2 files changed, 525 insertions, 521 deletions
diff --git a/xorg-server/damageext/damageext.c b/xorg-server/damageext/damageext.c
index 02db88a8e..dfd8ebfd0 100644
--- a/xorg-server/damageext/damageext.c
+++ b/xorg-server/damageext/damageext.c
@@ -1,521 +1,521 @@
-/*
- * Copyright © 2002 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 "damageextint.h"
-#include "protocol-versions.h"
-
-static unsigned char	DamageReqCode;
-static int		DamageEventBase;
-static RESTYPE		DamageExtType;
-static RESTYPE		DamageExtWinType;
-
-static DevPrivateKeyRec DamageClientPrivateKeyRec;
-#define DamageClientPrivateKey (&DamageClientPrivateKeyRec)
-
-static void
-DamageExtNotify (DamageExtPtr pDamageExt, BoxPtr pBoxes, int nBoxes)
-{
-    ClientPtr		pClient = pDamageExt->pClient;
-    DamageClientPtr	pDamageClient = GetDamageClient (pClient);
-    DrawablePtr		pDrawable = pDamageExt->pDrawable;
-    xDamageNotifyEvent	ev;
-    int			i;
-
-    UpdateCurrentTimeIf ();
-    ev.type = DamageEventBase + XDamageNotify;
-    ev.level = pDamageExt->level;
-    ev.drawable = pDamageExt->drawable;
-    ev.damage = pDamageExt->id;
-    ev.timestamp = currentTime.milliseconds;
-    ev.geometry.x = pDrawable->x;
-    ev.geometry.y = pDrawable->y;
-    ev.geometry.width = pDrawable->width;
-    ev.geometry.height = pDrawable->height;
-    if (pBoxes)
-    {
-	for (i = 0; i < nBoxes; i++)
-	{
-	    ev.level = pDamageExt->level;
-	    if (i < nBoxes - 1)
-		ev.level |= DamageNotifyMore;
-	    ev.area.x = pBoxes[i].x1;
-	    ev.area.y = pBoxes[i].y1;
-	    ev.area.width = pBoxes[i].x2 - pBoxes[i].x1;
-	    ev.area.height = pBoxes[i].y2 - pBoxes[i].y1;
-	    WriteEventsToClient (pClient, 1, (xEvent *) &ev);
-	}
-    }
-    else
-    {
-	ev.area.x = 0;
-	ev.area.y = 0;
-	ev.area.width = pDrawable->width;
-	ev.area.height = pDrawable->height;
-	WriteEventsToClient (pClient, 1, (xEvent *) &ev);
-    }
-    /* Composite extension marks clients with manual Subwindows as critical */
-    if (pDamageClient->critical > 0)
-    {
-	SetCriticalOutputPending ();
-	pClient->smart_priority = SMART_MAX_PRIORITY;
-    }
-}
-
-static void
-DamageExtReport (DamagePtr pDamage, RegionPtr pRegion, void *closure)
-{
-    DamageExtPtr    pDamageExt = closure;
-
-    switch (pDamageExt->level) {
-    case DamageReportRawRegion:
-    case DamageReportDeltaRegion:
-	DamageExtNotify (pDamageExt, RegionRects(pRegion), RegionNumRects(pRegion));
-	break;
-    case DamageReportBoundingBox:
-	DamageExtNotify (pDamageExt, RegionExtents(pRegion), 1);
-	break;
-    case DamageReportNonEmpty:
-	DamageExtNotify (pDamageExt, NullBox, 0);
-	break;
-    case DamageReportNone:
-	break;
-    }
-}
-
-static void
-DamageExtDestroy (DamagePtr pDamage, void *closure)
-{
-    DamageExtPtr    pDamageExt = closure;
-    
-    pDamageExt->pDamage = 0;
-    if (pDamageExt->id)
-	FreeResource (pDamageExt->id, RT_NONE);
-}
-
-void
-DamageExtSetCritical (ClientPtr pClient, Bool critical)
-{
-    DamageClientPtr pDamageClient = GetDamageClient (pClient);
-
-    if (pDamageClient)
-	pDamageClient->critical += critical ? 1 : -1;
-}
-
-static int
-ProcDamageQueryVersion(ClientPtr client)
-{
-    DamageClientPtr pDamageClient = GetDamageClient (client);
-    xDamageQueryVersionReply rep;
-    register int n;
-    REQUEST(xDamageQueryVersionReq);
-
-    REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
-    rep.type = X_Reply;
-    rep.length = 0;
-    rep.sequenceNumber = client->sequence;
-    if (stuff->majorVersion < SERVER_DAMAGE_MAJOR_VERSION) {
-	rep.majorVersion = stuff->majorVersion;
-	rep.minorVersion = stuff->minorVersion;
-    } else {
-	rep.majorVersion = SERVER_DAMAGE_MAJOR_VERSION;
-	if (stuff->majorVersion == SERVER_DAMAGE_MAJOR_VERSION &&
-	    stuff->minorVersion < SERVER_DAMAGE_MINOR_VERSION)
-	    rep.minorVersion = stuff->minorVersion;
-	else
-	    rep.minorVersion = SERVER_DAMAGE_MINOR_VERSION;
-    }
-    pDamageClient->major_version = rep.majorVersion;
-    pDamageClient->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(xDamageQueryVersionReply), (char *)&rep);
-    return Success;
-}
-
-static int
-ProcDamageCreate (ClientPtr client)
-{
-    DrawablePtr		pDrawable;
-    DamageExtPtr	pDamageExt;
-    DamageReportLevel	level;
-    RegionPtr		pRegion;
-    int			rc;
-    
-    REQUEST(xDamageCreateReq);
-
-    REQUEST_SIZE_MATCH(xDamageCreateReq);
-    LEGAL_NEW_RESOURCE(stuff->damage, client);
-    rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
-			   DixGetAttrAccess|DixReadAccess);
-    if (rc != Success)
-	return rc;
-
-    switch (stuff->level) {
-    case XDamageReportRawRectangles:
-	level = DamageReportRawRegion;
-	break;
-    case XDamageReportDeltaRectangles:
-	level = DamageReportDeltaRegion;
-	break;
-    case XDamageReportBoundingBox:
-	level = DamageReportBoundingBox;
-	break;
-    case XDamageReportNonEmpty:
-	level = DamageReportNonEmpty;
-	break;
-    default:
-	client->errorValue = stuff->level;
-	return BadValue;
-    }
-    
-    pDamageExt = malloc(sizeof (DamageExtRec));
-    if (!pDamageExt)
-	return BadAlloc;
-    pDamageExt->id = stuff->damage;
-    pDamageExt->drawable = stuff->drawable;
-    pDamageExt->pDrawable = pDrawable;
-    pDamageExt->level = level;
-    pDamageExt->pClient = client;
-    pDamageExt->pDamage = DamageCreate (DamageExtReport,
-					DamageExtDestroy,
-					level,
-					FALSE,
-					pDrawable->pScreen,
-					pDamageExt);
-    if (!pDamageExt->pDamage)
-    {
-	free(pDamageExt);
-	return BadAlloc;
-    }
-    if (!AddResource (stuff->damage, DamageExtType, (pointer) pDamageExt))
-	return BadAlloc;
-
-    DamageSetReportAfterOp (pDamageExt->pDamage, TRUE);
-    DamageRegister (pDamageExt->pDrawable, pDamageExt->pDamage);
-
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-	pRegion = &((WindowPtr) pDrawable)->borderClip;
-	DamageReportDamage(pDamageExt->pDamage, pRegion);
-    }
-
-    return Success;
-}
-
-static int
-ProcDamageDestroy (ClientPtr client)
-{
-    REQUEST(xDamageDestroyReq);
-    DamageExtPtr    pDamageExt;
-
-    REQUEST_SIZE_MATCH(xDamageDestroyReq);
-    VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
-    FreeResource (stuff->damage, RT_NONE);
-    return Success;
-}
-
-static int
-ProcDamageSubtract (ClientPtr client)
-{
-    REQUEST(xDamageSubtractReq);
-    DamageExtPtr    pDamageExt;
-    RegionPtr	    pRepair;
-    RegionPtr	    pParts;
-
-    REQUEST_SIZE_MATCH(xDamageSubtractReq);
-    VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
-    VERIFY_REGION_OR_NONE(pRepair, stuff->repair, client, DixWriteAccess);
-    VERIFY_REGION_OR_NONE(pParts, stuff->parts, client, DixWriteAccess);
-
-    if (pDamageExt->level != DamageReportRawRegion)
-    {
-	DamagePtr   pDamage = pDamageExt->pDamage;
-	if (pRepair)
-	{
-	    if (pParts)
-		RegionIntersect(pParts, DamageRegion (pDamage), pRepair);
-	    if (DamageSubtract (pDamage, pRepair))
-		DamageExtReport (pDamage, DamageRegion (pDamage), (void *) pDamageExt);
-	}
-	else
-	{
-	    if (pParts)
-		RegionCopy(pParts, DamageRegion (pDamage));
-	    DamageEmpty (pDamage);
-	}
-    }
-    return Success;
-}
-
-static int
-ProcDamageAdd (ClientPtr client)
-{
-    REQUEST(xDamageAddReq);
-    DrawablePtr	    pDrawable;
-    RegionPtr	    pRegion;
-    int		    rc;
-
-    REQUEST_SIZE_MATCH(xDamageAddReq);
-    VERIFY_REGION(pRegion, stuff->region, client, DixWriteAccess);
-    rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
-			   DixWriteAccess);
-    if (rc != Success)
-	return rc;
-
-    /* The region is relative to the drawable origin, so translate it out to
-     * screen coordinates like damage expects.
-     */
-    RegionTranslate(pRegion, pDrawable->x, pDrawable->y);
-    DamageDamageRegion(pDrawable, pRegion);
-    RegionTranslate(pRegion, -pDrawable->x, -pDrawable->y);
-
-    return Success;
-}
-
-/* Major version controls available requests */
-static const int version_requests[] = {
-    X_DamageQueryVersion,	/* before client sends QueryVersion */
-    X_DamageAdd,		/* Version 1 */
-};
-
-#define NUM_VERSION_REQUESTS	(sizeof (version_requests) / sizeof (version_requests[0]))
-    
-static int (*ProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
-/*************** Version 1 ******************/
-    ProcDamageQueryVersion,
-    ProcDamageCreate,
-    ProcDamageDestroy,
-    ProcDamageSubtract,
-/*************** Version 1.1 ****************/
-    ProcDamageAdd,
-};
-
-
-static int
-ProcDamageDispatch (ClientPtr client)
-{
-    REQUEST(xDamageReq);
-    DamageClientPtr pDamageClient = GetDamageClient (client);
-
-    if (pDamageClient->major_version >= NUM_VERSION_REQUESTS)
-	return BadRequest;
-    if (stuff->damageReqType > version_requests[pDamageClient->major_version])
-	return BadRequest;
-    return (*ProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static int
-SProcDamageQueryVersion(ClientPtr client)
-{
-    register int n;
-    REQUEST(xDamageQueryVersionReq);
-
-    swaps(&stuff->length, n);
-    REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
-    swapl(&stuff->majorVersion, n);
-    swapl(&stuff->minorVersion, n);
-    return (*ProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static int
-SProcDamageCreate (ClientPtr client)
-{
-    register int n;
-    REQUEST(xDamageCreateReq);
-    
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH(xDamageCreateReq);
-    swapl (&stuff->damage, n);
-    swapl (&stuff->drawable, n);
-    return (*ProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static int
-SProcDamageDestroy (ClientPtr client)
-{
-    register int n;
-    REQUEST(xDamageDestroyReq);
-    
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH(xDamageDestroyReq);
-    swapl (&stuff->damage, n);
-    return (*ProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static int
-SProcDamageSubtract (ClientPtr client)
-{
-    register int n;
-    REQUEST(xDamageSubtractReq);
-    
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH(xDamageSubtractReq);
-    swapl (&stuff->damage, n);
-    swapl (&stuff->repair, n);
-    swapl (&stuff->parts, n);
-    return (*ProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static int
-SProcDamageAdd (ClientPtr client)
-{
-    register int n;
-    REQUEST(xDamageAddReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH(xDamageSubtractReq);
-    swapl (&stuff->drawable, n);
-    swapl (&stuff->region, n);
-    return (*ProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static int (*SProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
-/*************** Version 1 ******************/
-    SProcDamageQueryVersion,
-    SProcDamageCreate,
-    SProcDamageDestroy,
-    SProcDamageSubtract,
-/*************** Version 1.1 ****************/
-    SProcDamageAdd,
-};
-
-static int
-SProcDamageDispatch (ClientPtr client)
-{
-    REQUEST(xDamageReq);
-    if (stuff->damageReqType >= XDamageNumberRequests)
-	return BadRequest;
-    return (*SProcDamageVector[stuff->damageReqType]) (client);
-}
-
-static void
-DamageClientCallback (CallbackListPtr	*list,
-		      pointer		closure,
-		      pointer		data)
-{
-    NewClientInfoRec	*clientinfo = (NewClientInfoRec *) data;
-    ClientPtr		pClient = clientinfo->client;
-    DamageClientPtr	pDamageClient = GetDamageClient (pClient);
-
-    pDamageClient->critical = 0;
-    pDamageClient->major_version = 0;
-    pDamageClient->minor_version = 0;
-}
-
-/*ARGSUSED*/
-static void
-DamageResetProc (ExtensionEntry *extEntry)
-{
-    DeleteCallback (&ClientStateCallback, DamageClientCallback, 0);
-}
-
-static int
-FreeDamageExt (pointer value, XID did)
-{
-    DamageExtPtr    pDamageExt = (DamageExtPtr) value;
-
-    /*
-     * Get rid of the resource table entry hanging from the window id
-     */
-    pDamageExt->id = 0;
-    if (WindowDrawable(pDamageExt->pDrawable->type))
-	FreeResourceByType (pDamageExt->pDrawable->id, DamageExtWinType, TRUE);
-    if (pDamageExt->pDamage)
-    {
-	DamageUnregister (pDamageExt->pDrawable, pDamageExt->pDamage);
-	DamageDestroy (pDamageExt->pDamage);
-    }
-    free(pDamageExt);
-    return Success;
-}
-
-static int
-FreeDamageExtWin (pointer value, XID wid)
-{
-    DamageExtPtr    pDamageExt = (DamageExtPtr) value;
-
-    if (pDamageExt->id)
-	FreeResource (pDamageExt->id, RT_NONE);
-    return Success;
-}
-
-static void
-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);
-}
-
-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;
-
-    DamageExtWinType = CreateNewResourceType (FreeDamageExtWin, "DamageExtWin");
-    if (!DamageExtWinType)
-	return;
-
-    if (!dixRegisterPrivateKey(&DamageClientPrivateKeyRec, PRIVATE_CLIENT, sizeof (DamageClientRec)))
-	return;
-
-    if (!AddCallback (&ClientStateCallback, DamageClientCallback, 0))
-	return;
-
-    if ((extEntry = AddExtension(DAMAGE_NAME, XDamageNumberEvents, 
-				 XDamageNumberErrors,
-				 ProcDamageDispatch, SProcDamageDispatch,
-				 DamageResetProc, StandardMinorOpcode)) != 0)
-    {
-	DamageReqCode = (unsigned char)extEntry->base;
-	DamageEventBase = extEntry->eventBase;
-	EventSwapVector[DamageEventBase + XDamageNotify] =
-			(EventSwapPtr) SDamageNotifyEvent;
-	SetResourceTypeErrorValue(DamageExtType, extEntry->errorBase + BadDamage);
-    }
-}
+/*
+ * Copyright © 2002 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 "damageextint.h"
+#include "protocol-versions.h"
+
+static unsigned char	DamageReqCode;
+static int		DamageEventBase;
+static RESTYPE		DamageExtType;
+static RESTYPE		DamageExtWinType;
+
+static DevPrivateKeyRec DamageClientPrivateKeyRec;
+#define DamageClientPrivateKey (&DamageClientPrivateKeyRec)
+
+static void
+DamageExtNotify (DamageExtPtr pDamageExt, BoxPtr pBoxes, int nBoxes)
+{
+    ClientPtr		pClient = pDamageExt->pClient;
+    DamageClientPtr	pDamageClient = GetDamageClient (pClient);
+    DrawablePtr		pDrawable = pDamageExt->pDrawable;
+    xDamageNotifyEvent	ev;
+    int			i;
+
+    UpdateCurrentTimeIf ();
+    ev.type = DamageEventBase + XDamageNotify;
+    ev.level = pDamageExt->level;
+    ev.drawable = pDamageExt->drawable;
+    ev.damage = pDamageExt->id;
+    ev.timestamp = currentTime.milliseconds;
+    ev.geometry.x = pDrawable->x;
+    ev.geometry.y = pDrawable->y;
+    ev.geometry.width = pDrawable->width;
+    ev.geometry.height = pDrawable->height;
+    if (pBoxes)
+    {
+	for (i = 0; i < nBoxes; i++)
+	{
+	    ev.level = pDamageExt->level;
+	    if (i < nBoxes - 1)
+		ev.level |= DamageNotifyMore;
+	    ev.area.x = pBoxes[i].x1;
+	    ev.area.y = pBoxes[i].y1;
+	    ev.area.width = pBoxes[i].x2 - pBoxes[i].x1;
+	    ev.area.height = pBoxes[i].y2 - pBoxes[i].y1;
+	    WriteEventsToClient (pClient, 1, (xEvent *) &ev);
+	}
+    }
+    else
+    {
+	ev.area.x = 0;
+	ev.area.y = 0;
+	ev.area.width = pDrawable->width;
+	ev.area.height = pDrawable->height;
+	WriteEventsToClient (pClient, 1, (xEvent *) &ev);
+    }
+    /* Composite extension marks clients with manual Subwindows as critical */
+    if (pDamageClient->critical > 0)
+    {
+	SetCriticalOutputPending ();
+	pClient->smart_priority = SMART_MAX_PRIORITY;
+    }
+}
+
+static void
+DamageExtReport (DamagePtr pDamage, RegionPtr pRegion, void *closure)
+{
+    DamageExtPtr    pDamageExt = closure;
+
+    switch (pDamageExt->level) {
+    case DamageReportRawRegion:
+    case DamageReportDeltaRegion:
+	DamageExtNotify (pDamageExt, RegionRects(pRegion), RegionNumRects(pRegion));
+	break;
+    case DamageReportBoundingBox:
+	DamageExtNotify (pDamageExt, RegionExtents(pRegion), 1);
+	break;
+    case DamageReportNonEmpty:
+	DamageExtNotify (pDamageExt, NullBox, 0);
+	break;
+    case DamageReportNone:
+	break;
+    }
+}
+
+static void
+DamageExtDestroy (DamagePtr pDamage, void *closure)
+{
+    DamageExtPtr    pDamageExt = closure;
+    
+    pDamageExt->pDamage = 0;
+    if (pDamageExt->id)
+	FreeResource (pDamageExt->id, RT_NONE);
+}
+
+void
+DamageExtSetCritical (ClientPtr pClient, Bool critical)
+{
+    DamageClientPtr pDamageClient = GetDamageClient (pClient);
+
+    if (pDamageClient)
+	pDamageClient->critical += critical ? 1 : -1;
+}
+
+static int
+ProcDamageQueryVersion(ClientPtr client)
+{
+    DamageClientPtr pDamageClient = GetDamageClient (client);
+    xDamageQueryVersionReply rep;
+    register int n;
+    REQUEST(xDamageQueryVersionReq);
+
+    REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    if (stuff->majorVersion < SERVER_DAMAGE_MAJOR_VERSION) {
+	rep.majorVersion = stuff->majorVersion;
+	rep.minorVersion = stuff->minorVersion;
+    } else {
+	rep.majorVersion = SERVER_DAMAGE_MAJOR_VERSION;
+	if (stuff->majorVersion == SERVER_DAMAGE_MAJOR_VERSION &&
+	    stuff->minorVersion < SERVER_DAMAGE_MINOR_VERSION)
+	    rep.minorVersion = stuff->minorVersion;
+	else
+	    rep.minorVersion = SERVER_DAMAGE_MINOR_VERSION;
+    }
+    pDamageClient->major_version = rep.majorVersion;
+    pDamageClient->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(xDamageQueryVersionReply), (char *)&rep);
+    return Success;
+}
+
+static int
+ProcDamageCreate (ClientPtr client)
+{
+    DrawablePtr		pDrawable;
+    DamageExtPtr	pDamageExt;
+    DamageReportLevel	level;
+    RegionPtr		pRegion;
+    int			rc;
+    
+    REQUEST(xDamageCreateReq);
+
+    REQUEST_SIZE_MATCH(xDamageCreateReq);
+    LEGAL_NEW_RESOURCE(stuff->damage, client);
+    rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
+			   DixGetAttrAccess|DixReadAccess);
+    if (rc != Success)
+	return rc;
+
+    switch (stuff->level) {
+    case XDamageReportRawRectangles:
+	level = DamageReportRawRegion;
+	break;
+    case XDamageReportDeltaRectangles:
+	level = DamageReportDeltaRegion;
+	break;
+    case XDamageReportBoundingBox:
+	level = DamageReportBoundingBox;
+	break;
+    case XDamageReportNonEmpty:
+	level = DamageReportNonEmpty;
+	break;
+    default:
+	client->errorValue = stuff->level;
+	return BadValue;
+    }
+    
+    pDamageExt = malloc(sizeof (DamageExtRec));
+    if (!pDamageExt)
+	return BadAlloc;
+    pDamageExt->id = stuff->damage;
+    pDamageExt->drawable = stuff->drawable;
+    pDamageExt->pDrawable = pDrawable;
+    pDamageExt->level = level;
+    pDamageExt->pClient = client;
+    pDamageExt->pDamage = DamageCreate (DamageExtReport,
+					DamageExtDestroy,
+					level,
+					FALSE,
+					pDrawable->pScreen,
+					pDamageExt);
+    if (!pDamageExt->pDamage)
+    {
+	free(pDamageExt);
+	return BadAlloc;
+    }
+    if (!AddResource (stuff->damage, DamageExtType, (pointer) pDamageExt))
+	return BadAlloc;
+
+    DamageSetReportAfterOp (pDamageExt->pDamage, TRUE);
+    DamageRegister (pDamageExt->pDrawable, pDamageExt->pDamage);
+
+    if (pDrawable->type == DRAWABLE_WINDOW)
+    {
+	pRegion = &((WindowPtr) pDrawable)->borderClip;
+	DamageReportDamage(pDamageExt->pDamage, pRegion);
+    }
+
+    return Success;
+}
+
+static int
+ProcDamageDestroy (ClientPtr client)
+{
+    REQUEST(xDamageDestroyReq);
+    DamageExtPtr    pDamageExt;
+
+    REQUEST_SIZE_MATCH(xDamageDestroyReq);
+    VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
+    FreeResource (stuff->damage, RT_NONE);
+    return Success;
+}
+
+static int
+ProcDamageSubtract (ClientPtr client)
+{
+    REQUEST(xDamageSubtractReq);
+    DamageExtPtr    pDamageExt;
+    RegionPtr	    pRepair;
+    RegionPtr	    pParts;
+
+    REQUEST_SIZE_MATCH(xDamageSubtractReq);
+    VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
+    VERIFY_REGION_OR_NONE(pRepair, stuff->repair, client, DixWriteAccess);
+    VERIFY_REGION_OR_NONE(pParts, stuff->parts, client, DixWriteAccess);
+
+    if (pDamageExt->level != DamageReportRawRegion)
+    {
+	DamagePtr   pDamage = pDamageExt->pDamage;
+	if (pRepair)
+	{
+	    if (pParts)
+		RegionIntersect(pParts, DamageRegion (pDamage), pRepair);
+	    if (DamageSubtract (pDamage, pRepair))
+		DamageExtReport (pDamage, DamageRegion (pDamage), (void *) pDamageExt);
+	}
+	else
+	{
+	    if (pParts)
+		RegionCopy(pParts, DamageRegion (pDamage));
+	    DamageEmpty (pDamage);
+	}
+    }
+    return Success;
+}
+
+static int
+ProcDamageAdd (ClientPtr client)
+{
+    REQUEST(xDamageAddReq);
+    DrawablePtr	    pDrawable;
+    RegionPtr	    pRegion;
+    int		    rc;
+
+    REQUEST_SIZE_MATCH(xDamageAddReq);
+    VERIFY_REGION(pRegion, stuff->region, client, DixWriteAccess);
+    rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
+			   DixWriteAccess);
+    if (rc != Success)
+	return rc;
+
+    /* The region is relative to the drawable origin, so translate it out to
+     * screen coordinates like damage expects.
+     */
+    RegionTranslate(pRegion, pDrawable->x, pDrawable->y);
+    DamageDamageRegion(pDrawable, pRegion);
+    RegionTranslate(pRegion, -pDrawable->x, -pDrawable->y);
+
+    return Success;
+}
+
+/* Major version controls available requests */
+static const int version_requests[] = {
+    X_DamageQueryVersion,	/* before client sends QueryVersion */
+    X_DamageAdd,		/* Version 1 */
+};
+
+#define NUM_VERSION_REQUESTS	(sizeof (version_requests) / sizeof (version_requests[0]))
+    
+static int (*ProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
+/*************** Version 1 ******************/
+    ProcDamageQueryVersion,
+    ProcDamageCreate,
+    ProcDamageDestroy,
+    ProcDamageSubtract,
+/*************** Version 1.1 ****************/
+    ProcDamageAdd,
+};
+
+
+static int
+ProcDamageDispatch (ClientPtr client)
+{
+    REQUEST(xDamageReq);
+    DamageClientPtr pDamageClient = GetDamageClient (client);
+
+    if (pDamageClient->major_version >= NUM_VERSION_REQUESTS)
+	return BadRequest;
+    if (stuff->damageReqType > version_requests[pDamageClient->major_version])
+	return BadRequest;
+    return (*ProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static int
+SProcDamageQueryVersion(ClientPtr client)
+{
+    register int n;
+    REQUEST(xDamageQueryVersionReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
+    swapl(&stuff->majorVersion, n);
+    swapl(&stuff->minorVersion, n);
+    return (*ProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static int
+SProcDamageCreate (ClientPtr client)
+{
+    register int n;
+    REQUEST(xDamageCreateReq);
+    
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xDamageCreateReq);
+    swapl (&stuff->damage, n);
+    swapl (&stuff->drawable, n);
+    return (*ProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static int
+SProcDamageDestroy (ClientPtr client)
+{
+    register int n;
+    REQUEST(xDamageDestroyReq);
+    
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xDamageDestroyReq);
+    swapl (&stuff->damage, n);
+    return (*ProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static int
+SProcDamageSubtract (ClientPtr client)
+{
+    register int n;
+    REQUEST(xDamageSubtractReq);
+    
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xDamageSubtractReq);
+    swapl (&stuff->damage, n);
+    swapl (&stuff->repair, n);
+    swapl (&stuff->parts, n);
+    return (*ProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static int
+SProcDamageAdd (ClientPtr client)
+{
+    register int n;
+    REQUEST(xDamageAddReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xDamageSubtractReq);
+    swapl (&stuff->drawable, n);
+    swapl (&stuff->region, n);
+    return (*ProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static int (*SProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
+/*************** Version 1 ******************/
+    SProcDamageQueryVersion,
+    SProcDamageCreate,
+    SProcDamageDestroy,
+    SProcDamageSubtract,
+/*************** Version 1.1 ****************/
+    SProcDamageAdd,
+};
+
+static int
+SProcDamageDispatch (ClientPtr client)
+{
+    REQUEST(xDamageReq);
+    if (stuff->damageReqType >= XDamageNumberRequests)
+	return BadRequest;
+    return (*SProcDamageVector[stuff->damageReqType]) (client);
+}
+
+static void
+DamageClientCallback (CallbackListPtr	*list,
+		      pointer		closure,
+		      pointer		data)
+{
+    NewClientInfoRec	*clientinfo = (NewClientInfoRec *) data;
+    ClientPtr		pClient = clientinfo->client;
+    DamageClientPtr	pDamageClient = GetDamageClient (pClient);
+
+    pDamageClient->critical = 0;
+    pDamageClient->major_version = 0;
+    pDamageClient->minor_version = 0;
+}
+
+/*ARGSUSED*/
+static void
+DamageResetProc (ExtensionEntry *extEntry)
+{
+    DeleteCallback (&ClientStateCallback, DamageClientCallback, 0);
+}
+
+static int
+FreeDamageExt (pointer value, XID did)
+{
+    DamageExtPtr    pDamageExt = (DamageExtPtr) value;
+
+    /*
+     * Get rid of the resource table entry hanging from the window id
+     */
+    pDamageExt->id = 0;
+    if (WindowDrawable(pDamageExt->pDrawable->type))
+	FreeResourceByType (pDamageExt->pDrawable->id, DamageExtWinType, TRUE);
+    if (pDamageExt->pDamage)
+    {
+	DamageUnregister (pDamageExt->pDrawable, pDamageExt->pDamage);
+	DamageDestroy (pDamageExt->pDamage);
+    }
+    free(pDamageExt);
+    return Success;
+}
+
+static int
+FreeDamageExtWin (pointer value, XID wid)
+{
+    DamageExtPtr    pDamageExt = (DamageExtPtr) value;
+
+    if (pDamageExt->id)
+	FreeResource (pDamageExt->id, RT_NONE);
+    return Success;
+}
+
+static void
+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);
+}
+
+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;
+
+    DamageExtWinType = CreateNewResourceType (FreeDamageExtWin, "DamageExtWin");
+    if (!DamageExtWinType)
+	return;
+
+    if (!dixRegisterPrivateKey(&DamageClientPrivateKeyRec, PRIVATE_CLIENT, sizeof (DamageClientRec)))
+	return;
+
+    if (!AddCallback (&ClientStateCallback, DamageClientCallback, 0))
+	return;
+
+    if ((extEntry = AddExtension(DAMAGE_NAME, XDamageNumberEvents, 
+				 XDamageNumberErrors,
+				 ProcDamageDispatch, SProcDamageDispatch,
+				 DamageResetProc, StandardMinorOpcode)) != 0)
+    {
+	DamageReqCode = (unsigned char)extEntry->base;
+	DamageEventBase = extEntry->eventBase;
+	EventSwapVector[DamageEventBase + XDamageNotify] =
+			(EventSwapPtr) SDamageNotifyEvent;
+	SetResourceTypeErrorValue(DamageExtType, extEntry->errorBase + BadDamage);
+    }
+}
diff --git a/xorg-server/damageext/makefile b/xorg-server/damageext/makefile
new file mode 100644
index 000000000..c8481cd3c
--- /dev/null
+++ b/xorg-server/damageext/makefile
@@ -0,0 +1,4 @@
+CSRCS=damageext.c
+
+LIBRARY=libdamageext
+