svn merge -r588:HEAD ^/branches/released .

1 files changed, 1188 insertions, 1190 deletions

diff --git a/xorg-server/Xext/xvmain.c b/xorg-server/Xext/xvmain.c
index 3c2454b01..6dee19e6b 100644
--- a/xorg-server/Xext/xvmain.c
+++ b/xorg-server/Xext/xvmain.c
@@ -1,1190 +1,1188 @@
-/***********************************************************
-Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts,
-and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-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 names of Digital or MIT not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-******************************************************************/
-
-/*
-** File: 
-**
-**   xvmain.c --- Xv server extension main device independent module.
-**   
-** Author: 
-**
-**   David Carver (Digital Workstation Engineering/Project Athena)
-**
-** Revisions:
-**
-**   04.09.91 Carver
-**     - change: stop video always generates an event even when video
-**       wasn't active
-**
-**   29.08.91 Carver
-**     - change: unrealizing windows no longer preempts video
-**
-**   11.06.91 Carver
-**     - changed SetPortControl to SetPortAttribute
-**     - changed GetPortControl to GetPortAttribute
-**     - changed QueryBestSize
-**
-**   28.05.91 Carver
-**     - fixed Put and Get requests to not preempt operations to same drawable
-**
-**   15.05.91 Carver
-**     - version 2.0 upgrade
-**
-**   19.03.91 Carver
-**     - fixed Put and Get requests to honor grabbed ports.
-**     - fixed Video requests to update di structure with new drawable, and
-**       client after calling ddx.
-**
-**   24.01.91 Carver
-**     - version 1.4 upgrade
-**       
-** Notes:
-**
-**   Port structures reference client structures in a two different
-**   ways: when grabs, or video is active.  Each reference is encoded
-**   as fake client resources and thus when the client is goes away so
-**   does the reference (it is zeroed).  No other action is taken, so
-**   video doesn't necessarily stop.  It probably will as a result of
-**   other resources going away, but if a client starts video using
-**   none of its own resources, then the video will continue to play
-**   after the client disappears.
-**
-**
-*/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <string.h>
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include "misc.h"
-#include "os.h"
-#include "scrnintstr.h"
-#include "windowstr.h"
-#include "pixmapstr.h"
-#include "gc.h"
-#include "extnsionst.h"
-#include "dixstruct.h"
-#include "resource.h"
-#include "opaque.h"
-#include "input.h"
-
-#define GLOBAL
-
-#include <X11/extensions/Xv.h>
-#include <X11/extensions/Xvproto.h>
-#include "xvdix.h"
-
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-#include "xvdisp.h"
-
-static int XvScreenKeyIndex;
-static DevPrivateKey XvScreenKey = &XvScreenKeyIndex;
-unsigned long XvExtensionGeneration = 0;
-unsigned long XvScreenGeneration = 0;
-unsigned long XvResourceGeneration = 0;
-
-int XvReqCode;
-int XvEventBase;
-int XvErrorBase;
-
-unsigned long XvRTPort;
-unsigned long XvRTEncoding;
-unsigned long XvRTGrab;
-unsigned long XvRTVideoNotify;
-unsigned long XvRTVideoNotifyList;
-unsigned long XvRTPortNotify;
-
-
-
-/* EXTERNAL */
-
-extern XID clientErrorValue;
-
-static void WriteSwappedVideoNotifyEvent(xvEvent *, xvEvent *);
-static void WriteSwappedPortNotifyEvent(xvEvent *, xvEvent *);
-static Bool CreateResourceTypes(void);
-
-static Bool XvCloseScreen(int, ScreenPtr);
-static Bool XvDestroyPixmap(PixmapPtr);
-static Bool XvDestroyWindow(WindowPtr);
-static void XvResetProc(ExtensionEntry*);
-static int XvdiDestroyGrab(pointer, XID);
-static int XvdiDestroyEncoding(pointer, XID);
-static int XvdiDestroyVideoNotify(pointer, XID);
-static int XvdiDestroyPortNotify(pointer, XID);
-static int XvdiDestroyVideoNotifyList(pointer, XID);
-static int XvdiDestroyPort(pointer, XID);
-static int XvdiSendVideoNotify(XvPortPtr, DrawablePtr, int);
-
-
-
-
-/*
-** XvExtensionInit
-**
-**
-*/
-
-void
-XvExtensionInit(void)
-{
-  ExtensionEntry *extEntry;
-
-  /* LOOK TO SEE IF ANY SCREENS WERE INITIALIZED; IF NOT THEN
-     INIT GLOBAL VARIABLES SO THE EXTENSION CAN FUNCTION */
-  if (XvScreenGeneration != serverGeneration)
-    {
-      if (!CreateResourceTypes())
-	{
-	  ErrorF("XvExtensionInit: Unable to allocate resource types\n");
-	  return;
-	}
-#ifdef PANORAMIX
-        XineramaRegisterConnectionBlockCallback(XineramifyXv);
-#endif
-      XvScreenGeneration = serverGeneration;
-    }
-
-  if (XvExtensionGeneration != serverGeneration)
-    {
-      XvExtensionGeneration = serverGeneration;
-
-      extEntry = AddExtension(XvName, XvNumEvents, XvNumErrors, 
-			      ProcXvDispatch, SProcXvDispatch,
-			      XvResetProc, StandardMinorOpcode);
-      if (!extEntry) 
-	{
-	  FatalError("XvExtensionInit: AddExtensions failed\n");
-	}
-
-      XvReqCode = extEntry->base;
-      XvEventBase = extEntry->eventBase;
-      XvErrorBase = extEntry->errorBase;
-
-      EventSwapVector[XvEventBase+XvVideoNotify] = 
-	(EventSwapPtr)WriteSwappedVideoNotifyEvent;
-      EventSwapVector[XvEventBase+XvPortNotify] = 
-	(EventSwapPtr)WriteSwappedPortNotifyEvent;
-
-      (void)MakeAtom(XvName, strlen(XvName), xTrue);
-
-    }
-}
-
-static Bool
-CreateResourceTypes(void)
-
-{
-  
-  if (XvResourceGeneration == serverGeneration) return TRUE;
-
-  XvResourceGeneration = serverGeneration;
-
-  if (!(XvRTPort = CreateNewResourceType(XvdiDestroyPort, "XvRTPort")))
-    {
-      ErrorF("CreateResourceTypes: failed to allocate port resource.\n");
-      return FALSE;
-    }
-
-  if (!(XvRTGrab = CreateNewResourceType(XvdiDestroyGrab, "XvRTGrab")))
-    {
-      ErrorF("CreateResourceTypes: failed to allocate grab resource.\n");
-      return FALSE;
-    }
-
-  if (!(XvRTEncoding = CreateNewResourceType(XvdiDestroyEncoding,
-					     "XvRTEncoding")))
-    {
-      ErrorF("CreateResourceTypes: failed to allocate encoding resource.\n");
-      return FALSE;
-    }
-
-  if (!(XvRTVideoNotify = CreateNewResourceType(XvdiDestroyVideoNotify,
-						"XvRTVideoNotify")))
-    {
-      ErrorF("CreateResourceTypes: failed to allocate video notify resource.\n");
-      return FALSE;
-    }
-
-  if (!(XvRTVideoNotifyList = CreateNewResourceType(XvdiDestroyVideoNotifyList,
-						    "XvRTVideoNotifyList")))
-    {
-      ErrorF("CreateResourceTypes: failed to allocate video notify list resource.\n");
-      return FALSE;
-    }
-
-  if (!(XvRTPortNotify = CreateNewResourceType(XvdiDestroyPortNotify,
-					       "XvRTPortNotify")))
-    {
-      ErrorF("CreateResourceTypes: failed to allocate port notify resource.\n");
-      return FALSE;
-    }
-
-  return TRUE;
-
-}
-
-int
-XvScreenInit(ScreenPtr pScreen)
-{
-  XvScreenPtr pxvs;
-
-  if (XvScreenGeneration != serverGeneration)
-    {
-      if (!CreateResourceTypes())
-	{
-	  ErrorF("XvScreenInit: Unable to allocate resource types\n");
-	  return BadAlloc;
-	}
-#ifdef PANORAMIX
-        XineramaRegisterConnectionBlockCallback(XineramifyXv);
-#endif
-      XvScreenGeneration = serverGeneration; 
-    }
-
-  if (dixLookupPrivate(&pScreen->devPrivates, XvScreenKey))
-    {
-      ErrorF("XvScreenInit: screen devPrivates ptr non-NULL before init\n");
-    }
-
-  /* ALLOCATE SCREEN PRIVATE RECORD */
-  
-  pxvs = xcalloc (1,sizeof (XvScreenRec));
-  if (!pxvs)
-    {
-      ErrorF("XvScreenInit: Unable to allocate screen private structure\n");
-      return BadAlloc;
-    }
-
-  dixSetPrivate(&pScreen->devPrivates, XvScreenKey, pxvs);
-
-  
-  pxvs->DestroyPixmap = pScreen->DestroyPixmap;
-  pxvs->DestroyWindow = pScreen->DestroyWindow;
-  pxvs->CloseScreen = pScreen->CloseScreen;
-  
-  pScreen->DestroyPixmap = XvDestroyPixmap;
-  pScreen->DestroyWindow = XvDestroyWindow;
-  pScreen->CloseScreen = XvCloseScreen;
-
-  return Success;
-}
-
-static Bool
-XvCloseScreen(
-  int ii,
-  ScreenPtr pScreen
-){
-
-  XvScreenPtr pxvs;
-
-  pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);
-
-  pScreen->DestroyPixmap = pxvs->DestroyPixmap;
-  pScreen->DestroyWindow = pxvs->DestroyWindow;
-  pScreen->CloseScreen = pxvs->CloseScreen;
-
-  if (pxvs->ddCloseScreen) (* pxvs->ddCloseScreen)(ii, pScreen); 
-
-  xfree(pxvs);
-
-  dixSetPrivate(&pScreen->devPrivates, XvScreenKey, NULL);
-
-  return (*pScreen->CloseScreen)(ii, pScreen);
-}
-
-static void
-XvResetProc(ExtensionEntry* extEntry)
-{
-    XvResetProcVector();
-}
-
-DevPrivateKey
-XvGetScreenKey(void)
-{
-    return XvScreenKey;
-}
-
-unsigned long
-XvGetRTPort(void)
-{
-  return XvRTPort;
-}
-
-static Bool
-XvDestroyPixmap(PixmapPtr pPix)
-{
-  Bool status;
-  ScreenPtr pScreen;
-  XvScreenPtr pxvs;
-  XvAdaptorPtr pa;
-  int na;
-  XvPortPtr pp;
-  int np;
-
-  pScreen = pPix->drawable.pScreen;
-
-  SCREEN_PROLOGUE(pScreen, DestroyPixmap);
-
-  pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);
-
-  /* CHECK TO SEE IF THIS PORT IS IN USE */
-
-  pa = pxvs->pAdaptors;
-  na = pxvs->nAdaptors;
-  while (na--)
-    {
-      np = pa->nPorts;
-      pp = pa->pPorts;
-
-      while (np--)
-	{
-	  if (pp->pDraw == (DrawablePtr)pPix)
-	    {
-	      XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted);
-
-	      (void)(* pp->pAdaptor->ddStopVideo)(NULL, pp, pp->pDraw);
-
-	      pp->pDraw = NULL;
-	      pp->client = NULL;
-	      pp->time = currentTime;
-	    }
-	  pp++;
-	}
-      pa++;
-    }
-  
-  status = (* pScreen->DestroyPixmap)(pPix);
-
-  SCREEN_EPILOGUE(pScreen, DestroyPixmap, XvDestroyPixmap);
-
-  return status;
-
-}
-
-static Bool
-XvDestroyWindow(WindowPtr pWin)
-{
-  Bool status;
-  ScreenPtr pScreen;
-  XvScreenPtr pxvs;
-  XvAdaptorPtr pa;
-  int na;
-  XvPortPtr pp;
-  int np;
-
-  pScreen = pWin->drawable.pScreen;
-
-  SCREEN_PROLOGUE(pScreen, DestroyWindow);
-
-  pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);
-
-  /* CHECK TO SEE IF THIS PORT IS IN USE */
-
-  pa = pxvs->pAdaptors;
-  na = pxvs->nAdaptors;
-  while (na--)
-    {
-      np = pa->nPorts;
-      pp = pa->pPorts;
-
-      while (np--)
-	{
-	  if (pp->pDraw == (DrawablePtr)pWin)
-	    {
-	      XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted);
-
-	      (void)(* pp->pAdaptor->ddStopVideo)(NULL, pp, pp->pDraw);
-
-	      pp->pDraw = NULL;
-	      pp->client = NULL;
-	      pp->time = currentTime;
-	    }
-	  pp++;
-	}
-      pa++;
-    }
-
-  
-  status = (* pScreen->DestroyWindow)(pWin);
-
-  SCREEN_EPILOGUE(pScreen, DestroyWindow, XvDestroyWindow);
-
-  return status;
-
-}
-
-/* The XvdiVideoStopped procedure is a hook for the device dependent layer.
-   It provides a way for the dd layer to inform the di layer that video has
-   stopped in a port for reasons that the di layer had no control over; note
-   that it doesn't call back into the dd layer */
-
-int
-XvdiVideoStopped(XvPortPtr pPort, int reason)
-{
-  
-  /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */
-
-  if (!pPort->pDraw) return Success;
-
-  XvdiSendVideoNotify(pPort, pPort->pDraw, reason);
-
-  pPort->pDraw = NULL;
-  pPort->client = NULL;
-  pPort->time = currentTime;
-
-  return Success;
-
-}
-
-static int 
-XvdiDestroyPort(pointer pPort, XID id)
-{
-  return (* ((XvPortPtr)pPort)->pAdaptor->ddFreePort)(pPort);
-}
-
-static int
-XvdiDestroyGrab(pointer pGrab, XID id)
-{
-  ((XvGrabPtr)pGrab)->client = NULL;
-  return Success;
-}
-
-static int
-XvdiDestroyVideoNotify(pointer pn, XID id)
-{
-  /* JUST CLEAR OUT THE client POINTER FIELD */
-
-  ((XvVideoNotifyPtr)pn)->client = NULL;
-  return Success;
-}
-
-static int
-XvdiDestroyPortNotify(pointer pn, XID id)
-{
-  /* JUST CLEAR OUT THE client POINTER FIELD */
-
-  ((XvPortNotifyPtr)pn)->client = NULL;
-  return Success;
-}
-
-static int
-XvdiDestroyVideoNotifyList(pointer pn, XID id)
-{
-  XvVideoNotifyPtr npn,cpn;
-
-  /* ACTUALLY DESTROY THE NOTITY LIST */
-
-  cpn = (XvVideoNotifyPtr)pn;
-
-  while (cpn)
-    {
-      npn = cpn->next;
-      if (cpn->client) FreeResource(cpn->id, XvRTVideoNotify);
-      xfree(cpn);
-      cpn = npn;
-    }
-  return Success;
-}
-
-static int
-XvdiDestroyEncoding(pointer value, XID id)
-{
-  return Success;
-}
-
-static int
-XvdiSendVideoNotify(XvPortPtr pPort, DrawablePtr pDraw, int reason)
-{
-  xvEvent event;
-  XvVideoNotifyPtr pn;
-
-  dixLookupResourceByType((pointer *)&pn, pDraw->id, XvRTVideoNotifyList,
-			  serverClient, DixReadAccess);
-
-  while (pn) 
-    {
-      if (pn->client)
-	{
-	  event.u.u.type = XvEventBase + XvVideoNotify;
-	  event.u.u.sequenceNumber = pn->client->sequence;
-	  event.u.videoNotify.time = currentTime.milliseconds;
-	  event.u.videoNotify.drawable = pDraw->id;
-	  event.u.videoNotify.port = pPort->id;
-	  event.u.videoNotify.reason = reason;
-	  TryClientEvents(pn->client, NULL, (xEventPtr)&event, 1,
-                          NoEventMask, NoEventMask, NullGrab);
-	}
-      pn = pn->next;
-    }
-
-  return Success;
-
-}
-
-
-int
-XvdiSendPortNotify(
-  XvPortPtr pPort,
-  Atom attribute,
-  INT32 value
-){
-  xvEvent event;
-  XvPortNotifyPtr pn;
-
-  pn = pPort->pNotify;
-
-  while (pn) 
-    {
-      if (pn->client)
-	{
-	  event.u.u.type = XvEventBase + XvPortNotify;
-	  event.u.u.sequenceNumber = pn->client->sequence;
-	  event.u.portNotify.time = currentTime.milliseconds;
-	  event.u.portNotify.port = pPort->id;
-	  event.u.portNotify.attribute = attribute;
-	  event.u.portNotify.value = value;
-	  TryClientEvents(pn->client, NULL, (xEventPtr)&event, 1,
-                          NoEventMask, NoEventMask, NullGrab);
-	}
-      pn = pn->next;
-    }
-
-  return Success;
-
-}
-
-
-#define CHECK_SIZE(dw, dh, sw, sh) {                                  \
-  if(!dw || !dh || !sw || !sh)  return Success;                       \
-  /* The region code will break these if they are too large */        \
-  if((dw > 32767) || (dh > 32767) || (sw > 32767) || (sh > 32767))    \
-        return BadValue;                                              \
-}
-
-
-int
-XvdiPutVideo(   
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y, 
-   CARD16 vid_w, CARD16 vid_h, 
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  DrawablePtr pOldDraw;
-
-  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
-
-  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */
-
-  UpdateCurrentTime();
-
-  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
-     INFORM CLIENT OF ITS FAILURE */
-
-  if (pPort->grab.client && (pPort->grab.client != client))
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvBusy);
-      return Success;
-    }
-
-  /* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED
-     EVENTS TO ANY CLIENTS WHO WANT THEM */
-
-  pOldDraw = pPort->pDraw;
-  if ((pOldDraw) && (pOldDraw != pDraw))
-    {
-      XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);
-    }
-
-  (void) (* pPort->pAdaptor->ddPutVideo)(client, pDraw, pPort, pGC,
-					   vid_x, vid_y, vid_w, vid_h, 
-					   drw_x, drw_y, drw_w, drw_h);
-
-  if ((pPort->pDraw) && (pOldDraw != pDraw))
-    {
-      pPort->client = client;
-      XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted);
-    }
-
-  pPort->time = currentTime;
-
-  return (Success);
-
-}
-
-int
-XvdiPutStill(   
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y, 
-   CARD16 vid_w, CARD16 vid_h, 
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  int status;
-
-  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
-
-  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */
-
-  UpdateCurrentTime();
-
-  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
-     INFORM CLIENT OF ITS FAILURE */
-
-  if (pPort->grab.client && (pPort->grab.client != client))
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvBusy);
-      return Success;
-    }
-
-  pPort->time = currentTime;
-
-  status = (* pPort->pAdaptor->ddPutStill)(client, pDraw, pPort, pGC, 
-					   vid_x, vid_y, vid_w, vid_h, 
-					   drw_x, drw_y, drw_w, drw_h);
-
-  return status;
-
-}
-
-int
-XvdiPutImage(   
-   ClientPtr client, 
-   DrawablePtr pDraw, 
-   XvPortPtr pPort, 
-   GCPtr pGC,
-   INT16 src_x, INT16 src_y, 
-   CARD16 src_w, CARD16 src_h, 
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h,
-   XvImagePtr image,
-   unsigned char* data,
-   Bool sync,
-   CARD16 width, CARD16 height
-){
-  CHECK_SIZE(drw_w, drw_h, src_w, src_h);
-
-  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */
-
-  UpdateCurrentTime();
-
-  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
-     INFORM CLIENT OF ITS FAILURE */
-
-  if (pPort->grab.client && (pPort->grab.client != client))
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvBusy);
-      return Success;
-    }
-
-  pPort->time = currentTime;
-
-  return (* pPort->pAdaptor->ddPutImage)(client, pDraw, pPort, pGC, 
-					   src_x, src_y, src_w, src_h, 
-					   drw_x, drw_y, drw_w, drw_h,
-					   image, data, sync, width, height);
-}
-
-
-int
-XvdiGetVideo(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y, 
-   CARD16 vid_w, CARD16 vid_h, 
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  DrawablePtr pOldDraw;
-
-  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
-
-  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */
-
-  UpdateCurrentTime();
-
-  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
-     INFORM CLIENT OF ITS FAILURE */
-
-  if (pPort->grab.client && (pPort->grab.client != client))
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvBusy);
-      return Success;
-    }
-
-  /* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED
-     EVENTS TO ANY CLIENTS WHO WANT THEM */
-
-  pOldDraw = pPort->pDraw;
-  if ((pOldDraw) && (pOldDraw != pDraw))
-    {
-      XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);
-    }
-
-  (void) (* pPort->pAdaptor->ddGetVideo)(client, pDraw, pPort, pGC,
-					   vid_x, vid_y, vid_w, vid_h, 
-					   drw_x, drw_y, drw_w, drw_h);
-
-  if ((pPort->pDraw) && (pOldDraw != pDraw))
-    {
-      pPort->client = client;
-      XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted);
-    }
-
-  pPort->time = currentTime;
-
-  return (Success);
-
-}
-
-int
-XvdiGetStill(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y, 
-   CARD16 vid_w, CARD16 vid_h, 
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  int status;
-
-  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
-
-  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */
-
-  UpdateCurrentTime();
-
-  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
-     INFORM CLIENT OF ITS FAILURE */
-
-  if (pPort->grab.client && (pPort->grab.client != client))
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvBusy);
-      return Success;
-    }
-
-  status = (* pPort->pAdaptor->ddGetStill)(client, pDraw, pPort, pGC, 
-					   vid_x, vid_y, vid_w, vid_h, 
-					   drw_x, drw_y, drw_w, drw_h);
-
-  pPort->time = currentTime;
-
-  return status;
-
-}
-
-int
-XvdiGrabPort(
-   ClientPtr client,
-   XvPortPtr pPort,
-   Time ctime,
-   int *p_result
-){
-  unsigned long id;
-  TimeStamp time;
-
-  UpdateCurrentTime();
-  time = ClientTimeToServerTime(ctime);
-
-  if (pPort->grab.client && (client != pPort->grab.client))
-    {
-      *p_result = XvAlreadyGrabbed;
-      return Success;
-    }
-
-  if ((CompareTimeStamps(time, currentTime) == LATER) ||
-      (CompareTimeStamps(time, pPort->time) == EARLIER))
-    {
-      *p_result = XvInvalidTime;
-      return Success;
-    }
-
-  if (client == pPort->grab.client)
-    {
-      *p_result = Success;
-      return Success;
-    }
-
-  id = FakeClientID(client->index);
-
-  if (!AddResource(id, XvRTGrab, &pPort->grab))
-    {
-      return BadAlloc;
-    }
-
-  /* IF THERE IS ACTIVE VIDEO THEN STOP IT */
-
-  if ((pPort->pDraw) && (client != pPort->client))
-    {
-      XvdiStopVideo(NULL, pPort, pPort->pDraw);
-    }
-
-  pPort->grab.client = client;
-  pPort->grab.id = id;
-
-  pPort->time = currentTime;
-
-  *p_result = Success;
-
-  return Success;
-
-}
-
-int
-XvdiUngrabPort(
-  ClientPtr client,
-  XvPortPtr pPort,
-  Time ctime
-){
-  TimeStamp time;
-
-  UpdateCurrentTime();
-  time = ClientTimeToServerTime(ctime);
-
-  if ((!pPort->grab.client) || (client != pPort->grab.client))
-    {
-      return Success;
-    }
-
-  if ((CompareTimeStamps(time, currentTime) == LATER) ||
-      (CompareTimeStamps(time, pPort->time) == EARLIER))
-    {
-      return Success;
-    }
-
-  /* FREE THE GRAB RESOURCE; AND SET THE GRAB CLIENT TO NULL */
-
-  FreeResource(pPort->grab.id, XvRTGrab);
-  pPort->grab.client = NULL;
-
-  pPort->time = currentTime;
-
-  return Success;
-
-}
-
-
-int
-XvdiSelectVideoNotify(
-  ClientPtr client,
-  DrawablePtr pDraw,
-  BOOL onoff
-){
-  XvVideoNotifyPtr pn,tpn,fpn;
-  int rc;
-
-  /* FIND VideoNotify LIST */
-
-  rc = dixLookupResourceByType((pointer *)&pn, pDraw->id, XvRTVideoNotifyList,
-			       client, DixWriteAccess);
-  if (rc != Success && rc != BadValue)
-      return rc;
-
-  /* IF ONE DONES'T EXIST AND NO MASK, THEN JUST RETURN */
-
-  if (!onoff && !pn) return Success;
-
-  /* IF ONE DOESN'T EXIST CREATE IT AND ADD A RESOURCE SO THAT THE LIST
-     WILL BE DELETED WHEN THE DRAWABLE IS DESTROYED */
-
-  if (!pn) 
-    {
-      if (!(tpn = xalloc(sizeof(XvVideoNotifyRec))))
-	return BadAlloc;
-      tpn->next = NULL;
-      if (!AddResource(pDraw->id, XvRTVideoNotifyList, tpn))
-	{
-	  xfree(tpn);
-	  return BadAlloc;
-	}
-    }
-  else
-    {
-      /* LOOK TO SEE IF ENTRY ALREADY EXISTS */
-
-      fpn = NULL;
-      tpn = pn;
-      while (tpn)
-	{
-	  if (tpn->client == client) 
-	    {
-	      if (!onoff) tpn->client = NULL;
-	      return Success;
-	    }
-	  if (!tpn->client) fpn = tpn; /* TAKE NOTE OF FREE ENTRY */
-	  tpn = tpn->next;
-	}
-
-      /* IF TUNNING OFF, THEN JUST RETURN */
-
-      if (!onoff) return Success;
-
-      /* IF ONE ISN'T FOUND THEN ALLOCATE ONE AND LINK IT INTO THE LIST */
-
-      if (fpn)
-	{
-	  tpn = fpn;
-	}
-      else
-	{
-	  if (!(tpn = xalloc(sizeof(XvVideoNotifyRec))))
-	    return BadAlloc;
-	  tpn->next = pn->next;
-	  pn->next = tpn;
-	}
-    }
-
-  /* INIT CLIENT PTR IN CASE WE CAN'T ADD RESOURCE */
-  /* ADD RESOURCE SO THAT IF CLIENT EXITS THE CLIENT PTR WILL BE CLEARED */
-
-  tpn->client = NULL;
-  tpn->id = FakeClientID(client->index);
-  AddResource(tpn->id, XvRTVideoNotify, tpn);
-
-  tpn->client = client;
-  return Success;
-
-}
-
-int
-XvdiSelectPortNotify(
-   ClientPtr client,
-   XvPortPtr pPort,
-   BOOL onoff
-){
-  XvPortNotifyPtr pn,tpn;
-
-  /* SEE IF CLIENT IS ALREADY IN LIST */
-
-  tpn = NULL;
-  pn = pPort->pNotify;
-  while (pn)
-    {
-      if (!pn->client) tpn = pn; /* TAKE NOTE OF FREE ENTRY */
-      if (pn->client == client) break;
-      pn = pn->next;
-    }
-
-  /* IS THE CLIENT ALREADY ON THE LIST? */
-
-  if (pn)
-    {
-      /* REMOVE IT? */
-
-      if (!onoff)
-	{
-	  pn->client = NULL;
-	  FreeResource(pn->id, XvRTPortNotify);
-	}
-
-      return Success;
-    }
-
-  /* DIDN'T FIND IT; SO REUSE LIST ELEMENT IF ONE IS FREE OTHERWISE 
-     CREATE A NEW ONE AND ADD IT TO THE BEGINNING OF THE LIST */
-
-  if (!tpn)
-    {
-      if (!(tpn = xalloc(sizeof(XvPortNotifyRec))))
-	return BadAlloc;
-      tpn->next = pPort->pNotify;
-      pPort->pNotify = tpn;
-    }
-
-  tpn->client = client;
-  tpn->id = FakeClientID(client->index);
-  AddResource(tpn->id, XvRTPortNotify, tpn);
-
-  return Success;
-
-}
-
-int
-XvdiStopVideo(
-  ClientPtr client,
-  XvPortPtr pPort,
-  DrawablePtr pDraw
-){
-  int status;
-
-  /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */
-
-  if (!pPort->pDraw || (pPort->pDraw != pDraw)) 
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvStopped);
-      return Success;
-    }
-
-  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
-     INFORM CLIENT OF ITS FAILURE */
-
-  if ((client) && (pPort->grab.client) && (pPort->grab.client != client))
-    {
-      XvdiSendVideoNotify(pPort, pDraw, XvBusy);
-      return Success;
-    }
-
-  XvdiSendVideoNotify(pPort, pDraw, XvStopped);
-
-  status = (* pPort->pAdaptor->ddStopVideo)(client, pPort, pDraw);
-
-  pPort->pDraw = NULL;
-  pPort->client = (ClientPtr)client;
-  pPort->time = currentTime;
-
-  return status;
-
-}
-
-int
-XvdiPreemptVideo(
-  ClientPtr client,
-  XvPortPtr pPort,
-  DrawablePtr pDraw
-){
-  int status;
-
-  /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */
-
-  if (!pPort->pDraw || (pPort->pDraw != pDraw)) return Success;
-
-  XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);
-
-  status = (* pPort->pAdaptor->ddStopVideo)(client, pPort, pPort->pDraw);
-
-  pPort->pDraw = NULL;
-  pPort->client = (ClientPtr)client;
-  pPort->time = currentTime;
-
-  return status;
-
-}
-
-int
-XvdiMatchPort(
-  XvPortPtr pPort,
-  DrawablePtr pDraw
-){
-
-  XvAdaptorPtr pa;
-  XvFormatPtr pf;
-  int nf;
-
-  pa = pPort->pAdaptor;
-
-  if (pa->pScreen != pDraw->pScreen) return BadMatch;
-
-  nf = pa->nFormats;
-  pf = pa->pFormats;
-
-  while (nf--)
-    {
-      if ((pf->depth == pDraw->depth) 
-#if 0
-         && ((pDraw->type == DRAWABLE_PIXMAP) || 
-	   (wVisual(((WindowPtr)pDraw)) == pf->visual))
-#endif
-	)
-	return Success;
-      pf++;
-    }
-
-  return BadMatch;
-
-}
-
-int
-XvdiSetPortAttribute(
-  ClientPtr client,
-  XvPortPtr pPort,
-  Atom attribute,
-  INT32 value
-){
-
-    XvdiSendPortNotify(pPort, attribute, value);
-
-  return 
-    (* pPort->pAdaptor->ddSetPortAttribute)(client, pPort, attribute, value);
-
-}
-
-int
-XvdiGetPortAttribute(
-  ClientPtr client,
-  XvPortPtr pPort,
-  Atom attribute,
-  INT32 *p_value
-){
-
-  return 
-    (* pPort->pAdaptor->ddGetPortAttribute)(client, pPort, attribute, p_value);
-
-}
-
-static void
-WriteSwappedVideoNotifyEvent(xvEvent *from, xvEvent *to)
-
-{
-
-  to->u.u.type = from->u.u.type;
-  to->u.u.detail = from->u.u.detail;
-  cpswaps(from->u.videoNotify.sequenceNumber, 
-	  to->u.videoNotify.sequenceNumber);
-  cpswapl(from->u.videoNotify.time, to->u.videoNotify.time);
-  cpswapl(from->u.videoNotify.drawable, to->u.videoNotify.drawable);
-  cpswapl(from->u.videoNotify.port, to->u.videoNotify.port);
-
-}
-
-static void
-WriteSwappedPortNotifyEvent(xvEvent *from, xvEvent *to)
-
-{
-
-  to->u.u.type = from->u.u.type;
-  to->u.u.detail = from->u.u.detail;
-  cpswaps(from->u.portNotify.sequenceNumber, to->u.portNotify.sequenceNumber);
-  cpswapl(from->u.portNotify.time, to->u.portNotify.time);
-  cpswapl(from->u.portNotify.port, to->u.portNotify.port);
-  cpswapl(from->u.portNotify.value, to->u.portNotify.value);
-
-}
+/***********************************************************

+Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts,

+and the Massachusetts Institute of Technology, Cambridge, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+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 names of Digital or MIT not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL 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.

+

+******************************************************************/

+

+/*

+** File: 

+**

+**   xvmain.c --- Xv server extension main device independent module.

+**   

+** Author: 

+**

+**   David Carver (Digital Workstation Engineering/Project Athena)

+**

+** Revisions:

+**

+**   04.09.91 Carver

+**     - change: stop video always generates an event even when video

+**       wasn't active

+**

+**   29.08.91 Carver

+**     - change: unrealizing windows no longer preempts video

+**

+**   11.06.91 Carver

+**     - changed SetPortControl to SetPortAttribute

+**     - changed GetPortControl to GetPortAttribute

+**     - changed QueryBestSize

+**

+**   28.05.91 Carver

+**     - fixed Put and Get requests to not preempt operations to same drawable

+**

+**   15.05.91 Carver

+**     - version 2.0 upgrade

+**

+**   19.03.91 Carver

+**     - fixed Put and Get requests to honor grabbed ports.

+**     - fixed Video requests to update di structure with new drawable, and

+**       client after calling ddx.

+**

+**   24.01.91 Carver

+**     - version 1.4 upgrade

+**       

+** Notes:

+**

+**   Port structures reference client structures in a two different

+**   ways: when grabs, or video is active.  Each reference is encoded

+**   as fake client resources and thus when the client is goes away so

+**   does the reference (it is zeroed).  No other action is taken, so

+**   video doesn't necessarily stop.  It probably will as a result of

+**   other resources going away, but if a client starts video using

+**   none of its own resources, then the video will continue to play

+**   after the client disappears.

+**

+**

+*/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <string.h>

+

+#include <X11/X.h>

+#include <X11/Xproto.h>

+#include "misc.h"

+#include "os.h"

+#include "scrnintstr.h"

+#include "windowstr.h"

+#include "pixmapstr.h"

+#include "gc.h"

+#include "extnsionst.h"

+#include "dixstruct.h"

+#include "resource.h"

+#include "opaque.h"

+#include "input.h"

+

+#define GLOBAL

+

+#include <X11/extensions/Xv.h>

+#include <X11/extensions/Xvproto.h>

+#include "xvdix.h"

+

+#ifdef PANORAMIX

+#include "panoramiX.h"

+#include "panoramiXsrv.h"

+#endif

+#include "xvdisp.h"

+

+static int XvScreenKeyIndex;

+static DevPrivateKey XvScreenKey = &XvScreenKeyIndex;

+unsigned long XvExtensionGeneration = 0;

+unsigned long XvScreenGeneration = 0;

+unsigned long XvResourceGeneration = 0;

+

+int XvReqCode;

+int XvEventBase;

+int XvErrorBase;

+

+unsigned long XvRTPort;

+unsigned long XvRTEncoding;

+unsigned long XvRTGrab;

+unsigned long XvRTVideoNotify;

+unsigned long XvRTVideoNotifyList;

+unsigned long XvRTPortNotify;

+

+

+

+/* EXTERNAL */

+

+static void WriteSwappedVideoNotifyEvent(xvEvent *, xvEvent *);

+static void WriteSwappedPortNotifyEvent(xvEvent *, xvEvent *);

+static Bool CreateResourceTypes(void);

+

+static Bool XvCloseScreen(int, ScreenPtr);

+static Bool XvDestroyPixmap(PixmapPtr);

+static Bool XvDestroyWindow(WindowPtr);

+static void XvResetProc(ExtensionEntry*);

+static int XvdiDestroyGrab(pointer, XID);

+static int XvdiDestroyEncoding(pointer, XID);

+static int XvdiDestroyVideoNotify(pointer, XID);

+static int XvdiDestroyPortNotify(pointer, XID);

+static int XvdiDestroyVideoNotifyList(pointer, XID);

+static int XvdiDestroyPort(pointer, XID);

+static int XvdiSendVideoNotify(XvPortPtr, DrawablePtr, int);

+

+

+

+

+/*

+** XvExtensionInit

+**

+**

+*/

+

+void

+XvExtensionInit(void)

+{

+  ExtensionEntry *extEntry;

+

+  /* LOOK TO SEE IF ANY SCREENS WERE INITIALIZED; IF NOT THEN

+     INIT GLOBAL VARIABLES SO THE EXTENSION CAN FUNCTION */

+  if (XvScreenGeneration != serverGeneration)

+    {

+      if (!CreateResourceTypes())

+	{

+	  ErrorF("XvExtensionInit: Unable to allocate resource types\n");

+	  return;

+	}

+#ifdef PANORAMIX

+        XineramaRegisterConnectionBlockCallback(XineramifyXv);

+#endif

+      XvScreenGeneration = serverGeneration;

+    }

+

+  if (XvExtensionGeneration != serverGeneration)

+    {

+      XvExtensionGeneration = serverGeneration;

+

+      extEntry = AddExtension(XvName, XvNumEvents, XvNumErrors, 

+			      ProcXvDispatch, SProcXvDispatch,

+			      XvResetProc, StandardMinorOpcode);

+      if (!extEntry) 

+	{

+	  FatalError("XvExtensionInit: AddExtensions failed\n");

+	}

+

+      XvReqCode = extEntry->base;

+      XvEventBase = extEntry->eventBase;

+      XvErrorBase = extEntry->errorBase;

+

+      EventSwapVector[XvEventBase+XvVideoNotify] = 

+	(EventSwapPtr)WriteSwappedVideoNotifyEvent;

+      EventSwapVector[XvEventBase+XvPortNotify] = 

+	(EventSwapPtr)WriteSwappedPortNotifyEvent;

+

+      (void)MakeAtom(XvName, strlen(XvName), xTrue);

+

+    }

+}

+

+static Bool

+CreateResourceTypes(void)

+

+{

+  

+  if (XvResourceGeneration == serverGeneration) return TRUE;

+

+  XvResourceGeneration = serverGeneration;

+

+  if (!(XvRTPort = CreateNewResourceType(XvdiDestroyPort, "XvRTPort")))

+    {

+      ErrorF("CreateResourceTypes: failed to allocate port resource.\n");

+      return FALSE;

+    }

+

+  if (!(XvRTGrab = CreateNewResourceType(XvdiDestroyGrab, "XvRTGrab")))

+    {

+      ErrorF("CreateResourceTypes: failed to allocate grab resource.\n");

+      return FALSE;

+    }

+

+  if (!(XvRTEncoding = CreateNewResourceType(XvdiDestroyEncoding,

+					     "XvRTEncoding")))

+    {

+      ErrorF("CreateResourceTypes: failed to allocate encoding resource.\n");

+      return FALSE;

+    }

+

+  if (!(XvRTVideoNotify = CreateNewResourceType(XvdiDestroyVideoNotify,

+						"XvRTVideoNotify")))

+    {

+      ErrorF("CreateResourceTypes: failed to allocate video notify resource.\n");

+      return FALSE;

+    }

+

+  if (!(XvRTVideoNotifyList = CreateNewResourceType(XvdiDestroyVideoNotifyList,

+						    "XvRTVideoNotifyList")))

+    {

+      ErrorF("CreateResourceTypes: failed to allocate video notify list resource.\n");

+      return FALSE;

+    }

+

+  if (!(XvRTPortNotify = CreateNewResourceType(XvdiDestroyPortNotify,

+					       "XvRTPortNotify")))

+    {

+      ErrorF("CreateResourceTypes: failed to allocate port notify resource.\n");

+      return FALSE;

+    }

+

+  return TRUE;

+

+}

+

+int

+XvScreenInit(ScreenPtr pScreen)

+{

+  XvScreenPtr pxvs;

+

+  if (XvScreenGeneration != serverGeneration)

+    {

+      if (!CreateResourceTypes())

+	{

+	  ErrorF("XvScreenInit: Unable to allocate resource types\n");

+	  return BadAlloc;

+	}

+#ifdef PANORAMIX

+        XineramaRegisterConnectionBlockCallback(XineramifyXv);

+#endif

+      XvScreenGeneration = serverGeneration; 

+    }

+

+  if (dixLookupPrivate(&pScreen->devPrivates, XvScreenKey))

+    {

+      ErrorF("XvScreenInit: screen devPrivates ptr non-NULL before init\n");

+    }

+

+  /* ALLOCATE SCREEN PRIVATE RECORD */

+  

+  pxvs = calloc (1,sizeof (XvScreenRec));

+  if (!pxvs)

+    {

+      ErrorF("XvScreenInit: Unable to allocate screen private structure\n");

+      return BadAlloc;

+    }

+

+  dixSetPrivate(&pScreen->devPrivates, XvScreenKey, pxvs);

+

+  

+  pxvs->DestroyPixmap = pScreen->DestroyPixmap;

+  pxvs->DestroyWindow = pScreen->DestroyWindow;

+  pxvs->CloseScreen = pScreen->CloseScreen;

+  

+  pScreen->DestroyPixmap = XvDestroyPixmap;

+  pScreen->DestroyWindow = XvDestroyWindow;

+  pScreen->CloseScreen = XvCloseScreen;

+

+  return Success;

+}

+

+static Bool

+XvCloseScreen(

+  int ii,

+  ScreenPtr pScreen

+){

+

+  XvScreenPtr pxvs;

+

+  pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);

+

+  pScreen->DestroyPixmap = pxvs->DestroyPixmap;

+  pScreen->DestroyWindow = pxvs->DestroyWindow;

+  pScreen->CloseScreen = pxvs->CloseScreen;

+

+  if (pxvs->ddCloseScreen) (* pxvs->ddCloseScreen)(ii, pScreen); 

+

+  free(pxvs);

+

+  dixSetPrivate(&pScreen->devPrivates, XvScreenKey, NULL);

+

+  return (*pScreen->CloseScreen)(ii, pScreen);

+}

+

+static void

+XvResetProc(ExtensionEntry* extEntry)

+{

+    XvResetProcVector();

+}

+

+DevPrivateKey

+XvGetScreenKey(void)

+{

+    return XvScreenKey;

+}

+

+unsigned long

+XvGetRTPort(void)

+{

+  return XvRTPort;

+}

+

+static Bool

+XvDestroyPixmap(PixmapPtr pPix)

+{

+  Bool status;

+  ScreenPtr pScreen;

+  XvScreenPtr pxvs;

+  XvAdaptorPtr pa;

+  int na;

+  XvPortPtr pp;

+  int np;

+

+  pScreen = pPix->drawable.pScreen;

+

+  SCREEN_PROLOGUE(pScreen, DestroyPixmap);

+

+  pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);

+

+  /* CHECK TO SEE IF THIS PORT IS IN USE */

+

+  pa = pxvs->pAdaptors;

+  na = pxvs->nAdaptors;

+  while (na--)

+    {

+      np = pa->nPorts;

+      pp = pa->pPorts;

+

+      while (np--)

+	{

+	  if (pp->pDraw == (DrawablePtr)pPix)

+	    {

+	      XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted);

+

+	      (void)(* pp->pAdaptor->ddStopVideo)(NULL, pp, pp->pDraw);

+

+	      pp->pDraw = NULL;

+	      pp->client = NULL;

+	      pp->time = currentTime;

+	    }

+	  pp++;

+	}

+      pa++;

+    }

+  

+  status = (* pScreen->DestroyPixmap)(pPix);

+

+  SCREEN_EPILOGUE(pScreen, DestroyPixmap, XvDestroyPixmap);

+

+  return status;

+

+}

+

+static Bool

+XvDestroyWindow(WindowPtr pWin)

+{

+  Bool status;

+  ScreenPtr pScreen;

+  XvScreenPtr pxvs;

+  XvAdaptorPtr pa;

+  int na;

+  XvPortPtr pp;

+  int np;

+

+  pScreen = pWin->drawable.pScreen;

+

+  SCREEN_PROLOGUE(pScreen, DestroyWindow);

+

+  pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);

+

+  /* CHECK TO SEE IF THIS PORT IS IN USE */

+

+  pa = pxvs->pAdaptors;

+  na = pxvs->nAdaptors;

+  while (na--)

+    {

+      np = pa->nPorts;

+      pp = pa->pPorts;

+

+      while (np--)

+	{

+	  if (pp->pDraw == (DrawablePtr)pWin)

+	    {

+	      XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted);

+

+	      (void)(* pp->pAdaptor->ddStopVideo)(NULL, pp, pp->pDraw);

+

+	      pp->pDraw = NULL;

+	      pp->client = NULL;

+	      pp->time = currentTime;

+	    }

+	  pp++;

+	}

+      pa++;

+    }

+

+  

+  status = (* pScreen->DestroyWindow)(pWin);

+

+  SCREEN_EPILOGUE(pScreen, DestroyWindow, XvDestroyWindow);

+

+  return status;

+

+}

+

+/* The XvdiVideoStopped procedure is a hook for the device dependent layer.

+   It provides a way for the dd layer to inform the di layer that video has

+   stopped in a port for reasons that the di layer had no control over; note

+   that it doesn't call back into the dd layer */

+

+int

+XvdiVideoStopped(XvPortPtr pPort, int reason)

+{

+  

+  /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */

+

+  if (!pPort->pDraw) return Success;

+

+  XvdiSendVideoNotify(pPort, pPort->pDraw, reason);

+

+  pPort->pDraw = NULL;

+  pPort->client = NULL;

+  pPort->time = currentTime;

+

+  return Success;

+

+}

+

+static int 

+XvdiDestroyPort(pointer pPort, XID id)

+{

+  return (* ((XvPortPtr)pPort)->pAdaptor->ddFreePort)(pPort);

+}

+

+static int

+XvdiDestroyGrab(pointer pGrab, XID id)

+{

+  ((XvGrabPtr)pGrab)->client = NULL;

+  return Success;

+}

+

+static int

+XvdiDestroyVideoNotify(pointer pn, XID id)

+{

+  /* JUST CLEAR OUT THE client POINTER FIELD */

+

+  ((XvVideoNotifyPtr)pn)->client = NULL;

+  return Success;

+}

+

+static int

+XvdiDestroyPortNotify(pointer pn, XID id)

+{

+  /* JUST CLEAR OUT THE client POINTER FIELD */

+

+  ((XvPortNotifyPtr)pn)->client = NULL;

+  return Success;

+}

+

+static int

+XvdiDestroyVideoNotifyList(pointer pn, XID id)

+{

+  XvVideoNotifyPtr npn,cpn;

+

+  /* ACTUALLY DESTROY THE NOTITY LIST */

+

+  cpn = (XvVideoNotifyPtr)pn;

+

+  while (cpn)

+    {

+      npn = cpn->next;

+      if (cpn->client) FreeResource(cpn->id, XvRTVideoNotify);

+      free(cpn);

+      cpn = npn;

+    }

+  return Success;

+}

+

+static int

+XvdiDestroyEncoding(pointer value, XID id)

+{

+  return Success;

+}

+

+static int

+XvdiSendVideoNotify(XvPortPtr pPort, DrawablePtr pDraw, int reason)

+{

+  xvEvent event;

+  XvVideoNotifyPtr pn;

+

+  dixLookupResourceByType((pointer *)&pn, pDraw->id, XvRTVideoNotifyList,

+			  serverClient, DixReadAccess);

+

+  while (pn) 

+    {

+      if (pn->client)

+	{

+	  event.u.u.type = XvEventBase + XvVideoNotify;

+	  event.u.u.sequenceNumber = pn->client->sequence;

+	  event.u.videoNotify.time = currentTime.milliseconds;

+	  event.u.videoNotify.drawable = pDraw->id;

+	  event.u.videoNotify.port = pPort->id;

+	  event.u.videoNotify.reason = reason;

+	  TryClientEvents(pn->client, NULL, (xEventPtr)&event, 1,

+                          NoEventMask, NoEventMask, NullGrab);

+	}

+      pn = pn->next;

+    }

+

+  return Success;

+

+}

+

+

+int

+XvdiSendPortNotify(

+  XvPortPtr pPort,

+  Atom attribute,

+  INT32 value

+){

+  xvEvent event;

+  XvPortNotifyPtr pn;

+

+  pn = pPort->pNotify;

+

+  while (pn) 

+    {

+      if (pn->client)

+	{

+	  event.u.u.type = XvEventBase + XvPortNotify;

+	  event.u.u.sequenceNumber = pn->client->sequence;

+	  event.u.portNotify.time = currentTime.milliseconds;

+	  event.u.portNotify.port = pPort->id;

+	  event.u.portNotify.attribute = attribute;

+	  event.u.portNotify.value = value;

+	  TryClientEvents(pn->client, NULL, (xEventPtr)&event, 1,

+                          NoEventMask, NoEventMask, NullGrab);

+	}

+      pn = pn->next;

+    }

+

+  return Success;

+

+}

+

+

+#define CHECK_SIZE(dw, dh, sw, sh) {                                  \

+  if(!dw || !dh || !sw || !sh)  return Success;                       \

+  /* The region code will break these if they are too large */        \

+  if((dw > 32767) || (dh > 32767) || (sw > 32767) || (sh > 32767))    \

+        return BadValue;                                              \

+}

+

+

+int

+XvdiPutVideo(   

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y, 

+   CARD16 vid_w, CARD16 vid_h, 

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  DrawablePtr pOldDraw;

+

+  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);

+

+  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */

+

+  UpdateCurrentTime();

+

+  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN

+     INFORM CLIENT OF ITS FAILURE */

+

+  if (pPort->grab.client && (pPort->grab.client != client))

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvBusy);

+      return Success;

+    }

+

+  /* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED

+     EVENTS TO ANY CLIENTS WHO WANT THEM */

+

+  pOldDraw = pPort->pDraw;

+  if ((pOldDraw) && (pOldDraw != pDraw))

+    {

+      XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);

+    }

+

+  (void) (* pPort->pAdaptor->ddPutVideo)(client, pDraw, pPort, pGC,

+					   vid_x, vid_y, vid_w, vid_h, 

+					   drw_x, drw_y, drw_w, drw_h);

+

+  if ((pPort->pDraw) && (pOldDraw != pDraw))

+    {

+      pPort->client = client;

+      XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted);

+    }

+

+  pPort->time = currentTime;

+

+  return (Success);

+

+}

+

+int

+XvdiPutStill(   

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y, 

+   CARD16 vid_w, CARD16 vid_h, 

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  int status;

+

+  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);

+

+  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */

+

+  UpdateCurrentTime();

+

+  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN

+     INFORM CLIENT OF ITS FAILURE */

+

+  if (pPort->grab.client && (pPort->grab.client != client))

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvBusy);

+      return Success;

+    }

+

+  pPort->time = currentTime;

+

+  status = (* pPort->pAdaptor->ddPutStill)(client, pDraw, pPort, pGC, 

+					   vid_x, vid_y, vid_w, vid_h, 

+					   drw_x, drw_y, drw_w, drw_h);

+

+  return status;

+

+}

+

+int

+XvdiPutImage(   

+   ClientPtr client, 

+   DrawablePtr pDraw, 

+   XvPortPtr pPort, 

+   GCPtr pGC,

+   INT16 src_x, INT16 src_y, 

+   CARD16 src_w, CARD16 src_h, 

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h,

+   XvImagePtr image,

+   unsigned char* data,

+   Bool sync,

+   CARD16 width, CARD16 height

+){

+  CHECK_SIZE(drw_w, drw_h, src_w, src_h);

+

+  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */

+

+  UpdateCurrentTime();

+

+  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN

+     INFORM CLIENT OF ITS FAILURE */

+

+  if (pPort->grab.client && (pPort->grab.client != client))

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvBusy);

+      return Success;

+    }

+

+  pPort->time = currentTime;

+

+  return (* pPort->pAdaptor->ddPutImage)(client, pDraw, pPort, pGC, 

+					   src_x, src_y, src_w, src_h, 

+					   drw_x, drw_y, drw_w, drw_h,

+					   image, data, sync, width, height);

+}

+

+

+int

+XvdiGetVideo(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y, 

+   CARD16 vid_w, CARD16 vid_h, 

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  DrawablePtr pOldDraw;

+

+  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);

+

+  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */

+

+  UpdateCurrentTime();

+

+  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN

+     INFORM CLIENT OF ITS FAILURE */

+

+  if (pPort->grab.client && (pPort->grab.client != client))

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvBusy);

+      return Success;

+    }

+

+  /* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED

+     EVENTS TO ANY CLIENTS WHO WANT THEM */

+

+  pOldDraw = pPort->pDraw;

+  if ((pOldDraw) && (pOldDraw != pDraw))

+    {

+      XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);

+    }

+

+  (void) (* pPort->pAdaptor->ddGetVideo)(client, pDraw, pPort, pGC,

+					   vid_x, vid_y, vid_w, vid_h, 

+					   drw_x, drw_y, drw_w, drw_h);

+

+  if ((pPort->pDraw) && (pOldDraw != pDraw))

+    {

+      pPort->client = client;

+      XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted);

+    }

+

+  pPort->time = currentTime;

+

+  return (Success);

+

+}

+

+int

+XvdiGetStill(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y, 

+   CARD16 vid_w, CARD16 vid_h, 

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  int status;

+

+  CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);

+

+  /* UPDATE TIME VARIABLES FOR USE IN EVENTS */

+

+  UpdateCurrentTime();

+

+  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN

+     INFORM CLIENT OF ITS FAILURE */

+

+  if (pPort->grab.client && (pPort->grab.client != client))

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvBusy);

+      return Success;

+    }

+

+  status = (* pPort->pAdaptor->ddGetStill)(client, pDraw, pPort, pGC, 

+					   vid_x, vid_y, vid_w, vid_h, 

+					   drw_x, drw_y, drw_w, drw_h);

+

+  pPort->time = currentTime;

+

+  return status;

+

+}

+

+int

+XvdiGrabPort(

+   ClientPtr client,

+   XvPortPtr pPort,

+   Time ctime,

+   int *p_result

+){

+  unsigned long id;

+  TimeStamp time;

+

+  UpdateCurrentTime();

+  time = ClientTimeToServerTime(ctime);

+

+  if (pPort->grab.client && (client != pPort->grab.client))

+    {

+      *p_result = XvAlreadyGrabbed;

+      return Success;

+    }

+

+  if ((CompareTimeStamps(time, currentTime) == LATER) ||

+      (CompareTimeStamps(time, pPort->time) == EARLIER))

+    {

+      *p_result = XvInvalidTime;

+      return Success;

+    }

+

+  if (client == pPort->grab.client)

+    {

+      *p_result = Success;

+      return Success;

+    }

+

+  id = FakeClientID(client->index);

+

+  if (!AddResource(id, XvRTGrab, &pPort->grab))

+    {

+      return BadAlloc;

+    }

+

+  /* IF THERE IS ACTIVE VIDEO THEN STOP IT */

+

+  if ((pPort->pDraw) && (client != pPort->client))

+    {

+      XvdiStopVideo(NULL, pPort, pPort->pDraw);

+    }

+

+  pPort->grab.client = client;

+  pPort->grab.id = id;

+

+  pPort->time = currentTime;

+

+  *p_result = Success;

+

+  return Success;

+

+}

+

+int

+XvdiUngrabPort(

+  ClientPtr client,

+  XvPortPtr pPort,

+  Time ctime

+){

+  TimeStamp time;

+

+  UpdateCurrentTime();

+  time = ClientTimeToServerTime(ctime);

+

+  if ((!pPort->grab.client) || (client != pPort->grab.client))

+    {

+      return Success;

+    }

+

+  if ((CompareTimeStamps(time, currentTime) == LATER) ||

+      (CompareTimeStamps(time, pPort->time) == EARLIER))

+    {

+      return Success;

+    }

+

+  /* FREE THE GRAB RESOURCE; AND SET THE GRAB CLIENT TO NULL */

+

+  FreeResource(pPort->grab.id, XvRTGrab);

+  pPort->grab.client = NULL;

+

+  pPort->time = currentTime;

+

+  return Success;

+

+}

+

+

+int

+XvdiSelectVideoNotify(

+  ClientPtr client,

+  DrawablePtr pDraw,

+  BOOL onoff

+){

+  XvVideoNotifyPtr pn,tpn,fpn;

+  int rc;

+

+  /* FIND VideoNotify LIST */

+

+  rc = dixLookupResourceByType((pointer *)&pn, pDraw->id, XvRTVideoNotifyList,

+			       client, DixWriteAccess);

+  if (rc != Success && rc != BadValue)

+      return rc;

+

+  /* IF ONE DONES'T EXIST AND NO MASK, THEN JUST RETURN */

+

+  if (!onoff && !pn) return Success;

+

+  /* IF ONE DOESN'T EXIST CREATE IT AND ADD A RESOURCE SO THAT THE LIST

+     WILL BE DELETED WHEN THE DRAWABLE IS DESTROYED */

+

+  if (!pn) 

+    {

+      if (!(tpn = malloc(sizeof(XvVideoNotifyRec))))

+	return BadAlloc;

+      tpn->next = NULL;

+      if (!AddResource(pDraw->id, XvRTVideoNotifyList, tpn))

+	{

+	  free(tpn);

+	  return BadAlloc;

+	}

+    }

+  else

+    {

+      /* LOOK TO SEE IF ENTRY ALREADY EXISTS */

+

+      fpn = NULL;

+      tpn = pn;

+      while (tpn)

+	{

+	  if (tpn->client == client) 

+	    {

+	      if (!onoff) tpn->client = NULL;

+	      return Success;

+	    }

+	  if (!tpn->client) fpn = tpn; /* TAKE NOTE OF FREE ENTRY */

+	  tpn = tpn->next;

+	}

+

+      /* IF TUNNING OFF, THEN JUST RETURN */

+

+      if (!onoff) return Success;

+

+      /* IF ONE ISN'T FOUND THEN ALLOCATE ONE AND LINK IT INTO THE LIST */

+

+      if (fpn)

+	{

+	  tpn = fpn;

+	}

+      else

+	{

+	  if (!(tpn = malloc(sizeof(XvVideoNotifyRec))))

+	    return BadAlloc;

+	  tpn->next = pn->next;

+	  pn->next = tpn;

+	}

+    }

+

+  /* INIT CLIENT PTR IN CASE WE CAN'T ADD RESOURCE */

+  /* ADD RESOURCE SO THAT IF CLIENT EXITS THE CLIENT PTR WILL BE CLEARED */

+

+  tpn->client = NULL;

+  tpn->id = FakeClientID(client->index);

+  AddResource(tpn->id, XvRTVideoNotify, tpn);

+

+  tpn->client = client;

+  return Success;

+

+}

+

+int

+XvdiSelectPortNotify(

+   ClientPtr client,

+   XvPortPtr pPort,

+   BOOL onoff

+){

+  XvPortNotifyPtr pn,tpn;

+

+  /* SEE IF CLIENT IS ALREADY IN LIST */

+

+  tpn = NULL;

+  pn = pPort->pNotify;

+  while (pn)

+    {

+      if (!pn->client) tpn = pn; /* TAKE NOTE OF FREE ENTRY */

+      if (pn->client == client) break;

+      pn = pn->next;

+    }

+

+  /* IS THE CLIENT ALREADY ON THE LIST? */

+

+  if (pn)

+    {

+      /* REMOVE IT? */

+

+      if (!onoff)

+	{

+	  pn->client = NULL;

+	  FreeResource(pn->id, XvRTPortNotify);

+	}

+

+      return Success;

+    }

+

+  /* DIDN'T FIND IT; SO REUSE LIST ELEMENT IF ONE IS FREE OTHERWISE 

+     CREATE A NEW ONE AND ADD IT TO THE BEGINNING OF THE LIST */

+

+  if (!tpn)

+    {

+      if (!(tpn = malloc(sizeof(XvPortNotifyRec))))

+	return BadAlloc;

+      tpn->next = pPort->pNotify;

+      pPort->pNotify = tpn;

+    }

+

+  tpn->client = client;

+  tpn->id = FakeClientID(client->index);

+  AddResource(tpn->id, XvRTPortNotify, tpn);

+

+  return Success;

+

+}

+

+int

+XvdiStopVideo(

+  ClientPtr client,

+  XvPortPtr pPort,

+  DrawablePtr pDraw

+){

+  int status;

+

+  /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */

+

+  if (!pPort->pDraw || (pPort->pDraw != pDraw)) 

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvStopped);

+      return Success;

+    }

+

+  /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN

+     INFORM CLIENT OF ITS FAILURE */

+

+  if ((client) && (pPort->grab.client) && (pPort->grab.client != client))

+    {

+      XvdiSendVideoNotify(pPort, pDraw, XvBusy);

+      return Success;

+    }

+

+  XvdiSendVideoNotify(pPort, pDraw, XvStopped);

+

+  status = (* pPort->pAdaptor->ddStopVideo)(client, pPort, pDraw);

+

+  pPort->pDraw = NULL;

+  pPort->client = (ClientPtr)client;

+  pPort->time = currentTime;

+

+  return status;

+

+}

+

+int

+XvdiPreemptVideo(

+  ClientPtr client,

+  XvPortPtr pPort,

+  DrawablePtr pDraw

+){

+  int status;

+

+  /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */

+

+  if (!pPort->pDraw || (pPort->pDraw != pDraw)) return Success;

+

+  XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);

+

+  status = (* pPort->pAdaptor->ddStopVideo)(client, pPort, pPort->pDraw);

+

+  pPort->pDraw = NULL;

+  pPort->client = (ClientPtr)client;

+  pPort->time = currentTime;

+

+  return status;

+

+}

+

+int

+XvdiMatchPort(

+  XvPortPtr pPort,

+  DrawablePtr pDraw

+){

+

+  XvAdaptorPtr pa;

+  XvFormatPtr pf;

+  int nf;

+

+  pa = pPort->pAdaptor;

+

+  if (pa->pScreen != pDraw->pScreen) return BadMatch;

+

+  nf = pa->nFormats;

+  pf = pa->pFormats;

+

+  while (nf--)

+    {

+      if ((pf->depth == pDraw->depth) 

+#if 0

+         && ((pDraw->type == DRAWABLE_PIXMAP) || 

+	   (wVisual(((WindowPtr)pDraw)) == pf->visual))

+#endif

+	)

+	return Success;

+      pf++;

+    }

+

+  return BadMatch;

+

+}

+

+int

+XvdiSetPortAttribute(

+  ClientPtr client,

+  XvPortPtr pPort,

+  Atom attribute,

+  INT32 value

+){

+

+    XvdiSendPortNotify(pPort, attribute, value);

+

+  return 

+    (* pPort->pAdaptor->ddSetPortAttribute)(client, pPort, attribute, value);

+

+}

+

+int

+XvdiGetPortAttribute(

+  ClientPtr client,

+  XvPortPtr pPort,

+  Atom attribute,

+  INT32 *p_value

+){

+

+  return 

+    (* pPort->pAdaptor->ddGetPortAttribute)(client, pPort, attribute, p_value);

+

+}

+

+static void

+WriteSwappedVideoNotifyEvent(xvEvent *from, xvEvent *to)

+

+{

+

+  to->u.u.type = from->u.u.type;

+  to->u.u.detail = from->u.u.detail;

+  cpswaps(from->u.videoNotify.sequenceNumber, 

+	  to->u.videoNotify.sequenceNumber);

+  cpswapl(from->u.videoNotify.time, to->u.videoNotify.time);

+  cpswapl(from->u.videoNotify.drawable, to->u.videoNotify.drawable);

+  cpswapl(from->u.videoNotify.port, to->u.videoNotify.port);

+

+}

+

+static void

+WriteSwappedPortNotifyEvent(xvEvent *from, xvEvent *to)

+

+{

+

+  to->u.u.type = from->u.u.type;

+  to->u.u.detail = from->u.u.detail;

+  cpswaps(from->u.portNotify.sequenceNumber, to->u.portNotify.sequenceNumber);

+  cpswapl(from->u.portNotify.time, to->u.portNotify.time);

+  cpswapl(from->u.portNotify.port, to->u.portNotify.port);

+  cpswapl(from->u.portNotify.value, to->u.portNotify.value);

+

+}