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

1 files changed, 2050 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/xfree86/common/xf86xv.c b/nx-X11/programs/Xserver/hw/xfree86/common/xf86xv.c
new file mode 100644
index 000000000..35695bd9e
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/xfree86/common/xf86xv.c
@@ -0,0 +1,2050 @@
+/*
+ * XFree86 Xv DDX written by Mark Vojkovich (markv@valinux.com)
+ */
+/*
+ * Copyright (c) 1998-2003 by The XFree86 Project, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86xv.c,v 1.37 2003/11/10 18:22:15 tsi Exp $ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "misc.h"
+#include "xf86.h"
+#include "xf86_OSproc.h"
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "scrnintstr.h"
+#include "regionstr.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "mivalidate.h"
+#include "validate.h"
+#include "resource.h"
+#include "gcstruct.h"
+#include "dixstruct.h"
+
+#include <X11/extensions/Xv.h>
+#include <X11/extensions/Xvproto.h>
+#include "xvdix.h"
+#ifdef XFree86LOADER
+#include "xvmodproc.h"
+#endif
+
+#include "xf86xvpriv.h"
+
+
+/* XvScreenRec fields */
+
+static Bool xf86XVCloseScreen(int, ScreenPtr);
+static int xf86XVQueryAdaptors(ScreenPtr, XvAdaptorPtr *, int *);
+
+/* XvAdaptorRec fields */
+
+static int xf86XVAllocatePort(unsigned long, XvPortPtr, XvPortPtr*);
+static int xf86XVFreePort(XvPortPtr);
+static int xf86XVPutVideo(ClientPtr, DrawablePtr,XvPortPtr, GCPtr,
+				INT16, INT16, CARD16, CARD16,
+				INT16, INT16, CARD16, CARD16);
+static int xf86XVPutStill(ClientPtr, DrawablePtr,XvPortPtr, GCPtr,
+				INT16, INT16, CARD16, CARD16,
+				INT16, INT16, CARD16, CARD16);
+static int xf86XVGetVideo(ClientPtr, DrawablePtr,XvPortPtr, GCPtr,
+				INT16, INT16, CARD16, CARD16,
+				INT16, INT16, CARD16, CARD16);
+static int xf86XVGetStill(ClientPtr, DrawablePtr,XvPortPtr, GCPtr,
+				INT16, INT16, CARD16, CARD16,
+				INT16, INT16, CARD16, CARD16);
+static int xf86XVStopVideo(ClientPtr, XvPortPtr, DrawablePtr);
+static int xf86XVSetPortAttribute(ClientPtr, XvPortPtr, Atom, INT32);
+static int xf86XVGetPortAttribute(ClientPtr, XvPortPtr, Atom, INT32*);
+static int xf86XVQueryBestSize(ClientPtr, XvPortPtr, CARD8,
+				CARD16, CARD16,CARD16, CARD16,
+				unsigned int*, unsigned int*);
+static int xf86XVPutImage(ClientPtr, DrawablePtr, XvPortPtr, GCPtr,
+				INT16, INT16, CARD16, CARD16,
+				INT16, INT16, CARD16, CARD16,
+				XvImagePtr, unsigned char*, Bool,
+				CARD16, CARD16);
+static int xf86XVQueryImageAttributes(ClientPtr, XvPortPtr, XvImagePtr,
+				CARD16*, CARD16*, int*, int*);
+
+
+/* ScreenRec fields */
+
+static Bool xf86XVDestroyWindow(WindowPtr pWin);
+static void xf86XVWindowExposures(WindowPtr pWin, RegionPtr r1, RegionPtr r2);
+static void xf86XVClipNotify(WindowPtr pWin, int dx, int dy);
+
+/* ScrnInfoRec functions */
+
+static Bool xf86XVEnterVT(int, int);
+static void xf86XVLeaveVT(int, int);
+static void xf86XVAdjustFrame(int index, int x, int y, int flags);
+
+/* misc */
+
+static Bool xf86XVInitAdaptors(ScreenPtr, XF86VideoAdaptorPtr*, int);
+
+
+int XF86XVWindowIndex = -1;
+int XF86XvScreenIndex = -1;
+static unsigned long XF86XVGeneration = 0;
+static unsigned long PortResource = 0;
+
+#ifdef XFree86LOADER
+int (*XvGetScreenIndexProc)(void) = NULL;
+unsigned long (*XvGetRTPortProc)(void) = NULL;
+int (*XvScreenInitProc)(ScreenPtr) = NULL;
+#else
+int (*XvGetScreenIndexProc)(void) = XvGetScreenIndex;
+unsigned long (*XvGetRTPortProc)(void) = XvGetRTPort;
+int (*XvScreenInitProc)(ScreenPtr) = XvScreenInit;
+#endif
+
+
+#define GET_XV_SCREEN(pScreen) \
+	((XvScreenPtr)((pScreen)->devPrivates[XF86XvScreenIndex].ptr))
+
+#define GET_XF86XV_SCREEN(pScreen) \
+	((XF86XVScreenPtr)(GET_XV_SCREEN(pScreen)->devPriv.ptr))
+
+#define GET_XF86XV_WINDOW(pWin) \
+	((XF86XVWindowPtr)((pWin)->devPrivates[XF86XVWindowIndex].ptr))
+
+static xf86XVInitGenericAdaptorPtr *GenDrivers = NULL;
+static int NumGenDrivers = 0;
+
+int
+xf86XVRegisterGenericAdaptorDriver(
+    xf86XVInitGenericAdaptorPtr InitFunc
+){
+  xf86XVInitGenericAdaptorPtr *newdrivers;
+
+  newdrivers = xrealloc(GenDrivers, sizeof(xf86XVInitGenericAdaptorPtr) *
+			(1 + NumGenDrivers));
+  if (!newdrivers)
+    return 0;
+  GenDrivers = newdrivers;
+
+  GenDrivers[NumGenDrivers++] = InitFunc;
+
+  return 1;
+}
+
+int
+xf86XVListGenericAdaptors(
+    ScrnInfoPtr pScrn,
+    XF86VideoAdaptorPtr **adaptors
+){
+    int i,j,n,num;
+    XF86VideoAdaptorPtr *DrivAdap,*new;
+
+    num = 0;
+    *adaptors = NULL;
+    /*
+     * The v4l driver registers itself first, but can use surfaces registered
+     * by other drivers.  So, call the v4l driver last.
+     */
+    for (i = NumGenDrivers; --i >= 0; ) {
+	DrivAdap = NULL;
+	n = (*GenDrivers[i])(pScrn, &DrivAdap);
+	if (0 == n)
+	    continue;
+	new = xrealloc(*adaptors, sizeof(XF86VideoAdaptorPtr) * (num+n));
+	if (NULL == new)
+	    continue;
+	*adaptors = new;
+	for (j = 0; j < n; j++, num++)
+	    (*adaptors)[num] = DrivAdap[j];
+    }
+    return num;
+}
+
+
+/****************  Offscreen surface stuff *******************/
+
+typedef struct {
+   XF86OffscreenImagePtr images;
+   int num;
+} OffscreenImageRec;
+
+static OffscreenImageRec OffscreenImages[MAXSCREENS];
+
+Bool
+xf86XVRegisterOffscreenImages(
+    ScreenPtr pScreen,
+    XF86OffscreenImagePtr images,
+    int num
+){
+    OffscreenImages[pScreen->myNum].num = num;
+    OffscreenImages[pScreen->myNum].images = images;
+
+    return TRUE;
+}
+
+XF86OffscreenImagePtr
+xf86XVQueryOffscreenImages(
+   ScreenPtr pScreen,
+   int *num
+){
+   *num = OffscreenImages[pScreen->myNum].num;
+   return OffscreenImages[pScreen->myNum].images;
+}
+
+
+XF86VideoAdaptorPtr
+xf86XVAllocateVideoAdaptorRec(ScrnInfoPtr pScrn)
+{
+    return xcalloc(1, sizeof(XF86VideoAdaptorRec));
+}
+
+void
+xf86XVFreeVideoAdaptorRec(XF86VideoAdaptorPtr ptr)
+{
+    xfree(ptr);
+}
+
+
+Bool
+xf86XVScreenInit(
+   ScreenPtr pScreen,
+   XF86VideoAdaptorPtr *adaptors,
+   int num
+){
+  ScrnInfoPtr pScrn;
+  XF86XVScreenPtr ScreenPriv;
+  XvScreenPtr pxvs;
+
+  if(num <= 0 ||
+     !XvGetScreenIndexProc || !XvGetRTPortProc || !XvScreenInitProc)
+	return FALSE;
+
+  if(XF86XVGeneration != serverGeneration) {
+	if((XF86XVWindowIndex = AllocateWindowPrivateIndex()) < 0)
+	    return FALSE;
+	XF86XVGeneration = serverGeneration;
+  }
+
+  if(!AllocateWindowPrivate(pScreen,XF86XVWindowIndex,0))
+	return FALSE;
+
+  if(Success != (*XvScreenInitProc)(pScreen)) return FALSE;
+
+  XF86XvScreenIndex = (*XvGetScreenIndexProc)();
+  PortResource = (*XvGetRTPortProc)();
+
+  pxvs = GET_XV_SCREEN(pScreen);
+
+  /* Anyone initializing the Xv layer must provide these two.
+     The Xv di layer calls them without even checking if they exist! */
+
+  pxvs->ddCloseScreen = xf86XVCloseScreen;
+  pxvs->ddQueryAdaptors = xf86XVQueryAdaptors;
+
+  /* The Xv di layer provides us with a private hook so that we don't
+     have to allocate our own screen private.  They also provide
+     a CloseScreen hook so that we don't have to wrap it.  I'm not
+     sure that I appreciate that.  */
+
+  ScreenPriv = xalloc(sizeof(XF86XVScreenRec));
+  pxvs->devPriv.ptr = (pointer)ScreenPriv;
+
+  if(!ScreenPriv) return FALSE;
+
+  pScrn = xf86Screens[pScreen->myNum];
+
+  ScreenPriv->videoGC = NULL;  /* for the helper */
+
+  ScreenPriv->DestroyWindow = pScreen->DestroyWindow;
+  ScreenPriv->WindowExposures = pScreen->WindowExposures;
+  ScreenPriv->ClipNotify = pScreen->ClipNotify;
+  ScreenPriv->EnterVT = pScrn->EnterVT;
+  ScreenPriv->LeaveVT = pScrn->LeaveVT;
+  ScreenPriv->AdjustFrame = pScrn->AdjustFrame;
+
+  pScreen->DestroyWindow = xf86XVDestroyWindow;
+  pScreen->WindowExposures = xf86XVWindowExposures;
+  pScreen->ClipNotify = xf86XVClipNotify;
+  pScrn->EnterVT = xf86XVEnterVT;
+  pScrn->LeaveVT = xf86XVLeaveVT;
+  if(pScrn->AdjustFrame)
+     pScrn->AdjustFrame = xf86XVAdjustFrame;
+
+  if(!xf86XVInitAdaptors(pScreen, adaptors, num))
+	return FALSE;
+
+  return TRUE;
+}
+
+static void
+xf86XVFreeAdaptor(XvAdaptorPtr pAdaptor)
+{
+   int i;
+
+   xfree(pAdaptor->name);
+
+   if(pAdaptor->pEncodings) {
+      XvEncodingPtr pEncode = pAdaptor->pEncodings;
+
+      for(i = 0; i < pAdaptor->nEncodings; i++, pEncode++)
+	  xfree(pEncode->name);
+      xfree(pAdaptor->pEncodings);
+   }
+
+   xfree(pAdaptor->pFormats);
+
+   if(pAdaptor->pPorts) {
+      XvPortPtr pPort = pAdaptor->pPorts;
+      XvPortRecPrivatePtr pPriv;
+
+      for(i = 0; i < pAdaptor->nPorts; i++, pPort++) {
+	  pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
+	  if(pPriv) {
+	     if(pPriv->clientClip)
+		REGION_DESTROY(pAdaptor->pScreen, pPriv->clientClip);
+	     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
+		REGION_DESTROY(pAdaptor->pScreen, pPriv->pCompositeClip);
+	     xfree(pPriv);
+	  }
+      }
+      xfree(pAdaptor->pPorts);
+   }
+
+   if(pAdaptor->nAttributes) {
+      XvAttributePtr pAttribute = pAdaptor->pAttributes;
+
+      for(i = 0; i < pAdaptor->nAttributes; i++, pAttribute++)
+	  xfree(pAttribute->name);
+      xfree(pAdaptor->pAttributes);
+   }
+
+   xfree(pAdaptor->pImages);
+   xfree(pAdaptor->devPriv.ptr);
+}
+
+static Bool
+xf86XVInitAdaptors(
+   ScreenPtr pScreen,
+   XF86VideoAdaptorPtr *infoPtr,
+   int number
+) {
+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
+  ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+  XF86VideoAdaptorPtr adaptorPtr;
+  XvAdaptorPtr pAdaptor, pa;
+  XvAdaptorRecPrivatePtr adaptorPriv;
+  int na, numAdaptor;
+  XvPortRecPrivatePtr portPriv;
+  XvPortPtr pPort, pp;
+  int numPort;
+  XF86AttributePtr attributePtr;
+  XvAttributePtr pAttribute, pat;
+  XF86VideoFormatPtr formatPtr;
+  XvFormatPtr pFormat, pf;
+  int numFormat, totFormat;
+  XF86VideoEncodingPtr encodingPtr;
+  XvEncodingPtr pEncode, pe;
+  XF86ImagePtr imagePtr;
+  XvImagePtr pImage, pi;
+  int numVisuals;
+  VisualPtr pVisual;
+  int i;
+
+  pxvs->nAdaptors = 0;
+  pxvs->pAdaptors = NULL;
+
+  if(!(pAdaptor = xcalloc(number, sizeof(XvAdaptorRec))))
+      return FALSE;
+
+  for(pa = pAdaptor, na = 0, numAdaptor = 0; na < number; na++, adaptorPtr++) {
+      adaptorPtr = infoPtr[na];
+
+      if(!adaptorPtr->StopVideo || !adaptorPtr->SetPortAttribute ||
+	 !adaptorPtr->GetPortAttribute || !adaptorPtr->QueryBestSize)
+	   continue;
+
+      /* client libs expect at least one encoding */
+      if(!adaptorPtr->nEncodings || !adaptorPtr->pEncodings)
+	   continue;
+
+      pa->type = adaptorPtr->type;
+
+      if(!adaptorPtr->PutVideo && !adaptorPtr->GetVideo)
+	 pa->type &= ~XvVideoMask;
+
+      if(!adaptorPtr->PutStill && !adaptorPtr->GetStill)
+	 pa->type &= ~XvStillMask;
+
+      if(!adaptorPtr->PutImage || !adaptorPtr->QueryImageAttributes)
+	 pa->type &= ~XvImageMask;
+
+      if(!adaptorPtr->PutVideo && !adaptorPtr->PutImage &&
+							  !adaptorPtr->PutStill)
+	 pa->type &= ~XvInputMask;
+
+      if(!adaptorPtr->GetVideo && !adaptorPtr->GetStill)
+	 pa->type &= ~XvOutputMask;
+
+      if(!(adaptorPtr->type & (XvPixmapMask | XvWindowMask)))
+	  continue;
+      if(!(adaptorPtr->type & (XvImageMask | XvVideoMask | XvStillMask)))
+	  continue;
+
+      pa->pScreen = pScreen;
+      pa->ddAllocatePort = xf86XVAllocatePort;
+      pa->ddFreePort = xf86XVFreePort;
+      pa->ddPutVideo = xf86XVPutVideo;
+      pa->ddPutStill = xf86XVPutStill;
+      pa->ddGetVideo = xf86XVGetVideo;
+      pa->ddGetStill = xf86XVGetStill;
+      pa->ddStopVideo = xf86XVStopVideo;
+      pa->ddPutImage = xf86XVPutImage;
+      pa->ddSetPortAttribute = xf86XVSetPortAttribute;
+      pa->ddGetPortAttribute = xf86XVGetPortAttribute;
+      pa->ddQueryBestSize = xf86XVQueryBestSize;
+      pa->ddQueryImageAttributes = xf86XVQueryImageAttributes;
+      if((pa->name = xalloc(strlen(adaptorPtr->name) + 1)))
+	  strcpy(pa->name, adaptorPtr->name);
+
+      if(adaptorPtr->nEncodings &&
+	(pEncode = xcalloc(adaptorPtr->nEncodings, sizeof(XvEncodingRec)))) {
+
+	for(pe = pEncode, encodingPtr = adaptorPtr->pEncodings, i = 0;
+	    i < adaptorPtr->nEncodings; pe++, i++, encodingPtr++)
+	{
+	    pe->id = encodingPtr->id;
+	    pe->pScreen = pScreen;
+	    if((pe->name = xalloc(strlen(encodingPtr->name) + 1)))
+		strcpy(pe->name, encodingPtr->name);
+	    pe->width = encodingPtr->width;
+	    pe->height = encodingPtr->height;
+	    pe->rate.numerator = encodingPtr->rate.numerator;
+	    pe->rate.denominator = encodingPtr->rate.denominator;
+	}
+	pa->nEncodings = adaptorPtr->nEncodings;
+	pa->pEncodings = pEncode;
+      }
+
+      if(adaptorPtr->nImages &&
+	 (pImage = xcalloc(adaptorPtr->nImages, sizeof(XvImageRec)))) {
+
+	  for(i = 0, pi = pImage, imagePtr = adaptorPtr->pImages;
+	      i < adaptorPtr->nImages; i++, pi++, imagePtr++)
+	  {
+	     pi->id = imagePtr->id;
+	     pi->type = imagePtr->type;
+	     pi->byte_order = imagePtr->byte_order;
+	     memcpy(pi->guid, imagePtr->guid, 16);
+	     pi->bits_per_pixel = imagePtr->bits_per_pixel;
+	     pi->format = imagePtr->format;
+	     pi->num_planes = imagePtr->num_planes;
+	     pi->depth = imagePtr->depth;
+	     pi->red_mask = imagePtr->red_mask;
+	     pi->green_mask = imagePtr->green_mask;
+	     pi->blue_mask = imagePtr->blue_mask;
+	     pi->y_sample_bits = imagePtr->y_sample_bits;
+	     pi->u_sample_bits = imagePtr->u_sample_bits;
+	     pi->v_sample_bits = imagePtr->v_sample_bits;
+	     pi->horz_y_period = imagePtr->horz_y_period;
+	     pi->horz_u_period = imagePtr->horz_u_period;
+	     pi->horz_v_period = imagePtr->horz_v_period;
+	     pi->vert_y_period = imagePtr->vert_y_period;
+	     pi->vert_u_period = imagePtr->vert_u_period;
+	     pi->vert_v_period = imagePtr->vert_v_period;
+	     memcpy(pi->component_order, imagePtr->component_order, 32);
+	     pi->scanline_order = imagePtr->scanline_order;
+	  }
+	  pa->nImages = adaptorPtr->nImages;
+	  pa->pImages = pImage;
+      }
+
+      if(adaptorPtr->nAttributes &&
+	(pAttribute = xcalloc(adaptorPtr->nAttributes, sizeof(XvAttributeRec))))
+      {
+	for(pat = pAttribute, attributePtr = adaptorPtr->pAttributes, i = 0;
+	    i < adaptorPtr->nAttributes; pat++, i++, attributePtr++)
+	{
+	    pat->flags = attributePtr->flags;
+	    pat->min_value = attributePtr->min_value;
+	    pat->max_value = attributePtr->max_value;
+	    if((pat->name = xalloc(strlen(attributePtr->name) + 1)))
+		strcpy(pat->name, attributePtr->name);
+	}
+	pa->nAttributes = adaptorPtr->nAttributes;
+	pa->pAttributes = pAttribute;
+      }
+
+
+      totFormat = adaptorPtr->nFormats;
+
+      if(!(pFormat = xcalloc(totFormat, sizeof(XvFormatRec)))) {
+	  xf86XVFreeAdaptor(pa);
+	  continue;
+      }
+      for(pf = pFormat, i = 0, numFormat = 0, formatPtr = adaptorPtr->pFormats;
+	  i < adaptorPtr->nFormats; i++, formatPtr++)
+      {
+	  numVisuals = pScreen->numVisuals;
+	  pVisual = pScreen->visuals;
+
+	  while(numVisuals--) {
+	      if((pVisual->class == formatPtr->class) &&
+		 (pVisual->nplanes == formatPtr->depth)) {
+
+		   if(numFormat >= totFormat) {
+			void *moreSpace;
+			totFormat *= 2;
+			moreSpace = xrealloc(pFormat,
+					     totFormat * sizeof(XvFormatRec));
+			if(!moreSpace) break;
+			pFormat = moreSpace;
+			pf = pFormat + numFormat;
+		   }
+
+		   pf->visual = pVisual->vid;
+		   pf->depth = formatPtr->depth;
+
+		   pf++;
+		   numFormat++;
+	      }
+	      pVisual++;
+	  }
+      }
+      pa->nFormats = numFormat;
+      pa->pFormats = pFormat;
+      if(!numFormat) {
+	  xf86XVFreeAdaptor(pa);
+	  continue;
+      }
+
+      if(!(adaptorPriv = xcalloc(1, sizeof(XvAdaptorRecPrivate)))) {
+	  xf86XVFreeAdaptor(pa);
+	  continue;
+      }
+
+      adaptorPriv->flags = adaptorPtr->flags;
+      adaptorPriv->PutVideo = adaptorPtr->PutVideo;
+      adaptorPriv->PutStill = adaptorPtr->PutStill;
+      adaptorPriv->GetVideo = adaptorPtr->GetVideo;
+      adaptorPriv->GetStill = adaptorPtr->GetStill;
+      adaptorPriv->StopVideo = adaptorPtr->StopVideo;
+      adaptorPriv->SetPortAttribute = adaptorPtr->SetPortAttribute;
+      adaptorPriv->GetPortAttribute = adaptorPtr->GetPortAttribute;
+      adaptorPriv->QueryBestSize = adaptorPtr->QueryBestSize;
+      adaptorPriv->QueryImageAttributes = adaptorPtr->QueryImageAttributes;
+      adaptorPriv->PutImage = adaptorPtr->PutImage;
+      adaptorPriv->ReputImage = adaptorPtr->ReputImage;
+
+      pa->devPriv.ptr = (pointer)adaptorPriv;
+
+      if(!(pPort = xcalloc(adaptorPtr->nPorts, sizeof(XvPortRec)))) {
+	  xf86XVFreeAdaptor(pa);
+	  continue;
+      }
+      for(pp = pPort, i = 0, numPort = 0;
+	  i < adaptorPtr->nPorts; i++) {
+
+	  if(!(pp->id = FakeClientID(0)))
+		continue;
+
+	  if(!(portPriv = xcalloc(1, sizeof(XvPortRecPrivate))))
+		continue;
+
+	  if(!AddResource(pp->id, PortResource, pp)) {
+		xfree(portPriv);
+		continue;
+	  }
+
+	  pp->pAdaptor = pa;
+	  pp->pNotify = (XvPortNotifyPtr)NULL;
+	  pp->pDraw = (DrawablePtr)NULL;
+	  pp->client = (ClientPtr)NULL;
+	  pp->grab.client = (ClientPtr)NULL;
+	  pp->time = currentTime;
+	  pp->devPriv.ptr = portPriv;
+
+	  portPriv->pScrn = pScrn;
+	  portPriv->AdaptorRec = adaptorPriv;
+	  portPriv->DevPriv.ptr = adaptorPtr->pPortPrivates[i].ptr;
+
+	  pp++;
+	  numPort++;
+      }
+      pa->nPorts = numPort;
+      pa->pPorts = pPort;
+      if(!numPort) {
+	  xf86XVFreeAdaptor(pa);
+	  continue;
+      }
+
+      pa->base_id = pPort->id;
+
+      pa++;
+      numAdaptor++;
+  }
+
+  if(numAdaptor) {
+      pxvs->nAdaptors = numAdaptor;
+      pxvs->pAdaptors = pAdaptor;
+  } else {
+     xfree(pAdaptor);
+     return FALSE;
+  }
+
+  return TRUE;
+}
+
+/* Video should be clipped to the intersection of the window cliplist
+   and the client cliplist specified in the GC for which the video was
+   initialized.  When we need to reclip a window, the GC that started
+   the video may not even be around anymore.  That's why we save the
+   client clip from the GC when the video is initialized.  We then
+   use xf86XVUpdateCompositeClip to calculate the new composite clip
+   when we need it.  This is different from what DEC did.  They saved
+   the GC and used it's clip list when they needed to reclip the window,
+   even if the client clip was different from the one the video was
+   initialized with.  If the original GC was destroyed, they had to stop
+   the video.  I like the new method better (MArk).
+
+   This function only works for windows.  Will need to rewrite when
+   (if) we support pixmap rendering.
+*/
+
+static void
+xf86XVUpdateCompositeClip(XvPortRecPrivatePtr portPriv)
+{
+   RegionPtr	pregWin, pCompositeClip;
+   WindowPtr	pWin;
+   ScreenPtr	pScreen;
+   Bool		freeCompClip = FALSE;
+
+   if(portPriv->pCompositeClip)
+	return;
+
+   pWin = (WindowPtr)portPriv->pDraw;
+   pScreen = pWin->drawable.pScreen;
+
+   /* get window clip list */
+   if(portPriv->subWindowMode == IncludeInferiors) {
+	pregWin = NotClippedByChildren(pWin);
+	freeCompClip = TRUE;
+   } else
+	pregWin = &pWin->clipList;
+
+   if(!portPriv->clientClip) {
+	portPriv->pCompositeClip = pregWin;
+	portPriv->FreeCompositeClip = freeCompClip;
+	return;
+   }
+
+   pCompositeClip = REGION_CREATE(pScreen, NullBox, 1);
+   REGION_COPY(pScreen, pCompositeClip, portPriv->clientClip);
+   REGION_TRANSLATE(pScreen, pCompositeClip,
+			portPriv->pDraw->x + portPriv->clipOrg.x,
+			portPriv->pDraw->y + portPriv->clipOrg.y);
+   REGION_INTERSECT(pScreen, pCompositeClip, pregWin, pCompositeClip);
+
+   portPriv->pCompositeClip = pCompositeClip;
+   portPriv->FreeCompositeClip = TRUE;
+
+   if(freeCompClip) {
+	REGION_DESTROY(pScreen, pregWin);
+   }
+}
+
+/* Save the current clientClip and update the CompositeClip whenever
+   we have a fresh GC */
+
+static void
+xf86XVCopyClip(
+   XvPortRecPrivatePtr portPriv,
+   GCPtr pGC
+){
+    ScreenPtr pScreen = pGC->pScreen;
+
+    /* copy the new clip if it exists */
+    if((pGC->clientClipType == CT_REGION) && pGC->clientClip) {
+	if(!portPriv->clientClip)
+	    portPriv->clientClip = REGION_CREATE(pScreen, NullBox, 1);
+	/* Note: this is in window coordinates */
+	REGION_COPY(pScreen, portPriv->clientClip, pGC->clientClip);
+    } else if(portPriv->clientClip) { /* free the old clientClip */
+	REGION_DESTROY(pScreen, portPriv->clientClip);
+	portPriv->clientClip = NULL;
+    }
+
+    /* get rid of the old clip list */
+    if(portPriv->pCompositeClip && portPriv->FreeCompositeClip) {
+	REGION_DESTROY(pScreen, portPriv->pCompositeClip);
+    }
+
+    portPriv->clipOrg = pGC->clipOrg;
+    portPriv->pCompositeClip = pGC->pCompositeClip;
+    portPriv->FreeCompositeClip = FALSE;
+    portPriv->subWindowMode = pGC->subWindowMode;
+}
+
+static int
+xf86XVRegetVideo(XvPortRecPrivatePtr portPriv)
+{
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  ScreenPtr pScreen;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  pScreen = portPriv->pDraw->pScreen;
+  xf86XVUpdateCompositeClip(portPriv);
+
+  /* translate the video region to the screen */
+  WinBox.x1 = portPriv->pDraw->x + portPriv->drw_x;
+  WinBox.y1 = portPriv->pDraw->y + portPriv->drw_y;
+  WinBox.x2 = WinBox.x1 + portPriv->drw_w;
+  WinBox.y2 = WinBox.y1 + portPriv->drw_h;
+
+  /* clip to the window composite clip */
+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
+  REGION_NULL(pScreen, &ClipRegion);
+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);
+
+  /* that's all if it's totally obscured */
+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
+	clippedAway = TRUE;
+	goto CLIP_VIDEO_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->GetVideo)(portPriv->pScrn,
+			portPriv->vid_x, portPriv->vid_y,
+			WinBox.x1, WinBox.y1,
+			portPriv->vid_w, portPriv->vid_h,
+			portPriv->drw_w, portPriv->drw_h,
+			&ClipRegion, portPriv->DevPriv.ptr);
+
+  if(ret == Success)
+	portPriv->isOn = XV_ON;
+
+CLIP_VIDEO_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && portPriv->isOn == XV_ON) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  /* This clip was copied and only good for one shot */
+  if(!portPriv->FreeCompositeClip)
+     portPriv->pCompositeClip = NULL;
+
+  REGION_UNINIT(pScreen, &WinRegion);
+  REGION_UNINIT(pScreen, &ClipRegion);
+
+  return ret;
+}
+
+
+static int
+xf86XVReputVideo(XvPortRecPrivatePtr portPriv)
+{
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  ScreenPtr pScreen;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  pScreen = portPriv->pDraw->pScreen;
+
+  xf86XVUpdateCompositeClip(portPriv);
+
+  /* translate the video region to the screen */
+  WinBox.x1 = portPriv->pDraw->x + portPriv->drw_x;
+  WinBox.y1 = portPriv->pDraw->y + portPriv->drw_y;
+  WinBox.x2 = WinBox.x1 + portPriv->drw_w;
+  WinBox.y2 = WinBox.y1 + portPriv->drw_h;
+
+  /* clip to the window composite clip */
+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
+  REGION_NULL(pScreen, &ClipRegion);
+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);
+
+  /* clip and translate to the viewport */
+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
+     RegionRec VPReg;
+     BoxRec VPBox;
+
+     VPBox.x1 = portPriv->pScrn->frameX0;
+     VPBox.y1 = portPriv->pScrn->frameY0;
+     VPBox.x2 = portPriv->pScrn->frameX1;
+     VPBox.y2 = portPriv->pScrn->frameY1;
+
+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
+     REGION_UNINIT(pScreen, &VPReg);
+  }
+
+  /* that's all if it's totally obscured */
+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
+	clippedAway = TRUE;
+	goto CLIP_VIDEO_BAILOUT;
+  }
+
+  /* bailout if we have to clip but the hardware doesn't support it */
+  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
+     {
+	    clippedAway = TRUE;
+	    goto CLIP_VIDEO_BAILOUT;
+     }
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->PutVideo)(portPriv->pScrn,
+			portPriv->vid_x, portPriv->vid_y,
+			WinBox.x1, WinBox.y1,
+			portPriv->vid_w, portPriv->vid_h,
+			portPriv->drw_w, portPriv->drw_h,
+			&ClipRegion, portPriv->DevPriv.ptr);
+
+  if(ret == Success) portPriv->isOn = XV_ON;
+
+CLIP_VIDEO_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  /* This clip was copied and only good for one shot */
+  if(!portPriv->FreeCompositeClip)
+     portPriv->pCompositeClip = NULL;
+
+  REGION_UNINIT(pScreen, &WinRegion);
+  REGION_UNINIT(pScreen, &ClipRegion);
+
+  return ret;
+}
+
+static int
+xf86XVReputImage(XvPortRecPrivatePtr portPriv)
+{
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  ScreenPtr pScreen;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  pScreen = portPriv->pDraw->pScreen;
+
+  xf86XVUpdateCompositeClip(portPriv);
+
+  /* translate the video region to the screen */
+  WinBox.x1 = portPriv->pDraw->x + portPriv->drw_x;
+  WinBox.y1 = portPriv->pDraw->y + portPriv->drw_y;
+  WinBox.x2 = WinBox.x1 + portPriv->drw_w;
+  WinBox.y2 = WinBox.y1 + portPriv->drw_h;
+
+  /* clip to the window composite clip */
+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
+  REGION_NULL(pScreen, &ClipRegion);
+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);
+
+  /* clip and translate to the viewport */
+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
+     RegionRec VPReg;
+     BoxRec VPBox;
+
+     VPBox.x1 = portPriv->pScrn->frameX0;
+     VPBox.y1 = portPriv->pScrn->frameY0;
+     VPBox.x2 = portPriv->pScrn->frameX1;
+     VPBox.y2 = portPriv->pScrn->frameY1;
+
+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
+     REGION_UNINIT(pScreen, &VPReg);
+  }
+
+  /* that's all if it's totally obscured */
+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
+	clippedAway = TRUE;
+	goto CLIP_VIDEO_BAILOUT;
+  }
+
+  /* bailout if we have to clip but the hardware doesn't support it */
+  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
+     {
+	    clippedAway = TRUE;
+	    goto CLIP_VIDEO_BAILOUT;
+     }
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->ReputImage)(portPriv->pScrn,
+			WinBox.x1, WinBox.y1,
+			&ClipRegion, portPriv->DevPriv.ptr);
+
+  portPriv->isOn = (ret == Success) ? XV_ON : XV_OFF;
+
+CLIP_VIDEO_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  /* This clip was copied and only good for one shot */
+  if(!portPriv->FreeCompositeClip)
+     portPriv->pCompositeClip = NULL;
+
+  REGION_UNINIT(pScreen, &WinRegion);
+  REGION_UNINIT(pScreen, &ClipRegion);
+
+  return ret;
+}
+
+
+static int
+xf86XVReputAllVideo(WindowPtr pWin, pointer data)
+{
+    XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
+
+    while(WinPriv) {
+	if(WinPriv->PortRec->type == XvInputMask)
+	    xf86XVReputVideo(WinPriv->PortRec);
+	else
+	    xf86XVRegetVideo(WinPriv->PortRec);
+	WinPriv = WinPriv->next;
+    }
+
+    return WT_WALKCHILDREN;
+}
+
+static int
+xf86XVEnlistPortInWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)
+{
+   XF86XVWindowPtr winPriv, PrivRoot;
+
+   winPriv = PrivRoot = GET_XF86XV_WINDOW(pWin);
+
+  /* Enlist our port in the window private */
+   while(winPriv) {
+	if(winPriv->PortRec == portPriv) /* we're already listed */
+	    break;
+	winPriv = winPriv->next;
+   }
+
+   if(!winPriv) {
+	winPriv = xalloc(sizeof(XF86XVWindowRec));
+	if(!winPriv) return BadAlloc;
+	winPriv->PortRec = portPriv;
+	winPriv->next = PrivRoot;
+	pWin->devPrivates[XF86XVWindowIndex].ptr = (pointer)winPriv;
+   }
+   return Success;
+}
+
+
+static void
+xf86XVRemovePortFromWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)
+{
+     XF86XVWindowPtr winPriv, prevPriv = NULL;
+
+     winPriv = GET_XF86XV_WINDOW(pWin);
+
+     while(winPriv) {
+	if(winPriv->PortRec == portPriv) {
+	    if(prevPriv)
+		prevPriv->next = winPriv->next;
+	    else
+		pWin->devPrivates[XF86XVWindowIndex].ptr =
+					(pointer)winPriv->next;
+	    xfree(winPriv);
+	    break;
+	}
+	prevPriv = winPriv;
+	winPriv = winPriv->next;
+     }
+     portPriv->pDraw = NULL;
+}
+
+/****  ScreenRec fields ****/
+
+static Bool
+xf86XVDestroyWindow(WindowPtr pWin)
+{
+  ScreenPtr pScreen = pWin->drawable.pScreen;
+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+  XF86XVWindowPtr tmp, WinPriv = GET_XF86XV_WINDOW(pWin);
+  int ret;
+
+  while(WinPriv) {
+     XvPortRecPrivatePtr pPriv = WinPriv->PortRec;
+
+     if(pPriv->isOn > XV_OFF) {
+	(*pPriv->AdaptorRec->StopVideo)(
+			pPriv->pScrn, pPriv->DevPriv.ptr, TRUE);
+	pPriv->isOn = XV_OFF;
+     }
+
+     pPriv->pDraw = NULL;
+     tmp = WinPriv;
+     WinPriv = WinPriv->next;
+     xfree(tmp);
+  }
+
+  pWin->devPrivates[XF86XVWindowIndex].ptr = NULL;
+
+  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
+  ret = (*pScreen->DestroyWindow)(pWin);
+  pScreen->DestroyWindow = xf86XVDestroyWindow;
+
+  return ret;
+}
+
+
+static void
+xf86XVWindowExposures(WindowPtr pWin, RegionPtr reg1, RegionPtr reg2)
+{
+  ScreenPtr pScreen = pWin->drawable.pScreen;
+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+  XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
+  XF86XVWindowPtr pPrev;
+  XvPortRecPrivatePtr pPriv;
+  Bool AreasExposed;
+
+  AreasExposed = (WinPriv && reg1 && REGION_NOTEMPTY(pScreen, reg1));
+
+  pScreen->WindowExposures = ScreenPriv->WindowExposures;
+  (*pScreen->WindowExposures)(pWin, reg1, reg2);
+  pScreen->WindowExposures = xf86XVWindowExposures;
+
+  /* filter out XClearWindow/Area */
+  if (!pWin->valdata) return;
+
+  pPrev = NULL;
+
+  while(WinPriv) {
+     pPriv = WinPriv->PortRec;
+
+     /* Reput anyone with a reput function */
+
+     switch(pPriv->type) {
+     case XvInputMask:
+	xf86XVReputVideo(pPriv);
+	break;
+     case XvOutputMask:
+	xf86XVRegetVideo(pPriv);
+	break;
+     default:  /* overlaid still/image*/
+	if (pPriv->AdaptorRec->ReputImage)
+	   xf86XVReputImage(pPriv);
+	else if(AreasExposed) {
+	    XF86XVWindowPtr tmp;
+
+	    if (pPriv->isOn == XV_ON) {
+		(*pPriv->AdaptorRec->StopVideo)(
+		    pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);
+		pPriv->isOn = XV_PENDING;
+	    }
+	    pPriv->pDraw = NULL;
+
+	    if(!pPrev)
+	       pWin->devPrivates[XF86XVWindowIndex].ptr =
+						(pointer)(WinPriv->next);
+	    else
+	       pPrev->next = WinPriv->next;
+	    tmp = WinPriv;
+	    WinPriv = WinPriv->next;
+	    xfree(tmp);
+	    continue;
+	}
+	break;
+     }
+     pPrev = WinPriv;
+     WinPriv = WinPriv->next;
+  }
+}
+
+
+static void
+xf86XVClipNotify(WindowPtr pWin, int dx, int dy)
+{
+  ScreenPtr pScreen = pWin->drawable.pScreen;
+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+  XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
+  XF86XVWindowPtr tmp, pPrev = NULL;
+  XvPortRecPrivatePtr pPriv;
+  Bool visible = (pWin->visibility == VisibilityUnobscured) ||
+		 (pWin->visibility == VisibilityPartiallyObscured);
+
+  while(WinPriv) {
+     pPriv = WinPriv->PortRec;
+
+     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
+	REGION_DESTROY(pScreen, pPriv->pCompositeClip);
+
+     pPriv->pCompositeClip = NULL;
+
+     /* Stop everything except images, but stop them too if the
+	window isn't visible.  But we only remove the images. */
+
+     if(pPriv->type || !visible) {
+	if(pPriv->isOn == XV_ON) {
+	    (*pPriv->AdaptorRec->StopVideo)(
+			pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);
+	    pPriv->isOn = XV_PENDING;
+	}
+
+	if(!pPriv->type) {  /* overlaid still/image */
+	    pPriv->pDraw = NULL;
+
+	    if(!pPrev)
+	       pWin->devPrivates[XF86XVWindowIndex].ptr =
+						(pointer)(WinPriv->next);
+	    else
+	       pPrev->next = WinPriv->next;
+	    tmp = WinPriv;
+	    WinPriv = WinPriv->next;
+	    xfree(tmp);
+	    continue;
+	}
+     }
+
+     pPrev = WinPriv;
+     WinPriv = WinPriv->next;
+  }
+
+  if(ScreenPriv->ClipNotify) {
+      pScreen->ClipNotify = ScreenPriv->ClipNotify;
+      (*pScreen->ClipNotify)(pWin, dx, dy);
+      pScreen->ClipNotify = xf86XVClipNotify;
+  }
+}
+
+
+
+/**** Required XvScreenRec fields ****/
+
+static Bool
+xf86XVCloseScreen(int i, ScreenPtr pScreen)
+{
+  ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+  XvAdaptorPtr pa;
+  int c;
+
+  /* Clear offscreen images */
+  (void)memset(&OffscreenImages[pScreen->myNum], 0, sizeof(OffscreenImages[0]));
+
+  if(!ScreenPriv) return TRUE;
+
+  if(ScreenPriv->videoGC) {
+     FreeGC(ScreenPriv->videoGC, 0);
+     ScreenPriv->videoGC = NULL;
+  }
+
+  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
+  pScreen->WindowExposures = ScreenPriv->WindowExposures;
+  pScreen->ClipNotify = ScreenPriv->ClipNotify;
+
+  pScrn->EnterVT = ScreenPriv->EnterVT;
+  pScrn->LeaveVT = ScreenPriv->LeaveVT;
+  pScrn->AdjustFrame = ScreenPriv->AdjustFrame;
+
+  for(c = 0, pa = pxvs->pAdaptors; c < pxvs->nAdaptors; c++, pa++) {
+       xf86XVFreeAdaptor(pa);
+  }
+
+  xfree(pxvs->pAdaptors);
+  xfree(ScreenPriv);
+  return TRUE;
+}
+
+
+static int
+xf86XVQueryAdaptors(
+   ScreenPtr pScreen,
+   XvAdaptorPtr *p_pAdaptors,
+   int *p_nAdaptors
+){
+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
+
+  *p_nAdaptors = pxvs->nAdaptors;
+  *p_pAdaptors = pxvs->pAdaptors;
+
+  return (Success);
+}
+
+
+/**** ScrnInfoRec fields ****/
+
+static Bool
+xf86XVEnterVT(int index, int flags)
+{
+    ScreenPtr pScreen = screenInfo.screens[index];
+    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+    Bool ret;
+
+    ret = (*ScreenPriv->EnterVT)(index, flags);
+
+    if(ret) WalkTree(pScreen, xf86XVReputAllVideo, 0);
+
+    return ret;
+}
+
+static void
+xf86XVLeaveVT(int index, int flags)
+{
+    ScreenPtr pScreen = screenInfo.screens[index];
+    XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
+    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+    XvAdaptorPtr pAdaptor;
+    XvPortPtr pPort;
+    XvPortRecPrivatePtr pPriv;
+    int i, j;
+
+    for(i = 0; i < pxvs->nAdaptors; i++) {
+	pAdaptor = &pxvs->pAdaptors[i];
+	for(j = 0; j < pAdaptor->nPorts; j++) {
+	    pPort = &pAdaptor->pPorts[j];
+	    pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
+	    if(pPriv->isOn > XV_OFF) {
+
+		(*pPriv->AdaptorRec->StopVideo)(
+			pPriv->pScrn, pPriv->DevPriv.ptr, TRUE);
+		pPriv->isOn = XV_OFF;
+
+		if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
+		    REGION_DESTROY(pScreen, pPriv->pCompositeClip);
+
+		pPriv->pCompositeClip = NULL;
+
+		if(!pPriv->type && pPriv->pDraw) { /* still */
+		    xf86XVRemovePortFromWindow((WindowPtr)pPriv->pDraw, pPriv);
+		}
+	    }
+	}
+    }
+
+    (*ScreenPriv->LeaveVT)(index, flags);
+}
+
+static void
+xf86XVAdjustFrame(int index, int x, int y, int flags)
+{
+  ScrnInfoPtr pScrn = xf86Screens[index];
+  ScreenPtr pScreen = pScrn->pScreen;
+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+  WindowPtr pWin;
+  XvAdaptorPtr pa;
+  int c, i;
+
+  if(ScreenPriv->AdjustFrame) {
+	pScrn->AdjustFrame = ScreenPriv->AdjustFrame;
+	(*pScrn->AdjustFrame)(index, x, y, flags);
+	pScrn->AdjustFrame = xf86XVAdjustFrame;
+  }
+
+  for(c = pxvs->nAdaptors, pa = pxvs->pAdaptors; c > 0; c--, pa++) {
+      XvPortPtr pPort = pa->pPorts;
+      XvPortRecPrivatePtr pPriv;
+
+      for(i = pa->nPorts; i > 0; i--, pPort++) {
+	pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
+
+	if(!pPriv->type && (pPriv->isOn == XV_ON)) { /* overlaid still/image */
+
+	  if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
+	     REGION_DESTROY(pScreen, pPriv->pCompositeClip);
+
+	  pPriv->pCompositeClip = NULL;
+
+	  pWin = (WindowPtr)pPriv->pDraw;
+
+	  if ((pPriv->AdaptorRec->ReputImage) &&
+	     ((pWin->visibility == VisibilityUnobscured) ||
+	      (pWin->visibility == VisibilityPartiallyObscured)))
+	  {
+	      xf86XVReputImage(pPriv);
+	  } else {
+	     (*pPriv->AdaptorRec->StopVideo)(
+				 pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);
+	     xf86XVRemovePortFromWindow(pWin, pPriv);
+	     pPriv->isOn = XV_PENDING;
+	     continue;
+	  }
+	}
+     }
+  }
+}
+
+
+/**** XvAdaptorRec fields ****/
+
+static int
+xf86XVAllocatePort(
+   unsigned long port,
+   XvPortPtr pPort,
+   XvPortPtr *ppPort
+){
+  *ppPort = pPort;
+  return Success;
+}
+
+
+
+static int
+xf86XVFreePort(XvPortPtr pPort)
+{
+  return Success;
+}
+
+
+static int
+xf86XVPutVideo(
+   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
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+  int result;
+
+  /* No dumping video to pixmaps... For now anyhow */
+  if(pDraw->type != DRAWABLE_WINDOW) {
+      pPort->pDraw = (DrawablePtr)NULL;
+      return BadAlloc;
+  }
+
+  /* If we are changing windows, unregister our port in the old window */
+  if(portPriv->pDraw && (portPriv->pDraw != pDraw))
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+
+  /* Register our port with the new window */
+  result =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
+  if(result != Success) return result;
+
+  portPriv->pDraw = pDraw;
+  portPriv->type = XvInputMask;
+
+  /* save a copy of these parameters */
+  portPriv->vid_x = vid_x;  portPriv->vid_y = vid_y;
+  portPriv->vid_w = vid_w;  portPriv->vid_h = vid_h;
+  portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
+  portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
+
+  /* make sure we have the most recent copy of the clientClip */
+  xf86XVCopyClip(portPriv, pGC);
+
+  /* To indicate to the DI layer that we were successful */
+  pPort->pDraw = pDraw;
+
+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
+
+  return(xf86XVReputVideo(portPriv));
+}
+
+static int
+xf86XVPutStill(
+   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
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+  ScreenPtr pScreen;
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  if (pDraw->type != DRAWABLE_WINDOW)
+      return BadAlloc;
+
+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
+
+  pScreen = pDraw->pScreen;
+
+  WinBox.x1 = pDraw->x + drw_x;
+  WinBox.y1 = pDraw->y + drw_y;
+  WinBox.x2 = WinBox.x1 + drw_w;
+  WinBox.y2 = WinBox.y1 + drw_h;
+
+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
+  REGION_NULL(pScreen, &ClipRegion);
+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);
+
+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
+     RegionRec VPReg;
+     BoxRec VPBox;
+
+     VPBox.x1 = portPriv->pScrn->frameX0;
+     VPBox.y1 = portPriv->pScrn->frameY0;
+     VPBox.x2 = portPriv->pScrn->frameX1;
+     VPBox.y2 = portPriv->pScrn->frameY1;
+
+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
+     REGION_UNINIT(pScreen, &VPReg);
+  }
+
+  if(portPriv->pDraw) {
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+  }
+
+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
+     clippedAway = TRUE;
+     goto PUT_STILL_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
+     {
+	  clippedAway = TRUE;
+	  goto PUT_STILL_BAILOUT;
+     }
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->PutStill)(portPriv->pScrn,
+		vid_x, vid_y, WinBox.x1, WinBox.y1,
+		vid_w, vid_h, drw_w, drw_h,
+		&ClipRegion, portPriv->DevPriv.ptr);
+
+  if((ret == Success) &&
+	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_STILLS)) {
+
+     xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
+     portPriv->isOn = XV_ON;
+     portPriv->pDraw = pDraw;
+     portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
+     portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
+     portPriv->type = 0;  /* no mask means it's transient and should
+			     not be reput once it's removed */
+     pPort->pDraw = pDraw;  /* make sure we can get stop requests */
+  }
+
+PUT_STILL_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  REGION_UNINIT(pScreen, &WinRegion);
+  REGION_UNINIT(pScreen, &ClipRegion);
+
+  return ret;
+}
+
+static int
+xf86XVGetVideo(
+   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
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+  int result;
+
+  /* No pixmaps... For now anyhow */
+  if(pDraw->type != DRAWABLE_WINDOW) {
+      pPort->pDraw = (DrawablePtr)NULL;
+      return BadAlloc;
+  }
+
+  /* If we are changing windows, unregister our port in the old window */
+  if(portPriv->pDraw && (portPriv->pDraw != pDraw))
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+
+  /* Register our port with the new window */
+  result =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
+  if(result != Success) return result;
+
+  portPriv->pDraw = pDraw;
+  portPriv->type = XvOutputMask;
+
+  /* save a copy of these parameters */
+  portPriv->vid_x = vid_x;  portPriv->vid_y = vid_y;
+  portPriv->vid_w = vid_w;  portPriv->vid_h = vid_h;
+  portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
+  portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
+
+  /* make sure we have the most recent copy of the clientClip */
+  xf86XVCopyClip(portPriv, pGC);
+
+  /* To indicate to the DI layer that we were successful */
+  pPort->pDraw = pDraw;
+
+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
+
+  return(xf86XVRegetVideo(portPriv));
+}
+
+static int
+xf86XVGetStill(
+   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
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+  ScreenPtr pScreen;
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  if (pDraw->type != DRAWABLE_WINDOW)
+      return BadAlloc;
+
+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
+
+  pScreen = pDraw->pScreen;
+
+  WinBox.x1 = pDraw->x + drw_x;
+  WinBox.y1 = pDraw->y + drw_y;
+  WinBox.x2 = WinBox.x1 + drw_w;
+  WinBox.y2 = WinBox.y1 + drw_h;
+
+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
+  REGION_NULL(pScreen, &ClipRegion);
+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);
+
+  if(portPriv->pDraw) {
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+  }
+
+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
+     clippedAway = TRUE;
+     goto GET_STILL_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->GetStill)(portPriv->pScrn,
+		vid_x, vid_y, WinBox.x1, WinBox.y1,
+		vid_w, vid_h, drw_w, drw_h,
+		&ClipRegion, portPriv->DevPriv.ptr);
+
+GET_STILL_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  REGION_UNINIT(pScreen, &WinRegion);
+  REGION_UNINIT(pScreen, &ClipRegion);
+
+  return ret;
+}
+
+
+
+static int
+xf86XVStopVideo(
+   ClientPtr client,
+   XvPortPtr pPort,
+   DrawablePtr pDraw
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+
+  if(pDraw->type != DRAWABLE_WINDOW)
+      return BadAlloc;
+
+  xf86XVRemovePortFromWindow((WindowPtr)pDraw, portPriv);
+
+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
+
+  /* Must free resources. */
+
+  if(portPriv->isOn > XV_OFF) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, TRUE);
+	portPriv->isOn = XV_OFF;
+  }
+
+  return Success;
+}
+
+static int
+xf86XVSetPortAttribute(
+   ClientPtr client,
+   XvPortPtr pPort,
+   Atom attribute,
+   INT32 value
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+
+  return((*portPriv->AdaptorRec->SetPortAttribute)(portPriv->pScrn,
+		attribute, value, portPriv->DevPriv.ptr));
+}
+
+
+static int
+xf86XVGetPortAttribute(
+   ClientPtr client,
+   XvPortPtr pPort,
+   Atom attribute,
+   INT32 *p_value
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+
+  return((*portPriv->AdaptorRec->GetPortAttribute)(portPriv->pScrn,
+		attribute, p_value, portPriv->DevPriv.ptr));
+}
+
+
+
+static int
+xf86XVQueryBestSize(
+   ClientPtr client,
+   XvPortPtr pPort,
+   CARD8 motion,
+   CARD16 vid_w, CARD16 vid_h,
+   CARD16 drw_w, CARD16 drw_h,
+   unsigned int *p_w, unsigned int *p_h
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+
+  (*portPriv->AdaptorRec->QueryBestSize)(portPriv->pScrn,
+		(Bool)motion, vid_w, vid_h, drw_w, drw_h,
+		p_w, p_h, portPriv->DevPriv.ptr);
+
+  return Success;
+}
+
+
+static int
+xf86XVPutImage(
+   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 format,
+   unsigned char* data,
+   Bool sync,
+   CARD16 width, CARD16 height
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+  ScreenPtr pScreen;
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  if (pDraw->type != DRAWABLE_WINDOW)
+      return BadAlloc;
+
+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
+
+  pScreen = pDraw->pScreen;
+
+  WinBox.x1 = pDraw->x + drw_x;
+  WinBox.y1 = pDraw->y + drw_y;
+  WinBox.x2 = WinBox.x1 + drw_w;
+  WinBox.y2 = WinBox.y1 + drw_h;
+
+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
+  REGION_NULL(pScreen, &ClipRegion);
+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);
+
+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
+     RegionRec VPReg;
+     BoxRec VPBox;
+
+     VPBox.x1 = portPriv->pScrn->frameX0;
+     VPBox.y1 = portPriv->pScrn->frameY0;
+     VPBox.x2 = portPriv->pScrn->frameX1 + 1;
+     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
+
+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
+     REGION_UNINIT(pScreen, &VPReg);
+  }
+
+  if(portPriv->pDraw) {
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+  }
+
+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
+     clippedAway = TRUE;
+     goto PUT_IMAGE_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
+     {
+	  clippedAway = TRUE;
+	  goto PUT_IMAGE_BAILOUT;
+     }
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->PutImage)(portPriv->pScrn,
+		src_x, src_y, WinBox.x1, WinBox.y1,
+		src_w, src_h, drw_w, drw_h, format->id, data, width, height,
+		sync, &ClipRegion, portPriv->DevPriv.ptr);
+
+  if((ret == Success) &&
+	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_IMAGES)) {
+
+     xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
+     portPriv->isOn = XV_ON;
+     portPriv->pDraw = pDraw;
+     portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
+     portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
+     portPriv->type = 0;  /* no mask means it's transient and should
+			     not be reput once it's removed */
+     pPort->pDraw = pDraw;  /* make sure we can get stop requests */
+  }
+
+PUT_IMAGE_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  REGION_UNINIT(pScreen, &WinRegion);
+  REGION_UNINIT(pScreen, &ClipRegion);
+
+  return ret;
+}
+
+
+static  int
+xf86XVQueryImageAttributes(
+   ClientPtr client,
+   XvPortPtr pPort,
+   XvImagePtr format,
+   CARD16 *width,
+   CARD16 *height,
+   int *pitches,
+   int *offsets
+){
+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
+
+  return (*portPriv->AdaptorRec->QueryImageAttributes)(portPriv->pScrn,
+			format->id, width, height, pitches, offsets);
+}
+
+void
+xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr clipboxes)
+{
+   XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+   DrawablePtr root = &WindowTable[pScreen->myNum]->drawable;
+   XID pval[2];
+   BoxPtr pbox = REGION_RECTS(clipboxes);
+   int i, nbox = REGION_NUM_RECTS(clipboxes);
+   xRectangle *rects;
+
+   if(!xf86Screens[pScreen->myNum]->vtSema) return;
+
+   if(!ScreenPriv->videoGC) {
+       int status;
+       pval[0] = key;
+       pval[1] = IncludeInferiors;
+       ScreenPriv->videoGC = CreateGC(root, GCForeground | GCSubwindowMode,
+				      pval, &status);
+       if(!ScreenPriv->videoGC) return;
+       ValidateGC(root, ScreenPriv->videoGC);
+   } else if (key != ScreenPriv->videoGC->fgPixel){
+       pval[0] = key;
+       ChangeGC(ScreenPriv->videoGC, GCForeground, pval);
+       ValidateGC(root, ScreenPriv->videoGC);
+   }
+
+   rects = ALLOCATE_LOCAL(nbox * sizeof(xRectangle));
+
+   for(i = 0; i < nbox; i++, pbox++) {
+      rects[i].x = pbox->x1;
+      rects[i].y = pbox->y1;
+      rects[i].width = pbox->x2 - pbox->x1;
+      rects[i].height = pbox->y2 - pbox->y1;
+   }
+
+   (*ScreenPriv->videoGC->ops->PolyFillRect)(
+			     root, ScreenPriv->videoGC, nbox, rects);
+
+   DEALLOCATE_LOCAL(rects);
+}
+
+/* xf86XVClipVideoHelper -
+
+   Takes the dst box in standard X BoxRec form (top and left
+   edges inclusive, bottom and right exclusive).  The new dst
+   box is returned.  The source boundaries are given (x1, y1
+   inclusive, x2, y2 exclusive) and returned are the new source
+   boundaries in 16.16 fixed point.
+*/
+
+#define DummyScreen screenInfo.screens[0]
+
+Bool
+xf86XVClipVideoHelper(
+    BoxPtr dst,
+    INT32 *xa,
+    INT32 *xb,
+    INT32 *ya,
+    INT32 *yb,
+    RegionPtr reg,
+    INT32 width,
+    INT32 height
+){
+    double xsw, xdw, ysw, ydw;
+    INT32 delta;
+    BoxPtr extents = REGION_EXTENTS(DummyScreen, reg);
+    int diff;
+
+    xsw = (*xb - *xa) << 16;
+    xdw = dst->x2 - dst->x1;
+    ysw = (*yb - *ya) << 16;
+    ydw = dst->y2 - dst->y1;
+
+    *xa <<= 16; *xb <<= 16;
+    *ya <<= 16; *yb <<= 16;
+
+    diff = extents->x1 - dst->x1;
+    if (diff > 0) {
+	dst->x1 = extents->x1;
+	*xa += (diff * xsw) / xdw;
+    }
+    diff = dst->x2 - extents->x2;
+    if (diff > 0) {
+	dst->x2 = extents->x2;
+	*xb -= (diff * xsw) / xdw;
+    }
+    diff = extents->y1 - dst->y1;
+    if (diff > 0) {
+	dst->y1 = extents->y1;
+	*ya += (diff * ysw) / ydw;
+    }
+    diff = dst->y2 - extents->y2;
+    if (diff > 0) {
+	dst->y2 = extents->y2;
+	*yb -= (diff * ysw) / ydw;
+    }
+
+    if (*xa < 0) {
+	diff = (((-*xa) * xdw) + xsw - 1) / xsw;
+	dst->x1 += diff;
+	*xa += (diff * xsw) / xdw;
+    }
+    delta = *xb - (width << 16);
+    if (delta > 0) {
+	diff = ((delta * xdw) + xsw - 1) / xsw;
+	dst->x2 -= diff;
+	*xb -= (diff * xsw) / xdw;
+    }
+    if (*xa >= *xb) return FALSE;
+
+    if (*ya < 0) {
+	diff = (((-*ya) * ydw) + ysw - 1) / ysw;
+	dst->y1 += diff;
+	*ya += (diff * ysw) / ydw;
+    }
+    delta = *yb - (height << 16);
+    if (delta > 0) {
+	diff = ((delta * ydw) + ysw - 1) / ysw;
+	dst->y2 -= diff;
+	*yb -= (diff * ysw) / ydw;
+    }
+    if (*ya >= *yb) return FALSE;
+
+    if ((dst->x1 > extents->x1) || (dst->x2 < extents->x2) ||
+	(dst->y1 > extents->y1) || (dst->y2 < extents->y2))
+    {
+	RegionRec clipReg;
+	REGION_INIT(DummyScreen, &clipReg, dst, 1);
+	REGION_INTERSECT(DummyScreen, reg, reg, &clipReg);
+	REGION_UNINIT(DummyScreen, &clipReg);
+    }
+    return TRUE;
+}
+
+void
+xf86XVCopyYUV12ToPacked(
+    const void *srcy,
+    const void *srcv,
+    const void *srcu,
+    void *dst,
+    int srcPitchy,
+    int srcPitchuv,
+    int dstPitch,
+    int h,
+    int w
+){
+    CARD32 *Dst;
+    const CARD8 *Y, *U, *V;
+    int i, j;
+
+    w >>= 1;
+
+    for (j = 0;  j < h;  j++) {
+	Dst = dst;
+	Y = srcy;  V = srcv;  U = srcu;
+	i = w;
+	while (i >= 4) {
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+	    Dst[0] = Y[0] | (Y[1] << 16) | (U[0] << 8) | (V[0] << 24);
+	    Dst[1] = Y[2] | (Y[3] << 16) | (U[1] << 8) | (V[1] << 24);
+	    Dst[2] = Y[4] | (Y[5] << 16) | (U[2] << 8) | (V[2] << 24);
+	    Dst[3] = Y[6] | (Y[7] << 16) | (U[3] << 8) | (V[3] << 24);
+#else
+	    /* This assumes a little-endian framebuffer */
+	    Dst[0] = (Y[0] << 24) | (Y[1] << 8) | (U[0] << 16) | V[0];
+	    Dst[1] = (Y[2] << 24) | (Y[3] << 8) | (U[1] << 16) | V[1];
+	    Dst[2] = (Y[4] << 24) | (Y[5] << 8) | (U[2] << 16) | V[2];
+	    Dst[3] = (Y[6] << 24) | (Y[7] << 8) | (U[3] << 16) | V[3];
+#endif
+	    Dst += 4;  Y += 8;  V += 4;  U += 4;
+	    i -= 4;
+	}
+
+	while (i--) {
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+	    Dst[0] = Y[0] | (Y[1] << 16) | (U[0] << 8) | (V[0] << 24);
+#else
+	    /* This assumes a little-endian framebuffer */
+	    Dst[0] = (Y[0] << 24) | (Y[1] << 8) | (U[0] << 16) | V[0];
+#endif
+	    Dst++;  Y += 2;  V++;  U++;
+	}
+
+	dst = (CARD8 *)dst + dstPitch;
+	srcy = (const CARD8 *)srcy + srcPitchy;
+	if (j & 1) {
+	    srcu = (const CARD8 *)srcu + srcPitchuv;
+	    srcv = (const CARD8 *)srcv + srcPitchuv;
+	}
+    }
+}
+
+void
+xf86XVCopyPacked(
+    const void *src,
+    void *dst,
+    int srcPitch,
+    int dstPitch,
+    int h,
+    int w
+){
+    const CARD32 *Src;
+    CARD32 *Dst;
+    int i;
+
+    w >>= 1;
+    while (--h >= 0) {
+	do {
+	    Dst = dst;  Src = src;
+	    i = w;
+	    while (i >= 4) {
+		Dst[0] = Src[0];
+		Dst[1] = Src[1];
+		Dst[2] = Src[2];
+		Dst[3] = Src[3];
+		Dst += 4;  Src += 4;  i -= 4;
+	    }
+	    if (!i) break;
+	    Dst[0] = Src[0];
+	    if (i == 1) break;
+	    Dst[1] = Src[1];
+	    if (i == 2) break;
+	    Dst[2] = Src[2];
+	} while (0);
+
+	src = (const CARD8 *)src + srcPitch;
+	dst = (CARD8 *)dst + dstPitch;
+    }
+}