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     return False;
 194 }
 195
 196 Bool
 197 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
 198 {
 199    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 200
 201    if (XextHasExtension(info)) {
 202       *eventBase = info->codes->first_event;
 203       *errorBase = info->codes->first_error;
 204       return True;
 205    }
 206
 207    return False;
 208 }
 209
 210 Bool
 211 DRI2QueryVersion(Display * dpy, int *major, int *minor)
 212 {
 213    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 214    xDRI2QueryVersionReply rep;
 215    xDRI2QueryVersionReq *req;
 216    int i, nevents;
 217
 218    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 219
 220    LockDisplay(dpy);
 221    GetReq(DRI2QueryVersion, req);
 222    req->reqType = info->codes->major_opcode;
 223    req->dri2ReqType = X_DRI2QueryVersion;
 224    req->majorVersion = DRI2_MAJOR;
 225    req->minorVersion = DRI2_MINOR;
 226    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 227       UnlockDisplay(dpy);
 228       SyncHandle();
 229       return False;
 230    }
 231    *major = rep.majorVersion;
 232    *minor = rep.minorVersion;
 233    UnlockDisplay(dpy);
 234    SyncHandle();
 235
 236    switch (rep.minorVersion) {
 237    case 1:
 238            nevents = 0;
 239            break;
 240    case 2:
 241            nevents = 1;
 242            break;
 243    case 3:
 244    default:
 245            nevents = 2;
 246            break;
 247    }
 248
 249    for (i = 0; i < nevents; i++) {
 250        XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
 251        XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
 252    }
 253
 254    return True;
 255 }
 256
 257 Bool
 258 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 259 {
 260    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 261    xDRI2ConnectReply rep;
 262    xDRI2ConnectReq *req;
 263
 264    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 265
 266    LockDisplay(dpy);
 267    GetReq(DRI2Connect, req);
 268    req->reqType = info->codes->major_opcode;
 269    req->dri2ReqType = X_DRI2Connect;
 270    req->window = window;
 271    req->driverType = DRI2DriverDRI;
 272    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 273       UnlockDisplay(dpy);
 274       SyncHandle();
 275       return False;
 276    }
 277
 278    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 279       UnlockDisplay(dpy);
 280       SyncHandle();
 281       return False;
 282    }
 283
 284    *driverName = Xmalloc(rep.driverNameLength + 1);
 285    if (*driverName == NULL) {
 286       _XEatData(dpy,
 287                 ((rep.driverNameLength + 3) & ~3) +
 288                 ((rep.deviceNameLength + 3) & ~3));
 289       UnlockDisplay(dpy);
 290       SyncHandle();
 291       return False;
 292    }
 293    _XReadPad(dpy, *driverName, rep.driverNameLength);
 294    (*driverName)[rep.driverNameLength] = '\0';
 295
 296    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 297    if (*deviceName == NULL) {
 298       Xfree(*driverName);
 299       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 300       UnlockDisplay(dpy);
 301       SyncHandle();
 302       return False;
 303    }
 304    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 305    (*deviceName)[rep.deviceNameLength] = '\0';
 306
 307    UnlockDisplay(dpy);
 308    SyncHandle();
 309
 310    return True;
 311 }
 312
 313 Bool
 314 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 315 {
 316    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 317    xDRI2AuthenticateReq *req;
 318    xDRI2AuthenticateReply rep;
 319
 320    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 321
 322    LockDisplay(dpy);
 323    GetReq(DRI2Authenticate, req);
 324    req->reqType = info->codes->major_opcode;
 325    req->dri2ReqType = X_DRI2Authenticate;
 326    req->window = window;
 327    req->magic = magic;
 328
 329    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 330       UnlockDisplay(dpy);
 331       SyncHandle();
 332       return False;
 333    }
 334
 335    UnlockDisplay(dpy);
 336    SyncHandle();
 337
 338    return rep.authenticated;
 339 }
 340
 341 void
 342 DRI2CreateDrawable(Display * dpy, XID drawable)
 343 {
 344    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 345    xDRI2CreateDrawableReq *req;
 346
 347    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 348
 349    LockDisplay(dpy);
 350    GetReq(DRI2CreateDrawable, req);
 351    req->reqType = info->codes->major_opcode;
 352    req->dri2ReqType = X_DRI2CreateDrawable;
 353    req->drawable = drawable;
 354    UnlockDisplay(dpy);
 355    SyncHandle();
 356 }
 357
 358 void
 359 DRI2DestroyDrawable(Display * dpy, XID drawable)
 360 {
 361    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 362    xDRI2DestroyDrawableReq *req;
 363
 364    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 365
 366    XSync(dpy, False);
 367
 368    LockDisplay(dpy);
 369    GetReq(DRI2DestroyDrawable, req);
 370    req->reqType = info->codes->major_opcode;
 371    req->dri2ReqType = X_DRI2DestroyDrawable;
 372    req->drawable = drawable;
 373    UnlockDisplay(dpy);
 374    SyncHandle();
 375 }
 376
 377 DRI2Buffer *
 378 DRI2GetBuffers(Display * dpy, XID drawable,
 379                int *width, int *height,
 380                unsigned int *attachments, int count, int *outCount)
 381 {
 382    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 383    xDRI2GetBuffersReply rep;
 384    xDRI2GetBuffersReq *req;
 385    DRI2Buffer *buffers;
 386    xDRI2Buffer repBuffer;
 387    CARD32 *p;
 388    int i;
 389
 390    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 391
 392    LockDisplay(dpy);
 393    GetReqExtra(DRI2GetBuffers, count * 4, req);
 394    req->reqType = info->codes->major_opcode;
 395    req->dri2ReqType = X_DRI2GetBuffers;
 396    req->drawable = drawable;
 397    req->count = count;
 398    p = (CARD32 *) & req[1];
 399    for (i = 0; i < count; i++)
 400       p[i] = attachments[i];
 401
 402    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 403       UnlockDisplay(dpy);
 404       SyncHandle();
 405       return NULL;
 406    }
 407
 408    *width = rep.width;
 409    *height = rep.height;
 410    *outCount = rep.count;
 411
 412    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 413    if (buffers == NULL) {
 414       _XEatData(dpy, rep.count * sizeof repBuffer);
 415       UnlockDisplay(dpy);
 416       SyncHandle();
 417       return NULL;
 418    }
 419
 420    for (i = 0; i < rep.count; i++) {
 421       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 422       buffers[i].attachment = repBuffer.attachment;
 423       buffers[i].name = repBuffer.name;
 424       buffers[i].pitch = repBuffer.pitch;
 425       buffers[i].cpp = repBuffer.cpp;
 426       buffers[i].flags = repBuffer.flags;
 427    }
 428
 429    UnlockDisplay(dpy);
 430    SyncHandle();
 431
 432    return buffers;
 433 }
 434
 435
 436 DRI2Buffer *
 437 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 438                          int *width, int *height,
 439                          unsigned int *attachments, int count, int *outCount)
 440 {
 441    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 442    xDRI2GetBuffersReply rep;
 443    xDRI2GetBuffersReq *req;
 444    DRI2Buffer *buffers;
 445    xDRI2Buffer repBuffer;
 446    CARD32 *p;
 447    int i;
 448
 449    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 450
 451    LockDisplay(dpy);
 452    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 453    req->reqType = info->codes->major_opcode;
 454    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 455    req->drawable = drawable;
 456    req->count = count;
 457    p = (CARD32 *) & req[1];
 458    for (i = 0; i < (count * 2); i++)
 459       p[i] = attachments[i];
 460
 461    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 462       UnlockDisplay(dpy);
 463       SyncHandle();
 464       return NULL;
 465    }
 466
 467    *width = rep.width;
 468    *height = rep.height;
 469    *outCount = rep.count;
 470
 471    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 472    if (buffers == NULL) {
 473       _XEatData(dpy, rep.count * sizeof repBuffer);
 474       UnlockDisplay(dpy);
 475       SyncHandle();
 476       return NULL;
 477    }
 478
 479    for (i = 0; i < rep.count; i++) {
 480       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 481       buffers[i].attachment = repBuffer.attachment;
 482       buffers[i].name = repBuffer.name;
 483       buffers[i].pitch = repBuffer.pitch;
 484       buffers[i].cpp = repBuffer.cpp;
 485       buffers[i].flags = repBuffer.flags;
 486    }
 487
 488    UnlockDisplay(dpy);
 489    SyncHandle();
 490
 491    return buffers;
 492 }
 493
 494
 495 void
 496 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 497                CARD32 dest, CARD32 src)
 498 {
 499    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 500    xDRI2CopyRegionReq *req;
 501    xDRI2CopyRegionReply rep;
 502
 503    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 504
 505    LockDisplay(dpy);
 506    GetReq(DRI2CopyRegion, req);
 507    req->reqType = info->codes->major_opcode;
 508    req->dri2ReqType = X_DRI2CopyRegion;
 509    req->drawable = drawable;
 510    req->region = region;
 511    req->dest = dest;
 512    req->src = src;
 513
 514    _XReply(dpy, (xReply *) & rep, 0, xFalse);
 515
 516    UnlockDisplay(dpy);
 517    SyncHandle();
 518 }
 519
 520 #ifdef X_DRI2SwapBuffers
 521 static void
 522 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 523              CARD64 remainder)
 524 {
 525     req->target_msc_hi = target >> 32;
 526     req->target_msc_lo = target & 0xffffffff;
 527     req->divisor_hi = divisor >> 32;
 528     req->divisor_lo = divisor & 0xffffffff;
 529     req->remainder_hi = remainder >> 32;
 530     req->remainder_lo = remainder & 0xffffffff;
 531 }
 532
 533 static CARD64
 534 vals_to_card64(CARD32 lo, CARD32 hi)
 535 {
 536     return (CARD64)hi << 32 | lo;
 537 }
 538
 539 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 540                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 541 {
 542     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 543     xDRI2SwapBuffersReq *req;
 544     xDRI2SwapBuffersReply rep;
 545
 546     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 547
 548     LockDisplay(dpy);
 549     GetReq(DRI2SwapBuffers, req);
 550     req->reqType = info->codes->major_opcode;
 551     req->dri2ReqType = X_DRI2SwapBuffers;
 552     req->drawable = drawable;
 553     load_swap_req(req, target_msc, divisor, remainder);
 554
 555     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 556
 557     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 558
 559     UnlockDisplay(dpy);
 560     SyncHandle();
 561 }
 562 #endif
 563
 564 #ifdef X_DRI2GetMSC
 565 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 566                 CARD64 *sbc)
 567 {
 568     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 569     xDRI2GetMSCReq *req;
 570     xDRI2MSCReply rep;
 571
 572     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 573
 574     LockDisplay(dpy);
 575     GetReq(DRI2GetMSC, req);
 576     req->reqType = info->codes->major_opcode;
 577     req->dri2ReqType = X_DRI2GetMSC;
 578     req->drawable = drawable;
 579
 580     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 581         UnlockDisplay(dpy);
 582         SyncHandle();
 583         return False;
 584     }
 585
 586     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 587     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 588     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 589
 590     UnlockDisplay(dpy);
 591     SyncHandle();
 592
 593     return True;
 594 }
 595 #endif
 596
 597 #ifdef X_DRI2WaitMSC
 598 static void
 599 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 600              CARD64 remainder)
 601 {
 602     req->target_msc_hi = target >> 32;
 603     req->target_msc_lo = target & 0xffffffff;
 604     req->divisor_hi = divisor >> 32;
 605     req->divisor_lo = divisor & 0xffffffff;
 606     req->remainder_hi = remainder >> 32;
 607     req->remainder_lo = remainder & 0xffffffff;
 608 }
 609
 610 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 611                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 612 {
 613     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 614     xDRI2WaitMSCReq *req;
 615     xDRI2MSCReply rep;
 616
 617     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 618
 619     LockDisplay(dpy);
 620     GetReq(DRI2WaitMSC, req);
 621     req->reqType = info->codes->major_opcode;
 622     req->dri2ReqType = X_DRI2WaitMSC;
 623     req->drawable = drawable;
 624     load_msc_req(req, target_msc, divisor, remainder);
 625
 626     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 627         UnlockDisplay(dpy);
 628         SyncHandle();
 629         return False;
 630     }
 631
 632     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 633     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 634     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 635
 636     UnlockDisplay(dpy);
 637     SyncHandle();
 638
 639     return True;
 640 }
 641 #endif
 642
 643 #ifdef X_DRI2WaitSBC
 644 static void
 645 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 646 {
 647     req->target_sbc_hi = target >> 32;
 648     req->target_sbc_lo = target & 0xffffffff;
 649 }
 650
 651 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 652                  CARD64 *msc, CARD64 *sbc)
 653 {
 654     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 655     xDRI2WaitSBCReq *req;
 656     xDRI2MSCReply rep;
 657
 658     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 659
 660     LockDisplay(dpy);
 661     GetReq(DRI2WaitSBC, req);
 662     req->reqType = info->codes->major_opcode;
 663     req->dri2ReqType = X_DRI2WaitSBC;
 664     req->drawable = drawable;
 665     load_sbc_req(req, target_sbc);
 666
 667     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 668         UnlockDisplay(dpy);
 669         SyncHandle();
 670         return False;
 671     }
 672
 673     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 674     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 675     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 676
 677     UnlockDisplay(dpy);
 678     SyncHandle();
 679
 680     return True;
 681 }
 682 #endif
 683
 684 #ifdef X_DRI2SwapInterval
 685 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 686 {
 687     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 688     xDRI2SwapIntervalReq *req;
 689
 690     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 691
 692     LockDisplay(dpy);
 693     GetReq(DRI2SwapInterval, req);
 694     req->reqType = info->codes->major_opcode;
 695     req->dri2ReqType = X_DRI2SwapInterval;
 696     req->drawable = drawable;
 697     req->interval = interval;
 698     UnlockDisplay(dpy);
 699     SyncHandle();
 700 }
 701 #endif
 702
 703 #endif /* GLX_DIRECT_RENDERING */