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 */