Synchronised line endinge with release branch

1 files changed, 884 insertions, 884 deletions

diff --git a/xorg-server/hw/xquartz/xpr/dri.c b/xorg-server/hw/xquartz/xpr/dri.c
index 63fcabe38..8bae6b009 100644
--- a/xorg-server/hw/xquartz/xpr/dri.c
+++ b/xorg-server/hw/xquartz/xpr/dri.c
@@ -1,884 +1,884 @@
-/**************************************************************************

-

-Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.

-Copyright 2000 VA Linux Systems, Inc.

-Copyright (c) 2002, 2009 Apple Computer, Inc.

-All Rights Reserved.

-

-Permission is hereby granted, free of charge, to any person obtaining a

-copy of this software and associated documentation files (the

-"Software"), to deal in the Software without restriction, including

-without limitation the rights to use, copy, modify, merge, publish,

-distribute, sub license, and/or sell copies of the Software, and to

-permit persons to whom the Software is furnished to do so, subject to

-the following conditions:

-

-The above copyright notice and this permission notice (including the

-next paragraph) shall be included in all copies or substantial portions

-of the Software.

-

-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR

-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

-

-**************************************************************************/

-

-/*

- * Authors:

- *   Jens Owen <jens@valinux.com>

- *   Rickard E. (Rik) Faith <faith@valinux.com>

- *

- */

-

-#ifdef HAVE_DIX_CONFIG_H

-#include <dix-config.h>

-#endif

-

-#ifdef XFree86LOADER

-#include "xf86.h"

-#include "xf86_ansic.h"

-#else

-#include <sys/time.h>

-#include <unistd.h>

-#endif

-

-#include <X11/X.h>

-#include <X11/Xproto.h>

-#include <fcntl.h>

-#include <sys/mman.h>

-#include <sys/types.h>

-#include <sys/stat.h>

-#include "misc.h"

-#include "dixstruct.h"

-#include "extnsionst.h"

-#include "colormapst.h"

-#include "cursorstr.h"

-#include "scrnintstr.h"

-#include "windowstr.h"

-#include "servermd.h"

-#define _APPLEDRI_SERVER_

-#include "appledristr.h"

-#include "swaprep.h"

-#include "dri.h"

-#include "dristruct.h"

-#include "mi.h"

-#include "mipointer.h"

-#include "rootless.h"

-#include "x-hash.h"

-#include "x-hook.h"

-#include "driWrap.h"

-

-#include <AvailabilityMacros.h>

-

-static DevPrivateKeyRec DRIScreenPrivKeyRec;

-#define DRIScreenPrivKey (&DRIScreenPrivKeyRec)

-static DevPrivateKeyRec DRIWindowPrivKeyRec;

-#define DRIWindowPrivKey (&DRIWindowPrivKeyRec)

-static DevPrivateKeyRec DRIPixmapPrivKeyRec;

-#define DRIPixmapPrivKey (&DRIPixmapPrivKeyRec)

-static DevPrivateKeyRec DRIPixmapBufferPrivKeyRec;

-#define DRIPixmapBufferPrivKey (&DRIPixmapBufferPrivKeyRec)

-

-static RESTYPE DRIDrawablePrivResType;

-

-static x_hash_table *surface_hash;      /* maps surface ids -> drawablePrivs */

-

-static Bool DRIFreePixmapImp(DrawablePtr pDrawable);

-

-typedef struct {

-    DrawablePtr pDrawable;

-    int refCount;

-    int bytesPerPixel;

-    int width;

-    int height;

-    char shmPath[PATH_MAX];

-    int fd; /* From shm_open (for now) */

-    size_t length; /* length of buffer */

-    void *buffer;       

-} DRIPixmapBuffer, *DRIPixmapBufferPtr;

-

-Bool

-DRIScreenInit(ScreenPtr pScreen)

-{

-    DRIScreenPrivPtr    pDRIPriv;

-    int                 i;

-

-    if (!dixRegisterPrivateKey(&DRIScreenPrivKeyRec, PRIVATE_SCREEN, 0))

-	return FALSE;

-    if (!dixRegisterPrivateKey(&DRIWindowPrivKeyRec, PRIVATE_WINDOW, 0))

-	return FALSE;

-    if (!dixRegisterPrivateKey(&DRIPixmapPrivKeyRec, PRIVATE_PIXMAP, 0))

-	return FALSE;

-    if (!dixRegisterPrivateKey(&DRIPixmapBufferPrivKeyRec, PRIVATE_PIXMAP, 0))

-	return FALSE;

-

-    pDRIPriv = (DRIScreenPrivPtr) calloc(1, sizeof(DRIScreenPrivRec));

-    if (!pDRIPriv) {

-	dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);

-        return FALSE;

-    }

-

-    dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, pDRIPriv);

-    pDRIPriv->directRenderingSupport = TRUE;

-    pDRIPriv->nrWindows = 0;

-

-    /* Initialize drawable tables */

-    for (i = 0; i < DRI_MAX_DRAWABLES; i++) {

-        pDRIPriv->DRIDrawables[i] = NULL;

-    }

-

-    return TRUE;

-}

-

-Bool

-DRIFinishScreenInit(ScreenPtr pScreen)

-{

-    DRIScreenPrivPtr  pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-

-    /* Wrap DRI support */

-    pDRIPriv->wrap.ValidateTree = pScreen->ValidateTree;

-    pScreen->ValidateTree = DRIValidateTree;

-

-    pDRIPriv->wrap.PostValidateTree = pScreen->PostValidateTree;

-    pScreen->PostValidateTree = DRIPostValidateTree;

-

-    pDRIPriv->wrap.WindowExposures = pScreen->WindowExposures;

-    pScreen->WindowExposures = DRIWindowExposures;

-

-    pDRIPriv->wrap.CopyWindow = pScreen->CopyWindow;

-    pScreen->CopyWindow = DRICopyWindow;

-

-    pDRIPriv->wrap.ClipNotify = pScreen->ClipNotify;

-    pScreen->ClipNotify = DRIClipNotify;

-

-    //    ErrorF("[DRI] screen %d installation complete\n", pScreen->myNum);

-

-    return DRIWrapInit(pScreen);

-}

-

-void

-DRICloseScreen(ScreenPtr pScreen)

-{

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-

-    if (pDRIPriv && pDRIPriv->directRenderingSupport) {

-        free(pDRIPriv);

-	dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);

-    }

-}

-

-Bool

-DRIExtensionInit(void)

-{

-    DRIDrawablePrivResType = CreateNewResourceType(DRIDrawablePrivDelete,

-						   "DRIDrawable");

-

-    return DRIDrawablePrivResType != 0;

-}

-

-void

-DRIReset(void)

-{

-    /*

-     * This stub routine is called when the X Server recycles, resources

-     * allocated by DRIExtensionInit need to be managed here.

-     *

-     * Currently this routine is a stub because all the interesting resources

-     * are managed via the screen init process.

-     */

-}

-

-Bool

-DRIQueryDirectRenderingCapable(ScreenPtr pScreen, Bool* isCapable)

-{

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-

-    if (pDRIPriv)

-        *isCapable = pDRIPriv->directRenderingSupport;

-    else

-        *isCapable = FALSE;

-

-    return TRUE;

-}

-

-Bool

-DRIAuthConnection(ScreenPtr pScreen, unsigned int magic)

-{

-#if 0

-    /* FIXME: something? */

-

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-

-    if (drmAuthMagic(pDRIPriv->drmFD, magic)) return FALSE;

-#endif

-    return TRUE;

-}

-

-static void

-DRIUpdateSurface(DRIDrawablePrivPtr pDRIDrawablePriv, DrawablePtr pDraw)

-{

-    xp_window_changes wc;

-    unsigned int flags = 0;

-

-    if (pDRIDrawablePriv->sid == 0)

-        return;

-

-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030

-    wc.depth = (pDraw->bitsPerPixel == 32 ? XP_DEPTH_ARGB8888

-                : pDraw->bitsPerPixel == 16 ? XP_DEPTH_RGB555 : XP_DEPTH_NIL);

-    if (wc.depth != XP_DEPTH_NIL)

-        flags |= XP_DEPTH;

-#endif

-

-    if (pDraw->type == DRAWABLE_WINDOW) {

-        WindowPtr pWin = (WindowPtr) pDraw;

-        WindowPtr pTopWin = TopLevelParent(pWin);

-

-        wc.x = pWin->drawable.x - (pTopWin->drawable.x - pTopWin->borderWidth);

-        wc.y = pWin->drawable.y - (pTopWin->drawable.y - pTopWin->borderWidth);

-        wc.width = pWin->drawable.width + 2 * pWin->borderWidth;

-        wc.height = pWin->drawable.height + 2 * pWin->borderWidth;

-        wc.bit_gravity = XP_GRAVITY_NONE;

-

-        wc.shape_nrects = RegionNumRects(&pWin->clipList);

-        wc.shape_rects = RegionRects(&pWin->clipList);

-        wc.shape_tx = - (pTopWin->drawable.x - pTopWin->borderWidth);

-        wc.shape_ty = - (pTopWin->drawable.y - pTopWin->borderWidth);

-

-        flags |= XP_BOUNDS | XP_SHAPE;

-

-    } else if (pDraw->type == DRAWABLE_PIXMAP) {

-        wc.x = 0;

-        wc.y = 0;

-        wc.width = pDraw->width;

-        wc.height = pDraw->height;

-        wc.bit_gravity = XP_GRAVITY_NONE;

-        flags |= XP_BOUNDS;

-    }

-

-    xp_configure_surface(pDRIDrawablePriv->sid, flags, &wc);

-}

-

-/* Return NULL if an error occurs. */

-static DRIDrawablePrivPtr

-CreateSurfaceForWindow(ScreenPtr pScreen, WindowPtr pWin, xp_window_id *widPtr) {

-    DRIDrawablePrivPtr pDRIDrawablePriv;

-    xp_window_id wid = 0;

-

-    *widPtr = 0;

-

-    pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);

-

-    if (pDRIDrawablePriv == NULL) {

-	xp_error err;

-	xp_window_changes wc;

-	

-	/* allocate a DRI Window Private record */

-	if (!(pDRIDrawablePriv = malloc(sizeof(*pDRIDrawablePriv)))) {

-	    return NULL;

-	}

-	

-	pDRIDrawablePriv->pDraw = (DrawablePtr)pWin;

-	pDRIDrawablePriv->pScreen = pScreen;

-	pDRIDrawablePriv->refCount = 0;

-	pDRIDrawablePriv->drawableIndex = -1;

-	pDRIDrawablePriv->notifiers = NULL;

-	

-	/* find the physical window */

-	wid = x_cvt_vptr_to_uint(RootlessFrameForWindow(pWin, TRUE));

-

-	if (wid == 0) {

-	    free(pDRIDrawablePriv);

-	    return NULL;

-	}

-	

-	/* allocate the physical surface */

-	err = xp_create_surface(wid, &pDRIDrawablePriv->sid);

-

-	if (err != Success) {

-	    free(pDRIDrawablePriv);

-	    return NULL;

-	}

-

-	/* Make it visible */

-	wc.stack_mode = XP_MAPPED_ABOVE;

-	wc.sibling = 0;

-	err = xp_configure_surface(pDRIDrawablePriv->sid, XP_STACKING, &wc);

-

-	if (err != Success) {

-	    xp_destroy_surface(pDRIDrawablePriv->sid);

-	    free(pDRIDrawablePriv);

-	    return NULL;

-	}

-

-	/* save private off of preallocated index */

-	dixSetPrivate(&pWin->devPrivates, DRIWindowPrivKey,

-		      pDRIDrawablePriv);

-    }

-

-    *widPtr = wid;

-

-    return pDRIDrawablePriv;

-}

-

-/* Return NULL if an error occurs. */

-static DRIDrawablePrivPtr

-CreateSurfaceForPixmap(ScreenPtr pScreen, PixmapPtr pPix) {

-    DRIDrawablePrivPtr pDRIDrawablePriv;

-     

-    pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix);

-

-    if (pDRIDrawablePriv == NULL) {

-	xp_error err;

-

-	/* allocate a DRI Window Private record */

-	if (!(pDRIDrawablePriv = calloc(1, sizeof(*pDRIDrawablePriv)))) {

-	    return NULL;

-	}

-	

-	pDRIDrawablePriv->pDraw = (DrawablePtr)pPix;

-	pDRIDrawablePriv->pScreen = pScreen;

-	pDRIDrawablePriv->refCount = 0;

-	pDRIDrawablePriv->drawableIndex = -1;

-	pDRIDrawablePriv->notifiers = NULL;

-	

-	/* Passing a null window id to Xplugin in 10.3+ asks for

-	   an accelerated offscreen surface. */

-	

-	err = xp_create_surface(0, &pDRIDrawablePriv->sid);

-	if (err != Success) {

-	    free(pDRIDrawablePriv);

-	    return NULL;

-	}

-

-	/* 

-	 * The DRIUpdateSurface will be called to resize the surface

-	 * after this function, if the export is successful.

-	 */

-

-	/* save private off of preallocated index */

-	dixSetPrivate(&pPix->devPrivates, DRIPixmapPrivKey,

-		      pDRIDrawablePriv);

-    }

-    

-    return pDRIDrawablePriv;

-}

-

-

-Bool

-DRICreateSurface(ScreenPtr pScreen, Drawable id,

-                 DrawablePtr pDrawable, xp_client_id client_id,

-                 xp_surface_id *surface_id, unsigned int ret_key[2],

-                 void (*notify) (void *arg, void *data), void *notify_data)

-{

-    DRIScreenPrivPtr    pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-    xp_window_id        wid = 0;

-    DRIDrawablePrivPtr  pDRIDrawablePriv;

-

-    if (pDrawable->type == DRAWABLE_WINDOW) {

-	pDRIDrawablePriv = CreateSurfaceForWindow(pScreen, 

-						  (WindowPtr)pDrawable, &wid);

-

-	if(NULL == pDRIDrawablePriv)

-	    return FALSE; /*error*/

-    }

-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030

-    else if (pDrawable->type == DRAWABLE_PIXMAP) {

-	pDRIDrawablePriv = CreateSurfaceForPixmap(pScreen, 

-						  (PixmapPtr)pDrawable);

-

-	if(NULL == pDRIDrawablePriv)

-	    return FALSE; /*error*/

-    }

-#endif

-    else {

-	/* We handle GLXPbuffers in a different way (via CGL). */

-        return FALSE;

-    }

-    

-    

-    /* Finish initialization of new surfaces */

-    if (pDRIDrawablePriv->refCount == 0) {

-        unsigned int key[2] = {0};

-        xp_error err;

-

-        /* try to give the client access to the surface */

-        if (client_id != 0) {

-	    /*

-	     * Xplugin accepts a 0 wid if the surface id is offscreen, such 

-	     * as for a pixmap.

-	     */

-            err = xp_export_surface(wid, pDRIDrawablePriv->sid,

-                                    client_id, key);

-            if (err != Success) {

-                xp_destroy_surface(pDRIDrawablePriv->sid);

-                free(pDRIDrawablePriv);

-		

-		/* 

-		 * Now set the dix privates to NULL that were previously set.

-		 * This prevents reusing an invalid pointer.

-		 */

-		if(pDrawable->type == DRAWABLE_WINDOW) {

-		    WindowPtr pWin = (WindowPtr)pDrawable;

-		    

-		    dixSetPrivate(&pWin->devPrivates, DRIWindowPrivKey, NULL);

-		} else if(pDrawable->type == DRAWABLE_PIXMAP) {

-		    PixmapPtr pPix = (PixmapPtr)pDrawable;

-		    

-		    dixSetPrivate(&pPix->devPrivates, DRIPixmapPrivKey, NULL);

-		}

-		

-                return FALSE;

-            }

-        }

-

-        pDRIDrawablePriv->key[0] = key[0];

-        pDRIDrawablePriv->key[1] = key[1];

-

-        ++pDRIPriv->nrWindows;

-

-        /* and stash it by surface id */

-        if (surface_hash == NULL)

-            surface_hash = x_hash_table_new(NULL, NULL, NULL, NULL);

-        x_hash_table_insert(surface_hash,

-                            x_cvt_uint_to_vptr(pDRIDrawablePriv->sid), pDRIDrawablePriv);

-

-        /* track this in case this window is destroyed */

-        AddResource(id, DRIDrawablePrivResType, (pointer)pDrawable);

-

-        /* Initialize shape */

-        DRIUpdateSurface(pDRIDrawablePriv, pDrawable);

-    }

-

-    pDRIDrawablePriv->refCount++;

-

-    *surface_id = pDRIDrawablePriv->sid;

-

-    if (ret_key != NULL) {

-        ret_key[0] = pDRIDrawablePriv->key[0];

-        ret_key[1] = pDRIDrawablePriv->key[1];

-    }

-

-    if (notify != NULL) {

-        pDRIDrawablePriv->notifiers = x_hook_add(pDRIDrawablePriv->notifiers,

-                                                 notify, notify_data);

-    }

-

-    return TRUE;

-}

-

-Bool

-DRIDestroySurface(ScreenPtr pScreen, Drawable id, DrawablePtr pDrawable,

-                  void (*notify) (void *, void *), void *notify_data)

-{

-    DRIDrawablePrivPtr  pDRIDrawablePriv;

-

-    if (pDrawable->type == DRAWABLE_WINDOW) {

-        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW((WindowPtr)pDrawable);

-    } else if (pDrawable->type == DRAWABLE_PIXMAP) {

-        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP((PixmapPtr)pDrawable);

-    } else {

-        return FALSE;

-    }

-

-    if (pDRIDrawablePriv != NULL) {

-	/*

-	 * This doesn't seem to be used, because notify is NULL in all callers.

-	 */

-

-        if (notify != NULL) {

-            pDRIDrawablePriv->notifiers = x_hook_remove(pDRIDrawablePriv->notifiers,

-                                                        notify, notify_data);

-        }

-

-	--pDRIDrawablePriv->refCount;

-

-	/* 

-	 * Check if the drawable privates still have a reference to the

-	 * surface.

-	 */

-

-        if (pDRIDrawablePriv->refCount <= 0) {

-            /*

-	     * This calls back to DRIDrawablePrivDelete which

-	     * frees the private area and dispatches events, if needed. 

-	     */

-            FreeResourceByType(id, DRIDrawablePrivResType, FALSE);

-        }

-    }

-

-    return TRUE;

-}

-

-/* 

- * The assumption is that this is called when the refCount of a surface

- * drops to <= 0, or the window/pixmap is destroyed.  

- */

-Bool

-DRIDrawablePrivDelete(pointer pResource, XID id)

-{

-    DrawablePtr         pDrawable = (DrawablePtr)pResource;

-    DRIScreenPrivPtr    pDRIPriv = DRI_SCREEN_PRIV(pDrawable->pScreen);

-    DRIDrawablePrivPtr  pDRIDrawablePriv = NULL;

-    WindowPtr           pWin = NULL;

-    PixmapPtr           pPix = NULL;

-

-    if (pDrawable->type == DRAWABLE_WINDOW) {

-        pWin = (WindowPtr)pDrawable;

-        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);

-    } else if (pDrawable->type == DRAWABLE_PIXMAP) {

-        pPix = (PixmapPtr)pDrawable;

-        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix);

-    }

-

-    if (pDRIDrawablePriv == NULL) {

-	/* 

-	 * We reuse __func__ and the resource type for the GLXPixmap code.

-	 * Attempt to free a pixmap buffer associated with the resource

-	 * if possible.

-	 */

-	return DRIFreePixmapImp(pDrawable);

-    }

-    

-    if (pDRIDrawablePriv->drawableIndex != -1) {

-        /* release drawable table entry */

-        pDRIPriv->DRIDrawables[pDRIDrawablePriv->drawableIndex] = NULL;

-    }

-

-    if (pDRIDrawablePriv->sid != 0) {

-	DRISurfaceNotify(pDRIDrawablePriv->sid, AppleDRISurfaceNotifyDestroyed);

-    }

-  

-

-    if (pDRIDrawablePriv->notifiers != NULL)

-        x_hook_free(pDRIDrawablePriv->notifiers);

-

-    free(pDRIDrawablePriv);

-

-    if (pDrawable->type == DRAWABLE_WINDOW) {

-	dixSetPrivate(&pWin->devPrivates, DRIWindowPrivKey, NULL);

-    } else if (pDrawable->type == DRAWABLE_PIXMAP) {

-	dixSetPrivate(&pPix->devPrivates, DRIPixmapPrivKey, NULL);

-    }

-

-    --pDRIPriv->nrWindows;

-

-    return TRUE;

-}

-

-void

-DRIWindowExposures(WindowPtr pWin, RegionPtr prgn, RegionPtr bsreg)

-{

-    ScreenPtr pScreen = pWin->drawable.pScreen;

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-    DRIDrawablePrivPtr pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);

-

-    if (pDRIDrawablePriv) {

-        /* FIXME: something? */

-    }

-

-    pScreen->WindowExposures = pDRIPriv->wrap.WindowExposures;

-

-    (*pScreen->WindowExposures)(pWin, prgn, bsreg);

-

-    pScreen->WindowExposures = DRIWindowExposures;

-}

-

-void

-DRICopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)

-{

-    ScreenPtr pScreen = pWin->drawable.pScreen;

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-    DRIDrawablePrivPtr pDRIDrawablePriv;

-

-    if (pDRIPriv->nrWindows > 0) {

-       pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);

-       if (pDRIDrawablePriv != NULL) {

-            DRIUpdateSurface(pDRIDrawablePriv, &pWin->drawable);

-       }

-    }

-

-    /* unwrap */

-    pScreen->CopyWindow = pDRIPriv->wrap.CopyWindow;

-

-    /* call lower layers */

-    (*pScreen->CopyWindow)(pWin, ptOldOrg, prgnSrc);

-

-    /* rewrap */

-    pScreen->CopyWindow = DRICopyWindow;

-}

-

-int

-DRIValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)

-{

-    ScreenPtr pScreen = pParent->drawable.pScreen;

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-    int returnValue;

-

-    /* unwrap */

-    pScreen->ValidateTree = pDRIPriv->wrap.ValidateTree;

-

-    /* call lower layers */

-    returnValue = (*pScreen->ValidateTree)(pParent, pChild, kind);

-

-    /* rewrap */

-    pScreen->ValidateTree = DRIValidateTree;

-

-    return returnValue;

-}

-

-void

-DRIPostValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)

-{

-    ScreenPtr pScreen;

-    DRIScreenPrivPtr pDRIPriv;

-

-    if (pParent) {

-        pScreen = pParent->drawable.pScreen;

-    } else {

-        pScreen = pChild->drawable.pScreen;

-    }

-    pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-

-    if (pDRIPriv->wrap.PostValidateTree) {

-        /* unwrap */

-        pScreen->PostValidateTree = pDRIPriv->wrap.PostValidateTree;

-

-        /* call lower layers */

-        (*pScreen->PostValidateTree)(pParent, pChild, kind);

-

-        /* rewrap */

-        pScreen->PostValidateTree = DRIPostValidateTree;

-    }

-}

-

-void

-DRIClipNotify(WindowPtr pWin, int dx, int dy)

-{

-    ScreenPtr pScreen = pWin->drawable.pScreen;

-    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);

-    DRIDrawablePrivPtr  pDRIDrawablePriv;

-

-    if ((pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin))) {

-        DRIUpdateSurface(pDRIDrawablePriv, &pWin->drawable);

-    }

-

-    if (pDRIPriv->wrap.ClipNotify) {

-        pScreen->ClipNotify = pDRIPriv->wrap.ClipNotify;

-

-        (*pScreen->ClipNotify)(pWin, dx, dy);

-

-        pScreen->ClipNotify = DRIClipNotify;

-    }

-}

-

-/* This lets us get at the unwrapped functions so that they can correctly

- * call the lower level functions, and choose whether they will be

- * called at every level of recursion (eg in validatetree).

- */

-DRIWrappedFuncsRec *

-DRIGetWrappedFuncs(ScreenPtr pScreen)

-{

-    return &(DRI_SCREEN_PRIV(pScreen)->wrap);

-}

-

-void

-DRIQueryVersion(int *majorVersion,

-                int *minorVersion,

-                int *patchVersion)

-{

-    *majorVersion = APPLE_DRI_MAJOR_VERSION;

-    *minorVersion = APPLE_DRI_MINOR_VERSION;

-    *patchVersion = APPLE_DRI_PATCH_VERSION;

-}

-

-/* 

- * Note: this also cleans up the hash table in addition to notifying clients.

- * The sid/surface-id should not be used after this, because it will be

- * invalid.

- */ 

-void

-DRISurfaceNotify(xp_surface_id id, int kind)

-{

-    DRIDrawablePrivPtr pDRIDrawablePriv = NULL;

-    DRISurfaceNotifyArg arg;

-

-    arg.id = id;

-    arg.kind = kind;

-

-    if (surface_hash != NULL)

-    {

-        pDRIDrawablePriv = x_hash_table_lookup(surface_hash,

-                                               x_cvt_uint_to_vptr(id), NULL);

-    }

-

-    if (pDRIDrawablePriv == NULL)

-        return;

-

-    if (kind == AppleDRISurfaceNotifyDestroyed)

-    {

-	x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(id));

-    }

-

-    x_hook_run(pDRIDrawablePriv->notifiers, &arg);

-

-    if (kind == AppleDRISurfaceNotifyDestroyed)

-    {

-	xp_error error;

-	

-	error = xp_destroy_surface(pDRIDrawablePriv->sid);

-	

-	if(error) 

-	    ErrorF("%s: xp_destroy_surface failed: %d\n", __func__, error);

-		

-	/* Guard against reuse, even though we are freeing after this. */

-	pDRIDrawablePriv->sid = 0;

-

-        FreeResourceByType(pDRIDrawablePriv->pDraw->id,

-                           DRIDrawablePrivResType, FALSE);

-    }

-}

-

-/*

- * This creates a shared memory buffer for use with GLXPixmaps

- * and AppleSGLX.

- */

-Bool DRICreatePixmap(ScreenPtr pScreen, Drawable id,

-		     DrawablePtr pDrawable, char *path,

-		     size_t pathmax) 

-{

-    DRIPixmapBufferPtr shared;

-    PixmapPtr pPix;

-    

-    if(pDrawable->type != DRAWABLE_PIXMAP)

-	return FALSE;

-

-    pPix = (PixmapPtr)pDrawable;

-

-    shared = malloc(sizeof(*shared));

-    if(NULL == shared) {

-        FatalError("failed to allocate DRIPixmapBuffer in %s\n", __func__);

-    }

-        

-    shared->pDrawable = pDrawable;

-    shared->refCount = 1;

-

-    if(pDrawable->bitsPerPixel >= 24) {

-	shared->bytesPerPixel = 4;

-    } else if(pDrawable->bitsPerPixel <= 16) {

-	shared->bytesPerPixel = 2;

-    }

-    

-    shared->width = pDrawable->width;

-    shared->height = pDrawable->height;

-    

-    if(-1 == snprintf(shared->shmPath, sizeof(shared->shmPath),

-                      "%d_0x%lx", getpid(),

-                      (unsigned long)id)) {

-        FatalError("buffer overflow in %s\n", __func__);

-    }

-    

-    shared->fd = shm_open(shared->shmPath, 

-                          O_RDWR | O_EXCL | O_CREAT, 

-                          S_IRUSR | S_IWUSR | S_IROTH | S_IWOTH);

-    

-    if(-1 == shared->fd) {

-	free(shared);

-        return FALSE;

-    }   

-    

-    shared->length = shared->width * shared->height * shared->bytesPerPixel;

-    

-    if(-1 == ftruncate(shared->fd, shared->length)) {

-	ErrorF("failed to ftruncate (extend) file.");

-	shm_unlink(shared->shmPath);

-	close(shared->fd);

-	free(shared);

-	return FALSE;

-    }

-

-    shared->buffer = mmap(NULL, shared->length,

-                          PROT_READ | PROT_WRITE,

-                          MAP_FILE | MAP_SHARED, shared->fd, 0);

-    

-    if(MAP_FAILED == shared->buffer) {

-	ErrorF("failed to mmap shared memory.");

-	shm_unlink(shared->shmPath);

-	close(shared->fd);

-	free(shared);

-	return FALSE;

-    }

-    

-    strncpy(path, shared->shmPath, pathmax);

-    path[pathmax - 1] = '\0';

-    

-    dixSetPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey, shared);

-

-    AddResource(id, DRIDrawablePrivResType, (pointer)pDrawable);

-

-    return TRUE;

-}

-

-

-Bool DRIGetPixmapData(DrawablePtr pDrawable, int *width, int *height,

-		      int *pitch, int *bpp, void **ptr) {

-    PixmapPtr pPix;

-    DRIPixmapBufferPtr shared;

-

-    if(pDrawable->type != DRAWABLE_PIXMAP)

-	return FALSE;

-

-    pPix = (PixmapPtr)pDrawable;

-

-    shared = dixLookupPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey);

-

-    if(NULL == shared)

-	return FALSE;

-

-    assert(pDrawable->width == shared->width);

-    assert(pDrawable->height == shared->height);

-    

-    *width = shared->width;

-    *height = shared->height;

-    *bpp = shared->bytesPerPixel;

-    *pitch = shared->width * shared->bytesPerPixel;

-    *ptr = shared->buffer;    

-

-    return TRUE;

-}

-

-static Bool

-DRIFreePixmapImp(DrawablePtr pDrawable) {

-    DRIPixmapBufferPtr shared;

-    PixmapPtr pPix;

-

-    if(pDrawable->type != DRAWABLE_PIXMAP)

-	return FALSE;

-

-    pPix = (PixmapPtr)pDrawable;

-

-    shared = dixLookupPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey);

-

-    if(NULL == shared)

-	return FALSE;

-

-    close(shared->fd);

-    munmap(shared->buffer, shared->length);

-    shm_unlink(shared->shmPath);

-    free(shared);

-

-    dixSetPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey, (pointer)NULL);

-

-    return TRUE;

-}

-

-void 

-DRIDestroyPixmap(DrawablePtr pDrawable) {

-    if(DRIFreePixmapImp(pDrawable))

-	FreeResourceByType(pDrawable->id, DRIDrawablePrivResType, FALSE);

-

-}

+/**************************************************************************
+
+Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+Copyright 2000 VA Linux Systems, Inc.
+Copyright (c) 2002, 2009 Apple Computer, Inc.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sub license, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Jens Owen <jens@valinux.com>
+ *   Rickard E. (Rik) Faith <faith@valinux.com>
+ *
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#ifdef XFree86LOADER
+#include "xf86.h"
+#include "xf86_ansic.h"
+#else
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "misc.h"
+#include "dixstruct.h"
+#include "extnsionst.h"
+#include "colormapst.h"
+#include "cursorstr.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "servermd.h"
+#define _APPLEDRI_SERVER_
+#include "appledristr.h"
+#include "swaprep.h"
+#include "dri.h"
+#include "dristruct.h"
+#include "mi.h"
+#include "mipointer.h"
+#include "rootless.h"
+#include "x-hash.h"
+#include "x-hook.h"
+#include "driWrap.h"
+
+#include <AvailabilityMacros.h>
+
+static DevPrivateKeyRec DRIScreenPrivKeyRec;
+#define DRIScreenPrivKey (&DRIScreenPrivKeyRec)
+static DevPrivateKeyRec DRIWindowPrivKeyRec;
+#define DRIWindowPrivKey (&DRIWindowPrivKeyRec)
+static DevPrivateKeyRec DRIPixmapPrivKeyRec;
+#define DRIPixmapPrivKey (&DRIPixmapPrivKeyRec)
+static DevPrivateKeyRec DRIPixmapBufferPrivKeyRec;
+#define DRIPixmapBufferPrivKey (&DRIPixmapBufferPrivKeyRec)
+
+static RESTYPE DRIDrawablePrivResType;
+
+static x_hash_table *surface_hash;      /* maps surface ids -> drawablePrivs */
+
+static Bool DRIFreePixmapImp(DrawablePtr pDrawable);
+
+typedef struct {
+    DrawablePtr pDrawable;
+    int refCount;
+    int bytesPerPixel;
+    int width;
+    int height;
+    char shmPath[PATH_MAX];
+    int fd; /* From shm_open (for now) */
+    size_t length; /* length of buffer */
+    void *buffer;       
+} DRIPixmapBuffer, *DRIPixmapBufferPtr;
+
+Bool
+DRIScreenInit(ScreenPtr pScreen)
+{
+    DRIScreenPrivPtr    pDRIPriv;
+    int                 i;
+
+    if (!dixRegisterPrivateKey(&DRIScreenPrivKeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+    if (!dixRegisterPrivateKey(&DRIWindowPrivKeyRec, PRIVATE_WINDOW, 0))
+	return FALSE;
+    if (!dixRegisterPrivateKey(&DRIPixmapPrivKeyRec, PRIVATE_PIXMAP, 0))
+	return FALSE;
+    if (!dixRegisterPrivateKey(&DRIPixmapBufferPrivKeyRec, PRIVATE_PIXMAP, 0))
+	return FALSE;
+
+    pDRIPriv = (DRIScreenPrivPtr) calloc(1, sizeof(DRIScreenPrivRec));
+    if (!pDRIPriv) {
+	dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
+        return FALSE;
+    }
+
+    dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, pDRIPriv);
+    pDRIPriv->directRenderingSupport = TRUE;
+    pDRIPriv->nrWindows = 0;
+
+    /* Initialize drawable tables */
+    for (i = 0; i < DRI_MAX_DRAWABLES; i++) {
+        pDRIPriv->DRIDrawables[i] = NULL;
+    }
+
+    return TRUE;
+}
+
+Bool
+DRIFinishScreenInit(ScreenPtr pScreen)
+{
+    DRIScreenPrivPtr  pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+
+    /* Wrap DRI support */
+    pDRIPriv->wrap.ValidateTree = pScreen->ValidateTree;
+    pScreen->ValidateTree = DRIValidateTree;
+
+    pDRIPriv->wrap.PostValidateTree = pScreen->PostValidateTree;
+    pScreen->PostValidateTree = DRIPostValidateTree;
+
+    pDRIPriv->wrap.WindowExposures = pScreen->WindowExposures;
+    pScreen->WindowExposures = DRIWindowExposures;
+
+    pDRIPriv->wrap.CopyWindow = pScreen->CopyWindow;
+    pScreen->CopyWindow = DRICopyWindow;
+
+    pDRIPriv->wrap.ClipNotify = pScreen->ClipNotify;
+    pScreen->ClipNotify = DRIClipNotify;
+
+    //    ErrorF("[DRI] screen %d installation complete\n", pScreen->myNum);
+
+    return DRIWrapInit(pScreen);
+}
+
+void
+DRICloseScreen(ScreenPtr pScreen)
+{
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+
+    if (pDRIPriv && pDRIPriv->directRenderingSupport) {
+        free(pDRIPriv);
+	dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
+    }
+}
+
+Bool
+DRIExtensionInit(void)
+{
+    DRIDrawablePrivResType = CreateNewResourceType(DRIDrawablePrivDelete,
+						   "DRIDrawable");
+
+    return DRIDrawablePrivResType != 0;
+}
+
+void
+DRIReset(void)
+{
+    /*
+     * This stub routine is called when the X Server recycles, resources
+     * allocated by DRIExtensionInit need to be managed here.
+     *
+     * Currently this routine is a stub because all the interesting resources
+     * are managed via the screen init process.
+     */
+}
+
+Bool
+DRIQueryDirectRenderingCapable(ScreenPtr pScreen, Bool* isCapable)
+{
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+
+    if (pDRIPriv)
+        *isCapable = pDRIPriv->directRenderingSupport;
+    else
+        *isCapable = FALSE;
+
+    return TRUE;
+}
+
+Bool
+DRIAuthConnection(ScreenPtr pScreen, unsigned int magic)
+{
+#if 0
+    /* FIXME: something? */
+
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+
+    if (drmAuthMagic(pDRIPriv->drmFD, magic)) return FALSE;
+#endif
+    return TRUE;
+}
+
+static void
+DRIUpdateSurface(DRIDrawablePrivPtr pDRIDrawablePriv, DrawablePtr pDraw)
+{
+    xp_window_changes wc;
+    unsigned int flags = 0;
+
+    if (pDRIDrawablePriv->sid == 0)
+        return;
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
+    wc.depth = (pDraw->bitsPerPixel == 32 ? XP_DEPTH_ARGB8888
+                : pDraw->bitsPerPixel == 16 ? XP_DEPTH_RGB555 : XP_DEPTH_NIL);
+    if (wc.depth != XP_DEPTH_NIL)
+        flags |= XP_DEPTH;
+#endif
+
+    if (pDraw->type == DRAWABLE_WINDOW) {
+        WindowPtr pWin = (WindowPtr) pDraw;
+        WindowPtr pTopWin = TopLevelParent(pWin);
+
+        wc.x = pWin->drawable.x - (pTopWin->drawable.x - pTopWin->borderWidth);
+        wc.y = pWin->drawable.y - (pTopWin->drawable.y - pTopWin->borderWidth);
+        wc.width = pWin->drawable.width + 2 * pWin->borderWidth;
+        wc.height = pWin->drawable.height + 2 * pWin->borderWidth;
+        wc.bit_gravity = XP_GRAVITY_NONE;
+
+        wc.shape_nrects = RegionNumRects(&pWin->clipList);
+        wc.shape_rects = RegionRects(&pWin->clipList);
+        wc.shape_tx = - (pTopWin->drawable.x - pTopWin->borderWidth);
+        wc.shape_ty = - (pTopWin->drawable.y - pTopWin->borderWidth);
+
+        flags |= XP_BOUNDS | XP_SHAPE;
+
+    } else if (pDraw->type == DRAWABLE_PIXMAP) {
+        wc.x = 0;
+        wc.y = 0;
+        wc.width = pDraw->width;
+        wc.height = pDraw->height;
+        wc.bit_gravity = XP_GRAVITY_NONE;
+        flags |= XP_BOUNDS;
+    }
+
+    xp_configure_surface(pDRIDrawablePriv->sid, flags, &wc);
+}
+
+/* Return NULL if an error occurs. */
+static DRIDrawablePrivPtr
+CreateSurfaceForWindow(ScreenPtr pScreen, WindowPtr pWin, xp_window_id *widPtr) {
+    DRIDrawablePrivPtr pDRIDrawablePriv;
+    xp_window_id wid = 0;
+
+    *widPtr = 0;
+
+    pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
+
+    if (pDRIDrawablePriv == NULL) {
+	xp_error err;
+	xp_window_changes wc;
+	
+	/* allocate a DRI Window Private record */
+	if (!(pDRIDrawablePriv = malloc(sizeof(*pDRIDrawablePriv)))) {
+	    return NULL;
+	}
+	
+	pDRIDrawablePriv->pDraw = (DrawablePtr)pWin;
+	pDRIDrawablePriv->pScreen = pScreen;
+	pDRIDrawablePriv->refCount = 0;
+	pDRIDrawablePriv->drawableIndex = -1;
+	pDRIDrawablePriv->notifiers = NULL;
+	
+	/* find the physical window */
+	wid = x_cvt_vptr_to_uint(RootlessFrameForWindow(pWin, TRUE));
+
+	if (wid == 0) {
+	    free(pDRIDrawablePriv);
+	    return NULL;
+	}
+	
+	/* allocate the physical surface */
+	err = xp_create_surface(wid, &pDRIDrawablePriv->sid);
+
+	if (err != Success) {
+	    free(pDRIDrawablePriv);
+	    return NULL;
+	}
+
+	/* Make it visible */
+	wc.stack_mode = XP_MAPPED_ABOVE;
+	wc.sibling = 0;
+	err = xp_configure_surface(pDRIDrawablePriv->sid, XP_STACKING, &wc);
+
+	if (err != Success) {
+	    xp_destroy_surface(pDRIDrawablePriv->sid);
+	    free(pDRIDrawablePriv);
+	    return NULL;
+	}
+
+	/* save private off of preallocated index */
+	dixSetPrivate(&pWin->devPrivates, DRIWindowPrivKey,
+		      pDRIDrawablePriv);
+    }
+
+    *widPtr = wid;
+
+    return pDRIDrawablePriv;
+}
+
+/* Return NULL if an error occurs. */
+static DRIDrawablePrivPtr
+CreateSurfaceForPixmap(ScreenPtr pScreen, PixmapPtr pPix) {
+    DRIDrawablePrivPtr pDRIDrawablePriv;
+     
+    pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix);
+
+    if (pDRIDrawablePriv == NULL) {
+	xp_error err;
+
+	/* allocate a DRI Window Private record */
+	if (!(pDRIDrawablePriv = calloc(1, sizeof(*pDRIDrawablePriv)))) {
+	    return NULL;
+	}
+	
+	pDRIDrawablePriv->pDraw = (DrawablePtr)pPix;
+	pDRIDrawablePriv->pScreen = pScreen;
+	pDRIDrawablePriv->refCount = 0;
+	pDRIDrawablePriv->drawableIndex = -1;
+	pDRIDrawablePriv->notifiers = NULL;
+	
+	/* Passing a null window id to Xplugin in 10.3+ asks for
+	   an accelerated offscreen surface. */
+	
+	err = xp_create_surface(0, &pDRIDrawablePriv->sid);
+	if (err != Success) {
+	    free(pDRIDrawablePriv);
+	    return NULL;
+	}
+
+	/* 
+	 * The DRIUpdateSurface will be called to resize the surface
+	 * after this function, if the export is successful.
+	 */
+
+	/* save private off of preallocated index */
+	dixSetPrivate(&pPix->devPrivates, DRIPixmapPrivKey,
+		      pDRIDrawablePriv);
+    }
+    
+    return pDRIDrawablePriv;
+}
+
+
+Bool
+DRICreateSurface(ScreenPtr pScreen, Drawable id,
+                 DrawablePtr pDrawable, xp_client_id client_id,
+                 xp_surface_id *surface_id, unsigned int ret_key[2],
+                 void (*notify) (void *arg, void *data), void *notify_data)
+{
+    DRIScreenPrivPtr    pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+    xp_window_id        wid = 0;
+    DRIDrawablePrivPtr  pDRIDrawablePriv;
+
+    if (pDrawable->type == DRAWABLE_WINDOW) {
+	pDRIDrawablePriv = CreateSurfaceForWindow(pScreen, 
+						  (WindowPtr)pDrawable, &wid);
+
+	if(NULL == pDRIDrawablePriv)
+	    return FALSE; /*error*/
+    }
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
+    else if (pDrawable->type == DRAWABLE_PIXMAP) {
+	pDRIDrawablePriv = CreateSurfaceForPixmap(pScreen, 
+						  (PixmapPtr)pDrawable);
+
+	if(NULL == pDRIDrawablePriv)
+	    return FALSE; /*error*/
+    }
+#endif
+    else {
+	/* We handle GLXPbuffers in a different way (via CGL). */
+        return FALSE;
+    }
+    
+    
+    /* Finish initialization of new surfaces */
+    if (pDRIDrawablePriv->refCount == 0) {
+        unsigned int key[2] = {0};
+        xp_error err;
+
+        /* try to give the client access to the surface */
+        if (client_id != 0) {
+	    /*
+	     * Xplugin accepts a 0 wid if the surface id is offscreen, such 
+	     * as for a pixmap.
+	     */
+            err = xp_export_surface(wid, pDRIDrawablePriv->sid,
+                                    client_id, key);
+            if (err != Success) {
+                xp_destroy_surface(pDRIDrawablePriv->sid);
+                free(pDRIDrawablePriv);
+		
+		/* 
+		 * Now set the dix privates to NULL that were previously set.
+		 * This prevents reusing an invalid pointer.
+		 */
+		if(pDrawable->type == DRAWABLE_WINDOW) {
+		    WindowPtr pWin = (WindowPtr)pDrawable;
+		    
+		    dixSetPrivate(&pWin->devPrivates, DRIWindowPrivKey, NULL);
+		} else if(pDrawable->type == DRAWABLE_PIXMAP) {
+		    PixmapPtr pPix = (PixmapPtr)pDrawable;
+		    
+		    dixSetPrivate(&pPix->devPrivates, DRIPixmapPrivKey, NULL);
+		}
+		
+                return FALSE;
+            }
+        }
+
+        pDRIDrawablePriv->key[0] = key[0];
+        pDRIDrawablePriv->key[1] = key[1];
+
+        ++pDRIPriv->nrWindows;
+
+        /* and stash it by surface id */
+        if (surface_hash == NULL)
+            surface_hash = x_hash_table_new(NULL, NULL, NULL, NULL);
+        x_hash_table_insert(surface_hash,
+                            x_cvt_uint_to_vptr(pDRIDrawablePriv->sid), pDRIDrawablePriv);
+
+        /* track this in case this window is destroyed */
+        AddResource(id, DRIDrawablePrivResType, (pointer)pDrawable);
+
+        /* Initialize shape */
+        DRIUpdateSurface(pDRIDrawablePriv, pDrawable);
+    }
+
+    pDRIDrawablePriv->refCount++;
+
+    *surface_id = pDRIDrawablePriv->sid;
+
+    if (ret_key != NULL) {
+        ret_key[0] = pDRIDrawablePriv->key[0];
+        ret_key[1] = pDRIDrawablePriv->key[1];
+    }
+
+    if (notify != NULL) {
+        pDRIDrawablePriv->notifiers = x_hook_add(pDRIDrawablePriv->notifiers,
+                                                 notify, notify_data);
+    }
+
+    return TRUE;
+}
+
+Bool
+DRIDestroySurface(ScreenPtr pScreen, Drawable id, DrawablePtr pDrawable,
+                  void (*notify) (void *, void *), void *notify_data)
+{
+    DRIDrawablePrivPtr  pDRIDrawablePriv;
+
+    if (pDrawable->type == DRAWABLE_WINDOW) {
+        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW((WindowPtr)pDrawable);
+    } else if (pDrawable->type == DRAWABLE_PIXMAP) {
+        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP((PixmapPtr)pDrawable);
+    } else {
+        return FALSE;
+    }
+
+    if (pDRIDrawablePriv != NULL) {
+	/*
+	 * This doesn't seem to be used, because notify is NULL in all callers.
+	 */
+
+        if (notify != NULL) {
+            pDRIDrawablePriv->notifiers = x_hook_remove(pDRIDrawablePriv->notifiers,
+                                                        notify, notify_data);
+        }
+
+	--pDRIDrawablePriv->refCount;
+
+	/* 
+	 * Check if the drawable privates still have a reference to the
+	 * surface.
+	 */
+
+        if (pDRIDrawablePriv->refCount <= 0) {
+            /*
+	     * This calls back to DRIDrawablePrivDelete which
+	     * frees the private area and dispatches events, if needed. 
+	     */
+            FreeResourceByType(id, DRIDrawablePrivResType, FALSE);
+        }
+    }
+
+    return TRUE;
+}
+
+/* 
+ * The assumption is that this is called when the refCount of a surface
+ * drops to <= 0, or the window/pixmap is destroyed.  
+ */
+Bool
+DRIDrawablePrivDelete(pointer pResource, XID id)
+{
+    DrawablePtr         pDrawable = (DrawablePtr)pResource;
+    DRIScreenPrivPtr    pDRIPriv = DRI_SCREEN_PRIV(pDrawable->pScreen);
+    DRIDrawablePrivPtr  pDRIDrawablePriv = NULL;
+    WindowPtr           pWin = NULL;
+    PixmapPtr           pPix = NULL;
+
+    if (pDrawable->type == DRAWABLE_WINDOW) {
+        pWin = (WindowPtr)pDrawable;
+        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
+    } else if (pDrawable->type == DRAWABLE_PIXMAP) {
+        pPix = (PixmapPtr)pDrawable;
+        pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix);
+    }
+
+    if (pDRIDrawablePriv == NULL) {
+	/* 
+	 * We reuse __func__ and the resource type for the GLXPixmap code.
+	 * Attempt to free a pixmap buffer associated with the resource
+	 * if possible.
+	 */
+	return DRIFreePixmapImp(pDrawable);
+    }
+    
+    if (pDRIDrawablePriv->drawableIndex != -1) {
+        /* release drawable table entry */
+        pDRIPriv->DRIDrawables[pDRIDrawablePriv->drawableIndex] = NULL;
+    }
+
+    if (pDRIDrawablePriv->sid != 0) {
+	DRISurfaceNotify(pDRIDrawablePriv->sid, AppleDRISurfaceNotifyDestroyed);
+    }
+  
+
+    if (pDRIDrawablePriv->notifiers != NULL)
+        x_hook_free(pDRIDrawablePriv->notifiers);
+
+    free(pDRIDrawablePriv);
+
+    if (pDrawable->type == DRAWABLE_WINDOW) {
+	dixSetPrivate(&pWin->devPrivates, DRIWindowPrivKey, NULL);
+    } else if (pDrawable->type == DRAWABLE_PIXMAP) {
+	dixSetPrivate(&pPix->devPrivates, DRIPixmapPrivKey, NULL);
+    }
+
+    --pDRIPriv->nrWindows;
+
+    return TRUE;
+}
+
+void
+DRIWindowExposures(WindowPtr pWin, RegionPtr prgn, RegionPtr bsreg)
+{
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+    DRIDrawablePrivPtr pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
+
+    if (pDRIDrawablePriv) {
+        /* FIXME: something? */
+    }
+
+    pScreen->WindowExposures = pDRIPriv->wrap.WindowExposures;
+
+    (*pScreen->WindowExposures)(pWin, prgn, bsreg);
+
+    pScreen->WindowExposures = DRIWindowExposures;
+}
+
+void
+DRICopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
+{
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+    DRIDrawablePrivPtr pDRIDrawablePriv;
+
+    if (pDRIPriv->nrWindows > 0) {
+       pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin);
+       if (pDRIDrawablePriv != NULL) {
+            DRIUpdateSurface(pDRIDrawablePriv, &pWin->drawable);
+       }
+    }
+
+    /* unwrap */
+    pScreen->CopyWindow = pDRIPriv->wrap.CopyWindow;
+
+    /* call lower layers */
+    (*pScreen->CopyWindow)(pWin, ptOldOrg, prgnSrc);
+
+    /* rewrap */
+    pScreen->CopyWindow = DRICopyWindow;
+}
+
+int
+DRIValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)
+{
+    ScreenPtr pScreen = pParent->drawable.pScreen;
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+    int returnValue;
+
+    /* unwrap */
+    pScreen->ValidateTree = pDRIPriv->wrap.ValidateTree;
+
+    /* call lower layers */
+    returnValue = (*pScreen->ValidateTree)(pParent, pChild, kind);
+
+    /* rewrap */
+    pScreen->ValidateTree = DRIValidateTree;
+
+    return returnValue;
+}
+
+void
+DRIPostValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)
+{
+    ScreenPtr pScreen;
+    DRIScreenPrivPtr pDRIPriv;
+
+    if (pParent) {
+        pScreen = pParent->drawable.pScreen;
+    } else {
+        pScreen = pChild->drawable.pScreen;
+    }
+    pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+
+    if (pDRIPriv->wrap.PostValidateTree) {
+        /* unwrap */
+        pScreen->PostValidateTree = pDRIPriv->wrap.PostValidateTree;
+
+        /* call lower layers */
+        (*pScreen->PostValidateTree)(pParent, pChild, kind);
+
+        /* rewrap */
+        pScreen->PostValidateTree = DRIPostValidateTree;
+    }
+}
+
+void
+DRIClipNotify(WindowPtr pWin, int dx, int dy)
+{
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+    DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
+    DRIDrawablePrivPtr  pDRIDrawablePriv;
+
+    if ((pDRIDrawablePriv = DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin))) {
+        DRIUpdateSurface(pDRIDrawablePriv, &pWin->drawable);
+    }
+
+    if (pDRIPriv->wrap.ClipNotify) {
+        pScreen->ClipNotify = pDRIPriv->wrap.ClipNotify;
+
+        (*pScreen->ClipNotify)(pWin, dx, dy);
+
+        pScreen->ClipNotify = DRIClipNotify;
+    }
+}
+
+/* This lets us get at the unwrapped functions so that they can correctly
+ * call the lower level functions, and choose whether they will be
+ * called at every level of recursion (eg in validatetree).
+ */
+DRIWrappedFuncsRec *
+DRIGetWrappedFuncs(ScreenPtr pScreen)
+{
+    return &(DRI_SCREEN_PRIV(pScreen)->wrap);
+}
+
+void
+DRIQueryVersion(int *majorVersion,
+                int *minorVersion,
+                int *patchVersion)
+{
+    *majorVersion = APPLE_DRI_MAJOR_VERSION;
+    *minorVersion = APPLE_DRI_MINOR_VERSION;
+    *patchVersion = APPLE_DRI_PATCH_VERSION;
+}
+
+/* 
+ * Note: this also cleans up the hash table in addition to notifying clients.
+ * The sid/surface-id should not be used after this, because it will be
+ * invalid.
+ */ 
+void
+DRISurfaceNotify(xp_surface_id id, int kind)
+{
+    DRIDrawablePrivPtr pDRIDrawablePriv = NULL;
+    DRISurfaceNotifyArg arg;
+
+    arg.id = id;
+    arg.kind = kind;
+
+    if (surface_hash != NULL)
+    {
+        pDRIDrawablePriv = x_hash_table_lookup(surface_hash,
+                                               x_cvt_uint_to_vptr(id), NULL);
+    }
+
+    if (pDRIDrawablePriv == NULL)
+        return;
+
+    if (kind == AppleDRISurfaceNotifyDestroyed)
+    {
+	x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(id));
+    }
+
+    x_hook_run(pDRIDrawablePriv->notifiers, &arg);
+
+    if (kind == AppleDRISurfaceNotifyDestroyed)
+    {
+	xp_error error;
+	
+	error = xp_destroy_surface(pDRIDrawablePriv->sid);
+	
+	if(error) 
+	    ErrorF("%s: xp_destroy_surface failed: %d\n", __func__, error);
+		
+	/* Guard against reuse, even though we are freeing after this. */
+	pDRIDrawablePriv->sid = 0;
+
+        FreeResourceByType(pDRIDrawablePriv->pDraw->id,
+                           DRIDrawablePrivResType, FALSE);
+    }
+}
+
+/*
+ * This creates a shared memory buffer for use with GLXPixmaps
+ * and AppleSGLX.
+ */
+Bool DRICreatePixmap(ScreenPtr pScreen, Drawable id,
+		     DrawablePtr pDrawable, char *path,
+		     size_t pathmax) 
+{
+    DRIPixmapBufferPtr shared;
+    PixmapPtr pPix;
+    
+    if(pDrawable->type != DRAWABLE_PIXMAP)
+	return FALSE;
+
+    pPix = (PixmapPtr)pDrawable;
+
+    shared = malloc(sizeof(*shared));
+    if(NULL == shared) {
+        FatalError("failed to allocate DRIPixmapBuffer in %s\n", __func__);
+    }
+        
+    shared->pDrawable = pDrawable;
+    shared->refCount = 1;
+
+    if(pDrawable->bitsPerPixel >= 24) {
+	shared->bytesPerPixel = 4;
+    } else if(pDrawable->bitsPerPixel <= 16) {
+	shared->bytesPerPixel = 2;
+    }
+    
+    shared->width = pDrawable->width;
+    shared->height = pDrawable->height;
+    
+    if(-1 == snprintf(shared->shmPath, sizeof(shared->shmPath),
+                      "%d_0x%lx", getpid(),
+                      (unsigned long)id)) {
+        FatalError("buffer overflow in %s\n", __func__);
+    }
+    
+    shared->fd = shm_open(shared->shmPath, 
+                          O_RDWR | O_EXCL | O_CREAT, 
+                          S_IRUSR | S_IWUSR | S_IROTH | S_IWOTH);
+    
+    if(-1 == shared->fd) {
+	free(shared);
+        return FALSE;
+    }   
+    
+    shared->length = shared->width * shared->height * shared->bytesPerPixel;
+    
+    if(-1 == ftruncate(shared->fd, shared->length)) {
+	ErrorF("failed to ftruncate (extend) file.");
+	shm_unlink(shared->shmPath);
+	close(shared->fd);
+	free(shared);
+	return FALSE;
+    }
+
+    shared->buffer = mmap(NULL, shared->length,
+                          PROT_READ | PROT_WRITE,
+                          MAP_FILE | MAP_SHARED, shared->fd, 0);
+    
+    if(MAP_FAILED == shared->buffer) {
+	ErrorF("failed to mmap shared memory.");
+	shm_unlink(shared->shmPath);
+	close(shared->fd);
+	free(shared);
+	return FALSE;
+    }
+    
+    strncpy(path, shared->shmPath, pathmax);
+    path[pathmax - 1] = '\0';
+    
+    dixSetPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey, shared);
+
+    AddResource(id, DRIDrawablePrivResType, (pointer)pDrawable);
+
+    return TRUE;
+}
+
+
+Bool DRIGetPixmapData(DrawablePtr pDrawable, int *width, int *height,
+		      int *pitch, int *bpp, void **ptr) {
+    PixmapPtr pPix;
+    DRIPixmapBufferPtr shared;
+
+    if(pDrawable->type != DRAWABLE_PIXMAP)
+	return FALSE;
+
+    pPix = (PixmapPtr)pDrawable;
+
+    shared = dixLookupPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey);
+
+    if(NULL == shared)
+	return FALSE;
+
+    assert(pDrawable->width == shared->width);
+    assert(pDrawable->height == shared->height);
+    
+    *width = shared->width;
+    *height = shared->height;
+    *bpp = shared->bytesPerPixel;
+    *pitch = shared->width * shared->bytesPerPixel;
+    *ptr = shared->buffer;    
+
+    return TRUE;
+}
+
+static Bool
+DRIFreePixmapImp(DrawablePtr pDrawable) {
+    DRIPixmapBufferPtr shared;
+    PixmapPtr pPix;
+
+    if(pDrawable->type != DRAWABLE_PIXMAP)
+	return FALSE;
+
+    pPix = (PixmapPtr)pDrawable;
+
+    shared = dixLookupPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey);
+
+    if(NULL == shared)
+	return FALSE;
+
+    close(shared->fd);
+    munmap(shared->buffer, shared->length);
+    shm_unlink(shared->shmPath);
+    free(shared);
+
+    dixSetPrivate(&pPix->devPrivates, DRIPixmapBufferPrivKey, (pointer)NULL);
+
+    return TRUE;
+}
+
+void 
+DRIDestroyPixmap(DrawablePtr pDrawable) {
+    if(DRIFreePixmapImp(pDrawable))
+	FreeResourceByType(pDrawable->id, DRIDrawablePrivResType, FALSE);
+
+}