src/glx/dri2_glx.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 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
  34
  35 #include <X11/Xlib.h>
  36 #include <X11/extensions/Xfixes.h>
  37 #include <X11/extensions/Xdamage.h>
  38 #include "glapi.h"
  39 #include "glxclient.h"
  40 #include <X11/extensions/dri2proto.h>
  41 #include "xf86dri.h"
  42 #include <dlfcn.h>
  43 #include <fcntl.h>
  44 #include <unistd.h>
  45 #include <sys/types.h>
  46 #include <sys/mman.h>
  47 #include "xf86drm.h"
  48 #include "dri2.h"
  49 #include "dri_common.h"
  50 #include "../../mesa/drivers/dri/common/dri_util.h"
  51
  52 #undef DRI2_MINOR
  53 #define DRI2_MINOR 1
  54
  55 typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate;
  56 typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate;
  57 typedef struct __GLXDRIdrawablePrivateRec __GLXDRIdrawablePrivate;
  58
  59 struct __GLXDRIdisplayPrivateRec
  60 {
  61    __GLXDRIdisplay base;
  62
  63    /*
  64     ** XFree86-DRI version information
  65     */
  66    int driMajor;
  67    int driMinor;
  68    int driPatch;
  69    int swapAvailable;
  70    int invalidateAvailable;
  71 };
  72
  73 struct __GLXDRIcontextPrivateRec
  74 {
  75    __GLXDRIcontext base;
  76    __DRIcontext *driContext;
  77    __GLXscreenConfigs *psc;
  78 };
  79
  80 struct __GLXDRIdrawablePrivateRec
  81 {
  82    __GLXDRIdrawable base;
  83    __DRIbuffer buffers[5];
  84    int bufferCount;
  85    int width, height;
  86    int have_back;
  87    int have_fake_front;
  88    int swap_interval;
  89 };
  90
  91 static void dri2WaitX(__GLXDRIdrawable * pdraw);
  92
  93 static void
  94 dri2DestroyContext(__GLXDRIcontext * context,
  95                    __GLXscreenConfigs * psc, Display * dpy)
  96 {
  97    __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context;
  98    const __DRIcoreExtension *core = pcp->psc->core;
  99
 100    (*core->destroyContext) (pcp->driContext);
 101
 102    Xfree(pcp);
 103 }
 104
 105 static Bool
 106 dri2BindContext(__GLXDRIcontext * context,
 107                 __GLXDRIdrawable * draw, __GLXDRIdrawable * read)
 108 {
 109    __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context;
 110    const __DRIcoreExtension *core = pcp->psc->core;
 111
 112    return (*core->bindContext) (pcp->driContext,
 113                                 draw->driDrawable, read->driDrawable);
 114 }
 115
 116 static void
 117 dri2UnbindContext(__GLXDRIcontext * context)
 118 {
 119    __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context;
 120    const __DRIcoreExtension *core = pcp->psc->core;
 121
 122    (*core->unbindContext) (pcp->driContext);
 123 }
 124
 125 static __GLXDRIcontext *
 126 dri2CreateContext(__GLXscreenConfigs * psc,
 127                   const __GLcontextModes * mode,
 128                   GLXContext gc, GLXContext shareList, int renderType)
 129 {
 130    __GLXDRIcontextPrivate *pcp, *pcp_shared;
 131    __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode;
 132    __DRIcontext *shared = NULL;
 133
 134    if (shareList) {
 135       pcp_shared = (__GLXDRIcontextPrivate *) shareList->driContext;
 136       shared = pcp_shared->driContext;
 137    }
 138
 139    pcp = Xmalloc(sizeof *pcp);
 140    if (pcp == NULL)
 141       return NULL;
 142
 143    pcp->psc = psc;
 144    pcp->driContext =
 145       (*psc->dri2->createNewContext) (psc->__driScreen,
 146                                       config->driConfig, shared, pcp);
 147    gc->__driContext = pcp->driContext;
 148
 149    if (pcp->driContext == NULL) {
 150       Xfree(pcp);
 151       return NULL;
 152    }
 153
 154    pcp->base.destroyContext = dri2DestroyContext;
 155    pcp->base.bindContext = dri2BindContext;
 156    pcp->base.unbindContext = dri2UnbindContext;
 157
 158    return &pcp->base;
 159 }
 160
 161 static void
 162 dri2DestroyDrawable(__GLXDRIdrawable * pdraw)
 163 {
 164    const __DRIcoreExtension *core = pdraw->psc->core;
 165
 166    (*core->destroyDrawable) (pdraw->driDrawable);
 167    DRI2DestroyDrawable(pdraw->psc->dpy, pdraw->xDrawable);
 168    Xfree(pdraw);
 169 }
 170
 171 static __GLXDRIdrawable *
 172 dri2CreateDrawable(__GLXscreenConfigs * psc,
 173                    XID xDrawable,
 174                    GLXDrawable drawable, const __GLcontextModes * modes)
 175 {
 176    __GLXDRIdrawablePrivate *pdraw;
 177    __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes;
 178    __GLXdisplayPrivate *dpyPriv;
 179    __GLXDRIdisplayPrivate *pdp;
 180
 181    pdraw = Xmalloc(sizeof(*pdraw));
 182    if (!pdraw)
 183       return NULL;
 184
 185    pdraw->base.destroyDrawable = dri2DestroyDrawable;
 186    pdraw->base.xDrawable = xDrawable;
 187    pdraw->base.drawable = drawable;
 188    pdraw->base.psc = psc;
 189    pdraw->bufferCount = 0;
 190    pdraw->swap_interval = 1;
 191
 192    DRI2CreateDrawable(psc->dpy, xDrawable);
 193
 194    dpyPriv = __glXInitialize(psc->dpy);
 195    pdp = (__GLXDRIdisplayPrivate *)dpyPriv->dri2Display;;
 196    /* Create a new drawable */
 197    pdraw->base.driDrawable =
 198       (*psc->dri2->createNewDrawable) (psc->__driScreen,
 199                                        config->driConfig, pdraw);
 200
 201    if (!pdraw->base.driDrawable) {
 202       DRI2DestroyDrawable(psc->dpy, xDrawable);
 203       Xfree(pdraw);
 204       return NULL;
 205    }
 206
 207 #ifdef X_DRI2SwapInterval
 208    /*
 209     * Make sure server has the same swap interval we do for the new
 210     * drawable.
 211     */
 212    if (pdp->swapAvailable)
 213       DRI2SwapInterval(psc->dpy, xDrawable, pdraw->swap_interval);
 214 #endif
 215
 216    return &pdraw->base;
 217 }
 218
 219 #ifdef X_DRI2GetMSC
 220
 221 static int
 222 dri2DrawableGetMSC(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw,
 223                    int64_t *ust, int64_t *msc, int64_t *sbc)
 224 {
 225    return DRI2GetMSC(psc->dpy, pdraw->xDrawable, ust, msc, sbc);
 226 }
 227
 228 #endif
 229
 230
 231 #ifdef X_DRI2WaitMSC
 232
 233 static int
 234 dri2WaitForMSC(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor,
 235                int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc)
 236 {
 237    return DRI2WaitMSC(pdraw->psc->dpy, pdraw->xDrawable, target_msc, divisor,
 238                       remainder, ust, msc, sbc);
 239 }
 240
 241 static int
 242 dri2WaitForSBC(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
 243                int64_t *msc, int64_t *sbc)
 244 {
 245    return DRI2WaitSBC(pdraw->psc->dpy, pdraw->xDrawable, target_sbc, ust, msc,
 246                       sbc);
 247 }
 248
 249 #endif /* X_DRI2WaitMSC */
 250
 251 static void
 252 dri2CopySubBuffer(__GLXDRIdrawable *pdraw, int x, int y, int width, int height)
 253 {
 254    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
 255    XRectangle xrect;
 256    XserverRegion region;
 257
 258    /* Check we have the right attachments */
 259    if (!priv->have_back)
 260       return;
 261
 262    xrect.x = x;
 263    xrect.y = priv->height - y - height;
 264    xrect.width = width;
 265    xrect.height = height;
 266
 267 #ifdef __DRI2_FLUSH
 268    if (pdraw->psc->f)
 269       (*pdraw->psc->f->flush) (pdraw->driDrawable);
 270 #endif
 271
 272    region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
 273    /* should get a fence ID back from here at some point */
 274    DRI2CopyRegion(pdraw->psc->dpy, pdraw->xDrawable, region,
 275                   DRI2BufferFrontLeft, DRI2BufferBackLeft);
 276    XFixesDestroyRegion(pdraw->psc->dpy, region);
 277
 278    /* Refresh the fake front (if present) after we just damaged the real
 279     * front.
 280     */
 281    dri2WaitX(pdraw);
 282 }
 283
 284 static void
 285 dri2WaitX(__GLXDRIdrawable *pdraw)
 286 {
 287    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
 288    XRectangle xrect;
 289    XserverRegion region;
 290
 291    /* Check we have the right attachments */
 292    if (!priv->have_fake_front)
 293       return;
 294
 295    xrect.x = 0;
 296    xrect.y = 0;
 297    xrect.width = priv->width;
 298    xrect.height = priv->height;
 299
 300 #ifdef __DRI2_FLUSH
 301    if (pdraw->psc->f)
 302       (*pdraw->psc->f->flush) (pdraw->driDrawable);
 303 #endif
 304
 305    region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
 306    DRI2CopyRegion(pdraw->psc->dpy, pdraw->xDrawable, region,
 307                   DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft);
 308    XFixesDestroyRegion(pdraw->psc->dpy, region);
 309 }
 310
 311 static void
 312 dri2WaitGL(__GLXDRIdrawable * pdraw)
 313 {
 314    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
 315    XRectangle xrect;
 316    XserverRegion region;
 317
 318    if (!priv->have_fake_front)
 319       return;
 320
 321    xrect.x = 0;
 322    xrect.y = 0;
 323    xrect.width = priv->width;
 324    xrect.height = priv->height;
 325
 326 #ifdef __DRI2_FLUSH
 327    if (pdraw->psc->f)
 328       (*pdraw->psc->f->flush) (pdraw->driDrawable);
 329 #endif
 330
 331    region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
 332    DRI2CopyRegion(pdraw->psc->dpy, pdraw->xDrawable, region,
 333                   DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
 334    XFixesDestroyRegion(pdraw->psc->dpy, region);
 335 }
 336
 337 static void
 338 dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate)
 339 {
 340    __GLXDRIdrawablePrivate *pdraw = loaderPrivate;
 341    __GLXdisplayPrivate *priv = __glXInitialize(pdraw->base.psc->dpy);
 342    __GLXDRIdisplayPrivate *pdp = (__GLXDRIdisplayPrivate *)priv->dri2Display;
 343
 344    /* Old servers don't send invalidate events */
 345    if (!pdp->invalidateAvailable)
 346        dri2InvalidateBuffers(priv->dpy, pdraw->base.drawable);
 347
 348    dri2WaitGL(loaderPrivate);
 349 }
 350
 351
 352 static void
 353 dri2DestroyScreen(__GLXscreenConfigs * psc)
 354 {
 355    /* Free the direct rendering per screen data */
 356    (*psc->core->destroyScreen) (psc->__driScreen);
 357    close(psc->fd);
 358    psc->__driScreen = NULL;
 359 }
 360
 361 /**
 362  * Process list of buffer received from the server
 363  *
 364  * Processes the list of buffers received in a reply from the server to either
 365  * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
 366  */
 367 static void
 368 process_buffers(__GLXDRIdrawablePrivate * pdraw, DRI2Buffer * buffers,
 369                 unsigned count)
 370 {
 371    int i;
 372
 373    pdraw->bufferCount = count;
 374    pdraw->have_fake_front = 0;
 375    pdraw->have_back = 0;
 376
 377    /* This assumes the DRI2 buffer attachment tokens matches the
 378     * __DRIbuffer tokens. */
 379    for (i = 0; i < count; i++) {
 380       pdraw->buffers[i].attachment = buffers[i].attachment;
 381       pdraw->buffers[i].name = buffers[i].name;
 382       pdraw->buffers[i].pitch = buffers[i].pitch;
 383       pdraw->buffers[i].cpp = buffers[i].cpp;
 384       pdraw->buffers[i].flags = buffers[i].flags;
 385       if (pdraw->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
 386          pdraw->have_fake_front = 1;
 387       if (pdraw->buffers[i].attachment == __DRI_BUFFER_BACK_LEFT)
 388          pdraw->have_back = 1;
 389    }
 390
 391 }
 392
 393 static int64_t
 394 dri2SwapBuffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor,
 395                 int64_t remainder)
 396 {
 397     __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
 398     __GLXdisplayPrivate *dpyPriv = __glXInitialize(priv->base.psc->dpy);
 399     __GLXDRIdisplayPrivate *pdp =
 400         (__GLXDRIdisplayPrivate *)dpyPriv->dri2Display;
 401     int64_t ret;
 402
 403 #ifdef __DRI2_FLUSH
 404     if (pdraw->psc->f)
 405         (*pdraw->psc->f->flush)(pdraw->driDrawable);
 406 #endif
 407
 408     /* Old servers don't send invalidate events */
 409     if (!pdp->invalidateAvailable)
 410        dri2InvalidateBuffers(dpyPriv->dpy, pdraw->drawable);
 411
 412     /* Old servers can't handle swapbuffers */
 413     if (!pdp->swapAvailable) {
 414        dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height);
 415        return 0;
 416     }
 417
 418 #ifdef X_DRI2SwapBuffers
 419     DRI2SwapBuffers(pdraw->psc->dpy, pdraw->xDrawable, target_msc, divisor,
 420                     remainder, &ret);
 421 #endif
 422
 423     return ret;
 424 }
 425
 426 static __DRIbuffer *
 427 dri2GetBuffers(__DRIdrawable * driDrawable,
 428                int *width, int *height,
 429                unsigned int *attachments, int count,
 430                int *out_count, void *loaderPrivate)
 431 {
 432    __GLXDRIdrawablePrivate *pdraw = loaderPrivate;
 433    DRI2Buffer *buffers;
 434
 435    buffers = DRI2GetBuffers(pdraw->base.psc->dpy, pdraw->base.xDrawable,
 436                             width, height, attachments, count, out_count);
 437    if (buffers == NULL)
 438       return NULL;
 439
 440    pdraw->width = *width;
 441    pdraw->height = *height;
 442    process_buffers(pdraw, buffers, *out_count);
 443
 444    Xfree(buffers);
 445
 446    return pdraw->buffers;
 447 }
 448
 449 static __DRIbuffer *
 450 dri2GetBuffersWithFormat(__DRIdrawable * driDrawable,
 451                          int *width, int *height,
 452                          unsigned int *attachments, int count,
 453                          int *out_count, void *loaderPrivate)
 454 {
 455    __GLXDRIdrawablePrivate *pdraw = loaderPrivate;
 456    DRI2Buffer *buffers;
 457
 458    buffers = DRI2GetBuffersWithFormat(pdraw->base.psc->dpy,
 459                                       pdraw->base.xDrawable,
 460                                       width, height, attachments,
 461                                       count, out_count);
 462    if (buffers == NULL)
 463       return NULL;
 464
 465    pdraw->width = *width;
 466    pdraw->height = *height;
 467    process_buffers(pdraw, buffers, *out_count);
 468
 469    Xfree(buffers);
 470
 471    return pdraw->buffers;
 472 }
 473
 474 #ifdef X_DRI2SwapInterval
 475
 476 static void
 477 dri2SetSwapInterval(__GLXDRIdrawable *pdraw, int interval)
 478 {
 479    __GLXDRIdrawablePrivate *priv =  (__GLXDRIdrawablePrivate *) pdraw;
 480
 481    DRI2SwapInterval(priv->base.psc->dpy, pdraw->xDrawable, interval);
 482    priv->swap_interval = interval;
 483 }
 484
 485 static unsigned int
 486 dri2GetSwapInterval(__GLXDRIdrawable *pdraw)
 487 {
 488    __GLXDRIdrawablePrivate *priv =  (__GLXDRIdrawablePrivate *) pdraw;
 489
 490   return priv->swap_interval;
 491 }
 492
 493 #endif /* X_DRI2SwapInterval */
 494
 495 static const __DRIdri2LoaderExtension dri2LoaderExtension = {
 496    {__DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION},
 497    dri2GetBuffers,
 498    dri2FlushFrontBuffer,
 499    dri2GetBuffersWithFormat,
 500 };
 501
 502 static const __DRIdri2LoaderExtension dri2LoaderExtension_old = {
 503    {__DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION},
 504    dri2GetBuffers,
 505    dri2FlushFrontBuffer,
 506    NULL,
 507 };
 508
 509 static const __DRIextension *loader_extensions[] = {
 510    &dri2LoaderExtension.base,
 511    &systemTimeExtension.base,
 512    NULL
 513 };
 514
 515 static const __DRIextension *loader_extensions_old[] = {
 516    &dri2LoaderExtension_old.base,
 517    &systemTimeExtension.base,
 518    NULL
 519 };
 520
 521 _X_HIDDEN void
 522 dri2InvalidateBuffers(Display *dpy, XID drawable)
 523 {
 524    __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, NULL);
 525
 526 #if __DRI2_FLUSH_VERSION >= 3
 527    if (pdraw && pdraw->psc->f)
 528        pdraw->psc->f->invalidate(pdraw->driDrawable);
 529 #endif
 530 }
 531
 532 static __GLXDRIscreen *
 533 dri2CreateScreen(__GLXscreenConfigs * psc, int screen,
 534                  __GLXdisplayPrivate * priv)
 535 {
 536    const __DRIconfig **driver_configs;
 537    const __DRIextension **extensions;
 538    const __GLXDRIdisplayPrivate *const pdp = (__GLXDRIdisplayPrivate *)
 539       priv->dri2Display;
 540    __GLXDRIscreen *psp;
 541    char *driverName, *deviceName;
 542    drm_magic_t magic;
 543    int i;
 544
 545    psp = Xmalloc(sizeof *psp);
 546    if (psp == NULL)
 547       return NULL;
 548
 549    if (!DRI2Connect(psc->dpy, RootWindow(psc->dpy, screen),
 550                     &driverName, &deviceName)) {
 551       XFree(psp);
 552       return NULL;
 553    }
 554
 555    psc->driver = driOpenDriver(driverName);
 556    if (psc->driver == NULL) {
 557       ErrorMessageF("driver pointer missing\n");
 558       goto handle_error;
 559    }
 560
 561    extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS);
 562    if (extensions == NULL) {
 563       ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
 564       goto handle_error;
 565    }
 566
 567    for (i = 0; extensions[i]; i++) {
 568       if (strcmp(extensions[i]->name, __DRI_CORE) == 0)
 569          psc->core = (__DRIcoreExtension *) extensions[i];
 570       if (strcmp(extensions[i]->name, __DRI_DRI2) == 0)
 571          psc->dri2 = (__DRIdri2Extension *) extensions[i];
 572    }
 573
 574    if (psc->core == NULL || psc->dri2 == NULL) {
 575       ErrorMessageF("core dri or dri2 extension not found\n");
 576       goto handle_error;
 577    }
 578
 579    psc->fd = open(deviceName, O_RDWR);
 580    if (psc->fd < 0) {
 581       ErrorMessageF("failed to open drm device: %s\n", strerror(errno));
 582       goto handle_error;
 583    }
 584
 585    if (drmGetMagic(psc->fd, &magic)) {
 586       ErrorMessageF("failed to get magic\n");
 587       goto handle_error;
 588    }
 589
 590    if (!DRI2Authenticate(psc->dpy, RootWindow(psc->dpy, screen), magic)) {
 591       ErrorMessageF("failed to authenticate magic %d\n", magic);
 592       goto handle_error;
 593    }
 594
 595    /* If the server does not support the protocol for
 596     * DRI2GetBuffersWithFormat, don't supply that interface to the driver.
 597     */
 598    psc->__driScreen =
 599       psc->dri2->createNewScreen(screen, psc->fd, ((pdp->driMinor < 1)
 600                                                    ? loader_extensions_old
 601                                                    : loader_extensions),
 602                                  &driver_configs, psc);
 603
 604    if (psc->__driScreen == NULL) {
 605       ErrorMessageF("failed to create dri screen\n");
 606       goto handle_error;
 607    }
 608
 609    driBindCommonExtensions(psc);
 610    dri2BindExtensions(psc);
 611
 612    psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
 613    psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
 614
 615    psc->driver_configs = driver_configs;
 616
 617    psp->destroyScreen = dri2DestroyScreen;
 618    psp->createContext = dri2CreateContext;
 619    psp->createDrawable = dri2CreateDrawable;
 620    psp->swapBuffers = dri2SwapBuffers;
 621    psp->waitGL = dri2WaitGL;
 622    psp->waitX = dri2WaitX;
 623    psp->getDrawableMSC = NULL;
 624    psp->waitForMSC = NULL;
 625    psp->waitForSBC = NULL;
 626    psp->setSwapInterval = NULL;
 627    psp->getSwapInterval = NULL;
 628
 629    if (pdp->driMinor >= 2) {
 630 #ifdef X_DRI2GetMSC
 631       psp->getDrawableMSC = dri2DrawableGetMSC;
 632 #endif
 633 #ifdef X_DRI2WaitMSC
 634       psp->waitForMSC = dri2WaitForMSC;
 635       psp->waitForSBC = dri2WaitForSBC;
 636 #endif
 637 #ifdef X_DRI2SwapInterval
 638       psp->setSwapInterval = dri2SetSwapInterval;
 639       psp->getSwapInterval = dri2GetSwapInterval;
 640 #endif
 641 #if defined(X_DRI2GetMSC) && defined(X_DRI2WaitMSC) && defined(X_DRI2SwapInterval)
 642       __glXEnableDirectExtension(psc, "GLX_OML_sync_control");
 643 #endif
 644    }
 645
 646    /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
 647     * available.*/
 648    psp->copySubBuffer = dri2CopySubBuffer;
 649    __glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer");
 650
 651    Xfree(driverName);
 652    Xfree(deviceName);
 653
 654    return psp;
 655
 656 handle_error:
 657    Xfree(driverName);
 658    Xfree(deviceName);
 659    XFree(psp);
 660
 661    /* FIXME: clean up here */
 662
 663    return NULL;
 664 }
 665
 666 /* Called from __glXFreeDisplayPrivate.
 667  */
 668 static void
 669 dri2DestroyDisplay(__GLXDRIdisplay * dpy)
 670 {
 671    Xfree(dpy);
 672 }
 673
 674 /*
 675  * Allocate, initialize and return a __DRIdisplayPrivate object.
 676  * This is called from __glXInitialize() when we are given a new
 677  * display pointer.
 678  */
 679 _X_HIDDEN __GLXDRIdisplay *
 680 dri2CreateDisplay(Display * dpy)
 681 {
 682    __GLXDRIdisplayPrivate *pdp;
 683    int eventBase, errorBase;
 684
 685    if (!DRI2QueryExtension(dpy, &eventBase, &errorBase))
 686       return NULL;
 687
 688    pdp = Xmalloc(sizeof *pdp);
 689    if (pdp == NULL)
 690       return NULL;
 691
 692    if (!DRI2QueryVersion(dpy, &pdp->driMajor, &pdp->driMinor)) {
 693       Xfree(pdp);
 694       return NULL;
 695    }
 696
 697    pdp->driPatch = 0;
 698    pdp->swapAvailable = (pdp->driMinor >= 2);
 699    pdp->invalidateAvailable = (pdp->driMinor >= 3);
 700
 701    pdp->base.destroyDisplay = dri2DestroyDisplay;
 702    pdp->base.createScreen = dri2CreateScreen;
 703
 704    return &pdp->base;
 705 }
 706
 707 #endif /* GLX_DIRECT_RENDERING */