initial state (xorg-server 1.10.2)

1 files changed, 932 insertions, 0 deletions

diff --git a/composite/compext.c b/composite/compext.c
new file mode 100644
index 0000000..fbd36b5
--- /dev/null
+++ b/composite/compext.c
@@ -0,0 +1,932 @@
+/*
+ * Copyright (c) 2006, Oracle and/or its affiliates. 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, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Copyright © 2003 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "compint.h"
+#include "xace.h"
+#include "protocol-versions.h"
+
+static CARD8	CompositeReqCode;
+static DevPrivateKeyRec CompositeClientPrivateKeyRec;
+#define CompositeClientPrivateKey (&CompositeClientPrivateKeyRec)
+RESTYPE		CompositeClientWindowType;
+RESTYPE		CompositeClientSubwindowsType;
+RESTYPE		CompositeClientOverlayType;
+
+typedef struct _CompositeClient {
+    int	    major_version;
+    int	    minor_version;
+} CompositeClientRec, *CompositeClientPtr;
+
+#define GetCompositeClient(pClient) ((CompositeClientPtr) \
+    dixLookupPrivate(&(pClient)->devPrivates, CompositeClientPrivateKey))
+
+static void
+CompositeClientCallback (CallbackListPtr	*list,
+		      pointer		closure,
+		      pointer		data)
+{
+    NewClientInfoRec	*clientinfo = (NewClientInfoRec *) data;
+    ClientPtr		pClient = clientinfo->client;
+    CompositeClientPtr	pCompositeClient = GetCompositeClient (pClient);
+
+    pCompositeClient->major_version = 0;
+    pCompositeClient->minor_version = 0;
+}
+
+static int
+FreeCompositeClientWindow (pointer value, XID ccwid)
+{
+    WindowPtr	pWin = value;
+
+    compFreeClientWindow (pWin, ccwid);
+    return Success;
+}
+
+static int
+FreeCompositeClientSubwindows (pointer value, XID ccwid)
+{
+    WindowPtr	pWin = value;
+
+    compFreeClientSubwindows (pWin, ccwid);
+    return Success;
+}
+
+static int
+FreeCompositeClientOverlay (pointer value, XID ccwid)
+{
+    CompOverlayClientPtr pOc = (CompOverlayClientPtr) value;
+
+    compFreeOverlayClient (pOc);
+    return Success;
+}
+
+static int
+ProcCompositeQueryVersion (ClientPtr client)
+{
+    CompositeClientPtr pCompositeClient = GetCompositeClient (client);
+    xCompositeQueryVersionReply rep;
+    register int n;
+    REQUEST(xCompositeQueryVersionReq);
+
+    REQUEST_SIZE_MATCH(xCompositeQueryVersionReq);
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    if (stuff->majorVersion < SERVER_COMPOSITE_MAJOR_VERSION) {
+	rep.majorVersion = stuff->majorVersion;
+	rep.minorVersion = stuff->minorVersion;
+    } else {
+	rep.majorVersion = SERVER_COMPOSITE_MAJOR_VERSION;
+        rep.minorVersion = SERVER_COMPOSITE_MINOR_VERSION;
+    }
+    pCompositeClient->major_version = rep.majorVersion;
+    pCompositeClient->minor_version = rep.minorVersion;
+    if (client->swapped) {
+    	swaps(&rep.sequenceNumber, n);
+    	swapl(&rep.length, n);
+	swapl(&rep.majorVersion, n);
+	swapl(&rep.minorVersion, n);
+    }
+    WriteToClient(client, sizeof(xCompositeQueryVersionReply), (char *)&rep);
+    return Success;
+}
+
+#define VERIFY_WINDOW(pWindow, wid, client, mode)			\
+    do {								\
+	int err;							\
+	err = dixLookupResourceByType((pointer *) &pWindow, wid,	\
+				      RT_WINDOW, client, mode);		\
+	if (err != Success) {						\
+	    client->errorValue = wid;					\
+	    return err;							\
+	}								\
+    } while (0)
+
+static int
+ProcCompositeRedirectWindow (ClientPtr client)
+{
+    WindowPtr	pWin;
+    REQUEST(xCompositeRedirectWindowReq);
+
+    REQUEST_SIZE_MATCH(xCompositeRedirectWindowReq);
+    VERIFY_WINDOW(pWin, stuff->window, client,
+		  DixSetAttrAccess|DixManageAccess|DixBlendAccess);
+
+    return compRedirectWindow (client, pWin, stuff->update);
+}
+
+static int
+ProcCompositeRedirectSubwindows (ClientPtr client)
+{
+    WindowPtr	pWin;
+    REQUEST(xCompositeRedirectSubwindowsReq);
+
+    REQUEST_SIZE_MATCH(xCompositeRedirectSubwindowsReq);
+    VERIFY_WINDOW(pWin, stuff->window, client,
+		  DixSetAttrAccess|DixManageAccess|DixBlendAccess);
+
+    return compRedirectSubwindows (client, pWin, stuff->update);
+}
+
+static int
+ProcCompositeUnredirectWindow (ClientPtr client)
+{
+    WindowPtr	pWin;
+    REQUEST(xCompositeUnredirectWindowReq);
+
+    REQUEST_SIZE_MATCH(xCompositeUnredirectWindowReq);
+    VERIFY_WINDOW(pWin, stuff->window, client,
+		  DixSetAttrAccess|DixManageAccess|DixBlendAccess);
+
+    return compUnredirectWindow (client, pWin, stuff->update);
+}
+
+static int
+ProcCompositeUnredirectSubwindows (ClientPtr client)
+{
+    WindowPtr	pWin;
+    REQUEST(xCompositeUnredirectSubwindowsReq);
+
+    REQUEST_SIZE_MATCH(xCompositeUnredirectSubwindowsReq);
+    VERIFY_WINDOW(pWin, stuff->window, client,
+		  DixSetAttrAccess|DixManageAccess|DixBlendAccess);
+
+    return compUnredirectSubwindows (client, pWin, stuff->update);
+}
+
+static int
+ProcCompositeCreateRegionFromBorderClip (ClientPtr client)
+{
+    WindowPtr	    pWin;
+    CompWindowPtr   cw;
+    RegionPtr	    pBorderClip, pRegion;
+    REQUEST(xCompositeCreateRegionFromBorderClipReq);
+
+    REQUEST_SIZE_MATCH(xCompositeCreateRegionFromBorderClipReq);
+    VERIFY_WINDOW(pWin, stuff->window, client, DixGetAttrAccess);
+    LEGAL_NEW_RESOURCE (stuff->region, client);
+    
+    cw = GetCompWindow (pWin);
+    if (cw)
+	pBorderClip = &cw->borderClip;
+    else
+	pBorderClip = &pWin->borderClip;
+    pRegion = XFixesRegionCopy (pBorderClip);
+    if (!pRegion)
+	return BadAlloc;
+    RegionTranslate(pRegion, -pWin->drawable.x, -pWin->drawable.y);
+    
+    if (!AddResource (stuff->region, RegionResType, (pointer) pRegion))
+	return BadAlloc;
+
+    return Success;
+}
+
+static int
+ProcCompositeNameWindowPixmap (ClientPtr client)
+{
+    WindowPtr	    pWin;
+    CompWindowPtr   cw;
+    PixmapPtr	    pPixmap;
+    int rc;
+    REQUEST(xCompositeNameWindowPixmapReq);
+
+    REQUEST_SIZE_MATCH(xCompositeNameWindowPixmapReq);
+    VERIFY_WINDOW(pWin, stuff->window, client, DixGetAttrAccess);
+
+    if (!pWin->viewable)
+	return BadMatch;
+
+    LEGAL_NEW_RESOURCE (stuff->pixmap, client);
+    
+    cw = GetCompWindow (pWin);
+    if (!cw)
+	return BadMatch;
+
+    pPixmap = (*pWin->drawable.pScreen->GetWindowPixmap) (pWin);
+    if (!pPixmap)
+	return BadMatch;
+
+    /* security creation/labeling check */
+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pixmap, RT_PIXMAP,
+		  pPixmap, RT_WINDOW, pWin, DixCreateAccess);
+    if (rc != Success)
+	return rc;
+
+    ++pPixmap->refcnt;
+
+    if (!AddResource (stuff->pixmap, RT_PIXMAP, (pointer) pPixmap))
+	return BadAlloc;
+
+    return Success;
+}
+
+
+static int
+ProcCompositeGetOverlayWindow (ClientPtr client)
+{
+    REQUEST(xCompositeGetOverlayWindowReq); 
+    xCompositeGetOverlayWindowReply rep;
+    WindowPtr pWin;
+    ScreenPtr pScreen;
+    CompScreenPtr cs;
+    CompOverlayClientPtr pOc;
+    int rc;
+
+    REQUEST_SIZE_MATCH(xCompositeGetOverlayWindowReq);
+    VERIFY_WINDOW(pWin, stuff->window, client, DixGetAttrAccess);
+    pScreen = pWin->drawable.pScreen;
+
+    /* 
+     * Create an OverlayClient structure to mark this client's
+     * interest in the overlay window
+     */
+    pOc = compCreateOverlayClient(pScreen, client);
+    if (pOc == NULL)
+	return BadAlloc;
+
+    /*
+     * Make sure the overlay window exists
+     */
+    cs = GetCompScreen(pScreen);
+    if (cs->pOverlayWin == NULL)
+	if (!compCreateOverlayWindow(pScreen))
+	{
+	    FreeResource (pOc->resource, RT_NONE);
+	    return BadAlloc;
+	}
+
+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cs->pOverlayWin->drawable.id,
+		  RT_WINDOW, cs->pOverlayWin, RT_NONE, NULL, DixGetAttrAccess);
+    if (rc != Success)
+    {
+	FreeResource (pOc->resource, RT_NONE);
+	return rc;
+    }
+
+    rep.type = X_Reply;
+    rep.sequenceNumber = client->sequence;
+    rep.length = 0;
+    rep.overlayWin = cs->pOverlayWin->drawable.id;
+
+    if (client->swapped)
+    {
+	int n;
+	swaps(&rep.sequenceNumber, n);
+    	swapl(&rep.length, n);
+	swapl(&rep.overlayWin, n);
+    }
+    (void) WriteToClient(client, sz_xCompositeGetOverlayWindowReply, (char *)&rep);
+
+    return Success;
+}
+
+static int
+ProcCompositeReleaseOverlayWindow (ClientPtr client)
+{
+    REQUEST(xCompositeReleaseOverlayWindowReq); 
+    WindowPtr pWin;
+    ScreenPtr pScreen;
+    CompOverlayClientPtr pOc;
+
+    REQUEST_SIZE_MATCH(xCompositeReleaseOverlayWindowReq);
+    VERIFY_WINDOW(pWin, stuff->window, client, DixGetAttrAccess);
+    pScreen = pWin->drawable.pScreen;
+
+    /* 
+     * Has client queried a reference to the overlay window
+     * on this screen? If not, generate an error.
+     */
+    pOc = compFindOverlayClient (pWin->drawable.pScreen, client);
+    if (pOc == NULL)
+	return BadMatch;
+
+    /* The delete function will free the client structure */
+    FreeResource (pOc->resource, RT_NONE);
+
+    return Success;
+}
+
+static int (*ProcCompositeVector[CompositeNumberRequests])(ClientPtr) = {
+    ProcCompositeQueryVersion,
+    ProcCompositeRedirectWindow,
+    ProcCompositeRedirectSubwindows,
+    ProcCompositeUnredirectWindow,
+    ProcCompositeUnredirectSubwindows,
+    ProcCompositeCreateRegionFromBorderClip,
+    ProcCompositeNameWindowPixmap,
+    ProcCompositeGetOverlayWindow,
+    ProcCompositeReleaseOverlayWindow,
+};
+
+static int
+ProcCompositeDispatch (ClientPtr client)
+{
+    REQUEST(xReq);
+    
+    if (stuff->data < CompositeNumberRequests)
+	return (*ProcCompositeVector[stuff->data]) (client);
+    else
+	return BadRequest;
+}
+
+static int
+SProcCompositeQueryVersion (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeQueryVersionReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeQueryVersionReq);
+    swapl(&stuff->majorVersion, n);
+    swapl(&stuff->minorVersion, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeRedirectWindow (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeRedirectWindowReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeRedirectWindowReq);
+    swapl (&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeRedirectSubwindows (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeRedirectSubwindowsReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeRedirectSubwindowsReq);
+    swapl (&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeUnredirectWindow (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeUnredirectWindowReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeUnredirectWindowReq);
+    swapl (&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeUnredirectSubwindows (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeUnredirectSubwindowsReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeUnredirectSubwindowsReq);
+    swapl (&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeCreateRegionFromBorderClip (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeCreateRegionFromBorderClipReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeCreateRegionFromBorderClipReq);
+    swapl (&stuff->region, n);
+    swapl (&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeNameWindowPixmap (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeNameWindowPixmapReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeNameWindowPixmapReq);
+    swapl (&stuff->window, n);
+    swapl (&stuff->pixmap, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeGetOverlayWindow (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeGetOverlayWindowReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeGetOverlayWindowReq);
+    swapl(&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int
+SProcCompositeReleaseOverlayWindow (ClientPtr client)
+{
+    int n;
+    REQUEST(xCompositeReleaseOverlayWindowReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xCompositeReleaseOverlayWindowReq);
+    swapl(&stuff->window, n);
+    return (*ProcCompositeVector[stuff->compositeReqType]) (client);
+}
+
+static int (*SProcCompositeVector[CompositeNumberRequests])(ClientPtr) = {
+    SProcCompositeQueryVersion,
+    SProcCompositeRedirectWindow,
+    SProcCompositeRedirectSubwindows,
+    SProcCompositeUnredirectWindow,
+    SProcCompositeUnredirectSubwindows,
+    SProcCompositeCreateRegionFromBorderClip,
+    SProcCompositeNameWindowPixmap,
+    SProcCompositeGetOverlayWindow,
+    SProcCompositeReleaseOverlayWindow,
+};
+
+static int
+SProcCompositeDispatch (ClientPtr client)
+{
+    REQUEST(xReq);
+    
+    if (stuff->data < CompositeNumberRequests)
+	return (*SProcCompositeVector[stuff->data]) (client);
+    else
+	return BadRequest;
+}
+
+void
+CompositeExtensionInit (void)
+{
+    ExtensionEntry  *extEntry;
+    int		    s;
+
+    /* Assume initialization is going to fail */
+    noCompositeExtension = TRUE;
+
+    for (s = 0; s < screenInfo.numScreens; s++) {
+	ScreenPtr pScreen = screenInfo.screens[s];
+	VisualPtr vis;
+
+	/* Composite on 8bpp pseudocolor root windows appears to fail, so
+	 * just disable it on anything pseudocolor for safety.
+	 */
+	for (vis = pScreen->visuals; vis->vid != pScreen->rootVisual; vis++)
+	    ;
+	if ((vis->class | DynamicClass) == PseudoColor)
+	    return;
+
+	/* Ensure that Render is initialized, which is required for automatic
+	 * compositing.
+	 */
+	if (GetPictureScreenIfSet(pScreen) == NULL)
+	    return;
+    }
+
+    CompositeClientWindowType = CreateNewResourceType
+	(FreeCompositeClientWindow, "CompositeClientWindow");
+    if (!CompositeClientWindowType)
+	return;
+
+    CompositeClientSubwindowsType = CreateNewResourceType
+	(FreeCompositeClientSubwindows, "CompositeClientSubwindows");
+    if (!CompositeClientSubwindowsType)
+	return;
+
+    CompositeClientOverlayType = CreateNewResourceType
+	(FreeCompositeClientOverlay, "CompositeClientOverlay");
+    if (!CompositeClientOverlayType)
+	return;
+
+    if (!dixRegisterPrivateKey(&CompositeClientPrivateKeyRec, PRIVATE_CLIENT,
+			       sizeof(CompositeClientRec)))
+	return;
+
+    if (!AddCallback (&ClientStateCallback, CompositeClientCallback, 0))
+	return;
+
+    for (s = 0; s < screenInfo.numScreens; s++)
+	if (!compScreenInit (screenInfo.screens[s]))
+	    return;
+
+    extEntry = AddExtension (COMPOSITE_NAME, 0, 0,
+			     ProcCompositeDispatch, SProcCompositeDispatch,
+			     NULL, StandardMinorOpcode);
+    if (!extEntry)
+	return;
+    CompositeReqCode = (CARD8) extEntry->base;
+
+    miRegisterRedirectBorderClipProc (compSetRedirectBorderClip,
+				      compGetRedirectBorderClip);
+
+    /* Initialization succeeded */
+    noCompositeExtension = FALSE;
+}
+
+#ifdef PANORAMIX
+#include "panoramiXsrv.h"
+
+int (*PanoramiXSaveCompositeVector[CompositeNumberRequests]) (ClientPtr);
+
+static int
+PanoramiXCompositeRedirectWindow (ClientPtr client)
+{
+    PanoramiXRes *win;
+    int rc = 0, j;
+    REQUEST(xCompositeRedirectWindowReq);
+
+    REQUEST_SIZE_MATCH(xCompositeRedirectWindowReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    FOR_NSCREENS_FORWARD(j) {
+	stuff->window = win->info[j].id;
+	rc = (*PanoramiXSaveCompositeVector[stuff->compositeReqType]) (client);
+	if (rc != Success) break;
+    }
+
+    return rc;
+}
+
+static int
+PanoramiXCompositeRedirectSubwindows (ClientPtr client)
+{
+    PanoramiXRes *win;
+    int rc = 0, j;
+    REQUEST(xCompositeRedirectSubwindowsReq);
+
+    REQUEST_SIZE_MATCH(xCompositeRedirectSubwindowsReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    FOR_NSCREENS_FORWARD(j) {
+	stuff->window = win->info[j].id;
+	rc = (*PanoramiXSaveCompositeVector[stuff->compositeReqType]) (client);
+	if (rc != Success) break;
+    }
+
+    return rc;
+}
+
+static int
+PanoramiXCompositeUnredirectWindow (ClientPtr client)
+{
+    PanoramiXRes *win;
+    int rc = 0, j;
+    REQUEST(xCompositeUnredirectWindowReq);
+
+    REQUEST_SIZE_MATCH(xCompositeUnredirectWindowReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    FOR_NSCREENS_FORWARD(j) {
+	stuff->window = win->info[j].id;
+	rc = (*PanoramiXSaveCompositeVector[stuff->compositeReqType]) (client);
+	if (rc != Success) break;
+    }
+
+    return rc;
+}
+
+static int
+PanoramiXCompositeUnredirectSubwindows (ClientPtr client)
+{
+    PanoramiXRes *win;
+    int rc = 0, j;
+    REQUEST(xCompositeUnredirectSubwindowsReq);
+
+    REQUEST_SIZE_MATCH(xCompositeUnredirectSubwindowsReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    FOR_NSCREENS_FORWARD(j) {
+	stuff->window = win->info[j].id;
+	rc = (*PanoramiXSaveCompositeVector[stuff->compositeReqType]) (client);
+	if (rc != Success) break;
+    }
+
+    return rc;
+}
+
+static int
+PanoramiXCompositeNameWindowPixmap (ClientPtr client)
+{
+    WindowPtr	    pWin;
+    CompWindowPtr   cw;
+    PixmapPtr	    pPixmap;
+    int rc;
+    PanoramiXRes *win, *newPix;
+    int i;
+    REQUEST(xCompositeNameWindowPixmapReq);
+
+    REQUEST_SIZE_MATCH(xCompositeNameWindowPixmapReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    LEGAL_NEW_RESOURCE (stuff->pixmap, client);
+
+    if(!(newPix = malloc(sizeof(PanoramiXRes))))
+	return BadAlloc;
+
+    newPix->type = XRT_PIXMAP;
+    newPix->u.pix.shared = FALSE;
+    newPix->info[0].id = stuff->pixmap;
+
+    for (i = 1; i < PanoramiXNumScreens; i++)
+	newPix->info[i].id = FakeClientID (client->index);
+
+    FOR_NSCREENS(i) {
+	rc = dixLookupResourceByType ((void **) &pWin, win->info[i].id,
+				      RT_WINDOW, client, DixGetAttrAccess);
+	if (rc != Success)
+	{
+	    client->errorValue = stuff->window;
+	    free (newPix);
+	    return rc;
+	}
+
+	if (!pWin->viewable)
+	{
+	    free (newPix);
+	    return BadMatch;
+	}
+
+	cw = GetCompWindow (pWin);
+	if (!cw)
+	{
+	    free (newPix);
+	    return BadMatch;
+	}
+
+	pPixmap = (*pWin->drawable.pScreen->GetWindowPixmap) (pWin);
+	if (!pPixmap)
+	{
+	    free (newPix);
+	    return BadMatch;
+	}
+
+	if (!AddResource (newPix->info[i].id, RT_PIXMAP,
+			  (pointer) pPixmap))
+	    return BadAlloc;
+
+	++pPixmap->refcnt;
+    }
+
+    if (!AddResource (stuff->pixmap, XRT_PIXMAP, (pointer) newPix))
+	return BadAlloc;
+
+    return Success;
+}
+
+
+static int
+PanoramiXCompositeGetOverlayWindow (ClientPtr client)
+{
+    REQUEST(xCompositeGetOverlayWindowReq);
+    xCompositeGetOverlayWindowReply rep;
+    WindowPtr pWin;
+    ScreenPtr pScreen;
+    CompScreenPtr cs;
+    CompOverlayClientPtr pOc;
+    int rc;
+    PanoramiXRes *win, *overlayWin = NULL;
+    int i;
+
+    REQUEST_SIZE_MATCH(xCompositeGetOverlayWindowReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    cs = GetCompScreen(screenInfo.screens[0]);
+    if (!cs->pOverlayWin)
+    {
+	if(!(overlayWin = malloc(sizeof(PanoramiXRes))))
+	    return BadAlloc;
+
+	overlayWin->type = XRT_WINDOW;
+	overlayWin->u.win.root = FALSE;
+    }
+
+    FOR_NSCREENS_BACKWARD(i) {
+	rc = dixLookupResourceByType((pointer *)&pWin, win->info[i].id,
+				     RT_WINDOW, client, DixGetAttrAccess);
+	if (rc != Success)
+	{
+	    client->errorValue = stuff->window;
+	    return rc;
+	}
+	pScreen = pWin->drawable.pScreen;
+
+	/*
+	 * Create an OverlayClient structure to mark this client's
+	 * interest in the overlay window
+	 */
+	pOc = compCreateOverlayClient(pScreen, client);
+	if (pOc == NULL)
+	    return BadAlloc;
+
+	/*
+	 * Make sure the overlay window exists
+	 */
+	cs = GetCompScreen(pScreen);
+	if (cs->pOverlayWin == NULL)
+	    if (!compCreateOverlayWindow(pScreen))
+	    {
+		FreeResource (pOc->resource, RT_NONE);
+		return BadAlloc;
+	    }
+
+	rc = XaceHook(XACE_RESOURCE_ACCESS, client,
+		      cs->pOverlayWin->drawable.id,
+		      RT_WINDOW, cs->pOverlayWin, RT_NONE, NULL,
+		      DixGetAttrAccess);
+	if (rc != Success)
+	{
+	    FreeResource (pOc->resource, RT_NONE);
+	    return rc;
+	}
+    }
+
+    if (overlayWin)
+    {
+	FOR_NSCREENS(i) {
+	    cs = GetCompScreen(screenInfo.screens[i]);
+	    overlayWin->info[i].id = cs->pOverlayWin->drawable.id;
+	}
+
+	AddResource(overlayWin->info[0].id, XRT_WINDOW, overlayWin);
+    }
+
+    cs = GetCompScreen(screenInfo.screens[0]);
+
+    rep.type = X_Reply;
+    rep.sequenceNumber = client->sequence;
+    rep.length = 0;
+    rep.overlayWin = cs->pOverlayWin->drawable.id;
+
+    if (client->swapped)
+    {
+	int n;
+	swaps(&rep.sequenceNumber, n);
+	swapl(&rep.length, n);
+	swapl(&rep.overlayWin, n);
+    }
+    (void) WriteToClient(client, sz_xCompositeGetOverlayWindowReply, (char *)&rep);
+
+    return Success;
+}
+
+static int
+PanoramiXCompositeReleaseOverlayWindow (ClientPtr client)
+{
+    REQUEST(xCompositeReleaseOverlayWindowReq);
+    WindowPtr pWin;
+    ScreenPtr pScreen;
+    CompOverlayClientPtr pOc;
+    PanoramiXRes *win;
+    int i, rc;
+
+    REQUEST_SIZE_MATCH(xCompositeReleaseOverlayWindowReq);
+
+    if ((rc = dixLookupResourceByType((void **)&win, stuff->window, XRT_WINDOW,
+				      client, DixUnknownAccess))) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    FOR_NSCREENS_BACKWARD(i) {
+	if ((rc = dixLookupResourceByType((void **)&pWin, win->info[i].id,
+					  XRT_WINDOW, client,
+					  DixUnknownAccess))) {
+	    client->errorValue = stuff->window;
+	    return rc;
+	}
+	pScreen = pWin->drawable.pScreen;
+
+	/*
+	 * Has client queried a reference to the overlay window
+	 * on this screen? If not, generate an error.
+	 */
+	pOc = compFindOverlayClient (pWin->drawable.pScreen, client);
+	if (pOc == NULL)
+	    return BadMatch;
+
+	/* The delete function will free the client structure */
+	FreeResource (pOc->resource, RT_NONE);
+    }
+
+    return Success;
+}
+
+void
+PanoramiXCompositeInit (void)
+{
+    int i;
+
+    for (i = 0; i < CompositeNumberRequests; i++)
+	PanoramiXSaveCompositeVector[i] = ProcCompositeVector[i];
+    /*
+     * Stuff in Xinerama aware request processing hooks
+     */
+    ProcCompositeVector[X_CompositeRedirectWindow] =
+	PanoramiXCompositeRedirectWindow;
+    ProcCompositeVector[X_CompositeRedirectSubwindows] =
+	PanoramiXCompositeRedirectSubwindows;
+    ProcCompositeVector[X_CompositeUnredirectWindow] =
+	PanoramiXCompositeUnredirectWindow;
+    ProcCompositeVector[X_CompositeUnredirectSubwindows] =
+	PanoramiXCompositeUnredirectSubwindows;
+    ProcCompositeVector[X_CompositeNameWindowPixmap] =
+	PanoramiXCompositeNameWindowPixmap;
+    ProcCompositeVector[X_CompositeGetOverlayWindow] =
+	PanoramiXCompositeGetOverlayWindow;
+    ProcCompositeVector[X_CompositeReleaseOverlayWindow] =
+	PanoramiXCompositeReleaseOverlayWindow;
+}
+
+void
+PanoramiXCompositeReset (void)
+{
+    int i;
+
+    for (i = 0; i < CompositeNumberRequests; i++)
+	ProcCompositeVector[i] = PanoramiXSaveCompositeVector[i];
+}
+
+#endif