 }
249 wxClearXVM((*ppXModes[i]));
250 // XFree(ppXModes[i]); //supposed to free?
251 }
252 }
253
254 XFree(ppXModes);
255
256 return bRet;
257 }
258
259
260 #else // !HAVE_X11_EXTENSIONS_XF86VMODE_H
261
262 wxArrayVideoModes wxDisplay::GetModes(const wxVideoMode& mode) const
263 {
264 Display *disp = (Display*)wxGetDisplay();
265 int count_return;
266 int* depths = XListDepths(disp, 0, &count_return);
267 wxArrayVideoModes modes;
268 if (depths)
269 {
270 int x;
271 for (x = 0; x < count_return; ++x)
272 {
273 modes.Add(wxVideoMode(m_priv->m_rect.GetWidth(), m_priv->m_rect.GetHeight(), depths[x]));
274 }
275 }
276 return modes;
277 }
278
279 wxVideoMode wxDisplay::GetCurrentMode() const
280 {
281 // Not implemented
282 return wxVideoMode();
283 }
284
285 bool wxDisplay::ChangeMode(const wxVideoMode& mode)
286 {
287 // Not implemented
288 return false;
289 }
290
291 #endif // !HAVE_X11_EXTENSIONS_XF86VMODE_H
292
293 #endif /* wxUSE_DISPLAY */