synfig-osx/trunk/launcher/dri-surface.c

   1 /* $XFree86: xc/programs/Xserver/GL/dri/dri.c,v 1.34 2001/12/10 19:07:19 dawes Exp $ */
   2 /**************************************************************************
   3
   4 Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   5 Copyright 2000 VA Linux Systems, Inc.
   6 Copyright (c) 2002 Apple Computer, Inc.
   7 All Rights Reserved.
   8
   9 Permission is hereby granted, free of charge, to any person obtaining a
  10 copy of this software and associated documentation files (the
  11 "Software"), to deal in the Software without restriction, including
  12 without limitation the rights to use, copy, modify, merge, publish,
  13 distribute, sub license, and/or sell copies of the Software, and to
  14 permit persons to whom the Software is furnished to do so, subject to
  15 the following conditions:
  16
  17 The above copyright notice and this permission notice (including the
  18 next paragraph) shall be included in all copies or substantial portions
  19 of the Software.
  20
  21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  22 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  24 IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  25 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  26 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  27 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28
  29 **************************************************************************/
  30
  31 /*
  32  * Authors:
  33  *   Jens Owen <jens@valinux.com>
  34  *   Rickard E. (Rik) Faith <faith@valinux.com>
  35  *
  36  */
  37
  38 #ifdef XFree86LOADER
  39 #include "xf86.h"
  40 #include "xf86_ansic.h"
  41 #else
  42 #include <sys/time.h>
  43 #include <unistd.h>
  44 #endif
  45
  46 #define NEED_REPLIES
  47 #define NEED_EVENTS
  48 #include "X.h"
  49 #include "Xproto.h"
  50 #include "misc.h"
  51 #include "dixstruct.h"
  52 #include "extnsionst.h"
  53 #include "colormapst.h"
  54 #include "cursorstr.h"
  55 #include "scrnintstr.h"
  56 #include "windowstr.h"
  57 #include "servermd.h"
  58 #define _APPLEDRI_SERVER_
  59 #include "appledristr.h"
  60 #include "swaprep.h"
  61 #include "dri-surface.h"
  62 #include "dristruct.h"
  63 #include "mi.h"
  64 #include "mipointer.h"
  65 #include "rootless-common.h"
  66 #include "x-hash.h"
  67 #include "x-hook.h"
  68
  69 #include <AvailabilityMacros.h>
  70
  71 static int DRIScreenPrivIndex = -1;
  72 static int DRIWindowPrivIndex = -1;
  73 static int DRIPixmapPrivIndex = -1;
  74 static unsigned long DRIGeneration = 0;
  75
  76 static RESTYPE DRIDrawablePrivResType;
  77
  78 static x_hash_table *surface_hash;      /* maps surface ids -> drawablePrivs */
  79
  80 Bool
  81 DRIScreenInit(ScreenPtr pScreen)
  82 {
  83     DRIScreenPrivPtr    pDRIPriv;
  84     int                 i;
  85
  86     if (DRIGeneration != serverGeneration) {
  87         if ((DRIScreenPrivIndex = AllocateScreenPrivateIndex()) < 0)
  88             return FALSE;
  89         DRIGeneration = serverGeneration;
  90     }
  91
  92     pDRIPriv = (DRIScreenPrivPtr) xcalloc(1, sizeof(DRIScreenPrivRec));
  93     if (!pDRIPriv) {
  94         pScreen->devPrivates[DRIScreenPrivIndex].ptr = NULL;
  95         return FALSE;
  96     }
  97
  98     pScreen->devPrivates[DRIScreenPrivIndex].ptr = (pointer) pDRIPriv;
  99     pDRIPriv->directRenderingSupport = TRUE;
 100     pDRIPriv->nrWindows = 0;
 101
 102     /* Initialize drawable tables */
 103     for( i=0; i < DRI_MAX_DRAWABLES; i++) {
 104         pDRIPriv->DRIDrawables[i] = NULL;
 105     }
 106
 107     return TRUE;
 108 }
 109
 110 Bool
 111 DRIFinishScreenInit(ScreenPtr pScreen)
 112 {
 113     DRIScreenPrivPtr  pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 114
 115     /* Wrap DRI support */
 116     pDRIPriv->wrap.ValidateTree = pScreen->ValidateTree;
 117     pScreen->ValidateTree = DRIValidateTree;
 118
 119     pDRIPriv->wrap.PostValidateTree = pScreen->PostValidateTree;
 120     pScreen->PostValidateTree = DRIPostValidateTree;
 121
 122     pDRIPriv->wrap.WindowExposures = pScreen->WindowExposures;
 123     pScreen->WindowExposures = DRIWindowExposures;
 124
 125     pDRIPriv->wrap.CopyWindow = pScreen->CopyWindow;
 126     pScreen->CopyWindow = DRICopyWindow;
 127
 128     pDRIPriv->wrap.ClipNotify = pScreen->ClipNotify;
 129     pScreen->ClipNotify = DRIClipNotify;
 130
 131     ErrorF("[DRI] screen %d installation complete\n", pScreen->myNum);
 132
 133     return TRUE;
 134 }
 135
 136 void
 137 DRICloseScreen(ScreenPtr pScreen)
 138 {
 139     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 140
 141     if (pDRIPriv && pDRIPriv->directRenderingSupport) {
 142         xfree(pDRIPriv);
 143         pScreen->devPrivates[DRIScreenPrivIndex].ptr = NULL;
 144     }
 145 }
 146
 147 Bool
 148 DRIExtensionInit(void)
 149 {
 150     int                 i;
 151     ScreenPtr           pScreen;
 152
 153     if (DRIScreenPrivIndex < 0) {
 154         return FALSE;
 155     }
 156
 157     /* Allocate a window private index with a zero sized private area for
 158      * each window, then should a window become a DRI window, we'll hang
 159      * a DRIWindowPrivateRec off of this private index.
 160      */
 161     if ((DRIWindowPrivIndex = AllocateWindowPrivateIndex()) < 0)
 162         return FALSE;
 163     if ((DRIPixmapPrivIndex = AllocatePixmapPrivateIndex()) < 0)
 164         return FALSE;
 165
 166     DRIDrawablePrivResType = CreateNewResourceType(DRIDrawablePrivDelete);
 167
 168     for (i = 0; i < screenInfo.numScreens; i++)
 169     {
 170         pScreen = screenInfo.screens[i];
 171         if (!AllocateWindowPrivate(pScreen, DRIWindowPrivIndex, 0))
 172             return FALSE;
 173         if (!AllocatePixmapPrivate(pScreen, DRIPixmapPrivIndex, 0))
 174             return FALSE;
 175     }
 176
 177     return TRUE;
 178 }
 179
 180 void
 181 DRIReset(void)
 182 {
 183     /*
 184      * This stub routine is called when the X Server recycles, resources
 185      * allocated by DRIExtensionInit need to be managed here.
 186      *
 187      * Currently this routine is a stub because all the interesting resources
 188      * are managed via the screen init process.
 189      */
 190 }
 191
 192 Bool
 193 DRIQueryDirectRenderingCapable(ScreenPtr pScreen, Bool* isCapable)
 194 {
 195     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 196
 197     if (pDRIPriv)
 198         *isCapable = pDRIPriv->directRenderingSupport;
 199     else
 200         *isCapable = FALSE;
 201
 202     return TRUE;
 203 }
 204
 205 Bool
 206 DRIAuthConnection(ScreenPtr pScreen, unsigned int magic)
 207 {
 208 #if 0
 209     /* FIXME: something? */
 210
 211     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 212
 213     if (drmAuthMagic(pDRIPriv->drmFD, magic)) return FALSE;
 214 #endif
 215     return TRUE;
 216 }
 217
 218 static void
 219 DRIUpdateSurface (DRIDrawablePrivPtr pDRIDrawablePriv, DrawablePtr pDraw)
 220 {
 221     WindowPtr pTopWin;
 222     xp_window_changes wc;
 223     unsigned int flags = 0;
 224
 225     if (pDRIDrawablePriv->sid == 0)
 226         return;
 227
 228 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
 229     wc.depth = (pDraw->bitsPerPixel == 32 ? XP_DEPTH_ARGB8888
 230                 : pDraw->bitsPerPixel == 16 ? XP_DEPTH_RGB555 : XP_DEPTH_NIL);
 231     if (wc.depth != XP_DEPTH_NIL)
 232         flags |= XP_DEPTH;
 233 #endif
 234
 235     if (pDraw->type == DRAWABLE_WINDOW) {
 236         WindowPtr pWin = (WindowPtr) pDraw;
 237
 238         DRIStopDrawing (&pWin->drawable, FALSE);
 239
 240         pTopWin = TopLevelParent (pWin);
 241
 242         wc.x = pWin->drawable.x - (pTopWin->drawable.x - pTopWin->borderWidth);
 243         wc.y = pWin->drawable.y - (pTopWin->drawable.y - pTopWin->borderWidth);
 244         wc.width = pWin->drawable.width;
 245         wc.height = pWin->drawable.height;
 246         wc.bit_gravity = XP_GRAVITY_NONE;
 247
 248         wc.shape_nrects = REGION_NUM_RECTS (&pWin->clipList);
 249         wc.shape_rects = REGION_RECTS (&pWin->clipList);
 250         wc.shape_tx = - (pTopWin->drawable.x - pTopWin->borderWidth);
 251         wc.shape_ty = - (pTopWin->drawable.y - pTopWin->borderWidth);
 252
 253         flags |= XP_BOUNDS | XP_SHAPE;
 254
 255         pDRIDrawablePriv->x = pWin->drawable.x - pTopWin->borderWidth;
 256         pDRIDrawablePriv->y = pWin->drawable.y - pTopWin->borderWidth;
 257
 258     } else if (pDraw->type == DRAWABLE_PIXMAP) {
 259         wc.x = 0;
 260         wc.y = 0;
 261         wc.width = pDraw->width;
 262         wc.height = pDraw->height;
 263         wc.bit_gravity = XP_GRAVITY_NONE;
 264         flags |= XP_BOUNDS;
 265     }
 266
 267     xp_configure_surface (pDRIDrawablePriv->sid, flags, &wc);
 268 }
 269
 270 Bool
 271 DRICreateSurface (ScreenPtr pScreen, Drawable id,
 272                   DrawablePtr pDrawable, xp_client_id client_id,
 273                   xp_surface_id *surface_id, unsigned int ret_key[2],
 274                   void (*notify) (void *arg, void *data), void *notify_data)
 275 {
 276     DRIScreenPrivPtr    pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 277     DRIDrawablePrivPtr  pDRIDrawablePriv;
 278     WindowPtr           pWin;
 279     PixmapPtr           pPix;
 280     xp_window_id        wid = 0;
 281
 282     if (pDrawable->type == DRAWABLE_WINDOW) {
 283         pWin = (WindowPtr)pDrawable;
 284         pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
 285         if (pDRIDrawablePriv == NULL) {
 286             WindowPtr pTopWin;
 287             xp_error err;
 288             xp_window_changes wc;
 289
 290             pTopWin = TopLevelParent (pWin);
 291
 292             /* allocate a DRI Window Private record */
 293             if (!(pDRIDrawablePriv = xcalloc(1, sizeof(DRIDrawablePrivRec)))) {
 294                 return FALSE;
 295             }
 296
 297             pDRIDrawablePriv->pDraw = pDrawable;
 298             pDRIDrawablePriv->pScreen = pScreen;
 299             pDRIDrawablePriv->refCount = 0;
 300             pDRIDrawablePriv->drawableIndex = -1;
 301             pDRIDrawablePriv->notifiers = NULL;
 302
 303             /* find the physical window */
 304             wid = RootlessGetPhysicalWindow (pTopWin, TRUE);
 305             if (wid == 0) {
 306                 xfree (pDRIDrawablePriv);
 307                 return FALSE;
 308             }
 309
 310             /* allocate the physical surface */
 311             err = xp_create_surface (wid, &pDRIDrawablePriv->sid);
 312             if (err != Success) {
 313                 xfree (pDRIDrawablePriv);
 314                 return FALSE;
 315             }
 316
 317             /* Make it visible */
 318             wc.stack_mode = XP_MAPPED_ABOVE;
 319             wc.sibling = 0;
 320             err = xp_configure_surface (pDRIDrawablePriv->sid,
 321                                         XP_STACKING, &wc);
 322             if (err != Success)
 323             {
 324                 xp_destroy_surface (pDRIDrawablePriv->sid);
 325                 xfree (pDRIDrawablePriv);
 326                 return FALSE;
 327             }
 328
 329             /* save private off of preallocated index */
 330             pWin->devPrivates[DRIWindowPrivIndex].ptr = (pointer)pDRIDrawablePriv;
 331         }
 332     }
 333 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
 334     else if (pDrawable->type == DRAWABLE_PIXMAP) {
 335         pPix = (PixmapPtr)pDrawable;
 336         pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix);
 337         if (pDRIDrawablePriv == NULL) {
 338             xp_error err;
 339
 340             /* allocate a DRI Window Private record */
 341             if (!(pDRIDrawablePriv = xcalloc(1, sizeof(DRIDrawablePrivRec)))) {
 342                 return FALSE;
 343             }
 344
 345             pDRIDrawablePriv->pDraw = pDrawable;
 346             pDRIDrawablePriv->pScreen = pScreen;
 347             pDRIDrawablePriv->refCount = 0;
 348             pDRIDrawablePriv->drawableIndex = -1;
 349             pDRIDrawablePriv->notifiers = NULL;
 350
 351             /* Passing a null window id to Xplugin in 10.3+ asks for
 352                an accelerated offscreen surface. */
 353
 354             err = xp_create_surface (0, &pDRIDrawablePriv->sid);
 355             if (err != Success) {
 356                 xfree (pDRIDrawablePriv);
 357                 return FALSE;
 358             }
 359
 360             /* save private off of preallocated index */
 361             pPix->devPrivates[DRIPixmapPrivIndex].ptr = (pointer)pDRIDrawablePriv;
 362         }
 363     }
 364 #endif
 365     else { /* for GLX 1.3, a PBuffer */
 366         /* NOT_DONE */
 367         return FALSE;
 368     }
 369
 370     /* Finish initialization of new surfaces */
 371     if (pDRIDrawablePriv->refCount == 0) {
 372         unsigned int key[2] = {0};
 373         xp_error err;
 374
 375         /* try to give the client access to the surface
 376            FIXME: how to export pixmaps? */
 377         if (client_id != 0 && wid != 0)
 378         {
 379             err = xp_export_surface (wid, pDRIDrawablePriv->sid,
 380                                      client_id, key);
 381             if (err != Success) {
 382                 xp_destroy_surface (pDRIDrawablePriv->sid);
 383                 xfree (pDRIDrawablePriv);
 384                 return FALSE;
 385             }
 386         }
 387
 388         pDRIDrawablePriv->key[0] = key[0];
 389         pDRIDrawablePriv->key[1] = key[1];
 390
 391         ++pDRIPriv->nrWindows;
 392
 393         /* and stash it by surface id */
 394         if (surface_hash == NULL)
 395             surface_hash = x_hash_table_new (NULL, NULL, NULL, NULL);
 396         x_hash_table_insert (surface_hash,
 397                              (void *) pDRIDrawablePriv->sid, pDRIDrawablePriv);
 398
 399         /* track this in case this window is destroyed */
 400         AddResource(id, DRIDrawablePrivResType, (pointer)pDrawable);
 401
 402         /* Initialize shape */
 403         DRIUpdateSurface (pDRIDrawablePriv, pDrawable);
 404     }
 405
 406     pDRIDrawablePriv->refCount++;
 407
 408     *surface_id = pDRIDrawablePriv->sid;
 409
 410     if (ret_key != NULL) {
 411         ret_key[0] = pDRIDrawablePriv->key[0];
 412         ret_key[1] = pDRIDrawablePriv->key[1];
 413     }
 414
 415     if (notify != NULL) {
 416         pDRIDrawablePriv->notifiers = x_hook_add (pDRIDrawablePriv->notifiers,
 417                                                   notify, notify_data);
 418     }
 419
 420     return TRUE;
 421 }
 422
 423 Bool
 424 DRIDestroySurface(ScreenPtr pScreen, Drawable id, DrawablePtr pDrawable,
 425                   void (*notify) (void *, void *), void *notify_data)
 426 {
 427     DRIDrawablePrivPtr  pDRIDrawablePriv;
 428
 429     if (pDrawable->type == DRAWABLE_WINDOW) {
 430         pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW((WindowPtr)pDrawable);
 431     } else if (pDrawable->type == DRAWABLE_PIXMAP) {
 432         pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP((PixmapPtr)pDrawable);
 433     } else {
 434         return FALSE;
 435     }
 436
 437     if (pDRIDrawablePriv != NULL) {
 438         if (notify != NULL) {
 439             pDRIDrawablePriv->notifiers = x_hook_remove (pDRIDrawablePriv->notifiers,
 440                                                          notify, notify_data);
 441         }
 442         if (--pDRIDrawablePriv->refCount <= 0) {
 443             /* This calls back to DRIDrawablePrivDelete
 444                which frees the private area */
 445             FreeResourceByType(id, DRIDrawablePrivResType, FALSE);
 446         }
 447     }
 448
 449     return TRUE;
 450 }
 451
 452 Bool
 453 DRIDrawablePrivDelete(pointer pResource, XID id)
 454 {
 455     DrawablePtr         pDrawable = (DrawablePtr)pResource;
 456     DRIScreenPrivPtr    pDRIPriv = DRI_SCREEN_PRIV(pDrawable->pScreen);
 457     DRIDrawablePrivPtr  pDRIDrawablePriv = NULL;
 458     WindowPtr           pWin = NULL;
 459     PixmapPtr           pPix = NULL;
 460
 461     if (pDrawable->type == DRAWABLE_WINDOW) {
 462         pWin = (WindowPtr)pDrawable;
 463         pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
 464         DRIStopDrawing (pDrawable, FALSE);
 465         pDRIPriv->drawing = x_list_remove (pDRIPriv->drawing,
 466                                            pDRIDrawablePriv);
 467     } else if (pDrawable->type == DRAWABLE_PIXMAP) {
 468         pPix = (PixmapPtr)pDrawable;
 469         pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix);
 470     }
 471
 472     if (pDRIDrawablePriv == NULL)
 473         return FALSE;
 474
 475     if (pDRIDrawablePriv->drawableIndex != -1) {
 476         /* release drawable table entry */
 477         pDRIPriv->DRIDrawables[pDRIDrawablePriv->drawableIndex] = NULL;
 478     }
 479
 480     if (pDRIDrawablePriv->sid != 0) {
 481         xp_destroy_surface (pDRIDrawablePriv->sid);
 482         x_hash_table_remove (surface_hash, (void *) pDRIDrawablePriv->sid);
 483     }
 484
 485     if (pDRIDrawablePriv->notifiers != NULL)
 486         x_hook_free (pDRIDrawablePriv->notifiers);
 487
 488     xfree(pDRIDrawablePriv);
 489
 490     if (pDrawable->type == DRAWABLE_WINDOW) {
 491         pWin->devPrivates[DRIWindowPrivIndex].ptr = NULL;
 492     } else if (pDrawable->type == DRAWABLE_PIXMAP) {
 493         pPix->devPrivates[DRIPixmapPrivIndex].ptr = NULL;
 494     }
 495
 496     --pDRIPriv->nrWindows;
 497
 498     return TRUE;
 499 }
 500
 501 void
 502 DRIWindowExposures(WindowPtr pWin, RegionPtr prgn, RegionPtr bsreg)
 503 {
 504     ScreenPtr pScreen = pWin->drawable.pScreen;
 505     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 506     DRIDrawablePrivPtr pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
 507
 508     if(pDRIDrawablePriv) {
 509         /* FIXME: something? */
 510     }
 511
 512     pScreen->WindowExposures = pDRIPriv->wrap.WindowExposures;
 513
 514     (*pScreen->WindowExposures)(pWin, prgn, bsreg);
 515
 516     pDRIPriv->wrap.WindowExposures = pScreen->WindowExposures;
 517     pScreen->WindowExposures = DRIWindowExposures;
 518
 519 }
 520
 521 void
 522 DRICopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
 523 {
 524     ScreenPtr pScreen = pWin->drawable.pScreen;
 525     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 526     DRIDrawablePrivPtr pDRIDrawablePriv;
 527
 528     if(pDRIPriv->nrWindows > 0) {
 529        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW (pWin);
 530        if (pDRIDrawablePriv != NULL) {
 531            DRIUpdateSurface (pDRIDrawablePriv, &pWin->drawable);
 532        }
 533     }
 534
 535     /* unwrap */
 536     pScreen->CopyWindow = pDRIPriv->wrap.CopyWindow;
 537
 538     /* call lower layers */
 539     (*pScreen->CopyWindow)(pWin, ptOldOrg, prgnSrc);
 540
 541     /* rewrap */
 542     pDRIPriv->wrap.CopyWindow = pScreen->CopyWindow;
 543     pScreen->CopyWindow = DRICopyWindow;
 544 }
 545
 546 int
 547 DRIValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)
 548 {
 549     ScreenPtr pScreen = pParent->drawable.pScreen;
 550     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 551     int returnValue;
 552
 553     /* unwrap */
 554     pScreen->ValidateTree = pDRIPriv->wrap.ValidateTree;
 555
 556     /* call lower layers */
 557     returnValue = (*pScreen->ValidateTree)(pParent, pChild, kind);
 558
 559     /* rewrap */
 560     pDRIPriv->wrap.ValidateTree = pScreen->ValidateTree;
 561     pScreen->ValidateTree = DRIValidateTree;
 562
 563     return returnValue;
 564 }
 565
 566 void
 567 DRIPostValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)
 568 {
 569     ScreenPtr pScreen;
 570     DRIScreenPrivPtr pDRIPriv;
 571
 572     if (pParent) {
 573         pScreen = pParent->drawable.pScreen;
 574     } else {
 575         pScreen = pChild->drawable.pScreen;
 576     }
 577     pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 578
 579     if (pDRIPriv->wrap.PostValidateTree) {
 580         /* unwrap */
 581         pScreen->PostValidateTree = pDRIPriv->wrap.PostValidateTree;
 582
 583         /* call lower layers */
 584         (*pScreen->PostValidateTree)(pParent, pChild, kind);
 585
 586         /* rewrap */
 587         pDRIPriv->wrap.PostValidateTree = pScreen->PostValidateTree;
 588         pScreen->PostValidateTree = DRIPostValidateTree;
 589     }
 590 }
 591
 592 void
 593 DRIClipNotify(WindowPtr pWin, int dx, int dy)
 594 {
 595     ScreenPtr pScreen = pWin->drawable.pScreen;
 596     DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 597     DRIDrawablePrivPtr  pDRIDrawablePriv;
 598
 599     if ((pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin))) {
 600         DRIUpdateSurface (pDRIDrawablePriv, &pWin->drawable);
 601     }
 602
 603     if(pDRIPriv->wrap.ClipNotify) {
 604         pScreen->ClipNotify = pDRIPriv->wrap.ClipNotify;
 605
 606         (*pScreen->ClipNotify)(pWin, dx, dy);
 607
 608         pDRIPriv->wrap.ClipNotify = pScreen->ClipNotify;
 609         pScreen->ClipNotify = DRIClipNotify;
 610     }
 611 }
 612
 613 /* This lets get at the unwrapped functions so that they can correctly
 614  * call the lowerlevel functions, and choose whether they will be
 615  * called at every level of recursion (eg in validatetree).
 616  */
 617 DRIWrappedFuncsRec *
 618 DRIGetWrappedFuncs(ScreenPtr pScreen)
 619 {
 620     return &(DRI_SCREEN_PRIV(pScreen)->wrap);
 621 }
 622
 623 void
 624 DRIQueryVersion(int *majorVersion,
 625                 int *minorVersion,
 626                 int *patchVersion)
 627 {
 628     *majorVersion = APPLE_DRI_MAJOR_VERSION;
 629     *minorVersion = APPLE_DRI_MINOR_VERSION;
 630     *patchVersion = APPLE_DRI_PATCH_VERSION;
 631 }
 632
 633 void
 634 DRISurfaceNotify (xp_surface_id id, int kind)
 635 {
 636     DRIDrawablePrivPtr pDRIDrawablePriv = NULL;
 637     DRISurfaceNotifyArg arg;
 638
 639     arg.id = id;
 640     arg.kind = kind;
 641
 642     if (surface_hash != NULL)
 643     {
 644         pDRIDrawablePriv = x_hash_table_lookup (surface_hash,
 645                                                 (void *) id, NULL);
 646     }
 647
 648     if (pDRIDrawablePriv == NULL)
 649         return;
 650
 651     if (kind == AppleDRISurfaceNotifyDestroyed)
 652     {
 653         pDRIDrawablePriv->sid = 0;
 654         x_hash_table_remove (surface_hash, (void *) id);
 655     }
 656
 657     x_hook_run (pDRIDrawablePriv->notifiers, &arg);
 658
 659     if (kind == AppleDRISurfaceNotifyDestroyed)
 660     {
 661         /* Kill off the handle. */
 662
 663         FreeResourceByType (pDRIDrawablePriv->pDraw->id,
 664                             DRIDrawablePrivResType, FALSE);
 665     }
 666 }
 667
 668 \f
 669 /* Experimental support for X drawing directly into VRAM surfaces. */
 670
 671 Bool
 672 DRIStartDrawing (DrawablePtr pDraw)
 673 {
 674 #if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
 675     return FALSE;
 676 #else
 677     DRIDrawablePrivPtr priv = NULL;
 678     DRIScreenPrivPtr pDRIPriv;
 679
 680     if (pDraw->type == DRAWABLE_WINDOW)
 681         priv = DRI_DRAWABLE_PRIV_FROM_WINDOW ((WindowPtr)pDraw);
 682 #if 0
 683     /* FIXME: support pixmaps */
 684     else if (pDraw->type == DRAWABLE_PIXMAP)
 685         priv = DRI_DRAWABLE_PRIV_FROM_PIXMAP ((PixmapPtr)pDraw);
 686 #endif
 687
 688     if (priv == NULL)
 689         return FALSE;
 690
 691     pDRIPriv = DRI_SCREEN_PRIV(priv->pScreen);
 692
 693     if (!priv->is_drawing)
 694     {
 695         xp_error err;
 696         xp_box r;
 697
 698         err = xp_lock_window (priv->sid, NULL, NULL,
 699                               &priv->data, &priv->rowbytes, &r);
 700         if (err != Success)
 701             return FALSE;
 702
 703         if (pDraw->type == DRAWABLE_WINDOW)
 704         {
 705             WindowPtr pWin = (WindowPtr) pDraw;
 706             int bw = wBorderWidth (pWin);
 707
 708             priv->pixmap =
 709             GetScratchPixmapHeader(pWin->drawable.pScreen, r.x2 - r.x1,
 710                                    r.y2 - r.y1, pWin->drawable.depth,
 711                                    pWin->drawable.bitsPerPixel,
 712                                    priv->rowbytes, priv->data);
 713             TranslatePixmapBase (priv->pixmap,
 714                                  - (pWin->drawable.x - bw),
 715                                  - (pWin->drawable.y - bw));
 716         }
 717
 718         priv->is_drawing = TRUE;
 719         pDRIPriv->drawing = x_list_prepend (pDRIPriv->drawing, priv);
 720     }
 721
 722     if (pDraw->type == DRAWABLE_WINDOW)
 723     {
 724         WindowPtr pWin = (WindowPtr) pDraw;
 725
 726         priv->oldPixmap = pWin->drawable.pScreen->GetWindowPixmap (pWin);
 727         pWin->drawable.pScreen->SetWindowPixmap (pWin, priv->pixmap);
 728     }
 729
 730     return TRUE;
 731 #endif
 732 }
 733
 734 Bool
 735 DRIStopDrawing (DrawablePtr pDraw, Bool flush)
 736 {
 737 #if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
 738     return FALSE;
 739 #else
 740     DRIDrawablePrivPtr priv = NULL;
 741     ScreenPtr pScreen;
 742     DRIScreenPrivPtr pDRIPriv;
 743
 744     if (pDraw->type == DRAWABLE_WINDOW)
 745         priv = DRI_DRAWABLE_PRIV_FROM_WINDOW ((WindowPtr)pDraw);
 746     else if (pDraw->type == DRAWABLE_PIXMAP)
 747         priv = DRI_DRAWABLE_PRIV_FROM_PIXMAP ((PixmapPtr)pDraw);
 748
 749     if (priv == NULL)
 750         return FALSE;
 751
 752     pScreen = priv->pScreen;
 753     pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 754
 755     if (priv->is_drawing)
 756     {
 757         xp_unlock_window (priv->sid, flush);
 758
 759         if (pDraw->type == DRAWABLE_WINDOW)
 760         {
 761             FreeScratchPixmapHeader (priv->pixmap);
 762             pScreen->SetWindowPixmap ((WindowPtr)pDraw, priv->oldPixmap);
 763         }
 764
 765         priv->pixmap = NULL;
 766
 767         /* If we didn't flush don't forget that we still need to.. */
 768         if (flush)
 769             pDRIPriv->drawing = x_list_remove (pDRIPriv->drawing, priv);
 770
 771         priv->is_drawing = FALSE;
 772     }
 773     else if (flush)
 774     {
 775         xp_flush_window (priv->sid);
 776     }
 777
 778     return TRUE;
 779 #endif /* 10.3 */
 780 }
 781
 782 /*  true iff two Boxes overlap */
 783 #define EXTENTCHECK(r1,r2) \
 784       (!( ((r1)->x2 <= (r2)->x1)  || \
 785           ((r1)->x1 >= (r2)->x2)  || \
 786           ((r1)->y2 <= (r2)->y1)  || \
 787           ((r1)->y1 >= (r2)->y2) ) )
 788
 789 Bool
 790 DRIDamageRegion (DrawablePtr pDraw, RegionPtr pRegion)
 791 {
 792 #if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
 793     return FALSE;
 794 #else
 795     DRIDrawablePrivPtr priv = NULL;
 796     RegionRec clipped;
 797     BoxPtr b1, b2;
 798
 799     if (pDraw->type == DRAWABLE_WINDOW)
 800         priv = DRI_DRAWABLE_PRIV_FROM_WINDOW ((WindowPtr)pDraw);
 801
 802     if (priv == NULL)
 803         return FALSE;
 804
 805     /* adapted from RootlessDamageRegion () */
 806
 807     if (pDraw->type == DRAWABLE_WINDOW)
 808     {
 809         WindowPtr pWin = (WindowPtr) pDraw;
 810
 811         b1 = REGION_EXTENTS (pWin->drawable.pScreen, &pWin->borderClip);
 812         b2 = REGION_EXTENTS (pWin->drawable.pScreen, pRegion);
 813
 814         if (EXTENTCHECK (b1, b2))
 815         {
 816             /* Regions may overlap. */
 817
 818             if (REGION_NUM_RECTS (pRegion) == 1)
 819             {
 820                 int in;
 821
 822                 /* Damaged region only has a single rect, so we can
 823                    just compare that against the region */
 824
 825                 in = RECT_IN_REGION (pWin->drawable.pScreen, &pWin->borderClip,
 826                                      REGION_RECTS (pRegion));
 827                 if (in == rgnIN)
 828                 {
 829                     /* clip totally contains pRegion */
 830
 831                     xp_mark_window (priv->sid, REGION_NUM_RECTS (pRegion),
 832                                     REGION_RECTS (pRegion),
 833                                     -priv->x, -priv->y);
 834
 835                     RootlessQueueRedisplay (pWin->drawable.pScreen);
 836                     goto out;
 837                 }
 838                 else if (in == rgnOUT)
 839                 {
 840                     /* clip doesn't contain pRegion */
 841
 842                     goto out;
 843                 }
 844             }
 845
 846             /* clip overlaps pRegion, need to intersect */
 847
 848             REGION_INIT (pWin->drawable.pScreen, &clipped, NullBox, 0);
 849             REGION_INTERSECT (pWin->drawable.pScreen, &clipped,
 850                               &pWin->borderClip, pRegion);
 851
 852             xp_mark_window (priv->sid, REGION_NUM_RECTS (&clipped),
 853                             REGION_RECTS (&clipped), -priv->x, -priv->y);
 854
 855             REGION_UNINIT (pWin->drawable.pScreen, &clipped);
 856
 857             RootlessQueueRedisplay (pWin->drawable.pScreen);
 858         }
 859     }
 860
 861 out:
 862     return TRUE;
 863 #endif /* 10.3 */
 864 }
 865
 866 void
 867 DRISynchronizeDrawable (DrawablePtr pDraw, Bool flush)
 868 {
 869 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
 870     ScreenPtr pScreen;
 871     DRIScreenPrivPtr pDRIPriv;
 872     DRIDrawablePrivPtr priv;
 873     x_list *node, *copy;
 874
 875     pScreen = pDraw->pScreen;
 876     pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 877
 878     if (pDRIPriv == NULL || pDRIPriv->drawing == NULL)
 879         return;
 880
 881     if (pDraw->type == DRAWABLE_WINDOW)
 882     {
 883         WindowPtr pWin = TopLevelParent ((WindowPtr) pDraw);
 884
 885         /* need to find _any_ window under pWin that is drawing. Scan the
 886            list looking for candidates. */
 887
 888         copy = x_list_copy (pDRIPriv->drawing);
 889
 890         for (node = copy; node != NULL; node = node->next)
 891         {
 892             priv = node->data;
 893
 894             if (priv->pDraw->type == DRAWABLE_WINDOW
 895                 && TopLevelParent ((WindowPtr) priv->pDraw) == pWin)
 896             {
 897                 DRIStopDrawing (priv->pDraw, flush);
 898             }
 899         }
 900
 901         x_list_free (copy);
 902     }
 903     else
 904     {
 905         DRIStopDrawing (pDraw, flush);
 906     }
 907 #endif /* 10.3 */
 908 }
 909
 910 void
 911 DRISynchronize (Bool flush)
 912 {
 913 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
 914     int i;
 915     ScreenPtr pScreen;
 916     DRIScreenPrivPtr pDRIPriv;
 917     DRIDrawablePrivPtr priv;
 918     x_list *node, *copy;
 919
 920     for (i = 0; i < screenInfo.numScreens; i++)
 921     {
 922         pScreen = screenInfo.screens[i];
 923         pDRIPriv = DRI_SCREEN_PRIV(pScreen);
 924
 925         if (pDRIPriv == NULL || pDRIPriv->drawing == NULL)
 926             continue;
 927
 928         copy = x_list_copy (pDRIPriv->drawing);
 929
 930         for (node = copy; node != NULL; node = node->next)
 931         {
 932             priv = node->data;
 933
 934             DRIStopDrawing (priv->pDraw, flush);
 935         }
 936
 937         x_list_free (copy);
 938     }
 939 #endif /* 10.3 */
 940 }