sync with tizen_2.2
[sdk/emulator/qemu.git] / gl / mesa / src / glx / dri2.c
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 "xf86drm.h"
42 #include "dri2.h"
43 #include "glxclient.h"
44 #include "GL/glxext.h"
45
46 /* Allow the build to work with an older versions of dri2proto.h and
47  * dri2tokens.h.
48  */
49 #if DRI2_MINOR < 1
50 #undef DRI2_MINOR
51 #define DRI2_MINOR 1
52 #define X_DRI2GetBuffersWithFormat 7
53 #endif
54
55
56 static char dri2ExtensionName[] = DRI2_NAME;
57 static XExtensionInfo *dri2Info;
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
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
106       /* Ignore swap events if we're not looking for them */
107       aevent->type = dri2GetSwapEventType(dpy, awire->drawable);
108       if(!aevent->type)
109          return False;
110
111       aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
112       aevent->send_event = (awire->type & 0x80) != 0;
113       aevent->display = dpy;
114       aevent->drawable = awire->drawable;
115       switch (awire->event_type) {
116       case DRI2_EXCHANGE_COMPLETE:
117          aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
118          break;
119       case DRI2_BLIT_COMPLETE:
120          aevent->event_type = GLX_COPY_COMPLETE_INTEL;
121          break;
122       case DRI2_FLIP_COMPLETE:
123          aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
124          break;
125       default:
126          /* unknown swap completion type */
127          return False;
128       }
129       aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
130       aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
131
132       glxDraw = GetGLXDrawable(dpy, pdraw->drawable);
133       if (awire->sbc < glxDraw->lastEventSbc)
134          glxDraw->eventSbcWrap += 0x100000000;
135       glxDraw->lastEventSbc = awire->sbc;
136       aevent->sbc = awire->sbc + glxDraw->eventSbcWrap;
137
138       return True;
139    }
140 #endif
141 #ifdef DRI2_InvalidateBuffers
142    case DRI2_InvalidateBuffers:
143    {
144       xDRI2InvalidateBuffers *awire = (xDRI2InvalidateBuffers *)wire;
145
146       dri2InvalidateBuffers(dpy, awire->drawable);
147       return False;
148    }
149 #endif
150    default:
151       /* client doesn't support server event */
152       break;
153    }
154
155    return False;
156 }
157
158 /* We don't actually support this.  It doesn't make sense for clients to
159  * send each other DRI2 events.
160  */
161 static Status
162 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
163 {
164    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
165
166    XextCheckExtension(dpy, info, dri2ExtensionName, False);
167
168    switch (event->type) {
169    default:
170       /* client doesn't support server event */
171       break;
172    }
173
174    return Success;
175 }
176
177 static int
178 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code)
179 {
180     if (err->majorCode == codes->major_opcode &&
181         err->errorCode == BadDrawable &&
182         err->minorCode == X_DRI2CopyRegion)
183         return True;
184
185     /* If the X drawable was destroyed before the GLX drawable, the
186      * DRI2 drawble will be gone by the time we call
187      * DRI2DestroyDrawable.  So just ignore BadDrawable here. */
188     if (err->majorCode == codes->major_opcode &&
189         err->errorCode == BadDrawable &&
190         err->minorCode == X_DRI2DestroyDrawable)
191         return True;
192
193     /* If the server is non-local DRI2Connect will raise BadRequest.
194      * Swallow this so that DRI2Connect can signal this in its return code */
195     if (err->majorCode == codes->major_opcode &&
196         err->minorCode == X_DRI2Connect &&
197         err->errorCode == BadRequest) {
198         *ret_code = False;
199         return True;
200     }
201
202     return False;
203 }
204
205 Bool
206 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
207 {
208    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
209
210    if (XextHasExtension(info)) {
211       *eventBase = info->codes->first_event;
212       *errorBase = info->codes->first_error;
213       return True;
214    }
215
216    return False;
217 }
218
219 Bool
220 DRI2QueryVersion(Display * dpy, int *major, int *minor)
221 {
222    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
223    xDRI2QueryVersionReply rep;
224    xDRI2QueryVersionReq *req;
225    int i, nevents;
226
227    XextCheckExtension(dpy, info, dri2ExtensionName, False);
228
229    LockDisplay(dpy);
230    GetReq(DRI2QueryVersion, req);
231    req->reqType = info->codes->major_opcode;
232    req->dri2ReqType = X_DRI2QueryVersion;
233    req->majorVersion = DRI2_MAJOR;
234    req->minorVersion = DRI2_MINOR;
235    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
236       UnlockDisplay(dpy);
237       SyncHandle();
238       return False;
239    }
240    *major = rep.majorVersion;
241    *minor = rep.minorVersion;
242    UnlockDisplay(dpy);
243    SyncHandle();
244
245    switch (rep.minorVersion) {
246    case 1:
247            nevents = 0;
248            break;
249    case 2:
250            nevents = 1;
251            break;
252    case 3:
253    default:
254            nevents = 2;
255            break;
256    }
257         
258    for (i = 0; i < nevents; i++) {
259        XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
260        XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
261    }
262
263    return True;
264 }
265
266 Bool
267 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
268 {
269    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
270    xDRI2ConnectReply rep;
271    xDRI2ConnectReq *req;
272
273    XextCheckExtension(dpy, info, dri2ExtensionName, False);
274
275    LockDisplay(dpy);
276    GetReq(DRI2Connect, req);
277    req->reqType = info->codes->major_opcode;
278    req->dri2ReqType = X_DRI2Connect;
279    req->window = window;
280    req->driverType = DRI2DriverDRI;
281    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
282       UnlockDisplay(dpy);
283       SyncHandle();
284       return False;
285    }
286
287    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
288       UnlockDisplay(dpy);
289       SyncHandle();
290       return False;
291    }
292
293    *driverName = Xmalloc(rep.driverNameLength + 1);
294    if (*driverName == NULL) {
295       _XEatData(dpy,
296                 ((rep.driverNameLength + 3) & ~3) +
297                 ((rep.deviceNameLength + 3) & ~3));
298       UnlockDisplay(dpy);
299       SyncHandle();
300       return False;
301    }
302    _XReadPad(dpy, *driverName, rep.driverNameLength);
303    (*driverName)[rep.driverNameLength] = '\0';
304
305    *deviceName = Xmalloc(rep.deviceNameLength + 1);
306    if (*deviceName == NULL) {
307       Xfree(*driverName);
308       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
309       UnlockDisplay(dpy);
310       SyncHandle();
311       return False;
312    }
313    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
314    (*deviceName)[rep.deviceNameLength] = '\0';
315
316    UnlockDisplay(dpy);
317    SyncHandle();
318
319    return True;
320 }
321
322 Bool
323 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
324 {
325    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
326    xDRI2AuthenticateReq *req;
327    xDRI2AuthenticateReply rep;
328
329    XextCheckExtension(dpy, info, dri2ExtensionName, False);
330
331    LockDisplay(dpy);
332    GetReq(DRI2Authenticate, req);
333    req->reqType = info->codes->major_opcode;
334    req->dri2ReqType = X_DRI2Authenticate;
335    req->window = window;
336    req->magic = magic;
337
338    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
339       UnlockDisplay(dpy);
340       SyncHandle();
341       return False;
342    }
343
344    UnlockDisplay(dpy);
345    SyncHandle();
346
347    return rep.authenticated;
348 }
349
350 void
351 DRI2CreateDrawable(Display * dpy, XID drawable)
352 {
353    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
354    xDRI2CreateDrawableReq *req;
355
356    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
357
358    LockDisplay(dpy);
359    GetReq(DRI2CreateDrawable, req);
360    req->reqType = info->codes->major_opcode;
361    req->dri2ReqType = X_DRI2CreateDrawable;
362    req->drawable = drawable;
363    UnlockDisplay(dpy);
364    SyncHandle();
365 }
366
367 void
368 DRI2DestroyDrawable(Display * dpy, XID drawable)
369 {
370    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
371    xDRI2DestroyDrawableReq *req;
372
373    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
374
375    XSync(dpy, False);
376
377    LockDisplay(dpy);
378    GetReq(DRI2DestroyDrawable, req);
379    req->reqType = info->codes->major_opcode;
380    req->dri2ReqType = X_DRI2DestroyDrawable;
381    req->drawable = drawable;
382    UnlockDisplay(dpy);
383    SyncHandle();
384 }
385
386 DRI2Buffer *
387 DRI2GetBuffers(Display * dpy, XID drawable,
388                int *width, int *height,
389                unsigned int *attachments, int count, int *outCount)
390 {
391    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
392    xDRI2GetBuffersReply rep;
393    xDRI2GetBuffersReq *req;
394    DRI2Buffer *buffers;
395    xDRI2Buffer repBuffer;
396    CARD32 *p;
397    int i;
398
399    XextCheckExtension(dpy, info, dri2ExtensionName, False);
400
401    LockDisplay(dpy);
402    GetReqExtra(DRI2GetBuffers, count * 4, req);
403    req->reqType = info->codes->major_opcode;
404    req->dri2ReqType = X_DRI2GetBuffers;
405    req->drawable = drawable;
406    req->count = count;
407    p = (CARD32 *) & req[1];
408    for (i = 0; i < count; i++)
409       p[i] = attachments[i];
410
411    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
412       UnlockDisplay(dpy);
413       SyncHandle();
414       return NULL;
415    }
416
417    *width = rep.width;
418    *height = rep.height;
419    *outCount = rep.count;
420
421    buffers = Xmalloc(rep.count * sizeof buffers[0]);
422    if (buffers == NULL) {
423       _XEatData(dpy, rep.count * sizeof repBuffer);
424       UnlockDisplay(dpy);
425       SyncHandle();
426       return NULL;
427    }
428
429    for (i = 0; i < rep.count; i++) {
430       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
431       buffers[i].attachment = repBuffer.attachment;
432       buffers[i].name = repBuffer.name;
433       buffers[i].pitch = repBuffer.pitch;
434       buffers[i].cpp = repBuffer.cpp;
435       buffers[i].flags = repBuffer.flags;
436    }
437
438    UnlockDisplay(dpy);
439    SyncHandle();
440
441    return buffers;
442 }
443
444
445 DRI2Buffer *
446 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
447                          int *width, int *height,
448                          unsigned int *attachments, int count, int *outCount)
449 {
450    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
451    xDRI2GetBuffersReply rep;
452    xDRI2GetBuffersReq *req;
453    DRI2Buffer *buffers;
454    xDRI2Buffer repBuffer;
455    CARD32 *p;
456    int i;
457
458    XextCheckExtension(dpy, info, dri2ExtensionName, False);
459
460    LockDisplay(dpy);
461    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
462    req->reqType = info->codes->major_opcode;
463    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
464    req->drawable = drawable;
465    req->count = count;
466    p = (CARD32 *) & req[1];
467    for (i = 0; i < (count * 2); i++)
468       p[i] = attachments[i];
469
470    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
471       UnlockDisplay(dpy);
472       SyncHandle();
473       return NULL;
474    }
475
476    *width = rep.width;
477    *height = rep.height;
478    *outCount = rep.count;
479
480    buffers = Xmalloc(rep.count * sizeof buffers[0]);
481    if (buffers == NULL) {
482       _XEatData(dpy, rep.count * sizeof repBuffer);
483       UnlockDisplay(dpy);
484       SyncHandle();
485       return NULL;
486    }
487
488    for (i = 0; i < rep.count; i++) {
489       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
490       buffers[i].attachment = repBuffer.attachment;
491       buffers[i].name = repBuffer.name;
492       buffers[i].pitch = repBuffer.pitch;
493       buffers[i].cpp = repBuffer.cpp;
494       buffers[i].flags = repBuffer.flags;
495    }
496
497    UnlockDisplay(dpy);
498    SyncHandle();
499
500    return buffers;
501 }
502
503
504 void
505 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
506                CARD32 dest, CARD32 src)
507 {
508    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
509    xDRI2CopyRegionReq *req;
510    xDRI2CopyRegionReply rep;
511
512    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
513
514    LockDisplay(dpy);
515    GetReq(DRI2CopyRegion, req);
516    req->reqType = info->codes->major_opcode;
517    req->dri2ReqType = X_DRI2CopyRegion;
518    req->drawable = drawable;
519    req->region = region;
520    req->dest = dest;
521    req->src = src;
522
523    _XReply(dpy, (xReply *) & rep, 0, xFalse);
524
525    UnlockDisplay(dpy);
526    SyncHandle();
527 }
528
529 #ifdef X_DRI2SwapBuffers
530 static void
531 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
532              CARD64 remainder)
533 {
534     req->target_msc_hi = target >> 32;
535     req->target_msc_lo = target & 0xffffffff;
536     req->divisor_hi = divisor >> 32;
537     req->divisor_lo = divisor & 0xffffffff;
538     req->remainder_hi = remainder >> 32;
539     req->remainder_lo = remainder & 0xffffffff;
540 }
541
542 static CARD64
543 vals_to_card64(CARD32 lo, CARD32 hi)
544 {
545     return (CARD64)hi << 32 | lo;
546 }
547
548 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
549                      CARD64 divisor, CARD64 remainder, CARD64 *count)
550 {
551     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
552     xDRI2SwapBuffersReq *req;
553     xDRI2SwapBuffersReply rep;
554
555     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
556
557     LockDisplay(dpy);
558     GetReq(DRI2SwapBuffers, req);
559     req->reqType = info->codes->major_opcode;
560     req->dri2ReqType = X_DRI2SwapBuffers;
561     req->drawable = drawable;
562     load_swap_req(req, target_msc, divisor, remainder);
563
564     _XReply(dpy, (xReply *)&rep, 0, xFalse);
565
566     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
567
568     UnlockDisplay(dpy);
569     SyncHandle();
570 }
571 #endif
572
573 #ifdef X_DRI2GetMSC
574 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
575                 CARD64 *sbc)
576 {
577     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
578     xDRI2GetMSCReq *req;
579     xDRI2MSCReply rep;
580
581     XextCheckExtension (dpy, info, dri2ExtensionName, False);
582
583     LockDisplay(dpy);
584     GetReq(DRI2GetMSC, req);
585     req->reqType = info->codes->major_opcode;
586     req->dri2ReqType = X_DRI2GetMSC;
587     req->drawable = drawable;
588
589     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
590         UnlockDisplay(dpy);
591         SyncHandle();
592         return False;
593     }
594
595     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
596     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
597     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
598
599     UnlockDisplay(dpy);
600     SyncHandle();
601
602     return True;
603 }
604 #endif
605
606 #ifdef X_DRI2WaitMSC
607 static void
608 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
609              CARD64 remainder)
610 {
611     req->target_msc_hi = target >> 32;
612     req->target_msc_lo = target & 0xffffffff;
613     req->divisor_hi = divisor >> 32;
614     req->divisor_lo = divisor & 0xffffffff;
615     req->remainder_hi = remainder >> 32;
616     req->remainder_lo = remainder & 0xffffffff;
617 }
618
619 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
620                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
621 {
622     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
623     xDRI2WaitMSCReq *req;
624     xDRI2MSCReply rep;
625
626     XextCheckExtension (dpy, info, dri2ExtensionName, False);
627
628     LockDisplay(dpy);
629     GetReq(DRI2WaitMSC, req);
630     req->reqType = info->codes->major_opcode;
631     req->dri2ReqType = X_DRI2WaitMSC;
632     req->drawable = drawable;
633     load_msc_req(req, target_msc, divisor, remainder);
634
635     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
636         UnlockDisplay(dpy);
637         SyncHandle();
638         return False;
639     }
640
641     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
642     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
643     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
644
645     UnlockDisplay(dpy);
646     SyncHandle();
647
648     return True;
649 }
650 #endif
651
652 #ifdef X_DRI2WaitSBC
653 static void
654 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
655 {
656     req->target_sbc_hi = target >> 32;
657     req->target_sbc_lo = target & 0xffffffff;
658 }
659
660 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
661                  CARD64 *msc, CARD64 *sbc)
662 {
663     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
664     xDRI2WaitSBCReq *req;
665     xDRI2MSCReply rep;
666
667     XextCheckExtension (dpy, info, dri2ExtensionName, False);
668
669     LockDisplay(dpy);
670     GetReq(DRI2WaitSBC, req);
671     req->reqType = info->codes->major_opcode;
672     req->dri2ReqType = X_DRI2WaitSBC;
673     req->drawable = drawable;
674     load_sbc_req(req, target_sbc);
675
676     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
677         UnlockDisplay(dpy);
678         SyncHandle();
679         return False;
680     }
681
682     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
683     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
684     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
685
686     UnlockDisplay(dpy);
687     SyncHandle();
688
689     return True;
690 }
691 #endif
692
693 #ifdef X_DRI2SwapInterval
694 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
695 {
696     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
697     xDRI2SwapIntervalReq *req;
698
699     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
700
701     LockDisplay(dpy);
702     GetReq(DRI2SwapInterval, req);
703     req->reqType = info->codes->major_opcode;
704     req->dri2ReqType = X_DRI2SwapInterval;
705     req->drawable = drawable;
706     req->interval = interval;
707     UnlockDisplay(dpy);
708     SyncHandle();
709 }
710 #endif
711
712 #endif /* GLX_DIRECT_RENDERING */