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a09e091a JB |
1 | /* |
2 | * Copyright © 2008 Red Hat, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Soft- | |
6 | * ware"), to deal in the Software without restriction, including without | |
7 | * limitation the rights to use, copy, modify, merge, publish, distribute, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, provided that the above copyright | |
10 | * notice(s) and this permission notice appear in all copies of the Soft- | |
11 | * ware and that both the above copyright notice(s) and this permission | |
12 | * notice appear in supporting documentation. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- | |
16 | * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY | |
17 | * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN | |
18 | * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- | |
19 | * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- | |
22 | * MANCE OF THIS SOFTWARE. | |
23 | * | |
24 | * Except as contained in this notice, the name of a copyright holder shall | |
25 | * not be used in advertising or otherwise to promote the sale, use or | |
26 | * other dealings in this Software without prior written authorization of | |
27 | * the copyright holder. | |
28 | * | |
29 | * Authors: | |
30 | * Kristian Høgsberg (krh@redhat.com) | |
31 | */ | |
32 | ||
33 | #ifdef HAVE_XORG_CONFIG_H | |
34 | #include <xorg-config.h> | |
35 | #endif | |
36 | ||
37 | #include <X11/X.h> | |
38 | #include <X11/Xproto.h> | |
39 | #include <X11/extensions/dri2proto.h> | |
40 | #include <X11/extensions/xfixeswire.h> | |
41 | #include "dixstruct.h" | |
42 | #include "scrnintstr.h" | |
43 | #include "pixmapstr.h" | |
44 | #include "extnsionst.h" | |
45 | #include "xfixes.h" | |
46 | #include "dri2.h" | |
47 | #include "dri2int.h" | |
48 | #include "protocol-versions.h" | |
49 | ||
50 | /* The only xf86 includes */ | |
51 | #include "xf86Module.h" | |
52 | #include "xf86Extensions.h" | |
53 | ||
54 | static int DRI2EventBase; | |
55 | ||
56 | ||
57 | static Bool | |
58 | validDrawable(ClientPtr client, XID drawable, Mask access_mode, | |
59 | DrawablePtr *pDrawable, int *status) | |
60 | { | |
61 | *status = dixLookupDrawable(pDrawable, drawable, client, | |
62 | M_DRAWABLE_WINDOW | M_DRAWABLE_PIXMAP, | |
63 | access_mode); | |
64 | if (*status != Success) { | |
65 | client->errorValue = drawable; | |
66 | return FALSE; | |
67 | } | |
68 | ||
69 | return TRUE; | |
70 | } | |
71 | ||
72 | static int | |
73 | ProcDRI2QueryVersion(ClientPtr client) | |
74 | { | |
75 | REQUEST(xDRI2QueryVersionReq); | |
76 | xDRI2QueryVersionReply rep = { | |
77 | .type = X_Reply, | |
78 | .sequenceNumber = client->sequence, | |
79 | .length = 0, | |
80 | .majorVersion = dri2_major, | |
81 | .minorVersion = dri2_minor | |
82 | }; | |
83 | ||
84 | if (client->swapped) | |
85 | swaps(&stuff->length); | |
86 | ||
87 | REQUEST_SIZE_MATCH(xDRI2QueryVersionReq); | |
88 | ||
89 | if (client->swapped) { | |
90 | swaps(&rep.sequenceNumber); | |
91 | swapl(&rep.length); | |
92 | swapl(&rep.majorVersion); | |
93 | swapl(&rep.minorVersion); | |
94 | } | |
95 | ||
96 | WriteToClient(client, sizeof(xDRI2QueryVersionReply), &rep); | |
97 | ||
98 | return Success; | |
99 | } | |
100 | ||
101 | static int | |
102 | ProcDRI2Connect(ClientPtr client) | |
103 | { | |
104 | REQUEST(xDRI2ConnectReq); | |
105 | xDRI2ConnectReply rep = { | |
106 | .type = X_Reply, | |
107 | .sequenceNumber = client->sequence, | |
108 | .length = 0, | |
109 | .driverNameLength = 0, | |
110 | .deviceNameLength = 0 | |
111 | }; | |
112 | DrawablePtr pDraw; | |
113 | int fd, status; | |
114 | const char *driverName; | |
115 | const char *deviceName; | |
116 | ||
117 | REQUEST_SIZE_MATCH(xDRI2ConnectReq); | |
118 | if (!validDrawable(client, stuff->window, DixGetAttrAccess, | |
119 | &pDraw, &status)) | |
120 | return status; | |
121 | ||
122 | if (!DRI2Connect(client, pDraw->pScreen, | |
123 | stuff->driverType, &fd, &driverName, &deviceName)) | |
124 | goto fail; | |
125 | ||
126 | rep.driverNameLength = strlen(driverName); | |
127 | rep.deviceNameLength = strlen(deviceName); | |
128 | rep.length = (rep.driverNameLength + 3) / 4 + | |
129 | (rep.deviceNameLength + 3) / 4; | |
130 | ||
131 | fail: | |
132 | WriteToClient(client, sizeof(xDRI2ConnectReply), &rep); | |
133 | WriteToClient(client, rep.driverNameLength, driverName); | |
134 | WriteToClient(client, rep.deviceNameLength, deviceName); | |
135 | ||
136 | return Success; | |
137 | } | |
138 | ||
139 | static int | |
140 | ProcDRI2Authenticate(ClientPtr client) | |
141 | { | |
142 | REQUEST(xDRI2AuthenticateReq); | |
143 | xDRI2AuthenticateReply rep; | |
144 | DrawablePtr pDraw; | |
145 | int status; | |
146 | ||
147 | REQUEST_SIZE_MATCH(xDRI2AuthenticateReq); | |
148 | if (!validDrawable(client, stuff->window, DixGetAttrAccess, | |
149 | &pDraw, &status)) | |
150 | return status; | |
151 | ||
152 | rep = (xDRI2AuthenticateReply) { | |
153 | .type = X_Reply, | |
154 | .sequenceNumber = client->sequence, | |
155 | .length = 0, | |
156 | .authenticated = DRI2Authenticate(client, pDraw->pScreen, stuff->magic) | |
157 | }; | |
158 | WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep); | |
159 | ||
160 | return Success; | |
161 | } | |
162 | ||
163 | static void | |
164 | DRI2InvalidateBuffersEvent(DrawablePtr pDraw, void *priv, XID id) | |
165 | { | |
166 | ClientPtr client = priv; | |
167 | xDRI2InvalidateBuffers event = { | |
168 | .type = DRI2EventBase + DRI2_InvalidateBuffers, | |
169 | .drawable = id | |
170 | }; | |
171 | ||
172 | WriteEventsToClient(client, 1, (xEvent *) &event); | |
173 | } | |
174 | ||
175 | static int | |
176 | ProcDRI2CreateDrawable(ClientPtr client) | |
177 | { | |
178 | REQUEST(xDRI2CreateDrawableReq); | |
179 | DrawablePtr pDrawable; | |
180 | int status; | |
181 | ||
182 | REQUEST_SIZE_MATCH(xDRI2CreateDrawableReq); | |
183 | ||
184 | if (!validDrawable(client, stuff->drawable, DixAddAccess, | |
185 | &pDrawable, &status)) | |
186 | return status; | |
187 | ||
188 | status = DRI2CreateDrawable(client, pDrawable, stuff->drawable, | |
189 | DRI2InvalidateBuffersEvent, client); | |
190 | if (status != Success) | |
191 | return status; | |
192 | ||
193 | return Success; | |
194 | } | |
195 | ||
196 | static int | |
197 | ProcDRI2DestroyDrawable(ClientPtr client) | |
198 | { | |
199 | REQUEST(xDRI2DestroyDrawableReq); | |
200 | DrawablePtr pDrawable; | |
201 | int status; | |
202 | ||
203 | REQUEST_SIZE_MATCH(xDRI2DestroyDrawableReq); | |
204 | if (!validDrawable(client, stuff->drawable, DixRemoveAccess, | |
205 | &pDrawable, &status)) | |
206 | return status; | |
207 | ||
208 | return Success; | |
209 | } | |
210 | ||
211 | static int | |
212 | send_buffers_reply(ClientPtr client, DrawablePtr pDrawable, | |
213 | DRI2BufferPtr * buffers, int count, int width, int height) | |
214 | { | |
215 | xDRI2GetBuffersReply rep; | |
216 | int skip = 0; | |
217 | int i; | |
218 | ||
219 | if (buffers == NULL) | |
220 | return BadAlloc; | |
221 | ||
222 | if (pDrawable->type == DRAWABLE_WINDOW) { | |
223 | for (i = 0; i < count; i++) { | |
224 | /* Do not send the real front buffer of a window to the client. | |
225 | */ | |
226 | if (buffers[i]->attachment == DRI2BufferFrontLeft) { | |
227 | skip++; | |
228 | continue; | |
229 | } | |
230 | } | |
231 | } | |
232 | ||
233 | rep = (xDRI2GetBuffersReply) { | |
234 | .type = X_Reply, | |
235 | .sequenceNumber = client->sequence, | |
236 | .length = (count - skip) * sizeof(xDRI2Buffer) / 4, | |
237 | .width = width, | |
238 | .height = height, | |
239 | .count = count - skip | |
240 | }; | |
241 | WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep); | |
242 | ||
243 | for (i = 0; i < count; i++) { | |
244 | xDRI2Buffer buffer; | |
245 | ||
246 | /* Do not send the real front buffer of a window to the client. | |
247 | */ | |
248 | if ((pDrawable->type == DRAWABLE_WINDOW) | |
249 | && (buffers[i]->attachment == DRI2BufferFrontLeft)) { | |
250 | continue; | |
251 | } | |
252 | ||
253 | buffer.attachment = buffers[i]->attachment; | |
254 | buffer.name = buffers[i]->name; | |
255 | buffer.pitch = buffers[i]->pitch; | |
256 | buffer.cpp = buffers[i]->cpp; | |
257 | buffer.flags = buffers[i]->flags; | |
258 | WriteToClient(client, sizeof(xDRI2Buffer), &buffer); | |
259 | } | |
260 | return Success; | |
261 | } | |
262 | ||
263 | static int | |
264 | ProcDRI2GetBuffers(ClientPtr client) | |
265 | { | |
266 | REQUEST(xDRI2GetBuffersReq); | |
267 | DrawablePtr pDrawable; | |
268 | DRI2BufferPtr *buffers; | |
269 | int status, width, height, count; | |
270 | unsigned int *attachments; | |
271 | ||
272 | REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4); | |
273 | if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, | |
274 | &pDrawable, &status)) | |
275 | return status; | |
276 | ||
277 | if (DRI2ThrottleClient(client, pDrawable)) | |
278 | return Success; | |
279 | ||
280 | attachments = (unsigned int *) &stuff[1]; | |
281 | buffers = DRI2GetBuffers(pDrawable, &width, &height, | |
282 | attachments, stuff->count, &count); | |
283 | ||
284 | return send_buffers_reply(client, pDrawable, buffers, count, width, height); | |
285 | ||
286 | } | |
287 | ||
288 | static int | |
289 | ProcDRI2GetBuffersWithFormat(ClientPtr client) | |
290 | { | |
291 | REQUEST(xDRI2GetBuffersReq); | |
292 | DrawablePtr pDrawable; | |
293 | DRI2BufferPtr *buffers; | |
294 | int status, width, height, count; | |
295 | unsigned int *attachments; | |
296 | ||
297 | REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * (2 * 4)); | |
298 | if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, | |
299 | &pDrawable, &status)) | |
300 | return status; | |
301 | ||
302 | if (DRI2ThrottleClient(client, pDrawable)) | |
303 | return Success; | |
304 | ||
305 | attachments = (unsigned int *) &stuff[1]; | |
306 | buffers = DRI2GetBuffersWithFormat(pDrawable, &width, &height, | |
307 | attachments, stuff->count, &count); | |
308 | ||
309 | return send_buffers_reply(client, pDrawable, buffers, count, width, height); | |
310 | } | |
311 | ||
312 | static int | |
313 | ProcDRI2CopyRegion(ClientPtr client) | |
314 | { | |
315 | REQUEST(xDRI2CopyRegionReq); | |
316 | xDRI2CopyRegionReply rep; | |
317 | DrawablePtr pDrawable; | |
318 | int status; | |
319 | RegionPtr pRegion; | |
320 | ||
321 | REQUEST_SIZE_MATCH(xDRI2CopyRegionReq); | |
322 | ||
323 | if (!validDrawable(client, stuff->drawable, DixWriteAccess, | |
324 | &pDrawable, &status)) | |
325 | return status; | |
326 | ||
327 | VERIFY_REGION(pRegion, stuff->region, client, DixReadAccess); | |
328 | ||
329 | status = DRI2CopyRegion(pDrawable, pRegion, stuff->dest, stuff->src); | |
330 | if (status != Success) | |
331 | return status; | |
332 | ||
333 | /* CopyRegion needs to be a round trip to make sure the X server | |
334 | * queues the swap buffer rendering commands before the DRI client | |
335 | * continues rendering. The reply has a bitmask to signal the | |
336 | * presense of optional return values as well, but we're not using | |
337 | * that yet. | |
338 | */ | |
339 | ||
340 | rep = (xDRI2CopyRegionReply) { | |
341 | .type = X_Reply, | |
342 | .sequenceNumber = client->sequence, | |
343 | .length = 0 | |
344 | }; | |
345 | ||
346 | WriteToClient(client, sizeof(xDRI2CopyRegionReply), &rep); | |
347 | ||
348 | return Success; | |
349 | } | |
350 | ||
351 | static void | |
352 | load_swap_reply(xDRI2SwapBuffersReply * rep, CARD64 sbc) | |
353 | { | |
354 | rep->swap_hi = sbc >> 32; | |
355 | rep->swap_lo = sbc & 0xffffffff; | |
356 | } | |
357 | ||
358 | static CARD64 | |
359 | vals_to_card64(CARD32 lo, CARD32 hi) | |
360 | { | |
361 | return (CARD64) hi << 32 | lo; | |
362 | } | |
363 | ||
364 | static void | |
365 | DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc, | |
366 | CARD32 sbc) | |
367 | { | |
368 | DrawablePtr pDrawable = data; | |
369 | xDRI2BufferSwapComplete2 event = { | |
370 | .type = DRI2EventBase + DRI2_BufferSwapComplete, | |
371 | .event_type = type, | |
372 | .drawable = pDrawable->id, | |
373 | .ust_hi = (CARD64) ust >> 32, | |
374 | .ust_lo = ust & 0xffffffff, | |
375 | .msc_hi = (CARD64) msc >> 32, | |
376 | .msc_lo = msc & 0xffffffff, | |
377 | .sbc = sbc | |
378 | }; | |
379 | ||
380 | WriteEventsToClient(client, 1, (xEvent *) &event); | |
381 | } | |
382 | ||
383 | static int | |
384 | ProcDRI2SwapBuffers(ClientPtr client) | |
385 | { | |
386 | REQUEST(xDRI2SwapBuffersReq); | |
387 | xDRI2SwapBuffersReply rep = { | |
388 | .type = X_Reply, | |
389 | .sequenceNumber = client->sequence, | |
390 | .length = 0 | |
391 | }; | |
392 | DrawablePtr pDrawable; | |
393 | CARD64 target_msc, divisor, remainder, swap_target; | |
394 | int status; | |
395 | ||
396 | REQUEST_SIZE_MATCH(xDRI2SwapBuffersReq); | |
397 | ||
398 | if (!validDrawable(client, stuff->drawable, | |
399 | DixReadAccess | DixWriteAccess, &pDrawable, &status)) | |
400 | return status; | |
401 | ||
402 | /* | |
403 | * Ensures an out of control client can't exhaust our swap queue, and | |
404 | * also orders swaps. | |
405 | */ | |
406 | if (DRI2ThrottleClient(client, pDrawable)) | |
407 | return Success; | |
408 | ||
409 | target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi); | |
410 | divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi); | |
411 | remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi); | |
412 | ||
413 | status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder, | |
414 | &swap_target, DRI2SwapEvent, pDrawable); | |
415 | if (status != Success) | |
416 | return BadDrawable; | |
417 | ||
418 | load_swap_reply(&rep, swap_target); | |
419 | ||
420 | WriteToClient(client, sizeof(xDRI2SwapBuffersReply), &rep); | |
421 | ||
422 | return Success; | |
423 | } | |
424 | ||
425 | static void | |
426 | load_msc_reply(xDRI2MSCReply * rep, CARD64 ust, CARD64 msc, CARD64 sbc) | |
427 | { | |
428 | rep->ust_hi = ust >> 32; | |
429 | rep->ust_lo = ust & 0xffffffff; | |
430 | rep->msc_hi = msc >> 32; | |
431 | rep->msc_lo = msc & 0xffffffff; | |
432 | rep->sbc_hi = sbc >> 32; | |
433 | rep->sbc_lo = sbc & 0xffffffff; | |
434 | } | |
435 | ||
436 | static int | |
437 | ProcDRI2GetMSC(ClientPtr client) | |
438 | { | |
439 | REQUEST(xDRI2GetMSCReq); | |
440 | xDRI2MSCReply rep = { | |
441 | .type = X_Reply, | |
442 | .sequenceNumber = client->sequence, | |
443 | .length = 0 | |
444 | }; | |
445 | DrawablePtr pDrawable; | |
446 | CARD64 ust, msc, sbc; | |
447 | int status; | |
448 | ||
449 | REQUEST_SIZE_MATCH(xDRI2GetMSCReq); | |
450 | ||
451 | if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, | |
452 | &status)) | |
453 | return status; | |
454 | ||
455 | status = DRI2GetMSC(pDrawable, &ust, &msc, &sbc); | |
456 | if (status != Success) | |
457 | return status; | |
458 | ||
459 | load_msc_reply(&rep, ust, msc, sbc); | |
460 | ||
461 | WriteToClient(client, sizeof(xDRI2MSCReply), &rep); | |
462 | ||
463 | return Success; | |
464 | } | |
465 | ||
466 | static int | |
467 | ProcDRI2WaitMSC(ClientPtr client) | |
468 | { | |
469 | REQUEST(xDRI2WaitMSCReq); | |
470 | DrawablePtr pDrawable; | |
471 | CARD64 target, divisor, remainder; | |
472 | int status; | |
473 | ||
474 | /* FIXME: in restart case, client may be gone at this point */ | |
475 | ||
476 | REQUEST_SIZE_MATCH(xDRI2WaitMSCReq); | |
477 | ||
478 | if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, | |
479 | &status)) | |
480 | return status; | |
481 | ||
482 | target = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi); | |
483 | divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi); | |
484 | remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi); | |
485 | ||
486 | status = DRI2WaitMSC(client, pDrawable, target, divisor, remainder); | |
487 | if (status != Success) | |
488 | return status; | |
489 | ||
490 | return Success; | |
491 | } | |
492 | ||
493 | int | |
494 | ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, CARD64 msc, CARD64 sbc) | |
495 | { | |
496 | xDRI2MSCReply rep = { | |
497 | .type = X_Reply, | |
498 | .sequenceNumber = client->sequence, | |
499 | .length = 0 | |
500 | }; | |
501 | ||
502 | load_msc_reply(&rep, ust, msc, sbc); | |
503 | ||
504 | WriteToClient(client, sizeof(xDRI2MSCReply), &rep); | |
505 | ||
506 | return Success; | |
507 | } | |
508 | ||
509 | static int | |
510 | ProcDRI2SwapInterval(ClientPtr client) | |
511 | { | |
512 | REQUEST(xDRI2SwapIntervalReq); | |
513 | DrawablePtr pDrawable; | |
514 | int status; | |
515 | ||
516 | /* FIXME: in restart case, client may be gone at this point */ | |
517 | ||
518 | REQUEST_SIZE_MATCH(xDRI2SwapIntervalReq); | |
519 | ||
520 | if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, | |
521 | &pDrawable, &status)) | |
522 | return status; | |
523 | ||
524 | DRI2SwapInterval(pDrawable, stuff->interval); | |
525 | ||
526 | return Success; | |
527 | } | |
528 | ||
529 | static int | |
530 | ProcDRI2WaitSBC(ClientPtr client) | |
531 | { | |
532 | REQUEST(xDRI2WaitSBCReq); | |
533 | DrawablePtr pDrawable; | |
534 | CARD64 target; | |
535 | int status; | |
536 | ||
537 | REQUEST_SIZE_MATCH(xDRI2WaitSBCReq); | |
538 | ||
539 | if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, | |
540 | &status)) | |
541 | return status; | |
542 | ||
543 | target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi); | |
544 | status = DRI2WaitSBC(client, pDrawable, target); | |
545 | ||
546 | return status; | |
547 | } | |
548 | ||
549 | static int | |
550 | ProcDRI2GetParam(ClientPtr client) | |
551 | { | |
552 | REQUEST(xDRI2GetParamReq); | |
553 | xDRI2GetParamReply rep = { | |
554 | .type = X_Reply, | |
555 | .sequenceNumber = client->sequence, | |
556 | .length = 0 | |
557 | }; | |
558 | DrawablePtr pDrawable; | |
559 | CARD64 value; | |
560 | int status; | |
561 | ||
562 | REQUEST_SIZE_MATCH(xDRI2GetParamReq); | |
563 | ||
564 | if (!validDrawable(client, stuff->drawable, DixReadAccess, | |
565 | &pDrawable, &status)) | |
566 | return status; | |
567 | ||
568 | status = DRI2GetParam(client, pDrawable, stuff->param, | |
569 | &rep.is_param_recognized, &value); | |
570 | rep.value_hi = value >> 32; | |
571 | rep.value_lo = value & 0xffffffff; | |
572 | ||
573 | if (status != Success) | |
574 | return status; | |
575 | ||
576 | WriteToClient(client, sizeof(xDRI2GetParamReply), &rep); | |
577 | ||
578 | return status; | |
579 | } | |
580 | ||
581 | static int | |
582 | ProcDRI2Dispatch(ClientPtr client) | |
583 | { | |
584 | REQUEST(xReq); | |
585 | ||
586 | switch (stuff->data) { | |
587 | case X_DRI2QueryVersion: | |
588 | return ProcDRI2QueryVersion(client); | |
589 | } | |
590 | ||
591 | if (!client->local) | |
592 | return BadRequest; | |
593 | ||
594 | switch (stuff->data) { | |
595 | case X_DRI2Connect: | |
596 | return ProcDRI2Connect(client); | |
597 | case X_DRI2Authenticate: | |
598 | return ProcDRI2Authenticate(client); | |
599 | case X_DRI2CreateDrawable: | |
600 | return ProcDRI2CreateDrawable(client); | |
601 | case X_DRI2DestroyDrawable: | |
602 | return ProcDRI2DestroyDrawable(client); | |
603 | case X_DRI2GetBuffers: | |
604 | return ProcDRI2GetBuffers(client); | |
605 | case X_DRI2CopyRegion: | |
606 | return ProcDRI2CopyRegion(client); | |
607 | case X_DRI2GetBuffersWithFormat: | |
608 | return ProcDRI2GetBuffersWithFormat(client); | |
609 | case X_DRI2SwapBuffers: | |
610 | return ProcDRI2SwapBuffers(client); | |
611 | case X_DRI2GetMSC: | |
612 | return ProcDRI2GetMSC(client); | |
613 | case X_DRI2WaitMSC: | |
614 | return ProcDRI2WaitMSC(client); | |
615 | case X_DRI2WaitSBC: | |
616 | return ProcDRI2WaitSBC(client); | |
617 | case X_DRI2SwapInterval: | |
618 | return ProcDRI2SwapInterval(client); | |
619 | case X_DRI2GetParam: | |
620 | return ProcDRI2GetParam(client); | |
621 | default: | |
622 | return BadRequest; | |
623 | } | |
624 | } | |
625 | ||
626 | static int | |
627 | SProcDRI2Connect(ClientPtr client) | |
628 | { | |
629 | REQUEST(xDRI2ConnectReq); | |
630 | xDRI2ConnectReply rep = { | |
631 | .type = X_Reply, | |
632 | .sequenceNumber = client->sequence, | |
633 | .length = 0, | |
634 | .driverNameLength = 0, | |
635 | .deviceNameLength = 0 | |
636 | }; | |
637 | ||
638 | /* If the client is swapped, it's not local. Talk to the hand. */ | |
639 | ||
640 | swaps(&stuff->length); | |
641 | if (sizeof(*stuff) / 4 != client->req_len) | |
642 | return BadLength; | |
643 | ||
644 | swaps(&rep.sequenceNumber); | |
645 | ||
646 | WriteToClient(client, sizeof(xDRI2ConnectReply), &rep); | |
647 | ||
648 | return Success; | |
649 | } | |
650 | ||
651 | static int | |
652 | SProcDRI2Dispatch(ClientPtr client) | |
653 | { | |
654 | REQUEST(xReq); | |
655 | ||
656 | /* | |
657 | * Only local clients are allowed DRI access, but remote clients | |
658 | * still need these requests to find out cleanly. | |
659 | */ | |
660 | switch (stuff->data) { | |
661 | case X_DRI2QueryVersion: | |
662 | return ProcDRI2QueryVersion(client); | |
663 | case X_DRI2Connect: | |
664 | return SProcDRI2Connect(client); | |
665 | default: | |
666 | return BadRequest; | |
667 | } | |
668 | } | |
669 | ||
670 | void | |
671 | DRI2ExtensionInit(void) | |
672 | { | |
673 | ExtensionEntry *dri2Extension; | |
674 | ||
675 | #ifdef PANORAMIX | |
676 | if (!noPanoramiXExtension) | |
677 | return; | |
678 | #endif | |
679 | ||
680 | dri2Extension = AddExtension(DRI2_NAME, | |
681 | DRI2NumberEvents, | |
682 | DRI2NumberErrors, | |
683 | ProcDRI2Dispatch, | |
684 | SProcDRI2Dispatch, NULL, StandardMinorOpcode); | |
685 | ||
686 | DRI2EventBase = dri2Extension->eventBase; | |
687 | ||
688 | DRI2ModuleSetup(); | |
689 | } |