e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #include <X11/Xlib.h> |
25 | #include <X11/Xutil.h> |
26 | |
27 | #include "SDL_version.h" |
28 | #include "SDL_timer.h" |
29 | #include "SDL_video.h" |
30 | #include "SDL_syswm.h" |
31 | #include "../SDL_pixels_c.h" |
32 | #include "../../events/SDL_events_c.h" |
33 | #include "SDL_x11modes_c.h" |
34 | #include "SDL_x11wm_c.h" |
35 | |
36 | static Uint8 reverse_byte(Uint8 x) |
37 | { |
38 | x = (x & 0xaa) >> 1 | (x & 0x55) << 1; |
39 | x = (x & 0xcc) >> 2 | (x & 0x33) << 2; |
40 | x = (x & 0xf0) >> 4 | (x & 0x0f) << 4; |
41 | return x; |
42 | } |
43 | |
44 | void X11_SetIcon(_THIS, SDL_Surface *icon, Uint8 *mask) |
45 | { |
46 | SDL_Surface *sicon; |
47 | XWMHints *wmhints; |
48 | XImage *icon_image; |
49 | Pixmap icon_pixmap; |
50 | Pixmap mask_pixmap; |
51 | Window icon_window = None; |
52 | GC gc; |
53 | XGCValues GCvalues; |
54 | int i, dbpp; |
55 | SDL_Rect bounds; |
56 | Uint8 *LSBmask; |
57 | Visual *dvis; |
58 | char *p; |
59 | int masksize; |
60 | |
61 | SDL_Lock_EventThread(); |
62 | |
63 | /* The icon must use the default visual, depth and colormap of the |
64 | screen, so it might need a conversion */ |
65 | dvis = DefaultVisual(SDL_Display, SDL_Screen); |
66 | dbpp = DefaultDepth(SDL_Display, SDL_Screen); |
67 | for(i = 0; i < this->hidden->nvisuals; i++) { |
68 | if(this->hidden->visuals[i].visual == dvis) { |
69 | dbpp = this->hidden->visuals[i].bpp; |
70 | break; |
71 | } |
72 | } |
73 | |
74 | /* The Visual struct is supposed to be opaque but we cheat a little */ |
75 | sicon = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, |
76 | dbpp, |
77 | dvis->red_mask, dvis->green_mask, |
78 | dvis->blue_mask, 0); |
79 | if ( sicon == NULL ) |
80 | goto done; |
81 | |
82 | if(dbpp == 8) { |
83 | /* Default visual is 8bit; we need to allocate colours from |
84 | the default colormap */ |
85 | SDL_Color want[256], got[256]; |
86 | int nwant; |
87 | Colormap dcmap; |
88 | int missing; |
89 | dcmap = DefaultColormap(SDL_Display, SDL_Screen); |
90 | if(icon->format->palette) { |
91 | /* The icon has a palette as well - we just have to |
92 | find those colours */ |
93 | nwant = icon->format->palette->ncolors; |
94 | SDL_memcpy(want, icon->format->palette->colors, |
95 | nwant * sizeof want[0]); |
96 | } else { |
97 | /* try the standard 6x6x6 cube for lack of better |
98 | ideas */ |
99 | int r, g, b, i; |
100 | for(r = i = 0; r < 256; r += 0x33) |
101 | for(g = 0; g < 256; g += 0x33) |
102 | for(b = 0; b < 256; b += 0x33, i++) { |
103 | want[i].r = r; |
104 | want[i].g = g; |
105 | want[i].b = b; |
106 | } |
107 | nwant = 216; |
108 | } |
109 | if(SDL_iconcolors) { |
110 | /* free already allocated colours first */ |
111 | unsigned long freelist[512]; |
112 | int nfree = 0; |
113 | for(i = 0; i < 256; i++) { |
114 | while(SDL_iconcolors[i]) { |
115 | freelist[nfree++] = i; |
116 | SDL_iconcolors[i]--; |
117 | } |
118 | } |
119 | XFreeColors(GFX_Display, dcmap, freelist, nfree, 0); |
120 | } |
121 | if(!SDL_iconcolors) |
122 | SDL_iconcolors = SDL_malloc(256 * sizeof *SDL_iconcolors); |
123 | SDL_memset(SDL_iconcolors, 0, 256 * sizeof *SDL_iconcolors); |
124 | |
125 | /* try to allocate the colours */ |
126 | SDL_memset(got, 0, sizeof got); |
127 | missing = 0; |
128 | for(i = 0; i < nwant; i++) { |
129 | XColor c; |
130 | c.red = want[i].r << 8; |
131 | c.green = want[i].g << 8; |
132 | c.blue = want[i].b << 8; |
133 | c.flags = DoRed | DoGreen | DoBlue; |
134 | if(XAllocColor(GFX_Display, dcmap, &c)) { |
135 | /* got the colour */ |
136 | SDL_iconcolors[c.pixel]++; |
137 | got[c.pixel] = want[i]; |
138 | } else { |
139 | missing = 1; |
140 | } |
141 | } |
142 | if(missing) { |
143 | /* Some colours were apparently missing, so we just |
144 | allocate all the rest as well */ |
145 | XColor cols[256]; |
146 | for(i = 0; i < 256; i++) |
147 | cols[i].pixel = i; |
148 | XQueryColors(GFX_Display, dcmap, cols, 256); |
149 | for(i = 0; i < 256; i++) { |
150 | got[i].r = cols[i].red >> 8; |
151 | got[i].g = cols[i].green >> 8; |
152 | got[i].b = cols[i].blue >> 8; |
153 | if(!SDL_iconcolors[i]) { |
154 | if(XAllocColor(GFX_Display, dcmap, |
155 | cols + i)) { |
156 | SDL_iconcolors[i] = 1; |
157 | } else { |
158 | /* index not available */ |
159 | got[i].r = 0; |
160 | got[i].g = 0; |
161 | got[i].b = 0; |
162 | } |
163 | } |
164 | } |
165 | } |
166 | |
167 | SDL_SetColors(sicon, got, 0, 256); |
168 | } |
169 | |
170 | bounds.x = 0; |
171 | bounds.y = 0; |
172 | bounds.w = icon->w; |
173 | bounds.h = icon->h; |
174 | if ( SDL_LowerBlit(icon, &bounds, sicon, &bounds) < 0 ) |
175 | goto done; |
176 | |
177 | /* We need the mask as given, except in LSBfirst format instead of |
178 | MSBfirst. Reverse the bits in each byte. */ |
179 | masksize = ((sicon->w + 7) >> 3) * sicon->h; |
180 | LSBmask = SDL_malloc(masksize); |
181 | if ( LSBmask == NULL ) { |
182 | goto done; |
183 | } |
184 | SDL_memset(LSBmask, 0, masksize); |
185 | for(i = 0; i < masksize; i++) |
186 | LSBmask[i] = reverse_byte(mask[i]); |
187 | mask_pixmap = XCreatePixmapFromBitmapData(SDL_Display, WMwindow, |
188 | (char *)LSBmask, |
189 | sicon->w, sicon->h, |
190 | 1L, 0L, 1); |
191 | |
192 | /* Transfer the image to an X11 pixmap */ |
193 | icon_image = XCreateImage(SDL_Display, |
194 | DefaultVisual(SDL_Display, SDL_Screen), |
195 | DefaultDepth(SDL_Display, SDL_Screen), |
196 | ZPixmap, 0, sicon->pixels, |
197 | sicon->w, sicon->h, |
198 | 32, 0); |
199 | icon_image->byte_order = (SDL_BYTEORDER == SDL_BIG_ENDIAN) |
200 | ? MSBFirst : LSBFirst; |
201 | icon_pixmap = XCreatePixmap(SDL_Display, SDL_Root, sicon->w, sicon->h, |
202 | DefaultDepth(SDL_Display, SDL_Screen)); |
203 | gc = XCreateGC(SDL_Display, icon_pixmap, 0, &GCvalues); |
204 | XPutImage(SDL_Display, icon_pixmap, gc, icon_image, |
205 | 0, 0, 0, 0, sicon->w, sicon->h); |
206 | XFreeGC(SDL_Display, gc); |
207 | XDestroyImage(icon_image); |
208 | SDL_free(LSBmask); |
209 | sicon->pixels = NULL; |
210 | |
211 | /* Some buggy window managers (some versions of Enlightenment, it |
212 | seems) need an icon window *and* icon pixmap to work properly, while |
213 | it screws up others. The default is only to use a pixmap. */ |
214 | p = SDL_getenv("SDL_VIDEO_X11_ICONWIN"); |
215 | if(p && *p) { |
216 | icon_window = XCreateSimpleWindow(SDL_Display, SDL_Root, |
217 | 0, 0, sicon->w, sicon->h, 0, |
218 | CopyFromParent, |
219 | CopyFromParent); |
220 | XSetWindowBackgroundPixmap(SDL_Display, icon_window, |
221 | icon_pixmap); |
222 | XClearWindow(SDL_Display, icon_window); |
223 | } |
224 | |
225 | /* Set the window icon to the icon pixmap (and icon window) */ |
226 | wmhints = XAllocWMHints(); |
227 | wmhints->flags = (IconPixmapHint | IconMaskHint | InputHint); |
228 | wmhints->icon_pixmap = icon_pixmap; |
229 | wmhints->icon_mask = mask_pixmap; |
230 | wmhints->input = True; |
231 | if(icon_window != None) { |
232 | wmhints->flags |= IconWindowHint; |
233 | wmhints->icon_window = icon_window; |
234 | } |
235 | XSetWMHints(SDL_Display, WMwindow, wmhints); |
236 | XFree(wmhints); |
237 | XSync(SDL_Display, False); |
238 | |
239 | done: |
240 | SDL_Unlock_EventThread(); |
241 | SDL_FreeSurface(sicon); |
242 | } |
243 | |
244 | void X11_SetCaptionNoLock(_THIS, const char *title, const char *icon) |
245 | { |
246 | XTextProperty titleprop, iconprop; |
247 | Status status; |
248 | |
249 | #ifdef X_HAVE_UTF8_STRING |
250 | Atom _NET_WM_NAME = 0; |
251 | Atom _NET_WM_ICON_NAME = 0; |
252 | |
253 | /* Look up some useful Atoms */ |
254 | if (SDL_X11_HAVE_UTF8) { |
255 | _NET_WM_NAME = XInternAtom(SDL_Display, "_NET_WM_NAME", False); |
256 | _NET_WM_ICON_NAME = XInternAtom(SDL_Display, "_NET_WM_ICON_NAME", False); |
257 | } |
258 | #endif |
259 | |
260 | if ( title != NULL ) { |
261 | char *title_locale = SDL_iconv_utf8_locale(title); |
262 | if ( !title_locale ) { |
263 | SDL_OutOfMemory(); |
264 | return; |
265 | } |
266 | status = XStringListToTextProperty(&title_locale, 1, &titleprop); |
267 | SDL_free(title_locale); |
268 | if ( status ) { |
269 | XSetTextProperty(SDL_Display, WMwindow, &titleprop, XA_WM_NAME); |
270 | XFree(titleprop.value); |
271 | } |
272 | #ifdef X_HAVE_UTF8_STRING |
273 | if (SDL_X11_HAVE_UTF8) { |
274 | status = Xutf8TextListToTextProperty(SDL_Display, |
275 | (char **)&title, 1, XUTF8StringStyle, &titleprop); |
276 | if ( status == Success ) { |
277 | XSetTextProperty(SDL_Display, WMwindow, &titleprop, _NET_WM_NAME); |
278 | XFree(titleprop.value); |
279 | } |
280 | } |
281 | #endif |
282 | } |
283 | if ( icon != NULL ) { |
284 | char *icon_locale = SDL_iconv_utf8_locale(icon); |
285 | if ( !icon_locale ) { |
286 | SDL_OutOfMemory(); |
287 | return; |
288 | } |
289 | status = XStringListToTextProperty(&icon_locale, 1, &iconprop); |
290 | SDL_free(icon_locale); |
291 | if ( status ) { |
292 | XSetTextProperty(SDL_Display, WMwindow, &iconprop, XA_WM_ICON_NAME); |
293 | XFree(iconprop.value); |
294 | } |
295 | #ifdef X_HAVE_UTF8_STRING |
296 | if (SDL_X11_HAVE_UTF8) { |
297 | status = Xutf8TextListToTextProperty(SDL_Display, |
298 | (char **)&icon, 1, XUTF8StringStyle, &iconprop); |
299 | if ( status == Success ) { |
300 | XSetTextProperty(SDL_Display, WMwindow, &iconprop, _NET_WM_ICON_NAME); |
301 | XFree(iconprop.value); |
302 | } |
303 | } |
304 | #endif |
305 | } |
306 | XSync(SDL_Display, False); |
307 | } |
308 | |
309 | void X11_SetCaption(_THIS, const char *title, const char *icon) |
310 | { |
311 | SDL_Lock_EventThread(); |
312 | X11_SetCaptionNoLock(this, title, icon); |
313 | SDL_Unlock_EventThread(); |
314 | } |
315 | |
316 | /* Iconify the window */ |
317 | int X11_IconifyWindow(_THIS) |
318 | { |
319 | int result; |
320 | |
321 | SDL_Lock_EventThread(); |
322 | result = XIconifyWindow(SDL_Display, WMwindow, SDL_Screen); |
323 | XSync(SDL_Display, False); |
324 | SDL_Unlock_EventThread(); |
325 | return(result); |
326 | } |
327 | |
328 | SDL_GrabMode X11_GrabInputNoLock(_THIS, SDL_GrabMode mode) |
329 | { |
330 | int result; |
331 | |
332 | if ( this->screen == NULL ) { |
333 | return(SDL_GRAB_OFF); |
334 | } |
335 | if ( ! SDL_Window ) { |
336 | return(mode); /* Will be set later on mode switch */ |
337 | } |
338 | if ( mode == SDL_GRAB_OFF ) { |
339 | XUngrabPointer(SDL_Display, CurrentTime); |
340 | XUngrabKeyboard(SDL_Display, CurrentTime); |
341 | } else { |
342 | if ( this->screen->flags & SDL_FULLSCREEN ) { |
343 | /* Unbind the mouse from the fullscreen window */ |
344 | XUngrabPointer(SDL_Display, CurrentTime); |
345 | } |
346 | /* Try to grab the mouse */ |
347 | #if 0 /* We'll wait here until we actually grab, otherwise behavior undefined */ |
348 | for ( numtries = 0; numtries < 10; ++numtries ) { |
349 | #else |
350 | for ( ; ; ) { |
351 | #endif |
352 | result = XGrabPointer(SDL_Display, SDL_Window, True, 0, |
353 | GrabModeAsync, GrabModeAsync, |
354 | SDL_Window, None, CurrentTime); |
355 | if ( result == GrabSuccess ) { |
356 | break; |
357 | } |
358 | SDL_Delay(100); |
359 | } |
360 | if ( result != GrabSuccess ) { |
361 | /* Uh, oh, what do we do here? */ ; |
362 | } |
363 | /* Now grab the keyboard */ |
364 | XGrabKeyboard(SDL_Display, WMwindow, True, |
365 | GrabModeAsync, GrabModeAsync, CurrentTime); |
366 | |
367 | /* Raise the window if we grab the mouse */ |
368 | if ( !(this->screen->flags & SDL_FULLSCREEN) ) |
369 | XRaiseWindow(SDL_Display, WMwindow); |
370 | |
371 | /* Make sure we register input focus */ |
372 | SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS); |
373 | /* Since we grabbed the pointer, we have mouse focus, too. */ |
374 | SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); |
375 | } |
376 | XSync(SDL_Display, False); |
377 | |
378 | return(mode); |
379 | } |
380 | |
381 | SDL_GrabMode X11_GrabInput(_THIS, SDL_GrabMode mode) |
382 | { |
383 | SDL_Lock_EventThread(); |
384 | mode = X11_GrabInputNoLock(this, mode); |
385 | SDL_Unlock_EventThread(); |
386 | |
387 | return(mode); |
388 | } |
389 | |
390 | /* If 'info' is the right version, this function fills it and returns 1. |
391 | Otherwise, in case of a version mismatch, it returns -1. |
392 | */ |
393 | static void lock_display(void) |
394 | { |
395 | SDL_Lock_EventThread(); |
396 | } |
397 | static void unlock_display(void) |
398 | { |
399 | /* Make sure any X11 transactions are completed */ |
400 | SDL_VideoDevice *this = current_video; |
401 | XSync(SDL_Display, False); |
402 | SDL_Unlock_EventThread(); |
403 | } |
404 | |
405 | #include <stdio.h> |
406 | int X11_GetWMInfo(_THIS, SDL_SysWMinfo *info) |
407 | { |
408 | if ( info->version.major <= SDL_MAJOR_VERSION ) { |
409 | info->subsystem = SDL_SYSWM_X11; |
410 | info->info.x11.display = SDL_Display; |
411 | info->info.x11.window = SDL_Window; |
412 | if ( SDL_VERSIONNUM(info->version.major, |
413 | info->version.minor, |
414 | info->version.patch) >= 1002 ) { |
415 | info->info.x11.fswindow = FSwindow; |
416 | info->info.x11.wmwindow = WMwindow; |
417 | } |
418 | |
419 | |
420 | if ( SDL_VERSIONNUM(info->version.major, |
421 | info->version.minor, |
422 | info->version.patch) >= 1212 ) { |
423 | info->info.x11.gfxdisplay = GFX_Display; |
424 | } |
425 | |
426 | info->info.x11.lock_func = lock_display; |
427 | info->info.x11.unlock_func = unlock_display; |
428 | return(1); |
429 | } else { |
430 | SDL_SetError("Application not compiled with SDL %d.%d\n", |
431 | SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
432 | return(-1); |
433 | } |
434 | } |