src/glx/x11/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
  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    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
  90
  91    XextCheckExtension(dpy, info, dri2ExtensionName, False);
  92
  93    switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
  94    case DRI2_BufferSwapComplete:
  95    {
  96       GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
  97       xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
  98       switch (awire->type) {
  99       case DRI2_EXCHANGE_COMPLETE:
 100          aevent->event_type = GLX_EXCHANGE_COMPLETE;
 101          break;
 102       case DRI2_BLIT_COMPLETE:
 103          aevent->event_type = GLX_BLIT_COMPLETE;
 104          break;
 105       case DRI2_FLIP_COMPLETE:
 106          aevent->event_type = GLX_FLIP_COMPLETE;
 107          break;
 108       default:
 109          /* unknown swap completion type */
 110          return False;
 111       }
 112       aevent->drawable = awire->drawable;
 113       aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
 114       aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
 115       aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo;
 116       return True;
 117    }
 118    default:
 119       /* client doesn't support server event */
 120       break;
 121    }
 122
 123    return False;
 124 }
 125
 126 /* We don't actually support this.  It doesn't make sense for clients to
 127  * send each other DRI2 events.
 128  */
 129 static Status
 130 DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
 131 {
 132    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 133
 134    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 135
 136    switch (event->type) {
 137    default:
 138       /* client doesn't support server event */
 139       break;
 140    }
 141
 142    return Success;
 143 }
 144
 145 Bool
 146 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
 147 {
 148    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 149
 150    if (XextHasExtension(info)) {
 151       *eventBase = info->codes->first_event;
 152       *errorBase = info->codes->first_error;
 153       return True;
 154    }
 155
 156    return False;
 157 }
 158
 159 Bool
 160 DRI2QueryVersion(Display * dpy, int *major, int *minor)
 161 {
 162    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 163    xDRI2QueryVersionReply rep;
 164    xDRI2QueryVersionReq *req;
 165
 166    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 167
 168    LockDisplay(dpy);
 169    GetReq(DRI2QueryVersion, req);
 170    req->reqType = info->codes->major_opcode;
 171    req->dri2ReqType = X_DRI2QueryVersion;
 172    req->majorVersion = DRI2_MAJOR;
 173    req->minorVersion = DRI2_MINOR;
 174    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 175       UnlockDisplay(dpy);
 176       SyncHandle();
 177       return False;
 178    }
 179    *major = rep.majorVersion;
 180    *minor = rep.minorVersion;
 181    UnlockDisplay(dpy);
 182    SyncHandle();
 183
 184    return True;
 185 }
 186
 187 Bool
 188 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 189 {
 190    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 191    xDRI2ConnectReply rep;
 192    xDRI2ConnectReq *req;
 193
 194    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 195
 196    LockDisplay(dpy);
 197    GetReq(DRI2Connect, req);
 198    req->reqType = info->codes->major_opcode;
 199    req->dri2ReqType = X_DRI2Connect;
 200    req->window = window;
 201    req->driverType = DRI2DriverDRI;
 202    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 203       UnlockDisplay(dpy);
 204       SyncHandle();
 205       return False;
 206    }
 207
 208    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 209       UnlockDisplay(dpy);
 210       SyncHandle();
 211       return False;
 212    }
 213
 214    *driverName = Xmalloc(rep.driverNameLength + 1);
 215    if (*driverName == NULL) {
 216       _XEatData(dpy,
 217                 ((rep.driverNameLength + 3) & ~3) +
 218                 ((rep.deviceNameLength + 3) & ~3));
 219       UnlockDisplay(dpy);
 220       SyncHandle();
 221       return False;
 222    }
 223    _XReadPad(dpy, *driverName, rep.driverNameLength);
 224    (*driverName)[rep.driverNameLength] = '\0';
 225
 226    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 227    if (*deviceName == NULL) {
 228       Xfree(*driverName);
 229       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 230       UnlockDisplay(dpy);
 231       SyncHandle();
 232       return False;
 233    }
 234    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 235    (*deviceName)[rep.deviceNameLength] = '\0';
 236
 237    UnlockDisplay(dpy);
 238    SyncHandle();
 239
 240    return True;
 241 }
 242
 243 Bool
 244 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 245 {
 246    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 247    xDRI2AuthenticateReq *req;
 248    xDRI2AuthenticateReply rep;
 249
 250    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 251
 252    LockDisplay(dpy);
 253    GetReq(DRI2Authenticate, req);
 254    req->reqType = info->codes->major_opcode;
 255    req->dri2ReqType = X_DRI2Authenticate;
 256    req->window = window;
 257    req->magic = magic;
 258
 259    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 260       UnlockDisplay(dpy);
 261       SyncHandle();
 262       return False;
 263    }
 264
 265    UnlockDisplay(dpy);
 266    SyncHandle();
 267
 268    return rep.authenticated;
 269 }
 270
 271 void
 272 DRI2CreateDrawable(Display * dpy, XID drawable)
 273 {
 274    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 275    xDRI2CreateDrawableReq *req;
 276
 277    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 278
 279    LockDisplay(dpy);
 280    GetReq(DRI2CreateDrawable, req);
 281    req->reqType = info->codes->major_opcode;
 282    req->dri2ReqType = X_DRI2CreateDrawable;
 283    req->drawable = drawable;
 284    UnlockDisplay(dpy);
 285    SyncHandle();
 286 }
 287
 288 void
 289 DRI2DestroyDrawable(Display * dpy, XID drawable)
 290 {
 291    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 292    xDRI2DestroyDrawableReq *req;
 293
 294    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 295
 296    XSync(dpy, False);
 297
 298    LockDisplay(dpy);
 299    GetReq(DRI2DestroyDrawable, req);
 300    req->reqType = info->codes->major_opcode;
 301    req->dri2ReqType = X_DRI2DestroyDrawable;
 302    req->drawable = drawable;
 303    UnlockDisplay(dpy);
 304    SyncHandle();
 305 }
 306
 307 DRI2Buffer *
 308 DRI2GetBuffers(Display * dpy, XID drawable,
 309                int *width, int *height,
 310                unsigned int *attachments, int count, int *outCount)
 311 {
 312    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 313    xDRI2GetBuffersReply rep;
 314    xDRI2GetBuffersReq *req;
 315    DRI2Buffer *buffers;
 316    xDRI2Buffer repBuffer;
 317    CARD32 *p;
 318    int i;
 319
 320    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 321
 322    LockDisplay(dpy);
 323    GetReqExtra(DRI2GetBuffers, count * 4, req);
 324    req->reqType = info->codes->major_opcode;
 325    req->dri2ReqType = X_DRI2GetBuffers;
 326    req->drawable = drawable;
 327    req->count = count;
 328    p = (CARD32 *) & req[1];
 329    for (i = 0; i < count; i++)
 330       p[i] = attachments[i];
 331
 332    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 333       UnlockDisplay(dpy);
 334       SyncHandle();
 335       return NULL;
 336    }
 337
 338    *width = rep.width;
 339    *height = rep.height;
 340    *outCount = rep.count;
 341
 342    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 343    if (buffers == NULL) {
 344       _XEatData(dpy, rep.count * sizeof repBuffer);
 345       UnlockDisplay(dpy);
 346       SyncHandle();
 347       return NULL;
 348    }
 349
 350    for (i = 0; i < rep.count; i++) {
 351       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 352       buffers[i].attachment = repBuffer.attachment;
 353       buffers[i].name = repBuffer.name;
 354       buffers[i].pitch = repBuffer.pitch;
 355       buffers[i].cpp = repBuffer.cpp;
 356       buffers[i].flags = repBuffer.flags;
 357    }
 358
 359    UnlockDisplay(dpy);
 360    SyncHandle();
 361
 362    return buffers;
 363 }
 364
 365
 366 DRI2Buffer *
 367 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 368                          int *width, int *height,
 369                          unsigned int *attachments, int count, int *outCount)
 370 {
 371    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 372    xDRI2GetBuffersReply rep;
 373    xDRI2GetBuffersReq *req;
 374    DRI2Buffer *buffers;
 375    xDRI2Buffer repBuffer;
 376    CARD32 *p;
 377    int i;
 378
 379    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 380
 381    LockDisplay(dpy);
 382    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 383    req->reqType = info->codes->major_opcode;
 384    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 385    req->drawable = drawable;
 386    req->count = count;
 387    p = (CARD32 *) & req[1];
 388    for (i = 0; i < (count * 2); i++)
 389       p[i] = attachments[i];
 390
 391    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 392       UnlockDisplay(dpy);
 393       SyncHandle();
 394       return NULL;
 395    }
 396
 397    *width = rep.width;
 398    *height = rep.height;
 399    *outCount = rep.count;
 400
 401    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 402    if (buffers == NULL) {
 403       _XEatData(dpy, rep.count * sizeof repBuffer);
 404       UnlockDisplay(dpy);
 405       SyncHandle();
 406       return NULL;
 407    }
 408
 409    for (i = 0; i < rep.count; i++) {
 410       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 411       buffers[i].attachment = repBuffer.attachment;
 412       buffers[i].name = repBuffer.name;
 413       buffers[i].pitch = repBuffer.pitch;
 414       buffers[i].cpp = repBuffer.cpp;
 415       buffers[i].flags = repBuffer.flags;
 416    }
 417
 418    UnlockDisplay(dpy);
 419    SyncHandle();
 420
 421    return buffers;
 422 }
 423
 424
 425 void
 426 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 427                CARD32 dest, CARD32 src)
 428 {
 429    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 430    xDRI2CopyRegionReq *req;
 431    xDRI2CopyRegionReply rep;
 432
 433    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 434
 435    LockDisplay(dpy);
 436    GetReq(DRI2CopyRegion, req);
 437    req->reqType = info->codes->major_opcode;
 438    req->dri2ReqType = X_DRI2CopyRegion;
 439    req->drawable = drawable;
 440    req->region = region;
 441    req->dest = dest;
 442    req->src = src;
 443
 444    _XReply(dpy, (xReply *) & rep, 0, xFalse);
 445
 446    UnlockDisplay(dpy);
 447    SyncHandle();
 448 }
 449
 450 static void
 451 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 452              CARD64 remainder)
 453 {
 454     req->target_msc_hi = target >> 32;
 455     req->target_msc_lo = target & 0xffffffff;
 456     req->divisor_hi = divisor >> 32;
 457     req->divisor_lo = divisor & 0xffffffff;
 458     req->remainder_hi = remainder >> 32;
 459     req->remainder_lo = remainder & 0xffffffff;
 460 }
 461
 462 static CARD64
 463 vals_to_card64(CARD32 lo, CARD32 hi)
 464 {
 465     return (CARD64)hi << 32 | lo;
 466 }
 467
 468 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 469                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 470 {
 471     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 472     xDRI2SwapBuffersReq *req;
 473     xDRI2SwapBuffersReply rep;
 474
 475     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 476
 477     LockDisplay(dpy);
 478     GetReq(DRI2SwapBuffers, req);
 479     req->reqType = info->codes->major_opcode;
 480     req->dri2ReqType = X_DRI2SwapBuffers;
 481     req->drawable = drawable;
 482     load_swap_req(req, target_msc, divisor, remainder);
 483
 484     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 485
 486     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 487
 488     UnlockDisplay(dpy);
 489     SyncHandle();
 490 }
 491
 492 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 493                 CARD64 *sbc)
 494 {
 495     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 496     xDRI2GetMSCReq *req;
 497     xDRI2MSCReply rep;
 498
 499     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 500
 501     LockDisplay(dpy);
 502     GetReq(DRI2GetMSC, req);
 503     req->reqType = info->codes->major_opcode;
 504     req->dri2ReqType = X_DRI2GetMSC;
 505     req->drawable = drawable;
 506
 507     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 508         UnlockDisplay(dpy);
 509         SyncHandle();
 510         return False;
 511     }
 512
 513     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 514     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 515     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 516
 517     UnlockDisplay(dpy);
 518     SyncHandle();
 519
 520     return True;
 521 }
 522
 523 static void
 524 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 525              CARD64 remainder)
 526 {
 527     req->target_msc_hi = target >> 32;
 528     req->target_msc_lo = target & 0xffffffff;
 529     req->divisor_hi = divisor >> 32;
 530     req->divisor_lo = divisor & 0xffffffff;
 531     req->remainder_hi = remainder >> 32;
 532     req->remainder_lo = remainder & 0xffffffff;
 533 }
 534
 535 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 536                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 537 {
 538     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 539     xDRI2WaitMSCReq *req;
 540     xDRI2MSCReply rep;
 541
 542     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 543
 544     LockDisplay(dpy);
 545     GetReq(DRI2WaitMSC, req);
 546     req->reqType = info->codes->major_opcode;
 547     req->dri2ReqType = X_DRI2WaitMSC;
 548     req->drawable = drawable;
 549     load_msc_req(req, target_msc, divisor, remainder);
 550
 551     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 552         UnlockDisplay(dpy);
 553         SyncHandle();
 554         return False;
 555     }
 556
 557     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 558     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 559     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 560
 561     UnlockDisplay(dpy);
 562     SyncHandle();
 563
 564     return True;
 565 }
 566
 567 static void
 568 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 569 {
 570     req->target_sbc_hi = target >> 32;
 571     req->target_sbc_lo = target & 0xffffffff;
 572 }
 573
 574 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 575                  CARD64 *msc, CARD64 *sbc)
 576 {
 577     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 578     xDRI2WaitSBCReq *req;
 579     xDRI2MSCReply rep;
 580
 581     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 582
 583     LockDisplay(dpy);
 584     GetReq(DRI2WaitSBC, req);
 585     req->reqType = info->codes->major_opcode;
 586     req->dri2ReqType = X_DRI2WaitSBC;
 587     req->drawable = drawable;
 588     load_sbc_req(req, target_sbc);
 589
 590     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 591         UnlockDisplay(dpy);
 592         SyncHandle();
 593         return False;
 594     }
 595
 596     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 597     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 598     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 599
 600     UnlockDisplay(dpy);
 601     SyncHandle();
 602
 603     return True;
 604 }
 605
 606 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 607 {
 608     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 609     xDRI2SwapIntervalReq *req;
 610
 611     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 612
 613     LockDisplay(dpy);
 614     GetReq(DRI2SwapInterval, req);
 615     req->reqType = info->codes->major_opcode;
 616     req->dri2ReqType = X_DRI2SwapInterval;
 617     req->drawable = drawable;
 618     req->interval = interval;
 619     UnlockDisplay(dpy);
 620     SyncHandle();
 621 }
 622
 623 #endif /* GLX_DIRECT_RENDERING */