xserver git update 15/5/2010

1 files changed, 953 insertions, 953 deletions

diff --git a/xorg-server/hw/xquartz/xpr/dri.c b/xorg-server/hw/xquartz/xpr/dri.c
index 0a58b29f3..363809d0d 100644
--- a/xorg-server/hw/xquartz/xpr/dri.c
+++ b/xorg-server/hw/xquartz/xpr/dri.c
@@ -1,953 +1,953 @@
-/**************************************************************************
-
-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 int DRIScreenPrivKeyIndex;
-static DevPrivateKey DRIScreenPrivKey = &DRIScreenPrivKeyIndex;
-static int DRIWindowPrivKeyIndex;
-static DevPrivateKey DRIWindowPrivKey = &DRIWindowPrivKeyIndex;
-static int DRIPixmapPrivKeyIndex;
-static DevPrivateKey DRIPixmapPrivKey = &DRIPixmapPrivKeyIndex;
-static int DRIPixmapBufferPrivKeyIndex;
-static DevPrivateKey DRIPixmapBufferPrivKey = &DRIPixmapBufferPrivKeyIndex;
-
-static RESTYPE DRIDrawablePrivResType;
-
-static x_hash_table *surface_hash;      /* maps surface ids -> drawablePrivs */
-
-static Bool DRIFreePixmapImp(DrawablePtr pDrawable);
-
-/* FIXME: don't hardcode this? */
-#define CG_INFO_FILE "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/Resources/Info-macos.plist"
-
-/* Corresponds to SU Jaguar Green */
-#define CG_REQUIRED_MAJOR 1
-#define CG_REQUIRED_MINOR 157
-#define CG_REQUIRED_MICRO 11
-
-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;
-
-/* Returns version as major.minor.micro in 10.10.10 fixed form */
-static unsigned int
-get_cg_version (void)
-{
-    static unsigned int version;
-
-    FILE *fh;
-    char *ptr;
-
-    if (version != 0)
-        return version;
-
-    /* I tried CFBundleGetVersion, but it returns zero, so.. */
-
-    fh = fopen (CG_INFO_FILE, "r");
-    if (fh != NULL)
-    {
-        char buf[256];
-
-        while (fgets (buf, sizeof (buf), fh) != NULL)
-        {
-            unsigned char c;
-
-            if (!strstr (buf, "<key>CFBundleShortVersionString</key>")
-                || fgets (buf, sizeof (buf), fh) == NULL)
-            {
-                continue;
-            }
-
-            ptr = strstr (buf, "<string>");
-            if (ptr == NULL)
-                continue;
-
-            ptr += strlen ("<string>");
-
-            /* Now PTR points to "MAJOR.MINOR.MICRO". */
-
-            version = 0;
-
-        again:
-            switch ((c = *ptr++))
-            {
-            case '.':
-                version = version * 1024;
-                goto again;
-
-            case '0': case '1': case '2': case '3': case '4':
-            case '5': case '6': case '7': case '8': case '9':
-                version = ((version & ~0x3ff)
-                          + (version & 0x3ff) * 10 + (c - '0'));
-                goto again;
-            }
-            break;
-        }
-
-        fclose (fh);
-    }
-
-    return version;
-}
-
-static Bool
-test_cg_version (unsigned int major, unsigned int minor, unsigned int micro)
-{
-    unsigned int cg_ver = get_cg_version ();
-
-    unsigned int cg_major = (cg_ver >> 20) & 0x3ff;
-    unsigned int cg_minor = (cg_ver >> 10) & 0x3ff;
-    unsigned int cg_micro =  cg_ver        & 0x3ff;
-
-    if (cg_major > major)
-        return TRUE;
-    else if (cg_major < major)
-        return FALSE;
-
-    /* cg_major == major */
-
-    if (cg_minor > minor)
-        return TRUE;
-    else if (cg_minor < minor)
-        return FALSE;
-
-    /* cg_minor == minor */
-
-    if (cg_micro < micro)
-        return FALSE;
-
-    return TRUE;
-}
-
-Bool
-DRIScreenInit(ScreenPtr pScreen)
-{
-    DRIScreenPrivPtr    pDRIPriv;
-    int                 i;
-
-    pDRIPriv = (DRIScreenPrivPtr) xcalloc(1, sizeof(DRIScreenPrivRec));
-    if (!pDRIPriv) {
-	dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
-        return FALSE;
-    }
-
-    dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, pDRIPriv);
-    pDRIPriv->directRenderingSupport = TRUE;
-    pDRIPriv->nrWindows = 0;
-
-    /* Need recent cg for window access update */
-    if (!test_cg_version (CG_REQUIRED_MAJOR,
-                          CG_REQUIRED_MINOR,
-                          CG_REQUIRED_MICRO))
-    {
-        ErrorF ("[DRI] disabled direct rendering; requires CoreGraphics %d.%d.%d\n",
-                CG_REQUIRED_MAJOR, CG_REQUIRED_MINOR, CG_REQUIRED_MICRO);
-
-        pDRIPriv->directRenderingSupport = FALSE;
-
-        /* Note we don't nuke the dri private, since we need it for
-           managing indirect surfaces. */
-    }
-
-    /* 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) {
-        xfree(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 = REGION_NUM_RECTS(&pWin->clipList);
-        wc.shape_rects = REGION_RECTS(&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 = xalloc(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) {
-	    xfree(pDRIDrawablePriv);
-	    return NULL;
-	}
-	
-	/* allocate the physical surface */
-	err = xp_create_surface(wid, &pDRIDrawablePriv->sid);
-
-	if (err != Success) {
-	    xfree(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);
-	    xfree(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 = xcalloc(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) {
-	    xfree(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 { /* for GLX 1.3, a PBuffer */
-        /* NOT_DONE */
-        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);
-                xfree(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) {
-        if (notify != NULL) {
-            pDRIDrawablePriv->notifiers = x_hook_remove(pDRIDrawablePriv->notifiers,
-                                                        notify, notify_data);
-        }
-        if (--pDRIDrawablePriv->refCount <= 0) {
-            /* This calls back to DRIDrawablePrivDelete
-               which frees the private area */
-            FreeResourceByType(id, DRIDrawablePrivResType, FALSE);
-        }
-    }
-
-    return TRUE;
-}
-
-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) {
-	return DRIFreePixmapImp(pDrawable);
-    }
-
-    if (pDRIDrawablePriv->drawableIndex != -1) {
-        /* release drawable table entry */
-        pDRIPriv->DRIDrawables[pDRIDrawablePriv->drawableIndex] = NULL;
-    }
-
-    if (pDRIDrawablePriv->sid != 0) {
-        xp_destroy_surface(pDRIDrawablePriv->sid);
-        x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(pDRIDrawablePriv->sid));
-    }
-
-    if (pDRIDrawablePriv->notifiers != NULL)
-        x_hook_free(pDRIDrawablePriv->notifiers);
-
-    xfree(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);
-
-    pDRIPriv->wrap.WindowExposures = pScreen->WindowExposures;
-    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 */
-    pDRIPriv->wrap.CopyWindow = pScreen->CopyWindow;
-    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 */
-    pDRIPriv->wrap.ValidateTree = pScreen->ValidateTree;
-    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 */
-        pDRIPriv->wrap.PostValidateTree = pScreen->PostValidateTree;
-        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);
-
-        pDRIPriv->wrap.ClipNotify = pScreen->ClipNotify;
-        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;
-}
-
-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)
-    {
-        pDRIDrawablePriv->sid = 0;
-        x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(id));
-    }
-
-    x_hook_run(pDRIDrawablePriv->notifiers, &arg);
-
-    if (kind == AppleDRISurfaceNotifyDestroyed)
-    {
-        /* Kill off the handle. */
-
-        FreeResourceByType(pDRIDrawablePriv->pDraw->id,
-                           DRIDrawablePrivResType, FALSE);
-    }
-}
-
-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 = xalloc(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) {
-	xfree(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);
-	xfree(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);
-	xfree(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);
-    xfree(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 int DRIScreenPrivKeyIndex;

+static DevPrivateKey DRIScreenPrivKey = &DRIScreenPrivKeyIndex;

+static int DRIWindowPrivKeyIndex;

+static DevPrivateKey DRIWindowPrivKey = &DRIWindowPrivKeyIndex;

+static int DRIPixmapPrivKeyIndex;

+static DevPrivateKey DRIPixmapPrivKey = &DRIPixmapPrivKeyIndex;

+static int DRIPixmapBufferPrivKeyIndex;

+static DevPrivateKey DRIPixmapBufferPrivKey = &DRIPixmapBufferPrivKeyIndex;

+

+static RESTYPE DRIDrawablePrivResType;

+

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

+

+static Bool DRIFreePixmapImp(DrawablePtr pDrawable);

+

+/* FIXME: don't hardcode this? */

+#define CG_INFO_FILE "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/Resources/Info-macos.plist"

+

+/* Corresponds to SU Jaguar Green */

+#define CG_REQUIRED_MAJOR 1

+#define CG_REQUIRED_MINOR 157

+#define CG_REQUIRED_MICRO 11

+

+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;

+

+/* Returns version as major.minor.micro in 10.10.10 fixed form */

+static unsigned int

+get_cg_version (void)

+{

+    static unsigned int version;

+

+    FILE *fh;

+    char *ptr;

+

+    if (version != 0)

+        return version;

+

+    /* I tried CFBundleGetVersion, but it returns zero, so.. */

+

+    fh = fopen (CG_INFO_FILE, "r");

+    if (fh != NULL)

+    {

+        char buf[256];

+

+        while (fgets (buf, sizeof (buf), fh) != NULL)

+        {

+            unsigned char c;

+

+            if (!strstr (buf, "<key>CFBundleShortVersionString</key>")

+                || fgets (buf, sizeof (buf), fh) == NULL)

+            {

+                continue;

+            }

+

+            ptr = strstr (buf, "<string>");

+            if (ptr == NULL)

+                continue;

+

+            ptr += strlen ("<string>");

+

+            /* Now PTR points to "MAJOR.MINOR.MICRO". */

+

+            version = 0;

+

+        again:

+            switch ((c = *ptr++))

+            {

+            case '.':

+                version = version * 1024;

+                goto again;

+

+            case '0': case '1': case '2': case '3': case '4':

+            case '5': case '6': case '7': case '8': case '9':

+                version = ((version & ~0x3ff)

+                          + (version & 0x3ff) * 10 + (c - '0'));

+                goto again;

+            }

+            break;

+        }

+

+        fclose (fh);

+    }

+

+    return version;

+}

+

+static Bool

+test_cg_version (unsigned int major, unsigned int minor, unsigned int micro)

+{

+    unsigned int cg_ver = get_cg_version ();

+

+    unsigned int cg_major = (cg_ver >> 20) & 0x3ff;

+    unsigned int cg_minor = (cg_ver >> 10) & 0x3ff;

+    unsigned int cg_micro =  cg_ver        & 0x3ff;

+

+    if (cg_major > major)

+        return TRUE;

+    else if (cg_major < major)

+        return FALSE;

+

+    /* cg_major == major */

+

+    if (cg_minor > minor)

+        return TRUE;

+    else if (cg_minor < minor)

+        return FALSE;

+

+    /* cg_minor == minor */

+

+    if (cg_micro < micro)

+        return FALSE;

+

+    return TRUE;

+}

+

+Bool

+DRIScreenInit(ScreenPtr pScreen)

+{

+    DRIScreenPrivPtr    pDRIPriv;

+    int                 i;

+

+    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;

+

+    /* Need recent cg for window access update */

+    if (!test_cg_version (CG_REQUIRED_MAJOR,

+                          CG_REQUIRED_MINOR,

+                          CG_REQUIRED_MICRO))

+    {

+        ErrorF ("[DRI] disabled direct rendering; requires CoreGraphics %d.%d.%d\n",

+                CG_REQUIRED_MAJOR, CG_REQUIRED_MINOR, CG_REQUIRED_MICRO);

+

+        pDRIPriv->directRenderingSupport = FALSE;

+

+        /* Note we don't nuke the dri private, since we need it for

+           managing indirect surfaces. */

+    }

+

+    /* 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 = REGION_NUM_RECTS(&pWin->clipList);

+        wc.shape_rects = REGION_RECTS(&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 { /* for GLX 1.3, a PBuffer */

+        /* NOT_DONE */

+        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) {

+        if (notify != NULL) {

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

+                                                        notify, notify_data);

+        }

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

+            /* This calls back to DRIDrawablePrivDelete

+               which frees the private area */

+            FreeResourceByType(id, DRIDrawablePrivResType, FALSE);

+        }

+    }

+

+    return TRUE;

+}

+

+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) {

+	return DRIFreePixmapImp(pDrawable);

+    }

+

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

+        /* release drawable table entry */

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

+    }

+

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

+        xp_destroy_surface(pDRIDrawablePriv->sid);

+        x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(pDRIDrawablePriv->sid));

+    }

+

+    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);

+

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

+    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 */

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

+    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 */

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

+    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 */

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

+        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);

+

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

+        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;

+}

+

+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)

+    {

+        pDRIDrawablePriv->sid = 0;

+        x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(id));

+    }

+

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

+

+    if (kind == AppleDRISurfaceNotifyDestroyed)

+    {

+        /* Kill off the handle. */

+

+        FreeResourceByType(pDRIDrawablePriv->pDraw->id,

+                           DRIDrawablePrivResType, FALSE);

+    }

+}

+

+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);

+

+}