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