755 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			755 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright © 2002 Keith Packard
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|  * Copyright 2013 Red Hat, Inc.
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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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| #include <dix-config.h>
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| 
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| #include "dix/dix_priv.h"
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| #include "os/client_priv.h"
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| 
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| #include "damageextint.h"
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| #include "damagestr.h"
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| #include "protocol-versions.h"
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| #include "extinit_priv.h"
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| #include "dixstruct_priv.h"
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| 
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| #ifdef XINERAMA
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| #include "panoramiX.h"
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| #include "panoramiXsrv.h"
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| 
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| typedef struct {
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|     DamageExtPtr ext;
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|     DamagePtr damage[MAXSCREENS];
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| } PanoramiXDamageRes;
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| 
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| static RESTYPE XRT_DAMAGE;
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| static int (*PanoramiXSaveDamageCreate) (ClientPtr);
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| 
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| #endif /* XINERAMA */
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| 
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| static unsigned char DamageReqCode;
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| static int DamageEventBase;
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| static RESTYPE DamageExtType;
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| 
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| static DevPrivateKeyRec DamageClientPrivateKeyRec;
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| 
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| #define DamageClientPrivateKey (&DamageClientPrivateKeyRec)
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| 
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| Bool noDamageExtension = FALSE;
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| 
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| static void
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| DamageNoteCritical(ClientPtr pClient)
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| {
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|     DamageClientPtr pDamageClient = GetDamageClient(pClient);
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| 
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|     /* Composite extension marks clients with manual Subwindows as critical */
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|     if (pDamageClient->critical > 0) {
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|         SetCriticalOutputPending();
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|         pClient->smart_priority = SMART_MAX_PRIORITY;
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|     }
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| }
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| 
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| static void
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| damageGetGeometry(DrawablePtr draw, int *x, int *y, int *w, int *h)
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| {
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| #ifdef XINERAMA
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|     if (!noPanoramiXExtension && draw->type == DRAWABLE_WINDOW) {
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|         WindowPtr win = (WindowPtr)draw;
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| 
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|         if (!win->parent) {
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|             *x = screenInfo.x;
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|             *y = screenInfo.y;
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|             *w = screenInfo.width;
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|             *h = screenInfo.height;
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|             return;
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|         }
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|     }
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| #endif /* XINERAMA */
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| 
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|     *x = draw->x;
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|     *y = draw->y;
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|     *w = draw->width;
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|     *h = draw->height;
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| }
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| 
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| static void
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| DamageExtNotify(DamageExtPtr pDamageExt, BoxPtr pBoxes, int nBoxes)
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| {
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|     ClientPtr pClient = pDamageExt->pClient;
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|     DrawablePtr pDrawable = pDamageExt->pDrawable;
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|     xDamageNotifyEvent ev;
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|     int i, x, y, w, h;
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| 
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|     damageGetGeometry(pDrawable, &x, &y, &w, &h);
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| 
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|     UpdateCurrentTimeIf();
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|     ev = (xDamageNotifyEvent) {
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|         .type = DamageEventBase + XDamageNotify,
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|         .level = pDamageExt->level,
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|         .drawable = pDamageExt->drawable,
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|         .damage = pDamageExt->id,
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|         .timestamp = currentTime.milliseconds,
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|         .geometry.x = x,
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|         .geometry.y = y,
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|         .geometry.width = w,
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|         .geometry.height = h
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|     };
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|     if (pBoxes) {
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|         for (i = 0; i < nBoxes; i++) {
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|             ev.level = pDamageExt->level;
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|             if (i < nBoxes - 1)
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|                 ev.level |= DamageNotifyMore;
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|             ev.area.x = pBoxes[i].x1;
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|             ev.area.y = pBoxes[i].y1;
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|             ev.area.width = pBoxes[i].x2 - pBoxes[i].x1;
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|             ev.area.height = pBoxes[i].y2 - pBoxes[i].y1;
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|             WriteEventsToClient(pClient, 1, (xEvent *) &ev);
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|         }
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|     }
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|     else {
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|         ev.area.x = 0;
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|         ev.area.y = 0;
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|         ev.area.width = w;
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|         ev.area.height = h;
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|         WriteEventsToClient(pClient, 1, (xEvent *) &ev);
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|     }
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| 
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|     DamageNoteCritical(pClient);
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| }
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| 
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| static void
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| DamageExtReport(DamagePtr pDamage, RegionPtr pRegion, void *closure)
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| {
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|     DamageExtPtr pDamageExt = closure;
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| 
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|     switch (pDamageExt->level) {
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|     case DamageReportRawRegion:
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|     case DamageReportDeltaRegion:
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|         DamageExtNotify(pDamageExt, RegionRects(pRegion),
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|                         RegionNumRects(pRegion));
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|         break;
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|     case DamageReportBoundingBox:
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|         DamageExtNotify(pDamageExt, RegionExtents(pRegion), 1);
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|         break;
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|     case DamageReportNonEmpty:
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|         DamageExtNotify(pDamageExt, NullBox, 0);
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|         break;
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|     case DamageReportNone:
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|         break;
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|     }
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| }
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| 
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| static void
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| DamageExtDestroy(DamagePtr pDamage, void *closure)
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| {
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|     DamageExtPtr pDamageExt = closure;
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| 
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|     pDamageExt->pDamage = 0;
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|     if (pDamageExt->id)
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|         FreeResource(pDamageExt->id, X11_RESTYPE_NONE);
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| }
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| 
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| void
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| DamageExtSetCritical(ClientPtr pClient, Bool critical)
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| {
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|     DamageClientPtr pDamageClient = GetDamageClient(pClient);
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| 
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|     if (pDamageClient)
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|         pDamageClient->critical += critical ? 1 : -1;
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| }
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| 
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| static int
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| ProcDamageQueryVersion(ClientPtr client)
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| {
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|     DamageClientPtr pDamageClient = GetDamageClient(client);
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|     xDamageQueryVersionReply rep = {
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|         .type = X_Reply,
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|         .sequenceNumber = client->sequence,
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|         .length = 0
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|     };
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| 
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|     REQUEST(xDamageQueryVersionReq);
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| 
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|     REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
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| 
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|     if (stuff->majorVersion < SERVER_DAMAGE_MAJOR_VERSION) {
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|         rep.majorVersion = stuff->majorVersion;
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|         rep.minorVersion = stuff->minorVersion;
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|     }
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|     else {
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|         rep.majorVersion = SERVER_DAMAGE_MAJOR_VERSION;
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|         if (stuff->majorVersion == SERVER_DAMAGE_MAJOR_VERSION &&
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|             stuff->minorVersion < SERVER_DAMAGE_MINOR_VERSION)
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|             rep.minorVersion = stuff->minorVersion;
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|         else
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|             rep.minorVersion = SERVER_DAMAGE_MINOR_VERSION;
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|     }
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|     pDamageClient->major_version = rep.majorVersion;
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|     pDamageClient->minor_version = rep.minorVersion;
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|     if (client->swapped) {
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|         swaps(&rep.sequenceNumber);
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|         swapl(&rep.length);
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|         swapl(&rep.majorVersion);
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|         swapl(&rep.minorVersion);
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|     }
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|     WriteToClient(client, sizeof(xDamageQueryVersionReply), &rep);
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|     return Success;
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| }
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| 
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| static void
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| DamageExtRegister(DrawablePtr pDrawable, DamagePtr pDamage, Bool report)
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| {
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|     DamageSetReportAfterOp(pDamage, TRUE);
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|     DamageRegister(pDrawable, pDamage);
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| 
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|     if (report) {
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|         RegionPtr pRegion = &((WindowPtr) pDrawable)->borderClip;
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|         RegionTranslate(pRegion, -pDrawable->x, -pDrawable->y);
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|         DamageReportDamage(pDamage, pRegion);
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|         RegionTranslate(pRegion, pDrawable->x, pDrawable->y);
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|     }
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| }
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| 
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| static DamageExtPtr
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| DamageExtCreate(DrawablePtr pDrawable, DamageReportLevel level,
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|                 ClientPtr client, XID id, XID drawable)
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| {
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|     DamageExtPtr pDamageExt = calloc(1, sizeof(DamageExtRec));
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|     if (!pDamageExt)
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|         return NULL;
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| 
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|     pDamageExt->id = id;
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|     pDamageExt->drawable = drawable;
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|     pDamageExt->pDrawable = pDrawable;
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|     pDamageExt->level = level;
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|     pDamageExt->pClient = client;
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|     pDamageExt->pDamage = DamageCreate(DamageExtReport, DamageExtDestroy, level,
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|                                        FALSE, pDrawable->pScreen, pDamageExt);
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|     if (!pDamageExt->pDamage) {
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|         free(pDamageExt);
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|         return NULL;
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|     }
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| 
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|     if (!AddResource(id, DamageExtType, (void *) pDamageExt))
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|         return NULL;
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| 
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|     DamageExtRegister(pDrawable, pDamageExt->pDamage,
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|                       pDrawable->type == DRAWABLE_WINDOW);
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| 
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|     return pDamageExt;
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| }
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| 
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| static DamageExtPtr
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| doDamageCreate(ClientPtr client, int *rc)
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| {
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|     DrawablePtr pDrawable;
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|     DamageExtPtr pDamageExt;
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|     DamageReportLevel level;
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| 
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|     REQUEST(xDamageCreateReq);
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| 
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|     *rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
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|                             DixGetAttrAccess | DixReadAccess);
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|     if (*rc != Success)
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|         return NULL;
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| 
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|     switch (stuff->level) {
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|     case XDamageReportRawRectangles:
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|         level = DamageReportRawRegion;
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|         break;
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|     case XDamageReportDeltaRectangles:
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|         level = DamageReportDeltaRegion;
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|         break;
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|     case XDamageReportBoundingBox:
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|         level = DamageReportBoundingBox;
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|         break;
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|     case XDamageReportNonEmpty:
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|         level = DamageReportNonEmpty;
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|         break;
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|     default:
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|         client->errorValue = stuff->level;
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|         *rc = BadValue;
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|         return NULL;
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|     }
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| 
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|     pDamageExt = DamageExtCreate(pDrawable, level, client, stuff->damage,
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|                                  stuff->drawable);
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|     if (!pDamageExt)
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|         *rc = BadAlloc;
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| 
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|     return pDamageExt;
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| }
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| 
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| static int
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| ProcDamageCreate(ClientPtr client)
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| {
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|     int rc;
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|     REQUEST(xDamageCreateReq);
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|     REQUEST_SIZE_MATCH(xDamageCreateReq);
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|     LEGAL_NEW_RESOURCE(stuff->damage, client);
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|     doDamageCreate(client, &rc);
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|     return rc;
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| }
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| 
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| static int
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| ProcDamageDestroy(ClientPtr client)
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| {
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|     REQUEST(xDamageDestroyReq);
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|     DamageExtPtr pDamageExt;
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| 
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|     REQUEST_SIZE_MATCH(xDamageDestroyReq);
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|     VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
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|     FreeResource(stuff->damage, X11_RESTYPE_NONE);
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|     return Success;
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| }
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| 
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| #ifdef XINERAMA
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| static RegionPtr
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| DamageExtSubtractWindowClip(DamageExtPtr pDamageExt)
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| {
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|     WindowPtr win = (WindowPtr)pDamageExt->pDrawable;
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|     PanoramiXRes *res = NULL;
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|     RegionPtr ret;
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|     int i;
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| 
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|     if (!win->parent)
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|         return &PanoramiXScreenRegion;
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| 
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|     dixLookupResourceByType((void **)&res, win->drawable.id, XRT_WINDOW,
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|                             serverClient, DixReadAccess);
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|     if (!res)
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|         return NULL;
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| 
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|     ret = RegionCreate(NULL, 0);
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|     if (!ret)
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|         return NULL;
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| 
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|     FOR_NSCREENS_FORWARD(i) {
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|         ScreenPtr screen;
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|         if (Success != dixLookupWindow(&win, res->info[i].id, serverClient,
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|                                        DixReadAccess))
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|             goto out;
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| 
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|         screen = win->drawable.pScreen;
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| 
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|         RegionTranslate(ret, -screen->x, -screen->y);
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|         if (!RegionUnion(ret, ret, &win->borderClip))
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|             goto out;
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|         RegionTranslate(ret, screen->x, screen->y);
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|     }
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| 
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|     return ret;
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| 
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| out:
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|     RegionDestroy(ret);
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|     return NULL;
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| }
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| 
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| static void
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| DamageExtFreeWindowClip(RegionPtr reg)
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| {
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|     if (reg != &PanoramiXScreenRegion)
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|         RegionDestroy(reg);
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| }
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| #endif /* XINERAMA */
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| 
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| /*
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|  * DamageSubtract intersects with borderClip, so we must reconstruct the
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|  * protocol's perspective of same...
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|  */
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| static Bool
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| DamageExtSubtract(DamageExtPtr pDamageExt, const RegionPtr pRegion)
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| {
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|     DamagePtr pDamage = pDamageExt->pDamage;
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| 
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| #ifdef XINERAMA
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|     if (!noPanoramiXExtension) {
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|         RegionPtr damage = DamageRegion(pDamage);
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|         RegionSubtract(damage, damage, pRegion);
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| 
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|         if (pDamageExt->pDrawable->type == DRAWABLE_WINDOW) {
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|             DrawablePtr pDraw = pDamageExt->pDrawable;
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|             RegionPtr clip = DamageExtSubtractWindowClip(pDamageExt);
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|             if (clip) {
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|                 RegionTranslate(clip, -pDraw->x, -pDraw->y);
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|                 RegionIntersect(damage, damage, clip);
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|                 RegionTranslate(clip, pDraw->x, pDraw->y);
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|                 DamageExtFreeWindowClip(clip);
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|             }
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|         }
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| 
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|         return RegionNotEmpty(damage);
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|     }
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| #endif /* XINERAMA */
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| 
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|     return DamageSubtract(pDamage, pRegion);
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| }
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| 
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| static int
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| ProcDamageSubtract(ClientPtr client)
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| {
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|     REQUEST(xDamageSubtractReq);
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|     DamageExtPtr pDamageExt;
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|     RegionPtr pRepair;
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|     RegionPtr pParts;
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| 
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|     REQUEST_SIZE_MATCH(xDamageSubtractReq);
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|     VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
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|     VERIFY_REGION_OR_NONE(pRepair, stuff->repair, client, DixWriteAccess);
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|     VERIFY_REGION_OR_NONE(pParts, stuff->parts, client, DixWriteAccess);
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| 
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|     if (pDamageExt->level != DamageReportRawRegion) {
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|         DamagePtr pDamage = pDamageExt->pDamage;
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| 
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|         if (pRepair) {
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|             if (pParts)
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|                 RegionIntersect(pParts, DamageRegion(pDamage), pRepair);
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|             if (DamageExtSubtract(pDamageExt, pRepair))
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|                 DamageExtReport(pDamage, DamageRegion(pDamage),
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|                                 (void *) pDamageExt);
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|         }
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|         else {
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|             if (pParts)
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|                 RegionCopy(pParts, DamageRegion(pDamage));
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|             DamageEmpty(pDamage);
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|         }
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|     }
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| 
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|     return Success;
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| }
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| 
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| static int
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| ProcDamageAdd(ClientPtr client)
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| {
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|     REQUEST(xDamageAddReq);
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|     DrawablePtr pDrawable;
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|     RegionPtr pRegion;
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|     int rc;
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| 
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|     REQUEST_SIZE_MATCH(xDamageAddReq);
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|     VERIFY_REGION(pRegion, stuff->region, client, DixWriteAccess);
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|     rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
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|                            DixWriteAccess);
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|     if (rc != Success)
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|         return rc;
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| 
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|     /* The region is relative to the drawable origin, so translate it out to
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|      * screen coordinates like damage expects.
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|      */
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|     RegionTranslate(pRegion, pDrawable->x, pDrawable->y);
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|     DamageDamageRegion(pDrawable, pRegion);
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|     RegionTranslate(pRegion, -pDrawable->x, -pDrawable->y);
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| 
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|     return Success;
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| }
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| 
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| /* Major version controls available requests */
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| static const int version_requests[] = {
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|     X_DamageQueryVersion,       /* before client sends QueryVersion */
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|     X_DamageAdd,                /* Version 1 */
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| };
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| 
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| static int (*ProcDamageVector[XDamageNumberRequests]) (ClientPtr) = {
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|     /*************** Version 1 ******************/
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|     ProcDamageQueryVersion,
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|     ProcDamageCreate,
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|     ProcDamageDestroy,
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|     ProcDamageSubtract,
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|     /*************** Version 1.1 ****************/
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|     ProcDamageAdd,
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| };
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| 
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| static int
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| ProcDamageDispatch(ClientPtr client)
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| {
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|     REQUEST(xDamageReq);
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|     DamageClientPtr pDamageClient = GetDamageClient(client);
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| 
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|     if (pDamageClient->major_version >= ARRAY_SIZE(version_requests))
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|         return BadRequest;
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|     if (stuff->damageReqType > version_requests[pDamageClient->major_version])
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|         return BadRequest;
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|     return (*ProcDamageVector[stuff->damageReqType]) (client);
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| }
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| 
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| static int _X_COLD
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| SProcDamageQueryVersion(ClientPtr client)
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| {
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|     REQUEST(xDamageQueryVersionReq);
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|     REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
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|     swapl(&stuff->majorVersion);
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|     swapl(&stuff->minorVersion);
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|     return (*ProcDamageVector[stuff->damageReqType]) (client);
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| }
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| 
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| static int _X_COLD
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| SProcDamageCreate(ClientPtr client)
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| {
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|     REQUEST(xDamageCreateReq);
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|     REQUEST_SIZE_MATCH(xDamageCreateReq);
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|     swapl(&stuff->damage);
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|     swapl(&stuff->drawable);
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|     return (*ProcDamageVector[stuff->damageReqType]) (client);
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| }
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| 
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| static int _X_COLD
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| SProcDamageDestroy(ClientPtr client)
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| {
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|     REQUEST(xDamageDestroyReq);
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|     REQUEST_SIZE_MATCH(xDamageDestroyReq);
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|     swapl(&stuff->damage);
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|     return (*ProcDamageVector[stuff->damageReqType]) (client);
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| }
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| 
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| static int _X_COLD
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| SProcDamageSubtract(ClientPtr client)
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| {
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|     REQUEST(xDamageSubtractReq);
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|     REQUEST_SIZE_MATCH(xDamageSubtractReq);
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|     swapl(&stuff->damage);
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|     swapl(&stuff->repair);
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|     swapl(&stuff->parts);
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|     return (*ProcDamageVector[stuff->damageReqType]) (client);
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| }
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| 
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| static int _X_COLD
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| SProcDamageAdd(ClientPtr client)
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| {
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|     REQUEST(xDamageAddReq);
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|     REQUEST_SIZE_MATCH(xDamageSubtractReq);
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|     swapl(&stuff->drawable);
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|     swapl(&stuff->region);
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|     return (*ProcDamageVector[stuff->damageReqType]) (client);
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| }
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| 
 | |
| static int (*SProcDamageVector[XDamageNumberRequests]) (ClientPtr) = {
 | |
|     /*************** Version 1 ******************/
 | |
|     SProcDamageQueryVersion,
 | |
|     SProcDamageCreate,
 | |
|     SProcDamageDestroy,
 | |
|     SProcDamageSubtract,
 | |
|     /*************** Version 1.1 ****************/
 | |
|     SProcDamageAdd,
 | |
| };
 | |
| 
 | |
| static int _X_COLD
 | |
| SProcDamageDispatch(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xDamageReq);
 | |
|     DamageClientPtr pDamageClient = GetDamageClient(client);
 | |
| 
 | |
|     if (pDamageClient->major_version >= ARRAY_SIZE(version_requests))
 | |
|         return BadRequest;
 | |
|     if (stuff->damageReqType > version_requests[pDamageClient->major_version])
 | |
|         return BadRequest;
 | |
|     return (*SProcDamageVector[stuff->damageReqType]) (client);
 | |
| }
 | |
| 
 | |
| static int
 | |
| FreeDamageExt(void *value, XID did)
 | |
| {
 | |
|     DamageExtPtr pDamageExt = (DamageExtPtr) value;
 | |
| 
 | |
|     /*
 | |
|      * Get rid of the resource table entry hanging from the window id
 | |
|      */
 | |
|     pDamageExt->id = 0;
 | |
|     if (pDamageExt->pDamage) {
 | |
|         DamageDestroy(pDamageExt->pDamage);
 | |
|     }
 | |
|     free(pDamageExt);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static void _X_COLD
 | |
| SDamageNotifyEvent(xDamageNotifyEvent * from, xDamageNotifyEvent * to)
 | |
| {
 | |
|     to->type = from->type;
 | |
|     cpswaps(from->sequenceNumber, to->sequenceNumber);
 | |
|     cpswapl(from->drawable, to->drawable);
 | |
|     cpswapl(from->damage, to->damage);
 | |
|     cpswaps(from->area.x, to->area.x);
 | |
|     cpswaps(from->area.y, to->area.y);
 | |
|     cpswaps(from->area.width, to->area.width);
 | |
|     cpswaps(from->area.height, to->area.height);
 | |
|     cpswaps(from->geometry.x, to->geometry.x);
 | |
|     cpswaps(from->geometry.y, to->geometry.y);
 | |
|     cpswaps(from->geometry.width, to->geometry.width);
 | |
|     cpswaps(from->geometry.height, to->geometry.height);
 | |
| }
 | |
| 
 | |
| #ifdef XINERAMA
 | |
| 
 | |
| static void
 | |
| PanoramiXDamageReport(DamagePtr pDamage, RegionPtr pRegion, void *closure)
 | |
| {
 | |
|     PanoramiXDamageRes *res = closure;
 | |
|     DamageExtPtr pDamageExt = res->ext;
 | |
|     WindowPtr pWin = (WindowPtr)pDamage->pDrawable;
 | |
|     ScreenPtr pScreen = pDamage->pScreen;
 | |
| 
 | |
|     /* happens on unmap? sigh xinerama */
 | |
|     if (RegionNil(pRegion))
 | |
|         return;
 | |
| 
 | |
|     /* translate root windows if necessary */
 | |
|     if (!pWin->parent)
 | |
|         RegionTranslate(pRegion, pScreen->x, pScreen->y);
 | |
| 
 | |
|     /* add our damage to the protocol view */
 | |
|     DamageReportDamage(pDamageExt->pDamage, pRegion);
 | |
| 
 | |
|     /* empty our view */
 | |
|     DamageEmpty(pDamage);
 | |
| }
 | |
| 
 | |
| static void
 | |
| PanoramiXDamageExtDestroy(DamagePtr pDamage, void *closure)
 | |
| {
 | |
|     PanoramiXDamageRes *damage = closure;
 | |
|     damage->damage[pDamage->pScreen->myNum] = NULL;
 | |
| }
 | |
| 
 | |
| static int
 | |
| PanoramiXDamageCreate(ClientPtr client)
 | |
| {
 | |
|     PanoramiXDamageRes *damage;
 | |
|     PanoramiXRes *draw;
 | |
|     int i, rc;
 | |
| 
 | |
|     REQUEST(xDamageCreateReq);
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xDamageCreateReq);
 | |
|     LEGAL_NEW_RESOURCE(stuff->damage, client);
 | |
|     rc = dixLookupResourceByClass((void **)&draw, stuff->drawable, XRC_DRAWABLE,
 | |
|                                   client, DixGetAttrAccess | DixReadAccess);
 | |
|     if (rc != Success)
 | |
|         return rc;
 | |
| 
 | |
|     if (!(damage = calloc(1, sizeof(PanoramiXDamageRes))))
 | |
|         return BadAlloc;
 | |
| 
 | |
|     if (!AddResource(stuff->damage, XRT_DAMAGE, damage))
 | |
|         return BadAlloc;
 | |
| 
 | |
|     damage->ext = doDamageCreate(client, &rc);
 | |
|     if (rc == Success && draw->type == XRT_WINDOW) {
 | |
|         FOR_NSCREENS_FORWARD(i) {
 | |
|             DrawablePtr pDrawable;
 | |
|             DamagePtr pDamage = DamageCreate(PanoramiXDamageReport,
 | |
|                                              PanoramiXDamageExtDestroy,
 | |
|                                              DamageReportRawRegion,
 | |
|                                              FALSE,
 | |
|                                              screenInfo.screens[i],
 | |
|                                              damage);
 | |
|             if (!pDamage) {
 | |
|                 rc = BadAlloc;
 | |
|             } else {
 | |
|                 damage->damage[i] = pDamage;
 | |
|                 rc = dixLookupDrawable(&pDrawable, draw->info[i].id, client,
 | |
|                                        M_WINDOW,
 | |
|                                        DixGetAttrAccess | DixReadAccess);
 | |
|             }
 | |
|             if (rc != Success)
 | |
|                 break;
 | |
| 
 | |
|             DamageExtRegister(pDrawable, pDamage, i != 0);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (rc != Success)
 | |
|         FreeResource(stuff->damage, X11_RESTYPE_NONE);
 | |
| 
 | |
|     return rc;
 | |
| }
 | |
| 
 | |
| static int
 | |
| PanoramiXDamageDelete(void *res, XID id)
 | |
| {
 | |
|     int i;
 | |
|     PanoramiXDamageRes *damage = res;
 | |
| 
 | |
|     FOR_NSCREENS_BACKWARD(i) {
 | |
|         if (damage->damage[i]) {
 | |
|             DamageDestroy(damage->damage[i]);
 | |
|             damage->damage[i] = NULL;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     free(damage);
 | |
|     return 1;
 | |
| }
 | |
| 
 | |
| void
 | |
| PanoramiXDamageInit(void)
 | |
| {
 | |
|     XRT_DAMAGE = CreateNewResourceType(PanoramiXDamageDelete, "XineramaDamage");
 | |
|     if (!XRT_DAMAGE)
 | |
|         FatalError("Couldn't Xineramify Damage extension\n");
 | |
| 
 | |
|     PanoramiXSaveDamageCreate = ProcDamageVector[X_DamageCreate];
 | |
|     ProcDamageVector[X_DamageCreate] = PanoramiXDamageCreate;
 | |
| }
 | |
| 
 | |
| void
 | |
| PanoramiXDamageReset(void)
 | |
| {
 | |
|     ProcDamageVector[X_DamageCreate] = PanoramiXSaveDamageCreate;
 | |
| }
 | |
| 
 | |
| #endif /* XINERAMA */
 | |
| 
 | |
| void
 | |
| DamageExtensionInit(void)
 | |
| {
 | |
|     ExtensionEntry *extEntry;
 | |
|     int s;
 | |
| 
 | |
|     for (s = 0; s < screenInfo.numScreens; s++)
 | |
|         DamageSetup(screenInfo.screens[s]);
 | |
| 
 | |
|     DamageExtType = CreateNewResourceType(FreeDamageExt, "DamageExt");
 | |
|     if (!DamageExtType)
 | |
|         return;
 | |
| 
 | |
|     if (!dixRegisterPrivateKey
 | |
|         (&DamageClientPrivateKeyRec, PRIVATE_CLIENT, sizeof(DamageClientRec)))
 | |
|         return;
 | |
| 
 | |
|     if ((extEntry = AddExtension(DAMAGE_NAME, XDamageNumberEvents,
 | |
|                                  XDamageNumberErrors,
 | |
|                                  ProcDamageDispatch, SProcDamageDispatch,
 | |
|                                  NULL, StandardMinorOpcode)) != 0) {
 | |
|         DamageReqCode = (unsigned char) extEntry->base;
 | |
|         DamageEventBase = extEntry->eventBase;
 | |
|         EventSwapVector[DamageEventBase + XDamageNotify] =
 | |
|             (EventSwapPtr) SDamageNotifyEvent;
 | |
|         SetResourceTypeErrorValue(DamageExtType,
 | |
|                                   extEntry->errorBase + BadDamage);
 | |
| #ifdef XINERAMA
 | |
|         if (XRT_DAMAGE)
 | |
|             SetResourceTypeErrorValue(XRT_DAMAGE,
 | |
|                                       extEntry->errorBase + BadDamage);
 | |
| #endif /* XINERAMA */
 | |
|     }
 | |
| }
 |