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 #ifdef X_DRI2SwapBuffers
98 case DRI2_BufferSwapComplete:
99 {
100 GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
101 xDRI2BufferSwapComplete2 *awire = (xDRI2BufferSwapComplete2 *)wire;
102 __GLXDRIdrawable *pdraw;
103
104 pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, awire->drawable);
105 if (pdraw == NULL)
106 return False;
107
108 /* Ignore swap events if we're not looking for them */
109 aevent->type = dri2GetSwapEventType(dpy, awire->drawable);
110 if(!aevent->type)
111 return False;
112
113 aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
114 aevent->send_event = (awire->type & 0x80) != 0;
115 aevent->display = dpy;
116 aevent->drawable = awire->drawable;
117 switch (awire->event_type) {
118 case DRI2_EXCHANGE_COMPLETE:
119 aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
120 break;
121 case DRI2_BLIT_COMPLETE:
122 aevent->event_type = GLX_COPY_COMPLETE_INTEL;
123 break;
124 case DRI2_FLIP_COMPLETE:
125 aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
126 break;
127 default:
128 /* unknown swap completion type */
129 return False;
130 }
131 aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
132 aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
133
134 glxDraw = GetGLXDrawable(dpy, pdraw->drawable);
135 if (glxDraw != NULL) {
136 if (awire->sbc < glxDraw->lastEventSbc)
137 glxDraw->eventSbcWrap += 0x100000000;
138 glxDraw->lastEventSbc = awire->sbc;
139 aevent->sbc = awire->sbc + glxDraw->eventSbcWrap;
140 } else {
141 aevent->sbc = awire->sbc;
142 }
143
144 return True;
145 }
146 #endif
147 #ifdef DRI2_InvalidateBuffers
148 case DRI2_InvalidateBuffers:
149 {
150 xDRI2InvalidateBuffers *awire = (xDRI2InvalidateBuffers *)wire;
151
152 dri2InvalidateBuffers(dpy, awire->drawable);
153 return False;
154 }
155 #endif
156 default:
157 /* client doesn't support server event */
158 break;
159 }
160
161 return False;
162 }
163
164 /* We don't actually support this. It doesn't make sense for clients to
165 * send each other DRI2 events.
166 */
167 static Status
DRI2EventToWire(Display * dpy,XEvent * event,xEvent * wire)168 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
169 {
170 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
171
172 XextCheckExtension(dpy, info, dri2ExtensionName, False);
173
174 switch (event->type) {
175 default:
176 /* client doesn't support server event */
177 break;
178 }
179
180 return Success;
181 }
182
183 static int
DRI2Error(Display * display,xError * err,XExtCodes * codes,int * ret_code)184 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code)
185 {
186 if (err->majorCode == codes->major_opcode &&
187 err->errorCode == BadDrawable &&
188 err->minorCode == X_DRI2CopyRegion)
189 return True;
190
191 /* If the X drawable was destroyed before the GLX drawable, the
192 * DRI2 drawble will be gone by the time we call
193 * DRI2DestroyDrawable. So just ignore BadDrawable here. */
194 if (err->majorCode == codes->major_opcode &&
195 err->errorCode == BadDrawable &&
196 err->minorCode == X_DRI2DestroyDrawable)
197 return True;
198
199 /* If the server is non-local DRI2Connect will raise BadRequest.
200 * Swallow this so that DRI2Connect can signal this in its return code */
201 if (err->majorCode == codes->major_opcode &&
202 err->minorCode == X_DRI2Connect &&
203 err->errorCode == BadRequest) {
204 *ret_code = False;
205 return True;
206 }
207
208 return False;
209 }
210
211 Bool
DRI2QueryExtension(Display * dpy,int * eventBase,int * errorBase)212 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
213 {
214 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
215
216 if (XextHasExtension(info)) {
217 *eventBase = info->codes->first_event;
218 *errorBase = info->codes->first_error;
219 return True;
220 }
221
222 return False;
223 }
224
225 Bool
DRI2QueryVersion(Display * dpy,int * major,int * minor)226 DRI2QueryVersion(Display * dpy, int *major, int *minor)
227 {
228 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
229 xDRI2QueryVersionReply rep;
230 xDRI2QueryVersionReq *req;
231 int i, nevents;
232
233 XextCheckExtension(dpy, info, dri2ExtensionName, False);
234
235 LockDisplay(dpy);
236 GetReq(DRI2QueryVersion, req);
237 req->reqType = info->codes->major_opcode;
238 req->dri2ReqType = X_DRI2QueryVersion;
239 req->majorVersion = DRI2_MAJOR;
240 req->minorVersion = DRI2_MINOR;
241 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
242 UnlockDisplay(dpy);
243 SyncHandle();
244 return False;
245 }
246 *major = rep.majorVersion;
247 *minor = rep.minorVersion;
248 UnlockDisplay(dpy);
249 SyncHandle();
250
251 switch (rep.minorVersion) {
252 case 1:
253 nevents = 0;
254 break;
255 case 2:
256 nevents = 1;
257 break;
258 case 3:
259 default:
260 nevents = 2;
261 break;
262 }
263
264 for (i = 0; i < nevents; i++) {
265 XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
266 XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
267 }
268
269 return True;
270 }
271
272 Bool
DRI2Connect(Display * dpy,XID window,char ** driverName,char ** deviceName)273 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
274 {
275 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
276 xDRI2ConnectReply rep;
277 xDRI2ConnectReq *req;
278
279 XextCheckExtension(dpy, info, dri2ExtensionName, False);
280
281 LockDisplay(dpy);
282 GetReq(DRI2Connect, req);
283 req->reqType = info->codes->major_opcode;
284 req->dri2ReqType = X_DRI2Connect;
285 req->window = window;
286
287 req->driverType = DRI2DriverDRI;
288 #ifdef DRI2DriverPrimeShift
289 {
290 char *prime = getenv("DRI_PRIME");
291 if (prime) {
292 uint32_t primeid;
293 errno = 0;
294 primeid = strtoul(prime, NULL, 0);
295 if (errno == 0)
296 req->driverType |=
297 ((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
298 }
299 }
300 #endif
301
302 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
303 UnlockDisplay(dpy);
304 SyncHandle();
305 return False;
306 }
307
308 if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
309 UnlockDisplay(dpy);
310 SyncHandle();
311 return False;
312 }
313
314 *driverName = malloc(rep.driverNameLength + 1);
315 if (*driverName == NULL) {
316 _XEatData(dpy,
317 ((rep.driverNameLength + 3) & ~3) +
318 ((rep.deviceNameLength + 3) & ~3));
319 UnlockDisplay(dpy);
320 SyncHandle();
321 return False;
322 }
323 _XReadPad(dpy, *driverName, rep.driverNameLength);
324 (*driverName)[rep.driverNameLength] = '\0';
325
326 *deviceName = malloc(rep.deviceNameLength + 1);
327 if (*deviceName == NULL) {
328 free(*driverName);
329 _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
330 UnlockDisplay(dpy);
331 SyncHandle();
332 return False;
333 }
334 _XReadPad(dpy, *deviceName, rep.deviceNameLength);
335 (*deviceName)[rep.deviceNameLength] = '\0';
336
337 UnlockDisplay(dpy);
338 SyncHandle();
339
340 return True;
341 }
342
343 Bool
DRI2Authenticate(Display * dpy,XID window,drm_magic_t magic)344 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
345 {
346 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
347 xDRI2AuthenticateReq *req;
348 xDRI2AuthenticateReply rep;
349
350 XextCheckExtension(dpy, info, dri2ExtensionName, False);
351
352 LockDisplay(dpy);
353 GetReq(DRI2Authenticate, req);
354 req->reqType = info->codes->major_opcode;
355 req->dri2ReqType = X_DRI2Authenticate;
356 req->window = window;
357 req->magic = magic;
358
359 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
360 UnlockDisplay(dpy);
361 SyncHandle();
362 return False;
363 }
364
365 UnlockDisplay(dpy);
366 SyncHandle();
367
368 return rep.authenticated;
369 }
370
371 void
DRI2CreateDrawable(Display * dpy,XID drawable)372 DRI2CreateDrawable(Display * dpy, XID drawable)
373 {
374 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
375 xDRI2CreateDrawableReq *req;
376
377 XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
378
379 LockDisplay(dpy);
380 GetReq(DRI2CreateDrawable, req);
381 req->reqType = info->codes->major_opcode;
382 req->dri2ReqType = X_DRI2CreateDrawable;
383 req->drawable = drawable;
384 UnlockDisplay(dpy);
385 SyncHandle();
386 }
387
388 void
DRI2DestroyDrawable(Display * dpy,XID drawable)389 DRI2DestroyDrawable(Display * dpy, XID drawable)
390 {
391 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
392 xDRI2DestroyDrawableReq *req;
393
394 XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
395
396 XSync(dpy, False);
397
398 LockDisplay(dpy);
399 GetReq(DRI2DestroyDrawable, req);
400 req->reqType = info->codes->major_opcode;
401 req->dri2ReqType = X_DRI2DestroyDrawable;
402 req->drawable = drawable;
403 UnlockDisplay(dpy);
404 SyncHandle();
405 }
406
407 DRI2Buffer *
DRI2GetBuffers(Display * dpy,XID drawable,int * width,int * height,unsigned int * attachments,int count,int * outCount)408 DRI2GetBuffers(Display * dpy, XID drawable,
409 int *width, int *height,
410 unsigned int *attachments, int count, int *outCount)
411 {
412 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
413 xDRI2GetBuffersReply rep;
414 xDRI2GetBuffersReq *req;
415 DRI2Buffer *buffers;
416 xDRI2Buffer repBuffer;
417 CARD32 *p;
418 int i;
419
420 XextCheckExtension(dpy, info, dri2ExtensionName, False);
421
422 LockDisplay(dpy);
423 GetReqExtra(DRI2GetBuffers, count * 4, req);
424 req->reqType = info->codes->major_opcode;
425 req->dri2ReqType = X_DRI2GetBuffers;
426 req->drawable = drawable;
427 req->count = count;
428 p = (CARD32 *) & req[1];
429 for (i = 0; i < count; i++)
430 p[i] = attachments[i];
431
432 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
433 UnlockDisplay(dpy);
434 SyncHandle();
435 return NULL;
436 }
437
438 *width = rep.width;
439 *height = rep.height;
440 *outCount = rep.count;
441
442 buffers = malloc(rep.count * sizeof buffers[0]);
443 if (buffers == NULL) {
444 _XEatData(dpy, rep.count * sizeof repBuffer);
445 UnlockDisplay(dpy);
446 SyncHandle();
447 return NULL;
448 }
449
450 for (i = 0; i < rep.count; i++) {
451 _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
452 buffers[i].attachment = repBuffer.attachment;
453 buffers[i].name = repBuffer.name;
454 buffers[i].pitch = repBuffer.pitch;
455 buffers[i].cpp = repBuffer.cpp;
456 buffers[i].flags = repBuffer.flags;
457 }
458
459 UnlockDisplay(dpy);
460 SyncHandle();
461
462 return buffers;
463 }
464
465
466 DRI2Buffer *
DRI2GetBuffersWithFormat(Display * dpy,XID drawable,int * width,int * height,unsigned int * attachments,int count,int * outCount)467 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
468 int *width, int *height,
469 unsigned int *attachments, int count, int *outCount)
470 {
471 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
472 xDRI2GetBuffersReply rep;
473 xDRI2GetBuffersReq *req;
474 DRI2Buffer *buffers;
475 xDRI2Buffer repBuffer;
476 CARD32 *p;
477 int i;
478
479 XextCheckExtension(dpy, info, dri2ExtensionName, False);
480
481 LockDisplay(dpy);
482 GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
483 req->reqType = info->codes->major_opcode;
484 req->dri2ReqType = X_DRI2GetBuffersWithFormat;
485 req->drawable = drawable;
486 req->count = count;
487 p = (CARD32 *) & req[1];
488 for (i = 0; i < (count * 2); i++)
489 p[i] = attachments[i];
490
491 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
492 UnlockDisplay(dpy);
493 SyncHandle();
494 return NULL;
495 }
496
497 *width = rep.width;
498 *height = rep.height;
499 *outCount = rep.count;
500
501 buffers = malloc(rep.count * sizeof buffers[0]);
502 if (buffers == NULL) {
503 _XEatData(dpy, rep.count * sizeof repBuffer);
504 UnlockDisplay(dpy);
505 SyncHandle();
506 return NULL;
507 }
508
509 for (i = 0; i < rep.count; i++) {
510 _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
511 buffers[i].attachment = repBuffer.attachment;
512 buffers[i].name = repBuffer.name;
513 buffers[i].pitch = repBuffer.pitch;
514 buffers[i].cpp = repBuffer.cpp;
515 buffers[i].flags = repBuffer.flags;
516 }
517
518 UnlockDisplay(dpy);
519 SyncHandle();
520
521 return buffers;
522 }
523
524
525 void
DRI2CopyRegion(Display * dpy,XID drawable,XserverRegion region,CARD32 dest,CARD32 src)526 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
527 CARD32 dest, CARD32 src)
528 {
529 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
530 xDRI2CopyRegionReq *req;
531 xDRI2CopyRegionReply rep;
532
533 XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
534
535 LockDisplay(dpy);
536 GetReq(DRI2CopyRegion, req);
537 req->reqType = info->codes->major_opcode;
538 req->dri2ReqType = X_DRI2CopyRegion;
539 req->drawable = drawable;
540 req->region = region;
541 req->dest = dest;
542 req->src = src;
543
544 _XReply(dpy, (xReply *) & rep, 0, xFalse);
545
546 UnlockDisplay(dpy);
547 SyncHandle();
548 }
549
550 #endif /* GLX_DIRECT_RENDERING */
551