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

1 files changed, 2102 insertions, 2101 deletions

diff --git a/xorg-server/hw/xfree86/common/xf86xv.c b/xorg-server/hw/xfree86/common/xf86xv.c
index 2cc2f6093..e35b8d667 100644
--- a/xorg-server/hw/xfree86/common/xf86xv.c
+++ b/xorg-server/hw/xfree86/common/xf86xv.c
@@ -1,2101 +1,2102 @@
-/*
- * 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 xf86XVClipNotify(WindowPtr pWin, int dx, int dy);
-
-/* ScrnInfoRec functions */
-
-static Bool xf86XVEnterVT(int, int);
-static void xf86XVLeaveVT(int, int);
-static void xf86XVAdjustFrame(int index, int x, int y, int flags);
-
-/* misc */
-
-static Bool xf86XVInitAdaptors(ScreenPtr, XF86VideoAdaptorPtr*, int);
-
-
-static int XF86XVWindowKeyIndex;
-static DevPrivateKey XF86XVWindowKey = &XF86XVWindowKeyIndex;
-static int XF86XvScreenKeyIndex;
-DevPrivateKey XF86XvScreenKey = &XF86XvScreenKeyIndex;
-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 = xrealloc(GenDrivers, sizeof(xf86XVInitGenericAdaptorPtr) *
-			(1 + NumGenDrivers));
-  if (!newdrivers)
-    return 0;
-  GenDrivers = newdrivers;
-
-  GenDrivers[NumGenDrivers++] = InitFunc;
-
-  return 1;
-}
-
-int
-xf86XVListGenericAdaptors(
-    ScrnInfoPtr pScrn,
-    XF86VideoAdaptorPtr **adaptors
-){
-    int i,j,n,num;
-    XF86VideoAdaptorPtr *DrivAdap,*new;
-
-    num = 0;
-    *adaptors = NULL;
-    /*
-     * The v4l driver registers itself first, but can use surfaces registered
-     * by other drivers.  So, call the v4l driver last.
-     */
-    for (i = NumGenDrivers; --i >= 0; ) {
-	DrivAdap = NULL;
-	n = (*GenDrivers[i])(pScrn, &DrivAdap);
-	if (0 == n)
-	    continue;
-	new = xrealloc(*adaptors, sizeof(XF86VideoAdaptorPtr) * (num+n));
-	if (NULL == new)
-	    continue;
-	*adaptors = new;
-	for (j = 0; j < n; j++, num++)
-	    (*adaptors)[num] = DrivAdap[j];
-    }
-    return num;
-}
-
-
-/****************  Offscreen surface stuff *******************/
-
-typedef struct {
-   XF86OffscreenImagePtr images;
-   int num;
-} OffscreenImageRec;
-
-static int OffscreenPrivateKeyIndex;
-static DevPrivateKey OffscreenPrivateKey = &OffscreenPrivateKeyIndex;
-#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 dixRequestPrivate to ensure we
-     * have space reserved. After the first call it is a no-op. */
-    if(!dixRequestPrivate(OffscreenPrivateKey, 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 xcalloc(1, sizeof(XF86VideoAdaptorRec));
-}
-
-void
-xf86XVFreeVideoAdaptorRec(XF86VideoAdaptorPtr ptr)
-{
-    xfree(ptr);
-}
-
-
-Bool
-xf86XVScreenInit(
-   ScreenPtr pScreen,
-   XF86VideoAdaptorPtr *adaptors,
-   int num
-){
-  ScrnInfoPtr pScrn;
-  XF86XVScreenPtr ScreenPriv;
-  XvScreenPtr pxvs;
-
-  if(num <= 0 ||
-     !XvGetScreenKeyProc || !XvGetRTPortProc || !XvScreenInitProc)
-	return FALSE;
-
-  if(Success != (*XvScreenInitProc)(pScreen)) 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 = xalloc(sizeof(XF86XVScreenRec));
-  pxvs->devPriv.ptr = (pointer)ScreenPriv;
-
-  if(!ScreenPriv) return FALSE;
-
-  pScrn = xf86Screens[pScreen->myNum];
-
-  ScreenPriv->videoGC = NULL;  /* for the helper */
-
-  ScreenPriv->DestroyWindow = pScreen->DestroyWindow;
-  ScreenPriv->WindowExposures = pScreen->WindowExposures;
-  ScreenPriv->ClipNotify = pScreen->ClipNotify;
-  ScreenPriv->EnterVT = pScrn->EnterVT;
-  ScreenPriv->LeaveVT = pScrn->LeaveVT;
-  ScreenPriv->AdjustFrame = pScrn->AdjustFrame;
-
-  pScreen->DestroyWindow = xf86XVDestroyWindow;
-  pScreen->WindowExposures = xf86XVWindowExposures;
-  pScreen->ClipNotify = xf86XVClipNotify;
-  pScrn->EnterVT = xf86XVEnterVT;
-  pScrn->LeaveVT = xf86XVLeaveVT;
-  if(pScrn->AdjustFrame)
-     pScrn->AdjustFrame = xf86XVAdjustFrame;
-
-  if(!xf86XVInitAdaptors(pScreen, adaptors, num))
-	return FALSE;
-
-  return TRUE;
-}
-
-static void
-xf86XVFreeAdaptor(XvAdaptorPtr pAdaptor)
-{
-   int i;
-
-   xfree(pAdaptor->name);
-
-   if(pAdaptor->pEncodings) {
-      XvEncodingPtr pEncode = pAdaptor->pEncodings;
-
-      for(i = 0; i < pAdaptor->nEncodings; i++, pEncode++)
-	  xfree(pEncode->name);
-      xfree(pAdaptor->pEncodings);
-   }
-
-   xfree(pAdaptor->pFormats);
-
-   if(pAdaptor->pPorts) {
-      XvPortPtr pPort = pAdaptor->pPorts;
-      XvPortRecPrivatePtr pPriv;
-
-      for(i = 0; i < pAdaptor->nPorts; i++, pPort++) {
-	  pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
-	  if(pPriv) {
-	     if(pPriv->clientClip)
-		REGION_DESTROY(pAdaptor->pScreen, pPriv->clientClip);
-	     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
-		REGION_DESTROY(pAdaptor->pScreen, pPriv->pCompositeClip);
-	     xfree(pPriv);
-	  }
-      }
-      xfree(pAdaptor->pPorts);
-   }
-
-   if(pAdaptor->nAttributes) {
-      XvAttributePtr pAttribute = pAdaptor->pAttributes;
-
-      for(i = 0; i < pAdaptor->nAttributes; i++, pAttribute++)
-	  xfree(pAttribute->name);
-      xfree(pAdaptor->pAttributes);
-   }
-
-   xfree(pAdaptor->pImages);
-   xfree(pAdaptor->devPriv.ptr);
-}
-
-static Bool
-xf86XVInitAdaptors(
-   ScreenPtr pScreen,
-   XF86VideoAdaptorPtr *infoPtr,
-   int number
-) {
-  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
-  ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-  XF86VideoAdaptorPtr adaptorPtr;
-  XvAdaptorPtr pAdaptor, pa;
-  XvAdaptorRecPrivatePtr adaptorPriv;
-  int na, numAdaptor;
-  XvPortRecPrivatePtr portPriv;
-  XvPortPtr pPort, pp;
-  int numPort;
-  XF86AttributePtr attributePtr;
-  XvAttributePtr pAttribute, pat;
-  XF86VideoFormatPtr formatPtr;
-  XvFormatPtr pFormat, pf;
-  int numFormat, totFormat;
-  XF86VideoEncodingPtr encodingPtr;
-  XvEncodingPtr pEncode, pe;
-  XF86ImagePtr imagePtr;
-  XvImagePtr pImage, pi;
-  int numVisuals;
-  VisualPtr pVisual;
-  int i;
-
-  pxvs->nAdaptors = 0;
-  pxvs->pAdaptors = NULL;
-
-  if(!(pAdaptor = xcalloc(number, sizeof(XvAdaptorRec))))
-      return FALSE;
-
-  for(pa = pAdaptor, na = 0, numAdaptor = 0; na < number; na++, adaptorPtr++) {
-      adaptorPtr = infoPtr[na];
-
-      if(!adaptorPtr->StopVideo || !adaptorPtr->SetPortAttribute ||
-	 !adaptorPtr->GetPortAttribute || !adaptorPtr->QueryBestSize)
-	   continue;
-
-      /* client libs expect at least one encoding */
-      if(!adaptorPtr->nEncodings || !adaptorPtr->pEncodings)
-	   continue;
-
-      pa->type = adaptorPtr->type;
-
-      if(!adaptorPtr->PutVideo && !adaptorPtr->GetVideo)
-	 pa->type &= ~XvVideoMask;
-
-      if(!adaptorPtr->PutStill && !adaptorPtr->GetStill)
-	 pa->type &= ~XvStillMask;
-
-      if(!adaptorPtr->PutImage || !adaptorPtr->QueryImageAttributes)
-	 pa->type &= ~XvImageMask;
-
-      if(!adaptorPtr->PutVideo && !adaptorPtr->PutImage &&
-							  !adaptorPtr->PutStill)
-	 pa->type &= ~XvInputMask;
-
-      if(!adaptorPtr->GetVideo && !adaptorPtr->GetStill)
-	 pa->type &= ~XvOutputMask;
-
-      if(!(adaptorPtr->type & (XvPixmapMask | XvWindowMask)))
-	  continue;
-      if(!(adaptorPtr->type & (XvImageMask | XvVideoMask | XvStillMask)))
-	  continue;
-
-      pa->pScreen = pScreen;
-      pa->ddAllocatePort = xf86XVAllocatePort;
-      pa->ddFreePort = xf86XVFreePort;
-      pa->ddPutVideo = xf86XVPutVideo;
-      pa->ddPutStill = xf86XVPutStill;
-      pa->ddGetVideo = xf86XVGetVideo;
-      pa->ddGetStill = xf86XVGetStill;
-      pa->ddStopVideo = xf86XVStopVideo;
-      pa->ddPutImage = xf86XVPutImage;
-      pa->ddSetPortAttribute = xf86XVSetPortAttribute;
-      pa->ddGetPortAttribute = xf86XVGetPortAttribute;
-      pa->ddQueryBestSize = xf86XVQueryBestSize;
-      pa->ddQueryImageAttributes = xf86XVQueryImageAttributes;
-      if((pa->name = xalloc(strlen(adaptorPtr->name) + 1)))
-	  strcpy(pa->name, adaptorPtr->name);
-
-      if(adaptorPtr->nEncodings &&
-	(pEncode = xcalloc(adaptorPtr->nEncodings, sizeof(XvEncodingRec)))) {
-
-	for(pe = pEncode, encodingPtr = adaptorPtr->pEncodings, i = 0;
-	    i < adaptorPtr->nEncodings; pe++, i++, encodingPtr++)
-	{
-	    pe->id = encodingPtr->id;
-	    pe->pScreen = pScreen;
-	    if((pe->name = xalloc(strlen(encodingPtr->name) + 1)))
-		strcpy(pe->name, encodingPtr->name);
-	    pe->width = encodingPtr->width;
-	    pe->height = encodingPtr->height;
-	    pe->rate.numerator = encodingPtr->rate.numerator;
-	    pe->rate.denominator = encodingPtr->rate.denominator;
-	}
-	pa->nEncodings = adaptorPtr->nEncodings;
-	pa->pEncodings = pEncode;
-      }
-
-      if(adaptorPtr->nImages &&
-	 (pImage = xcalloc(adaptorPtr->nImages, sizeof(XvImageRec)))) {
-
-	  for(i = 0, pi = pImage, imagePtr = adaptorPtr->pImages;
-	      i < adaptorPtr->nImages; i++, pi++, imagePtr++)
-	  {
-	     pi->id = imagePtr->id;
-	     pi->type = imagePtr->type;
-	     pi->byte_order = imagePtr->byte_order;
-	     memcpy(pi->guid, imagePtr->guid, 16);
-	     pi->bits_per_pixel = imagePtr->bits_per_pixel;
-	     pi->format = imagePtr->format;
-	     pi->num_planes = imagePtr->num_planes;
-	     pi->depth = imagePtr->depth;
-	     pi->red_mask = imagePtr->red_mask;
-	     pi->green_mask = imagePtr->green_mask;
-	     pi->blue_mask = imagePtr->blue_mask;
-	     pi->y_sample_bits = imagePtr->y_sample_bits;
-	     pi->u_sample_bits = imagePtr->u_sample_bits;
-	     pi->v_sample_bits = imagePtr->v_sample_bits;
-	     pi->horz_y_period = imagePtr->horz_y_period;
-	     pi->horz_u_period = imagePtr->horz_u_period;
-	     pi->horz_v_period = imagePtr->horz_v_period;
-	     pi->vert_y_period = imagePtr->vert_y_period;
-	     pi->vert_u_period = imagePtr->vert_u_period;
-	     pi->vert_v_period = imagePtr->vert_v_period;
-	     memcpy(pi->component_order, imagePtr->component_order, 32);
-	     pi->scanline_order = imagePtr->scanline_order;
-	  }
-	  pa->nImages = adaptorPtr->nImages;
-	  pa->pImages = pImage;
-      }
-
-      if(adaptorPtr->nAttributes &&
-	(pAttribute = xcalloc(adaptorPtr->nAttributes, sizeof(XvAttributeRec))))
-      {
-	for(pat = pAttribute, attributePtr = adaptorPtr->pAttributes, i = 0;
-	    i < adaptorPtr->nAttributes; pat++, i++, attributePtr++)
-	{
-	    pat->flags = attributePtr->flags;
-	    pat->min_value = attributePtr->min_value;
-	    pat->max_value = attributePtr->max_value;
-	    if((pat->name = xalloc(strlen(attributePtr->name) + 1)))
-		strcpy(pat->name, attributePtr->name);
-	}
-	pa->nAttributes = adaptorPtr->nAttributes;
-	pa->pAttributes = pAttribute;
-      }
-
-
-      totFormat = adaptorPtr->nFormats;
-
-      if(!(pFormat = xcalloc(totFormat, sizeof(XvFormatRec)))) {
-	  xf86XVFreeAdaptor(pa);
-	  continue;
-      }
-      for(pf = pFormat, i = 0, numFormat = 0, formatPtr = adaptorPtr->pFormats;
-	  i < adaptorPtr->nFormats; i++, formatPtr++)
-      {
-	  numVisuals = pScreen->numVisuals;
-	  pVisual = pScreen->visuals;
-
-	  while(numVisuals--) {
-	      if((pVisual->class == formatPtr->class) &&
-		 (pVisual->nplanes == formatPtr->depth)) {
-
-		   if(numFormat >= totFormat) {
-			void *moreSpace;
-			totFormat *= 2;
-			moreSpace = xrealloc(pFormat,
-					     totFormat * sizeof(XvFormatRec));
-			if(!moreSpace) break;
-			pFormat = moreSpace;
-			pf = pFormat + numFormat;
-		   }
-
-		   pf->visual = pVisual->vid;
-		   pf->depth = formatPtr->depth;
-
-		   pf++;
-		   numFormat++;
-	      }
-	      pVisual++;
-	  }
-      }
-      pa->nFormats = numFormat;
-      pa->pFormats = pFormat;
-      if(!numFormat) {
-	  xf86XVFreeAdaptor(pa);
-	  continue;
-      }
-
-      if(!(adaptorPriv = xcalloc(1, sizeof(XvAdaptorRecPrivate)))) {
-	  xf86XVFreeAdaptor(pa);
-	  continue;
-      }
-
-      adaptorPriv->flags = adaptorPtr->flags;
-      adaptorPriv->PutVideo = adaptorPtr->PutVideo;
-      adaptorPriv->PutStill = adaptorPtr->PutStill;
-      adaptorPriv->GetVideo = adaptorPtr->GetVideo;
-      adaptorPriv->GetStill = adaptorPtr->GetStill;
-      adaptorPriv->StopVideo = adaptorPtr->StopVideo;
-      adaptorPriv->SetPortAttribute = adaptorPtr->SetPortAttribute;
-      adaptorPriv->GetPortAttribute = adaptorPtr->GetPortAttribute;
-      adaptorPriv->QueryBestSize = adaptorPtr->QueryBestSize;
-      adaptorPriv->QueryImageAttributes = adaptorPtr->QueryImageAttributes;
-      adaptorPriv->PutImage = adaptorPtr->PutImage;
-      adaptorPriv->ReputImage = adaptorPtr->ReputImage;
-
-      pa->devPriv.ptr = (pointer)adaptorPriv;
-
-      if(!(pPort = xcalloc(adaptorPtr->nPorts, sizeof(XvPortRec)))) {
-	  xf86XVFreeAdaptor(pa);
-	  continue;
-      }
-      for(pp = pPort, i = 0, numPort = 0;
-	  i < adaptorPtr->nPorts; i++) {
-
-	  if(!(pp->id = FakeClientID(0)))
-		continue;
-
-	  if(!(portPriv = xcalloc(1, sizeof(XvPortRecPrivate))))
-		continue;
-
-	  if(!AddResource(pp->id, PortResource, pp)) {
-		xfree(portPriv);
-		continue;
-	  }
-
-	  pp->pAdaptor = pa;
-	  pp->pNotify = (XvPortNotifyPtr)NULL;
-	  pp->pDraw = (DrawablePtr)NULL;
-	  pp->client = (ClientPtr)NULL;
-	  pp->grab.client = (ClientPtr)NULL;
-	  pp->time = currentTime;
-	  pp->devPriv.ptr = portPriv;
-
-	  portPriv->pScrn = pScrn;
-	  portPriv->AdaptorRec = adaptorPriv;
-	  portPriv->DevPriv.ptr = adaptorPtr->pPortPrivates[i].ptr;
-
-	  pp++;
-	  numPort++;
-      }
-      pa->nPorts = numPort;
-      pa->pPorts = pPort;
-      if(!numPort) {
-	  xf86XVFreeAdaptor(pa);
-	  continue;
-      }
-
-      pa->base_id = pPort->id;
-
-      pa++;
-      numAdaptor++;
-  }
-
-  if(numAdaptor) {
-      pxvs->nAdaptors = numAdaptor;
-      pxvs->pAdaptors = pAdaptor;
-  } else {
-     xfree(pAdaptor);
-     return FALSE;
-  }
-
-  return TRUE;
-}
-
-/* Video should be clipped to the intersection of the window cliplist
-   and the client cliplist specified in the GC for which the video was
-   initialized.  When we need to reclip a window, the GC that started
-   the video may not even be around anymore.  That's why we save the
-   client clip from the GC when the video is initialized.  We then
-   use xf86XVUpdateCompositeClip to calculate the new composite clip
-   when we need it.  This is different from what DEC did.  They saved
-   the GC and used it's clip list when they needed to reclip the window,
-   even if the client clip was different from the one the video was
-   initialized with.  If the original GC was destroyed, they had to stop
-   the video.  I like the new method better (MArk).
-
-   This function only works for windows.  Will need to rewrite when
-   (if) we support pixmap rendering.
-*/
-
-static void
-xf86XVUpdateCompositeClip(XvPortRecPrivatePtr portPriv)
-{
-   RegionPtr	pregWin, pCompositeClip;
-   WindowPtr	pWin;
-   ScreenPtr	pScreen;
-   Bool		freeCompClip = FALSE;
-
-   if(portPriv->pCompositeClip)
-	return;
-
-   pWin = (WindowPtr)portPriv->pDraw;
-   pScreen = pWin->drawable.pScreen;
-
-   /* get window clip list */
-   if(portPriv->subWindowMode == IncludeInferiors) {
-	pregWin = NotClippedByChildren(pWin);
-	freeCompClip = TRUE;
-   } else
-	pregWin = &pWin->clipList;
-
-   if(!portPriv->clientClip) {
-	portPriv->pCompositeClip = pregWin;
-	portPriv->FreeCompositeClip = freeCompClip;
-	return;
-   }
-
-   pCompositeClip = REGION_CREATE(pScreen, NullBox, 1);
-   REGION_COPY(pScreen, pCompositeClip, portPriv->clientClip);
-   REGION_TRANSLATE(pScreen, pCompositeClip,
-			portPriv->pDraw->x + portPriv->clipOrg.x,
-			portPriv->pDraw->y + portPriv->clipOrg.y);
-   REGION_INTERSECT(pScreen, pCompositeClip, pregWin, pCompositeClip);
-
-   portPriv->pCompositeClip = pCompositeClip;
-   portPriv->FreeCompositeClip = TRUE;
-
-   if(freeCompClip) {
-	REGION_DESTROY(pScreen, pregWin);
-   }
-}
-
-/* Save the current clientClip and update the CompositeClip whenever
-   we have a fresh GC */
-
-static void
-xf86XVCopyClip(
-   XvPortRecPrivatePtr portPriv,
-   GCPtr pGC
-){
-    /* copy the new clip if it exists */
-    if((pGC->clientClipType == CT_REGION) && pGC->clientClip) {
-	if(!portPriv->clientClip)
-	    portPriv->clientClip = REGION_CREATE(pScreen, NullBox, 1);
-	/* Note: this is in window coordinates */
-	REGION_COPY(pScreen, portPriv->clientClip, pGC->clientClip);
-    } else if(portPriv->clientClip) { /* free the old clientClip */
-	REGION_DESTROY(pScreen, portPriv->clientClip);
-	portPriv->clientClip = NULL;
-    }
-
-    /* get rid of the old clip list */
-    if(portPriv->pCompositeClip && portPriv->FreeCompositeClip) {
-	REGION_DESTROY(pScreen, portPriv->pCompositeClip);
-    }
-
-    portPriv->clipOrg = pGC->clipOrg;
-    portPriv->pCompositeClip = pGC->pCompositeClip;
-    portPriv->FreeCompositeClip = FALSE;
-    portPriv->subWindowMode = pGC->subWindowMode;
-}
-
-static int
-xf86XVRegetVideo(XvPortRecPrivatePtr portPriv)
-{
-  RegionRec WinRegion;
-  RegionRec ClipRegion;
-  BoxRec WinBox;
-  ScreenPtr pScreen;
-  int ret = Success;
-  Bool clippedAway = FALSE;
-
-  pScreen = portPriv->pDraw->pScreen;
-  xf86XVUpdateCompositeClip(portPriv);
-
-  /* translate the video region to the screen */
-  WinBox.x1 = portPriv->pDraw->x + portPriv->drw_x;
-  WinBox.y1 = portPriv->pDraw->y + portPriv->drw_y;
-  WinBox.x2 = WinBox.x1 + portPriv->drw_w;
-  WinBox.y2 = WinBox.y1 + portPriv->drw_h;
-
-  /* clip to the window composite clip */
-  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
-  REGION_NULL(pScreen, &ClipRegion);
-  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);
-
-  /* that's all if it's totally obscured */
-  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
-	clippedAway = TRUE;
-	goto CLIP_VIDEO_BAILOUT;
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
-     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
-  }
-
-  ret = (*portPriv->AdaptorRec->GetVideo)(portPriv->pScrn,
-			portPriv->vid_x, portPriv->vid_y,
-			WinBox.x1, WinBox.y1,
-			portPriv->vid_w, portPriv->vid_h,
-			portPriv->drw_w, portPriv->drw_h,
-			&ClipRegion, portPriv->DevPriv.ptr,
-			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;
-
-  REGION_UNINIT(pScreen, &WinRegion);
-  REGION_UNINIT(pScreen, &ClipRegion);
-
-  return ret;
-}
-
-
-static int
-xf86XVReputVideo(XvPortRecPrivatePtr portPriv)
-{
-  RegionRec WinRegion;
-  RegionRec ClipRegion;
-  BoxRec WinBox;
-  ScreenPtr pScreen;
-  int ret = Success;
-  Bool clippedAway = FALSE;
-
-  pScreen = portPriv->pDraw->pScreen;
-
-  xf86XVUpdateCompositeClip(portPriv);
-
-  /* translate the video region to the screen */
-  WinBox.x1 = portPriv->pDraw->x + portPriv->drw_x;
-  WinBox.y1 = portPriv->pDraw->y + portPriv->drw_y;
-  WinBox.x2 = WinBox.x1 + portPriv->drw_w;
-  WinBox.y2 = WinBox.y1 + portPriv->drw_h;
-
-  /* clip to the window composite clip */
-  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
-  REGION_NULL(pScreen, &ClipRegion);
-  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);
-
-  /* clip and translate to the viewport */
-  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
-     RegionRec VPReg;
-     BoxRec VPBox;
-
-     VPBox.x1 = portPriv->pScrn->frameX0;
-     VPBox.y1 = portPriv->pScrn->frameY0;
-     VPBox.x2 = portPriv->pScrn->frameX1 + 1;
-     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
-
-     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
-     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
-     REGION_UNINIT(pScreen, &VPReg);
-  }
-
-  /* that's all if it's totally obscured */
-  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
-	clippedAway = TRUE;
-	goto CLIP_VIDEO_BAILOUT;
-  }
-
-  /* bailout if we have to clip but the hardware doesn't support it */
-  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
-     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
-     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
-	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
-	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
-     {
-	    clippedAway = TRUE;
-	    goto CLIP_VIDEO_BAILOUT;
-     }
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
-     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
-  }
-
-  ret = (*portPriv->AdaptorRec->PutVideo)(portPriv->pScrn,
-			portPriv->vid_x, portPriv->vid_y,
-			WinBox.x1, WinBox.y1,
-			portPriv->vid_w, portPriv->vid_h,
-			portPriv->drw_w, portPriv->drw_h,
-			&ClipRegion, portPriv->DevPriv.ptr,
-			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;
-
-  REGION_UNINIT(pScreen, &WinRegion);
-  REGION_UNINIT(pScreen, &ClipRegion);
-
-  return ret;
-}
-
-static int
-xf86XVReputImage(XvPortRecPrivatePtr portPriv)
-{
-  RegionRec WinRegion;
-  RegionRec ClipRegion;
-  BoxRec WinBox;
-  ScreenPtr pScreen;
-  int ret = Success;
-  Bool clippedAway = FALSE;
-
-  pScreen = portPriv->pDraw->pScreen;
-
-  xf86XVUpdateCompositeClip(portPriv);
-
-  /* translate the video region to the screen */
-  WinBox.x1 = portPriv->pDraw->x + portPriv->drw_x;
-  WinBox.y1 = portPriv->pDraw->y + portPriv->drw_y;
-  WinBox.x2 = WinBox.x1 + portPriv->drw_w;
-  WinBox.y2 = WinBox.y1 + portPriv->drw_h;
-
-  /* clip to the window composite clip */
-  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
-  REGION_NULL(pScreen, &ClipRegion);
-  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);
-
-  /* clip and translate to the viewport */
-  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
-     RegionRec VPReg;
-     BoxRec VPBox;
-
-     VPBox.x1 = portPriv->pScrn->frameX0;
-     VPBox.y1 = portPriv->pScrn->frameY0;
-     VPBox.x2 = portPriv->pScrn->frameX1 + 1;
-     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
-
-     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
-     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
-     REGION_UNINIT(pScreen, &VPReg);
-  }
-
-  /* that's all if it's totally obscured */
-  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
-	clippedAway = TRUE;
-	goto CLIP_VIDEO_BAILOUT;
-  }
-
-  /* bailout if we have to clip but the hardware doesn't support it */
-  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
-     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
-     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
-	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
-	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
-     {
-	    clippedAway = TRUE;
-	    goto CLIP_VIDEO_BAILOUT;
-     }
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
-     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
-  }
-
-  ret = (*portPriv->AdaptorRec->ReputImage)(portPriv->pScrn,
-			WinBox.x1, WinBox.y1,
-			&ClipRegion, portPriv->DevPriv.ptr,
-			portPriv->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;
-
-  REGION_UNINIT(pScreen, &WinRegion);
-  REGION_UNINIT(pScreen, &ClipRegion);
-
-  return ret;
-}
-
-
-static int
-xf86XVReputAllVideo(WindowPtr pWin, pointer data)
-{
-    XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
-
-    while(WinPriv) {
-	if(WinPriv->PortRec->type == XvInputMask)
-	    xf86XVReputVideo(WinPriv->PortRec);
-	else
-	    xf86XVRegetVideo(WinPriv->PortRec);
-	WinPriv = WinPriv->next;
-    }
-
-    return WT_WALKCHILDREN;
-}
-
-static int
-xf86XVEnlistPortInWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)
-{
-   XF86XVWindowPtr winPriv, PrivRoot;
-
-   winPriv = PrivRoot = GET_XF86XV_WINDOW(pWin);
-
-  /* Enlist our port in the window private */
-   while(winPriv) {
-	if(winPriv->PortRec == portPriv) /* we're already listed */
-	    break;
-	winPriv = winPriv->next;
-   }
-
-   if(!winPriv) {
-	winPriv = xcalloc(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);
-	    xfree(winPriv);
-	    break;
-	}
-	prevPriv = winPriv;
-	winPriv = winPriv->next;
-     }
-     portPriv->pDraw = NULL;
-}
-
-/****  ScreenRec fields ****/
-
-static Bool
-xf86XVDestroyWindow(WindowPtr pWin)
-{
-  ScreenPtr pScreen = pWin->drawable.pScreen;
-  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-  XF86XVWindowPtr tmp, WinPriv = GET_XF86XV_WINDOW(pWin);
-  int ret;
-
-  while(WinPriv) {
-     XvPortRecPrivatePtr pPriv = WinPriv->PortRec;
-
-     if(pPriv->isOn > XV_OFF) {
-	(*pPriv->AdaptorRec->StopVideo)(
-			pPriv->pScrn, pPriv->DevPriv.ptr, TRUE);
-	pPriv->isOn = XV_OFF;
-     }
-
-     pPriv->pDraw = NULL;
-     tmp = WinPriv;
-     if(WinPriv->pGC) {
-       FreeGC(WinPriv->pGC, 0);
-     }
-     WinPriv = WinPriv->next;
-     xfree(tmp);
-  }
-
-  dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey, NULL);
-
-  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
-  ret = (*pScreen->DestroyWindow)(pWin);
-  pScreen->DestroyWindow = xf86XVDestroyWindow;
-
-  return ret;
-}
-
-
-static void
-xf86XVWindowExposures(WindowPtr pWin, RegionPtr reg1, RegionPtr reg2)
-{
-  ScreenPtr pScreen = pWin->drawable.pScreen;
-  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-  XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
-  XF86XVWindowPtr pPrev;
-  XvPortRecPrivatePtr pPriv;
-  Bool AreasExposed;
-
-  AreasExposed = (WinPriv && reg1 && REGION_NOTEMPTY(pScreen, reg1));
-
-  pScreen->WindowExposures = ScreenPriv->WindowExposures;
-  (*pScreen->WindowExposures)(pWin, reg1, reg2);
-  pScreen->WindowExposures = xf86XVWindowExposures;
-
-  /* filter out XClearWindow/Area */
-  if (!pWin->valdata) return;
-
-  pPrev = NULL;
-
-  while(WinPriv) {
-     pPriv = WinPriv->PortRec;
-
-     /* Reput anyone with a reput function */
-
-     switch(pPriv->type) {
-     case XvInputMask:
-	xf86XVReputVideo(pPriv);
-	break;
-     case XvOutputMask:
-	xf86XVRegetVideo(pPriv);
-	break;
-     default:  /* overlaid still/image*/
-	if (pPriv->AdaptorRec->ReputImage)
-	   xf86XVReputImage(pPriv);
-	else if(AreasExposed) {
-	    XF86XVWindowPtr tmp;
-
-	    if (pPriv->isOn == XV_ON) {
-		(*pPriv->AdaptorRec->StopVideo)(
-		    pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);
-		pPriv->isOn = XV_PENDING;
-	    }
-	    pPriv->pDraw = NULL;
-
-	    if(!pPrev)
-		dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey,
-			      WinPriv->next);
-	    else
-	       pPrev->next = WinPriv->next;
-	    tmp = WinPriv;
-	    WinPriv = WinPriv->next;
-	    xfree(tmp);
-	    continue;
-	}
-	break;
-     }
-     pPrev = WinPriv;
-     WinPriv = WinPriv->next;
-  }
-}
-
-
-static void
-xf86XVClipNotify(WindowPtr pWin, int dx, int dy)
-{
-  ScreenPtr pScreen = pWin->drawable.pScreen;
-  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-  XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
-  XF86XVWindowPtr tmp, pPrev = NULL;
-  XvPortRecPrivatePtr pPriv;
-  Bool visible = (pWin->visibility == VisibilityUnobscured) ||
-		 (pWin->visibility == VisibilityPartiallyObscured);
-
-  while(WinPriv) {
-     pPriv = WinPriv->PortRec;
-
-     if(!pPriv) goto next;
- 
-     if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
-	REGION_DESTROY(pScreen, pPriv->pCompositeClip);
-
-     pPriv->pCompositeClip = NULL;
-
-     if (pPriv->AdaptorRec->ClipNotify)
-        (*pPriv->AdaptorRec->ClipNotify)(pPriv->pScrn, pPriv->DevPriv.ptr,
-                                         pWin, dx, dy);
-
-     /* Stop everything except images, but stop them too if the
-	window isn't visible.  But we only remove the images. */
-
-     if(pPriv->type || !visible) {
-	if(pPriv->isOn == XV_ON) {
-	    (*pPriv->AdaptorRec->StopVideo)(
-			pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);
-	    pPriv->isOn = XV_PENDING;
-	}
-
-	if(!pPriv->type) {  /* overlaid still/image */
-	    pPriv->pDraw = NULL;
-
-	    if(!pPrev)
-		dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey,
-			      WinPriv->next);
-	    else
-	       pPrev->next = WinPriv->next;
-	    tmp = WinPriv;
-	    WinPriv = WinPriv->next;
-	    xfree(tmp);
-	    continue;
-	}
-     }
-
-next:
-     pPrev = WinPriv;
-     WinPriv = WinPriv->next;
-  }
-
-  if(ScreenPriv->ClipNotify) {
-      pScreen->ClipNotify = ScreenPriv->ClipNotify;
-      (*pScreen->ClipNotify)(pWin, dx, dy);
-      pScreen->ClipNotify = xf86XVClipNotify;
-  }
-}
-
-
-
-/**** Required XvScreenRec fields ****/
-
-static Bool
-xf86XVCloseScreen(int i, ScreenPtr pScreen)
-{
-  ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
-  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-  XvAdaptorPtr pa;
-  int c;
-
-  if(!ScreenPriv) return TRUE;
-
-  if(ScreenPriv->videoGC) {
-     FreeGC(ScreenPriv->videoGC, 0);
-     ScreenPriv->videoGC = NULL;
-  }
-
-  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
-  pScreen->WindowExposures = ScreenPriv->WindowExposures;
-  pScreen->ClipNotify = ScreenPriv->ClipNotify;
-
-  pScrn->EnterVT = ScreenPriv->EnterVT;
-  pScrn->LeaveVT = ScreenPriv->LeaveVT;
-  pScrn->AdjustFrame = ScreenPriv->AdjustFrame;
-
-  for(c = 0, pa = pxvs->pAdaptors; c < pxvs->nAdaptors; c++, pa++) {
-       xf86XVFreeAdaptor(pa);
-  }
-
-  xfree(pxvs->pAdaptors);
-  xfree(ScreenPriv);
-  return TRUE;
-}
-
-
-static int
-xf86XVQueryAdaptors(
-   ScreenPtr pScreen,
-   XvAdaptorPtr *p_pAdaptors,
-   int *p_nAdaptors
-){
-  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
-
-  *p_nAdaptors = pxvs->nAdaptors;
-  *p_pAdaptors = pxvs->pAdaptors;
-
-  return (Success);
-}
-
-
-/**** ScrnInfoRec fields ****/
-
-static Bool
-xf86XVEnterVT(int index, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-    Bool ret;
-
-    ret = (*ScreenPriv->EnterVT)(index, flags);
-
-    if(ret) WalkTree(pScreen, xf86XVReputAllVideo, 0);
-
-    return ret;
-}
-
-static void
-xf86XVLeaveVT(int index, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
-    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-    XvAdaptorPtr pAdaptor;
-    XvPortPtr pPort;
-    XvPortRecPrivatePtr pPriv;
-    int i, j;
-
-    for(i = 0; i < pxvs->nAdaptors; i++) {
-	pAdaptor = &pxvs->pAdaptors[i];
-	for(j = 0; j < pAdaptor->nPorts; j++) {
-	    pPort = &pAdaptor->pPorts[j];
-	    pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
-	    if(pPriv->isOn > XV_OFF) {
-
-		(*pPriv->AdaptorRec->StopVideo)(
-			pPriv->pScrn, pPriv->DevPriv.ptr, TRUE);
-		pPriv->isOn = XV_OFF;
-
-		if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
-		    REGION_DESTROY(pScreen, pPriv->pCompositeClip);
-
-		pPriv->pCompositeClip = NULL;
-
-		if(!pPriv->type && pPriv->pDraw) { /* still */
-		    xf86XVRemovePortFromWindow((WindowPtr)pPriv->pDraw, pPriv);
-		}
-	    }
-	}
-    }
-
-    (*ScreenPriv->LeaveVT)(index, flags);
-}
-
-static void
-xf86XVAdjustFrame(int index, int x, int y, int flags)
-{
-  ScrnInfoPtr pScrn = xf86Screens[index];
-  ScreenPtr pScreen = pScrn->pScreen;
-  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
-  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);
-  WindowPtr pWin;
-  XvAdaptorPtr pa;
-  int c, i;
-
-  if(ScreenPriv->AdjustFrame) {
-	pScrn->AdjustFrame = ScreenPriv->AdjustFrame;
-	(*pScrn->AdjustFrame)(index, x, y, flags);
-	pScrn->AdjustFrame = xf86XVAdjustFrame;
-  }
-
-  for(c = pxvs->nAdaptors, pa = pxvs->pAdaptors; c > 0; c--, pa++) {
-      XvPortPtr pPort = pa->pPorts;
-      XvPortRecPrivatePtr pPriv;
-
-      for(i = pa->nPorts; i > 0; i--, pPort++) {
-	pPriv = (XvPortRecPrivatePtr)pPort->devPriv.ptr;
-
-	if(!pPriv->type && (pPriv->isOn != XV_OFF)) { /* overlaid still/image */
-
-	  if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
-	     REGION_DESTROY(pScreen, pPriv->pCompositeClip);
-
-	  pPriv->pCompositeClip = NULL;
-
-	  pWin = (WindowPtr)pPriv->pDraw;
-
-	  if ((pPriv->AdaptorRec->ReputImage) &&
-	     ((pWin->visibility == VisibilityUnobscured) ||
-	      (pWin->visibility == VisibilityPartiallyObscured)))
-	  {
-	      xf86XVReputImage(pPriv);
-	  } else if (pPriv->isOn == XV_ON) {
-	     (*pPriv->AdaptorRec->StopVideo)(
-				 pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);
-	     xf86XVRemovePortFromWindow(pWin, pPriv);
-	     pPriv->isOn = XV_PENDING;
-	     continue;
-	  }
-	}
-     }
-  }
-}
-
-
-/**** XvAdaptorRec fields ****/
-
-static int
-xf86XVAllocatePort(
-   unsigned long port,
-   XvPortPtr pPort,
-   XvPortPtr *ppPort
-){
-  *ppPort = pPort;
-  return Success;
-}
-
-
-
-static int
-xf86XVFreePort(XvPortPtr pPort)
-{
-  return Success;
-}
-
-
-static int
-xf86XVPutVideo(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y,
-   CARD16 vid_w, CARD16 vid_h,
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-  int result;
-
-  /* No dumping video to pixmaps... For now anyhow */
-  if(pDraw->type != DRAWABLE_WINDOW) {
-      pPort->pDraw = (DrawablePtr)NULL;
-      return BadAlloc;
-  }
-
-  /* If we are changing windows, unregister our port in the old window */
-  if(portPriv->pDraw && (portPriv->pDraw != pDraw))
-     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
-
-  /* Register our port with the new window */
-  result =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
-  if(result != Success) return result;
-
-  portPriv->type = XvInputMask;
-
-  /* save a copy of these parameters */
-  portPriv->vid_x = vid_x;  portPriv->vid_y = vid_y;
-  portPriv->vid_w = vid_w;  portPriv->vid_h = vid_h;
-  portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
-  portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
-
-  /* make sure we have the most recent copy of the clientClip */
-  xf86XVCopyClip(portPriv, pGC);
-
-  /* To indicate to the DI layer that we were successful */
-  pPort->pDraw = pDraw;
-
-  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
-
-  return(xf86XVReputVideo(portPriv));
-}
-
-static int
-xf86XVPutStill(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y,
-   CARD16 vid_w, CARD16 vid_h,
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-  ScreenPtr pScreen;
-  RegionRec WinRegion;
-  RegionRec ClipRegion;
-  BoxRec WinBox;
-  int ret = Success;
-  Bool clippedAway = FALSE;
-
-  if (pDraw->type != DRAWABLE_WINDOW)
-      return BadAlloc;
-
-  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
-
-  pScreen = pDraw->pScreen;
-
-  WinBox.x1 = pDraw->x + drw_x;
-  WinBox.y1 = pDraw->y + drw_y;
-  WinBox.x2 = WinBox.x1 + drw_w;
-  WinBox.y2 = WinBox.y1 + drw_h;
-
-  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
-  REGION_NULL(pScreen, &ClipRegion);
-  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);
-
-  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
-     RegionRec VPReg;
-     BoxRec VPBox;
-
-     VPBox.x1 = portPriv->pScrn->frameX0;
-     VPBox.y1 = portPriv->pScrn->frameY0;
-     VPBox.x2 = portPriv->pScrn->frameX1 + 1;
-     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
-
-     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
-     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
-     REGION_UNINIT(pScreen, &VPReg);
-  }
-
-  if(portPriv->pDraw) {
-     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
-  }
-
-  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
-     clippedAway = TRUE;
-     goto PUT_STILL_BAILOUT;
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
-     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
-     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
-	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
-	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
-     {
-	  clippedAway = TRUE;
-	  goto PUT_STILL_BAILOUT;
-     }
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
-     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
-  }
-
-  ret = (*portPriv->AdaptorRec->PutStill)(portPriv->pScrn,
-		vid_x, vid_y, WinBox.x1, WinBox.y1,
-		vid_w, vid_h, drw_w, drw_h,
-		&ClipRegion, portPriv->DevPriv.ptr,
-		pDraw);
-
-  if((ret == Success) &&
-	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_STILLS)) {
-
-     xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
-     portPriv->isOn = XV_ON;
-     portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
-     portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
-     portPriv->type = 0;  /* no mask means it's transient and should
-			     not be reput once it's removed */
-     pPort->pDraw = pDraw;  /* make sure we can get stop requests */
-  }
-
-PUT_STILL_BAILOUT:
-
-  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
-	(*portPriv->AdaptorRec->StopVideo)(
-		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
-	portPriv->isOn = XV_PENDING;
-  }
-
-  REGION_UNINIT(pScreen, &WinRegion);
-  REGION_UNINIT(pScreen, &ClipRegion);
-
-  return ret;
-}
-
-static int
-xf86XVGetVideo(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y,
-   CARD16 vid_w, CARD16 vid_h,
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-  int result;
-
-  /* No pixmaps... For now anyhow */
-  if(pDraw->type != DRAWABLE_WINDOW) {
-      pPort->pDraw = (DrawablePtr)NULL;
-      return BadAlloc;
-  }
-
-  /* If we are changing windows, unregister our port in the old window */
-  if(portPriv->pDraw && (portPriv->pDraw != pDraw))
-     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
-
-  /* Register our port with the new window */
-  result =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);
-  if(result != Success) return result;
-
-  portPriv->type = XvOutputMask;
-
-  /* save a copy of these parameters */
-  portPriv->vid_x = vid_x;  portPriv->vid_y = vid_y;
-  portPriv->vid_w = vid_w;  portPriv->vid_h = vid_h;
-  portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
-  portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
-
-  /* make sure we have the most recent copy of the clientClip */
-  xf86XVCopyClip(portPriv, pGC);
-
-  /* To indicate to the DI layer that we were successful */
-  pPort->pDraw = pDraw;
-
-  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
-
-  return(xf86XVRegetVideo(portPriv));
-}
-
-static int
-xf86XVGetStill(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 vid_x, INT16 vid_y,
-   CARD16 vid_w, CARD16 vid_h,
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-  ScreenPtr pScreen;
-  RegionRec WinRegion;
-  RegionRec ClipRegion;
-  BoxRec WinBox;
-  int ret = Success;
-  Bool clippedAway = FALSE;
-
-  if (pDraw->type != DRAWABLE_WINDOW)
-      return BadAlloc;
-
-  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
-
-  pScreen = pDraw->pScreen;
-
-  WinBox.x1 = pDraw->x + drw_x;
-  WinBox.y1 = pDraw->y + drw_y;
-  WinBox.x2 = WinBox.x1 + drw_w;
-  WinBox.y2 = WinBox.y1 + drw_h;
-
-  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
-  REGION_NULL(pScreen, &ClipRegion);
-  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);
-
-  if(portPriv->pDraw) {
-     xf86XVRemovePortFromWindow((WindowPtr)(portPriv->pDraw), portPriv);
-  }
-
-  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
-     clippedAway = TRUE;
-     goto GET_STILL_BAILOUT;
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
-     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
-  }
-
-  ret = (*portPriv->AdaptorRec->GetStill)(portPriv->pScrn,
-		vid_x, vid_y, WinBox.x1, WinBox.y1,
-		vid_w, vid_h, drw_w, drw_h,
-		&ClipRegion, portPriv->DevPriv.ptr,
-		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;
-  }
-
-  REGION_UNINIT(pScreen, &WinRegion);
-  REGION_UNINIT(pScreen, &ClipRegion);
-
-  return ret;
-}
-
-
-
-static int
-xf86XVStopVideo(
-   ClientPtr client,
-   XvPortPtr pPort,
-   DrawablePtr pDraw
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-
-  if(pDraw->type != DRAWABLE_WINDOW)
-      return BadAlloc;
-
-  xf86XVRemovePortFromWindow((WindowPtr)pDraw, portPriv);
-
-  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
-
-  /* Must free resources. */
-
-  if(portPriv->isOn > XV_OFF) {
-	(*portPriv->AdaptorRec->StopVideo)(
-		portPriv->pScrn, portPriv->DevPriv.ptr, TRUE);
-	portPriv->isOn = XV_OFF;
-  }
-
-  return Success;
-}
-
-static int
-xf86XVSetPortAttribute(
-   ClientPtr client,
-   XvPortPtr pPort,
-   Atom attribute,
-   INT32 value
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-
-  return((*portPriv->AdaptorRec->SetPortAttribute)(portPriv->pScrn,
-		attribute, value, portPriv->DevPriv.ptr));
-}
-
-
-static int
-xf86XVGetPortAttribute(
-   ClientPtr client,
-   XvPortPtr pPort,
-   Atom attribute,
-   INT32 *p_value
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-
-  return((*portPriv->AdaptorRec->GetPortAttribute)(portPriv->pScrn,
-		attribute, p_value, portPriv->DevPriv.ptr));
-}
-
-
-
-static int
-xf86XVQueryBestSize(
-   ClientPtr client,
-   XvPortPtr pPort,
-   CARD8 motion,
-   CARD16 vid_w, CARD16 vid_h,
-   CARD16 drw_w, CARD16 drw_h,
-   unsigned int *p_w, unsigned int *p_h
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-
-  (*portPriv->AdaptorRec->QueryBestSize)(portPriv->pScrn,
-		(Bool)motion, vid_w, vid_h, drw_w, drw_h,
-		p_w, p_h, portPriv->DevPriv.ptr);
-
-  return Success;
-}
-
-
-static int
-xf86XVPutImage(
-   ClientPtr client,
-   DrawablePtr pDraw,
-   XvPortPtr pPort,
-   GCPtr pGC,
-   INT16 src_x, INT16 src_y,
-   CARD16 src_w, CARD16 src_h,
-   INT16 drw_x, INT16 drw_y,
-   CARD16 drw_w, CARD16 drw_h,
-   XvImagePtr format,
-   unsigned char* data,
-   Bool sync,
-   CARD16 width, CARD16 height
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-  ScreenPtr pScreen;
-  RegionRec WinRegion;
-  RegionRec ClipRegion;
-  BoxRec WinBox;
-  int ret = Success;
-  Bool clippedAway = FALSE;
-
-  if (pDraw->type != DRAWABLE_WINDOW)
-      return BadAlloc;
-
-  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */
-
-  pScreen = pDraw->pScreen;
-
-  WinBox.x1 = pDraw->x + drw_x;
-  WinBox.y1 = pDraw->y + drw_y;
-  WinBox.x2 = WinBox.x1 + drw_w;
-  WinBox.y2 = WinBox.y1 + drw_h;
-
-  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);
-  REGION_NULL(pScreen, &ClipRegion);
-  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);
-
-  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {
-     RegionRec VPReg;
-     BoxRec VPBox;
-
-     VPBox.x1 = portPriv->pScrn->frameX0;
-     VPBox.y1 = portPriv->pScrn->frameY0;
-     VPBox.x2 = portPriv->pScrn->frameX1 + 1;
-     VPBox.y2 = portPriv->pScrn->frameY1 + 1;
-
-     REGION_INIT(pScreen, &VPReg, &VPBox, 1);
-     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);
-     REGION_UNINIT(pScreen, &VPReg);
-  }
-
-  /* If 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(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {
-     clippedAway = TRUE;
-     goto PUT_IMAGE_BAILOUT;
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_NO_CLIPPING) {
-     BoxPtr clipBox = REGION_RECTS(&ClipRegion);
-     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||
-	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||
-	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))
-     {
-	  clippedAway = TRUE;
-	  goto PUT_IMAGE_BAILOUT;
-     }
-  }
-
-  if(portPriv->AdaptorRec->flags & VIDEO_INVERT_CLIPLIST) {
-     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);
-  }
-
-  ret = (*portPriv->AdaptorRec->PutImage)(portPriv->pScrn,
-		src_x, src_y, WinBox.x1, WinBox.y1,
-		src_w, src_h, drw_w, drw_h, format->id, data, width, height,
-		sync, &ClipRegion, portPriv->DevPriv.ptr,
-		pDraw);
-
-  if((ret == Success) &&
-	(portPriv->AdaptorRec->flags & VIDEO_OVERLAID_IMAGES)) {
-
-     portPriv->isOn = XV_ON;
-     portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;
-     portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;
-     portPriv->type = 0;  /* no mask means it's transient and should
-			     not be reput once it's removed */
-     pPort->pDraw = pDraw;  /* make sure we can get stop requests */
-  }
-
-PUT_IMAGE_BAILOUT:
-
-  if((clippedAway || (ret != Success)) && (portPriv->isOn == XV_ON)) {
-	(*portPriv->AdaptorRec->StopVideo)(
-		portPriv->pScrn, portPriv->DevPriv.ptr, FALSE);
-	portPriv->isOn = XV_PENDING;
-  }
-
-  REGION_UNINIT(pScreen, &WinRegion);
-  REGION_UNINIT(pScreen, &ClipRegion);
-
-  return ret;
-}
-
-
-static  int
-xf86XVQueryImageAttributes(
-   ClientPtr client,
-   XvPortPtr pPort,
-   XvImagePtr format,
-   CARD16 *width,
-   CARD16 *height,
-   int *pitches,
-   int *offsets
-){
-  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
-
-  return (*portPriv->AdaptorRec->QueryImageAttributes)(portPriv->pScrn,
-			format->id, width, height, pitches, offsets);
-}
-
-
-void
-xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr clipboxes)
-{
-   ScreenPtr pScreen = pDraw->pScreen;
-   WindowPtr pWin = (WindowPtr)pDraw;
-   XF86XVWindowPtr pPriv = GET_XF86XV_WINDOW(pWin);
-   GCPtr pGC = NULL;
-   XID pval[2];
-   BoxPtr pbox = REGION_RECTS(clipboxes);
-   int i, nbox = REGION_NUM_RECTS(clipboxes);
-   xRectangle *rects;
-
-   if(!xf86Screens[pScreen->myNum]->vtSema) return;
-
-   if(pPriv)
-      pGC = pPriv->pGC;
-
-   if(!pGC) {
-       int status;
-       pval[0] = key;
-       pval[1] = IncludeInferiors;
-       pGC = CreateGC(pDraw, GCForeground | GCSubwindowMode, pval, &status,
-		      (XID)0, serverClient);
-       if(!pGC) return;
-       ValidateGC(pDraw, pGC);
-       if (pPriv) pPriv->pGC = pGC;
-   } else if (key != pGC->fgPixel){
-       pval[0] = key;
-       ChangeGC(pGC, GCForeground, pval);
-       ValidateGC(pDraw, pGC);
-   }
-
-   REGION_TRANSLATE(pDraw->pScreen, clipboxes, -pDraw->x, -pDraw->y);
-
-   rects = xalloc(nbox * sizeof(xRectangle));
-
-   for(i = 0; i < nbox; i++, pbox++) {
-      rects[i].x = pbox->x1;
-      rects[i].y = pbox->y1;
-      rects[i].width = pbox->x2 - pbox->x1;
-      rects[i].height = pbox->y2 - pbox->y1;
-   }
-
-   (*pGC->ops->PolyFillRect)(pDraw, pGC, nbox, rects);
-
-   if (!pPriv) FreeGC(pGC, 0);
-
-   xfree(rects);
-}
-
-void
-xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr clipboxes)
-{
-   DrawablePtr root = &WindowTable[pScreen->myNum]->drawable;
-   XID pval[2];
-   BoxPtr pbox = REGION_RECTS(clipboxes);
-   int i, nbox = REGION_NUM_RECTS(clipboxes);
-   xRectangle *rects;
-   GCPtr gc;
-
-   if(!xf86Screens[pScreen->myNum]->vtSema) return;
-
-   gc = GetScratchGC(root->depth, pScreen);
-   pval[0] = key;
-   pval[1] = IncludeInferiors;
-   (void) ChangeGC(gc, GCForeground|GCSubwindowMode, pval);
-   ValidateGC(root, gc);
-
-   rects = xalloc (nbox * sizeof(xRectangle));
-
-   for(i = 0; i < nbox; i++, pbox++) 
-   {
-      rects[i].x = pbox->x1;
-      rects[i].y = pbox->y1;
-      rects[i].width = pbox->x2 - pbox->x1;
-      rects[i].height = pbox->y2 - pbox->y1;
-   }
-   
-   (*gc->ops->PolyFillRect)(root, gc, nbox, rects);
-   
-   xfree (rects);
-   FreeScratchGC (gc);
-}
-
-/* xf86XVClipVideoHelper -
-
-   Takes the dst box in standard X BoxRec form (top and left
-   edges inclusive, bottom and right exclusive).  The new dst
-   box is returned.  The source boundaries are given (x1, y1
-   inclusive, x2, y2 exclusive) and returned are the new source
-   boundaries in 16.16 fixed point.
-*/
-
-#define DummyScreen screenInfo.screens[0]
-
-Bool
-xf86XVClipVideoHelper(
-    BoxPtr dst,
-    INT32 *xa,
-    INT32 *xb,
-    INT32 *ya,
-    INT32 *yb,
-    RegionPtr reg,
-    INT32 width,
-    INT32 height
-){
-    double xsw, xdw, ysw, ydw;
-    INT32 delta;
-    BoxPtr extents = REGION_EXTENTS(DummyScreen, reg);
-    int diff;
-
-    xsw = (*xb - *xa) << 16;
-    xdw = dst->x2 - dst->x1;
-    ysw = (*yb - *ya) << 16;
-    ydw = dst->y2 - dst->y1;
-
-    *xa <<= 16; *xb <<= 16;
-    *ya <<= 16; *yb <<= 16;
-
-    diff = extents->x1 - dst->x1;
-    if (diff > 0) {
-	dst->x1 = extents->x1;
-	*xa += (diff * xsw) / xdw;
-    }
-    diff = dst->x2 - extents->x2;
-    if (diff > 0) {
-	dst->x2 = extents->x2;
-	*xb -= (diff * xsw) / xdw;
-    }
-    diff = extents->y1 - dst->y1;
-    if (diff > 0) {
-	dst->y1 = extents->y1;
-	*ya += (diff * ysw) / ydw;
-    }
-    diff = dst->y2 - extents->y2;
-    if (diff > 0) {
-	dst->y2 = extents->y2;
-	*yb -= (diff * ysw) / ydw;
-    }
-
-    if (*xa < 0) {
-	diff = (((-*xa) * xdw) + xsw - 1) / xsw;
-	dst->x1 += diff;
-	*xa += (diff * xsw) / xdw;
-    }
-    delta = *xb - (width << 16);
-    if (delta > 0) {
-	diff = ((delta * xdw) + xsw - 1) / xsw;
-	dst->x2 -= diff;
-	*xb -= (diff * xsw) / xdw;
-    }
-    if (*xa >= *xb) return FALSE;
-
-    if (*ya < 0) {
-	diff = (((-*ya) * ydw) + ysw - 1) / ysw;
-	dst->y1 += diff;
-	*ya += (diff * ysw) / ydw;
-    }
-    delta = *yb - (height << 16);
-    if (delta > 0) {
-	diff = ((delta * ydw) + ysw - 1) / ysw;
-	dst->y2 -= diff;
-	*yb -= (diff * ysw) / ydw;
-    }
-    if (*ya >= *yb) return FALSE;
-
-    if ((dst->x1 > extents->x1) || (dst->x2 < extents->x2) ||
-	(dst->y1 > extents->y1) || (dst->y2 < extents->y2))
-    {
-	RegionRec clipReg;
-	REGION_INIT(DummyScreen, &clipReg, dst, 1);
-	REGION_INTERSECT(DummyScreen, reg, reg, &clipReg);
-	REGION_UNINIT(DummyScreen, &clipReg);
-    }
-    return TRUE;
-}
-
-void
-xf86XVCopyYUV12ToPacked(
-    const void *srcy,
-    const void *srcv,
-    const void *srcu,
-    void *dst,
-    int srcPitchy,
-    int srcPitchuv,
-    int dstPitch,
-    int h,
-    int w
-){
-    CARD32 *Dst;
-    const CARD8 *Y, *U, *V;
-    int i, j;
-
-    w >>= 1;
-
-    for (j = 0;  j < h;  j++) {
-	Dst = dst;
-	Y = srcy;  V = srcv;  U = srcu;
-	i = w;
-	while (i >= 4) {
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
-	    Dst[0] = Y[0] | (Y[1] << 16) | (U[0] << 8) | (V[0] << 24);
-	    Dst[1] = Y[2] | (Y[3] << 16) | (U[1] << 8) | (V[1] << 24);
-	    Dst[2] = Y[4] | (Y[5] << 16) | (U[2] << 8) | (V[2] << 24);
-	    Dst[3] = Y[6] | (Y[7] << 16) | (U[3] << 8) | (V[3] << 24);
-#else
-	    /* This assumes a little-endian framebuffer */
-	    Dst[0] = (Y[0] << 24) | (Y[1] << 8) | (U[0] << 16) | V[0];
-	    Dst[1] = (Y[2] << 24) | (Y[3] << 8) | (U[1] << 16) | V[1];
-	    Dst[2] = (Y[4] << 24) | (Y[5] << 8) | (U[2] << 16) | V[2];
-	    Dst[3] = (Y[6] << 24) | (Y[7] << 8) | (U[3] << 16) | V[3];
-#endif
-	    Dst += 4;  Y += 8;  V += 4;  U += 4;
-	    i -= 4;
-	}
-
-	while (i--) {
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
-	    Dst[0] = Y[0] | (Y[1] << 16) | (U[0] << 8) | (V[0] << 24);
-#else
-	    /* This assumes a little-endian framebuffer */
-	    Dst[0] = (Y[0] << 24) | (Y[1] << 8) | (U[0] << 16) | V[0];
-#endif
-	    Dst++;  Y += 2;  V++;  U++;
-	}
-
-	dst = (CARD8 *)dst + dstPitch;
-	srcy = (const CARD8 *)srcy + srcPitchy;
-	if (j & 1) {
-	    srcu = (const CARD8 *)srcu + srcPitchuv;
-	    srcv = (const CARD8 *)srcv + srcPitchuv;
-	}
-    }
-}
-
-void
-xf86XVCopyPacked(
-    const void *src,
-    void *dst,
-    int srcPitch,
-    int dstPitch,
-    int h,
-    int w
-){
-    const CARD32 *Src;
-    CARD32 *Dst;
-    int i;
-
-    w >>= 1;
-    while (--h >= 0) {
-	do {
-	    Dst = dst;  Src = src;
-	    i = w;
-	    while (i >= 4) {
-		Dst[0] = Src[0];
-		Dst[1] = Src[1];
-		Dst[2] = Src[2];
-		Dst[3] = Src[3];
-		Dst += 4;  Src += 4;  i -= 4;
-	    }
-	    if (!i) break;
-	    Dst[0] = Src[0];
-	    if (i == 1) break;
-	    Dst[1] = Src[1];
-	    if (i == 2) break;
-	    Dst[2] = Src[2];
-	} while (0);
-
-	src = (const CARD8 *)src + srcPitch;
-	dst = (CARD8 *)dst + dstPitch;
-    }
-}
+/*

+ * 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 xf86XVClipNotify(WindowPtr pWin, int dx, int dy);

+

+/* ScrnInfoRec functions */

+

+static Bool xf86XVEnterVT(int, int);

+static void xf86XVLeaveVT(int, int);

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

+

+/* misc */

+

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

+

+

+static int XF86XVWindowKeyIndex;

+static DevPrivateKey XF86XVWindowKey = &XF86XVWindowKeyIndex;

+static int XF86XvScreenKeyIndex;

+DevPrivateKey XF86XvScreenKey = &XF86XvScreenKeyIndex;

+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 int OffscreenPrivateKeyIndex;

+static DevPrivateKey OffscreenPrivateKey = &OffscreenPrivateKeyIndex;

+#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 dixRequestPrivate to ensure we

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

+    if(!dixRequestPrivate(OffscreenPrivateKey, 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;

+

+  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->videoGC = NULL;  /* for the helper */

+

+  ScreenPriv->DestroyWindow = pScreen->DestroyWindow;

+  ScreenPriv->WindowExposures = pScreen->WindowExposures;

+  ScreenPriv->ClipNotify = pScreen->ClipNotify;

+  ScreenPriv->EnterVT = pScrn->EnterVT;

+  ScreenPriv->LeaveVT = pScrn->LeaveVT;

+  ScreenPriv->AdjustFrame = pScrn->AdjustFrame;

+

+  pScreen->DestroyWindow = xf86XVDestroyWindow;

+  pScreen->WindowExposures = xf86XVWindowExposures;

+  pScreen->ClipNotify = xf86XVClipNotify;

+  pScrn->EnterVT = xf86XVEnterVT;

+  pScrn->LeaveVT = xf86XVLeaveVT;

+  if(pScrn->AdjustFrame)

+     pScrn->AdjustFrame = xf86XVAdjustFrame;

+

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

+	return FALSE;

+

+  return TRUE;

+}

+

+static void

+xf86XVFreeAdaptor(XvAdaptorPtr pAdaptor)

+{

+   int i;

+

+   free(pAdaptor->name);

+

+   if(pAdaptor->pEncodings) {

+      XvEncodingPtr pEncode = pAdaptor->pEncodings;

+

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

+	  free(pEncode->name);

+      free(pAdaptor->pEncodings);

+   }

+

+   free(pAdaptor->pFormats);

+

+   if(pAdaptor->pPorts) {

+      XvPortPtr pPort = pAdaptor->pPorts;

+      XvPortRecPrivatePtr pPriv;

+

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

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

+	  if(pPriv) {

+	     if(pPriv->clientClip)

+		REGION_DESTROY(pAdaptor->pScreen, pPriv->clientClip);

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

+		REGION_DESTROY(pAdaptor->pScreen, pPriv->pCompositeClip);

+	     free(pPriv);

+	  }

+      }

+      free(pAdaptor->pPorts);

+   }

+

+   if(pAdaptor->nAttributes) {

+      XvAttributePtr pAttribute = pAdaptor->pAttributes;

+

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

+	  free(pAttribute->name);

+      free(pAdaptor->pAttributes);

+   }

+

+   free(pAdaptor->pImages);

+   free(pAdaptor->devPriv.ptr);

+}

+

+static Bool

+xf86XVInitAdaptors(

+   ScreenPtr pScreen,

+   XF86VideoAdaptorPtr *infoPtr,

+   int number

+) {

+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);

+  ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+  XF86VideoAdaptorPtr adaptorPtr;

+  XvAdaptorPtr pAdaptor, pa;

+  XvAdaptorRecPrivatePtr adaptorPriv;

+  int na, numAdaptor;

+  XvPortRecPrivatePtr portPriv;

+  XvPortPtr pPort, pp;

+  int numPort;

+  XF86AttributePtr attributePtr;

+  XvAttributePtr pAttribute, pat;

+  XF86VideoFormatPtr formatPtr;

+  XvFormatPtr pFormat, pf;

+  int numFormat, totFormat;

+  XF86VideoEncodingPtr encodingPtr;

+  XvEncodingPtr pEncode, pe;

+  XF86ImagePtr imagePtr;

+  XvImagePtr pImage, pi;

+  int numVisuals;

+  VisualPtr pVisual;

+  int i;

+

+  pxvs->nAdaptors = 0;

+  pxvs->pAdaptors = NULL;

+

+  if(!(pAdaptor = 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;

+      if((pa->name = malloc(strlen(adaptorPtr->name) + 1)))

+	  strcpy(pa->name, 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;

+	    if((pe->name = malloc(strlen(encodingPtr->name) + 1)))

+		strcpy(pe->name, encodingPtr->name);

+	    pe->width = encodingPtr->width;

+	    pe->height = encodingPtr->height;

+	    pe->rate.numerator = encodingPtr->rate.numerator;

+	    pe->rate.denominator = encodingPtr->rate.denominator;

+	}

+	pa->nEncodings = adaptorPtr->nEncodings;

+	pa->pEncodings = pEncode;

+      }

+

+      if(adaptorPtr->nImages &&

+	 (pImage = 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;

+	    if((pat->name = malloc(strlen(attributePtr->name) + 1)))

+		strcpy(pat->name, 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;

+

+      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;

+   ScreenPtr	pScreen;

+   Bool		freeCompClip = FALSE;

+

+   if(portPriv->pCompositeClip)

+	return;

+

+   pWin = (WindowPtr)portPriv->pDraw;

+   pScreen = pWin->drawable.pScreen;

+

+   /* get window clip list */

+   if(portPriv->subWindowMode == IncludeInferiors) {

+	pregWin = NotClippedByChildren(pWin);

+	freeCompClip = TRUE;

+   } else

+	pregWin = &pWin->clipList;

+

+   if(!portPriv->clientClip) {

+	portPriv->pCompositeClip = pregWin;

+	portPriv->FreeCompositeClip = freeCompClip;

+	return;

+   }

+

+   pCompositeClip = REGION_CREATE(pScreen, NullBox, 1);

+   REGION_COPY(pScreen, pCompositeClip, portPriv->clientClip);

+   REGION_TRANSLATE(pScreen, pCompositeClip,

+			portPriv->pDraw->x + portPriv->clipOrg.x,

+			portPriv->pDraw->y + portPriv->clipOrg.y);

+   REGION_INTERSECT(pScreen, pCompositeClip, pregWin, pCompositeClip);

+

+   portPriv->pCompositeClip = pCompositeClip;

+   portPriv->FreeCompositeClip = TRUE;

+

+   if(freeCompClip) {

+	REGION_DESTROY(pScreen, pregWin);

+   }

+}

+

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

+   we have a fresh GC */

+

+static void

+xf86XVCopyClip(

+   XvPortRecPrivatePtr portPriv,

+   GCPtr pGC

+){

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

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

+	if(!portPriv->clientClip)

+	    portPriv->clientClip = REGION_CREATE(pScreen, NullBox, 1);

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

+	REGION_COPY(pScreen, portPriv->clientClip, pGC->clientClip);

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

+	REGION_DESTROY(pScreen, portPriv->clientClip);

+	portPriv->clientClip = NULL;

+    }

+

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

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

+	REGION_DESTROY(pScreen, portPriv->pCompositeClip);

+    }

+

+    portPriv->clipOrg = pGC->clipOrg;

+    portPriv->pCompositeClip = pGC->pCompositeClip;

+    portPriv->FreeCompositeClip = FALSE;

+    portPriv->subWindowMode = pGC->subWindowMode;

+}

+

+static int

+xf86XVRegetVideo(XvPortRecPrivatePtr portPriv)

+{

+  RegionRec WinRegion;

+  RegionRec ClipRegion;

+  BoxRec WinBox;

+  ScreenPtr pScreen;

+  int ret = Success;

+  Bool clippedAway = FALSE;

+

+  pScreen = portPriv->pDraw->pScreen;

+  xf86XVUpdateCompositeClip(portPriv);

+

+  /* translate the video region to the screen */

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

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

+  WinBox.x2 = WinBox.x1 + portPriv->drw_w;

+  WinBox.y2 = WinBox.y1 + portPriv->drw_h;

+

+  /* clip to the window composite clip */

+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);

+  REGION_NULL(pScreen, &ClipRegion);

+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);

+

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

+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {

+	clippedAway = TRUE;

+	goto CLIP_VIDEO_BAILOUT;

+  }

+

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

+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);

+  }

+

+  ret = (*portPriv->AdaptorRec->GetVideo)(portPriv->pScrn,

+			portPriv->vid_x, portPriv->vid_y,

+			WinBox.x1, WinBox.y1,

+			portPriv->vid_w, portPriv->vid_h,

+			portPriv->drw_w, portPriv->drw_h,

+			&ClipRegion, portPriv->DevPriv.ptr,

+			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;

+

+  REGION_UNINIT(pScreen, &WinRegion);

+  REGION_UNINIT(pScreen, &ClipRegion);

+

+  return ret;

+}

+

+

+static int

+xf86XVReputVideo(XvPortRecPrivatePtr portPriv)

+{

+  RegionRec WinRegion;

+  RegionRec ClipRegion;

+  BoxRec WinBox;

+  ScreenPtr pScreen;

+  int ret = Success;

+  Bool clippedAway = FALSE;

+

+  pScreen = portPriv->pDraw->pScreen;

+

+  xf86XVUpdateCompositeClip(portPriv);

+

+  /* translate the video region to the screen */

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

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

+  WinBox.x2 = WinBox.x1 + portPriv->drw_w;

+  WinBox.y2 = WinBox.y1 + portPriv->drw_h;

+

+  /* clip to the window composite clip */

+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);

+  REGION_NULL(pScreen, &ClipRegion);

+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);

+

+  /* clip and translate to the viewport */

+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {

+     RegionRec VPReg;

+     BoxRec VPBox;

+

+     VPBox.x1 = portPriv->pScrn->frameX0;

+     VPBox.y1 = portPriv->pScrn->frameY0;

+     VPBox.x2 = portPriv->pScrn->frameX1 + 1;

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

+

+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);

+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);

+     REGION_UNINIT(pScreen, &VPReg);

+  }

+

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

+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {

+	clippedAway = TRUE;

+	goto CLIP_VIDEO_BAILOUT;

+  }

+

+  /* bailout if we have to clip but the hardware doesn't support it */

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

+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);

+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||

+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||

+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))

+     {

+	    clippedAway = TRUE;

+	    goto CLIP_VIDEO_BAILOUT;

+     }

+  }

+

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

+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);

+  }

+

+  ret = (*portPriv->AdaptorRec->PutVideo)(portPriv->pScrn,

+			portPriv->vid_x, portPriv->vid_y,

+			WinBox.x1, WinBox.y1,

+			portPriv->vid_w, portPriv->vid_h,

+			portPriv->drw_w, portPriv->drw_h,

+			&ClipRegion, portPriv->DevPriv.ptr,

+			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;

+

+  REGION_UNINIT(pScreen, &WinRegion);

+  REGION_UNINIT(pScreen, &ClipRegion);

+

+  return ret;

+}

+

+static int

+xf86XVReputImage(XvPortRecPrivatePtr portPriv)

+{

+  RegionRec WinRegion;

+  RegionRec ClipRegion;

+  BoxRec WinBox;

+  ScreenPtr pScreen;

+  int ret = Success;

+  Bool clippedAway = FALSE;

+

+  pScreen = portPriv->pDraw->pScreen;

+

+  xf86XVUpdateCompositeClip(portPriv);

+

+  /* translate the video region to the screen */

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

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

+  WinBox.x2 = WinBox.x1 + portPriv->drw_w;

+  WinBox.y2 = WinBox.y1 + portPriv->drw_h;

+

+  /* clip to the window composite clip */

+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);

+  REGION_NULL(pScreen, &ClipRegion);

+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, portPriv->pCompositeClip);

+

+  /* clip and translate to the viewport */

+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {

+     RegionRec VPReg;

+     BoxRec VPBox;

+

+     VPBox.x1 = portPriv->pScrn->frameX0;

+     VPBox.y1 = portPriv->pScrn->frameY0;

+     VPBox.x2 = portPriv->pScrn->frameX1 + 1;

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

+

+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);

+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);

+     REGION_UNINIT(pScreen, &VPReg);

+  }

+

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

+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {

+	clippedAway = TRUE;

+	goto CLIP_VIDEO_BAILOUT;

+  }

+

+  /* bailout if we have to clip but the hardware doesn't support it */

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

+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);

+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||

+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||

+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))

+     {

+	    clippedAway = TRUE;

+	    goto CLIP_VIDEO_BAILOUT;

+     }

+  }

+

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

+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);

+  }

+

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

+			WinBox.x1, WinBox.y1,

+			&ClipRegion, portPriv->DevPriv.ptr,

+			portPriv->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;

+

+  REGION_UNINIT(pScreen, &WinRegion);

+  REGION_UNINIT(pScreen, &ClipRegion);

+

+  return ret;

+}

+

+

+static int

+xf86XVReputAllVideo(WindowPtr pWin, pointer data)

+{

+    XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);

+

+    while(WinPriv) {

+	if(WinPriv->PortRec->type == XvInputMask)

+	    xf86XVReputVideo(WinPriv->PortRec);

+	else

+	    xf86XVRegetVideo(WinPriv->PortRec);

+	WinPriv = WinPriv->next;

+    }

+

+    return WT_WALKCHILDREN;

+}

+

+static int

+xf86XVEnlistPortInWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)

+{

+   XF86XVWindowPtr winPriv, PrivRoot;

+

+   winPriv = PrivRoot = GET_XF86XV_WINDOW(pWin);

+

+  /* Enlist our port in the window private */

+   while(winPriv) {

+	if(winPriv->PortRec == portPriv) /* we're already listed */

+	    break;

+	winPriv = winPriv->next;

+   }

+

+   if(!winPriv) {

+	winPriv = 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;

+}

+

+/****  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;

+     if(WinPriv->pGC) {

+       FreeGC(WinPriv->pGC, 0);

+     }

+     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

+xf86XVWindowExposures(WindowPtr pWin, RegionPtr reg1, RegionPtr reg2)

+{

+  ScreenPtr pScreen = pWin->drawable.pScreen;

+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

+  XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);

+  XF86XVWindowPtr pPrev;

+  XvPortRecPrivatePtr pPriv;

+  Bool AreasExposed;

+

+  AreasExposed = (WinPriv && reg1 && REGION_NOTEMPTY(pScreen, reg1));

+

+  pScreen->WindowExposures = ScreenPriv->WindowExposures;

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

+  pScreen->WindowExposures = xf86XVWindowExposures;

+

+  /* filter out XClearWindow/Area */

+  if (!pWin->valdata) return;

+

+  pPrev = NULL;

+

+  while(WinPriv) {

+     pPriv = WinPriv->PortRec;

+

+     /* Reput anyone with a reput function */

+

+     switch(pPriv->type) {

+     case XvInputMask:

+	xf86XVReputVideo(pPriv);

+	break;

+     case XvOutputMask:

+	xf86XVRegetVideo(pPriv);

+	break;

+     default:  /* overlaid still/image*/

+	if (pPriv->AdaptorRec->ReputImage)

+	   xf86XVReputImage(pPriv);

+	else if(AreasExposed) {

+	    XF86XVWindowPtr tmp;

+

+	    if (pPriv->isOn == XV_ON) {

+		(*pPriv->AdaptorRec->StopVideo)(

+		    pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);

+		pPriv->isOn = XV_PENDING;

+	    }

+	    pPriv->pDraw = NULL;

+

+	    if(!pPrev)

+		dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey,

+			      WinPriv->next);

+	    else

+	       pPrev->next = WinPriv->next;

+	    tmp = WinPriv;

+	    WinPriv = WinPriv->next;

+	    free(tmp);

+	    continue;

+	}

+	break;

+     }

+     pPrev = WinPriv;

+     WinPriv = WinPriv->next;

+  }

+}

+

+

+static void

+xf86XVClipNotify(WindowPtr pWin, int dx, int dy)

+{

+  ScreenPtr pScreen = pWin->drawable.pScreen;

+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

+  XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);

+  XF86XVWindowPtr tmp, pPrev = NULL;

+  XvPortRecPrivatePtr pPriv;

+  Bool visible = (pWin->visibility == VisibilityUnobscured) ||

+		 (pWin->visibility == VisibilityPartiallyObscured);

+

+  while(WinPriv) {

+     pPriv = WinPriv->PortRec;

+

+     if(!pPriv) goto next;

+ 

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

+	REGION_DESTROY(pScreen, pPriv->pCompositeClip);

+

+     pPriv->pCompositeClip = NULL;

+

+     if (pPriv->AdaptorRec->ClipNotify)

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

+                                         pWin, dx, dy);

+

+     /* Stop everything except images, but stop them too if the

+	window isn't visible.  But we only remove the images. */

+

+     if(pPriv->type || !visible) {

+	if(pPriv->isOn == XV_ON) {

+	    (*pPriv->AdaptorRec->StopVideo)(

+			pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);

+	    pPriv->isOn = XV_PENDING;

+	}

+

+	if(!pPriv->type) {  /* overlaid still/image */

+	    pPriv->pDraw = NULL;

+

+	    if(!pPrev)

+		dixSetPrivate(&pWin->devPrivates, XF86XVWindowKey,

+			      WinPriv->next);

+	    else

+	       pPrev->next = WinPriv->next;

+	    tmp = WinPriv;

+	    WinPriv = WinPriv->next;

+	    free(tmp);

+	    continue;

+	}

+     }

+

+next:

+     pPrev = WinPriv;

+     WinPriv = WinPriv->next;

+  }

+

+  if(ScreenPriv->ClipNotify) {

+      pScreen->ClipNotify = ScreenPriv->ClipNotify;

+      (*pScreen->ClipNotify)(pWin, dx, dy);

+      pScreen->ClipNotify = xf86XVClipNotify;

+  }

+}

+

+

+

+/**** Required XvScreenRec fields ****/

+

+static Bool

+xf86XVCloseScreen(int i, ScreenPtr pScreen)

+{

+  ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);

+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

+  XvAdaptorPtr pa;

+  int c;

+

+  if(!ScreenPriv) return TRUE;

+

+  if(ScreenPriv->videoGC) {

+     FreeGC(ScreenPriv->videoGC, 0);

+     ScreenPriv->videoGC = NULL;

+  }

+

+  pScreen->DestroyWindow = ScreenPriv->DestroyWindow;

+  pScreen->WindowExposures = ScreenPriv->WindowExposures;

+  pScreen->ClipNotify = ScreenPriv->ClipNotify;

+

+  pScrn->EnterVT = ScreenPriv->EnterVT;

+  pScrn->LeaveVT = ScreenPriv->LeaveVT;

+  pScrn->AdjustFrame = ScreenPriv->AdjustFrame;

+

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

+       xf86XVFreeAdaptor(pa);

+  }

+

+  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)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

+    Bool ret;

+

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

+

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

+

+    return ret;

+}

+

+static void

+xf86XVLeaveVT(int index, int flags)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);

+    XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

+    XvAdaptorPtr pAdaptor;

+    XvPortPtr pPort;

+    XvPortRecPrivatePtr pPriv;

+    int i, j;

+

+    for(i = 0; i < pxvs->nAdaptors; i++) {

+	pAdaptor = &pxvs->pAdaptors[i];

+	for(j = 0; j < pAdaptor->nPorts; j++) {

+	    pPort = &pAdaptor->pPorts[j];

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

+	    if(pPriv->isOn > XV_OFF) {

+

+		(*pPriv->AdaptorRec->StopVideo)(

+			pPriv->pScrn, pPriv->DevPriv.ptr, TRUE);

+		pPriv->isOn = XV_OFF;

+

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

+		    REGION_DESTROY(pScreen, pPriv->pCompositeClip);

+

+		pPriv->pCompositeClip = NULL;

+

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

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

+		}

+	    }

+	}

+    }

+

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

+}

+

+static void

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

+{

+  ScrnInfoPtr pScrn = xf86Screens[index];

+  ScreenPtr pScreen = pScrn->pScreen;

+  XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);

+  XF86XVScreenPtr ScreenPriv = GET_XF86XV_SCREEN(pScreen);

+  WindowPtr pWin;

+  XvAdaptorPtr pa;

+  int c, i;

+

+  if(ScreenPriv->AdjustFrame) {

+	pScrn->AdjustFrame = ScreenPriv->AdjustFrame;

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

+	pScrn->AdjustFrame = xf86XVAdjustFrame;

+  }

+

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

+      XvPortPtr pPort = pa->pPorts;

+      XvPortRecPrivatePtr pPriv;

+

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

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

+

+	if(!pPriv->type && (pPriv->isOn != XV_OFF)) { /* overlaid still/image */

+

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

+	     REGION_DESTROY(pScreen, pPriv->pCompositeClip);

+

+	  pPriv->pCompositeClip = NULL;

+

+	  pWin = (WindowPtr)pPriv->pDraw;

+

+	  if ((pPriv->AdaptorRec->ReputImage) &&

+	     ((pWin->visibility == VisibilityUnobscured) ||

+	      (pWin->visibility == VisibilityPartiallyObscured)))

+	  {

+	      xf86XVReputImage(pPriv);

+	  } else if (pPriv->isOn == XV_ON) {

+	     (*pPriv->AdaptorRec->StopVideo)(

+				 pPriv->pScrn, pPriv->DevPriv.ptr, FALSE);

+	     xf86XVRemovePortFromWindow(pWin, pPriv);

+	     pPriv->isOn = XV_PENDING;

+	     continue;

+	  }

+	}

+     }

+  }

+}

+

+

+/**** XvAdaptorRec fields ****/

+

+static int

+xf86XVAllocatePort(

+   unsigned long port,

+   XvPortPtr pPort,

+   XvPortPtr *ppPort

+){

+  *ppPort = pPort;

+  return Success;

+}

+

+

+

+static int

+xf86XVFreePort(XvPortPtr pPort)

+{

+  return Success;

+}

+

+

+static int

+xf86XVPutVideo(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y,

+   CARD16 vid_w, CARD16 vid_h,

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+  int result;

+

+  /* No dumping video to pixmaps... For now anyhow */

+  if(pDraw->type != DRAWABLE_WINDOW) {

+      pPort->pDraw = (DrawablePtr)NULL;

+      return BadAlloc;

+  }

+

+  /* If we are changing windows, unregister our port in the old window */

+  if(portPriv->pDraw && (portPriv->pDraw != pDraw))

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

+

+  /* Register our port with the new window */

+  result =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);

+  if(result != Success) return result;

+

+  portPriv->type = XvInputMask;

+

+  /* save a copy of these parameters */

+  portPriv->vid_x = vid_x;  portPriv->vid_y = vid_y;

+  portPriv->vid_w = vid_w;  portPriv->vid_h = vid_h;

+  portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;

+  portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;

+

+  /* make sure we have the most recent copy of the clientClip */

+  xf86XVCopyClip(portPriv, pGC);

+

+  /* To indicate to the DI layer that we were successful */

+  pPort->pDraw = pDraw;

+

+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */

+

+  return(xf86XVReputVideo(portPriv));

+}

+

+static int

+xf86XVPutStill(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y,

+   CARD16 vid_w, CARD16 vid_h,

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+  ScreenPtr pScreen;

+  RegionRec WinRegion;

+  RegionRec ClipRegion;

+  BoxRec WinBox;

+  int ret = Success;

+  Bool clippedAway = FALSE;

+

+  if (pDraw->type != DRAWABLE_WINDOW)

+      return BadAlloc;

+

+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */

+

+  pScreen = pDraw->pScreen;

+

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

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

+  WinBox.x2 = WinBox.x1 + drw_w;

+  WinBox.y2 = WinBox.y1 + drw_h;

+

+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);

+  REGION_NULL(pScreen, &ClipRegion);

+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);

+

+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {

+     RegionRec VPReg;

+     BoxRec VPBox;

+

+     VPBox.x1 = portPriv->pScrn->frameX0;

+     VPBox.y1 = portPriv->pScrn->frameY0;

+     VPBox.x2 = portPriv->pScrn->frameX1 + 1;

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

+

+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);

+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);

+     REGION_UNINIT(pScreen, &VPReg);

+  }

+

+  if(portPriv->pDraw) {

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

+  }

+

+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {

+     clippedAway = TRUE;

+     goto PUT_STILL_BAILOUT;

+  }

+

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

+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);

+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||

+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||

+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))

+     {

+	  clippedAway = TRUE;

+	  goto PUT_STILL_BAILOUT;

+     }

+  }

+

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

+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);

+  }

+

+  ret = (*portPriv->AdaptorRec->PutStill)(portPriv->pScrn,

+		vid_x, vid_y, WinBox.x1, WinBox.y1,

+		vid_w, vid_h, drw_w, drw_h,

+		&ClipRegion, portPriv->DevPriv.ptr,

+		pDraw);

+

+  if((ret == Success) &&

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

+

+     xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);

+     portPriv->isOn = XV_ON;

+     portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;

+     portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;

+     portPriv->type = 0;  /* no mask means it's transient and should

+			     not be reput once it's removed */

+     pPort->pDraw = pDraw;  /* make sure we can get stop requests */

+  }

+

+PUT_STILL_BAILOUT:

+

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

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

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

+	portPriv->isOn = XV_PENDING;

+  }

+

+  REGION_UNINIT(pScreen, &WinRegion);

+  REGION_UNINIT(pScreen, &ClipRegion);

+

+  return ret;

+}

+

+static int

+xf86XVGetVideo(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y,

+   CARD16 vid_w, CARD16 vid_h,

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+  int result;

+

+  /* No pixmaps... For now anyhow */

+  if(pDraw->type != DRAWABLE_WINDOW) {

+      pPort->pDraw = (DrawablePtr)NULL;

+      return BadAlloc;

+  }

+

+  /* If we are changing windows, unregister our port in the old window */

+  if(portPriv->pDraw && (portPriv->pDraw != pDraw))

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

+

+  /* Register our port with the new window */

+  result =  xf86XVEnlistPortInWindow((WindowPtr)pDraw, portPriv);

+  if(result != Success) return result;

+

+  portPriv->type = XvOutputMask;

+

+  /* save a copy of these parameters */

+  portPriv->vid_x = vid_x;  portPriv->vid_y = vid_y;

+  portPriv->vid_w = vid_w;  portPriv->vid_h = vid_h;

+  portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;

+  portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;

+

+  /* make sure we have the most recent copy of the clientClip */

+  xf86XVCopyClip(portPriv, pGC);

+

+  /* To indicate to the DI layer that we were successful */

+  pPort->pDraw = pDraw;

+

+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */

+

+  return(xf86XVRegetVideo(portPriv));

+}

+

+static int

+xf86XVGetStill(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 vid_x, INT16 vid_y,

+   CARD16 vid_w, CARD16 vid_h,

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+  ScreenPtr pScreen;

+  RegionRec WinRegion;

+  RegionRec ClipRegion;

+  BoxRec WinBox;

+  int ret = Success;

+  Bool clippedAway = FALSE;

+

+  if (pDraw->type != DRAWABLE_WINDOW)

+      return BadAlloc;

+

+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */

+

+  pScreen = pDraw->pScreen;

+

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

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

+  WinBox.x2 = WinBox.x1 + drw_w;

+  WinBox.y2 = WinBox.y1 + drw_h;

+

+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);

+  REGION_NULL(pScreen, &ClipRegion);

+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);

+

+  if(portPriv->pDraw) {

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

+  }

+

+  if(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {

+     clippedAway = TRUE;

+     goto GET_STILL_BAILOUT;

+  }

+

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

+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);

+  }

+

+  ret = (*portPriv->AdaptorRec->GetStill)(portPriv->pScrn,

+		vid_x, vid_y, WinBox.x1, WinBox.y1,

+		vid_w, vid_h, drw_w, drw_h,

+		&ClipRegion, portPriv->DevPriv.ptr,

+		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;

+  }

+

+  REGION_UNINIT(pScreen, &WinRegion);

+  REGION_UNINIT(pScreen, &ClipRegion);

+

+  return ret;

+}

+

+

+

+static int

+xf86XVStopVideo(

+   ClientPtr client,

+   XvPortPtr pPort,

+   DrawablePtr pDraw

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+

+  if(pDraw->type != DRAWABLE_WINDOW)

+      return BadAlloc;

+

+  xf86XVRemovePortFromWindow((WindowPtr)pDraw, portPriv);

+

+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */

+

+  /* Must free resources. */

+

+  if(portPriv->isOn > XV_OFF) {

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

+		portPriv->pScrn, portPriv->DevPriv.ptr, TRUE);

+	portPriv->isOn = XV_OFF;

+  }

+

+  return Success;

+}

+

+static int

+xf86XVSetPortAttribute(

+   ClientPtr client,

+   XvPortPtr pPort,

+   Atom attribute,

+   INT32 value

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+

+  return((*portPriv->AdaptorRec->SetPortAttribute)(portPriv->pScrn,

+		attribute, value, portPriv->DevPriv.ptr));

+}

+

+

+static int

+xf86XVGetPortAttribute(

+   ClientPtr client,

+   XvPortPtr pPort,

+   Atom attribute,

+   INT32 *p_value

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+

+  return((*portPriv->AdaptorRec->GetPortAttribute)(portPriv->pScrn,

+		attribute, p_value, portPriv->DevPriv.ptr));

+}

+

+

+

+static int

+xf86XVQueryBestSize(

+   ClientPtr client,

+   XvPortPtr pPort,

+   CARD8 motion,

+   CARD16 vid_w, CARD16 vid_h,

+   CARD16 drw_w, CARD16 drw_h,

+   unsigned int *p_w, unsigned int *p_h

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+

+  (*portPriv->AdaptorRec->QueryBestSize)(portPriv->pScrn,

+		(Bool)motion, vid_w, vid_h, drw_w, drw_h,

+		p_w, p_h, portPriv->DevPriv.ptr);

+

+  return Success;

+}

+

+

+static int

+xf86XVPutImage(

+   ClientPtr client,

+   DrawablePtr pDraw,

+   XvPortPtr pPort,

+   GCPtr pGC,

+   INT16 src_x, INT16 src_y,

+   CARD16 src_w, CARD16 src_h,

+   INT16 drw_x, INT16 drw_y,

+   CARD16 drw_w, CARD16 drw_h,

+   XvImagePtr format,

+   unsigned char* data,

+   Bool sync,

+   CARD16 width, CARD16 height

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+  ScreenPtr pScreen;

+  RegionRec WinRegion;

+  RegionRec ClipRegion;

+  BoxRec WinBox;

+  int ret = Success;

+  Bool clippedAway = FALSE;

+

+  if (pDraw->type != DRAWABLE_WINDOW)

+      return BadAlloc;

+

+  if(!portPriv->pScrn->vtSema) return Success; /* Success ? */

+

+  pScreen = pDraw->pScreen;

+

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

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

+  WinBox.x2 = WinBox.x1 + drw_w;

+  WinBox.y2 = WinBox.y1 + drw_h;

+

+  REGION_INIT(pScreen, &WinRegion, &WinBox, 1);

+  REGION_NULL(pScreen, &ClipRegion);

+  REGION_INTERSECT(pScreen, &ClipRegion, &WinRegion, pGC->pCompositeClip);

+

+  if(portPriv->AdaptorRec->flags & VIDEO_CLIP_TO_VIEWPORT) {

+     RegionRec VPReg;

+     BoxRec VPBox;

+

+     VPBox.x1 = portPriv->pScrn->frameX0;

+     VPBox.y1 = portPriv->pScrn->frameY0;

+     VPBox.x2 = portPriv->pScrn->frameX1 + 1;

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

+

+     REGION_INIT(pScreen, &VPReg, &VPBox, 1);

+     REGION_INTERSECT(pScreen, &ClipRegion, &ClipRegion, &VPReg);

+     REGION_UNINIT(pScreen, &VPReg);

+  }

+

+  /* If 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(!REGION_NOTEMPTY(pScreen, &ClipRegion)) {

+     clippedAway = TRUE;

+     goto PUT_IMAGE_BAILOUT;

+  }

+

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

+     BoxPtr clipBox = REGION_RECTS(&ClipRegion);

+     if(  (REGION_NUM_RECTS(&ClipRegion) != 1) ||

+	  (clipBox->x1 != WinBox.x1) || (clipBox->x2 != WinBox.x2) ||

+	  (clipBox->y1 != WinBox.y1) || (clipBox->y2 != WinBox.y2))

+     {

+	  clippedAway = TRUE;

+	  goto PUT_IMAGE_BAILOUT;

+     }

+  }

+

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

+     REGION_SUBTRACT(pScreen, &ClipRegion, &WinRegion, &ClipRegion);

+  }

+

+  ret = (*portPriv->AdaptorRec->PutImage)(portPriv->pScrn,

+		src_x, src_y, WinBox.x1, WinBox.y1,

+		src_w, src_h, drw_w, drw_h, format->id, data, width, height,

+		sync, &ClipRegion, portPriv->DevPriv.ptr,

+		pDraw);

+

+  if((ret == Success) &&

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

+

+     portPriv->isOn = XV_ON;

+     portPriv->drw_x = drw_x;  portPriv->drw_y = drw_y;

+     portPriv->drw_w = drw_w;  portPriv->drw_h = drw_h;

+     portPriv->type = 0;  /* no mask means it's transient and should

+			     not be reput once it's removed */

+     pPort->pDraw = pDraw;  /* make sure we can get stop requests */

+  }

+

+PUT_IMAGE_BAILOUT:

+

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

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

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

+	portPriv->isOn = XV_PENDING;

+  }

+

+  REGION_UNINIT(pScreen, &WinRegion);

+  REGION_UNINIT(pScreen, &ClipRegion);

+

+  return ret;

+}

+

+

+static  int

+xf86XVQueryImageAttributes(

+   ClientPtr client,

+   XvPortPtr pPort,

+   XvImagePtr format,

+   CARD16 *width,

+   CARD16 *height,

+   int *pitches,

+   int *offsets

+){

+  XvPortRecPrivatePtr portPriv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);

+

+  return (*portPriv->AdaptorRec->QueryImageAttributes)(portPriv->pScrn,

+			format->id, width, height, pitches, offsets);

+}

+

+

+void

+xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr clipboxes)

+{

+   ScreenPtr pScreen = pDraw->pScreen;

+   WindowPtr pWin = (WindowPtr)pDraw;

+   XF86XVWindowPtr pPriv = GET_XF86XV_WINDOW(pWin);

+   GCPtr pGC = NULL;

+   BoxPtr pbox = REGION_RECTS(clipboxes);

+   int i, nbox = REGION_NUM_RECTS(clipboxes);

+   xRectangle *rects;

+

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

+

+   if(pPriv)

+      pGC = pPriv->pGC;

+

+   if(!pGC) {

+       int status;

+       XID pval[2];

+       pval[0] = key;

+       pval[1] = IncludeInferiors;

+       pGC = CreateGC(pDraw, GCForeground | GCSubwindowMode, pval, &status,

+		      (XID)0, serverClient);

+       if(!pGC) return;

+       ValidateGC(pDraw, pGC);

+       if (pPriv) pPriv->pGC = pGC;

+   } else if (key != pGC->fgPixel){

+       ChangeGCVal val;

+       val.val = key;

+       ChangeGC(NullClient, pGC, GCForeground, &val);

+       ValidateGC(pDraw, pGC);

+   }

+

+   REGION_TRANSLATE(pDraw->pScreen, clipboxes, -pDraw->x, -pDraw->y);

+

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

+

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

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

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

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

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

+   }

+

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

+

+   if (!pPriv) FreeGC(pGC, 0);

+

+   free(rects);

+}

+

+void

+xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr clipboxes)

+{

+   DrawablePtr root = &WindowTable[pScreen->myNum]->drawable;

+   ChangeGCVal pval[2];

+   BoxPtr pbox = REGION_RECTS(clipboxes);

+   int i, nbox = REGION_NUM_RECTS(clipboxes);

+   xRectangle *rects;

+   GCPtr gc;

+

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

+

+   gc = GetScratchGC(root->depth, pScreen);

+   pval[0].val = key;

+   pval[1].val = IncludeInferiors;

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

+   ValidateGC(root, gc);

+

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

+

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

+   {

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

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

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

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

+   }

+   

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

+   

+   free(rects);

+   FreeScratchGC (gc);

+}

+

+/* xf86XVClipVideoHelper -

+

+   Takes the dst box in standard X BoxRec form (top and left

+   edges inclusive, bottom and right exclusive).  The new dst

+   box is returned.  The source boundaries are given (x1, y1

+   inclusive, x2, y2 exclusive) and returned are the new source

+   boundaries in 16.16 fixed point.

+*/

+

+#define DummyScreen screenInfo.screens[0]

+

+Bool

+xf86XVClipVideoHelper(

+    BoxPtr dst,

+    INT32 *xa,

+    INT32 *xb,

+    INT32 *ya,

+    INT32 *yb,

+    RegionPtr reg,

+    INT32 width,

+    INT32 height

+){

+    double xsw, xdw, ysw, ydw;

+    INT32 delta;

+    BoxPtr extents = REGION_EXTENTS(DummyScreen, reg);

+    int diff;

+

+    xsw = (*xb - *xa) << 16;

+    xdw = dst->x2 - dst->x1;

+    ysw = (*yb - *ya) << 16;

+    ydw = dst->y2 - dst->y1;

+

+    *xa <<= 16; *xb <<= 16;

+    *ya <<= 16; *yb <<= 16;

+

+    diff = extents->x1 - dst->x1;

+    if (diff > 0) {

+	dst->x1 = extents->x1;

+	*xa += (diff * xsw) / xdw;

+    }

+    diff = dst->x2 - extents->x2;

+    if (diff > 0) {

+	dst->x2 = extents->x2;

+	*xb -= (diff * xsw) / xdw;

+    }

+    diff = extents->y1 - dst->y1;

+    if (diff > 0) {

+	dst->y1 = extents->y1;

+	*ya += (diff * ysw) / ydw;

+    }

+    diff = dst->y2 - extents->y2;

+    if (diff > 0) {

+	dst->y2 = extents->y2;

+	*yb -= (diff * ysw) / ydw;

+    }

+

+    if (*xa < 0) {

+	diff = (((-*xa) * xdw) + xsw - 1) / xsw;

+	dst->x1 += diff;

+	*xa += (diff * xsw) / xdw;

+    }

+    delta = *xb - (width << 16);

+    if (delta > 0) {

+	diff = ((delta * xdw) + xsw - 1) / xsw;

+	dst->x2 -= diff;

+	*xb -= (diff * xsw) / xdw;

+    }

+    if (*xa >= *xb) return FALSE;

+

+    if (*ya < 0) {

+	diff = (((-*ya) * ydw) + ysw - 1) / ysw;

+	dst->y1 += diff;

+	*ya += (diff * ysw) / ydw;

+    }

+    delta = *yb - (height << 16);

+    if (delta > 0) {

+	diff = ((delta * ydw) + ysw - 1) / ysw;

+	dst->y2 -= diff;

+	*yb -= (diff * ysw) / ydw;

+    }

+    if (*ya >= *yb) return FALSE;

+

+    if ((dst->x1 > extents->x1) || (dst->x2 < extents->x2) ||

+	(dst->y1 > extents->y1) || (dst->y2 < extents->y2))

+    {

+	RegionRec clipReg;

+	REGION_INIT(DummyScreen, &clipReg, dst, 1);

+	REGION_INTERSECT(DummyScreen, reg, reg, &clipReg);

+	REGION_UNINIT(DummyScreen, &clipReg);

+    }

+    return TRUE;

+}

+

+void

+xf86XVCopyYUV12ToPacked(

+    const void *srcy,

+    const void *srcv,

+    const void *srcu,

+    void *dst,

+    int srcPitchy,

+    int srcPitchuv,

+    int dstPitch,

+    int h,

+    int w

+){

+    CARD32 *Dst;

+    const CARD8 *Y, *U, *V;

+    int i, j;

+

+    w >>= 1;

+

+    for (j = 0;  j < h;  j++) {

+	Dst = dst;

+	Y = srcy;  V = srcv;  U = srcu;

+	i = w;

+	while (i >= 4) {

+#if X_BYTE_ORDER == X_LITTLE_ENDIAN

+	    Dst[0] = Y[0] | (Y[1] << 16) | (U[0] << 8) | (V[0] << 24);

+	    Dst[1] = Y[2] | (Y[3] << 16) | (U[1] << 8) | (V[1] << 24);

+	    Dst[2] = Y[4] | (Y[5] << 16) | (U[2] << 8) | (V[2] << 24);

+	    Dst[3] = Y[6] | (Y[7] << 16) | (U[3] << 8) | (V[3] << 24);

+#else

+	    /* This assumes a little-endian framebuffer */

+	    Dst[0] = (Y[0] << 24) | (Y[1] << 8) | (U[0] << 16) | V[0];

+	    Dst[1] = (Y[2] << 24) | (Y[3] << 8) | (U[1] << 16) | V[1];

+	    Dst[2] = (Y[4] << 24) | (Y[5] << 8) | (U[2] << 16) | V[2];

+	    Dst[3] = (Y[6] << 24) | (Y[7] << 8) | (U[3] << 16) | V[3];

+#endif

+	    Dst += 4;  Y += 8;  V += 4;  U += 4;

+	    i -= 4;

+	}

+

+	while (i--) {

+#if X_BYTE_ORDER == X_LITTLE_ENDIAN

+	    Dst[0] = Y[0] | (Y[1] << 16) | (U[0] << 8) | (V[0] << 24);

+#else

+	    /* This assumes a little-endian framebuffer */

+	    Dst[0] = (Y[0] << 24) | (Y[1] << 8) | (U[0] << 16) | V[0];

+#endif

+	    Dst++;  Y += 2;  V++;  U++;

+	}

+

+	dst = (CARD8 *)dst + dstPitch;

+	srcy = (const CARD8 *)srcy + srcPitchy;

+	if (j & 1) {

+	    srcu = (const CARD8 *)srcu + srcPitchuv;

+	    srcv = (const CARD8 *)srcv + srcPitchuv;

+	}

+    }

+}

+

+void

+xf86XVCopyPacked(

+    const void *src,

+    void *dst,

+    int srcPitch,

+    int dstPitch,

+    int h,

+    int w

+){

+    const CARD32 *Src;

+    CARD32 *Dst;

+    int i;

+

+    w >>= 1;

+    while (--h >= 0) {

+	do {

+	    Dst = dst;  Src = src;

+	    i = w;

+	    while (i >= 4) {

+		Dst[0] = Src[0];

+		Dst[1] = Src[1];

+		Dst[2] = Src[2];

+		Dst[3] = Src[3];

+		Dst += 4;  Src += 4;  i -= 4;

+	    }

+	    if (!i) break;

+	    Dst[0] = Src[0];

+	    if (i == 1) break;

+	    Dst[1] = Src[1];

+	    if (i == 2) break;

+	    Dst[2] = Src[2];

+	} while (0);

+

+	src = (const CARD8 *)src + srcPitch;

+	dst = (CARD8 *)dst + dstPitch;

+    }

+}