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    char *prime;
 273
 274    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 275
 276    LockDisplay(dpy);
 277    GetReq(DRI2Connect, req);
 278    req->reqType = info->codes->major_opcode;
 279    req->dri2ReqType = X_DRI2Connect;
 280    req->window = window;
 281
 282    req->driverType = DRI2DriverDRI;
 283 #ifdef DRI2DriverPrimeShift
 284    prime = getenv("DRI_PRIME");
 285    if (prime) {
 286       uint32_t primeid;
 287       errno = 0;
 288       primeid = strtoul(prime, NULL, 0);
 289       if (errno == 0)
 290          req->driverType |= ((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
 291    }
 292 #endif
 293
 294    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 295       UnlockDisplay(dpy);
 296       SyncHandle();
 297       return False;
 298    }
 299
 300    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 301       UnlockDisplay(dpy);
 302       SyncHandle();
 303       return False;
 304    }
 305
 306    *driverName = Xmalloc(rep.driverNameLength + 1);
 307    if (*driverName == NULL) {
 308       _XEatData(dpy,
 309                 ((rep.driverNameLength + 3) & ~3) +
 310                 ((rep.deviceNameLength + 3) & ~3));
 311       UnlockDisplay(dpy);
 312       SyncHandle();
 313       return False;
 314    }
 315    _XReadPad(dpy, *driverName, rep.driverNameLength);
 316    (*driverName)[rep.driverNameLength] = '\0';
 317
 318    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 319    if (*deviceName == NULL) {
 320       Xfree(*driverName);
 321       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 322       UnlockDisplay(dpy);
 323       SyncHandle();
 324       return False;
 325    }
 326    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 327    (*deviceName)[rep.deviceNameLength] = '\0';
 328
 329    UnlockDisplay(dpy);
 330    SyncHandle();
 331
 332    return True;
 333 }
 334
 335 Bool
 336 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 337 {
 338    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 339    xDRI2AuthenticateReq *req;
 340    xDRI2AuthenticateReply rep;
 341
 342    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 343
 344    LockDisplay(dpy);
 345    GetReq(DRI2Authenticate, req);
 346    req->reqType = info->codes->major_opcode;
 347    req->dri2ReqType = X_DRI2Authenticate;
 348    req->window = window;
 349    req->magic = magic;
 350
 351    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 352       UnlockDisplay(dpy);
 353       SyncHandle();
 354       return False;
 355    }
 356
 357    UnlockDisplay(dpy);
 358    SyncHandle();
 359
 360    return rep.authenticated;
 361 }
 362
 363 void
 364 DRI2CreateDrawable(Display * dpy, XID drawable)
 365 {
 366    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 367    xDRI2CreateDrawableReq *req;
 368
 369    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 370
 371    LockDisplay(dpy);
 372    GetReq(DRI2CreateDrawable, req);
 373    req->reqType = info->codes->major_opcode;
 374    req->dri2ReqType = X_DRI2CreateDrawable;
 375    req->drawable = drawable;
 376    UnlockDisplay(dpy);
 377    SyncHandle();
 378 }
 379
 380 void
 381 DRI2DestroyDrawable(Display * dpy, XID drawable)
 382 {
 383    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 384    xDRI2DestroyDrawableReq *req;
 385
 386    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 387
 388    XSync(dpy, False);
 389
 390    LockDisplay(dpy);
 391    GetReq(DRI2DestroyDrawable, req);
 392    req->reqType = info->codes->major_opcode;
 393    req->dri2ReqType = X_DRI2DestroyDrawable;
 394    req->drawable = drawable;
 395    UnlockDisplay(dpy);
 396    SyncHandle();
 397 }
 398
 399 DRI2Buffer *
 400 DRI2GetBuffers(Display * dpy, XID drawable,
 401                int *width, int *height,
 402                unsigned int *attachments, int count, int *outCount)
 403 {
 404    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 405    xDRI2GetBuffersReply rep;
 406    xDRI2GetBuffersReq *req;
 407    DRI2Buffer *buffers;
 408    xDRI2Buffer repBuffer;
 409    CARD32 *p;
 410    int i;
 411
 412    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 413
 414    LockDisplay(dpy);
 415    GetReqExtra(DRI2GetBuffers, count * 4, req);
 416    req->reqType = info->codes->major_opcode;
 417    req->dri2ReqType = X_DRI2GetBuffers;
 418    req->drawable = drawable;
 419    req->count = count;
 420    p = (CARD32 *) & req[1];
 421    for (i = 0; i < count; i++)
 422       p[i] = attachments[i];
 423
 424    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 425       UnlockDisplay(dpy);
 426       SyncHandle();
 427       return NULL;
 428    }
 429
 430    *width = rep.width;
 431    *height = rep.height;
 432    *outCount = rep.count;
 433
 434    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 435    if (buffers == NULL) {
 436       _XEatData(dpy, rep.count * sizeof repBuffer);
 437       UnlockDisplay(dpy);
 438       SyncHandle();
 439       return NULL;
 440    }
 441
 442    for (i = 0; i < rep.count; i++) {
 443       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 444       buffers[i].attachment = repBuffer.attachment;
 445       buffers[i].name = repBuffer.name;
 446       buffers[i].pitch = repBuffer.pitch;
 447       buffers[i].cpp = repBuffer.cpp;
 448       buffers[i].flags = repBuffer.flags;
 449    }
 450
 451    UnlockDisplay(dpy);
 452    SyncHandle();
 453
 454    return buffers;
 455 }
 456
 457
 458 DRI2Buffer *
 459 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 460                          int *width, int *height,
 461                          unsigned int *attachments, int count, int *outCount)
 462 {
 463    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 464    xDRI2GetBuffersReply rep;
 465    xDRI2GetBuffersReq *req;
 466    DRI2Buffer *buffers;
 467    xDRI2Buffer repBuffer;
 468    CARD32 *p;
 469    int i;
 470
 471    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 472
 473    LockDisplay(dpy);
 474    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 475    req->reqType = info->codes->major_opcode;
 476    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 477    req->drawable = drawable;
 478    req->count = count;
 479    p = (CARD32 *) & req[1];
 480    for (i = 0; i < (count * 2); i++)
 481       p[i] = attachments[i];
 482
 483    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 484       UnlockDisplay(dpy);
 485       SyncHandle();
 486       return NULL;
 487    }
 488
 489    *width = rep.width;
 490    *height = rep.height;
 491    *outCount = rep.count;
 492
 493    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 494    if (buffers == NULL) {
 495       _XEatData(dpy, rep.count * sizeof repBuffer);
 496       UnlockDisplay(dpy);
 497       SyncHandle();
 498       return NULL;
 499    }
 500
 501    for (i = 0; i < rep.count; i++) {
 502       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 503       buffers[i].attachment = repBuffer.attachment;
 504       buffers[i].name = repBuffer.name;
 505       buffers[i].pitch = repBuffer.pitch;
 506       buffers[i].cpp = repBuffer.cpp;
 507       buffers[i].flags = repBuffer.flags;
 508    }
 509
 510    UnlockDisplay(dpy);
 511    SyncHandle();
 512
 513    return buffers;
 514 }
 515
 516
 517 void
 518 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 519                CARD32 dest, CARD32 src)
 520 {
 521    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 522    xDRI2CopyRegionReq *req;
 523    xDRI2CopyRegionReply rep;
 524
 525    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 526
 527    LockDisplay(dpy);
 528    GetReq(DRI2CopyRegion, req);
 529    req->reqType = info->codes->major_opcode;
 530    req->dri2ReqType = X_DRI2CopyRegion;
 531    req->drawable = drawable;
 532    req->region = region;
 533    req->dest = dest;
 534    req->src = src;
 535
 536    _XReply(dpy, (xReply *) & rep, 0, xFalse);
 537
 538    UnlockDisplay(dpy);
 539    SyncHandle();
 540 }
 541
 542 #ifdef X_DRI2SwapBuffers
 543 static void
 544 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 545              CARD64 remainder)
 546 {
 547     req->target_msc_hi = target >> 32;
 548     req->target_msc_lo = target & 0xffffffff;
 549     req->divisor_hi = divisor >> 32;
 550     req->divisor_lo = divisor & 0xffffffff;
 551     req->remainder_hi = remainder >> 32;
 552     req->remainder_lo = remainder & 0xffffffff;
 553 }
 554
 555 static CARD64
 556 vals_to_card64(CARD32 lo, CARD32 hi)
 557 {
 558     return (CARD64)hi << 32 | lo;
 559 }
 560
 561 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 562                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 563 {
 564     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 565     xDRI2SwapBuffersReq *req;
 566     xDRI2SwapBuffersReply rep;
 567
 568     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 569
 570     LockDisplay(dpy);
 571     GetReq(DRI2SwapBuffers, req);
 572     req->reqType = info->codes->major_opcode;
 573     req->dri2ReqType = X_DRI2SwapBuffers;
 574     req->drawable = drawable;
 575     load_swap_req(req, target_msc, divisor, remainder);
 576
 577     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 578
 579     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 580
 581     UnlockDisplay(dpy);
 582     SyncHandle();
 583 }
 584 #endif
 585
 586 #ifdef X_DRI2GetMSC
 587 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 588                 CARD64 *sbc)
 589 {
 590     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 591     xDRI2GetMSCReq *req;
 592     xDRI2MSCReply rep;
 593
 594     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 595
 596     LockDisplay(dpy);
 597     GetReq(DRI2GetMSC, req);
 598     req->reqType = info->codes->major_opcode;
 599     req->dri2ReqType = X_DRI2GetMSC;
 600     req->drawable = drawable;
 601
 602     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 603         UnlockDisplay(dpy);
 604         SyncHandle();
 605         return False;
 606     }
 607
 608     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 609     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 610     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 611
 612     UnlockDisplay(dpy);
 613     SyncHandle();
 614
 615     return True;
 616 }
 617 #endif
 618
 619 #ifdef X_DRI2WaitMSC
 620 static void
 621 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 622              CARD64 remainder)
 623 {
 624     req->target_msc_hi = target >> 32;
 625     req->target_msc_lo = target & 0xffffffff;
 626     req->divisor_hi = divisor >> 32;
 627     req->divisor_lo = divisor & 0xffffffff;
 628     req->remainder_hi = remainder >> 32;
 629     req->remainder_lo = remainder & 0xffffffff;
 630 }
 631
 632 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 633                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 634 {
 635     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 636     xDRI2WaitMSCReq *req;
 637     xDRI2MSCReply rep;
 638
 639     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 640
 641     LockDisplay(dpy);
 642     GetReq(DRI2WaitMSC, req);
 643     req->reqType = info->codes->major_opcode;
 644     req->dri2ReqType = X_DRI2WaitMSC;
 645     req->drawable = drawable;
 646     load_msc_req(req, target_msc, divisor, remainder);
 647
 648     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 649         UnlockDisplay(dpy);
 650         SyncHandle();
 651         return False;
 652     }
 653
 654     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 655     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 656     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 657
 658     UnlockDisplay(dpy);
 659     SyncHandle();
 660
 661     return True;
 662 }
 663 #endif
 664
 665 #ifdef X_DRI2WaitSBC
 666 static void
 667 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 668 {
 669     req->target_sbc_hi = target >> 32;
 670     req->target_sbc_lo = target & 0xffffffff;
 671 }
 672
 673 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 674                  CARD64 *msc, CARD64 *sbc)
 675 {
 676     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 677     xDRI2WaitSBCReq *req;
 678     xDRI2MSCReply rep;
 679
 680     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 681
 682     LockDisplay(dpy);
 683     GetReq(DRI2WaitSBC, req);
 684     req->reqType = info->codes->major_opcode;
 685     req->dri2ReqType = X_DRI2WaitSBC;
 686     req->drawable = drawable;
 687     load_sbc_req(req, target_sbc);
 688
 689     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 690         UnlockDisplay(dpy);
 691         SyncHandle();
 692         return False;
 693     }
 694
 695     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 696     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 697     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 698
 699     UnlockDisplay(dpy);
 700     SyncHandle();
 701
 702     return True;
 703 }
 704 #endif
 705
 706 #ifdef X_DRI2SwapInterval
 707 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 708 {
 709     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 710     xDRI2SwapIntervalReq *req;
 711
 712     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 713
 714     LockDisplay(dpy);
 715     GetReq(DRI2SwapInterval, req);
 716     req->reqType = info->codes->major_opcode;
 717     req->dri2ReqType = X_DRI2SwapInterval;
 718     req->drawable = drawable;
 719     req->interval = interval;
 720     UnlockDisplay(dpy);
 721     SyncHandle();
 722 }
 723 #endif
 724
 725 #endif /* GLX_DIRECT_RENDERING */