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
  92    XextCheckExtension(dpy, info, dri2ExtensionName, False);
  93
  94    switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
  95
  96 #ifdef X_DRI2SwapBuffers
  97    case DRI2_BufferSwapComplete:
  98    {
  99       GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
 100       xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
 101       __GLXDRIdrawable *pdraw;
 102       struct glx_display *glx_dpy = __glXInitialize(dpy);
 103
 104       /* Ignore swap events if we're not looking for them */
 105       pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, awire->drawable);
 106       if (!(pdraw->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK))
 107          return False;
 108
 109       aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
 110       aevent->type = glx_dpy->codes->first_event + GLX_BufferSwapComplete;
 111       aevent->send_event = (awire->type & 0x80) != 0;
 112       aevent->display = dpy;
 113       aevent->drawable = awire->drawable;
 114       switch (awire->event_type) {
 115       case DRI2_EXCHANGE_COMPLETE:
 116          aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
 117          break;
 118       case DRI2_BLIT_COMPLETE:
 119          aevent->event_type = GLX_COPY_COMPLETE_INTEL;
 120          break;
 121       case DRI2_FLIP_COMPLETE:
 122          aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
 123          break;
 124       default:
 125          /* unknown swap completion type */
 126          return False;
 127       }
 128       aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
 129       aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
 130       aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo;
 131       return True;
 132    }
 133 #endif
 134 #ifdef DRI2_InvalidateBuffers
 135    case DRI2_InvalidateBuffers:
 136    {
 137       xDRI2InvalidateBuffers *awire = (xDRI2InvalidateBuffers *)wire;
 138
 139       dri2InvalidateBuffers(dpy, awire->drawable);
 140       return False;
 141    }
 142 #endif
 143    default:
 144       /* client doesn't support server event */
 145       break;
 146    }
 147
 148    return False;
 149 }
 150
 151 /* We don't actually support this.  It doesn't make sense for clients to
 152  * send each other DRI2 events.
 153  */
 154 static Status
 155 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
 156 {
 157    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 158
 159    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 160
 161    switch (event->type) {
 162    default:
 163       /* client doesn't support server event */
 164       break;
 165    }
 166
 167    return Success;
 168 }
 169
 170 static int
 171 DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code)
 172 {
 173     if (err->majorCode == codes->major_opcode &&
 174         err->errorCode == BadDrawable &&
 175         err->minorCode == X_DRI2CopyRegion)
 176         return True;
 177
 178     return False;
 179 }
 180
 181 Bool
 182 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
 183 {
 184    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 185
 186    if (XextHasExtension(info)) {
 187       *eventBase = info->codes->first_event;
 188       *errorBase = info->codes->first_error;
 189       return True;
 190    }
 191
 192    return False;
 193 }
 194
 195 Bool
 196 DRI2QueryVersion(Display * dpy, int *major, int *minor)
 197 {
 198    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 199    xDRI2QueryVersionReply rep;
 200    xDRI2QueryVersionReq *req;
 201    int i, nevents;
 202
 203    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 204
 205    LockDisplay(dpy);
 206    GetReq(DRI2QueryVersion, req);
 207    req->reqType = info->codes->major_opcode;
 208    req->dri2ReqType = X_DRI2QueryVersion;
 209    req->majorVersion = DRI2_MAJOR;
 210    req->minorVersion = DRI2_MINOR;
 211    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 212       UnlockDisplay(dpy);
 213       SyncHandle();
 214       return False;
 215    }
 216    *major = rep.majorVersion;
 217    *minor = rep.minorVersion;
 218    UnlockDisplay(dpy);
 219    SyncHandle();
 220
 221    switch (rep.minorVersion) {
 222    case 1:
 223            nevents = 0;
 224            break;
 225    case 2:
 226            nevents = 1;
 227            break;
 228    case 3:
 229    default:
 230            nevents = 2;
 231            break;
 232    }
 233
 234    for (i = 0; i < nevents; i++) {
 235        XESetWireToEvent (dpy, info->codes->first_event + i, DRI2WireToEvent);
 236        XESetEventToWire (dpy, info->codes->first_event + i, DRI2EventToWire);
 237    }
 238
 239    return True;
 240 }
 241
 242 Bool
 243 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 244 {
 245    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 246    xDRI2ConnectReply rep;
 247    xDRI2ConnectReq *req;
 248
 249    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 250
 251    LockDisplay(dpy);
 252    GetReq(DRI2Connect, req);
 253    req->reqType = info->codes->major_opcode;
 254    req->dri2ReqType = X_DRI2Connect;
 255    req->window = window;
 256    req->driverType = DRI2DriverDRI;
 257    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 258       UnlockDisplay(dpy);
 259       SyncHandle();
 260       return False;
 261    }
 262
 263    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 264       UnlockDisplay(dpy);
 265       SyncHandle();
 266       return False;
 267    }
 268
 269    *driverName = Xmalloc(rep.driverNameLength + 1);
 270    if (*driverName == NULL) {
 271       _XEatData(dpy,
 272                 ((rep.driverNameLength + 3) & ~3) +
 273                 ((rep.deviceNameLength + 3) & ~3));
 274       UnlockDisplay(dpy);
 275       SyncHandle();
 276       return False;
 277    }
 278    _XReadPad(dpy, *driverName, rep.driverNameLength);
 279    (*driverName)[rep.driverNameLength] = '\0';
 280
 281    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 282    if (*deviceName == NULL) {
 283       Xfree(*driverName);
 284       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 285       UnlockDisplay(dpy);
 286       SyncHandle();
 287       return False;
 288    }
 289    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 290    (*deviceName)[rep.deviceNameLength] = '\0';
 291
 292    UnlockDisplay(dpy);
 293    SyncHandle();
 294
 295    return True;
 296 }
 297
 298 Bool
 299 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 300 {
 301    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 302    xDRI2AuthenticateReq *req;
 303    xDRI2AuthenticateReply rep;
 304
 305    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 306
 307    LockDisplay(dpy);
 308    GetReq(DRI2Authenticate, req);
 309    req->reqType = info->codes->major_opcode;
 310    req->dri2ReqType = X_DRI2Authenticate;
 311    req->window = window;
 312    req->magic = magic;
 313
 314    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 315       UnlockDisplay(dpy);
 316       SyncHandle();
 317       return False;
 318    }
 319
 320    UnlockDisplay(dpy);
 321    SyncHandle();
 322
 323    return rep.authenticated;
 324 }
 325
 326 void
 327 DRI2CreateDrawable(Display * dpy, XID drawable)
 328 {
 329    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 330    xDRI2CreateDrawableReq *req;
 331
 332    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 333
 334    LockDisplay(dpy);
 335    GetReq(DRI2CreateDrawable, req);
 336    req->reqType = info->codes->major_opcode;
 337    req->dri2ReqType = X_DRI2CreateDrawable;
 338    req->drawable = drawable;
 339    UnlockDisplay(dpy);
 340    SyncHandle();
 341 }
 342
 343 void
 344 DRI2DestroyDrawable(Display * dpy, XID drawable)
 345 {
 346    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 347    xDRI2DestroyDrawableReq *req;
 348
 349    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 350
 351    XSync(dpy, False);
 352
 353    LockDisplay(dpy);
 354    GetReq(DRI2DestroyDrawable, req);
 355    req->reqType = info->codes->major_opcode;
 356    req->dri2ReqType = X_DRI2DestroyDrawable;
 357    req->drawable = drawable;
 358    UnlockDisplay(dpy);
 359    SyncHandle();
 360 }
 361
 362 DRI2Buffer *
 363 DRI2GetBuffers(Display * dpy, XID drawable,
 364                int *width, int *height,
 365                unsigned int *attachments, int count, int *outCount)
 366 {
 367    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 368    xDRI2GetBuffersReply rep;
 369    xDRI2GetBuffersReq *req;
 370    DRI2Buffer *buffers;
 371    xDRI2Buffer repBuffer;
 372    CARD32 *p;
 373    int i;
 374
 375    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 376
 377    LockDisplay(dpy);
 378    GetReqExtra(DRI2GetBuffers, count * 4, req);
 379    req->reqType = info->codes->major_opcode;
 380    req->dri2ReqType = X_DRI2GetBuffers;
 381    req->drawable = drawable;
 382    req->count = count;
 383    p = (CARD32 *) & req[1];
 384    for (i = 0; i < count; i++)
 385       p[i] = attachments[i];
 386
 387    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 388       UnlockDisplay(dpy);
 389       SyncHandle();
 390       return NULL;
 391    }
 392
 393    *width = rep.width;
 394    *height = rep.height;
 395    *outCount = rep.count;
 396
 397    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 398    if (buffers == NULL) {
 399       _XEatData(dpy, rep.count * sizeof repBuffer);
 400       UnlockDisplay(dpy);
 401       SyncHandle();
 402       return NULL;
 403    }
 404
 405    for (i = 0; i < rep.count; i++) {
 406       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 407       buffers[i].attachment = repBuffer.attachment;
 408       buffers[i].name = repBuffer.name;
 409       buffers[i].pitch = repBuffer.pitch;
 410       buffers[i].cpp = repBuffer.cpp;
 411       buffers[i].flags = repBuffer.flags;
 412    }
 413
 414    UnlockDisplay(dpy);
 415    SyncHandle();
 416
 417    return buffers;
 418 }
 419
 420
 421 DRI2Buffer *
 422 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 423                          int *width, int *height,
 424                          unsigned int *attachments, int count, int *outCount)
 425 {
 426    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 427    xDRI2GetBuffersReply rep;
 428    xDRI2GetBuffersReq *req;
 429    DRI2Buffer *buffers;
 430    xDRI2Buffer repBuffer;
 431    CARD32 *p;
 432    int i;
 433
 434    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 435
 436    LockDisplay(dpy);
 437    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 438    req->reqType = info->codes->major_opcode;
 439    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 440    req->drawable = drawable;
 441    req->count = count;
 442    p = (CARD32 *) & req[1];
 443    for (i = 0; i < (count * 2); i++)
 444       p[i] = attachments[i];
 445
 446    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 447       UnlockDisplay(dpy);
 448       SyncHandle();
 449       return NULL;
 450    }
 451
 452    *width = rep.width;
 453    *height = rep.height;
 454    *outCount = rep.count;
 455
 456    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 457    if (buffers == NULL) {
 458       _XEatData(dpy, rep.count * sizeof repBuffer);
 459       UnlockDisplay(dpy);
 460       SyncHandle();
 461       return NULL;
 462    }
 463
 464    for (i = 0; i < rep.count; i++) {
 465       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 466       buffers[i].attachment = repBuffer.attachment;
 467       buffers[i].name = repBuffer.name;
 468       buffers[i].pitch = repBuffer.pitch;
 469       buffers[i].cpp = repBuffer.cpp;
 470       buffers[i].flags = repBuffer.flags;
 471    }
 472
 473    UnlockDisplay(dpy);
 474    SyncHandle();
 475
 476    return buffers;
 477 }
 478
 479
 480 void
 481 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 482                CARD32 dest, CARD32 src)
 483 {
 484    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 485    xDRI2CopyRegionReq *req;
 486    xDRI2CopyRegionReply rep;
 487
 488    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 489
 490    LockDisplay(dpy);
 491    GetReq(DRI2CopyRegion, req);
 492    req->reqType = info->codes->major_opcode;
 493    req->dri2ReqType = X_DRI2CopyRegion;
 494    req->drawable = drawable;
 495    req->region = region;
 496    req->dest = dest;
 497    req->src = src;
 498
 499    _XReply(dpy, (xReply *) & rep, 0, xFalse);
 500
 501    UnlockDisplay(dpy);
 502    SyncHandle();
 503 }
 504
 505 #ifdef X_DRI2SwapBuffers
 506 static void
 507 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 508              CARD64 remainder)
 509 {
 510     req->target_msc_hi = target >> 32;
 511     req->target_msc_lo = target & 0xffffffff;
 512     req->divisor_hi = divisor >> 32;
 513     req->divisor_lo = divisor & 0xffffffff;
 514     req->remainder_hi = remainder >> 32;
 515     req->remainder_lo = remainder & 0xffffffff;
 516 }
 517
 518 static CARD64
 519 vals_to_card64(CARD32 lo, CARD32 hi)
 520 {
 521     return (CARD64)hi << 32 | lo;
 522 }
 523
 524 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 525                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 526 {
 527     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 528     xDRI2SwapBuffersReq *req;
 529     xDRI2SwapBuffersReply rep;
 530
 531     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 532
 533     LockDisplay(dpy);
 534     GetReq(DRI2SwapBuffers, req);
 535     req->reqType = info->codes->major_opcode;
 536     req->dri2ReqType = X_DRI2SwapBuffers;
 537     req->drawable = drawable;
 538     load_swap_req(req, target_msc, divisor, remainder);
 539
 540     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 541
 542     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 543
 544     UnlockDisplay(dpy);
 545     SyncHandle();
 546 }
 547 #endif
 548
 549 #ifdef X_DRI2GetMSC
 550 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 551                 CARD64 *sbc)
 552 {
 553     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 554     xDRI2GetMSCReq *req;
 555     xDRI2MSCReply rep;
 556
 557     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 558
 559     LockDisplay(dpy);
 560     GetReq(DRI2GetMSC, req);
 561     req->reqType = info->codes->major_opcode;
 562     req->dri2ReqType = X_DRI2GetMSC;
 563     req->drawable = drawable;
 564
 565     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 566         UnlockDisplay(dpy);
 567         SyncHandle();
 568         return False;
 569     }
 570
 571     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 572     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 573     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 574
 575     UnlockDisplay(dpy);
 576     SyncHandle();
 577
 578     return True;
 579 }
 580 #endif
 581
 582 #ifdef X_DRI2WaitMSC
 583 static void
 584 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 585              CARD64 remainder)
 586 {
 587     req->target_msc_hi = target >> 32;
 588     req->target_msc_lo = target & 0xffffffff;
 589     req->divisor_hi = divisor >> 32;
 590     req->divisor_lo = divisor & 0xffffffff;
 591     req->remainder_hi = remainder >> 32;
 592     req->remainder_lo = remainder & 0xffffffff;
 593 }
 594
 595 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 596                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 597 {
 598     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 599     xDRI2WaitMSCReq *req;
 600     xDRI2MSCReply rep;
 601
 602     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 603
 604     LockDisplay(dpy);
 605     GetReq(DRI2WaitMSC, req);
 606     req->reqType = info->codes->major_opcode;
 607     req->dri2ReqType = X_DRI2WaitMSC;
 608     req->drawable = drawable;
 609     load_msc_req(req, target_msc, divisor, remainder);
 610
 611     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 612         UnlockDisplay(dpy);
 613         SyncHandle();
 614         return False;
 615     }
 616
 617     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 618     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 619     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 620
 621     UnlockDisplay(dpy);
 622     SyncHandle();
 623
 624     return True;
 625 }
 626 #endif
 627
 628 #ifdef X_DRI2WaitSBC
 629 static void
 630 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 631 {
 632     req->target_sbc_hi = target >> 32;
 633     req->target_sbc_lo = target & 0xffffffff;
 634 }
 635
 636 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 637                  CARD64 *msc, CARD64 *sbc)
 638 {
 639     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 640     xDRI2WaitSBCReq *req;
 641     xDRI2MSCReply rep;
 642
 643     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 644
 645     LockDisplay(dpy);
 646     GetReq(DRI2WaitSBC, req);
 647     req->reqType = info->codes->major_opcode;
 648     req->dri2ReqType = X_DRI2WaitSBC;
 649     req->drawable = drawable;
 650     load_sbc_req(req, target_sbc);
 651
 652     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 653         UnlockDisplay(dpy);
 654         SyncHandle();
 655         return False;
 656     }
 657
 658     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 659     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 660     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 661
 662     UnlockDisplay(dpy);
 663     SyncHandle();
 664
 665     return True;
 666 }
 667 #endif
 668
 669 #ifdef X_DRI2SwapInterval
 670 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 671 {
 672     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 673     xDRI2SwapIntervalReq *req;
 674
 675     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 676
 677     LockDisplay(dpy);
 678     GetReq(DRI2SwapInterval, req);
 679     req->reqType = info->codes->major_opcode;
 680     req->dri2ReqType = X_DRI2SwapInterval;
 681     req->drawable = drawable;
 682     req->interval = interval;
 683     UnlockDisplay(dpy);
 684     SyncHandle();
 685 }
 686 #endif
 687
 688 #endif /* GLX_DIRECT_RENDERING */