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-rw-r--r--xorg-server/damageext/damageext.c1049
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;
+ }
+}