src/gallium/winsys/g3dvl/dri/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 #define NEED_REPLIES
  35 #include <stdio.h>
  36 #include <X11/Xlibint.h>
  37 #include <X11/extensions/Xext.h>
  38 #include <X11/extensions/extutil.h>
  39 #include <X11/extensions/dri2proto.h>
  40 #include "xf86drm.h"
  41 #include "dri2.h"
  42 #if 0
  43 #include "glxclient.h"
  44 #include "GL/glxext.h"
  45 #endif
  46
  47 /* Allow the build to work with an older versions of dri2proto.h and
  48  * dri2tokens.h.
  49  */
  50 #if DRI2_MINOR < 1
  51 #undef DRI2_MINOR
  52 #define DRI2_MINOR 1
  53 #define X_DRI2GetBuffersWithFormat 7
  54 #endif
  55
  56
  57 static char dri2ExtensionName[] = DRI2_NAME;
  58 static XExtensionInfo *dri2Info;
  59 static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info)
  60
  61 static Bool
  62 DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire);
  63 static Status
  64 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire);
  65
  66 static /* const */ XExtensionHooks dri2ExtensionHooks = {
  67   NULL,                   /* create_gc */
  68   NULL,                   /* copy_gc */
  69   NULL,                   /* flush_gc */
  70   NULL,                   /* free_gc */
  71   NULL,                   /* create_font */
  72   NULL,                   /* free_font */
  73   DRI2CloseDisplay,       /* close_display */
  74   DRI2WireToEvent,        /* wire_to_event */
  75   DRI2EventToWire,        /* event_to_wire */
  76   NULL,                   /* error */
  77   NULL,                   /* error_string */
  78 };
  79
  80 static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay,
  81                                    dri2Info,
  82                                    dri2ExtensionName,
  83                                    &dri2ExtensionHooks,
  84                                    0, NULL)
  85
  86 static Bool
  87 DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
  88 {
  89 #if 0
  90    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
  91    XExtDisplayInfo *glx_info = __glXFindDisplay(dpy);
  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       xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
 102       aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
 103       aevent->type =
 104           (glx_info->codes->first_event + GLX_BufferSwapComplete) & 0x75;
 105       aevent->send_event = (awire->type & 0x80) != 0;
 106       aevent->display = dpy;
 107       aevent->drawable = awire->drawable;
 108       switch (awire->event_type) {
 109       case DRI2_EXCHANGE_COMPLETE:
 110          aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
 111          break;
 112       case DRI2_BLIT_COMPLETE:
 113          aevent->event_type = GLX_BLIT_COMPLETE_INTEL;
 114          break;
 115       case DRI2_FLIP_COMPLETE:
 116          aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
 117          break;
 118       default:
 119          /* unknown swap completion type */
 120          return False;
 121       }
 122       aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
 123       aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
 124       aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo;
 125       return True;
 126    }
 127 #endif
 128 #ifdef DRI2_InvalidateBuffers
 129    case DRI2_InvalidateBuffers:
 130    {
 131       xDRI2InvalidateBuffers *awire = (xDRI2InvalidateBuffers *)wire;
 132
 133       dri2InvalidateBuffers(dpy, awire->drawable);
 134       return False;
 135    }
 136 #endif
 137    default:
 138       /* client doesn't support server event */
 139       break;
 140    }
 141 #endif
 142    return False;
 143 }
 144
 145 /* We don't actually support this.  It doesn't make sense for clients to
 146  * send each other DRI2 events.
 147  */
 148 static Status
 149 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
 150 {
 151    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 152
 153    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 154
 155    switch (event->type) {
 156    default:
 157       /* client doesn't support server event */
 158       break;
 159    }
 160
 161    return Success;
 162 }
 163
 164 Bool
 165 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
 166 {
 167    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 168
 169    if (XextHasExtension(info)) {
 170       *eventBase = info->codes->first_event;
 171       *errorBase = info->codes->first_error;
 172       return True;
 173    }
 174
 175    return False;
 176 }
 177
 178 Bool
 179 DRI2QueryVersion(Display * dpy, int *major, int *minor)
 180 {
 181    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 182    xDRI2QueryVersionReply rep;
 183    xDRI2QueryVersionReq *req;
 184    int i, nevents;
 185
 186    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 187
 188    LockDisplay(dpy);
 189    GetReq(DRI2QueryVersion, req);
 190    req->reqType = info->codes->major_opcode;
 191    req->dri2ReqType = X_DRI2QueryVersion;
 192    req->majorVersion = DRI2_MAJOR;
 193    req->minorVersion = DRI2_MINOR;
 194    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 195       UnlockDisplay(dpy);
 196       SyncHandle();
 197       return False;
 198    }
 199    *major = rep.majorVersion;
 200    *minor = rep.minorVersion;
 201    UnlockDisplay(dpy);
 202    SyncHandle();
 203
 204    switch (rep.minorVersion) {
 205    case 1:
 206            nevents = 0;
 207            break;
 208    case 2:
 209            nevents = 1;
 210            break;
 211    case 3:
 212    default:
 213            nevents = 2;
 214            break;
 215    }
 216
 217    for (i = 0; i < nevents; i++) {
 218        XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
 219        XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
 220    }
 221
 222    return True;
 223 }
 224
 225 Bool
 226 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 227 {
 228    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 229    xDRI2ConnectReply rep;
 230    xDRI2ConnectReq *req;
 231
 232    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 233
 234    LockDisplay(dpy);
 235    GetReq(DRI2Connect, req);
 236    req->reqType = info->codes->major_opcode;
 237    req->dri2ReqType = X_DRI2Connect;
 238    req->window = window;
 239    req->driverType = DRI2DriverDRI;
 240    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 241       UnlockDisplay(dpy);
 242       SyncHandle();
 243       return False;
 244    }
 245
 246    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 247       UnlockDisplay(dpy);
 248       SyncHandle();
 249       return False;
 250    }
 251
 252    *driverName = Xmalloc(rep.driverNameLength + 1);
 253    if (*driverName == NULL) {
 254       _XEatData(dpy,
 255                 ((rep.driverNameLength + 3) & ~3) +
 256                 ((rep.deviceNameLength + 3) & ~3));
 257       UnlockDisplay(dpy);
 258       SyncHandle();
 259       return False;
 260    }
 261    _XReadPad(dpy, *driverName, rep.driverNameLength);
 262    (*driverName)[rep.driverNameLength] = '\0';
 263
 264    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 265    if (*deviceName == NULL) {
 266       Xfree(*driverName);
 267       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 268       UnlockDisplay(dpy);
 269       SyncHandle();
 270       return False;
 271    }
 272    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 273    (*deviceName)[rep.deviceNameLength] = '\0';
 274
 275    UnlockDisplay(dpy);
 276    SyncHandle();
 277
 278    return True;
 279 }
 280
 281 Bool
 282 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 283 {
 284    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 285    xDRI2AuthenticateReq *req;
 286    xDRI2AuthenticateReply rep;
 287
 288    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 289
 290    LockDisplay(dpy);
 291    GetReq(DRI2Authenticate, req);
 292    req->reqType = info->codes->major_opcode;
 293    req->dri2ReqType = X_DRI2Authenticate;
 294    req->window = window;
 295    req->magic = magic;
 296
 297    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 298       UnlockDisplay(dpy);
 299       SyncHandle();
 300       return False;
 301    }
 302
 303    UnlockDisplay(dpy);
 304    SyncHandle();
 305
 306    return rep.authenticated;
 307 }
 308
 309 void
 310 DRI2CreateDrawable(Display * dpy, XID drawable)
 311 {
 312    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 313    xDRI2CreateDrawableReq *req;
 314
 315    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 316
 317    LockDisplay(dpy);
 318    GetReq(DRI2CreateDrawable, req);
 319    req->reqType = info->codes->major_opcode;
 320    req->dri2ReqType = X_DRI2CreateDrawable;
 321    req->drawable = drawable;
 322    UnlockDisplay(dpy);
 323    SyncHandle();
 324 }
 325
 326 void
 327 DRI2DestroyDrawable(Display * dpy, XID drawable)
 328 {
 329    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 330    xDRI2DestroyDrawableReq *req;
 331
 332    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 333
 334    XSync(dpy, False);
 335
 336    LockDisplay(dpy);
 337    GetReq(DRI2DestroyDrawable, req);
 338    req->reqType = info->codes->major_opcode;
 339    req->dri2ReqType = X_DRI2DestroyDrawable;
 340    req->drawable = drawable;
 341    UnlockDisplay(dpy);
 342    SyncHandle();
 343 }
 344
 345 DRI2Buffer *
 346 DRI2GetBuffers(Display * dpy, XID drawable,
 347                int *width, int *height,
 348                unsigned int *attachments, int count, int *outCount)
 349 {
 350    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 351    xDRI2GetBuffersReply rep;
 352    xDRI2GetBuffersReq *req;
 353    DRI2Buffer *buffers;
 354    xDRI2Buffer repBuffer;
 355    CARD32 *p;
 356    int i;
 357
 358    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 359
 360    LockDisplay(dpy);
 361    GetReqExtra(DRI2GetBuffers, count * 4, req);
 362    req->reqType = info->codes->major_opcode;
 363    req->dri2ReqType = X_DRI2GetBuffers;
 364    req->drawable = drawable;
 365    req->count = count;
 366    p = (CARD32 *) & req[1];
 367    for (i = 0; i < count; i++)
 368       p[i] = attachments[i];
 369
 370    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 371       UnlockDisplay(dpy);
 372       SyncHandle();
 373       return NULL;
 374    }
 375
 376    *width = rep.width;
 377    *height = rep.height;
 378    *outCount = rep.count;
 379
 380    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 381    if (buffers == NULL) {
 382       _XEatData(dpy, rep.count * sizeof repBuffer);
 383       UnlockDisplay(dpy);
 384       SyncHandle();
 385       return NULL;
 386    }
 387
 388    for (i = 0; i < rep.count; i++) {
 389       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 390       buffers[i].attachment = repBuffer.attachment;
 391       buffers[i].name = repBuffer.name;
 392       buffers[i].pitch = repBuffer.pitch;
 393       buffers[i].cpp = repBuffer.cpp;
 394       buffers[i].flags = repBuffer.flags;
 395    }
 396
 397    UnlockDisplay(dpy);
 398    SyncHandle();
 399
 400    return buffers;
 401 }
 402
 403
 404 DRI2Buffer *
 405 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 406                          int *width, int *height,
 407                          unsigned int *attachments, int count, int *outCount)
 408 {
 409    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 410    xDRI2GetBuffersReply rep;
 411    xDRI2GetBuffersReq *req;
 412    DRI2Buffer *buffers;
 413    xDRI2Buffer repBuffer;
 414    CARD32 *p;
 415    int i;
 416
 417    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 418
 419    LockDisplay(dpy);
 420    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 421    req->reqType = info->codes->major_opcode;
 422    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 423    req->drawable = drawable;
 424    req->count = count;
 425    p = (CARD32 *) & req[1];
 426    for (i = 0; i < (count * 2); i++)
 427       p[i] = attachments[i];
 428
 429    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 430       UnlockDisplay(dpy);
 431       SyncHandle();
 432       return NULL;
 433    }
 434
 435    *width = rep.width;
 436    *height = rep.height;
 437    *outCount = rep.count;
 438
 439    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 440    if (buffers == NULL) {
 441       _XEatData(dpy, rep.count * sizeof repBuffer);
 442       UnlockDisplay(dpy);
 443       SyncHandle();
 444       return NULL;
 445    }
 446
 447    for (i = 0; i < rep.count; i++) {
 448       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 449       buffers[i].attachment = repBuffer.attachment;
 450       buffers[i].name = repBuffer.name;
 451       buffers[i].pitch = repBuffer.pitch;
 452       buffers[i].cpp = repBuffer.cpp;
 453       buffers[i].flags = repBuffer.flags;
 454    }
 455
 456    UnlockDisplay(dpy);
 457    SyncHandle();
 458
 459    return buffers;
 460 }
 461
 462
 463 void
 464 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 465                CARD32 dest, CARD32 src)
 466 {
 467    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 468    xDRI2CopyRegionReq *req;
 469
 470    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 471
 472    LockDisplay(dpy);
 473    GetReq(DRI2CopyRegion, req);
 474    req->reqType = info->codes->major_opcode;
 475    req->dri2ReqType = X_DRI2CopyRegion;
 476    req->drawable = drawable;
 477    req->region = region;
 478    req->dest = dest;
 479    req->src = src;
 480
 481    UnlockDisplay(dpy);
 482    SyncHandle();
 483 }
 484
 485 #ifdef X_DRI2SwapBuffers
 486 static void
 487 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 488              CARD64 remainder)
 489 {
 490     req->target_msc_hi = target >> 32;
 491     req->target_msc_lo = target & 0xffffffff;
 492     req->divisor_hi = divisor >> 32;
 493     req->divisor_lo = divisor & 0xffffffff;
 494     req->remainder_hi = remainder >> 32;
 495     req->remainder_lo = remainder & 0xffffffff;
 496 }
 497
 498 static CARD64
 499 vals_to_card64(CARD32 lo, CARD32 hi)
 500 {
 501     return (CARD64)hi << 32 | lo;
 502 }
 503
 504 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 505                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 506 {
 507     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 508     xDRI2SwapBuffersReq *req;
 509     xDRI2SwapBuffersReply rep;
 510
 511     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 512
 513     LockDisplay(dpy);
 514     GetReq(DRI2SwapBuffers, req);
 515     req->reqType = info->codes->major_opcode;
 516     req->dri2ReqType = X_DRI2SwapBuffers;
 517     req->drawable = drawable;
 518     load_swap_req(req, target_msc, divisor, remainder);
 519
 520     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 521
 522     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 523
 524     UnlockDisplay(dpy);
 525     SyncHandle();
 526 }
 527 #endif
 528
 529 #ifdef X_DRI2GetMSC
 530 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 531                 CARD64 *sbc)
 532 {
 533     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 534     xDRI2GetMSCReq *req;
 535     xDRI2MSCReply rep;
 536
 537     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 538
 539     LockDisplay(dpy);
 540     GetReq(DRI2GetMSC, req);
 541     req->reqType = info->codes->major_opcode;
 542     req->dri2ReqType = X_DRI2GetMSC;
 543     req->drawable = drawable;
 544
 545     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 546         UnlockDisplay(dpy);
 547         SyncHandle();
 548         return False;
 549     }
 550
 551     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 552     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 553     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 554
 555     UnlockDisplay(dpy);
 556     SyncHandle();
 557
 558     return True;
 559 }
 560 #endif
 561
 562 #ifdef X_DRI2WaitMSC
 563 static void
 564 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 565              CARD64 remainder)
 566 {
 567     req->target_msc_hi = target >> 32;
 568     req->target_msc_lo = target & 0xffffffff;
 569     req->divisor_hi = divisor >> 32;
 570     req->divisor_lo = divisor & 0xffffffff;
 571     req->remainder_hi = remainder >> 32;
 572     req->remainder_lo = remainder & 0xffffffff;
 573 }
 574
 575 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 576                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 577 {
 578     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 579     xDRI2WaitMSCReq *req;
 580     xDRI2MSCReply rep;
 581
 582     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 583
 584     LockDisplay(dpy);
 585     GetReq(DRI2WaitMSC, req);
 586     req->reqType = info->codes->major_opcode;
 587     req->dri2ReqType = X_DRI2WaitMSC;
 588     req->drawable = drawable;
 589     load_msc_req(req, target_msc, divisor, remainder);
 590
 591     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 592         UnlockDisplay(dpy);
 593         SyncHandle();
 594         return False;
 595     }
 596
 597     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 598     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 599     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 600
 601     UnlockDisplay(dpy);
 602     SyncHandle();
 603
 604     return True;
 605 }
 606 #endif
 607
 608 #ifdef X_DRI2WaitSBC
 609 static void
 610 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 611 {
 612     req->target_sbc_hi = target >> 32;
 613     req->target_sbc_lo = target & 0xffffffff;
 614 }
 615
 616 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 617                  CARD64 *msc, CARD64 *sbc)
 618 {
 619     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 620     xDRI2WaitSBCReq *req;
 621     xDRI2MSCReply rep;
 622
 623     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 624
 625     LockDisplay(dpy);
 626     GetReq(DRI2WaitSBC, req);
 627     req->reqType = info->codes->major_opcode;
 628     req->dri2ReqType = X_DRI2WaitSBC;
 629     req->drawable = drawable;
 630     load_sbc_req(req, target_sbc);
 631
 632     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 633         UnlockDisplay(dpy);
 634         SyncHandle();
 635         return False;
 636     }
 637
 638     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 639     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 640     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 641
 642     UnlockDisplay(dpy);
 643     SyncHandle();
 644
 645     return True;
 646 }
 647 #endif
 648
 649 #ifdef X_DRI2SwapInterval
 650 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 651 {
 652     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 653     xDRI2SwapIntervalReq *req;
 654
 655     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 656
 657     LockDisplay(dpy);
 658     GetReq(DRI2SwapInterval, req);
 659     req->reqType = info->codes->major_opcode;
 660     req->dri2ReqType = X_DRI2SwapInterval;
 661     req->drawable = drawable;
 662     req->interval = interval;
 663     UnlockDisplay(dpy);
 664     SyncHandle();
 665 }
 666 #endif