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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/damageext/damageext.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/programs/Xserver/damageext/damageext.c')
-rwxr-xr-xnx-X11/programs/Xserver/damageext/damageext.c481
1 files changed, 481 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/damageext/damageext.c b/nx-X11/programs/Xserver/damageext/damageext.c
new file mode 100755
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+++ b/nx-X11/programs/Xserver/damageext/damageext.c
@@ -0,0 +1,481 @@
+/*
+ * $Id: damageext.c,v 1.6 2005/07/03 07:37:35 daniels Exp $
+ *
+ * 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"
+
+unsigned char DamageReqCode;
+int DamageEventBase;
+int DamageErrorBase;
+int DamageClientPrivateIndex;
+RESTYPE DamageExtType;
+RESTYPE DamageExtWinType;
+
+#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 ();
+#ifdef SMART_SCHEDULE
+ pClient->smart_priority = SMART_MAX_PRIORITY;
+#endif
+ }
+}
+
+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 < DAMAGE_MAJOR) {
+ rep.majorVersion = stuff->majorVersion;
+ rep.minorVersion = stuff->minorVersion;
+ } else {
+ rep.majorVersion = DAMAGE_MAJOR;
+ if (stuff->majorVersion == DAMAGE_MAJOR &&
+ stuff->minorVersion < DAMAGE_MINOR)
+ rep.minorVersion = stuff->minorVersion;
+ else
+ rep.minorVersion = DAMAGE_MINOR;
+ }
+ 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;
+
+ REQUEST(xDamageCreateReq);
+
+ REQUEST_SIZE_MATCH(xDamageCreateReq);
+ LEGAL_NEW_RESOURCE(stuff->damage, client);
+ SECURITY_VERIFY_DRAWABLE (pDrawable, stuff->drawable, client,
+ SecurityReadAccess);
+ 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;
+ DamageDamageRegion (pDrawable, pRegion);
+ }
+
+ return (client->noClientException);
+}
+
+static int
+ProcDamageDestroy (ClientPtr client)
+{
+ REQUEST(xDamageDestroyReq);
+ DamageExtPtr pDamageExt;
+
+ REQUEST_SIZE_MATCH(xDamageDestroyReq);
+ VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, SecurityWriteAccess);
+ 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, SecurityWriteAccess);
+ VERIFY_REGION_OR_NONE(pRepair, stuff->repair, client, SecurityWriteAccess);
+ VERIFY_REGION_OR_NONE(pParts, stuff->parts, client, SecurityWriteAccess);
+
+ 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);
+}
+
+/* Major version controls available requests */
+static const int version_requests[] = {
+ X_DamageQueryVersion, /* before client sends QueryVersion */
+ X_DamageSubtract, /* Version 1 */
+};
+
+#define NUM_VERSION_REQUESTS (sizeof (version_requests) / sizeof (version_requests[0]))
+
+int (*ProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
+/*************** Version 1 ******************/
+ ProcDamageQueryVersion,
+ ProcDamageCreate,
+ ProcDamageDestroy,
+ ProcDamageSubtract,
+};
+
+
+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);
+}
+
+int (*SProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
+/*************** Version 1 ******************/
+ SProcDamageQueryVersion,
+ SProcDamageCreate,
+ SProcDamageDestroy,
+ SProcDamageSubtract,
+};
+
+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;
+}
+
+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);
+ if (!DamageExtType)
+ return;
+
+ DamageExtWinType = CreateNewResourceType (FreeDamageExtWin);
+ if (!DamageExtWinType)
+ return;
+
+ DamageClientPrivateIndex = AllocateClientPrivateIndex ();
+ if (!AllocateClientPrivate (DamageClientPrivateIndex,
+ 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;
+ }
+}