xserver git update 11/5/2010

1 files changed, 525 insertions, 524 deletions

diff --git a/xorg-server/damageext/damageext.c b/xorg-server/damageext/damageext.c
index 462796e91..2608e60b3 100644
--- a/xorg-server/damageext/damageext.c
+++ b/xorg-server/damageext/damageext.c
@@ -1,524 +1,525 @@
-/*
- * 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 int		DamageErrorBase;
-static RESTYPE		DamageExtType;
-static RESTYPE		DamageExtWinType;
-
-static int DamageClientPrivateKeyIndex;
-static DevPrivateKey DamageClientPrivateKey = &DamageClientPrivateKeyIndex;
-
-#define prScreen	screenInfo.screens[0]
-
-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.sequenceNumber = pClient->sequence;
-    ev.drawable = pDrawable->id;
-    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;
-	    if (!pClient->clientGone)
-		WriteEventsToClient (pClient, 1, (xEvent *) &ev);
-	}
-    }
-    else
-    {
-	ev.area.x = 0;
-	ev.area.y = 0;
-	ev.area.width = pDrawable->width;
-	ev.area.height = pDrawable->height;
-	if (!pClient->clientGone)
-	    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, REGION_RECTS(pRegion), REGION_NUM_RECTS(pRegion));
-	break;
-    case DamageReportBoundingBox:
-	DamageExtNotify (pDamageExt, REGION_EXTENTS(prScreen, 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(client->noClientException);
-}
-
-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 = xalloc (sizeof (DamageExtRec));
-    if (!pDamageExt)
-	return BadAlloc;
-    pDamageExt->id = stuff->damage;
-    pDamageExt->pDrawable = pDrawable;
-    pDamageExt->level = level;
-    pDamageExt->pClient = client;
-    pDamageExt->pDamage = DamageCreate (DamageExtReport,
-					DamageExtDestroy,
-					level,
-					FALSE,
-					pDrawable->pScreen,
-					pDamageExt);
-    if (!pDamageExt->pDamage)
-    {
-	xfree (pDamageExt);
-	return BadAlloc;
-    }
-    if (!AddResource (stuff->damage, DamageExtType, (pointer) pDamageExt))
-	return BadAlloc;
-
-    DamageRegister (pDamageExt->pDrawable, pDamageExt->pDamage);
-
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-	pRegion = &((WindowPtr) pDrawable)->borderClip;
-	DamageRegionAppend(pDrawable, pRegion);
-    }
-
-    return (client->noClientException);
-}
-
-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 (client->noClientException);
-}
-
-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)
-		REGION_INTERSECT (prScreen, pParts, DamageRegion (pDamage), pRepair);
-	    if (DamageSubtract (pDamage, pRepair))
-		DamageExtReport (pDamage, DamageRegion (pDamage), (void *) pDamageExt);
-	}
-	else
-	{
-	    if (pParts)
-		REGION_COPY (prScreen, pParts, DamageRegion (pDamage));
-	    DamageEmpty (pDamage);
-	}
-    }
-    return (client->noClientException);
-}
-
-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.
-     */
-    REGION_TRANSLATE(pScreen, pRegion, pDrawable->x, pDrawable->y);
-    DamageRegionAppend(pDrawable, pRegion);
-    REGION_TRANSLATE(pScreen, pRegion, -pDrawable->x, -pDrawable->y);
-
-    return (client->noClientException);
-}
-
-/* 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);
-    }
-    xfree (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 (!dixRequestPrivate(DamageClientPrivateKey, 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;
-	DamageErrorBase = extEntry->errorBase;
-	EventSwapVector[DamageEventBase + XDamageNotify] =
-			(EventSwapPtr) SDamageNotifyEvent;
-    }
-}
+/*

+ * 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 int		DamageErrorBase;

+static RESTYPE		DamageExtType;

+static RESTYPE		DamageExtWinType;

+

+static int DamageClientPrivateKeyIndex;

+static DevPrivateKey DamageClientPrivateKey = &DamageClientPrivateKeyIndex;

+

+#define prScreen	screenInfo.screens[0]

+

+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.sequenceNumber = pClient->sequence;

+    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;

+	    if (!pClient->clientGone)

+		WriteEventsToClient (pClient, 1, (xEvent *) &ev);

+	}

+    }

+    else

+    {

+	ev.area.x = 0;

+	ev.area.y = 0;

+	ev.area.width = pDrawable->width;

+	ev.area.height = pDrawable->height;

+	if (!pClient->clientGone)

+	    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, REGION_RECTS(pRegion), REGION_NUM_RECTS(pRegion));

+	break;

+    case DamageReportBoundingBox:

+	DamageExtNotify (pDamageExt, REGION_EXTENTS(prScreen, 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(client->noClientException);

+}

+

+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 = xalloc (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)

+    {

+	xfree (pDamageExt);

+	return BadAlloc;

+    }

+    if (!AddResource (stuff->damage, DamageExtType, (pointer) pDamageExt))

+	return BadAlloc;

+

+    DamageRegister (pDamageExt->pDrawable, pDamageExt->pDamage);

+

+    if (pDrawable->type == DRAWABLE_WINDOW)

+    {

+	pRegion = &((WindowPtr) pDrawable)->borderClip;

+	DamageRegionAppend(pDrawable, pRegion);

+    }

+

+    return (client->noClientException);

+}

+

+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 (client->noClientException);

+}

+

+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)

+		REGION_INTERSECT (prScreen, pParts, DamageRegion (pDamage), pRepair);

+	    if (DamageSubtract (pDamage, pRepair))

+		DamageExtReport (pDamage, DamageRegion (pDamage), (void *) pDamageExt);

+	}

+	else

+	{

+	    if (pParts)

+		REGION_COPY (prScreen, pParts, DamageRegion (pDamage));

+	    DamageEmpty (pDamage);

+	}

+    }

+    return (client->noClientException);

+}

+

+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.

+     */

+    REGION_TRANSLATE(pScreen, pRegion, pDrawable->x, pDrawable->y);

+    DamageRegionAppend(pDrawable, pRegion);

+    REGION_TRANSLATE(pScreen, pRegion, -pDrawable->x, -pDrawable->y);

+

+    return (client->noClientException);

+}

+

+/* 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);

+    }

+    xfree (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 (!dixRequestPrivate(DamageClientPrivateKey, 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;

+	DamageErrorBase = extEntry->errorBase;

+	EventSwapVector[DamageEventBase + XDamageNotify] =

+			(EventSwapPtr) SDamageNotifyEvent;

+    }

+}