160 lines
		
	
	
		
			5.0 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			160 lines
		
	
	
		
			5.0 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright © 2006 Sun Microsystems
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|  *
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|  * Permission to use, copy, modify, distribute, and sell this software and its
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|  * documentation for any purpose is hereby granted without fee, provided that
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|  * the above copyright notice appear in all copies and that both that
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|  * copyright notice and this permission notice appear in supporting
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|  * documentation, and that the name of Sun Microsystems not be used in
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|  * advertising or publicity pertaining to distribution of the software without
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|  * specific, written prior permission.  Sun Microsystems makes no
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|  * representations about the suitability of this software for any purpose.  It
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|  * is provided "as is" without express or implied warranty.
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|  *
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|  * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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|  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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|  * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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|  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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|  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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|  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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|  * PERFORMANCE OF THIS SOFTWARE.
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|  *
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|  * Copyright © 2003 Keith Packard
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|  *
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|  * Permission to use, copy, modify, distribute, and sell this software and its
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|  * documentation for any purpose is hereby granted without fee, provided that
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|  * the above copyright notice appear in all copies and that both that
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|  * copyright notice and this permission notice appear in supporting
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|  * documentation, and that the name of Keith Packard not be used in
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|  * advertising or publicity pertaining to distribution of the software without
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|  * specific, written prior permission.  Keith Packard makes no
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|  * representations about the suitability of this software for any purpose.  It
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|  * is provided "as is" without express or implied warranty.
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|  *
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|  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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|  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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|  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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|  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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|  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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|  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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|  * PERFORMANCE OF THIS SOFTWARE.
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|  */
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| 
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| #ifdef HAVE_DIX_CONFIG_H
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| #include <dix-config.h>
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| #endif
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| 
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| #include "compint.h"
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| #include "xace.h"
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| 
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| /* 
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|  * Delete the given overlay client list element from its screen list.
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|  */
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| void
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| compFreeOverlayClient (CompOverlayClientPtr pOcToDel)
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| {
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|     ScreenPtr		    pScreen = pOcToDel->pScreen;
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|     CompScreenPtr	    cs = GetCompScreen (pScreen);
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|     CompOverlayClientPtr    *pPrev, pOc;
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| 
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|     for (pPrev = &cs->pOverlayClients; (pOc = *pPrev); pPrev = &pOc->pNext)
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|     {
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| 	if (pOc == pOcToDel) {
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| 	    *pPrev = pOc->pNext;
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| 	    xfree (pOc);
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| 	    break;
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| 	}
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|     }
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|     
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|     /* Destroy overlay window when there are no more clients using it */
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|     if (cs->pOverlayClients == NULL)
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| 	compDestroyOverlayWindow (pScreen);
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| }
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| 
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| /*
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|  * Return the client's first overlay client rec from the given screen
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|  */
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| CompOverlayClientPtr
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| compFindOverlayClient (ScreenPtr pScreen, ClientPtr pClient)
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| {
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|     CompScreenPtr	    cs = GetCompScreen(pScreen);
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|     CompOverlayClientPtr    pOc;
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| 
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|     for (pOc = cs->pOverlayClients; pOc != NULL; pOc = pOc->pNext)
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| 	if (pOc->pClient == pClient)
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| 	    return pOc;
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| 
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|     return NULL;           
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| }
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| 
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| /*
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|  * Create an overlay client object for the given client
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|  */
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| CompOverlayClientPtr
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| compCreateOverlayClient (ScreenPtr pScreen, ClientPtr pClient)
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| {
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|     CompScreenPtr    cs = GetCompScreen(pScreen);
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|     CompOverlayClientPtr pOc;
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| 
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|     pOc = (CompOverlayClientPtr) xalloc(sizeof(CompOverlayClientRec));
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|     if (pOc == NULL)
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| 	return NULL;
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| 
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|     pOc->pClient = pClient;
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|     pOc->pScreen = pScreen;
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|     pOc->resource = FakeClientID(pClient->index);
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|     pOc->pNext = cs->pOverlayClients;
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|     cs->pOverlayClients = pOc;
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| 
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|     /* 
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|      * Create a resource for this element so it can be deleted
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|      * when the client goes away.
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|      */
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|     if (!AddResource (pOc->resource, CompositeClientOverlayType, (pointer) pOc))
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| 	return NULL;
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| 
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|     return pOc;
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| }
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| 
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| /*
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|  * Create the overlay window and map it
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|  */
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| Bool
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| compCreateOverlayWindow (ScreenPtr pScreen)
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| {
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|     CompScreenPtr   cs = GetCompScreen(pScreen);
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|     WindowPtr	    pRoot = WindowTable[pScreen->myNum];
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|     WindowPtr	    pWin;
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|     XID		    overrideRedirect = TRUE;
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|     int		    result;
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| 
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|     pWin = cs->pOverlayWin = 
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| 	CreateWindow (cs->overlayWid, pRoot,
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| 		      0, 0, pScreen->width, pScreen->height, 0, 
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| 		      InputOutput, CWOverrideRedirect, &overrideRedirect,
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| 		      pRoot->drawable.depth, 
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| 		      serverClient, pScreen->rootVisual, &result);
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|     if (pWin == NULL)
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| 	return FALSE;
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| 
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|     if (!AddResource(pWin->drawable.id, RT_WINDOW, (pointer)pWin))
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| 	return FALSE;
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| 
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|     MapWindow(pWin, serverClient);
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| 
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|     return TRUE;
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| }
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| 
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| /*
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|  * Destroy the overlay window
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|  */
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| void
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| compDestroyOverlayWindow (ScreenPtr pScreen)
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| {
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|     CompScreenPtr cs = GetCompScreen(pScreen);
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| 
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|     cs->pOverlayWin = NullWindow;
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|     FreeResource (cs->overlayWid, RT_NONE);
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| }
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| 
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