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
  45 /* Allow the build to work with an older versions of dri2proto.h and
  46  * dri2tokens.h.
  47  */
  48 #if DRI2_MINOR < 1
  49 #undef DRI2_MINOR
  50 #define DRI2_MINOR 1
  51 #define X_DRI2GetBuffersWithFormat 7
  52 #endif
  53
  54
  55 static char dri2ExtensionName[] = DRI2_NAME;
  56 static XExtensionInfo *dri2Info;
  57 static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info)
  58
  59 static /* const */ XExtensionHooks dri2ExtensionHooks = {
  60   NULL,                   /* create_gc */
  61   NULL,                   /* copy_gc */
  62   NULL,                   /* flush_gc */
  63   NULL,                   /* free_gc */
  64   NULL,                   /* create_font */
  65   NULL,                   /* free_font */
  66   DRI2CloseDisplay,       /* close_display */
  67   NULL,                   /* wire_to_event */
  68   NULL,                   /* event_to_wire */
  69   NULL,                   /* error */
  70   NULL,                   /* error_string */
  71 };
  72
  73 static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay,
  74                                    dri2Info,
  75                                    dri2ExtensionName,
  76                                    &dri2ExtensionHooks,
  77                                    0, NULL)
  78
  79 Bool
  80 DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
  81 {
  82    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
  83
  84    if (XextHasExtension(info)) {
  85       *eventBase = info->codes->first_event;
  86       *errorBase = info->codes->first_error;
  87       return True;
  88    }
  89
  90    return False;
  91 }
  92
  93 Bool
  94 DRI2QueryVersion(Display * dpy, int *major, int *minor)
  95 {
  96    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
  97    xDRI2QueryVersionReply rep;
  98    xDRI2QueryVersionReq *req;
  99
 100    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 101
 102    LockDisplay(dpy);
 103    GetReq(DRI2QueryVersion, req);
 104    req->reqType = info->codes->major_opcode;
 105    req->dri2ReqType = X_DRI2QueryVersion;
 106    req->majorVersion = DRI2_MAJOR;
 107    req->minorVersion = DRI2_MINOR;
 108    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 109       UnlockDisplay(dpy);
 110       SyncHandle();
 111       return False;
 112    }
 113    *major = rep.majorVersion;
 114    *minor = rep.minorVersion;
 115    UnlockDisplay(dpy);
 116    SyncHandle();
 117
 118    return True;
 119 }
 120
 121 Bool
 122 DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 123 {
 124    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 125    xDRI2ConnectReply rep;
 126    xDRI2ConnectReq *req;
 127
 128    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 129
 130    LockDisplay(dpy);
 131    GetReq(DRI2Connect, req);
 132    req->reqType = info->codes->major_opcode;
 133    req->dri2ReqType = X_DRI2Connect;
 134    req->window = window;
 135    req->driverType = DRI2DriverDRI;
 136    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 137       UnlockDisplay(dpy);
 138       SyncHandle();
 139       return False;
 140    }
 141
 142    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 143       UnlockDisplay(dpy);
 144       SyncHandle();
 145       return False;
 146    }
 147
 148    *driverName = Xmalloc(rep.driverNameLength + 1);
 149    if (*driverName == NULL) {
 150       _XEatData(dpy,
 151                 ((rep.driverNameLength + 3) & ~3) +
 152                 ((rep.deviceNameLength + 3) & ~3));
 153       UnlockDisplay(dpy);
 154       SyncHandle();
 155       return False;
 156    }
 157    _XReadPad(dpy, *driverName, rep.driverNameLength);
 158    (*driverName)[rep.driverNameLength] = '\0';
 159
 160    *deviceName = Xmalloc(rep.deviceNameLength + 1);
 161    if (*deviceName == NULL) {
 162       Xfree(*driverName);
 163       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 164       UnlockDisplay(dpy);
 165       SyncHandle();
 166       return False;
 167    }
 168    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 169    (*deviceName)[rep.deviceNameLength] = '\0';
 170
 171    UnlockDisplay(dpy);
 172    SyncHandle();
 173
 174    return True;
 175 }
 176
 177 Bool
 178 DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
 179 {
 180    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 181    xDRI2AuthenticateReq *req;
 182    xDRI2AuthenticateReply rep;
 183
 184    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 185
 186    LockDisplay(dpy);
 187    GetReq(DRI2Authenticate, req);
 188    req->reqType = info->codes->major_opcode;
 189    req->dri2ReqType = X_DRI2Authenticate;
 190    req->window = window;
 191    req->magic = magic;
 192
 193    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 194       UnlockDisplay(dpy);
 195       SyncHandle();
 196       return False;
 197    }
 198
 199    UnlockDisplay(dpy);
 200    SyncHandle();
 201
 202    return rep.authenticated;
 203 }
 204
 205 void
 206 DRI2CreateDrawable(Display * dpy, XID drawable)
 207 {
 208    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 209    xDRI2CreateDrawableReq *req;
 210
 211    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 212
 213    LockDisplay(dpy);
 214    GetReq(DRI2CreateDrawable, req);
 215    req->reqType = info->codes->major_opcode;
 216    req->dri2ReqType = X_DRI2CreateDrawable;
 217    req->drawable = drawable;
 218    UnlockDisplay(dpy);
 219    SyncHandle();
 220 }
 221
 222 void
 223 DRI2DestroyDrawable(Display * dpy, XID drawable)
 224 {
 225    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 226    xDRI2DestroyDrawableReq *req;
 227
 228    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 229
 230    XSync(dpy, False);
 231
 232    LockDisplay(dpy);
 233    GetReq(DRI2DestroyDrawable, req);
 234    req->reqType = info->codes->major_opcode;
 235    req->dri2ReqType = X_DRI2DestroyDrawable;
 236    req->drawable = drawable;
 237    UnlockDisplay(dpy);
 238    SyncHandle();
 239 }
 240
 241 DRI2Buffer *
 242 DRI2GetBuffers(Display * dpy, XID drawable,
 243                int *width, int *height,
 244                unsigned int *attachments, int count, int *outCount)
 245 {
 246    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 247    xDRI2GetBuffersReply rep;
 248    xDRI2GetBuffersReq *req;
 249    DRI2Buffer *buffers;
 250    xDRI2Buffer repBuffer;
 251    CARD32 *p;
 252    int i;
 253
 254    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 255
 256    LockDisplay(dpy);
 257    GetReqExtra(DRI2GetBuffers, count * 4, req);
 258    req->reqType = info->codes->major_opcode;
 259    req->dri2ReqType = X_DRI2GetBuffers;
 260    req->drawable = drawable;
 261    req->count = count;
 262    p = (CARD32 *) & req[1];
 263    for (i = 0; i < count; i++)
 264       p[i] = attachments[i];
 265
 266    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 267       UnlockDisplay(dpy);
 268       SyncHandle();
 269       return NULL;
 270    }
 271
 272    *width = rep.width;
 273    *height = rep.height;
 274    *outCount = rep.count;
 275
 276    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 277    if (buffers == NULL) {
 278       _XEatData(dpy, rep.count * sizeof repBuffer);
 279       UnlockDisplay(dpy);
 280       SyncHandle();
 281       return NULL;
 282    }
 283
 284    for (i = 0; i < rep.count; i++) {
 285       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 286       buffers[i].attachment = repBuffer.attachment;
 287       buffers[i].name = repBuffer.name;
 288       buffers[i].pitch = repBuffer.pitch;
 289       buffers[i].cpp = repBuffer.cpp;
 290       buffers[i].flags = repBuffer.flags;
 291    }
 292
 293    UnlockDisplay(dpy);
 294    SyncHandle();
 295
 296    return buffers;
 297 }
 298
 299
 300 DRI2Buffer *
 301 DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
 302                          int *width, int *height,
 303                          unsigned int *attachments, int count, int *outCount)
 304 {
 305    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 306    xDRI2GetBuffersReply rep;
 307    xDRI2GetBuffersReq *req;
 308    DRI2Buffer *buffers;
 309    xDRI2Buffer repBuffer;
 310    CARD32 *p;
 311    int i;
 312
 313    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 314
 315    LockDisplay(dpy);
 316    GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
 317    req->reqType = info->codes->major_opcode;
 318    req->dri2ReqType = X_DRI2GetBuffersWithFormat;
 319    req->drawable = drawable;
 320    req->count = count;
 321    p = (CARD32 *) & req[1];
 322    for (i = 0; i < (count * 2); i++)
 323       p[i] = attachments[i];
 324
 325    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
 326       UnlockDisplay(dpy);
 327       SyncHandle();
 328       return NULL;
 329    }
 330
 331    *width = rep.width;
 332    *height = rep.height;
 333    *outCount = rep.count;
 334
 335    buffers = Xmalloc(rep.count * sizeof buffers[0]);
 336    if (buffers == NULL) {
 337       _XEatData(dpy, rep.count * sizeof repBuffer);
 338       UnlockDisplay(dpy);
 339       SyncHandle();
 340       return NULL;
 341    }
 342
 343    for (i = 0; i < rep.count; i++) {
 344       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 345       buffers[i].attachment = repBuffer.attachment;
 346       buffers[i].name = repBuffer.name;
 347       buffers[i].pitch = repBuffer.pitch;
 348       buffers[i].cpp = repBuffer.cpp;
 349       buffers[i].flags = repBuffer.flags;
 350    }
 351
 352    UnlockDisplay(dpy);
 353    SyncHandle();
 354
 355    return buffers;
 356 }
 357
 358
 359 void
 360 DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
 361                CARD32 dest, CARD32 src)
 362 {
 363    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 364    xDRI2CopyRegionReq *req;
 365    xDRI2CopyRegionReply rep;
 366
 367    XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 368
 369    LockDisplay(dpy);
 370    GetReq(DRI2CopyRegion, req);
 371    req->reqType = info->codes->major_opcode;
 372    req->dri2ReqType = X_DRI2CopyRegion;
 373    req->drawable = drawable;
 374    req->region = region;
 375    req->dest = dest;
 376    req->src = src;
 377
 378    _XReply(dpy, (xReply *) & rep, 0, xFalse);
 379
 380    UnlockDisplay(dpy);
 381    SyncHandle();
 382 }
 383
 384 static void
 385 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
 386              CARD64 remainder)
 387 {
 388     req->target_msc_hi = target >> 32;
 389     req->target_msc_lo = target & 0xffffffff;
 390     req->divisor_hi = divisor >> 32;
 391     req->divisor_lo = divisor & 0xffffffff;
 392     req->remainder_hi = remainder >> 32;
 393     req->remainder_lo = remainder & 0xffffffff;
 394 }
 395
 396 static CARD64
 397 vals_to_card64(CARD32 lo, CARD32 hi)
 398 {
 399     return (CARD64)hi << 32 | lo;
 400 }
 401
 402 void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
 403                      CARD64 divisor, CARD64 remainder, CARD64 *count)
 404 {
 405     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 406     xDRI2SwapBuffersReq *req;
 407     xDRI2SwapBuffersReply rep;
 408
 409     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 410
 411     LockDisplay(dpy);
 412     GetReq(DRI2SwapBuffers, req);
 413     req->reqType = info->codes->major_opcode;
 414     req->dri2ReqType = X_DRI2SwapBuffers;
 415     req->drawable = drawable;
 416     load_swap_req(req, target_msc, divisor, remainder);
 417
 418     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 419
 420     *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
 421
 422     UnlockDisplay(dpy);
 423     SyncHandle();
 424 }
 425
 426 Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
 427                 CARD64 *sbc)
 428 {
 429     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 430     xDRI2GetMSCReq *req;
 431     xDRI2MSCReply rep;
 432
 433     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 434
 435     LockDisplay(dpy);
 436     GetReq(DRI2GetMSC, req);
 437     req->reqType = info->codes->major_opcode;
 438     req->dri2ReqType = X_DRI2GetMSC;
 439     req->drawable = drawable;
 440
 441     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 442         UnlockDisplay(dpy);
 443         SyncHandle();
 444         return False;
 445     }
 446
 447     *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
 448     *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
 449     *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
 450
 451     UnlockDisplay(dpy);
 452     SyncHandle();
 453
 454     return True;
 455 }
 456
 457 static void
 458 load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
 459              CARD64 remainder)
 460 {
 461     req->target_msc_hi = target >> 32;
 462     req->target_msc_lo = target & 0xffffffff;
 463     req->divisor_hi = divisor >> 32;
 464     req->divisor_lo = divisor & 0xffffffff;
 465     req->remainder_hi = remainder >> 32;
 466     req->remainder_lo = remainder & 0xffffffff;
 467 }
 468
 469 Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
 470                  CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 471 {
 472     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 473     xDRI2WaitMSCReq *req;
 474     xDRI2MSCReply rep;
 475
 476     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 477
 478     LockDisplay(dpy);
 479     GetReq(DRI2WaitMSC, req);
 480     req->reqType = info->codes->major_opcode;
 481     req->dri2ReqType = X_DRI2WaitMSC;
 482     req->drawable = drawable;
 483     load_msc_req(req, target_msc, divisor, remainder);
 484
 485     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 486         UnlockDisplay(dpy);
 487         SyncHandle();
 488         return False;
 489     }
 490
 491     *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
 492     *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
 493     *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
 494
 495     UnlockDisplay(dpy);
 496     SyncHandle();
 497
 498     return True;
 499 }
 500
 501 static void
 502 load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
 503 {
 504     req->target_sbc_hi = target >> 32;
 505     req->target_sbc_lo = target & 0xffffffff;
 506 }
 507
 508 Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
 509                  CARD64 *msc, CARD64 *sbc)
 510 {
 511     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 512     xDRI2WaitSBCReq *req;
 513     xDRI2MSCReply rep;
 514
 515     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 516
 517     LockDisplay(dpy);
 518     GetReq(DRI2WaitSBC, req);
 519     req->reqType = info->codes->major_opcode;
 520     req->dri2ReqType = X_DRI2WaitSBC;
 521     req->drawable = drawable;
 522     load_sbc_req(req, target_sbc);
 523
 524     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 525         UnlockDisplay(dpy);
 526         SyncHandle();
 527         return False;
 528     }
 529
 530     *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
 531     *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
 532     *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 533
 534     UnlockDisplay(dpy);
 535     SyncHandle();
 536
 537     return True;
 538 }
 539
 540 void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 541 {
 542     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 543     xDRI2SwapIntervalReq *req;
 544
 545     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 546
 547     LockDisplay(dpy);
 548     GetReq(DRI2SwapInterval, req);
 549     req->reqType = info->codes->major_opcode;
 550     req->dri2ReqType = X_DRI2SwapInterval;
 551     req->drawable = drawable;
 552     req->interval = interval;
 553     UnlockDisplay(dpy);
 554     SyncHandle();
 555 }
 556
 557 #endif /* GLX_DIRECT_RENDERING */