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 #define NEED_REPLIES
  37 #include <stdio.h>
  38 #include <X11/Xlibint.h>
  39 #include <X11/extensions/Xext.h>
  40 #include <X11/extensions/extutil.h>
  41 #include <X11/extensions/dri2proto.h>
  42 #include "xf86drm.h"
  43 #include "dri2.h"
  44 #include "glxclient.h"
  45 #include "GL/glxext.h"
  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 static int
  66 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code);
  67
  68 static /* const */ XExtensionHooks dri2ExtensionHooks = {
  69   NULL,                   /* create_gc */
  70   NULL,                   /* copy_gc */
  71   NULL,                   /* flush_gc */
  72   NULL,                   /* free_gc */
  73   NULL,                   /* create_font */
  74   NULL,                   /* free_font */
  75   DRI2CloseDisplay,       /* close_display */
  76   DRI2WireToEvent,        /* wire_to_event */
  77   DRI2EventToWire,        /* event_to_wire */
  78   DRI2Error,              /* error */
  79   NULL,                   /* error_string */
  80 };
  81
  82 static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay,
  83                                    dri2Info,
  84                                    dri2ExtensionName,
  85                                    &dri2ExtensionHooks,
  86                                    0, NULL)
  87
  88 static Bool
  89 DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
  90 {
  91    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
  92    XExtDisplayInfo *glx_info = __glXFindDisplay(dpy);
  93
  94    XextCheckExtension(dpy, info, dri2ExtensionName, False);
  95
  96    switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
  97
  98 #ifdef X_DRI2SwapBuffers
  99    case DRI2_BufferSwapComplete:
 100    {
 101       GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
 102       xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
 103       aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
 104       aevent->type =
 105           (glx_info->codes->first_event + GLX_BufferSwapComplete) & 0x75;
 106       aevent->send_event = (awire->type & 0x80) != 0;
 107       aevent->display = dpy;
 108       aevent->drawable = awire->drawable;
 109       switch (awire->event_type) {
 110       case DRI2_EXCHANGE_COMPLETE:
 111          aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
 112          break;
 113       case DRI2_BLIT_COMPLETE:
 114          aevent->event_type = GLX_BLIT_COMPLETE_INTEL;
 115          break;
 116       case DRI2_FLIP_COMPLETE:
 117          aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
 118          break;
 119       default:
 120          /* unknown swap completion type */
 121          return False;
 122       }
 123       aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
 124       aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
 125       aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo;
 126       return True;
 127    }
 128 #endif
 129 #ifdef DRI2_InvalidateBuffers
 130    case DRI2_InvalidateBuffers:
 131    {
 132       xDRI2InvalidateBuffers *awire = (xDRI2InvalidateBuffers *)wire;
 133
 134       dri2InvalidateBuffers(dpy, awire->drawable);
 135       return False;
 136    }
 137 #endif
 138    default:
 139       /* client doesn't support server event */
 140       break;
 141    }
 142
 143    return False;
 144 }
 145
 146 /* We don't actually support this.  It doesn't make sense for clients to
 147  * send each other DRI2 events.
 148  */
 149 static Status
 150 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
 151 {
 152    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 153
 154    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 155
 156    switch (event->type) {
 157    default:
 158       /* client doesn't support server event */
 159       break;
 160    }
 161
 162    return Success;
 163 }
 164
 165 static int
 166 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code)
 167 {
 168     if (err->majorCode == codes->major_opcode &&
 169         err->errorCode == BadDrawable &&
 170         err->minorCode == X_DRI2CopyRegion)
 171         return True;
 172
 173     return False;
 174 }
 175
 176 Bool
 177 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
 178 {
 179    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 180
 181    if (XextHasExtension(info)) {
 182       *eventBase = info->codes->first_event;
 183       *errorBase = info->codes->first_error;
 184       return True;
 185    }
 186
 187    return False;
 188 }
 189
 190 Bool
 191 DRI2QueryVersion(Display * dpy, int *major, int *minor)
 192 {
 193    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 194    xDRI2QueryVersionReply rep;
 195    xDRI2QueryVersionReq *req;
 196    int i, nevents;
 197
 198    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 199
 200    LockDisplay(dpy);
 201    GetReq(DRI2QueryVersion, req);
 202    req->reqType = info->codes->major_opcode;
 203    req->dri2ReqType = X_DRI2QueryVersion;
 204    req->majorVersion = DRI2_MAJOR;
 205    req->minorVersion = DRI2_MINOR;
 206    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 207       UnlockDisplay(dpy);
 208       SyncHandle();
 209       return False;
 210    }
 211    *major = rep.majorVersion;
 212    *minor = rep.minorVersion;
 213    UnlockDisplay(dpy);
 214    SyncHandle();
 215
 216    switch (rep.minorVersion) {
 217    case 1:
 218            nevents = 0;
 219            break;
 220    case 2:
 221            nevents = 1;
 222            break;
 223    case 3:
 224    default:
 225            nevents = 2;
 226            break;
 227    }
 228
 229    for (i = 0; i < nevents; i++) {
 230        XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
 231        XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
 232    }
 233
 234    return True;
 235 }
 236
 237 Bool
 238 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 239 {
 240    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 241    xDRI2ConnectReply rep;
 242    xDRI2ConnectReq *req;
 243
 244    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 245
 246    LockDisplay(dpy);
 247    GetReq(DRI2Connect, req);
 248    req->reqType = info->codes->major_opcode;
 249    req->dri2ReqType = X_DRI2Connect;
 250    req->window = window;
 251    req->driverType = DRI2DriverDRI;
 252    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 253       UnlockDisplay(dpy);
 254       SyncHandle();
 255       return False;
 256    }
 257
 258    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 259       UnlockDisplay(dpy);
 260       SyncHandle();
 261       return False;
 262    }
 263
 264    *driverName = Xmalloc(rep.driverNameLength + 1);
 265    if (*driverName == NULL) {
 266       _XEatData(dpy,
 267                 ((rep.driverNameLength + 3) & ~3) +
 268                 ((rep.deviceNameLength + 3) & ~3));
 269       UnlockDisplay(dpy);
 270       SyncHandle();
 271       return False;
 272    }
 273    _XReadPad(dpy, *driverName, rep.driverNameLength);
 274    (*driverName)[rep.driverNameLength] = '\0';
 275
 276    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 277    if (*deviceName == NULL) {
 278       Xfree(*driverName);
 279       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 280       UnlockDisplay(dpy);
 281       SyncHandle();
 282       return False;
 283    }
 284    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 285    (*deviceName)[rep.deviceNameLength] = '\0';
 286
 287    UnlockDisplay(dpy);
 288    SyncHandle();
 289
 290    return True;
 291 }
 292
 293 Bool
 294 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 295 {
 296    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 297    xDRI2AuthenticateReq *req;
 298    xDRI2AuthenticateReply rep;
 299
 300    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 301
 302    LockDisplay(dpy);
 303    GetReq(DRI2Authenticate, req);
 304    req->reqType = info->codes->major_opcode;
 305    req->dri2ReqType = X_DRI2Authenticate;
 306    req->window = window;
 307    req->magic = magic;
 308
 309    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 310       UnlockDisplay(dpy);
 311       SyncHandle();
 312       return False;
 313    }
 314
 315    UnlockDisplay(dpy);
 316    SyncHandle();
 317
 318    return rep.authenticated;
 319 }
 320
 321 void
 322 DRI2CreateDrawable(Display * dpy, XID drawable)
 323 {
 324    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 325    xDRI2CreateDrawableReq *req;
 326
 327    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 328
 329    LockDisplay(dpy);
 330    GetReq(DRI2CreateDrawable, req);
 331    req->reqType = info->codes->major_opcode;
 332    req->dri2ReqType = X_DRI2CreateDrawable;
 333    req->drawable = drawable;
 334    UnlockDisplay(dpy);
 335    SyncHandle();
 336 }
 337
 338 void
 339 DRI2DestroyDrawable(Display * dpy, XID drawable)
 340 {
 341    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 342    xDRI2DestroyDrawableReq *req;
 343
 344    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 345
 346    XSync(dpy, False);
 347
 348    LockDisplay(dpy);
 349    GetReq(DRI2DestroyDrawable, req);
 350    req->reqType = info->codes->major_opcode;
 351    req->dri2ReqType = X_DRI2DestroyDrawable;
 352    req->drawable = drawable;
 353    UnlockDisplay(dpy);
 354    SyncHandle();
 355 }
 356
 357 DRI2Buffer *
 358 DRI2GetBuffers(Display * dpy, XID drawable,
 359                int *width, int *height,
 360                unsigned int *attachments, int count, int *outCount)
 361 {
 362    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 363    xDRI2GetBuffersReply rep;
 364    xDRI2GetBuffersReq *req;
 365    DRI2Buffer *buffers;
 366    xDRI2Buffer repBuffer;
 367    CARD32 *p;
 368    int i;
 369
 370    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 371
 372    LockDisplay(dpy);
 373    GetReqExtra(DRI2GetBuffers, count * 4, req);
 374    req->reqType = info->codes->major_opcode;
 375    req->dri2ReqType = X_DRI2GetBuffers;
 376    req->drawable = drawable;
 377    req->count = count;
 378    p = (CARD32 *) & req[1];
 379    for (i = 0; i < count; i++)
 380       p[i] = attachments[i];
 381
 382    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 383       UnlockDisplay(dpy);
 384       SyncHandle();
 385       return NULL;
 386    }
 387
 388    *width = rep.width;
 389    *height = rep.height;
 390    *outCount = rep.count;
 391
 392    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 393    if (buffers == NULL) {
 394       _XEatData(dpy, rep.count * sizeof repBuffer);
 395       UnlockDisplay(dpy);
 396       SyncHandle();
 397       return NULL;
 398    }
 399
 400    for (i = 0; i < rep.count; i++) {
 401       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 402       buffers[i].attachment = repBuffer.attachment;
 403       buffers[i].name = repBuffer.name;
 404       buffers[i].pitch = repBuffer.pitch;
 405       buffers[i].cpp = repBuffer.cpp;
 406       buffers[i].flags = repBuffer.flags;
 407    }
 408
 409    UnlockDisplay(dpy);
 410    SyncHandle();
 411
 412    return buffers;
 413 }
 414
 415
 416 DRI2Buffer *
 417 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 418                          int *width, int *height,
 419                          unsigned int *attachments, int count, int *outCount)
 420 {
 421    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 422    xDRI2GetBuffersReply rep;
 423    xDRI2GetBuffersReq *req;
 424    DRI2Buffer *buffers;
 425    xDRI2Buffer repBuffer;
 426    CARD32 *p;
 427    int i;
 428
 429    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 430
 431    LockDisplay(dpy);
 432    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 433    req->reqType = info->codes->major_opcode;
 434    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 435    req->drawable = drawable;
 436    req->count = count;
 437    p = (CARD32 *) & req[1];
 438    for (i = 0; i < (count * 2); i++)
 439       p[i] = attachments[i];
 440
 441    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 442       UnlockDisplay(dpy);
 443       SyncHandle();
 444       return NULL;
 445    }
 446
 447    *width = rep.width;
 448    *height = rep.height;
 449    *outCount = rep.count;
 450
 451    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 452    if (buffers == NULL) {
 453       _XEatData(dpy, rep.count * sizeof repBuffer);
 454       UnlockDisplay(dpy);
 455       SyncHandle();
 456       return NULL;
 457    }
 458
 459    for (i = 0; i < rep.count; i++) {
 460       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 461       buffers[i].attachment = repBuffer.attachment;
 462       buffers[i].name = repBuffer.name;
 463       buffers[i].pitch = repBuffer.pitch;
 464       buffers[i].cpp = repBuffer.cpp;
 465       buffers[i].flags = repBuffer.flags;
 466    }
 467
 468    UnlockDisplay(dpy);
 469    SyncHandle();
 470
 471    return buffers;
 472 }
 473
 474
 475 void
 476 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 477                CARD32 dest, CARD32 src)
 478 {
 479    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 480    xDRI2CopyRegionReq *req;
 481    xDRI2CopyRegionReply rep;
 482
 483    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 484
 485    LockDisplay(dpy);
 486    GetReq(DRI2CopyRegion, req);
 487    req->reqType = info->codes->major_opcode;
 488    req->dri2ReqType = X_DRI2CopyRegion;
 489    req->drawable = drawable;
 490    req->region = region;
 491    req->dest = dest;
 492    req->src = src;
 493
 494    _XReply(dpy, (xReply *) & rep, 0, xFalse);
 495
 496    UnlockDisplay(dpy);
 497    SyncHandle();
 498 }
 499
 500 #ifdef X_DRI2SwapBuffers
 501 static void
 502 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 503              CARD64 remainder)
 504 {
 505     req->target_msc_hi = target >> 32;
 506     req->target_msc_lo = target & 0xffffffff;
 507     req->divisor_hi = divisor >> 32;
 508     req->divisor_lo = divisor & 0xffffffff;
 509     req->remainder_hi = remainder >> 32;
 510     req->remainder_lo = remainder & 0xffffffff;
 511 }
 512
 513 static CARD64
 514 vals_to_card64(CARD32 lo, CARD32 hi)
 515 {
 516     return (CARD64)hi << 32 | lo;
 517 }
 518
 519 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 520                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 521 {
 522     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 523     xDRI2SwapBuffersReq *req;
 524     xDRI2SwapBuffersReply rep;
 525
 526     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 527
 528     LockDisplay(dpy);
 529     GetReq(DRI2SwapBuffers, req);
 530     req->reqType = info->codes->major_opcode;
 531     req->dri2ReqType = X_DRI2SwapBuffers;
 532     req->drawable = drawable;
 533     load_swap_req(req, target_msc, divisor, remainder);
 534
 535     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 536
 537     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 538
 539     UnlockDisplay(dpy);
 540     SyncHandle();
 541 }
 542 #endif
 543
 544 #ifdef X_DRI2GetMSC
 545 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 546                 CARD64 *sbc)
 547 {
 548     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 549     xDRI2GetMSCReq *req;
 550     xDRI2MSCReply rep;
 551
 552     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 553
 554     LockDisplay(dpy);
 555     GetReq(DRI2GetMSC, req);
 556     req->reqType = info->codes->major_opcode;
 557     req->dri2ReqType = X_DRI2GetMSC;
 558     req->drawable = drawable;
 559
 560     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 561         UnlockDisplay(dpy);
 562         SyncHandle();
 563         return False;
 564     }
 565
 566     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 567     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 568     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 569
 570     UnlockDisplay(dpy);
 571     SyncHandle();
 572
 573     return True;
 574 }
 575 #endif
 576
 577 #ifdef X_DRI2WaitMSC
 578 static void
 579 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 580              CARD64 remainder)
 581 {
 582     req->target_msc_hi = target >> 32;
 583     req->target_msc_lo = target & 0xffffffff;
 584     req->divisor_hi = divisor >> 32;
 585     req->divisor_lo = divisor & 0xffffffff;
 586     req->remainder_hi = remainder >> 32;
 587     req->remainder_lo = remainder & 0xffffffff;
 588 }
 589
 590 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 591                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 592 {
 593     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 594     xDRI2WaitMSCReq *req;
 595     xDRI2MSCReply rep;
 596
 597     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 598
 599     LockDisplay(dpy);
 600     GetReq(DRI2WaitMSC, req);
 601     req->reqType = info->codes->major_opcode;
 602     req->dri2ReqType = X_DRI2WaitMSC;
 603     req->drawable = drawable;
 604     load_msc_req(req, target_msc, divisor, remainder);
 605
 606     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 607         UnlockDisplay(dpy);
 608         SyncHandle();
 609         return False;
 610     }
 611
 612     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 613     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 614     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 615
 616     UnlockDisplay(dpy);
 617     SyncHandle();
 618
 619     return True;
 620 }
 621 #endif
 622
 623 #ifdef X_DRI2WaitSBC
 624 static void
 625 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 626 {
 627     req->target_sbc_hi = target >> 32;
 628     req->target_sbc_lo = target & 0xffffffff;
 629 }
 630
 631 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 632                  CARD64 *msc, CARD64 *sbc)
 633 {
 634     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 635     xDRI2WaitSBCReq *req;
 636     xDRI2MSCReply rep;
 637
 638     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 639
 640     LockDisplay(dpy);
 641     GetReq(DRI2WaitSBC, req);
 642     req->reqType = info->codes->major_opcode;
 643     req->dri2ReqType = X_DRI2WaitSBC;
 644     req->drawable = drawable;
 645     load_sbc_req(req, target_sbc);
 646
 647     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 648         UnlockDisplay(dpy);
 649         SyncHandle();
 650         return False;
 651     }
 652
 653     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 654     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 655     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 656
 657     UnlockDisplay(dpy);
 658     SyncHandle();
 659
 660     return True;
 661 }
 662 #endif
 663
 664 #ifdef X_DRI2SwapInterval
 665 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 666 {
 667     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 668     xDRI2SwapIntervalReq *req;
 669
 670     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 671
 672     LockDisplay(dpy);
 673     GetReq(DRI2SwapInterval, req);
 674     req->reqType = info->codes->major_opcode;
 675     req->dri2ReqType = X_DRI2SwapInterval;
 676     req->drawable = drawable;
 677     req->interval = interval;
 678     UnlockDisplay(dpy);
 679     SyncHandle();
 680 }
 681 #endif
 682
 683 #endif /* GLX_DIRECT_RENDERING */