Synchronised line endinge with release branch

1 files changed, 2190 insertions, 2190 deletions

diff --git a/xorg-server/hw/xfree86/common/xf86xv.c b/xorg-server/hw/xfree86/common/xf86xv.c
index 416842473..b46dfefed 100644
--- a/xorg-server/hw/xfree86/common/xf86xv.c
+++ b/xorg-server/hw/xfree86/common/xf86xv.c
@@ -1,2190 +1,2190 @@
-/*

- * 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).

- */

-

-

-#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"

-#include "xvmodproc.h"

-

-#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 xf86XVPostValidateTree(WindowPtr pWin, WindowPtr pLayerWin, VTKind kind);

-static void xf86XVClipNotify(WindowPtr pWin, int dx, int dy);

-

-#define PostValidateTreeUndefined ((PostValidateTreeProcPtr)-1)

-

-/* ScrnInfoRec functions */

-

-static Bool xf86XVEnterVT(int, int);

-static void xf86XVLeaveVT(int, int);

-static void xf86XVAdjustFrame(int index, int x, int y, int flags);

-static void xf86XVModeSet(ScrnInfoPtr pScrn);

-

-/* misc */

-

-static Bool xf86XVInitAdaptors(ScreenPtr, XF86VideoAdaptorPtr*, int);

-

-

-static DevPrivateKeyRec XF86XVWindowKeyRec;

-#define XF86XVWindowKey (&XF86XVWindowKeyRec)

-

-DevPrivateKey XF86XvScreenKey;

-

-static unsigned long PortResource = 0;

-

-DevPrivateKey (*XvGetScreenKeyProc)(void) = NULL;

-unsigned long (*XvGetRTPortProc)(void) = NULL;

-int (*XvScreenInitProc)(ScreenPtr) = NULL;

-

-#define GET_XV_SCREEN(pScreen) \

-    ((XvScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, XF86XvScreenKey))

-

-#define GET_XF86XV_SCREEN(pScreen) \

-    ((XF86XVScreenPtr)(GET_XV_SCREEN(pScreen)->devPriv.ptr))

-

-#define GET_XF86XV_WINDOW(pWin) \

-    ((XF86XVWindowPtr)dixLookupPrivate(&(pWin)->devPrivates, XF86XVWindowKey))

-

-static xf86XVInitGenericAdaptorPtr *GenDrivers = NULL;

-static int NumGenDrivers = 0;

-

-int

-xf86XVRegisterGenericAdaptorDriver(

-    xf86XVInitGenericAdaptorPtr InitFunc

-){

-  xf86XVInitGenericAdaptorPtr *newdrivers;

-

-  newdrivers = realloc(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 = realloc(*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 DevPrivateKeyRec OffscreenPrivateKeyRec;

-#define OffscreenPrivateKey (&OffscreenPrivateKeyRec)

-#define GetOffscreenImage(pScreen) ((OffscreenImageRec *) dixLookupPrivate(&(pScreen)->devPrivates, OffscreenPrivateKey))

-

-Bool

-xf86XVRegisterOffscreenImages(

-    ScreenPtr pScreen,

-    XF86OffscreenImagePtr images,

-    int num

-){

-    OffscreenImageRec *OffscreenImage;

-    /* This function may be called before xf86XVScreenInit, so there's

-     * no better place than this to call dixRegisterPrivateKey to ensure we

-     * have space reserved. After the first call it is a no-op. */

-    if(!dixRegisterPrivateKey(OffscreenPrivateKey, PRIVATE_SCREEN, sizeof(OffscreenImageRec)) ||

-       !(OffscreenImage = GetOffscreenImage(pScreen)))

-        /* Every X.org driver assumes this function always succeeds, so

-         * just die on allocation failure. */

-        FatalError("Could not allocate private storage for XV offscreen images.\n");

-

-    OffscreenImage->num = num;

-    OffscreenImage->images = images;

-    return TRUE;

-}

-

-XF86OffscreenImagePtr

-xf86XVQueryOffscreenImages(

-   ScreenPtr pScreen,

-   int *num

-){

-    OffscreenImageRec *OffscreenImage = GetOffscreenImage(pScreen);

-    *num = OffscreenImage->num;

-    return OffscreenImage->images;

-}

-

-

-XF86VideoAdaptorPtr

-xf86XVAllocateVideoAdaptorRec(ScrnInfoPtr pScrn)

-{

-    return calloc(1, sizeof(XF86VideoAdaptorRec));

-}

-

-void

-xf86XVFreeVideoAdaptorRec(XF86VideoAdaptorPtr ptr)

-{

-    free(ptr);

-}

-

-

-Bool

-xf86XVScreenInit(

-   ScreenPtr pScreen,

-   XF86VideoAdaptorPtr *adaptors,

-   int num

-){

-  ScrnInfoPtr pScrn;

-  XF86XVScreenPtr ScreenPriv;

-  XvScreenPtr pxvs;

-

-  if(num <= 0 ||

-     !XvGetScreenKeyProc || !XvGetRTPortProc || !XvScreenInitProc)

-	return FALSE;

-

-  if(Success != (*XvScreenInitProc)(pScreen)) return FALSE;

-

-  if (!dixRegisterPrivateKey(&XF86XVWindowKeyRec, PRIVATE_WINDOW, 0))

-      return FALSE;

-

-  XF86XvScreenKey = (*XvGetScreenKeyProc)();

-

-  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 = malloc(sizeof(XF86XVScreenRec));

-  pxvs->devPriv.ptr = (pointer)ScreenPriv;

-

-  if(!ScreenPriv) return FALSE;

-

-  pScrn = xf86Screens[pScreen->myNum];

-

-  ScreenPriv->DestroyWindow = pScreen->DestroyWindow;

-  ScreenPriv->WindowExposures = pScreen->WindowExposures;

-  ScreenPriv->PostValidateTree = PostValidateTreeUndefined;

-  ScreenPriv->ClipNotify = pScreen->ClipNotify;

-  ScreenPriv->EnterVT = pScrn->EnterVT;

-  ScreenPriv->LeaveVT = pScrn->LeaveVT;

-  ScreenPriv->AdjustFrame = pScrn->AdjustFrame;

-  ScreenPriv->ModeSet = pScrn->ModeSet;

-

-  pScreen->DestroyWindow = xf86XVDestroyWindow;

-  pScreen->WindowExposures = xf86XVWindowExposures;

-  pScreen->ClipNotify = xf86XVClipNotify;

-  pScrn->EnterVT = xf86XVEnterVT;

-  pScrn->LeaveVT = xf86XVLeaveVT;

-  if(pScrn->AdjustFrame)

-     pScrn->AdjustFrame = xf86XVAdjustFrame;

-  pScrn->ModeSet = xf86XVModeSet;

-

-  if(!xf86XVInitAdaptors(pScreen, adaptors, num))

-	return FALSE;

-

-  return TRUE;

-}

-

-static void

-xf86XVFreeAdaptor(XvAdaptorPtr pAdaptor)

-{

-   int i;

-

-   free(pAdaptor->name);

-   pAdaptor->name = NULL;

-

-   if(pAdaptor->pEncodings) {

-      XvEncodingPtr pEncode = pAdaptor->pEncodings;

-

-      for(i = 0; i < pAdaptor->nEncodings; i++, pEncode++)

-	  free(pEncode->name);

-      free(pAdaptor->pEncodings);

-      pAdaptor->pEncodings = NULL;

-   }

-

-   free(pAdaptor->pFormats);

-   pAdaptor->pFormats = NULL;

-

-   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)

-		RegionDestroy(pPriv->clientClip);

-	     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)

-		RegionDestroy(pPriv->pCompositeClip);

-	     if (pPriv->ckeyFilled)

-		RegionDestroy(pPriv->ckeyFilled);

-	     free(pPriv);

-	  }

-      }

-      free(pAdaptor->pPorts);

-      pAdaptor->pPorts = NULL;

-   }

-

-   if(pAdaptor->pAttributes) {

-      XvAttributePtr pAttribute = pAdaptor->pAttributes;

-

-      for(i = 0; i < pAdaptor->nAttributes; i++, pAttribute++)

-	  free(pAttribute->name);

-      free(pAdaptor->pAttributes);

-      pAdaptor->pAttributes = NULL;

-   }

-

-   free(pAdaptor->pImages);

-   free(pAdaptor->devPriv.ptr);

-   pAdaptor->pImages = NULL;

-   pAdaptor->devPriv.ptr = NULL;

-}

-

-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 = calloc(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;

-      pa->name = strdup(adaptorPtr->name);

-

-      if(adaptorPtr->nEncodings &&

-	(pEncode = calloc(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;

-	    pe->name = strdup(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 = calloc(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 = calloc(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;

-	    pat->name = strdup(attributePtr->name);

-	}

-	pa->nAttributes = adaptorPtr->nAttributes;

-	pa->pAttributes = pAttribute;

-      }

-

-

-      totFormat = adaptorPtr->nFormats;

-

-      if(!(pFormat = calloc(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 = realloc(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 = calloc(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; /* image/still */

-

-      pa->devPriv.ptr = (pointer)adaptorPriv;

-

-      if(!(pPort = calloc(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 = calloc(1, sizeof(XvPortRecPrivate))))

-		continue;

-

-	  if(!AddResource(pp->id, PortResource, pp)) {

-		free(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 {

-     free(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;

-   Bool		freeCompClip = FALSE;

-

-   if(portPriv->pCompositeClip)

-	return;

-

-   pWin = (WindowPtr)portPriv->pDraw;

-

-   /* 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 = RegionCreate(NullBox, 1);

-   RegionCopy(pCompositeClip, portPriv->clientClip);

-   RegionTranslate(pCompositeClip,

-		   portPriv->pDraw->x, portPriv->pDraw->y);

-   RegionIntersect(pCompositeClip, pregWin, pCompositeClip);

-

-   portPriv->pCompositeClip = pCompositeClip;

-   portPriv->FreeCompositeClip = TRUE;

-

-   if(freeCompClip) {

-	RegionDestroy(pregWin);

-   }

-}

-

-/* Save the current clientClip and update the CompositeClip whenever

-   we have a fresh GC */

-

-static void

-xf86XVCopyClip(

-   XvPortRecPrivatePtr portPriv,

-   GCPtr pGC

-){

-    /* copy the new clip if it exists */

-    if((pGC->clientClipType == CT_REGION) && pGC->clientClip) {

-	if(!portPriv->clientClip)

-	    portPriv->clientClip = RegionCreate(NullBox, 1);

-	/* Note: this is in window coordinates */

-	RegionCopy(portPriv->clientClip, pGC->clientClip);

-	RegionTranslate(portPriv->clientClip,

-			pGC->clipOrg.x, pGC->clipOrg.y);

-    } else if(portPriv->clientClip) { /* free the old clientClip */

-	RegionDestroy(portPriv->clientClip);

-	portPriv->clientClip = NULL;

-    }

-

-    /* get rid of the old clip list */

-    if(portPriv->pCompositeClip && portPriv->FreeCompositeClip) {

-	RegionDestroy(portPriv->pCompositeClip);

-    }

-

-    portPriv->pCompositeClip = pGC->pCompositeClip;

-    portPriv->FreeCompositeClip = FALSE;

-    portPriv->subWindowMode = pGC->subWindowMode;

-}

-

-static void

-xf86XVCopyCompositeClip(XvPortRecPrivatePtr portPriv,

-			GCPtr pGC,

-			DrawablePtr pDraw)

-{

-    if (!portPriv->clientClip)

-	portPriv->clientClip = RegionCreate(NullBox, 1);

-    /* Keep the original GC composite clip around for ReputImage */

-    RegionCopy(portPriv->clientClip, pGC->pCompositeClip);

-    RegionTranslate(portPriv->clientClip,

-		    -pDraw->x, -pDraw->y);

-

-    /* get rid of the old clip list */

-    if (portPriv->pCompositeClip && portPriv->FreeCompositeClip)

-	RegionDestroy(portPriv->pCompositeClip);

-

-    portPriv->pCompositeClip = pGC->pCompositeClip;

-    portPriv->FreeCompositeClip = FALSE;

-    portPriv->subWindowMode = pGC->subWindowMode;

-}

-

-static int

-xf86XVRegetVideo(XvPortRecPrivatePtr portPriv)

-{

-  RegionRec WinRegion;

-  RegionRec ClipRegion;

-  BoxRec WinBox;

-  int ret = Success;

-  Bool clippedAway = FALSE;

-

-  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 */

-  RegionInit(&WinRegion, &WinBox, 1);

-  RegionNull(&ClipRegion);

-  RegionIntersect(&ClipRegion, &WinRegion, portPriv->pCompositeClip);

-

-  /* that's all if it's totally obscured */

-  if(!RegionNotEmpty(&ClipRegion)) {

-	clippedAway = TRUE;

-	goto CLIP_VIDEO_BAILOUT;

-  }

-

-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {

-     RegionSubtract(&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,

-			portPriv->pDraw);

-

-  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;

-

-  RegionUninit(&WinRegion);

-  RegionUninit(&ClipRegion);

-

-  return ret;

-}

-

-

-static int

-xf86XVReputVideo(XvPortRecPrivatePtr portPriv)

-{

-  RegionRec WinRegion;

-  RegionRec ClipRegion;

-  BoxRec WinBox;

-  int ret = Success;

-  Bool clippedAway = FALSE;

-

-  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 */

-  RegionInit(&WinRegion, &WinBox, 1);

-  RegionNull(&ClipRegion);

-  RegionIntersect(&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 + 1;

-     VPBox.y2 = portPriv->pScrn->frameY1 + 1;

-

-     RegionInit(&VPReg, &VPBox, 1);

-     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);

-     RegionUninit(&VPReg);

-  }

-

-  /* that's all if it's totally obscured */

-  if(!RegionNotEmpty(&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 = RegionRects(&ClipRegion);

-     if(  (RegionNumRects(&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) {

-     RegionSubtract(&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,

-			portPriv->pDraw);

-

-  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;

-

-  RegionUninit(&WinRegion);

-  RegionUninit(&ClipRegion);

-

-  return ret;

-}

-

-/* Reput image/still */

-static int

-xf86XVReputImage(XvPortRecPrivatePtr portPriv)

-{

-  RegionRec WinRegion;

-  RegionRec ClipRegion;

-  BoxRec WinBox;

-  int ret = Success;

-  Bool clippedAway = FALSE;

-

-  xf86XVUpdateCompositeClip(portPriv);

-

-  /* the clip can get smaller over time */

-  RegionCopy(portPriv->clientClip, portPriv->pCompositeClip);

-  RegionTranslate(portPriv->clientClip,

-		  -portPriv->pDraw->x, -portPriv->pDraw->y);

-

-  /* 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 */

-  RegionInit(&WinRegion, &WinBox, 1);

-  RegionNull(&ClipRegion);

-  RegionIntersect(&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 + 1;

-     VPBox.y2 = portPriv->pScrn->frameY1 + 1;

-

-     RegionInit(&VPReg, &VPBox, 1);

-     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);

-     RegionUninit(&VPReg);

-  }

-

-  /* that's all if it's totally obscured */

-  if(!RegionNotEmpty(&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 = RegionRects(&ClipRegion);

-     if(  (RegionNumRects(&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) {

-     RegionSubtract(&ClipRegion, &WinRegion, &ClipRegion);

-  }

-

-  ret = (*portPriv->AdaptorRec->ReputImage)(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,

-			portPriv->pDraw);

-

-  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;

-

-  RegionUninit(&WinRegion);

-  RegionUninit(&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 = calloc(1, sizeof(XF86XVWindowRec));

-	if(!winPriv) return BadAlloc;

-	winPriv->PortRec = portPriv;

-	winPriv->next = PrivRoot;

-	dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey, winPriv);

-   }

-

-   portPriv->pDraw = (DrawablePtr)pWin;

-

-   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

-		dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey,

-			      winPriv->next);

-	    free(winPriv);

-	    break;

-	}

-	prevPriv = winPriv;

-	winPriv = winPriv->next;

-     }

-     portPriv->pDraw = NULL;

-     if (portPriv->ckeyFilled) {

-	RegionDestroy(portPriv->ckeyFilled);

-	portPriv->ckeyFilled = NULL;

-     }

-     portPriv->clipChanged = FALSE;

-}

-

-static void

-xf86XVReputOrStopPort(XvPortRecPrivatePtr pPriv,

-		      WindowPtr pWin,

-		      Bool visible)

-{

-    if (!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*/

-	    xf86XVRemovePortFromWindow(pWin, pPriv);

-

-	return;

-    }

-

-    switch (pPriv->type) {

-    case XvInputMask:

-	xf86XVReputVideo(pPriv);

-	break;

-    case XvOutputMask:

-	xf86XVRegetVideo(pPriv);

-	break;

-    default:  /* overlaid still/image*/

-	if (pPriv->AdaptorRec->ReputImage)

-	    xf86XVReputImage(pPriv);

-	break;

-    }

-}

-

-static void

-xf86XVReputOrStopAllPorts(ScrnInfoPtr pScrn, Bool onlyChanged)

-{

-    ScreenPtr pScreen = pScrn->pScreen;

-    XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);

-    XvAdaptorPtr pa;

-    int c, i;

-

-    for (c = pxvs->nAdaptors, pa = pxvs->pAdaptors; c > 0; c--, pa++) {

-	XvPortPtr pPort = pa->pPorts;

-

-	for (i = pa->nPorts; i > 0; i--, pPort++) {

-	    XvPortRecPrivatePtr pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;

-	    WindowPtr pWin = (WindowPtr)pPriv->pDraw;

-	    Bool visible;

-

-	    if (pPriv->isOn == XV_OFF || !pWin)

-		continue;

-

-	    if (onlyChanged && !pPriv->clipChanged)

-		continue;

-

-	    visible = pWin->visibility == VisibilityUnobscured ||

-		      pWin->visibility == VisibilityPartiallyObscured;

-

-	    /*

-	     * Stop and remove still/images if

-	     * ReputImage isn't supported.

-	     */

-	    if (!pPriv->type && !pPriv->AdaptorRec->ReputImage)

-		visible = FALSE;

-

-	    xf86XVReputOrStopPort(pPriv, pWin, visible);

-

-	    pPriv->clipChanged = FALSE;

-	}

-    }

-}

-

-/****  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;

-     free(tmp);

-  }

-

-  dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey, NULL);

-

-  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;

-  ret = (*pScreen->DestroyWindow)(pWin);

-  pScreen->DestroyWindow = xf86XVDestroyWindow;

-

-  return ret;

-}

-

-static void

-xf86XVPostValidateTree(WindowPtr pWin, WindowPtr pLayerWin, VTKind kind)

-{

-    ScreenPtr pScreen;

-    XF86XVScreenPtr ScreenPriv;

-    ScrnInfoPtr pScrn;

-

-    if (pWin)

-	pScreen = pWin->drawable.pScreen;

-    else

-	pScreen = pLayerWin->drawable.pScreen;

-

-    ScreenPriv = GET_XF86XV_SCREEN(pScreen);

-    pScrn = xf86Screens[pScreen->myNum];

-

-    xf86XVReputOrStopAllPorts(pScrn, TRUE);

-

-    pScreen->PostValidateTree = ScreenPriv->PostValidateTree;

-    if (pScreen->PostValidateTree) {

-	(*pScreen->PostValidateTree)(pWin, pLayerWin, kind);

-    }

-    ScreenPriv->PostValidateTree = PostValidateTreeUndefined;

-}

-

-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);

-  XvPortRecPrivatePtr pPriv;

-  Bool AreasExposed;

-

-  AreasExposed = (WinPriv && reg1 && RegionNotEmpty(reg1));

-

-  pScreen->WindowExposures = ScreenPriv->WindowExposures;

-  (*pScreen->WindowExposures)(pWin, reg1, reg2);

-  pScreen->WindowExposures = xf86XVWindowExposures;

-

-  /* filter out XClearWindow/Area */

-  if (!pWin->valdata) return;

-

-  while(WinPriv) {

-     Bool visible = TRUE;

-

-     pPriv = WinPriv->PortRec;

-

-     /*

-      * Stop and remove still/images if areas were exposed and

-      * ReputImage isn't supported.

-      */

-     if (!pPriv->type && !pPriv->AdaptorRec->ReputImage)

-	visible = !AreasExposed;

-

-     /*

-      * Subtract exposed areas from overlaid image to match textured video

-      * behavior.

-      */

-     if (!pPriv->type && pPriv->clientClip)

-	    RegionSubtract(pPriv->clientClip, pPriv->clientClip, reg1);

-

-     if (visible && pPriv->ckeyFilled) {

-        RegionRec tmp;

-        RegionNull(&tmp);

-        RegionCopy(&tmp, reg1);

-        RegionTranslate(&tmp, pWin->drawable.x, pWin->drawable.y);

-        RegionSubtract(pPriv->ckeyFilled, pPriv->ckeyFilled, &tmp);

-     }

-

-     WinPriv = WinPriv->next;

-     xf86XVReputOrStopPort(pPriv, pWin, visible);

-

-     pPriv->clipChanged = FALSE;

-  }

-}

-

-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);

-  XvPortRecPrivatePtr pPriv;

-

-  while(WinPriv) {

-     pPriv = WinPriv->PortRec;

-

-     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)

-	RegionDestroy(pPriv->pCompositeClip);

-

-     pPriv->pCompositeClip = NULL;

-

-     if (pPriv->AdaptorRec->ClipNotify)

-        (*pPriv->AdaptorRec->ClipNotify)(pPriv->pScrn, pPriv->DevPriv.ptr,

-                                         pWin, dx, dy);

-

-     pPriv->clipChanged = TRUE;

-

-     if (ScreenPriv->PostValidateTree == PostValidateTreeUndefined) {

-        ScreenPriv->PostValidateTree = pScreen->PostValidateTree;

-        pScreen->PostValidateTree = xf86XVPostValidateTree;

-     }

-

-     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;

-

-  if(!ScreenPriv) return TRUE;

-

-  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;

-  pScreen->WindowExposures = ScreenPriv->WindowExposures;

-  pScreen->ClipNotify = ScreenPriv->ClipNotify;

-

-  pScrn->EnterVT = ScreenPriv->EnterVT;

-  pScrn->LeaveVT = ScreenPriv->LeaveVT;

-  pScrn->AdjustFrame = ScreenPriv->AdjustFrame;

-  pScrn->ModeSet = ScreenPriv->ModeSet;

-

-  for(c = 0, pa = pxvs->pAdaptors; c < pxvs->nAdaptors; c++, pa++) {

-       xf86XVFreeAdaptor(pa);

-  }

-

-  free(pxvs->pAdaptors);

-  free(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)

-{

-    ScrnInfoPtr pScrn = xf86Screens[index];

-    ScreenPtr pScreen = screenInfo.screens[index];

-    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

-    Bool ret;

-

-    pScrn->EnterVT = ScreenPriv->EnterVT;

-    ret = (*ScreenPriv->EnterVT)(index, flags);

-    ScreenPriv->EnterVT = pScrn->EnterVT;

-    pScrn->EnterVT = xf86XVEnterVT;

-

-    if(ret) WalkTree(pScreen, xf86XVReputAllVideo, 0);

-

-    return ret;

-}

-

-static void

-xf86XVLeaveVT(int index, int flags)

-{

-    ScrnInfoPtr pScrn = xf86Screens[index];

-    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)

-		    RegionDestroy(pPriv->pCompositeClip);

-

-		pPriv->pCompositeClip = NULL;

-

-		if(!pPriv->type && pPriv->pDraw) { /* still */

-		    xf86XVRemovePortFromWindow((WindowPtr)pPriv->pDraw, pPriv);

-		}

-	    }

-	}

-    }

-

-    pScrn->LeaveVT = ScreenPriv->LeaveVT;

-    (*ScreenPriv->LeaveVT)(index, flags);

-    ScreenPriv->LeaveVT = pScrn->LeaveVT;

-    pScrn->LeaveVT = xf86XVLeaveVT;

-}

-

-static void

-xf86XVAdjustFrame(int index, int x, int y, int flags)

-{

-  ScrnInfoPtr pScrn = xf86Screens[index];

-  ScreenPtr pScreen = pScrn->pScreen;

-  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

-

-  if(ScreenPriv->AdjustFrame) {

-	pScrn->AdjustFrame = ScreenPriv->AdjustFrame;

-	(*pScrn->AdjustFrame)(index, x, y, flags);

-	pScrn->AdjustFrame = xf86XVAdjustFrame;

-  }

-

-  xf86XVReputOrStopAllPorts(pScrn, FALSE);

-}

-

-static void

-xf86XVModeSet(ScrnInfoPtr pScrn)

-{

-    ScreenPtr pScreen = pScrn->pScreen;

-    XF86XVScreenPtr ScreenPriv;

-

-    /* Can be called before pScrn->pScreen is set */

-    if (!pScreen)

-	return;

-

-    ScreenPriv = GET_XF86XV_SCREEN(pScreen);

-

-    if (ScreenPriv->ModeSet) {

-	pScrn->ModeSet = ScreenPriv->ModeSet;

-	(*pScrn->ModeSet)(pScrn);

-	pScrn->ModeSet = xf86XVModeSet;

-    }

-

-    xf86XVReputOrStopAllPorts(pScrn, FALSE);

-}

-

-/**** 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->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);

-  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 ? */

-

-  WinBox.x1 = pDraw->x + drw_x;

-  WinBox.y1 = pDraw->y + drw_y;

-  WinBox.x2 = WinBox.x1 + drw_w;

-  WinBox.y2 = WinBox.y1 + drw_h;

-

-  xf86XVCopyCompositeClip(portPriv, pGC, pDraw);

-

-  RegionInit(&WinRegion, &WinBox, 1);

-  RegionNull(&ClipRegion);

-  RegionIntersect(&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;

-

-     RegionInit(&VPReg, &VPBox, 1);

-     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);

-     RegionUninit(&VPReg);

-  }

-

-  if(portPriv->pDraw) {

-     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);

-  }

-

-  if(!RegionNotEmpty(&ClipRegion)) {

-     clippedAway = TRUE;

-     goto PUT_STILL_BAILOUT;

-  }

-

-  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {

-     BoxPtr clipBox = RegionRects(&ClipRegion);

-     if(  (RegionNumRects(&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) {

-     RegionSubtract(&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,

-		pDraw);

-

-  if((ret == Success) &&

-	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_STILLS)) {

-

-     xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);

-     portPriv->isOn = XV_ON;

-     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;

-     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;

-  }

-

-  /* This clip was copied and only good for one shot */

-  if(!portPriv->FreeCompositeClip)

-     portPriv->pCompositeClip = NULL;

-

-  RegionUninit(&WinRegion);

-  RegionUninit(&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->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);

-  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 ? */

-

-  WinBox.x1 = pDraw->x + drw_x;

-  WinBox.y1 = pDraw->y + drw_y;

-  WinBox.x2 = WinBox.x1 + drw_w;

-  WinBox.y2 = WinBox.y1 + drw_h;

-

-  RegionInit(&WinRegion, &WinBox, 1);

-  RegionNull(&ClipRegion);

-  RegionIntersect(&ClipRegion, &WinRegion, pGC->pCompositeClip);

-

-  if(portPriv->pDraw) {

-     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);

-  }

-

-  if(!RegionNotEmpty(&ClipRegion)) {

-     clippedAway = TRUE;

-     goto GET_STILL_BAILOUT;

-  }

-

-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {

-     RegionSubtract(&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,

-		pDraw);

-

-GET_STILL_BAILOUT:

-

-  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {

-	(*portPriv->AdaptorRec->StopVideo)(

-		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);

-	portPriv->isOn = XV_PENDING;

-  }

-

-  RegionUninit(&WinRegion);

-  RegionUninit(&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);

-  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 ? */

-

-  xf86XVCopyCompositeClip(portPriv, pGC, pDraw);

-

-  WinBox.x1 = pDraw->x + drw_x;

-  WinBox.y1 = pDraw->y + drw_y;

-  WinBox.x2 = WinBox.x1 + drw_w;

-  WinBox.y2 = WinBox.y1 + drw_h;

-

-  RegionInit(&WinRegion, &WinBox, 1);

-  RegionNull(&ClipRegion);

-  RegionIntersect(&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;

-

-     RegionInit(&VPReg, &VPBox, 1);

-     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);

-     RegionUninit(&VPReg);

-  }

-

-  /* 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 */

-  ret =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);

-  if(ret != Success) goto PUT_IMAGE_BAILOUT;

-

-  if(!RegionNotEmpty(&ClipRegion)) {

-     clippedAway = TRUE;

-     goto PUT_IMAGE_BAILOUT;

-  }

-

-  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {

-     BoxPtr clipBox = RegionRects(&ClipRegion);

-     if(  (RegionNumRects(&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) {

-     RegionSubtract(&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,

-		pDraw);

-

-  if((ret == Success) &&

-	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_IMAGES)) {

-

-     portPriv->isOn = XV_ON;

-     portPriv->vid_x = src_x;  portPriv->vid_y = src_y;

-     portPriv->vid_w = src_w;  portPriv->vid_h = src_h;

-     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;

-  }

-

-  /* This clip was copied and only good for one shot */

-  if(!portPriv->FreeCompositeClip)

-     portPriv->pCompositeClip = NULL;

-

-  RegionUninit(&WinRegion);

-  RegionUninit(&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

-xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr fillboxes)

-{

-   ScreenPtr pScreen = pDraw->pScreen;

-   ChangeGCVal pval[2];

-   BoxPtr pbox = RegionRects(fillboxes);

-   int i, nbox = RegionNumRects(fillboxes);

-   xRectangle *rects;

-   GCPtr gc;

-

-   if(!xf86Screens[pScreen->myNum]->vtSema) return;

-

-   gc = GetScratchGC(pDraw->depth, pScreen);

-   pval[0].val = key;

-   pval[1].val = IncludeInferiors;

-   (void) ChangeGC(NullClient, gc, GCForeground|GCSubwindowMode, pval);

-   ValidateGC(pDraw, gc);

-

-   rects = malloc(nbox * sizeof(xRectangle));

-

-   for(i = 0; i < nbox; i++, pbox++) 

-   {

-      rects[i].x = pbox->x1 - pDraw->x;

-      rects[i].y = pbox->y1 - pDraw->y;

-      rects[i].width = pbox->x2 - pbox->x1;

-      rects[i].height = pbox->y2 - pbox->y1;

-   }

-   

-   (*gc->ops->PolyFillRect)(pDraw, gc, nbox, rects);

-   

-   free(rects);

-   FreeScratchGC (gc);

-}

-

-void

-xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr fillboxes)

-{

-    xf86XVFillKeyHelperDrawable (&pScreen->root->drawable, key, fillboxes);

-}

-

-void

-xf86XVFillKeyHelperPort (DrawablePtr pDraw, pointer data, CARD32 key, RegionPtr clipboxes, Bool fillEverything)

-{

-    WindowPtr pWin = (WindowPtr)pDraw;

-    XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);

-    XvPortRecPrivatePtr portPriv = NULL;

-    RegionRec reg;

-    RegionPtr fillboxes;

-

-    while (WinPriv) {

-	XvPortRecPrivatePtr pPriv = WinPriv->PortRec;

-

-	if (data == pPriv->DevPriv.ptr) {

-	    portPriv = pPriv;

-	    break;

-	}

-

-	WinPriv = WinPriv->next;

-    }

-

-    if (!portPriv)

-	return;

-

-    if (!portPriv->ckeyFilled)

-	portPriv->ckeyFilled = RegionCreate(NULL, 0);

-

-    if (!fillEverything) {

-	RegionNull(&reg);

-	fillboxes = &reg;

-	RegionSubtract(fillboxes, clipboxes, portPriv->ckeyFilled);

-

-	if (!RegionNotEmpty(fillboxes))

-	    goto out;

-    } else

-	fillboxes = clipboxes;

-

-

-    RegionCopy(portPriv->ckeyFilled, clipboxes);

-

-    xf86XVFillKeyHelperDrawable(pDraw, key, fillboxes);

-out:

-    if (!fillEverything)

-        RegionUninit(&reg);

-}

-

-

-/* 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.

-*/

-

-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 = RegionExtents(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;

-	RegionInit(&clipReg, dst, 1);

-	RegionIntersect(reg, reg, &clipReg);

-	RegionUninit(&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;

-    }

-}

+/*
+ * 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).
+ */
+
+
+#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"
+#include "xvmodproc.h"
+
+#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 xf86XVPostValidateTree(WindowPtr pWin, WindowPtr pLayerWin, VTKind kind);
+static void xf86XVClipNotify(WindowPtr pWin, int dx, int dy);
+
+#define PostValidateTreeUndefined ((PostValidateTreeProcPtr)-1)
+
+/* ScrnInfoRec functions */
+
+static Bool xf86XVEnterVT(int, int);
+static void xf86XVLeaveVT(int, int);
+static void xf86XVAdjustFrame(int index, int x, int y, int flags);
+static void xf86XVModeSet(ScrnInfoPtr pScrn);
+
+/* misc */
+
+static Bool xf86XVInitAdaptors(ScreenPtr, XF86VideoAdaptorPtr*, int);
+
+
+static DevPrivateKeyRec XF86XVWindowKeyRec;
+#define XF86XVWindowKey (&XF86XVWindowKeyRec)
+
+DevPrivateKey XF86XvScreenKey;
+
+static unsigned long PortResource = 0;
+
+DevPrivateKey (*XvGetScreenKeyProc)(void) = NULL;
+unsigned long (*XvGetRTPortProc)(void) = NULL;
+int (*XvScreenInitProc)(ScreenPtr) = NULL;
+
+#define GET_XV_SCREEN(pScreen) \
+    ((XvScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, XF86XvScreenKey))
+
+#define GET_XF86XV_SCREEN(pScreen) \
+    ((XF86XVScreenPtr)(GET_XV_SCREEN(pScreen)->devPriv.ptr))
+
+#define GET_XF86XV_WINDOW(pWin) \
+    ((XF86XVWindowPtr)dixLookupPrivate(&(pWin)->devPrivates, XF86XVWindowKey))
+
+static xf86XVInitGenericAdaptorPtr *GenDrivers = NULL;
+static int NumGenDrivers = 0;
+
+int
+xf86XVRegisterGenericAdaptorDriver(
+    xf86XVInitGenericAdaptorPtr InitFunc
+){
+  xf86XVInitGenericAdaptorPtr *newdrivers;
+
+  newdrivers = realloc(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 = realloc(*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 DevPrivateKeyRec OffscreenPrivateKeyRec;
+#define OffscreenPrivateKey (&OffscreenPrivateKeyRec)
+#define GetOffscreenImage(pScreen) ((OffscreenImageRec *) dixLookupPrivate(&(pScreen)->devPrivates, OffscreenPrivateKey))
+
+Bool
+xf86XVRegisterOffscreenImages(
+    ScreenPtr pScreen,
+    XF86OffscreenImagePtr images,
+    int num
+){
+    OffscreenImageRec *OffscreenImage;
+    /* This function may be called before xf86XVScreenInit, so there's
+     * no better place than this to call dixRegisterPrivateKey to ensure we
+     * have space reserved. After the first call it is a no-op. */
+    if(!dixRegisterPrivateKey(OffscreenPrivateKey, PRIVATE_SCREEN, sizeof(OffscreenImageRec)) ||
+       !(OffscreenImage = GetOffscreenImage(pScreen)))
+        /* Every X.org driver assumes this function always succeeds, so
+         * just die on allocation failure. */
+        FatalError("Could not allocate private storage for XV offscreen images.\n");
+
+    OffscreenImage->num = num;
+    OffscreenImage->images = images;
+    return TRUE;
+}
+
+XF86OffscreenImagePtr
+xf86XVQueryOffscreenImages(
+   ScreenPtr pScreen,
+   int *num
+){
+    OffscreenImageRec *OffscreenImage = GetOffscreenImage(pScreen);
+    *num = OffscreenImage->num;
+    return OffscreenImage->images;
+}
+
+
+XF86VideoAdaptorPtr
+xf86XVAllocateVideoAdaptorRec(ScrnInfoPtr pScrn)
+{
+    return calloc(1, sizeof(XF86VideoAdaptorRec));
+}
+
+void
+xf86XVFreeVideoAdaptorRec(XF86VideoAdaptorPtr ptr)
+{
+    free(ptr);
+}
+
+
+Bool
+xf86XVScreenInit(
+   ScreenPtr pScreen,
+   XF86VideoAdaptorPtr *adaptors,
+   int num
+){
+  ScrnInfoPtr pScrn;
+  XF86XVScreenPtr ScreenPriv;
+  XvScreenPtr pxvs;
+
+  if(num <= 0 ||
+     !XvGetScreenKeyProc || !XvGetRTPortProc || !XvScreenInitProc)
+	return FALSE;
+
+  if(Success != (*XvScreenInitProc)(pScreen)) return FALSE;
+
+  if (!dixRegisterPrivateKey(&XF86XVWindowKeyRec, PRIVATE_WINDOW, 0))
+      return FALSE;
+
+  XF86XvScreenKey = (*XvGetScreenKeyProc)();
+
+  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 = malloc(sizeof(XF86XVScreenRec));
+  pxvs->devPriv.ptr = (pointer)ScreenPriv;
+
+  if(!ScreenPriv) return FALSE;
+
+  pScrn = xf86Screens[pScreen->myNum];
+
+  ScreenPriv->DestroyWindow = pScreen->DestroyWindow;
+  ScreenPriv->WindowExposures = pScreen->WindowExposures;
+  ScreenPriv->PostValidateTree = PostValidateTreeUndefined;
+  ScreenPriv->ClipNotify = pScreen->ClipNotify;
+  ScreenPriv->EnterVT = pScrn->EnterVT;
+  ScreenPriv->LeaveVT = pScrn->LeaveVT;
+  ScreenPriv->AdjustFrame = pScrn->AdjustFrame;
+  ScreenPriv->ModeSet = pScrn->ModeSet;
+
+  pScreen->DestroyWindow = xf86XVDestroyWindow;
+  pScreen->WindowExposures = xf86XVWindowExposures;
+  pScreen->ClipNotify = xf86XVClipNotify;
+  pScrn->EnterVT = xf86XVEnterVT;
+  pScrn->LeaveVT = xf86XVLeaveVT;
+  if(pScrn->AdjustFrame)
+     pScrn->AdjustFrame = xf86XVAdjustFrame;
+  pScrn->ModeSet = xf86XVModeSet;
+
+  if(!xf86XVInitAdaptors(pScreen, adaptors, num))
+	return FALSE;
+
+  return TRUE;
+}
+
+static void
+xf86XVFreeAdaptor(XvAdaptorPtr pAdaptor)
+{
+   int i;
+
+   free(pAdaptor->name);
+   pAdaptor->name = NULL;
+
+   if(pAdaptor->pEncodings) {
+      XvEncodingPtr pEncode = pAdaptor->pEncodings;
+
+      for(i = 0; i < pAdaptor->nEncodings; i++, pEncode++)
+	  free(pEncode->name);
+      free(pAdaptor->pEncodings);
+      pAdaptor->pEncodings = NULL;
+   }
+
+   free(pAdaptor->pFormats);
+   pAdaptor->pFormats = NULL;
+
+   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)
+		RegionDestroy(pPriv->clientClip);
+	     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
+		RegionDestroy(pPriv->pCompositeClip);
+	     if (pPriv->ckeyFilled)
+		RegionDestroy(pPriv->ckeyFilled);
+	     free(pPriv);
+	  }
+      }
+      free(pAdaptor->pPorts);
+      pAdaptor->pPorts = NULL;
+   }
+
+   if(pAdaptor->pAttributes) {
+      XvAttributePtr pAttribute = pAdaptor->pAttributes;
+
+      for(i = 0; i < pAdaptor->nAttributes; i++, pAttribute++)
+	  free(pAttribute->name);
+      free(pAdaptor->pAttributes);
+      pAdaptor->pAttributes = NULL;
+   }
+
+   free(pAdaptor->pImages);
+   free(pAdaptor->devPriv.ptr);
+   pAdaptor->pImages = NULL;
+   pAdaptor->devPriv.ptr = NULL;
+}
+
+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 = calloc(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;
+      pa->name = strdup(adaptorPtr->name);
+
+      if(adaptorPtr->nEncodings &&
+	(pEncode = calloc(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;
+	    pe->name = strdup(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 = calloc(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 = calloc(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;
+	    pat->name = strdup(attributePtr->name);
+	}
+	pa->nAttributes = adaptorPtr->nAttributes;
+	pa->pAttributes = pAttribute;
+      }
+
+
+      totFormat = adaptorPtr->nFormats;
+
+      if(!(pFormat = calloc(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 = realloc(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 = calloc(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; /* image/still */
+
+      pa->devPriv.ptr = (pointer)adaptorPriv;
+
+      if(!(pPort = calloc(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 = calloc(1, sizeof(XvPortRecPrivate))))
+		continue;
+
+	  if(!AddResource(pp->id, PortResource, pp)) {
+		free(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 {
+     free(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;
+   Bool		freeCompClip = FALSE;
+
+   if(portPriv->pCompositeClip)
+	return;
+
+   pWin = (WindowPtr)portPriv->pDraw;
+
+   /* 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 = RegionCreate(NullBox, 1);
+   RegionCopy(pCompositeClip, portPriv->clientClip);
+   RegionTranslate(pCompositeClip,
+		   portPriv->pDraw->x, portPriv->pDraw->y);
+   RegionIntersect(pCompositeClip, pregWin, pCompositeClip);
+
+   portPriv->pCompositeClip = pCompositeClip;
+   portPriv->FreeCompositeClip = TRUE;
+
+   if(freeCompClip) {
+	RegionDestroy(pregWin);
+   }
+}
+
+/* Save the current clientClip and update the CompositeClip whenever
+   we have a fresh GC */
+
+static void
+xf86XVCopyClip(
+   XvPortRecPrivatePtr portPriv,
+   GCPtr pGC
+){
+    /* copy the new clip if it exists */
+    if((pGC->clientClipType == CT_REGION) && pGC->clientClip) {
+	if(!portPriv->clientClip)
+	    portPriv->clientClip = RegionCreate(NullBox, 1);
+	/* Note: this is in window coordinates */
+	RegionCopy(portPriv->clientClip, pGC->clientClip);
+	RegionTranslate(portPriv->clientClip,
+			pGC->clipOrg.x, pGC->clipOrg.y);
+    } else if(portPriv->clientClip) { /* free the old clientClip */
+	RegionDestroy(portPriv->clientClip);
+	portPriv->clientClip = NULL;
+    }
+
+    /* get rid of the old clip list */
+    if(portPriv->pCompositeClip && portPriv->FreeCompositeClip) {
+	RegionDestroy(portPriv->pCompositeClip);
+    }
+
+    portPriv->pCompositeClip = pGC->pCompositeClip;
+    portPriv->FreeCompositeClip = FALSE;
+    portPriv->subWindowMode = pGC->subWindowMode;
+}
+
+static void
+xf86XVCopyCompositeClip(XvPortRecPrivatePtr portPriv,
+			GCPtr pGC,
+			DrawablePtr pDraw)
+{
+    if (!portPriv->clientClip)
+	portPriv->clientClip = RegionCreate(NullBox, 1);
+    /* Keep the original GC composite clip around for ReputImage */
+    RegionCopy(portPriv->clientClip, pGC->pCompositeClip);
+    RegionTranslate(portPriv->clientClip,
+		    -pDraw->x, -pDraw->y);
+
+    /* get rid of the old clip list */
+    if (portPriv->pCompositeClip && portPriv->FreeCompositeClip)
+	RegionDestroy(portPriv->pCompositeClip);
+
+    portPriv->pCompositeClip = pGC->pCompositeClip;
+    portPriv->FreeCompositeClip = FALSE;
+    portPriv->subWindowMode = pGC->subWindowMode;
+}
+
+static int
+xf86XVRegetVideo(XvPortRecPrivatePtr portPriv)
+{
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  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 */
+  RegionInit(&WinRegion, &WinBox, 1);
+  RegionNull(&ClipRegion);
+  RegionIntersect(&ClipRegion, &WinRegion, portPriv->pCompositeClip);
+
+  /* that's all if it's totally obscured */
+  if(!RegionNotEmpty(&ClipRegion)) {
+	clippedAway = TRUE;
+	goto CLIP_VIDEO_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     RegionSubtract(&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,
+			portPriv->pDraw);
+
+  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;
+
+  RegionUninit(&WinRegion);
+  RegionUninit(&ClipRegion);
+
+  return ret;
+}
+
+
+static int
+xf86XVReputVideo(XvPortRecPrivatePtr portPriv)
+{
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  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 */
+  RegionInit(&WinRegion, &WinBox, 1);
+  RegionNull(&ClipRegion);
+  RegionIntersect(&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 + 1;
+     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
+
+     RegionInit(&VPReg, &VPBox, 1);
+     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);
+     RegionUninit(&VPReg);
+  }
+
+  /* that's all if it's totally obscured */
+  if(!RegionNotEmpty(&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 = RegionRects(&ClipRegion);
+     if(  (RegionNumRects(&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) {
+     RegionSubtract(&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,
+			portPriv->pDraw);
+
+  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;
+
+  RegionUninit(&WinRegion);
+  RegionUninit(&ClipRegion);
+
+  return ret;
+}
+
+/* Reput image/still */
+static int
+xf86XVReputImage(XvPortRecPrivatePtr portPriv)
+{
+  RegionRec WinRegion;
+  RegionRec ClipRegion;
+  BoxRec WinBox;
+  int ret = Success;
+  Bool clippedAway = FALSE;
+
+  xf86XVUpdateCompositeClip(portPriv);
+
+  /* the clip can get smaller over time */
+  RegionCopy(portPriv->clientClip, portPriv->pCompositeClip);
+  RegionTranslate(portPriv->clientClip,
+		  -portPriv->pDraw->x, -portPriv->pDraw->y);
+
+  /* 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 */
+  RegionInit(&WinRegion, &WinBox, 1);
+  RegionNull(&ClipRegion);
+  RegionIntersect(&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 + 1;
+     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
+
+     RegionInit(&VPReg, &VPBox, 1);
+     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);
+     RegionUninit(&VPReg);
+  }
+
+  /* that's all if it's totally obscured */
+  if(!RegionNotEmpty(&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 = RegionRects(&ClipRegion);
+     if(  (RegionNumRects(&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) {
+     RegionSubtract(&ClipRegion, &WinRegion, &ClipRegion);
+  }
+
+  ret = (*portPriv->AdaptorRec->ReputImage)(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,
+			portPriv->pDraw);
+
+  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;
+
+  RegionUninit(&WinRegion);
+  RegionUninit(&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 = calloc(1, sizeof(XF86XVWindowRec));
+	if(!winPriv) return BadAlloc;
+	winPriv->PortRec = portPriv;
+	winPriv->next = PrivRoot;
+	dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey, winPriv);
+   }
+
+   portPriv->pDraw = (DrawablePtr)pWin;
+
+   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
+		dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey,
+			      winPriv->next);
+	    free(winPriv);
+	    break;
+	}
+	prevPriv = winPriv;
+	winPriv = winPriv->next;
+     }
+     portPriv->pDraw = NULL;
+     if (portPriv->ckeyFilled) {
+	RegionDestroy(portPriv->ckeyFilled);
+	portPriv->ckeyFilled = NULL;
+     }
+     portPriv->clipChanged = FALSE;
+}
+
+static void
+xf86XVReputOrStopPort(XvPortRecPrivatePtr pPriv,
+		      WindowPtr pWin,
+		      Bool visible)
+{
+    if (!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*/
+	    xf86XVRemovePortFromWindow(pWin, pPriv);
+
+	return;
+    }
+
+    switch (pPriv->type) {
+    case XvInputMask:
+	xf86XVReputVideo(pPriv);
+	break;
+    case XvOutputMask:
+	xf86XVRegetVideo(pPriv);
+	break;
+    default:  /* overlaid still/image*/
+	if (pPriv->AdaptorRec->ReputImage)
+	    xf86XVReputImage(pPriv);
+	break;
+    }
+}
+
+static void
+xf86XVReputOrStopAllPorts(ScrnInfoPtr pScrn, Bool onlyChanged)
+{
+    ScreenPtr pScreen = pScrn->pScreen;
+    XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
+    XvAdaptorPtr pa;
+    int c, i;
+
+    for (c = pxvs->nAdaptors, pa = pxvs->pAdaptors; c > 0; c--, pa++) {
+	XvPortPtr pPort = pa->pPorts;
+
+	for (i = pa->nPorts; i > 0; i--, pPort++) {
+	    XvPortRecPrivatePtr pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
+	    WindowPtr pWin = (WindowPtr)pPriv->pDraw;
+	    Bool visible;
+
+	    if (pPriv->isOn == XV_OFF || !pWin)
+		continue;
+
+	    if (onlyChanged && !pPriv->clipChanged)
+		continue;
+
+	    visible = pWin->visibility == VisibilityUnobscured ||
+		      pWin->visibility == VisibilityPartiallyObscured;
+
+	    /*
+	     * Stop and remove still/images if
+	     * ReputImage isn't supported.
+	     */
+	    if (!pPriv->type && !pPriv->AdaptorRec->ReputImage)
+		visible = FALSE;
+
+	    xf86XVReputOrStopPort(pPriv, pWin, visible);
+
+	    pPriv->clipChanged = FALSE;
+	}
+    }
+}
+
+/****  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;
+     free(tmp);
+  }
+
+  dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey, NULL);
+
+  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
+  ret = (*pScreen->DestroyWindow)(pWin);
+  pScreen->DestroyWindow = xf86XVDestroyWindow;
+
+  return ret;
+}
+
+static void
+xf86XVPostValidateTree(WindowPtr pWin, WindowPtr pLayerWin, VTKind kind)
+{
+    ScreenPtr pScreen;
+    XF86XVScreenPtr ScreenPriv;
+    ScrnInfoPtr pScrn;
+
+    if (pWin)
+	pScreen = pWin->drawable.pScreen;
+    else
+	pScreen = pLayerWin->drawable.pScreen;
+
+    ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+    pScrn = xf86Screens[pScreen->myNum];
+
+    xf86XVReputOrStopAllPorts(pScrn, TRUE);
+
+    pScreen->PostValidateTree = ScreenPriv->PostValidateTree;
+    if (pScreen->PostValidateTree) {
+	(*pScreen->PostValidateTree)(pWin, pLayerWin, kind);
+    }
+    ScreenPriv->PostValidateTree = PostValidateTreeUndefined;
+}
+
+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);
+  XvPortRecPrivatePtr pPriv;
+  Bool AreasExposed;
+
+  AreasExposed = (WinPriv && reg1 && RegionNotEmpty(reg1));
+
+  pScreen->WindowExposures = ScreenPriv->WindowExposures;
+  (*pScreen->WindowExposures)(pWin, reg1, reg2);
+  pScreen->WindowExposures = xf86XVWindowExposures;
+
+  /* filter out XClearWindow/Area */
+  if (!pWin->valdata) return;
+
+  while(WinPriv) {
+     Bool visible = TRUE;
+
+     pPriv = WinPriv->PortRec;
+
+     /*
+      * Stop and remove still/images if areas were exposed and
+      * ReputImage isn't supported.
+      */
+     if (!pPriv->type && !pPriv->AdaptorRec->ReputImage)
+	visible = !AreasExposed;
+
+     /*
+      * Subtract exposed areas from overlaid image to match textured video
+      * behavior.
+      */
+     if (!pPriv->type && pPriv->clientClip)
+	    RegionSubtract(pPriv->clientClip, pPriv->clientClip, reg1);
+
+     if (visible && pPriv->ckeyFilled) {
+        RegionRec tmp;
+        RegionNull(&tmp);
+        RegionCopy(&tmp, reg1);
+        RegionTranslate(&tmp, pWin->drawable.x, pWin->drawable.y);
+        RegionSubtract(pPriv->ckeyFilled, pPriv->ckeyFilled, &tmp);
+     }
+
+     WinPriv = WinPriv->next;
+     xf86XVReputOrStopPort(pPriv, pWin, visible);
+
+     pPriv->clipChanged = FALSE;
+  }
+}
+
+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);
+  XvPortRecPrivatePtr pPriv;
+
+  while(WinPriv) {
+     pPriv = WinPriv->PortRec;
+
+     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
+	RegionDestroy(pPriv->pCompositeClip);
+
+     pPriv->pCompositeClip = NULL;
+
+     if (pPriv->AdaptorRec->ClipNotify)
+        (*pPriv->AdaptorRec->ClipNotify)(pPriv->pScrn, pPriv->DevPriv.ptr,
+                                         pWin, dx, dy);
+
+     pPriv->clipChanged = TRUE;
+
+     if (ScreenPriv->PostValidateTree == PostValidateTreeUndefined) {
+        ScreenPriv->PostValidateTree = pScreen->PostValidateTree;
+        pScreen->PostValidateTree = xf86XVPostValidateTree;
+     }
+
+     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;
+
+  if(!ScreenPriv) return TRUE;
+
+  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
+  pScreen->WindowExposures = ScreenPriv->WindowExposures;
+  pScreen->ClipNotify = ScreenPriv->ClipNotify;
+
+  pScrn->EnterVT = ScreenPriv->EnterVT;
+  pScrn->LeaveVT = ScreenPriv->LeaveVT;
+  pScrn->AdjustFrame = ScreenPriv->AdjustFrame;
+  pScrn->ModeSet = ScreenPriv->ModeSet;
+
+  for(c = 0, pa = pxvs->pAdaptors; c < pxvs->nAdaptors; c++, pa++) {
+       xf86XVFreeAdaptor(pa);
+  }
+
+  free(pxvs->pAdaptors);
+  free(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)
+{
+    ScrnInfoPtr pScrn = xf86Screens[index];
+    ScreenPtr pScreen = screenInfo.screens[index];
+    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+    Bool ret;
+
+    pScrn->EnterVT = ScreenPriv->EnterVT;
+    ret = (*ScreenPriv->EnterVT)(index, flags);
+    ScreenPriv->EnterVT = pScrn->EnterVT;
+    pScrn->EnterVT = xf86XVEnterVT;
+
+    if(ret) WalkTree(pScreen, xf86XVReputAllVideo, 0);
+
+    return ret;
+}
+
+static void
+xf86XVLeaveVT(int index, int flags)
+{
+    ScrnInfoPtr pScrn = xf86Screens[index];
+    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)
+		    RegionDestroy(pPriv->pCompositeClip);
+
+		pPriv->pCompositeClip = NULL;
+
+		if(!pPriv->type && pPriv->pDraw) { /* still */
+		    xf86XVRemovePortFromWindow((WindowPtr)pPriv->pDraw, pPriv);
+		}
+	    }
+	}
+    }
+
+    pScrn->LeaveVT = ScreenPriv->LeaveVT;
+    (*ScreenPriv->LeaveVT)(index, flags);
+    ScreenPriv->LeaveVT = pScrn->LeaveVT;
+    pScrn->LeaveVT = xf86XVLeaveVT;
+}
+
+static void
+xf86XVAdjustFrame(int index, int x, int y, int flags)
+{
+  ScrnInfoPtr pScrn = xf86Screens[index];
+  ScreenPtr pScreen = pScrn->pScreen;
+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+
+  if(ScreenPriv->AdjustFrame) {
+	pScrn->AdjustFrame = ScreenPriv->AdjustFrame;
+	(*pScrn->AdjustFrame)(index, x, y, flags);
+	pScrn->AdjustFrame = xf86XVAdjustFrame;
+  }
+
+  xf86XVReputOrStopAllPorts(pScrn, FALSE);
+}
+
+static void
+xf86XVModeSet(ScrnInfoPtr pScrn)
+{
+    ScreenPtr pScreen = pScrn->pScreen;
+    XF86XVScreenPtr ScreenPriv;
+
+    /* Can be called before pScrn->pScreen is set */
+    if (!pScreen)
+	return;
+
+    ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+
+    if (ScreenPriv->ModeSet) {
+	pScrn->ModeSet = ScreenPriv->ModeSet;
+	(*pScrn->ModeSet)(pScrn);
+	pScrn->ModeSet = xf86XVModeSet;
+    }
+
+    xf86XVReputOrStopAllPorts(pScrn, FALSE);
+}
+
+/**** 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->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);
+  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 ? */
+
+  WinBox.x1 = pDraw->x + drw_x;
+  WinBox.y1 = pDraw->y + drw_y;
+  WinBox.x2 = WinBox.x1 + drw_w;
+  WinBox.y2 = WinBox.y1 + drw_h;
+
+  xf86XVCopyCompositeClip(portPriv, pGC, pDraw);
+
+  RegionInit(&WinRegion, &WinBox, 1);
+  RegionNull(&ClipRegion);
+  RegionIntersect(&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;
+
+     RegionInit(&VPReg, &VPBox, 1);
+     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);
+     RegionUninit(&VPReg);
+  }
+
+  if(portPriv->pDraw) {
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+  }
+
+  if(!RegionNotEmpty(&ClipRegion)) {
+     clippedAway = TRUE;
+     goto PUT_STILL_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
+     BoxPtr clipBox = RegionRects(&ClipRegion);
+     if(  (RegionNumRects(&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) {
+     RegionSubtract(&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,
+		pDraw);
+
+  if((ret == Success) &&
+	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_STILLS)) {
+
+     xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
+     portPriv->isOn = XV_ON;
+     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;
+     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;
+  }
+
+  /* This clip was copied and only good for one shot */
+  if(!portPriv->FreeCompositeClip)
+     portPriv->pCompositeClip = NULL;
+
+  RegionUninit(&WinRegion);
+  RegionUninit(&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->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);
+  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 ? */
+
+  WinBox.x1 = pDraw->x + drw_x;
+  WinBox.y1 = pDraw->y + drw_y;
+  WinBox.x2 = WinBox.x1 + drw_w;
+  WinBox.y2 = WinBox.y1 + drw_h;
+
+  RegionInit(&WinRegion, &WinBox, 1);
+  RegionNull(&ClipRegion);
+  RegionIntersect(&ClipRegion, &WinRegion, pGC->pCompositeClip);
+
+  if(portPriv->pDraw) {
+     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
+  }
+
+  if(!RegionNotEmpty(&ClipRegion)) {
+     clippedAway = TRUE;
+     goto GET_STILL_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
+     RegionSubtract(&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,
+		pDraw);
+
+GET_STILL_BAILOUT:
+
+  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
+	(*portPriv->AdaptorRec->StopVideo)(
+		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
+	portPriv->isOn = XV_PENDING;
+  }
+
+  RegionUninit(&WinRegion);
+  RegionUninit(&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);
+  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 ? */
+
+  xf86XVCopyCompositeClip(portPriv, pGC, pDraw);
+
+  WinBox.x1 = pDraw->x + drw_x;
+  WinBox.y1 = pDraw->y + drw_y;
+  WinBox.x2 = WinBox.x1 + drw_w;
+  WinBox.y2 = WinBox.y1 + drw_h;
+
+  RegionInit(&WinRegion, &WinBox, 1);
+  RegionNull(&ClipRegion);
+  RegionIntersect(&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;
+
+     RegionInit(&VPReg, &VPBox, 1);
+     RegionIntersect(&ClipRegion, &ClipRegion, &VPReg);
+     RegionUninit(&VPReg);
+  }
+
+  /* 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 */
+  ret =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
+  if(ret != Success) goto PUT_IMAGE_BAILOUT;
+
+  if(!RegionNotEmpty(&ClipRegion)) {
+     clippedAway = TRUE;
+     goto PUT_IMAGE_BAILOUT;
+  }
+
+  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
+     BoxPtr clipBox = RegionRects(&ClipRegion);
+     if(  (RegionNumRects(&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) {
+     RegionSubtract(&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,
+		pDraw);
+
+  if((ret == Success) &&
+	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_IMAGES)) {
+
+     portPriv->isOn = XV_ON;
+     portPriv->vid_x = src_x;  portPriv->vid_y = src_y;
+     portPriv->vid_w = src_w;  portPriv->vid_h = src_h;
+     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;
+  }
+
+  /* This clip was copied and only good for one shot */
+  if(!portPriv->FreeCompositeClip)
+     portPriv->pCompositeClip = NULL;
+
+  RegionUninit(&WinRegion);
+  RegionUninit(&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
+xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr fillboxes)
+{
+   ScreenPtr pScreen = pDraw->pScreen;
+   ChangeGCVal pval[2];
+   BoxPtr pbox = RegionRects(fillboxes);
+   int i, nbox = RegionNumRects(fillboxes);
+   xRectangle *rects;
+   GCPtr gc;
+
+   if(!xf86Screens[pScreen->myNum]->vtSema) return;
+
+   gc = GetScratchGC(pDraw->depth, pScreen);
+   pval[0].val = key;
+   pval[1].val = IncludeInferiors;
+   (void) ChangeGC(NullClient, gc, GCForeground|GCSubwindowMode, pval);
+   ValidateGC(pDraw, gc);
+
+   rects = malloc(nbox * sizeof(xRectangle));
+
+   for(i = 0; i < nbox; i++, pbox++) 
+   {
+      rects[i].x = pbox->x1 - pDraw->x;
+      rects[i].y = pbox->y1 - pDraw->y;
+      rects[i].width = pbox->x2 - pbox->x1;
+      rects[i].height = pbox->y2 - pbox->y1;
+   }
+   
+   (*gc->ops->PolyFillRect)(pDraw, gc, nbox, rects);
+   
+   free(rects);
+   FreeScratchGC (gc);
+}
+
+void
+xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr fillboxes)
+{
+    xf86XVFillKeyHelperDrawable (&pScreen->root->drawable, key, fillboxes);
+}
+
+void
+xf86XVFillKeyHelperPort (DrawablePtr pDraw, pointer data, CARD32 key, RegionPtr clipboxes, Bool fillEverything)
+{
+    WindowPtr pWin = (WindowPtr)pDraw;
+    XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
+    XvPortRecPrivatePtr portPriv = NULL;
+    RegionRec reg;
+    RegionPtr fillboxes;
+
+    while (WinPriv) {
+	XvPortRecPrivatePtr pPriv = WinPriv->PortRec;
+
+	if (data == pPriv->DevPriv.ptr) {
+	    portPriv = pPriv;
+	    break;
+	}
+
+	WinPriv = WinPriv->next;
+    }
+
+    if (!portPriv)
+	return;
+
+    if (!portPriv->ckeyFilled)
+	portPriv->ckeyFilled = RegionCreate(NULL, 0);
+
+    if (!fillEverything) {
+	RegionNull(&reg);
+	fillboxes = &reg;
+	RegionSubtract(fillboxes, clipboxes, portPriv->ckeyFilled);
+
+	if (!RegionNotEmpty(fillboxes))
+	    goto out;
+    } else
+	fillboxes = clipboxes;
+
+
+    RegionCopy(portPriv->ckeyFilled, clipboxes);
+
+    xf86XVFillKeyHelperDrawable(pDraw, key, fillboxes);
+out:
+    if (!fillEverything)
+        RegionUninit(&reg);
+}
+
+
+/* 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.
+*/
+
+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 = RegionExtents(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;
+	RegionInit(&clipReg, dst, 1);
+	RegionIntersect(reg, reg, &clipReg);
+	RegionUninit(&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;
+    }
+}