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
34 #ifdef GLX_DIRECT_RENDERING
35
36 #include <stdio.h>
37 #include <X11/Xlibint.h>
38 #include <X11/extensions/Xext.h>
39 #include <X11/extensions/extutil.h>
40 #include <X11/extensions/dri2proto.h>
41 #include "dri2.h"
42 #include "glxclient.h"
43 #include "GL/glxext.h"
44
45 /* Allow the build to work with an older versions of dri2proto.h and
46 * dri2tokens.h.
47 */
48 #if DRI2_MINOR < 1
49 #undef DRI2_MINOR
50 #define DRI2_MINOR 1
51 #define X_DRI2GetBuffersWithFormat 7
52 #endif
53
54
55 static char dri2ExtensionName[] = DRI2_NAME;
56 static XExtensionInfo _dri2Info_data;
57 static XExtensionInfo *dri2Info = &_dri2Info_data;
58 static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info)
59
60 static Bool
61 DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire);
62 static Status
63 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire);
64 static int
65 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code);
66
67 static /* const */ XExtensionHooks dri2ExtensionHooks = {
68 NULL, /* create_gc */
69 NULL, /* copy_gc */
70 NULL, /* flush_gc */
71 NULL, /* free_gc */
72 NULL, /* create_font */
73 NULL, /* free_font */
74 DRI2CloseDisplay, /* close_display */
75 DRI2WireToEvent, /* wire_to_event */
76 DRI2EventToWire, /* event_to_wire */
77 DRI2Error, /* error */
78 NULL, /* error_string */
79 };
80
81 static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay,
82 dri2Info,
83 dri2ExtensionName,
84 &dri2ExtensionHooks,
85 0, NULL)
86
87 static Bool
DRI2WireToEvent(Display * dpy,XEvent * event,xEvent * wire)88 DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
89 {
90 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
91 struct glx_drawable *glxDraw;
92
93 XextCheckExtension(dpy, info, dri2ExtensionName, False);
94
95 switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
96
97 case DRI2_BufferSwapComplete:
98 {
99 GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
100 xDRI2BufferSwapComplete2 *awire = (xDRI2BufferSwapComplete2 *)wire;
101 __GLXDRIdrawable *pdraw;
102
103 pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, awire->drawable);
104 if (pdraw == NULL)
105 return False;
106
107 /* Ignore swap events if we're not looking for them */
108 aevent->type = dri2GetSwapEventType(dpy, awire->drawable);
109 if(!aevent->type)
110 return False;
111
112 aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
113 aevent->send_event = (awire->type & 0x80) != 0;
114 aevent->display = dpy;
115 aevent->drawable = awire->drawable;
116 switch (awire->event_type) {
117 case DRI2_EXCHANGE_COMPLETE:
118 aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
119 break;
120 case DRI2_BLIT_COMPLETE:
121 aevent->event_type = GLX_COPY_COMPLETE_INTEL;
122 break;
123 case DRI2_FLIP_COMPLETE:
124 aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
125 break;
126 default:
127 /* unknown swap completion type */
128 return False;
129 }
130 aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
131 aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
132
133 glxDraw = GetGLXDrawable(dpy, pdraw->drawable);
134 if (glxDraw != NULL) {
135 if (awire->sbc < glxDraw->lastEventSbc)
136 glxDraw->eventSbcWrap += 0x100000000;
137 glxDraw->lastEventSbc = awire->sbc;
138 aevent->sbc = awire->sbc + glxDraw->eventSbcWrap;
139 } else {
140 aevent->sbc = awire->sbc;
141 }
142
143 return True;
144 }
145 case DRI2_InvalidateBuffers:
146 {
147 xDRI2InvalidateBuffers *awire = (xDRI2InvalidateBuffers *)wire;
148
149 dri2InvalidateBuffers(dpy, awire->drawable);
150 return False;
151 }
152 default:
153 /* client doesn't support server event */
154 break;
155 }
156
157 return False;
158 }
159
160 /* We don't actually support this. It doesn't make sense for clients to
161 * send each other DRI2 events.
162 */
163 static Status
DRI2EventToWire(Display * dpy,XEvent * event,xEvent * wire)164 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
165 {
166 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
167
168 XextCheckExtension(dpy, info, dri2ExtensionName, False);
169
170 switch (event->type) {
171 default:
172 /* client doesn't support server event */
173 break;
174 }
175
176 return Success;
177 }
178
179 static int
DRI2Error(Display * display,xError * err,XExtCodes * codes,int * ret_code)180 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code)
181 {
182 if (err->majorCode == codes->major_opcode &&
183 err->errorCode == BadDrawable &&
184 err->minorCode == X_DRI2CopyRegion)
185 return True;
186
187 /* If the X drawable was destroyed before the GLX drawable, the
188 * DRI2 drawble will be gone by the time we call
189 * DRI2DestroyDrawable. So just ignore BadDrawable here. */
190 if (err->majorCode == codes->major_opcode &&
191 err->errorCode == BadDrawable &&
192 err->minorCode == X_DRI2DestroyDrawable)
193 return True;
194
195 /* If the server is non-local DRI2Connect will raise BadRequest.
196 * Swallow this so that DRI2Connect can signal this in its return code */
197 if (err->majorCode == codes->major_opcode &&
198 err->minorCode == X_DRI2Connect &&
199 err->errorCode == BadRequest) {
200 *ret_code = False;
201 return True;
202 }
203
204 return False;
205 }
206
207 Bool
DRI2QueryExtension(Display * dpy,int * eventBase,int * errorBase)208 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
209 {
210 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
211
212 if (XextHasExtension(info)) {
213 *eventBase = info->codes->first_event;
214 *errorBase = info->codes->first_error;
215 return True;
216 }
217
218 return False;
219 }
220
221 Bool
DRI2QueryVersion(Display * dpy,int * major,int * minor)222 DRI2QueryVersion(Display * dpy, int *major, int *minor)
223 {
224 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
225 xDRI2QueryVersionReply rep;
226 xDRI2QueryVersionReq *req;
227 int i, nevents;
228
229 XextCheckExtension(dpy, info, dri2ExtensionName, False);
230
231 LockDisplay(dpy);
232 GetReq(DRI2QueryVersion, req);
233 req->reqType = info->codes->major_opcode;
234 req->dri2ReqType = X_DRI2QueryVersion;
235 req->majorVersion = DRI2_MAJOR;
236 req->minorVersion = DRI2_MINOR;
237 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
238 UnlockDisplay(dpy);
239 SyncHandle();
240 return False;
241 }
242 *major = rep.majorVersion;
243 *minor = rep.minorVersion;
244 UnlockDisplay(dpy);
245 SyncHandle();
246
247 switch (rep.minorVersion) {
248 case 1:
249 nevents = 0;
250 break;
251 case 2:
252 nevents = 1;
253 break;
254 case 3:
255 default:
256 nevents = 2;
257 break;
258 }
259
260 for (i = 0; i < nevents; i++) {
261 XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
262 XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
263 }
264
265 return True;
266 }
267
268 Bool
DRI2Connect(Display * dpy,XID window,char ** driverName,char ** deviceName)269 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
270 {
271 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
272 xDRI2ConnectReply rep;
273 xDRI2ConnectReq *req;
274
275 XextCheckExtension(dpy, info, dri2ExtensionName, False);
276
277 LockDisplay(dpy);
278 GetReq(DRI2Connect, req);
279 req->reqType = info->codes->major_opcode;
280 req->dri2ReqType = X_DRI2Connect;
281 req->window = window;
282
283 req->driverType = DRI2DriverDRI;
284 {
285 char *prime = getenv("DRI_PRIME");
286 if (prime) {
287 uint32_t primeid;
288 errno = 0;
289 primeid = strtoul(prime, NULL, 0);
290 if (errno == 0)
291 req->driverType |=
292 ((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
293 }
294 }
295
296 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
297 UnlockDisplay(dpy);
298 SyncHandle();
299 return False;
300 }
301
302 if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
303 UnlockDisplay(dpy);
304 SyncHandle();
305 return False;
306 }
307
308 *driverName = malloc(rep.driverNameLength + 1);
309 if (*driverName == NULL) {
310 _XEatData(dpy,
311 ((rep.driverNameLength + 3) & ~3) +
312 ((rep.deviceNameLength + 3) & ~3));
313 UnlockDisplay(dpy);
314 SyncHandle();
315 return False;
316 }
317 _XReadPad(dpy, *driverName, rep.driverNameLength);
318 (*driverName)[rep.driverNameLength] = '\0';
319
320 *deviceName = malloc(rep.deviceNameLength + 1);
321 if (*deviceName == NULL) {
322 free(*driverName);
323 _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
324 UnlockDisplay(dpy);
325 SyncHandle();
326 return False;
327 }
328 _XReadPad(dpy, *deviceName, rep.deviceNameLength);
329 (*deviceName)[rep.deviceNameLength] = '\0';
330
331 UnlockDisplay(dpy);
332 SyncHandle();
333
334 return True;
335 }
336
337 Bool
DRI2Authenticate(Display * dpy,XID window,drm_magic_t magic)338 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
339 {
340 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
341 xDRI2AuthenticateReq *req;
342 xDRI2AuthenticateReply rep;
343
344 XextCheckExtension(dpy, info, dri2ExtensionName, False);
345
346 LockDisplay(dpy);
347 GetReq(DRI2Authenticate, req);
348 req->reqType = info->codes->major_opcode;
349 req->dri2ReqType = X_DRI2Authenticate;
350 req->window = window;
351 req->magic = magic;
352
353 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
354 UnlockDisplay(dpy);
355 SyncHandle();
356 return False;
357 }
358
359 UnlockDisplay(dpy);
360 SyncHandle();
361
362 return rep.authenticated;
363 }
364
365 void
DRI2CreateDrawable(Display * dpy,XID drawable)366 DRI2CreateDrawable(Display * dpy, XID drawable)
367 {
368 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
369 xDRI2CreateDrawableReq *req;
370
371 XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
372
373 LockDisplay(dpy);
374 GetReq(DRI2CreateDrawable, req);
375 req->reqType = info->codes->major_opcode;
376 req->dri2ReqType = X_DRI2CreateDrawable;
377 req->drawable = drawable;
378 UnlockDisplay(dpy);
379 SyncHandle();
380 }
381
382 void
DRI2DestroyDrawable(Display * dpy,XID drawable)383 DRI2DestroyDrawable(Display * dpy, XID drawable)
384 {
385 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
386 xDRI2DestroyDrawableReq *req;
387
388 XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
389
390 XSync(dpy, False);
391
392 LockDisplay(dpy);
393 GetReq(DRI2DestroyDrawable, req);
394 req->reqType = info->codes->major_opcode;
395 req->dri2ReqType = X_DRI2DestroyDrawable;
396 req->drawable = drawable;
397 UnlockDisplay(dpy);
398 SyncHandle();
399 }
400
401 DRI2Buffer *
DRI2GetBuffers(Display * dpy,XID drawable,int * width,int * height,unsigned int * attachments,int count,int * outCount)402 DRI2GetBuffers(Display * dpy, XID drawable,
403 int *width, int *height,
404 unsigned int *attachments, int count, int *outCount)
405 {
406 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
407 xDRI2GetBuffersReply rep;
408 xDRI2GetBuffersReq *req;
409 DRI2Buffer *buffers;
410 xDRI2Buffer repBuffer;
411 CARD32 *p;
412 int i;
413
414 XextCheckExtension(dpy, info, dri2ExtensionName, NULL);
415
416 LockDisplay(dpy);
417 GetReqExtra(DRI2GetBuffers, count * 4, req);
418 req->reqType = info->codes->major_opcode;
419 req->dri2ReqType = X_DRI2GetBuffers;
420 req->drawable = drawable;
421 req->count = count;
422 p = (CARD32 *) & req[1];
423 for (i = 0; i < count; i++)
424 p[i] = attachments[i];
425
426 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
427 UnlockDisplay(dpy);
428 SyncHandle();
429 return NULL;
430 }
431
432 *width = rep.width;
433 *height = rep.height;
434 *outCount = rep.count;
435
436 buffers = malloc(rep.count * sizeof buffers[0]);
437 if (buffers == NULL) {
438 _XEatData(dpy, rep.count * sizeof repBuffer);
439 UnlockDisplay(dpy);
440 SyncHandle();
441 return NULL;
442 }
443
444 for (i = 0; i < rep.count; i++) {
445 _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
446 buffers[i].attachment = repBuffer.attachment;
447 buffers[i].name = repBuffer.name;
448 buffers[i].pitch = repBuffer.pitch;
449 buffers[i].cpp = repBuffer.cpp;
450 buffers[i].flags = repBuffer.flags;
451 }
452
453 UnlockDisplay(dpy);
454 SyncHandle();
455
456 return buffers;
457 }
458
459
460 DRI2Buffer *
DRI2GetBuffersWithFormat(Display * dpy,XID drawable,int * width,int * height,unsigned int * attachments,int count,int * outCount)461 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
462 int *width, int *height,
463 unsigned int *attachments, int count, int *outCount)
464 {
465 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
466 xDRI2GetBuffersReply rep;
467 xDRI2GetBuffersReq *req;
468 DRI2Buffer *buffers;
469 xDRI2Buffer repBuffer;
470 CARD32 *p;
471 int i;
472
473 XextCheckExtension(dpy, info, dri2ExtensionName, NULL);
474
475 LockDisplay(dpy);
476 GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
477 req->reqType = info->codes->major_opcode;
478 req->dri2ReqType = X_DRI2GetBuffersWithFormat;
479 req->drawable = drawable;
480 req->count = count;
481 p = (CARD32 *) & req[1];
482 for (i = 0; i < (count * 2); i++)
483 p[i] = attachments[i];
484
485 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
486 UnlockDisplay(dpy);
487 SyncHandle();
488 return NULL;
489 }
490
491 *width = rep.width;
492 *height = rep.height;
493 *outCount = rep.count;
494
495 buffers = malloc(rep.count * sizeof buffers[0]);
496 if (buffers == NULL) {
497 _XEatData(dpy, rep.count * sizeof repBuffer);
498 UnlockDisplay(dpy);
499 SyncHandle();
500 return NULL;
501 }
502
503 for (i = 0; i < rep.count; i++) {
504 _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
505 buffers[i].attachment = repBuffer.attachment;
506 buffers[i].name = repBuffer.name;
507 buffers[i].pitch = repBuffer.pitch;
508 buffers[i].cpp = repBuffer.cpp;
509 buffers[i].flags = repBuffer.flags;
510 }
511
512 UnlockDisplay(dpy);
513 SyncHandle();
514
515 return buffers;
516 }
517
518
519 void
DRI2CopyRegion(Display * dpy,XID drawable,XserverRegion region,CARD32 dest,CARD32 src)520 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
521 CARD32 dest, CARD32 src)
522 {
523 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
524 xDRI2CopyRegionReq *req;
525 xDRI2CopyRegionReply rep;
526
527 XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
528
529 LockDisplay(dpy);
530 GetReq(DRI2CopyRegion, req);
531 req->reqType = info->codes->major_opcode;
532 req->dri2ReqType = X_DRI2CopyRegion;
533 req->drawable = drawable;
534 req->region = region;
535 req->dest = dest;
536 req->src = src;
537
538 _XReply(dpy, (xReply *) & rep, 0, xFalse);
539
540 UnlockDisplay(dpy);
541 SyncHandle();
542 }
543
544 #endif /* GLX_DIRECT_RENDERING */
545