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a09e091a JB |
1 | /* |
2 | * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. | |
3 | * | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining | |
7 | * a copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation on the rights to use, copy, modify, merge, | |
10 | * publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, | |
12 | * subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial | |
16 | * portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
21 | * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS | |
22 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
23 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
25 | * SOFTWARE. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Author: | |
30 | * Rickard E. (Rik) Faith <faith@redhat.com> | |
31 | * Kevin E. Martin <kem@redhat.com> | |
32 | * | |
33 | */ | |
34 | ||
35 | /** \file | |
36 | * This file provides the only interface to the X server extension support | |
37 | * in programs/Xserver/Xext. Those programs should only include dmxext.h | |
38 | */ | |
39 | ||
40 | #ifdef HAVE_DMX_CONFIG_H | |
41 | #include <dmx-config.h> | |
42 | #endif | |
43 | ||
44 | #include <stdlib.h> | |
45 | ||
46 | #include "dmx.h" | |
47 | #include "dmxinit.h" | |
48 | #include "dmxextension.h" | |
49 | #include "dmxwindow.h" | |
50 | #include "dmxcb.h" | |
51 | #include "dmxcursor.h" | |
52 | #include "dmxpixmap.h" | |
53 | #include "dmxgc.h" | |
54 | #include "dmxfont.h" | |
55 | #include "dmxcmap.h" | |
56 | #include "dmxpict.h" | |
57 | #include "dmxinput.h" | |
58 | #include "dmxsync.h" | |
59 | #include "dmxscrinit.h" | |
60 | #include "input/dmxinputinit.h" | |
61 | ||
62 | #include "windowstr.h" | |
63 | #include "inputstr.h" /* For DeviceIntRec */ | |
64 | #include <X11/extensions/dmxproto.h> /* For DMX_BAD_* */ | |
65 | #include "cursorstr.h" | |
66 | ||
67 | /* The default font is declared in dix/globals.c, but is not included in | |
68 | * _any_ header files. */ | |
69 | extern FontPtr defaultFont; | |
70 | ||
71 | /* Hack to get Present to build (present requires RandR) */ | |
72 | RESTYPE RRCrtcType; | |
73 | ||
74 | /** This routine provides information to the DMX protocol extension | |
75 | * about a particular screen. */ | |
76 | Bool | |
77 | dmxGetScreenAttributes(int physical, DMXScreenAttributesPtr attr) | |
78 | { | |
79 | DMXScreenInfo *dmxScreen; | |
80 | ||
81 | if (physical < 0 || physical >= dmxNumScreens) | |
82 | return FALSE; | |
83 | ||
84 | dmxScreen = &dmxScreens[physical]; | |
85 | attr->displayName = dmxScreen->name; | |
86 | #ifdef PANORAMIX | |
87 | attr->logicalScreen = noPanoramiXExtension ? dmxScreen->index : 0; | |
88 | #else | |
89 | attr->logicalScreen = dmxScreen->index; | |
90 | #endif | |
91 | ||
92 | attr->screenWindowWidth = dmxScreen->scrnWidth; | |
93 | attr->screenWindowHeight = dmxScreen->scrnHeight; | |
94 | attr->screenWindowXoffset = dmxScreen->scrnX; | |
95 | attr->screenWindowYoffset = dmxScreen->scrnY; | |
96 | ||
97 | attr->rootWindowWidth = dmxScreen->rootWidth; | |
98 | attr->rootWindowHeight = dmxScreen->rootHeight; | |
99 | attr->rootWindowXoffset = dmxScreen->rootX; | |
100 | attr->rootWindowYoffset = dmxScreen->rootY; | |
101 | ||
102 | attr->rootWindowXorigin = dmxScreen->rootXOrigin; | |
103 | attr->rootWindowYorigin = dmxScreen->rootYOrigin; | |
104 | ||
105 | return TRUE; | |
106 | } | |
107 | ||
108 | /** This routine provides information to the DMX protocol extension | |
109 | * about a particular window. */ | |
110 | Bool | |
111 | dmxGetWindowAttributes(WindowPtr pWindow, DMXWindowAttributesPtr attr) | |
112 | { | |
113 | dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pWindow); | |
114 | ||
115 | attr->screen = pWindow->drawable.pScreen->myNum; | |
116 | attr->window = pWinPriv->window; | |
117 | ||
118 | attr->pos.x = pWindow->drawable.x; | |
119 | attr->pos.y = pWindow->drawable.y; | |
120 | attr->pos.width = pWindow->drawable.width; | |
121 | attr->pos.height = pWindow->drawable.height; | |
122 | ||
123 | if (!pWinPriv->window || pWinPriv->offscreen) { | |
124 | attr->vis.x = 0; | |
125 | attr->vis.y = 0; | |
126 | attr->vis.height = 0; | |
127 | attr->vis.width = 0; | |
128 | return pWinPriv->window ? TRUE : FALSE; | |
129 | } | |
130 | ||
131 | /* Compute display-relative coordinates */ | |
132 | attr->vis.x = pWindow->drawable.x; | |
133 | attr->vis.y = pWindow->drawable.y; | |
134 | attr->vis.width = pWindow->drawable.width; | |
135 | attr->vis.height = pWindow->drawable.height; | |
136 | ||
137 | if (attr->pos.x < 0) { | |
138 | attr->vis.x -= attr->pos.x; | |
139 | attr->vis.width = attr->pos.x + attr->pos.width - attr->vis.x; | |
140 | } | |
141 | if (attr->pos.x + attr->pos.width > pWindow->drawable.pScreen->width) { | |
142 | if (attr->pos.x < 0) | |
143 | attr->vis.width = pWindow->drawable.pScreen->width; | |
144 | else | |
145 | attr->vis.width = pWindow->drawable.pScreen->width - attr->pos.x; | |
146 | } | |
147 | if (attr->pos.y < 0) { | |
148 | attr->vis.y -= attr->pos.y; | |
149 | attr->vis.height = attr->pos.y + attr->pos.height - attr->vis.y; | |
150 | } | |
151 | if (attr->pos.y + attr->pos.height > pWindow->drawable.pScreen->height) { | |
152 | if (attr->pos.y < 0) | |
153 | attr->vis.height = pWindow->drawable.pScreen->height; | |
154 | else | |
155 | attr->vis.height = pWindow->drawable.pScreen->height - attr->pos.y; | |
156 | } | |
157 | ||
158 | /* Convert to window-relative coordinates */ | |
159 | attr->vis.x -= attr->pos.x; | |
160 | attr->vis.y -= attr->pos.y; | |
161 | ||
162 | return TRUE; | |
163 | } | |
164 | ||
165 | void | |
166 | dmxGetDesktopAttributes(DMXDesktopAttributesPtr attr) | |
167 | { | |
168 | attr->width = dmxGlobalWidth; | |
169 | attr->height = dmxGlobalHeight; | |
170 | attr->shiftX = 0; /* NOTE: The upper left hand corner of */ | |
171 | attr->shiftY = 0; /* the desktop is always <0,0>. */ | |
172 | } | |
173 | ||
174 | /** Return the total number of devices, not just #dmxNumInputs. The | |
175 | * number returned should be the same as that returned by | |
176 | * XListInputDevices. */ | |
177 | int | |
178 | dmxGetInputCount(void) | |
179 | { | |
180 | int i, total; | |
181 | ||
182 | for (total = i = 0; i < dmxNumInputs; i++) | |
183 | total += dmxInputs[i].numDevs; | |
184 | return total; | |
185 | } | |
186 | ||
187 | /** Return information about the device with id = \a deviceId. This | |
188 | * information is primarily for the #ProcDMXGetInputAttributes() | |
189 | * function, which does not have access to the appropriate data | |
190 | * structure. */ | |
191 | int | |
192 | dmxGetInputAttributes(int deviceId, DMXInputAttributesPtr attr) | |
193 | { | |
194 | int i, j; | |
195 | DMXInputInfo *dmxInput; | |
196 | ||
197 | if (deviceId < 0) | |
198 | return -1; | |
199 | for (i = 0; i < dmxNumInputs; i++) { | |
200 | dmxInput = &dmxInputs[i]; | |
201 | for (j = 0; j < dmxInput->numDevs; j++) { | |
202 | DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[j]; | |
203 | ||
204 | if (deviceId != dmxLocal->pDevice->id) | |
205 | continue; | |
206 | attr->isCore = ! !dmxLocal->isCore; | |
207 | attr->sendsCore = ! !dmxLocal->sendsCore; | |
208 | attr->detached = ! !dmxInput->detached; | |
209 | attr->physicalScreen = -1; | |
210 | attr->physicalId = -1; | |
211 | attr->name = NULL; | |
212 | switch (dmxLocal->extType) { | |
213 | case DMX_LOCAL_TYPE_LOCAL: | |
214 | attr->inputType = 0; | |
215 | break; | |
216 | case DMX_LOCAL_TYPE_CONSOLE: | |
217 | attr->inputType = 1; | |
218 | attr->name = dmxInput->name; | |
219 | attr->physicalId = dmxLocal->deviceId; | |
220 | break; | |
221 | case DMX_LOCAL_TYPE_BACKEND: | |
222 | case DMX_LOCAL_TYPE_COMMON: | |
223 | attr->inputType = 2; | |
224 | attr->physicalScreen = dmxInput->scrnIdx; | |
225 | attr->name = dmxInput->name; | |
226 | attr->physicalId = dmxLocal->deviceId; | |
227 | break; | |
228 | } | |
229 | return 0; /* Success */ | |
230 | } | |
231 | } | |
232 | return -1; /* Failure */ | |
233 | } | |
234 | ||
235 | /** Reinitialized the cursor boundaries. */ | |
236 | static void | |
237 | dmxAdjustCursorBoundaries(void) | |
238 | { | |
239 | int i; | |
240 | ||
241 | dmxReInitOrigins(); | |
242 | dmxInitOverlap(); | |
243 | dmxComputeWidthHeight(DMX_NO_RECOMPUTE_BOUNDING_BOX); | |
244 | dmxConnectionBlockCallback(); | |
245 | for (i = 0; i < dmxNumInputs; i++) { | |
246 | DMXInputInfo *dmxInput = &dmxInputs[i]; | |
247 | ||
248 | if (!dmxInput->detached) | |
249 | dmxInputReInit(dmxInput); | |
250 | } | |
251 | ||
252 | dmxCheckCursor(); | |
253 | ||
254 | for (i = 0; i < dmxNumInputs; i++) { | |
255 | DMXInputInfo *dmxInput = &dmxInputs[i]; | |
256 | ||
257 | if (!dmxInput->detached) | |
258 | dmxInputLateReInit(dmxInput); | |
259 | } | |
260 | } | |
261 | ||
262 | /** Add an input with the specified attributes. If the input is added, | |
263 | * the physical id is returned in \a deviceId. */ | |
264 | int | |
265 | dmxAddInput(DMXInputAttributesPtr attr, int *id) | |
266 | { | |
267 | int retcode = BadValue; | |
268 | ||
269 | if (attr->inputType == 1) /* console */ | |
270 | retcode = dmxInputAttachConsole(attr->name, attr->sendsCore, id); | |
271 | else if (attr->inputType == 2) /* backend */ | |
272 | retcode = dmxInputAttachBackend(attr->physicalScreen, | |
273 | attr->sendsCore, id); | |
274 | ||
275 | if (retcode == Success) { | |
276 | /* Adjust the cursor boundaries */ | |
277 | dmxAdjustCursorBoundaries(); | |
278 | ||
279 | /* Force completion of the changes */ | |
280 | dmxSync(NULL, TRUE); | |
281 | } | |
282 | ||
283 | return retcode; | |
284 | } | |
285 | ||
286 | /** Remove the input with physical id \a id. */ | |
287 | int | |
288 | dmxRemoveInput(int id) | |
289 | { | |
290 | return dmxInputDetachId(id); | |
291 | } | |
292 | ||
293 | /** Return the value of #dmxNumScreens -- the total number of backend | |
294 | * screens in use (these are logical screens and may be larger than the | |
295 | * number of backend displays). */ | |
296 | unsigned long | |
297 | dmxGetNumScreens(void) | |
298 | { | |
299 | return dmxNumScreens; | |
300 | } | |
301 | ||
302 | /** Make sure that #dmxCreateAndRealizeWindow has been called for \a | |
303 | * pWindow. */ | |
304 | void | |
305 | dmxForceWindowCreation(WindowPtr pWindow) | |
306 | { | |
307 | dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pWindow); | |
308 | ||
309 | if (!pWinPriv->window) | |
310 | dmxCreateAndRealizeWindow(pWindow, TRUE); | |
311 | } | |
312 | ||
313 | /** Flush pending syncs for all screens. */ | |
314 | void | |
315 | dmxFlushPendingSyncs(void) | |
316 | { | |
317 | dmxSync(NULL, TRUE); | |
318 | } | |
319 | ||
320 | /** Update DMX's screen resources to match those of the newly moved | |
321 | * and/or resized "root" window. */ | |
322 | void | |
323 | dmxUpdateScreenResources(ScreenPtr pScreen, int x, int y, int w, int h) | |
324 | { | |
325 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
326 | WindowPtr pRoot = pScreen->root; | |
327 | WindowPtr pChild; | |
328 | Bool anyMarked = FALSE; | |
329 | ||
330 | /* Handle special case where width and/or height are zero */ | |
331 | if (w == 0 || h == 0) { | |
332 | w = 1; | |
333 | h = 1; | |
334 | } | |
335 | ||
336 | /* Change screen size */ | |
337 | pScreen->width = w; | |
338 | pScreen->height = h; | |
339 | ||
340 | /* Reset the root window's drawable's size */ | |
341 | pRoot->drawable.width = w; | |
342 | pRoot->drawable.height = h; | |
343 | ||
344 | /* Set the root window's new winSize and borderSize */ | |
345 | pRoot->winSize.extents.x1 = 0; | |
346 | pRoot->winSize.extents.y1 = 0; | |
347 | pRoot->winSize.extents.x2 = w; | |
348 | pRoot->winSize.extents.y2 = h; | |
349 | ||
350 | pRoot->borderSize.extents.x1 = 0; | |
351 | pRoot->borderSize.extents.y1 = 0; | |
352 | pRoot->borderSize.extents.x2 = w; | |
353 | pRoot->borderSize.extents.y2 = h; | |
354 | ||
355 | /* Recompute this screen's mmWidth & mmHeight */ | |
356 | pScreen->mmWidth = | |
357 | (w * 254 + dmxScreen->beXDPI * 5) / (dmxScreen->beXDPI * 10); | |
358 | pScreen->mmHeight = | |
359 | (h * 254 + dmxScreen->beYDPI * 5) / (dmxScreen->beYDPI * 10); | |
360 | ||
361 | /* Recompute this screen's window's clip rects as follows: */ | |
362 | /* 1. Mark all of root's children's windows */ | |
363 | for (pChild = pRoot->firstChild; pChild; pChild = pChild->nextSib) | |
364 | anyMarked |= pScreen->MarkOverlappedWindows(pChild, pChild, | |
365 | (WindowPtr *) NULL); | |
366 | ||
367 | /* 2. Set the root window's borderClip */ | |
368 | pRoot->borderClip.extents.x1 = 0; | |
369 | pRoot->borderClip.extents.y1 = 0; | |
370 | pRoot->borderClip.extents.x2 = w; | |
371 | pRoot->borderClip.extents.y2 = h; | |
372 | ||
373 | /* 3. Set the root window's clipList */ | |
374 | if (anyMarked) { | |
375 | /* If any windows have been marked, set the root window's | |
376 | * clipList to be broken since it will be recalculated in | |
377 | * ValidateTree() | |
378 | */ | |
379 | RegionBreak(&pRoot->clipList); | |
380 | } | |
381 | else { | |
382 | /* Otherwise, we just set it directly since there are no | |
383 | * windows visible on this screen | |
384 | */ | |
385 | pRoot->clipList.extents.x1 = 0; | |
386 | pRoot->clipList.extents.y1 = 0; | |
387 | pRoot->clipList.extents.x2 = w; | |
388 | pRoot->clipList.extents.y2 = h; | |
389 | } | |
390 | ||
391 | /* 4. Revalidate all clip rects and generate expose events */ | |
392 | if (anyMarked) { | |
393 | pScreen->ValidateTree(pRoot, NULL, VTBroken); | |
394 | pScreen->HandleExposures(pRoot); | |
395 | if (pScreen->PostValidateTree) | |
396 | pScreen->PostValidateTree(pRoot, NULL, VTBroken); | |
397 | } | |
398 | } | |
399 | ||
400 | #ifdef PANORAMIX | |
401 | #include "panoramiXsrv.h" | |
402 | ||
403 | /** Change the "screen" window attributes by resizing the actual window | |
404 | * on the back-end display (if necessary). */ | |
405 | static void | |
406 | dmxConfigureScreenWindow(int idx, int x, int y, int w, int h) | |
407 | { | |
408 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
409 | ScreenPtr pScreen = screenInfo.screens[idx]; | |
410 | ||
411 | /* Resize "screen" window */ | |
412 | if (dmxScreen->scrnX != x || | |
413 | dmxScreen->scrnY != y || | |
414 | dmxScreen->scrnWidth != w || dmxScreen->scrnHeight != h) { | |
415 | dmxResizeScreenWindow(pScreen, x, y, w, h); | |
416 | } | |
417 | ||
418 | /* Change "screen" window values */ | |
419 | dmxScreen->scrnX = x; | |
420 | dmxScreen->scrnY = y; | |
421 | dmxScreen->scrnWidth = w; | |
422 | dmxScreen->scrnHeight = h; | |
423 | } | |
424 | ||
425 | /** Change the "root" window position and size by resizing the actual | |
426 | * window on the back-end display (if necessary) and updating all of | |
427 | * DMX's resources by calling #dmxUpdateScreenResources. */ | |
428 | static void | |
429 | dmxConfigureRootWindow(int idx, int x, int y, int w, int h) | |
430 | { | |
431 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
432 | WindowPtr pRoot = screenInfo.screens[idx]->root; | |
433 | ||
434 | /* NOTE: Either this function or the ones that it calls must handle | |
435 | * the case where w == 0 || h == 0. Currently, the functions that | |
436 | * this one calls handle that case. */ | |
437 | ||
438 | /* 1. Resize "root" window */ | |
439 | if (dmxScreen->rootX != x || | |
440 | dmxScreen->rootY != y || | |
441 | dmxScreen->rootWidth != w || dmxScreen->rootHeight != h) { | |
442 | dmxResizeRootWindow(pRoot, x, y, w, h); | |
443 | } | |
444 | ||
445 | /* 2. Update all of the screen's resources associated with this root | |
446 | * window */ | |
447 | if (dmxScreen->rootWidth != w || dmxScreen->rootHeight != h) { | |
448 | dmxUpdateScreenResources(screenInfo.screens[idx], x, y, w, h); | |
449 | } | |
450 | ||
451 | /* Change "root" window values */ | |
452 | dmxScreen->rootX = x; | |
453 | dmxScreen->rootY = y; | |
454 | dmxScreen->rootWidth = w; | |
455 | dmxScreen->rootHeight = h; | |
456 | } | |
457 | ||
458 | /** Change the "root" window's origin by updating DMX's internal data | |
459 | * structures (dix and Xinerama) to use the new origin and adjust the | |
460 | * positions of windows that overlap this "root" window. */ | |
461 | static void | |
462 | dmxSetRootWindowOrigin(int idx, int x, int y) | |
463 | { | |
464 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
465 | ScreenPtr pScreen = screenInfo.screens[idx]; | |
466 | WindowPtr pRoot = pScreen->root; | |
467 | WindowPtr pChild; | |
468 | int xoff; | |
469 | int yoff; | |
470 | ||
471 | /* Change "root" window's origin */ | |
472 | dmxScreen->rootXOrigin = x; | |
473 | dmxScreen->rootYOrigin = y; | |
474 | ||
475 | /* Compute offsets here in case <x,y> has been changed above */ | |
476 | xoff = x - pScreen->x; | |
477 | yoff = y - pScreen->y; | |
478 | ||
479 | /* Adjust the root window's position */ | |
480 | pScreen->x = dmxScreen->rootXOrigin; | |
481 | pScreen->y = dmxScreen->rootYOrigin; | |
482 | ||
483 | /* Recalculate the Xinerama regions and data structs */ | |
484 | XineramaReinitData(); | |
485 | ||
486 | /* Adjust each of the root window's children */ | |
487 | if (!idx) | |
488 | ReinitializeRootWindow(screenInfo.screens[0]->root, xoff, yoff); | |
489 | pChild = pRoot->firstChild; | |
490 | while (pChild) { | |
491 | /* Adjust child window's position */ | |
492 | pScreen->MoveWindow(pChild, | |
493 | pChild->origin.x - wBorderWidth(pChild) - xoff, | |
494 | pChild->origin.y - wBorderWidth(pChild) - yoff, | |
495 | pChild->nextSib, VTMove); | |
496 | ||
497 | /* Note that the call to MoveWindow will eventually call | |
498 | * dmxPositionWindow which will automatically create a | |
499 | * window if it is now exposed on screen (for lazy window | |
500 | * creation optimization) and it will properly set the | |
501 | * offscreen flag. | |
502 | */ | |
503 | ||
504 | pChild = pChild->nextSib; | |
505 | } | |
506 | } | |
507 | ||
508 | /** Configure the attributes of each "screen" and "root" window. */ | |
509 | int | |
510 | dmxConfigureScreenWindows(int nscreens, | |
511 | CARD32 *screens, | |
512 | DMXScreenAttributesPtr attribs, int *errorScreen) | |
513 | { | |
514 | int i; | |
515 | ||
516 | for (i = 0; i < nscreens; i++) { | |
517 | DMXScreenAttributesPtr attr = &attribs[i]; | |
518 | int idx = screens[i]; | |
519 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
520 | ||
521 | if (errorScreen) | |
522 | *errorScreen = i; | |
523 | ||
524 | if (!dmxScreen->beDisplay) | |
525 | return DMX_BAD_VALUE; | |
526 | ||
527 | /* Check for illegal values */ | |
528 | if (idx < 0 || idx >= dmxNumScreens) | |
529 | return BadValue; | |
530 | ||
531 | /* The "screen" and "root" windows must have valid sizes */ | |
532 | if (attr->screenWindowWidth <= 0 || attr->screenWindowHeight <= 0 || | |
533 | attr->rootWindowWidth < 0 || attr->rootWindowHeight < 0) | |
534 | return DMX_BAD_VALUE; | |
535 | ||
536 | /* The "screen" window must fit entirely within the BE display */ | |
537 | if (attr->screenWindowXoffset < 0 || | |
538 | attr->screenWindowYoffset < 0 || | |
539 | attr->screenWindowXoffset | |
540 | + attr->screenWindowWidth > (unsigned) dmxScreen->beWidth || | |
541 | attr->screenWindowYoffset | |
542 | + attr->screenWindowHeight > (unsigned) dmxScreen->beHeight) | |
543 | return DMX_BAD_VALUE; | |
544 | ||
545 | /* The "root" window must fit entirely within the "screen" window */ | |
546 | if (attr->rootWindowXoffset < 0 || | |
547 | attr->rootWindowYoffset < 0 || | |
548 | attr->rootWindowXoffset | |
549 | + attr->rootWindowWidth > attr->screenWindowWidth || | |
550 | attr->rootWindowYoffset | |
551 | + attr->rootWindowHeight > attr->screenWindowHeight) | |
552 | return DMX_BAD_VALUE; | |
553 | ||
554 | /* The "root" window must not expose unaddressable coordinates */ | |
555 | if (attr->rootWindowXorigin < 0 || | |
556 | attr->rootWindowYorigin < 0 || | |
557 | attr->rootWindowXorigin + attr->rootWindowWidth > 32767 || | |
558 | attr->rootWindowYorigin + attr->rootWindowHeight > 32767) | |
559 | return DMX_BAD_VALUE; | |
560 | ||
561 | /* The "root" window must fit within the global bounding box */ | |
562 | if (attr->rootWindowXorigin | |
563 | + attr->rootWindowWidth > (unsigned) dmxGlobalWidth || | |
564 | attr->rootWindowYorigin | |
565 | + attr->rootWindowHeight > (unsigned) dmxGlobalHeight) | |
566 | return DMX_BAD_VALUE; | |
567 | ||
568 | /* FIXME: Handle the rest of the illegal value checking */ | |
569 | } | |
570 | ||
571 | /* No illegal values found */ | |
572 | if (errorScreen) | |
573 | *errorScreen = 0; | |
574 | ||
575 | for (i = 0; i < nscreens; i++) { | |
576 | DMXScreenAttributesPtr attr = &attribs[i]; | |
577 | int idx = screens[i]; | |
578 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
579 | ||
580 | dmxLog(dmxInfo, "Changing screen #%d attributes " | |
581 | "from %dx%d+%d+%d %dx%d+%d+%d +%d+%d " | |
582 | "to %dx%d+%d+%d %dx%d+%d+%d +%d+%d\n", | |
583 | idx, | |
584 | dmxScreen->scrnWidth, dmxScreen->scrnHeight, | |
585 | dmxScreen->scrnX, dmxScreen->scrnY, | |
586 | dmxScreen->rootWidth, dmxScreen->rootHeight, | |
587 | dmxScreen->rootX, dmxScreen->rootY, | |
588 | dmxScreen->rootXOrigin, dmxScreen->rootYOrigin, | |
589 | attr->screenWindowWidth, attr->screenWindowHeight, | |
590 | attr->screenWindowXoffset, attr->screenWindowYoffset, | |
591 | attr->rootWindowWidth, attr->rootWindowHeight, | |
592 | attr->rootWindowXoffset, attr->rootWindowYoffset, | |
593 | attr->rootWindowXorigin, attr->rootWindowYorigin); | |
594 | ||
595 | /* Configure "screen" window */ | |
596 | dmxConfigureScreenWindow(idx, | |
597 | attr->screenWindowXoffset, | |
598 | attr->screenWindowYoffset, | |
599 | attr->screenWindowWidth, | |
600 | attr->screenWindowHeight); | |
601 | ||
602 | /* Configure "root" window */ | |
603 | dmxConfigureRootWindow(idx, | |
604 | attr->rootWindowXoffset, | |
605 | attr->rootWindowYoffset, | |
606 | attr->rootWindowWidth, attr->rootWindowHeight); | |
607 | ||
608 | /* Set "root" window's origin */ | |
609 | dmxSetRootWindowOrigin(idx, | |
610 | attr->rootWindowXorigin, | |
611 | attr->rootWindowYorigin); | |
612 | } | |
613 | ||
614 | /* Adjust the cursor boundaries */ | |
615 | dmxAdjustCursorBoundaries(); | |
616 | ||
617 | /* Force completion of the changes */ | |
618 | dmxSync(NULL, TRUE); | |
619 | ||
620 | return Success; | |
621 | } | |
622 | ||
623 | /** Configure the attributes of the global desktop. */ | |
624 | int | |
625 | dmxConfigureDesktop(DMXDesktopAttributesPtr attribs) | |
626 | { | |
627 | if (attribs->width <= 0 || attribs->width >= 32767 || | |
628 | attribs->height <= 0 || attribs->height >= 32767) | |
629 | return DMX_BAD_VALUE; | |
630 | ||
631 | /* If the desktop is shrinking, adjust the "root" windows on each | |
632 | * "screen" window to only show the visible desktop. Also, handle | |
633 | * the special case where the desktop shrinks such that the it no | |
634 | * longer overlaps an portion of a "screen" window. */ | |
635 | if (attribs->width < dmxGlobalWidth || attribs->height < dmxGlobalHeight) { | |
636 | int i; | |
637 | ||
638 | for (i = 0; i < dmxNumScreens; i++) { | |
639 | DMXScreenInfo *dmxScreen = &dmxScreens[i]; | |
640 | ||
641 | if (dmxScreen->rootXOrigin | |
642 | + dmxScreen->rootWidth > attribs->width || | |
643 | dmxScreen->rootYOrigin | |
644 | + dmxScreen->rootHeight > attribs->height) { | |
645 | int w, h; | |
646 | ||
647 | if ((w = attribs->width - dmxScreen->rootXOrigin) < 0) | |
648 | w = 0; | |
649 | if ((h = attribs->height - dmxScreen->rootYOrigin) < 0) | |
650 | h = 0; | |
651 | if (w > dmxScreen->scrnWidth) | |
652 | w = dmxScreen->scrnWidth; | |
653 | if (h > dmxScreen->scrnHeight) | |
654 | h = dmxScreen->scrnHeight; | |
655 | if (w > dmxScreen->rootWidth) | |
656 | w = dmxScreen->rootWidth; | |
657 | if (h > dmxScreen->rootHeight) | |
658 | h = dmxScreen->rootHeight; | |
659 | dmxConfigureRootWindow(i, | |
660 | dmxScreen->rootX, | |
661 | dmxScreen->rootY, w, h); | |
662 | } | |
663 | } | |
664 | } | |
665 | ||
666 | /* Set the global width/height */ | |
667 | dmxSetWidthHeight(attribs->width, attribs->height); | |
668 | ||
669 | /* Handle shift[XY] changes */ | |
670 | if (attribs->shiftX || attribs->shiftY) { | |
671 | int i; | |
672 | ||
673 | for (i = 0; i < dmxNumScreens; i++) { | |
674 | ScreenPtr pScreen = screenInfo.screens[i]; | |
675 | WindowPtr pChild = pScreen->root->firstChild; | |
676 | ||
677 | while (pChild) { | |
678 | /* Adjust child window's position */ | |
679 | pScreen->MoveWindow(pChild, | |
680 | pChild->origin.x - wBorderWidth(pChild) | |
681 | - attribs->shiftX, | |
682 | pChild->origin.y - wBorderWidth(pChild) | |
683 | - attribs->shiftY, pChild->nextSib, VTMove); | |
684 | ||
685 | /* Note that the call to MoveWindow will eventually call | |
686 | * dmxPositionWindow which will automatically create a | |
687 | * window if it is now exposed on screen (for lazy | |
688 | * window creation optimization) and it will properly | |
689 | * set the offscreen flag. | |
690 | */ | |
691 | ||
692 | pChild = pChild->nextSib; | |
693 | } | |
694 | } | |
695 | } | |
696 | ||
697 | /* Update connection block, Xinerama, etc. -- these appears to | |
698 | * already be handled in dmxConnectionBlockCallback(), which is | |
699 | * called from dmxAdjustCursorBoundaries() [below]. */ | |
700 | ||
701 | /* Adjust the cursor boundaries */ | |
702 | dmxAdjustCursorBoundaries(); | |
703 | ||
704 | /* Force completion of the changes */ | |
705 | dmxSync(NULL, TRUE); | |
706 | ||
707 | return Success; | |
708 | } | |
709 | #endif | |
710 | ||
711 | /** Create the scratch GCs per depth. */ | |
712 | static void | |
713 | dmxBECreateScratchGCs(int scrnNum) | |
714 | { | |
715 | ScreenPtr pScreen = screenInfo.screens[scrnNum]; | |
716 | GCPtr *ppGC = pScreen->GCperDepth; | |
717 | int i; | |
718 | ||
719 | for (i = 0; i <= pScreen->numDepths; i++) | |
720 | dmxBECreateGC(pScreen, ppGC[i]); | |
721 | } | |
722 | ||
723 | #ifdef PANORAMIX | |
724 | static Bool FoundPixImage; | |
725 | ||
726 | /** Search the Xinerama XRT_PIXMAP resources for the pixmap that needs | |
727 | * to have its image restored. When it is found, see if there is | |
728 | * another screen with the same image. If so, copy the pixmap image | |
729 | * from the existing screen to the newly created pixmap. */ | |
730 | static void | |
731 | dmxBERestorePixmapImage(pointer value, XID id, RESTYPE type, pointer p) | |
732 | { | |
733 | if ((type & TypeMask) == (XRT_PIXMAP & TypeMask)) { | |
734 | PixmapPtr pDst = (PixmapPtr) p; | |
735 | int idx = pDst->drawable.pScreen->myNum; | |
736 | PanoramiXRes *pXinPix = (PanoramiXRes *) value; | |
737 | PixmapPtr pPix; | |
738 | int i; | |
739 | ||
740 | dixLookupResourceByType((pointer *) &pPix, pXinPix->info[idx].id, | |
741 | RT_PIXMAP, NullClient, DixUnknownAccess); | |
742 | if (pPix != pDst) | |
743 | return; /* Not a match.... Next! */ | |
744 | ||
745 | FOR_NSCREENS(i) { | |
746 | PixmapPtr pSrc; | |
747 | dmxPixPrivPtr pSrcPriv = NULL; | |
748 | ||
749 | if (i == idx) | |
750 | continue; /* Self replication is bad */ | |
751 | ||
752 | dixLookupResourceByType((pointer *) &pSrc, pXinPix->info[i].id, | |
753 | RT_PIXMAP, NullClient, DixUnknownAccess); | |
754 | pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc); | |
755 | if (pSrcPriv->pixmap) { | |
756 | DMXScreenInfo *dmxSrcScreen = &dmxScreens[i]; | |
757 | DMXScreenInfo *dmxDstScreen = &dmxScreens[idx]; | |
758 | dmxPixPrivPtr pDstPriv = DMX_GET_PIXMAP_PRIV(pDst); | |
759 | XImage *img; | |
760 | int j; | |
761 | XlibGC gc = NULL; | |
762 | ||
763 | /* This should never happen, but just in case.... */ | |
764 | if (pSrc->drawable.width != pDst->drawable.width || | |
765 | pSrc->drawable.height != pDst->drawable.height) | |
766 | return; | |
767 | ||
768 | /* Copy from src pixmap to dst pixmap */ | |
769 | img = XGetImage(dmxSrcScreen->beDisplay, | |
770 | pSrcPriv->pixmap, | |
771 | 0, 0, | |
772 | pSrc->drawable.width, pSrc->drawable.height, | |
773 | -1, ZPixmap); | |
774 | ||
775 | for (j = 0; j < dmxDstScreen->beNumPixmapFormats; j++) { | |
776 | if (dmxDstScreen->bePixmapFormats[j].depth == img->depth) { | |
777 | unsigned long m; | |
778 | XGCValues v; | |
779 | ||
780 | m = GCFunction | GCPlaneMask | GCClipMask; | |
781 | v.function = GXcopy; | |
782 | v.plane_mask = AllPlanes; | |
783 | v.clip_mask = None; | |
784 | ||
785 | gc = XCreateGC(dmxDstScreen->beDisplay, | |
786 | dmxDstScreen->scrnDefDrawables[j], | |
787 | m, &v); | |
788 | break; | |
789 | } | |
790 | } | |
791 | ||
792 | if (gc) { | |
793 | XPutImage(dmxDstScreen->beDisplay, | |
794 | pDstPriv->pixmap, | |
795 | gc, img, 0, 0, 0, 0, | |
796 | pDst->drawable.width, pDst->drawable.height); | |
797 | XFreeGC(dmxDstScreen->beDisplay, gc); | |
798 | FoundPixImage = True; | |
799 | } | |
800 | else { | |
801 | dmxLog(dmxWarning, "Could not create GC\n"); | |
802 | } | |
803 | ||
804 | XDestroyImage(img); | |
805 | return; | |
806 | } | |
807 | } | |
808 | } | |
809 | } | |
810 | #endif | |
811 | ||
812 | /** Restore the pixmap image either from another screen or from an image | |
813 | * that was saved when the screen was previously detached. */ | |
814 | static void | |
815 | dmxBERestorePixmap(PixmapPtr pPixmap) | |
816 | { | |
817 | #ifdef PANORAMIX | |
818 | int i; | |
819 | ||
820 | /* If Xinerama is not active, there's nothing we can do (see comment | |
821 | * in #else below for more info). */ | |
822 | if (noPanoramiXExtension) { | |
823 | dmxLog(dmxWarning, "Cannot restore pixmap image\n"); | |
824 | return; | |
825 | } | |
826 | ||
827 | FoundPixImage = False; | |
828 | for (i = currentMaxClients; --i >= 0;) | |
829 | if (clients[i]) | |
830 | FindAllClientResources(clients[i], dmxBERestorePixmapImage, | |
831 | (pointer) pPixmap); | |
832 | ||
833 | /* No corresponding pixmap image was found on other screens, so we | |
834 | * need to copy it from the saved image when the screen was detached | |
835 | * (if available). */ | |
836 | if (!FoundPixImage) { | |
837 | dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap); | |
838 | ||
839 | if (pPixPriv->detachedImage) { | |
840 | ScreenPtr pScreen = pPixmap->drawable.pScreen; | |
841 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
842 | XlibGC gc = NULL; | |
843 | ||
844 | for (i = 0; i < dmxScreen->beNumPixmapFormats; i++) { | |
845 | if (dmxScreen->bePixmapFormats[i].depth == | |
846 | pPixPriv->detachedImage->depth) { | |
847 | unsigned long m; | |
848 | XGCValues v; | |
849 | ||
850 | m = GCFunction | GCPlaneMask | GCClipMask; | |
851 | v.function = GXcopy; | |
852 | v.plane_mask = AllPlanes; | |
853 | v.clip_mask = None; | |
854 | ||
855 | gc = XCreateGC(dmxScreen->beDisplay, | |
856 | dmxScreen->scrnDefDrawables[i], m, &v); | |
857 | break; | |
858 | } | |
859 | } | |
860 | ||
861 | if (gc) { | |
862 | XPutImage(dmxScreen->beDisplay, | |
863 | pPixPriv->pixmap, | |
864 | gc, | |
865 | pPixPriv->detachedImage, | |
866 | 0, 0, 0, 0, | |
867 | pPixmap->drawable.width, pPixmap->drawable.height); | |
868 | XFreeGC(dmxScreen->beDisplay, gc); | |
869 | } | |
870 | else { | |
871 | dmxLog(dmxWarning, "Cannot restore pixmap image\n"); | |
872 | } | |
873 | ||
874 | XDestroyImage(pPixPriv->detachedImage); | |
875 | pPixPriv->detachedImage = NULL; | |
876 | } | |
877 | else { | |
878 | dmxLog(dmxWarning, "Cannot restore pixmap image\n"); | |
879 | } | |
880 | } | |
881 | #else | |
882 | /* If Xinerama is not enabled, then there is no other copy of the | |
883 | * pixmap image that we can restore. Saving all pixmap data is not | |
884 | * a feasible option since there is no mechanism for updating pixmap | |
885 | * data when a screen is detached, which means that the data that | |
886 | * was previously saved would most likely be out of date. */ | |
887 | dmxLog(dmxWarning, "Cannot restore pixmap image\n"); | |
888 | return; | |
889 | #endif | |
890 | } | |
891 | ||
892 | /** Create resources on the back-end server. This function is called | |
893 | * from #dmxAttachScreen() via the dix layer's FindAllResources | |
894 | * function. It walks all resources, compares them to the screen | |
895 | * number passed in as \a n and calls the appropriate DMX function to | |
896 | * create the associated resource on the back-end server. */ | |
897 | static void | |
898 | dmxBECreateResources(pointer value, XID id, RESTYPE type, pointer n) | |
899 | { | |
900 | int scrnNum = (uintptr_t) n; | |
901 | ScreenPtr pScreen = screenInfo.screens[scrnNum]; | |
902 | ||
903 | if ((type & TypeMask) == (RT_WINDOW & TypeMask)) { | |
904 | /* Window resources are created below in dmxBECreateWindowTree */ | |
905 | } | |
906 | else if ((type & TypeMask) == (RT_PIXMAP & TypeMask)) { | |
907 | PixmapPtr pPix = value; | |
908 | ||
909 | if (pPix->drawable.pScreen->myNum == scrnNum) { | |
910 | dmxBECreatePixmap(pPix); | |
911 | dmxBERestorePixmap(pPix); | |
912 | } | |
913 | } | |
914 | else if ((type & TypeMask) == (RT_GC & TypeMask)) { | |
915 | GCPtr pGC = value; | |
916 | ||
917 | if (pGC->pScreen->myNum == scrnNum) { | |
918 | /* Create the GC on the back-end server */ | |
919 | dmxBECreateGC(pScreen, pGC); | |
920 | /* Create any pixmaps associated with this GC */ | |
921 | if (!pGC->tileIsPixel) { | |
922 | dmxBECreatePixmap(pGC->tile.pixmap); | |
923 | dmxBERestorePixmap(pGC->tile.pixmap); | |
924 | } | |
925 | if (pGC->stipple != pScreen->PixmapPerDepth[0]) { | |
926 | dmxBECreatePixmap(pGC->stipple); | |
927 | dmxBERestorePixmap(pGC->stipple); | |
928 | } | |
929 | if (pGC->font != defaultFont) { | |
930 | (void) dmxBELoadFont(pScreen, pGC->font); | |
931 | } | |
932 | /* Update the GC on the back-end server */ | |
933 | dmxChangeGC(pGC, -1L); | |
934 | } | |
935 | } | |
936 | else if ((type & TypeMask) == (RT_FONT & TypeMask)) { | |
937 | (void) dmxBELoadFont(pScreen, (FontPtr) value); | |
938 | } | |
939 | else if ((type & TypeMask) == (RT_CURSOR & TypeMask)) { | |
940 | dmxBECreateCursor(pScreen, (CursorPtr) value); | |
941 | } | |
942 | else if ((type & TypeMask) == (RT_COLORMAP & TypeMask)) { | |
943 | ColormapPtr pCmap = value; | |
944 | ||
945 | if (pCmap->pScreen->myNum == scrnNum) | |
946 | (void) dmxBECreateColormap((ColormapPtr) value); | |
947 | #if 0 | |
948 | /* TODO: Recreate Picture and GlyphSet resources */ | |
949 | } | |
950 | else if ((type & TypeMask) == (PictureType & TypeMask)) { | |
951 | /* Picture resources are created when windows are created */ | |
952 | } | |
953 | else if ((type & TypeMask) == (GlyphSetType & TypeMask)) { | |
954 | dmxBEFreeGlyphSet(pScreen, (GlyphSetPtr) value); | |
955 | #endif | |
956 | } | |
957 | else { | |
958 | /* Other resource types??? */ | |
959 | } | |
960 | } | |
961 | ||
962 | /** Create window hierachy on back-end server. The window tree is | |
963 | * created in a special order (bottom most subwindow first) so that the | |
964 | * #dmxCreateNonRootWindow() function does not need to recursively call | |
965 | * itself to create each window's parents. This is required so that we | |
966 | * have the opportunity to create each window's border and background | |
967 | * pixmaps (where appropriate) before the window is created. */ | |
968 | static void | |
969 | dmxBECreateWindowTree(int idx) | |
970 | { | |
971 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
972 | WindowPtr pRoot = screenInfo.screens[idx]->root; | |
973 | dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pRoot); | |
974 | WindowPtr pWin; | |
975 | ||
976 | /* Create the pixmaps associated with the root window */ | |
977 | if (!pRoot->borderIsPixel) { | |
978 | dmxBECreatePixmap(pRoot->border.pixmap); | |
979 | dmxBERestorePixmap(pRoot->border.pixmap); | |
980 | } | |
981 | if (pRoot->backgroundState == BackgroundPixmap) { | |
982 | dmxBECreatePixmap(pRoot->background.pixmap); | |
983 | dmxBERestorePixmap(pRoot->background.pixmap); | |
984 | } | |
985 | ||
986 | /* Create root window first */ | |
987 | dmxScreen->rootWin = pWinPriv->window = dmxCreateRootWindow(pRoot); | |
988 | XMapWindow(dmxScreen->beDisplay, dmxScreen->rootWin); | |
989 | ||
990 | pWin = pRoot->lastChild; | |
991 | while (pWin) { | |
992 | pWinPriv = DMX_GET_WINDOW_PRIV(pWin); | |
993 | ||
994 | /* Create the pixmaps regardless of whether or not the | |
995 | * window is created or not due to lazy window creation. | |
996 | */ | |
997 | if (!pWin->borderIsPixel) { | |
998 | dmxBECreatePixmap(pWin->border.pixmap); | |
999 | dmxBERestorePixmap(pWin->border.pixmap); | |
1000 | } | |
1001 | if (pWin->backgroundState == BackgroundPixmap) { | |
1002 | dmxBECreatePixmap(pWin->background.pixmap); | |
1003 | dmxBERestorePixmap(pWin->background.pixmap); | |
1004 | } | |
1005 | ||
1006 | /* Reset the window attributes */ | |
1007 | dmxGetDefaultWindowAttributes(pWin, &pWinPriv->cmap, &pWinPriv->visual); | |
1008 | ||
1009 | /* Create the window */ | |
1010 | if (pWinPriv->mapped && !pWinPriv->offscreen) | |
1011 | dmxCreateAndRealizeWindow(pWin, TRUE); | |
1012 | ||
1013 | /* Next, create the bottom-most child */ | |
1014 | if (pWin->lastChild) { | |
1015 | pWin = pWin->lastChild; | |
1016 | continue; | |
1017 | } | |
1018 | ||
1019 | /* If the window has no children, move on to the next higher window */ | |
1020 | while (!pWin->prevSib && (pWin != pRoot)) | |
1021 | pWin = pWin->parent; | |
1022 | ||
1023 | if (pWin->prevSib) { | |
1024 | pWin = pWin->prevSib; | |
1025 | continue; | |
1026 | } | |
1027 | ||
1028 | /* When we reach the root window, we are finished */ | |
1029 | if (pWin == pRoot) | |
1030 | break; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | /* Refresh screen by generating exposure events for all windows */ | |
1035 | static void | |
1036 | dmxForceExposures(int idx) | |
1037 | { | |
1038 | ScreenPtr pScreen = screenInfo.screens[idx]; | |
1039 | WindowPtr pRoot = pScreen->root; | |
1040 | Bool anyMarked = FALSE; | |
1041 | WindowPtr pChild; | |
1042 | ||
1043 | for (pChild = pRoot->firstChild; pChild; pChild = pChild->nextSib) | |
1044 | anyMarked |= pScreen->MarkOverlappedWindows(pChild, pChild, | |
1045 | (WindowPtr *) NULL); | |
1046 | if (anyMarked) { | |
1047 | /* If any windows have been marked, set the root window's | |
1048 | * clipList to be broken since it will be recalculated in | |
1049 | * ValidateTree() | |
1050 | */ | |
1051 | RegionBreak(&pRoot->clipList); | |
1052 | pScreen->ValidateTree(pRoot, NULL, VTBroken); | |
1053 | pScreen->HandleExposures(pRoot); | |
1054 | if (pScreen->PostValidateTree) | |
1055 | pScreen->PostValidateTree(pRoot, NULL, VTBroken); | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | /** Compare the new and old screens to see if they are compatible. */ | |
1060 | static Bool | |
1061 | dmxCompareScreens(DMXScreenInfo * new, DMXScreenInfo * old) | |
1062 | { | |
1063 | int i; | |
1064 | ||
1065 | if (new->beWidth != old->beWidth) | |
1066 | return FALSE; | |
1067 | if (new->beHeight != old->beHeight) | |
1068 | return FALSE; | |
1069 | if (new->beDepth != old->beDepth) | |
1070 | return FALSE; | |
1071 | if (new->beBPP != old->beBPP) | |
1072 | return FALSE; | |
1073 | ||
1074 | if (new->beNumDepths != old->beNumDepths) | |
1075 | return FALSE; | |
1076 | for (i = 0; i < old->beNumDepths; i++) | |
1077 | if (new->beDepths[i] != old->beDepths[i]) | |
1078 | return FALSE; | |
1079 | ||
1080 | if (new->beNumPixmapFormats != old->beNumPixmapFormats) | |
1081 | return FALSE; | |
1082 | for (i = 0; i < old->beNumPixmapFormats; i++) { | |
1083 | if (new->bePixmapFormats[i].depth != old->bePixmapFormats[i].depth) | |
1084 | return FALSE; | |
1085 | if (new->bePixmapFormats[i].bits_per_pixel != | |
1086 | old->bePixmapFormats[i].bits_per_pixel) | |
1087 | return FALSE; | |
1088 | if (new->bePixmapFormats[i].scanline_pad != | |
1089 | old->bePixmapFormats[i].scanline_pad) | |
1090 | return FALSE; | |
1091 | } | |
1092 | ||
1093 | if (new->beNumVisuals != old->beNumVisuals) | |
1094 | return FALSE; | |
1095 | for (i = 0; i < old->beNumVisuals; i++) { | |
1096 | if (new->beVisuals[i].visualid != old->beVisuals[i].visualid) | |
1097 | return FALSE; | |
1098 | if (new->beVisuals[i].screen != old->beVisuals[i].screen) | |
1099 | return FALSE; | |
1100 | if (new->beVisuals[i].depth != old->beVisuals[i].depth) | |
1101 | return FALSE; | |
1102 | if (new->beVisuals[i].class != old->beVisuals[i].class) | |
1103 | return FALSE; | |
1104 | if (new->beVisuals[i].red_mask != old->beVisuals[i].red_mask) | |
1105 | return FALSE; | |
1106 | if (new->beVisuals[i].green_mask != old->beVisuals[i].green_mask) | |
1107 | return FALSE; | |
1108 | if (new->beVisuals[i].blue_mask != old->beVisuals[i].blue_mask) | |
1109 | return FALSE; | |
1110 | if (new->beVisuals[i].colormap_size != old->beVisuals[i].colormap_size) | |
1111 | return FALSE; | |
1112 | if (new->beVisuals[i].bits_per_rgb != old->beVisuals[i].bits_per_rgb) | |
1113 | return FALSE; | |
1114 | } | |
1115 | ||
1116 | if (new->beDefVisualIndex != old->beDefVisualIndex) | |
1117 | return FALSE; | |
1118 | ||
1119 | return TRUE; | |
1120 | } | |
1121 | ||
1122 | /** Restore Render's picture */ | |
1123 | static void | |
1124 | dmxBERestoreRenderPict(pointer value, XID id, pointer n) | |
1125 | { | |
1126 | PicturePtr pPicture = value; /* The picture */ | |
1127 | DrawablePtr pDraw = pPicture->pDrawable; /* The picture's drawable */ | |
1128 | int scrnNum = (uintptr_t) n; | |
1129 | ||
1130 | if (pDraw->pScreen->myNum != scrnNum) { | |
1131 | /* Picture not on the screen we are restoring */ | |
1132 | return; | |
1133 | } | |
1134 | ||
1135 | if (pDraw->type == DRAWABLE_PIXMAP) { | |
1136 | PixmapPtr pPixmap = (PixmapPtr) pDraw; | |
1137 | ||
1138 | /* Create and restore the pixmap drawable */ | |
1139 | dmxBECreatePixmap(pPixmap); | |
1140 | dmxBERestorePixmap(pPixmap); | |
1141 | } | |
1142 | ||
1143 | dmxBECreatePicture(pPicture); | |
1144 | } | |
1145 | ||
1146 | /** Restore Render's glyphs */ | |
1147 | static void | |
1148 | dmxBERestoreRenderGlyph(pointer value, XID id, pointer n) | |
1149 | { | |
1150 | GlyphSetPtr glyphSet = value; | |
1151 | int scrnNum = (uintptr_t) n; | |
1152 | dmxGlyphPrivPtr glyphPriv = DMX_GET_GLYPH_PRIV(glyphSet); | |
1153 | DMXScreenInfo *dmxScreen = &dmxScreens[scrnNum]; | |
1154 | GlyphRefPtr table; | |
1155 | char *images; | |
1156 | Glyph *gids; | |
1157 | XGlyphInfo *glyphs; | |
1158 | char *pos; | |
1159 | int beret; | |
1160 | int len_images = 0; | |
1161 | int i; | |
1162 | int ctr; | |
1163 | ||
1164 | if (glyphPriv->glyphSets[scrnNum]) { | |
1165 | /* Only restore glyphs on the screen we are attaching */ | |
1166 | return; | |
1167 | } | |
1168 | ||
1169 | /* First we must create the glyph set on the backend. */ | |
1170 | if ((beret = dmxBECreateGlyphSet(scrnNum, glyphSet)) != Success) { | |
1171 | dmxLog(dmxWarning, | |
1172 | "\tdmxBERestoreRenderGlyph failed to create glyphset!\n"); | |
1173 | return; | |
1174 | } | |
1175 | ||
1176 | /* Now for the complex part, restore the glyph data */ | |
1177 | table = glyphSet->hash.table; | |
1178 | ||
1179 | /* We need to know how much memory to allocate for this part */ | |
1180 | for (i = 0; i < glyphSet->hash.hashSet->size; i++) { | |
1181 | GlyphRefPtr gr = &table[i]; | |
1182 | GlyphPtr gl = gr->glyph; | |
1183 | ||
1184 | if (!gl || gl == DeletedGlyph) | |
1185 | continue; | |
1186 | len_images += gl->size - sizeof(gl->info); | |
1187 | } | |
1188 | ||
1189 | /* Now allocate the memory we need */ | |
1190 | images = calloc(len_images, sizeof(char)); | |
1191 | gids = malloc(glyphSet->hash.tableEntries * sizeof(Glyph)); | |
1192 | glyphs = malloc(glyphSet->hash.tableEntries * sizeof(XGlyphInfo)); | |
1193 | ||
1194 | pos = images; | |
1195 | ctr = 0; | |
1196 | ||
1197 | /* Fill the allocated memory with the proper data */ | |
1198 | for (i = 0; i < glyphSet->hash.hashSet->size; i++) { | |
1199 | GlyphRefPtr gr = &table[i]; | |
1200 | GlyphPtr gl = gr->glyph; | |
1201 | ||
1202 | if (!gl || gl == DeletedGlyph) | |
1203 | continue; | |
1204 | ||
1205 | /* First lets put the data into gids */ | |
1206 | gids[ctr] = gr->signature; | |
1207 | ||
1208 | /* Next do the glyphs data structures */ | |
1209 | glyphs[ctr].width = gl->info.width; | |
1210 | glyphs[ctr].height = gl->info.height; | |
1211 | glyphs[ctr].x = gl->info.x; | |
1212 | glyphs[ctr].y = gl->info.y; | |
1213 | glyphs[ctr].xOff = gl->info.xOff; | |
1214 | glyphs[ctr].yOff = gl->info.yOff; | |
1215 | ||
1216 | /* Copy the images from the DIX's data into the buffer */ | |
1217 | memcpy(pos, gl + 1, gl->size - sizeof(gl->info)); | |
1218 | pos += gl->size - sizeof(gl->info); | |
1219 | ctr++; | |
1220 | } | |
1221 | ||
1222 | /* Now restore the glyph data */ | |
1223 | XRenderAddGlyphs(dmxScreen->beDisplay, glyphPriv->glyphSets[scrnNum], | |
1224 | gids, glyphs, glyphSet->hash.tableEntries, images, | |
1225 | len_images); | |
1226 | ||
1227 | /* Clean up */ | |
1228 | free(images); | |
1229 | free(gids); | |
1230 | free(glyphs); | |
1231 | } | |
1232 | ||
1233 | /** Reattach previously detached back-end screen. */ | |
1234 | int | |
1235 | dmxAttachScreen(int idx, DMXScreenAttributesPtr attr) | |
1236 | { | |
1237 | ScreenPtr pScreen; | |
1238 | DMXScreenInfo *dmxScreen; | |
1239 | CARD32 scrnNum = idx; | |
1240 | DMXScreenInfo oldDMXScreen; | |
1241 | int i; | |
1242 | ||
1243 | /* Return failure if dynamic addition/removal of screens is disabled */ | |
1244 | if (!dmxAddRemoveScreens) { | |
1245 | dmxLog(dmxWarning, | |
1246 | "Attempting to add a screen, but the AddRemoveScreen\n"); | |
1247 | dmxLog(dmxWarning, | |
1248 | "extension has not been enabled. To enable this extension\n"); | |
1249 | dmxLog(dmxWarning, | |
1250 | "add the \"-addremovescreens\" option either to the command\n"); | |
1251 | dmxLog(dmxWarning, "line or in the configuration file.\n"); | |
1252 | return 1; | |
1253 | } | |
1254 | ||
1255 | /* Cannot add a screen that does not exist */ | |
1256 | if (idx < 0 || idx >= dmxNumScreens) | |
1257 | return 1; | |
1258 | pScreen = screenInfo.screens[idx]; | |
1259 | dmxScreen = &dmxScreens[idx]; | |
1260 | ||
1261 | /* Cannot attach to a screen that is already opened */ | |
1262 | if (dmxScreen->beDisplay) { | |
1263 | dmxLog(dmxWarning, | |
1264 | "Attempting to add screen #%d but a screen already exists\n", | |
1265 | idx); | |
1266 | return 1; | |
1267 | } | |
1268 | ||
1269 | dmxLogOutput(dmxScreen, "Attaching screen #%d\n", idx); | |
1270 | ||
1271 | /* Save old info */ | |
1272 | oldDMXScreen = *dmxScreen; | |
1273 | ||
1274 | /* Copy the name to the new screen */ | |
1275 | dmxScreen->name = strdup(attr->displayName); | |
1276 | ||
1277 | /* Open display and get all of the screen info */ | |
1278 | if (!dmxOpenDisplay(dmxScreen)) { | |
1279 | dmxLog(dmxWarning, | |
1280 | "dmxOpenDisplay: Unable to open display %s\n", dmxScreen->name); | |
1281 | ||
1282 | /* Restore the old screen */ | |
1283 | *dmxScreen = oldDMXScreen; | |
1284 | return 1; | |
1285 | } | |
1286 | ||
1287 | dmxSetErrorHandler(dmxScreen); | |
1288 | dmxCheckForWM(dmxScreen); | |
1289 | dmxGetScreenAttribs(dmxScreen); | |
1290 | ||
1291 | if (!dmxGetVisualInfo(dmxScreen)) { | |
1292 | dmxLog(dmxWarning, "dmxGetVisualInfo: No matching visuals found\n"); | |
1293 | XFree(dmxScreen->beVisuals); | |
1294 | XCloseDisplay(dmxScreen->beDisplay); | |
1295 | ||
1296 | /* Restore the old screen */ | |
1297 | *dmxScreen = oldDMXScreen; | |
1298 | return 1; | |
1299 | } | |
1300 | ||
1301 | dmxGetColormaps(dmxScreen); | |
1302 | dmxGetPixmapFormats(dmxScreen); | |
1303 | ||
1304 | /* Verify that the screen to be added has the same info as the | |
1305 | * previously added screen. */ | |
1306 | if (!dmxCompareScreens(dmxScreen, &oldDMXScreen)) { | |
1307 | dmxLog(dmxWarning, | |
1308 | "New screen data (%s) does not match previously\n", | |
1309 | dmxScreen->name); | |
1310 | dmxLog(dmxWarning, "attached screen data (%s)\n", oldDMXScreen.name); | |
1311 | dmxLog(dmxWarning, | |
1312 | "All data must match in order to attach to screen #%d\n", idx); | |
1313 | XFree(dmxScreen->beVisuals); | |
1314 | XFree(dmxScreen->beDepths); | |
1315 | XFree(dmxScreen->bePixmapFormats); | |
1316 | XCloseDisplay(dmxScreen->beDisplay); | |
1317 | ||
1318 | /* Restore the old screen */ | |
1319 | *dmxScreen = oldDMXScreen; | |
1320 | return 1; | |
1321 | } | |
1322 | ||
1323 | /* Initialize the BE screen resources */ | |
1324 | dmxBEScreenInit(screenInfo.screens[idx]); | |
1325 | ||
1326 | /* TODO: Handle GLX visual initialization. GLXProxy needs to be | |
1327 | * updated to handle dynamic addition/removal of screens. */ | |
1328 | ||
1329 | /* Create default stipple */ | |
1330 | dmxBECreatePixmap(pScreen->PixmapPerDepth[0]); | |
1331 | dmxBERestorePixmap(pScreen->PixmapPerDepth[0]); | |
1332 | ||
1333 | /* Create the scratch GCs */ | |
1334 | dmxBECreateScratchGCs(idx); | |
1335 | ||
1336 | /* Create the default font */ | |
1337 | (void) dmxBELoadFont(pScreen, defaultFont); | |
1338 | ||
1339 | /* Create all resources that don't depend on windows */ | |
1340 | for (i = currentMaxClients; --i >= 0;) | |
1341 | if (clients[i]) | |
1342 | FindAllClientResources(clients[i], dmxBECreateResources, | |
1343 | (pointer) (uintptr_t) idx); | |
1344 | ||
1345 | /* Create window hierarchy (top down) */ | |
1346 | dmxBECreateWindowTree(idx); | |
1347 | ||
1348 | /* Restore the picture state for RENDER */ | |
1349 | for (i = currentMaxClients; --i >= 0;) | |
1350 | if (clients[i]) | |
1351 | FindClientResourcesByType(clients[i], PictureType, | |
1352 | dmxBERestoreRenderPict, | |
1353 | (pointer) (uintptr_t) idx); | |
1354 | ||
1355 | /* Restore the glyph state for RENDER */ | |
1356 | for (i = currentMaxClients; --i >= 0;) | |
1357 | if (clients[i]) | |
1358 | FindClientResourcesByType(clients[i], GlyphSetType, | |
1359 | dmxBERestoreRenderGlyph, | |
1360 | (pointer) (uintptr_t) idx); | |
1361 | ||
1362 | /* Refresh screen by generating exposure events for all windows */ | |
1363 | dmxForceExposures(idx); | |
1364 | ||
1365 | dmxSync(&dmxScreens[idx], TRUE); | |
1366 | ||
1367 | /* We used these to compare the old and new screens. They are no | |
1368 | * longer needed since we have a newly attached screen, so we can | |
1369 | * now free the old screen's resources. */ | |
1370 | XFree(oldDMXScreen.beVisuals); | |
1371 | XFree(oldDMXScreen.beDepths); | |
1372 | XFree(oldDMXScreen.bePixmapFormats); | |
1373 | /* TODO: should oldDMXScreen.name be freed?? */ | |
1374 | ||
1375 | #ifdef PANORAMIX | |
1376 | if (!noPanoramiXExtension) | |
1377 | return dmxConfigureScreenWindows(1, &scrnNum, attr, NULL); | |
1378 | else | |
1379 | #endif | |
1380 | return 0; /* Success */ | |
1381 | } | |
1382 | ||
1383 | /* | |
1384 | * Resources that may have state on the BE server and need to be freed: | |
1385 | * | |
1386 | * RT_NONE | |
1387 | * RT_WINDOW | |
1388 | * RT_PIXMAP | |
1389 | * RT_GC | |
1390 | * RT_FONT | |
1391 | * RT_CURSOR | |
1392 | * RT_COLORMAP | |
1393 | * RT_CMAPENTRY | |
1394 | * RT_OTHERCLIENT | |
1395 | * RT_PASSIVEGRAB | |
1396 | * XRT_WINDOW | |
1397 | * XRT_PIXMAP | |
1398 | * XRT_GC | |
1399 | * XRT_COLORMAP | |
1400 | * XRT_PICTURE | |
1401 | * PictureType | |
1402 | * PictFormatType | |
1403 | * GlyphSetType | |
1404 | * ClientType | |
1405 | * EventType | |
1406 | * RT_INPUTCLIENT | |
1407 | * XETrapType | |
1408 | * RTCounter | |
1409 | * RTAwait | |
1410 | * RTAlarmClient | |
1411 | * RT_XKBCLIENT | |
1412 | * RTContext | |
1413 | * TagResType | |
1414 | * StalledResType | |
1415 | * SecurityAuthorizationResType | |
1416 | * RTEventClient | |
1417 | * __glXContextRes | |
1418 | * __glXClientRes | |
1419 | * __glXPixmapRes | |
1420 | * __glXWindowRes | |
1421 | * __glXPbufferRes | |
1422 | */ | |
1423 | ||
1424 | #ifdef PANORAMIX | |
1425 | /** Search the Xinerama XRT_PIXMAP resources for the pixmap that needs | |
1426 | * to have its image saved. */ | |
1427 | static void | |
1428 | dmxBEFindPixmapImage(pointer value, XID id, RESTYPE type, pointer p) | |
1429 | { | |
1430 | if ((type & TypeMask) == (XRT_PIXMAP & TypeMask)) { | |
1431 | PixmapPtr pDst = (PixmapPtr) p; | |
1432 | int idx = pDst->drawable.pScreen->myNum; | |
1433 | PanoramiXRes *pXinPix = (PanoramiXRes *) value; | |
1434 | PixmapPtr pPix; | |
1435 | int i; | |
1436 | ||
1437 | dixLookupResourceByType((pointer *) &pPix, pXinPix->info[idx].id, | |
1438 | RT_PIXMAP, NullClient, DixUnknownAccess); | |
1439 | if (pPix != pDst) | |
1440 | return; /* Not a match.... Next! */ | |
1441 | ||
1442 | FOR_NSCREENS(i) { | |
1443 | PixmapPtr pSrc; | |
1444 | dmxPixPrivPtr pSrcPriv = NULL; | |
1445 | ||
1446 | if (i == idx) | |
1447 | continue; /* Self replication is bad */ | |
1448 | ||
1449 | dixLookupResourceByType((pointer *) &pSrc, pXinPix->info[i].id, | |
1450 | RT_PIXMAP, NullClient, DixUnknownAccess); | |
1451 | pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc); | |
1452 | if (pSrcPriv->pixmap) { | |
1453 | FoundPixImage = True; | |
1454 | return; | |
1455 | } | |
1456 | } | |
1457 | } | |
1458 | } | |
1459 | #endif | |
1460 | ||
1461 | /** Save the pixmap image only when there is not another screen with | |
1462 | * that pixmap from which the image can be read when the screen is | |
1463 | * reattached. To do this, we first try to find a pixmap on another | |
1464 | * screen corresponding to the one we are trying to save. If we find | |
1465 | * one, then we do not need to save the image data since during | |
1466 | * reattachment, the image data can be read from that other pixmap. | |
1467 | * However, if we do not find one, then we need to save the image data. | |
1468 | * The common case for these are for the default stipple and root | |
1469 | * tile. */ | |
1470 | static void | |
1471 | dmxBESavePixmap(PixmapPtr pPixmap) | |
1472 | { | |
1473 | #ifdef PANORAMIX | |
1474 | int i; | |
1475 | ||
1476 | /* If Xinerama is not active, there's nothing we can do (see comment | |
1477 | * in #else below for more info). */ | |
1478 | if (noPanoramiXExtension) | |
1479 | return; | |
1480 | ||
1481 | FoundPixImage = False; | |
1482 | for (i = currentMaxClients; --i >= 0;) | |
1483 | if (clients[i]) | |
1484 | FindAllClientResources(clients[i], dmxBEFindPixmapImage, | |
1485 | (pointer) pPixmap); | |
1486 | ||
1487 | /* Save the image only if there is no other screens that have a | |
1488 | * pixmap that corresponds to the one we are trying to save. */ | |
1489 | if (!FoundPixImage) { | |
1490 | dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap); | |
1491 | ||
1492 | if (!pPixPriv->detachedImage) { | |
1493 | ScreenPtr pScreen = pPixmap->drawable.pScreen; | |
1494 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
1495 | ||
1496 | pPixPriv->detachedImage = XGetImage(dmxScreen->beDisplay, | |
1497 | pPixPriv->pixmap, | |
1498 | 0, 0, | |
1499 | pPixmap->drawable.width, | |
1500 | pPixmap->drawable.height, | |
1501 | -1, ZPixmap); | |
1502 | if (!pPixPriv->detachedImage) | |
1503 | dmxLog(dmxWarning, "Cannot save pixmap image\n"); | |
1504 | } | |
1505 | } | |
1506 | #else | |
1507 | /* NOTE: The only time there is a pixmap on another screen that | |
1508 | * corresponds to the one we are trying to save is when Xinerama is | |
1509 | * active. Otherwise, the pixmap image data is only stored on a | |
1510 | * single screen, which means that once it is detached, that data is | |
1511 | * lost. We could save the data here, but then that would require | |
1512 | * us to implement the ability for Xdmx to keep the pixmap up to | |
1513 | * date while the screen is detached, which is beyond the scope of | |
1514 | * the current project. */ | |
1515 | return; | |
1516 | #endif | |
1517 | } | |
1518 | ||
1519 | /** Destroy resources on the back-end server. This function is called | |
1520 | * from #dmxDetachScreen() via the dix layer's FindAllResources | |
1521 | * function. It walks all resources, compares them to the screen | |
1522 | * number passed in as \a n and calls the appropriate DMX function to | |
1523 | * free the associated resource on the back-end server. */ | |
1524 | static void | |
1525 | dmxBEDestroyResources(pointer value, XID id, RESTYPE type, pointer n) | |
1526 | { | |
1527 | int scrnNum = (uintptr_t) n; | |
1528 | ScreenPtr pScreen = screenInfo.screens[scrnNum]; | |
1529 | ||
1530 | if ((type & TypeMask) == (RT_WINDOW & TypeMask)) { | |
1531 | /* Window resources are destroyed below in dmxBEDestroyWindowTree */ | |
1532 | } | |
1533 | else if ((type & TypeMask) == (RT_PIXMAP & TypeMask)) { | |
1534 | PixmapPtr pPix = value; | |
1535 | ||
1536 | if (pPix->drawable.pScreen->myNum == scrnNum) { | |
1537 | dmxBESavePixmap(pPix); | |
1538 | dmxBEFreePixmap(pPix); | |
1539 | } | |
1540 | } | |
1541 | else if ((type & TypeMask) == (RT_GC & TypeMask)) { | |
1542 | GCPtr pGC = value; | |
1543 | ||
1544 | if (pGC->pScreen->myNum == scrnNum) | |
1545 | dmxBEFreeGC(pGC); | |
1546 | } | |
1547 | else if ((type & TypeMask) == (RT_FONT & TypeMask)) { | |
1548 | dmxBEFreeFont(pScreen, (FontPtr) value); | |
1549 | } | |
1550 | else if ((type & TypeMask) == (RT_CURSOR & TypeMask)) { | |
1551 | dmxBEFreeCursor(pScreen, (CursorPtr) value); | |
1552 | } | |
1553 | else if ((type & TypeMask) == (RT_COLORMAP & TypeMask)) { | |
1554 | ColormapPtr pCmap = value; | |
1555 | ||
1556 | if (pCmap->pScreen->myNum == scrnNum) | |
1557 | dmxBEFreeColormap((ColormapPtr) value); | |
1558 | } | |
1559 | else if ((type & TypeMask) == (PictureType & TypeMask)) { | |
1560 | PicturePtr pPict = value; | |
1561 | ||
1562 | if (pPict->pDrawable->pScreen->myNum == scrnNum) { | |
1563 | /* Free the pixmaps on the backend if needed */ | |
1564 | if (pPict->pDrawable->type == DRAWABLE_PIXMAP) { | |
1565 | PixmapPtr pPixmap = (PixmapPtr) (pPict->pDrawable); | |
1566 | ||
1567 | dmxBESavePixmap(pPixmap); | |
1568 | dmxBEFreePixmap(pPixmap); | |
1569 | } | |
1570 | dmxBEFreePicture((PicturePtr) value); | |
1571 | } | |
1572 | } | |
1573 | else if ((type & TypeMask) == (GlyphSetType & TypeMask)) { | |
1574 | dmxBEFreeGlyphSet(pScreen, (GlyphSetPtr) value); | |
1575 | } | |
1576 | else { | |
1577 | /* Other resource types??? */ | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | /** Destroy the scratch GCs that are created per depth. */ | |
1582 | static void | |
1583 | dmxBEDestroyScratchGCs(int scrnNum) | |
1584 | { | |
1585 | ScreenPtr pScreen = screenInfo.screens[scrnNum]; | |
1586 | GCPtr *ppGC = pScreen->GCperDepth; | |
1587 | int i; | |
1588 | ||
1589 | for (i = 0; i <= pScreen->numDepths; i++) | |
1590 | dmxBEFreeGC(ppGC[i]); | |
1591 | } | |
1592 | ||
1593 | /** Destroy window hierachy on back-end server. To ensure that all | |
1594 | * XDestroyWindow() calls succeed, they must be performed in a bottom | |
1595 | * up order so that windows are not destroyed before their children. | |
1596 | * XDestroyWindow(), which is called from #dmxBEDestroyWindow(), will | |
1597 | * destroy a window as well as all of it's children. */ | |
1598 | static void | |
1599 | dmxBEDestroyWindowTree(int idx) | |
1600 | { | |
1601 | WindowPtr pWin = screenInfo.screens[idx]->root; | |
1602 | WindowPtr pChild = pWin; | |
1603 | ||
1604 | while (1) { | |
1605 | if (pChild->firstChild) { | |
1606 | pChild = pChild->firstChild; | |
1607 | continue; | |
1608 | } | |
1609 | ||
1610 | /* Destroy the window */ | |
1611 | dmxBEDestroyWindow(pChild); | |
1612 | ||
1613 | /* Make sure we destroy the window's border and background | |
1614 | * pixmaps if they exist */ | |
1615 | if (!pChild->borderIsPixel) { | |
1616 | dmxBESavePixmap(pChild->border.pixmap); | |
1617 | dmxBEFreePixmap(pChild->border.pixmap); | |
1618 | } | |
1619 | if (pChild->backgroundState == BackgroundPixmap) { | |
1620 | dmxBESavePixmap(pChild->background.pixmap); | |
1621 | dmxBEFreePixmap(pChild->background.pixmap); | |
1622 | } | |
1623 | ||
1624 | while (!pChild->nextSib && (pChild != pWin)) { | |
1625 | pChild = pChild->parent; | |
1626 | dmxBEDestroyWindow(pChild); | |
1627 | if (!pChild->borderIsPixel) { | |
1628 | dmxBESavePixmap(pChild->border.pixmap); | |
1629 | dmxBEFreePixmap(pChild->border.pixmap); | |
1630 | } | |
1631 | if (pChild->backgroundState == BackgroundPixmap) { | |
1632 | dmxBESavePixmap(pChild->background.pixmap); | |
1633 | dmxBEFreePixmap(pChild->background.pixmap); | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | if (pChild == pWin) | |
1638 | break; | |
1639 | ||
1640 | pChild = pChild->nextSib; | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | /** Detach back-end screen. */ | |
1645 | int | |
1646 | dmxDetachScreen(int idx) | |
1647 | { | |
1648 | DMXScreenInfo *dmxScreen = &dmxScreens[idx]; | |
1649 | int i; | |
1650 | ||
1651 | /* Return failure if dynamic addition/removal of screens is disabled */ | |
1652 | if (!dmxAddRemoveScreens) { | |
1653 | dmxLog(dmxWarning, | |
1654 | "Attempting to remove a screen, but the AddRemoveScreen\n"); | |
1655 | dmxLog(dmxWarning, | |
1656 | "extension has not been enabled. To enable this extension\n"); | |
1657 | dmxLog(dmxWarning, | |
1658 | "add the \"-addremovescreens\" option either to the command\n"); | |
1659 | dmxLog(dmxWarning, "line or in the configuration file.\n"); | |
1660 | return 1; | |
1661 | } | |
1662 | ||
1663 | /* Cannot remove a screen that does not exist */ | |
1664 | if (idx < 0 || idx >= dmxNumScreens) | |
1665 | return 1; | |
1666 | ||
1667 | /* Cannot detach from a screen that is not opened */ | |
1668 | if (!dmxScreen->beDisplay) { | |
1669 | dmxLog(dmxWarning, | |
1670 | "Attempting to remove screen #%d but it has not been opened\n", | |
1671 | idx); | |
1672 | return 1; | |
1673 | } | |
1674 | ||
1675 | dmxLogOutput(dmxScreen, "Detaching screen #%d\n", idx); | |
1676 | ||
1677 | /* Detach input */ | |
1678 | dmxInputDetachAll(dmxScreen); | |
1679 | ||
1680 | /* Save all relevant state (TODO) */ | |
1681 | ||
1682 | /* Free all non-window resources related to this screen */ | |
1683 | for (i = currentMaxClients; --i >= 0;) | |
1684 | if (clients[i]) | |
1685 | FindAllClientResources(clients[i], dmxBEDestroyResources, | |
1686 | (pointer) (uintptr_t) idx); | |
1687 | ||
1688 | /* Free scratch GCs */ | |
1689 | dmxBEDestroyScratchGCs(idx); | |
1690 | ||
1691 | /* Free window resources related to this screen */ | |
1692 | dmxBEDestroyWindowTree(idx); | |
1693 | ||
1694 | /* Free default stipple */ | |
1695 | dmxBESavePixmap(screenInfo.screens[idx]->PixmapPerDepth[0]); | |
1696 | dmxBEFreePixmap(screenInfo.screens[idx]->PixmapPerDepth[0]); | |
1697 | ||
1698 | /* Free the remaining screen resources and close the screen */ | |
1699 | dmxBECloseScreen(screenInfo.screens[idx]); | |
1700 | ||
1701 | /* Adjust the cursor boundaries (paints detached console window) */ | |
1702 | dmxAdjustCursorBoundaries(); | |
1703 | ||
1704 | return 0; /* Success */ | |
1705 | } |