svn merge ^/branches/released .

1 files changed, 1360 insertions, 1359 deletions

diff --git a/xorg-server/hw/xwin/winshadddnl.c b/xorg-server/hw/xwin/winshadddnl.c
index 4a573470d..da3c56160 100644
--- a/xorg-server/hw/xwin/winshadddnl.c
+++ b/xorg-server/hw/xwin/winshadddnl.c
@@ -1,1359 +1,1360 @@
-/*
- *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
- *
- *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 XFREE86 PROJECT 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 XFree86 Project
- *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 XFree86 Project.
- *
- * Authors:	Dakshinamurthy Karra
- *		Suhaib M Siddiqi
- *		Peter Busch
- *		Harold L Hunt II
- */
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-#include "win.h"
-
-
-/*
- * FIXME: Headers are broken, DEFINE_GUID doesn't work correctly,
- * so we have to redefine it here.
- */
-#ifndef _MSC_VER
-#ifdef DEFINE_GUID
-#undef DEFINE_GUID
-#define DEFINE_GUID(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) const GUID n GUID_SECT = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
-#endif /* DEFINE_GUID */
-#endif
-
-/*
- * FIXME: Headers are broken, IID_IDirectDraw4 has to be defined
- * here manually.  Should be handled by ddraw.h
- */
-#ifndef IID_IDirectDraw4
-DEFINE_GUID( IID_IDirectDraw4, 0x9c59509a,0x39bd,0x11d1,0x8c,0x4a,0x00,0xc0,0x4f,0xd9,0x30,0xc5 );
-#endif /* IID_IDirectDraw4 */
-
-#define FAIL_MSG_MAX_BLT	10
-
-
-/*
- * Local prototypes
- */
-
-static Bool
-winAllocateFBShadowDDNL (ScreenPtr pScreen);
-
-static void
-winShadowUpdateDDNL (ScreenPtr pScreen, 
-		     shadowBufPtr pBuf);
-
-static Bool
-winCloseScreenShadowDDNL (int nIndex, ScreenPtr pScreen);
-
-static Bool
-winInitVisualsShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winAdjustVideoModeShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winBltExposedRegionsShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winActivateAppShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winRedrawScreenShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winRealizeInstalledPaletteShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winInstallColormapShadowDDNL (ColormapPtr pColormap);
-
-static Bool
-winStoreColorsShadowDDNL (ColormapPtr pmap, 
-			  int ndef,
-			  xColorItem *pdefs);
-
-static Bool
-winCreateColormapShadowDDNL (ColormapPtr pColormap);
-
-static Bool
-winDestroyColormapShadowDDNL (ColormapPtr pColormap);
-
-static Bool
-winCreatePrimarySurfaceShadowDDNL (ScreenPtr pScreen);
-
-static Bool
-winReleasePrimarySurfaceShadowDDNL (ScreenPtr pScreen);
-
-static HRESULT myIDirectDrawSurface4_Blt( ScreenPtr pScreen, RECT *pRect, RECT *prcSrc)
-{
-  HRESULT ddrval = DD_OK;
-  unsigned i;
-  winScreenPriv(pScreen);
-
-  for (i = 0; i < 3; ++i)
-  {
-    ddrval = IDirectDrawSurface4_Blt(pScreenPriv->pddsPrimary4, pRect, pScreenPriv->pddsShadow4, prcSrc, DDBLT_WAIT, NULL);
-     /* Try to regain the primary surface and blit again if we've lost it */
-    if (ddrval == DDERR_SURFACELOST)
-    {
-      /* Surface was lost */
-      ErrorF ("IDirectDrawSurface4_Blt reported that the primary "
-              "surface was lost, trying to restore, retry: %d\n", i + 1);
-    
-      /* Try to restore the surface, once */
-      
-      if (i==1)
-      {
-        ErrorF("Recreating DDraw surface because restoring of surface didn't work.\n");
-        winAllocateFBShadowDDNL(pScreen);
-      }
-      else
-      {
-        ddrval = IDirectDraw4_RestoreAllSurfaces (pScreenPriv->pdd4);
-        ErrorF ("IDirectDraw4_RestoreAllSurfaces returned: ");
-        if (ddrval == DD_OK)
-          ErrorF ("DD_OK\n");
-        else if (ddrval == DDERR_WRONGMODE)
-          ErrorF ("DDERR_WRONGMODE\n");
-        else if (ddrval == DDERR_INCOMPATIBLEPRIMARY)
-          ErrorF ("DDERR_INCOMPATIBLEPRIMARY\n");
-        else if (ddrval == DDERR_UNSUPPORTED)
-          ErrorF ("DDERR_UNSUPPORTED\n");
-        else if (ddrval == DDERR_INVALIDPARAMS)
-          ErrorF ("DDERR_INVALIDPARAMS\n");
-        else if (ddrval == DDERR_INVALIDOBJECT)
-          ErrorF ("DDERR_INVALIDOBJECT\n");
-        else
-          ErrorF ("unknown error: %08x\n", ddrval);
-      }
-      /* Loop around to try the blit one more time */
-      continue;
-    }
-    else if (FAILED (ddrval))
-    {
-      ErrorF ("IDirectDrawSurface4_Blt failed, but surface not "
-              "lost: %08x %d\n", ddrval, ddrval);
-    }
-    break;
-  }    
-  return ddrval;
-}
-
-
-/*
- * Create the primary surface and attach the clipper.
- * Used for both the initial surface creation and during
- * WM_DISPLAYCHANGE messages.
- */
-
-static Bool
-winCreatePrimarySurfaceShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  HRESULT		ddrval = DD_OK;
-  DDSURFACEDESC2	ddsd;
-
-  winDebug ("winCreatePrimarySurfaceShadowDDNL - Creating primary surface\n");
-
-  /* Describe the primary surface */
-  ZeroMemory (&ddsd, sizeof (ddsd));
-  ddsd.dwSize = sizeof (ddsd);
-  ddsd.dwFlags = DDSD_CAPS;
-  ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
-  
-  /* Create the primary surface */
-  ddrval = IDirectDraw4_CreateSurface (pScreenPriv->pdd4,
-				       &ddsd,
-				       &pScreenPriv->pddsPrimary4,
-				       NULL);
-  pScreenPriv->fRetryCreateSurface = FALSE;
-  if (FAILED (ddrval))
-    {
-      if (ddrval == DDERR_NOEXCLUSIVEMODE)
-        {
-          /* Recreating the surface failed. Mark screen to retry later */ 
-          pScreenPriv->fRetryCreateSurface = TRUE;
-          winDebug ("winCreatePrimarySurfaceShadowDDNL - Could not create "
-	          "primary surface: DDERR_NOEXCLUSIVEMODE\n");
-        }
-      else
-        {
-          ErrorF ("winCreatePrimarySurfaceShadowDDNL - Could not create "
-	          "primary surface: %08x\n", (unsigned int) ddrval);
-        }
-      return FALSE;
-    }
-  
-  winDebug ("winCreatePrimarySurfaceShadowDDNL - Created primary surface\n");
-
-  /* Attach our clipper to our primary surface handle */
-  ddrval = IDirectDrawSurface4_SetClipper (pScreenPriv->pddsPrimary4,
-					   pScreenPriv->pddcPrimary);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winCreatePrimarySurfaceShadowDDNL - Primary attach clipper "
-	      "failed: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  winDebug ("winCreatePrimarySurfaceShadowDDNL - Attached clipper to primary "
-	  "surface\n");
-
-  /* Everything was correct */
-  return TRUE;
-}
-
-
-static void ClosePrimarySurfaceShadowDDNL (winPrivScreenPtr pScreenPriv)
-{
-  /* Release the primary surface and clipper, if they exist */
-  if (pScreenPriv->pddsPrimary4)
-    {
-      /*
-       * Detach the clipper from the primary surface.
-       * NOTE: We do this explicity for clarity.  The Clipper is not released.
-       */
-      IDirectDrawSurface4_SetClipper (pScreenPriv->pddsPrimary4, NULL);
-  
-      winDebug ("winReleasePrimarySurfaceShadowDDNL - Detached clipper\n");
-
-      /* Release the primary surface */
-      IDirectDrawSurface4_Release (pScreenPriv->pddsPrimary4);
-      pScreenPriv->pddsPrimary4 = NULL;
-    }
-
-}
-
-static void ReleaseDDNL(winPrivScreenPtr pScreenPriv)
-{
-  /* Release the clipper object */
-  if (pScreenPriv->pddcPrimary)
-    {
-      IDirectDrawClipper_Release (pScreenPriv->pddcPrimary);
-      pScreenPriv->pddcPrimary = NULL;
-    }
-
-  /* Free the DirectDraw4 object, if there is one */
-  if (pScreenPriv->pdd4)
-    {
-      IDirectDraw4_RestoreDisplayMode (pScreenPriv->pdd4);
-      IDirectDraw4_Release (pScreenPriv->pdd4);
-      pScreenPriv->pdd4 = NULL;
-    }
-
-  /* Free the DirectDraw object, if there is one */
-  if (pScreenPriv->pdd)
-    {
-      IDirectDraw_Release (pScreenPriv->pdd);
-      pScreenPriv->pdd = NULL;
-    }
-}
-
-/*
- * Detach the clipper and release the primary surface.
- * Called from WM_DISPLAYCHANGE.
- */
-
-static Bool
-winReleasePrimarySurfaceShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-
-  winDebug ("winReleasePrimarySurfaceShadowDDNL - Hello\n");
-
-  ClosePrimarySurfaceShadowDDNL(pScreenPriv);
-
-  winDebug ("winReleasePrimarySurfaceShadowDDNL - Released primary surface\n");
-  
-  return TRUE;
-}
-
-
-/*
- * Create a DirectDraw surface for the shadow framebuffer; also create
- * a primary surface object so we can blit to the display.
- * 
- * Install a DirectDraw clipper on our primary surface object
- * that clips our blits to the unobscured client area of our display window.
- */
-
-Bool
-winAllocateFBShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;  
-  HRESULT		ddrval = DD_OK;
-  DDSURFACEDESC2	ddsdShadow;
-  char			*lpSurface = NULL;
-  DDPIXELFORMAT		ddpfPrimary;
-
-  winDebug ("winAllocateFBShadowDDNL - w %d h %d d %d\n",
-	  pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenInfo->dwDepth);
-
-  /* Set the padded screen width */
-  pScreenInfo->dwPaddedWidth = PixmapBytePad (pScreenInfo->dwWidth,
-					      pScreenInfo->dwBPP);
-
-  if ( pScreenInfo->pfb)
-  {
-    ErrorF("winAllocateFBShadowDDNL calling for the second time, reallocating\n");
-    lpSurface=pScreenInfo->pfb;
-
-    if (pScreenPriv->pddsShadow4)
-    {
-      IDirectDrawSurface4_Release (pScreenPriv->pddsShadow4);
-      pScreenPriv->pddsShadow4 = NULL;
-    }
-    ClosePrimarySurfaceShadowDDNL(pScreenPriv);
-    ReleaseDDNL(pScreenPriv);
-  }
-  else
-  {
-    /* Allocate memory for our shadow surface */
-    lpSurface = malloc (pScreenInfo->dwPaddedWidth * pScreenInfo->dwHeight);
-    if (lpSurface == NULL)
-      {
-        ErrorF ("winAllocateFBShadowDDNL - Could not allocate bits\n");
-        return FALSE;
-      }
-  
-    /*
-     * Initialize the framebuffer memory so we don't get a 
-     * strange display at startup
-     */
-    ZeroMemory (lpSurface, pScreenInfo->dwPaddedWidth * pScreenInfo->dwHeight);
-  }
-  /* Create a clipper */
-  ddrval = (*g_fpDirectDrawCreateClipper) (0,
-					   &pScreenPriv->pddcPrimary,
-					   NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - Could not attach clipper: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  winDebug ("winAllocateFBShadowDDNL - Created a clipper\n");
-
-  /* Attach the clipper to our display window */
-  ddrval = IDirectDrawClipper_SetHWnd (pScreenPriv->pddcPrimary,
-				       0,
-				       pScreenPriv->hwndScreen);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - Clipper not attached "
-	      "to window: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  winDebug ("winAllocateFBShadowDDNL - Attached clipper to window\n");
-
-  /* Create a DirectDraw object, store the address at lpdd */
-  ddrval = (*g_fpDirectDrawCreate) (NULL,
-				    (LPDIRECTDRAW*) &pScreenPriv->pdd,
-				    NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - Could not start "
-	      "DirectDraw: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  winDebug ("winAllocateFBShadowDDNL - Created and initialized DD\n");
-
-  /* Get a DirectDraw4 interface pointer */
-  ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,
-				       &IID_IDirectDraw4,
-				       (LPVOID*) &pScreenPriv->pdd4);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - Failed DD4 query: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  /* Are we full screen? */
-  if (pScreenInfo->fFullScreen)
-    {
-      DDSURFACEDESC2	ddsdCurrent;
-      DWORD		dwRefreshRateCurrent = 0;
-      HDC		hdc = NULL;
-
-      /* Set the cooperative level to full screen */
-      ddrval = IDirectDraw4_SetCooperativeLevel (pScreenPriv->pdd4,
-						 pScreenPriv->hwndScreen,
-						 DDSCL_EXCLUSIVE
-						 | DDSCL_FULLSCREEN);
-      if (FAILED (ddrval))
-	{
-	  ErrorF ("winAllocateFBShadowDDNL - Could not set "
-		  "cooperative level: %08x\n",
-		  (unsigned int) ddrval);
-	  return FALSE;
-	}
-
-      /*
-       * We only need to get the current refresh rate for comparison
-       * if a refresh rate has been passed on the command line.
-       */
-      if (pScreenInfo->dwRefreshRate != 0)
-	{
-	  ZeroMemory (&ddsdCurrent, sizeof (ddsdCurrent));
-	  ddsdCurrent.dwSize = sizeof (ddsdCurrent);
-
-	  /* Get information about current display settings */
-	  ddrval = IDirectDraw4_GetDisplayMode (pScreenPriv->pdd4,
-						&ddsdCurrent);
-	  if (FAILED (ddrval))
-	    {
-	      ErrorF ("winAllocateFBShadowDDNL - Could not get current "
-		      "refresh rate: %08x.  Continuing.\n",
-		      (unsigned int) ddrval);
-	      dwRefreshRateCurrent = 0;
-	    }
-	  else
-	    {
-	      /* Grab the current refresh rate */
-	      dwRefreshRateCurrent = ddsdCurrent.u2.dwRefreshRate;
-	    }
-	}
-
-      /* Clean up the refresh rate */
-      if (dwRefreshRateCurrent == pScreenInfo->dwRefreshRate)
-	{
-	  /*
-	   * Refresh rate is non-specified or equal to current.
-	   */
-	  pScreenInfo->dwRefreshRate = 0;
-	}
-
-      /* Grab a device context for the screen */
-      hdc = GetDC (NULL);
-      if (hdc == NULL)
-	{
-	  ErrorF ("winAllocateFBShadowDDNL - GetDC () failed\n");
-	  return FALSE;
-	}
-
-      /* Only change the video mode when different than current mode */
-      if (!pScreenInfo->fMultipleMonitors
-	  && (pScreenInfo->dwWidth != GetSystemMetrics (SM_CXSCREEN)
-	      || pScreenInfo->dwHeight != GetSystemMetrics (SM_CYSCREEN)
-	      || pScreenInfo->dwBPP != GetDeviceCaps (hdc, BITSPIXEL)
-	      || pScreenInfo->dwRefreshRate != 0))
-	{
-	  winDebug ("winAllocateFBShadowDDNL - Changing video mode\n");
-
-	  /* Change the video mode to the mode requested, and use the driver default refresh rate on failure */
-	  ddrval = IDirectDraw4_SetDisplayMode (pScreenPriv->pdd4,
-						pScreenInfo->dwWidth,
-						pScreenInfo->dwHeight,
-						pScreenInfo->dwBPP,
-						pScreenInfo->dwRefreshRate,
-						0);	       
-	  if (FAILED (ddrval))
-	    {
-	      ErrorF ("winAllocateFBShadowDDNL - Could not set "
-		      "full screen display mode: %08x\n",
-		      (unsigned int) ddrval);
-	      ErrorF ("winAllocateFBShadowDDNL - Using default driver refresh rate\n");
-	      ddrval = IDirectDraw4_SetDisplayMode (pScreenPriv->pdd4,
-						    pScreenInfo->dwWidth,
-						    pScreenInfo->dwHeight,
-						    pScreenInfo->dwBPP,
-						    0,
-						    0);
-	      if (FAILED(ddrval))
-		{
-			ErrorF ("winAllocateFBShadowDDNL - Could not set default refresh rate "
-				"full screen display mode: %08x\n",
-				(unsigned int) ddrval);
-			return FALSE;
-		}
-	    }
-	}
-      else
-	{
-	  winDebug ("winAllocateFBShadowDDNL - Not changing video mode\n");
-	}
-
-      /* Release our DC */
-      ReleaseDC (NULL, hdc);
-      hdc = NULL;
-    }
-  else
-    {
-      /* Set the cooperative level for windowed mode */
-      ddrval = IDirectDraw4_SetCooperativeLevel (pScreenPriv->pdd4,
-						 pScreenPriv->hwndScreen,
-						 DDSCL_NORMAL);
-      if (FAILED (ddrval))
-	{
-	  ErrorF ("winAllocateFBShadowDDNL - Could not set "
-		  "cooperative level: %08x\n",
-		  (unsigned int) ddrval);
-	  return FALSE;
-	}
-    }
-
-  /* Create the primary surface */
-  if (!winCreatePrimarySurfaceShadowDDNL (pScreen))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - winCreatePrimarySurfaceShadowDDNL "
-	      "failed\n");
-      return FALSE;
-    }
-
-  /* Get primary surface's pixel format */
-  ZeroMemory (&ddpfPrimary, sizeof (ddpfPrimary));
-  ddpfPrimary.dwSize = sizeof (ddpfPrimary);
-  ddrval = IDirectDrawSurface4_GetPixelFormat (pScreenPriv->pddsPrimary4,
-					       &ddpfPrimary);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - Could not get primary "
-	      "pixformat: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  winDebug ("winAllocateFBShadowDDNL - Primary masks: %08x %08x %08x "
-	  "dwRGBBitCount: %d\n",
-	  ddpfPrimary.u2.dwRBitMask,
-	  ddpfPrimary.u3.dwGBitMask,
-	  ddpfPrimary.u4.dwBBitMask,
-	  ddpfPrimary.u1.dwRGBBitCount);
-
-  /* Describe the shadow surface to be created */
-  /*
-   * NOTE: Do not use a DDSCAPS_VIDEOMEMORY surface,
-   * as drawing, locking, and unlocking take forever
-   * with video memory surfaces.  In addition,
-   * video memory is a somewhat scarce resource,
-   * so you shouldn't be allocating video memory when
-   * you have the option of using system memory instead.
-   */
-  ZeroMemory (&ddsdShadow, sizeof (ddsdShadow));
-  ddsdShadow.dwSize = sizeof (ddsdShadow);
-  ddsdShadow.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH
-    | DDSD_LPSURFACE | DDSD_PITCH | DDSD_PIXELFORMAT;
-  ddsdShadow.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
-  ddsdShadow.dwHeight = pScreenInfo->dwHeight;
-  ddsdShadow.dwWidth = pScreenInfo->dwWidth;
-  ddsdShadow.u1.lPitch = pScreenInfo->dwPaddedWidth;
-  ddsdShadow.lpSurface = lpSurface;
-  ddsdShadow.u4.ddpfPixelFormat = ddpfPrimary;
-  
-  winDebug ("winAllocateFBShadowDDNL - lPitch: %d\n",
-	  (int) pScreenInfo->dwPaddedWidth);
-
-  /* Create the shadow surface */
-  ddrval = IDirectDraw4_CreateSurface (pScreenPriv->pdd4,
-				       &ddsdShadow,
-				       &pScreenPriv->pddsShadow4,
-				       NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDDNL - Could not create shadow "
-	      "surface: %08x\n", (unsigned int) ddrval);
-      return FALSE;
-    }
-  
-  winDebug ("winAllocateFBShadowDDNL - Created shadow pitch: %d\n",
-	  (int) ddsdShadow.u1.lPitch);
-
-  /* Grab the pitch from the surface desc */
-  pScreenInfo->dwStride = (ddsdShadow.u1.lPitch * 8)
-    / pScreenInfo->dwBPP;
-
-  winDebug ("winAllocateFBShadowDDNL - Created shadow stride: %d\n",
-	  (int) pScreenInfo->dwStride);
-
-  /* Save the pointer to our surface memory */
-  pScreenInfo->pfb = lpSurface;
-  
-  /* Grab the masks from the surface description */
-  pScreenPriv->dwRedMask = ddsdShadow.u4.ddpfPixelFormat.u2.dwRBitMask;
-  pScreenPriv->dwGreenMask = ddsdShadow.u4.ddpfPixelFormat.u3.dwGBitMask;
-  pScreenPriv->dwBlueMask = ddsdShadow.u4.ddpfPixelFormat.u4.dwBBitMask;
-
-  winDebug ("winAllocateFBShadowDDNL - Returning\n");
-
-  return TRUE;
-}
-
-static void
-winFreeFBShadowDDNL(ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
-
-  /* Free the shadow surface, if there is one */
-  if (pScreenPriv->pddsShadow4)
-    {
-      IDirectDrawSurface4_Release (pScreenPriv->pddsShadow4);
-      free (pScreenInfo->pfb);
-      pScreenInfo->pfb = NULL;
-      pScreenPriv->pddsShadow4 = NULL;
-    }
-
-  /* Detach the clipper from the primary surface and release the primary surface, if there is one */
-  winReleasePrimarySurfaceShadowDDNL(pScreen);
-
-  ReleaseDDNL(pScreenPriv);
-
-  /* Invalidate the ScreenInfo's fb pointer */
-  pScreenInfo->pfb = NULL;
-}
-
-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
-/*
- * Create a DirectDraw surface for the new multi-window window
- */
-
-static
-Bool
-winFinishCreateWindowsWindowDDNL (WindowPtr pWin)
-{
-  winWindowPriv(pWin);
-  winPrivScreenPtr	pScreenPriv = pWinPriv->pScreenPriv;
-  HRESULT		ddrval = DD_OK;
-  DDSURFACEDESC2	ddsd;
-  int			iWidth, iHeight;
-  int			iX, iY;
-
-  winDebug ("winFinishCreateWindowsWindowDDNL!\n\n");
-
-  iX = pWin->drawable.x + GetSystemMetrics (SM_XVIRTUALSCREEN);
-  iY = pWin->drawable.y + GetSystemMetrics (SM_YVIRTUALSCREEN);
-  
-  iWidth = pWin->drawable.width;
-  iHeight = pWin->drawable.height;
-
-  /* Describe the primary surface */
-  ZeroMemory (&ddsd, sizeof (ddsd));
-  ddsd.dwSize = sizeof (ddsd);
-  ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;
-  ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
-  ddsd.dwHeight = iHeight;
-  ddsd.dwWidth = iWidth;
-
-  /* Create the primary surface */
-  ddrval = IDirectDraw4_CreateSurface (pScreenPriv->pdd4,
-				       &ddsd,
-				       &pWinPriv->pddsPrimary4,
-				       NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winFinishCreateWindowsWindowDDNL - Could not create primary "
-	      "surface: %08x\n",
-	      (unsigned int)ddrval);
-      return FALSE;
-    }
-  return TRUE;
-}
-#endif
-
-
-/*
- * Transfer the damaged regions of the shadow framebuffer to the display.
- */
-
-static void
-winShadowUpdateDDNL (ScreenPtr pScreen, 
-		     shadowBufPtr pBuf)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RegionPtr		damage = shadowDamage(pBuf);
-  RECT			rcDest, rcSrc;
-  POINT			ptOrigin;
-  DWORD			dwBox = RegionNumRects (damage);
-  BoxPtr		pBox = RegionRects (damage);
-  HRGN			hrgnTemp = NULL, hrgnCombined = NULL;
-
-  /*
-   * Return immediately if the app is not active
-   * and we are fullscreen, or if we have a bad display depth
-   */
-  if ((!pScreenPriv->fActive && pScreenInfo->fFullScreen)
-      || pScreenPriv->fBadDepth) return;
-
-  /* Return immediately if we didn't get needed surfaces */
-  if (!pScreenPriv->pddsPrimary4 || !pScreenPriv->pddsShadow4)
-    return;
-
-  /* Get the origin of the window in the screen coords */
-  ptOrigin.x = pScreenInfo->dwXOffset;
-  ptOrigin.y = pScreenInfo->dwYOffset;
-  MapWindowPoints (pScreenPriv->hwndScreen,
-		   HWND_DESKTOP,
-		   (LPPOINT)&ptOrigin, 1);
-
-  /*
-   * Handle small regions with multiple blits,
-   * handle large regions by creating a clipping region and 
-   * doing a single blit constrained to that clipping region.
-   */
-  if (pScreenInfo->dwClipUpdatesNBoxes == 0
-      || dwBox < pScreenInfo->dwClipUpdatesNBoxes)
-    {
-      /* Loop through all boxes in the damaged region */
-      while (dwBox--)
-	{
-	  /* Assign damage box to source rectangle */
-	  rcSrc.left = pBox->x1;
-	  rcSrc.top = pBox->y1;
-	  rcSrc.right = pBox->x2;
-	  rcSrc.bottom = pBox->y2;
-	  
-	  /* Calculate destination rectangle */
-	  rcDest.left = ptOrigin.x + rcSrc.left;
-	  rcDest.top = ptOrigin.y + rcSrc.top;
-	  rcDest.right = ptOrigin.x + rcSrc.right;
-	  rcDest.bottom = ptOrigin.y + rcSrc.bottom;
-	  
-	  /* Blit the damaged areas */
-	  if (pScreenPriv->pddsPrimary4)
-	    myIDirectDrawSurface4_Blt (pScreen,
-				    &rcDest,
-				    &rcSrc);
-	  
-	  /* Get a pointer to the next box */
-	  ++pBox;
-	}
-    }
-  else
-    {
-      BoxPtr		pBoxExtents = RegionExtents(damage);
-
-      /* Compute a GDI region from the damaged region */
-      hrgnCombined = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);
-      dwBox--;
-      pBox++;
-      while (dwBox--)
-	{
-	  hrgnTemp = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);
-	  CombineRgn (hrgnCombined, hrgnCombined, hrgnTemp, RGN_OR);
-	  DeleteObject (hrgnTemp);
-	  pBox++;
-	}
-
-      /* Install the GDI region as a clipping region */
-      SelectClipRgn (pScreenPriv->hdcScreen, hrgnCombined);
-      DeleteObject (hrgnCombined);
-      hrgnCombined = NULL;
-
-      winDebug ("winShadowUpdateDDNL - be x1 %d y1 %d x2 %d y2 %d\n",
-	      pBoxExtents->x1, pBoxExtents->y1,
-	      pBoxExtents->x2, pBoxExtents->y2);
-
-      /* Calculating a bounding box for the source is easy */
-      rcSrc.left = pBoxExtents->x1;
-      rcSrc.top = pBoxExtents->y1;
-      rcSrc.right = pBoxExtents->x2;
-      rcSrc.bottom = pBoxExtents->y2;
-
-      /* Calculating a bounding box for the destination is trickier */
-      rcDest.left = ptOrigin.x + rcSrc.left;
-      rcDest.top = ptOrigin.y + rcSrc.top;
-      rcDest.right = ptOrigin.x + rcSrc.right;
-      rcDest.bottom = ptOrigin.y + rcSrc.bottom;
-
-      /* Our Blt should be clipped to the invalidated region */
-      myIDirectDrawSurface4_Blt (pScreen, &rcDest, &rcSrc);
-
-      /* Reset the clip region */
-      SelectClipRgn (pScreenPriv->hdcScreen, NULL);
-    }
-}
-
-static Bool
-winInitScreenShadowDDNL(ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-
-  /* Get a device context for the screen  */
-  pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
-
-  return winAllocateFBShadowDDNL(pScreen);
-}
-
-/*
- * Call the wrapped CloseScreen function.
- *
- * Free our resources and private structures.
- */
-
-static Bool
-winCloseScreenShadowDDNL (int nIndex, ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  Bool			fReturn;
-
-  winDebug ("winCloseScreenShadowDDNL - Freeing screen resources\n");
-
-  /* Flag that the screen is closed */
-  pScreenPriv->fClosed = TRUE;
-  pScreenPriv->fActive = FALSE;
-
-  /* Call the wrapped CloseScreen procedure */
-  WIN_UNWRAP(CloseScreen);
-  fReturn = (*pScreen->CloseScreen) (nIndex, pScreen);
-
-  winFreeFBShadowDDNL(pScreen);
-
-  /* Free the screen DC */
-  ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
-
-  /* Delete the window property */
-  RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
-
-  /* Delete tray icon, if we have one */
-  if (!pScreenInfo->fNoTrayIcon)
-    winDeleteNotifyIcon (pScreenPriv);
-
-  /* Free the exit confirmation dialog box, if it exists */
-  if (g_hDlgExit != NULL)
-    {
-      DestroyWindow (g_hDlgExit);
-      g_hDlgExit = NULL;
-    }
-
-  /* Kill our window */
-  if (pScreenPriv->hwndScreen)
-    {
-      DestroyWindow (pScreenPriv->hwndScreen);
-      pScreenPriv->hwndScreen = NULL;
-    }
-
-#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
-  /* Destroy the thread startup mutex */
-  pthread_mutex_destroy (&pScreenPriv->pmServerStarted);
-#endif
-
-  /* Kill our screeninfo's pointer to the screen */
-  pScreenInfo->pScreen = NULL;
-
-  /* Free the screen privates for this screen */
-  free ((pointer) pScreenPriv);
-
-  return fReturn;
-}
-
-
-/*
- * Tell mi what sort of visuals we need.
- *
- * Generally we only need one visual, as our screen can only
- * handle one format at a time, I believe.  You may want
- * to verify that last sentence.
- */
-
-static Bool
-winInitVisualsShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  DWORD			dwRedBits, dwGreenBits, dwBlueBits;
-
-  /* Count the number of ones in each color mask */
-  dwRedBits = winCountBits (pScreenPriv->dwRedMask);
-  dwGreenBits = winCountBits (pScreenPriv->dwGreenMask);
-  dwBlueBits = winCountBits (pScreenPriv->dwBlueMask);
-  
-  /* Store the maximum number of ones in a color mask as the bitsPerRGB */
-  if (dwRedBits == 0 || dwGreenBits == 0 || dwBlueBits == 0)
-    pScreenPriv->dwBitsPerRGB = 8;
-  else if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
-    pScreenPriv->dwBitsPerRGB = dwRedBits;
-  else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
-    pScreenPriv->dwBitsPerRGB = dwGreenBits;
-  else
-    pScreenPriv->dwBitsPerRGB = dwBlueBits;
-
-  winDebug ("winInitVisualsShadowDDNL - Masks %08x %08x %08x BPRGB %d d %d "
-	  "bpp %d\n",
-	  (unsigned int) pScreenPriv->dwRedMask,
-	  (unsigned int) pScreenPriv->dwGreenMask,
-	  (unsigned int) pScreenPriv->dwBlueMask,
-	  (int) pScreenPriv->dwBitsPerRGB,
-	  (int) pScreenInfo->dwDepth,
-	  (int) pScreenInfo->dwBPP);
-
-  /* Create a single visual according to the Windows screen depth */
-  switch (pScreenInfo->dwDepth)
-    {
-    case 24:
-    case 16:
-    case 15:
-      /* Setup the real visual */
-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     TrueColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     -1,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "
-		  "failed for TrueColor\n");
-	  return FALSE;
-	}
-
-#ifdef XWIN_EMULATEPSEUDO
-      if (!pScreenInfo->fEmulatePseudo)
-	break;
-
-      /* Setup a pseudocolor visual */
-      if (!miSetVisualTypesAndMasks (8,
-				     PseudoColorMask,
-				     8,
-				     -1,
-				     0,
-				     0,
-				     0))
-	{
-	  ErrorF ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "
-		  "failed for PseudoColor\n");
-	  return FALSE;
-	}
-#endif
-      break;
-
-    case 8:
-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     pScreenInfo->fFullScreen 
-				     ? PseudoColorMask : StaticColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     pScreenInfo->fFullScreen 
-				     ? PseudoColor : StaticColor,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "
-		  "failed\n");
-	  return FALSE;
-	}
-      break;
-
-    default:
-      ErrorF ("winInitVisualsShadowDDNL - Unknown screen depth\n");
-      return FALSE;
-    }
-
-  winDebug ("winInitVisualsShadowDDNL - Returning\n");
-
-  return TRUE;
-}
-
-
-/*
- * Adjust the user proposed video mode
- */
-
-static Bool
-winAdjustVideoModeShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  HDC			hdc = NULL;
-  DWORD			dwBPP;
-
-  /* We're in serious trouble if we can't get a DC */
-  hdc = GetDC (NULL);
-  if (hdc == NULL)
-    {
-      ErrorF ("winAdjustVideoModeShadowDDNL - GetDC () failed\n");
-      return FALSE;
-    }
-
-  /* Query GDI for current display depth */
-  dwBPP = GetDeviceCaps (hdc, BITSPIXEL);
-
-  /* DirectDraw can only change the depth in fullscreen mode */
-  if (!(pScreenInfo->fFullScreen &&
-        (pScreenInfo->dwBPP != WIN_DEFAULT_BPP)))
-    {
-      /* Otherwise, We'll use GDI's depth */
-      pScreenInfo->dwBPP = dwBPP;
-    }
-
-  /* Release our DC */
-  ReleaseDC (NULL, hdc);
-
-  return TRUE;
-}
-
-
-/*
- * Blt exposed regions to the screen
- */
-
-static Bool
-winBltExposedRegionsShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RECT			rcSrc, rcDest;
-  POINT			ptOrigin;
-  HDC			hdcUpdate;
-  PAINTSTRUCT		ps;
-  HRESULT		ddrval = DD_OK;
-  Bool			fReturn = TRUE;
-  int			i;
-
-  /* Quite common case. The primary surface was lost (maybe because of depth
-   * change). Try to create a new primary surface. Bail out if this fails */
-  if (pScreenPriv->pddsPrimary4 == NULL && pScreenPriv->fRetryCreateSurface &&
-      !winCreatePrimarySurfaceShadowDDNL(pScreen))
-    {
-      Sleep(100);
-      return FALSE;
-    }
-  if (pScreenPriv->pddsPrimary4 == NULL)
-    return FALSE;  
-  
-  /* BeginPaint gives us an hdc that clips to the invalidated region */
-  hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);
-  if (hdcUpdate == NULL)
-    {
-      fReturn = FALSE;
-      ErrorF ("winBltExposedRegionsShadowDDNL - BeginPaint () returned "
-	      "a NULL device context handle.  Aborting blit attempt.\n");
-      goto winBltExposedRegionsShadowDDNL_Exit;
-    }
-
-  /* Get the origin of the window in the screen coords */
-  ptOrigin.x = pScreenInfo->dwXOffset;
-  ptOrigin.y = pScreenInfo->dwYOffset;
-
-  MapWindowPoints (pScreenPriv->hwndScreen,
-		   HWND_DESKTOP,
-		   (LPPOINT)&ptOrigin, 1);
-  rcDest.left = ptOrigin.x;
-  rcDest.right = ptOrigin.x + pScreenInfo->dwWidth;
-  rcDest.top = ptOrigin.y;
-  rcDest.bottom = ptOrigin.y + pScreenInfo->dwHeight;
-
-  /* Source can be entire shadow surface, as Blt should clip for us */
-  rcSrc.left = 0;
-  rcSrc.top = 0;
-  rcSrc.right = pScreenInfo->dwWidth;
-  rcSrc.bottom = pScreenInfo->dwHeight;
-
-      /* Our Blt should be clipped to the invalidated region */
-  ddrval = myIDirectDrawSurface4_Blt (pScreen, &rcDest, &rcSrc);
-  if (FAILED (ddrval))
-	{
-	  fReturn = FALSE;
-	}
-
-winBltExposedRegionsShadowDDNL_Exit:
-  /* EndPaint frees the DC */
-  if (hdcUpdate != NULL)
-    EndPaint (pScreenPriv->hwndScreen, &ps);
-  return fReturn;
-}
-
-
-/*
- * Do any engine-specific application-activation processing
- */
-
-static Bool
-winActivateAppShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-
-  /*
-   * Do we have a surface?
-   * Are we active?
-   * Are we full screen?
-   */
-  if (pScreenPriv != NULL
-      && pScreenPriv->pddsPrimary4 != NULL
-      && pScreenPriv->fActive)
-    {
-      /* Primary surface was lost, restore it */
-      IDirectDrawSurface4_Restore (pScreenPriv->pddsPrimary4);
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Reblit the shadow framebuffer to the screen.
- */
-
-static Bool
-winRedrawScreenShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RECT			rcSrc, rcDest;
-  POINT			ptOrigin;
-
-  /* Get the origin of the window in the screen coords */
-  ptOrigin.x = pScreenInfo->dwXOffset;
-  ptOrigin.y = pScreenInfo->dwYOffset;
-  MapWindowPoints (pScreenPriv->hwndScreen,
-		   HWND_DESKTOP,
-		   (LPPOINT)&ptOrigin, 1);
-  rcDest.left = ptOrigin.x;
-  rcDest.right = ptOrigin.x + pScreenInfo->dwWidth;
-  rcDest.top = ptOrigin.y;
-  rcDest.bottom = ptOrigin.y + pScreenInfo->dwHeight;
-
-  /* Source can be entire shadow surface, as Blt should clip for us */
-  rcSrc.left = 0;
-  rcSrc.top = 0;
-  rcSrc.right = pScreenInfo->dwWidth;
-  rcSrc.bottom = pScreenInfo->dwHeight;
-
-  /* Redraw the whole window, to take account for the new colors */
-  myIDirectDrawSurface4_Blt (pScreen, &rcDest, &rcSrc);
-  return TRUE;
-}
-
-
-/*
- * Realize the currently installed colormap
- */
-
-static Bool
-winRealizeInstalledPaletteShadowDDNL (ScreenPtr pScreen)
-{
-  return TRUE;
-}
-
-
-/*
- * Install the specified colormap
- */
-
-static Bool
-winInstallColormapShadowDDNL (ColormapPtr pColormap)
-{
-  ScreenPtr		pScreen = pColormap->pScreen;
-  winScreenPriv(pScreen);
-  winCmapPriv(pColormap);
-  HRESULT		ddrval = DD_OK;
-
-  /* Install the DirectDraw palette on the primary surface */
-  ddrval = IDirectDrawSurface4_SetPalette (pScreenPriv->pddsPrimary4,
-					   pCmapPriv->lpDDPalette);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winInstallColormapShadowDDNL - Failed installing the "
-	      "DirectDraw palette.\n");
-      return FALSE;
-    }
-
-  /* Save a pointer to the newly installed colormap */
-  pScreenPriv->pcmapInstalled = pColormap;
-
-  return TRUE;
-}
-
-
-/*
- * Store the specified colors in the specified colormap
- */
-
-static Bool
-winStoreColorsShadowDDNL (ColormapPtr pColormap, 
-			  int ndef,
-			  xColorItem *pdefs)
-{
-  ScreenPtr		pScreen = pColormap->pScreen;
-  winScreenPriv(pScreen);
-  winCmapPriv(pColormap);
-  ColormapPtr		curpmap = pScreenPriv->pcmapInstalled;
-  HRESULT		ddrval = DD_OK;
-  
-  /* Put the X colormap entries into the Windows logical palette */
-  ddrval = IDirectDrawPalette_SetEntries (pCmapPriv->lpDDPalette,
-					  0,
-					  pdefs[0].pixel,
-					  ndef,
-					  pCmapPriv->peColors 
-					  + pdefs[0].pixel);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winStoreColorsShadowDDNL - SetEntries () failed: %08x\n", (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  /* Don't install the DirectDraw palette if the colormap is not installed */
-  if (pColormap != curpmap)
-    {
-      return TRUE;
-    }
-
-  if (!winInstallColormapShadowDDNL (pColormap))
-    {
-      ErrorF ("winStoreColorsShadowDDNL - Failed installing colormap\n");
-      return FALSE;
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Colormap initialization procedure
- */
-
-static Bool
-winCreateColormapShadowDDNL (ColormapPtr pColormap)
-{
-  HRESULT		ddrval = DD_OK;
-  ScreenPtr		pScreen = pColormap->pScreen;
-  winScreenPriv(pScreen);
-  winCmapPriv(pColormap);
-  
-  /* Create a DirectDraw palette */
-  ddrval = IDirectDraw4_CreatePalette (pScreenPriv->pdd4,
-				       DDPCAPS_8BIT | DDPCAPS_ALLOW256,
-				       pCmapPriv->peColors,
-				       &pCmapPriv->lpDDPalette,
-				       NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winCreateColormapShadowDDNL - CreatePalette failed\n");
-      return FALSE;
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Colormap destruction procedure
- */
-
-static Bool
-winDestroyColormapShadowDDNL (ColormapPtr pColormap)
-{
-  winScreenPriv(pColormap->pScreen);
-  winCmapPriv(pColormap);
-  HRESULT		ddrval = DD_OK;
-
-  /*
-   * Is colormap to be destroyed the default?
-   *
-   * Non-default colormaps should have had winUninstallColormap
-   * called on them before we get here.  The default colormap
-   * will not have had winUninstallColormap called on it.  Thus,
-   * we need to handle the default colormap in a special way.
-   */
-  if (pColormap->flags & IsDefault)
-    {
-      winDebug ("winDestroyColormapShadowDDNL - Destroying default colormap\n");
-      
-      /*
-       * FIXME: Walk the list of all screens, popping the default
-       * palette out of each screen device context.
-       */
-      
-      /* Pop the palette out of the primary surface */
-      ddrval = IDirectDrawSurface4_SetPalette (pScreenPriv->pddsPrimary4,
-					       NULL);
-      if (FAILED (ddrval))
-	{
-	  ErrorF ("winDestroyColormapShadowDDNL - Failed freeing the "
-		  "default colormap DirectDraw palette.\n");
-	  return FALSE;
-	}
-
-      /* Clear our private installed colormap pointer */
-      pScreenPriv->pcmapInstalled = NULL;
-    }
-  
-  /* Release the palette */
-  IDirectDrawPalette_Release (pCmapPriv->lpDDPalette);
- 
-  /* Invalidate the colormap privates */
-  pCmapPriv->lpDDPalette = NULL;
-
-  return TRUE;
-}
-
-
-/*
- * Set pointers to our engine specific functions
- */
-
-Bool
-winSetEngineFunctionsShadowDDNL (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  
-  /* Set our pointers */
-  pScreenPriv->pwinAllocateFB = winAllocateFBShadowDDNL;
-  pScreenPriv->pwinFreeFB = winFreeFBShadowDDNL;
-  pScreenPriv->pwinShadowUpdate = winShadowUpdateDDNL;
-  pScreenPriv->pwinInitScreen = winInitScreenShadowDDNL;
-  pScreenPriv->pwinCloseScreen = winCloseScreenShadowDDNL;
-  pScreenPriv->pwinInitVisuals = winInitVisualsShadowDDNL;
-  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowDDNL;
-  if (pScreenInfo->fFullScreen)
-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
-  else
-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
-  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
-  pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowDDNL;
-  pScreenPriv->pwinActivateApp = winActivateAppShadowDDNL;
-  pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowDDNL;
-  pScreenPriv->pwinRealizeInstalledPalette
-    = winRealizeInstalledPaletteShadowDDNL;
-  pScreenPriv->pwinInstallColormap = winInstallColormapShadowDDNL;
-  pScreenPriv->pwinStoreColors = winStoreColorsShadowDDNL;
-  pScreenPriv->pwinCreateColormap = winCreateColormapShadowDDNL;
-  pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowDDNL;
-  pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;
-  pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDDNL;
-  pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDDNL;
-#ifdef XWIN_MULTIWINDOW
-  pScreenPriv->pwinFinishCreateWindowsWindow
-    = winFinishCreateWindowsWindowDDNL;
-#endif
-
-  return TRUE;
-}
+/*

+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.

+ *

+ *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 XFREE86 PROJECT 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 XFree86 Project

+ *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 XFree86 Project.

+ *

+ * Authors:	Dakshinamurthy Karra

+ *		Suhaib M Siddiqi

+ *		Peter Busch

+ *		Harold L Hunt II

+ */

+

+#ifdef HAVE_XWIN_CONFIG_H

+#include <xwin-config.h>

+#endif

+#include "win.h"

+

+

+/*

+ * FIXME: Headers are broken, DEFINE_GUID doesn't work correctly,

+ * so we have to redefine it here.

+ */

+#ifndef _MSC_VER

+#ifdef DEFINE_GUID

+#undef DEFINE_GUID

+#define DEFINE_GUID(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) const GUID n GUID_SECT = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}

+#endif /* DEFINE_GUID */

+#endif

+

+/*

+ * FIXME: Headers are broken, IID_IDirectDraw4 has to be defined

+ * here manually.  Should be handled by ddraw.h

+ */

+#ifndef IID_IDirectDraw4

+DEFINE_GUID( IID_IDirectDraw4, 0x9c59509a,0x39bd,0x11d1,0x8c,0x4a,0x00,0xc0,0x4f,0xd9,0x30,0xc5 );

+#endif /* IID_IDirectDraw4 */

+

+#define FAIL_MSG_MAX_BLT	10

+

+

+/*

+ * Local prototypes

+ */

+

+static Bool

+winAllocateFBShadowDDNL (ScreenPtr pScreen);

+

+static void

+winShadowUpdateDDNL (ScreenPtr pScreen, 

+		     shadowBufPtr pBuf);

+

+static Bool

+winCloseScreenShadowDDNL (int nIndex, ScreenPtr pScreen);

+

+static Bool

+winInitVisualsShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winAdjustVideoModeShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winBltExposedRegionsShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winActivateAppShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winRedrawScreenShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winRealizeInstalledPaletteShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winInstallColormapShadowDDNL (ColormapPtr pColormap);

+

+static Bool

+winStoreColorsShadowDDNL (ColormapPtr pmap, 

+			  int ndef,

+			  xColorItem *pdefs);

+

+static Bool

+winCreateColormapShadowDDNL (ColormapPtr pColormap);

+

+static Bool

+winDestroyColormapShadowDDNL (ColormapPtr pColormap);

+

+static Bool

+winCreatePrimarySurfaceShadowDDNL (ScreenPtr pScreen);

+

+static Bool

+winReleasePrimarySurfaceShadowDDNL (ScreenPtr pScreen);

+

+static HRESULT myIDirectDrawSurface4_Blt( ScreenPtr pScreen, RECT *pRect, RECT *prcSrc)

+{

+  HRESULT ddrval = DD_OK;

+  unsigned i;

+  winScreenPriv(pScreen);

+

+  for (i = 0; i < 3; ++i)

+  {

+    ddrval = IDirectDrawSurface4_Blt(pScreenPriv->pddsPrimary4, pRect, pScreenPriv->pddsShadow4, prcSrc, DDBLT_WAIT, NULL);

+     /* Try to regain the primary surface and blit again if we've lost it */

+    if (ddrval == DDERR_SURFACELOST)

+    {

+      /* Surface was lost */

+      ErrorF ("IDirectDrawSurface4_Blt reported that the primary "

+              "surface was lost, trying to restore, retry: %d\n", i + 1);

+    

+      /* Try to restore the surface, once */

+      

+      if (i==1)

+      {

+        ErrorF("Recreating DDraw surface because restoring of surface didn't work.\n");

+        winAllocateFBShadowDDNL(pScreen);

+      }

+      else

+      {

+        ddrval = IDirectDraw4_RestoreAllSurfaces (pScreenPriv->pdd4);

+        ErrorF ("IDirectDraw4_RestoreAllSurfaces returned: ");

+        if (ddrval == DD_OK)

+          ErrorF ("DD_OK\n");

+        else if (ddrval == DDERR_WRONGMODE)

+          ErrorF ("DDERR_WRONGMODE\n");

+        else if (ddrval == DDERR_INCOMPATIBLEPRIMARY)

+          ErrorF ("DDERR_INCOMPATIBLEPRIMARY\n");

+        else if (ddrval == DDERR_UNSUPPORTED)

+          ErrorF ("DDERR_UNSUPPORTED\n");

+        else if (ddrval == DDERR_INVALIDPARAMS)

+          ErrorF ("DDERR_INVALIDPARAMS\n");

+        else if (ddrval == DDERR_INVALIDOBJECT)

+          ErrorF ("DDERR_INVALIDOBJECT\n");

+        else

+          ErrorF ("unknown error: %08x\n", ddrval);

+      }

+      /* Loop around to try the blit one more time */

+      continue;

+    }

+    else if (FAILED (ddrval))

+    {

+      ErrorF ("IDirectDrawSurface4_Blt failed, but surface not "

+              "lost: %08x %d\n", ddrval, ddrval);

+    }

+    break;

+  }    

+  return ddrval;

+}

+

+

+/*

+ * Create the primary surface and attach the clipper.

+ * Used for both the initial surface creation and during

+ * WM_DISPLAYCHANGE messages.

+ */

+

+static Bool

+winCreatePrimarySurfaceShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  HRESULT		ddrval = DD_OK;

+  DDSURFACEDESC2	ddsd;

+

+  winDebug ("winCreatePrimarySurfaceShadowDDNL - Creating primary surface\n");

+

+  /* Describe the primary surface */

+  ZeroMemory (&ddsd, sizeof (ddsd));

+  ddsd.dwSize = sizeof (ddsd);

+  ddsd.dwFlags = DDSD_CAPS;

+  ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

+  

+  /* Create the primary surface */

+  ddrval = IDirectDraw4_CreateSurface (pScreenPriv->pdd4,

+				       &ddsd,

+				       &pScreenPriv->pddsPrimary4,

+				       NULL);

+  pScreenPriv->fRetryCreateSurface = FALSE;

+  if (FAILED (ddrval))

+    {

+      if (ddrval == DDERR_NOEXCLUSIVEMODE)

+        {

+          /* Recreating the surface failed. Mark screen to retry later */ 

+          pScreenPriv->fRetryCreateSurface = TRUE;

+          winDebug ("winCreatePrimarySurfaceShadowDDNL - Could not create "

+	          "primary surface: DDERR_NOEXCLUSIVEMODE\n");

+        }

+      else

+        {

+          ErrorF ("winCreatePrimarySurfaceShadowDDNL - Could not create "

+	          "primary surface: %08x\n", (unsigned int) ddrval);

+        }

+      return FALSE;

+    }

+  

+  winDebug ("winCreatePrimarySurfaceShadowDDNL - Created primary surface\n");

+

+  /* Attach our clipper to our primary surface handle */

+  ddrval = IDirectDrawSurface4_SetClipper (pScreenPriv->pddsPrimary4,

+					   pScreenPriv->pddcPrimary);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winCreatePrimarySurfaceShadowDDNL - Primary attach clipper "

+	      "failed: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  winDebug ("winCreatePrimarySurfaceShadowDDNL - Attached clipper to primary "

+	  "surface\n");

+

+  /* Everything was correct */

+  return TRUE;

+}

+

+

+static void ClosePrimarySurfaceShadowDDNL (winPrivScreenPtr pScreenPriv)

+{

+  /* Release the primary surface and clipper, if they exist */

+  if (pScreenPriv->pddsPrimary4)

+    {

+      /*

+       * Detach the clipper from the primary surface.

+       * NOTE: We do this explicity for clarity.  The Clipper is not released.

+       */

+      IDirectDrawSurface4_SetClipper (pScreenPriv->pddsPrimary4, NULL);

+  

+      winDebug ("winReleasePrimarySurfaceShadowDDNL - Detached clipper\n");

+

+      /* Release the primary surface */

+      IDirectDrawSurface4_Release (pScreenPriv->pddsPrimary4);

+      pScreenPriv->pddsPrimary4 = NULL;

+    }

+

+}

+

+static void ReleaseDDNL(winPrivScreenPtr pScreenPriv)

+{

+  /* Release the clipper object */

+  if (pScreenPriv->pddcPrimary)

+    {

+      IDirectDrawClipper_Release (pScreenPriv->pddcPrimary);

+      pScreenPriv->pddcPrimary = NULL;

+    }

+

+  /* Free the DirectDraw4 object, if there is one */

+  if (pScreenPriv->pdd4)

+    {

+      IDirectDraw4_RestoreDisplayMode (pScreenPriv->pdd4);

+      IDirectDraw4_Release (pScreenPriv->pdd4);

+      pScreenPriv->pdd4 = NULL;

+    }

+

+  /* Free the DirectDraw object, if there is one */

+  if (pScreenPriv->pdd)

+    {

+      IDirectDraw_Release (pScreenPriv->pdd);

+      pScreenPriv->pdd = NULL;

+    }

+}

+

+/*

+ * Detach the clipper and release the primary surface.

+ * Called from WM_DISPLAYCHANGE.

+ */

+

+static Bool

+winReleasePrimarySurfaceShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+

+  winDebug ("winReleasePrimarySurfaceShadowDDNL - Hello\n");

+

+  ClosePrimarySurfaceShadowDDNL(pScreenPriv);

+

+  winDebug ("winReleasePrimarySurfaceShadowDDNL - Released primary surface\n");

+  

+  return TRUE;

+}

+

+

+/*

+ * Create a DirectDraw surface for the shadow framebuffer; also create

+ * a primary surface object so we can blit to the display.

+ * 

+ * Install a DirectDraw clipper on our primary surface object

+ * that clips our blits to the unobscured client area of our display window.

+ */

+

+Bool

+winAllocateFBShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;  

+  HRESULT		ddrval = DD_OK;

+  DDSURFACEDESC2	ddsdShadow;

+  char			*lpSurface = NULL;

+  DDPIXELFORMAT		ddpfPrimary;

+

+  winDebug ("winAllocateFBShadowDDNL - w %d h %d d %d\n",

+	  pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenInfo->dwDepth);

+

+  /* Set the padded screen width */

+  pScreenInfo->dwPaddedWidth = PixmapBytePad (pScreenInfo->dwWidth,

+					      pScreenInfo->dwBPP);

+

+  if ( pScreenInfo->pfb)

+  {

+    ErrorF("winAllocateFBShadowDDNL calling for the second time, reallocating\n");

+    lpSurface=pScreenInfo->pfb;

+

+    if (pScreenPriv->pddsShadow4)

+    {

+      IDirectDrawSurface4_Release (pScreenPriv->pddsShadow4);

+      pScreenPriv->pddsShadow4 = NULL;

+    }

+    ClosePrimarySurfaceShadowDDNL(pScreenPriv);

+    ReleaseDDNL(pScreenPriv);

+  }

+  else

+  {

+    /* Allocate memory for our shadow surface */

+    lpSurface = malloc (pScreenInfo->dwPaddedWidth * pScreenInfo->dwHeight);

+    if (lpSurface == NULL)

+      {

+        ErrorF ("winAllocateFBShadowDDNL - Could not allocate bits\n");

+        return FALSE;

+      }

+  

+    /*

+     * Initialize the framebuffer memory so we don't get a 

+     * strange display at startup

+     */

+    ZeroMemory (lpSurface, pScreenInfo->dwPaddedWidth * pScreenInfo->dwHeight);

+  }

+  /* Create a clipper */

+  ddrval = (*g_fpDirectDrawCreateClipper) (0,

+					   &pScreenPriv->pddcPrimary,

+					   NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - Could not attach clipper: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  winDebug ("winAllocateFBShadowDDNL - Created a clipper\n");

+

+  /* Attach the clipper to our display window */

+  ddrval = IDirectDrawClipper_SetHWnd (pScreenPriv->pddcPrimary,

+				       0,

+				       pScreenPriv->hwndScreen);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - Clipper not attached "

+	      "to window: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  winDebug ("winAllocateFBShadowDDNL - Attached clipper to window\n");

+

+  /* Create a DirectDraw object, store the address at lpdd */

+  ddrval = (*g_fpDirectDrawCreate) (NULL,

+				    (LPDIRECTDRAW*) &pScreenPriv->pdd,

+				    NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - Could not start "

+	      "DirectDraw: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  winDebug ("winAllocateFBShadowDDNL - Created and initialized DD\n");

+

+  /* Get a DirectDraw4 interface pointer */

+  ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,

+				       &IID_IDirectDraw4,

+				       (LPVOID*) &pScreenPriv->pdd4);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - Failed DD4 query: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  /* Are we full screen? */

+  if (pScreenInfo->fFullScreen)

+    {

+      DDSURFACEDESC2	ddsdCurrent;

+      DWORD		dwRefreshRateCurrent = 0;

+      HDC		hdc = NULL;

+

+      /* Set the cooperative level to full screen */

+      ddrval = IDirectDraw4_SetCooperativeLevel (pScreenPriv->pdd4,

+						 pScreenPriv->hwndScreen,

+						 DDSCL_EXCLUSIVE

+						 | DDSCL_FULLSCREEN);

+      if (FAILED (ddrval))

+	{

+	  ErrorF ("winAllocateFBShadowDDNL - Could not set "

+		  "cooperative level: %08x\n",

+		  (unsigned int) ddrval);

+	  return FALSE;

+	}

+

+      /*

+       * We only need to get the current refresh rate for comparison

+       * if a refresh rate has been passed on the command line.

+       */

+      if (pScreenInfo->dwRefreshRate != 0)

+	{

+	  ZeroMemory (&ddsdCurrent, sizeof (ddsdCurrent));

+	  ddsdCurrent.dwSize = sizeof (ddsdCurrent);

+

+	  /* Get information about current display settings */

+	  ddrval = IDirectDraw4_GetDisplayMode (pScreenPriv->pdd4,

+						&ddsdCurrent);

+	  if (FAILED (ddrval))

+	    {

+	      ErrorF ("winAllocateFBShadowDDNL - Could not get current "

+		      "refresh rate: %08x.  Continuing.\n",

+		      (unsigned int) ddrval);

+	      dwRefreshRateCurrent = 0;

+	    }

+	  else

+	    {

+	      /* Grab the current refresh rate */

+	      dwRefreshRateCurrent = ddsdCurrent.u2.dwRefreshRate;

+	    }

+	}

+

+      /* Clean up the refresh rate */

+      if (dwRefreshRateCurrent == pScreenInfo->dwRefreshRate)

+	{

+	  /*

+	   * Refresh rate is non-specified or equal to current.

+	   */

+	  pScreenInfo->dwRefreshRate = 0;

+	}

+

+      /* Grab a device context for the screen */

+      hdc = GetDC (NULL);

+      if (hdc == NULL)

+	{

+	  ErrorF ("winAllocateFBShadowDDNL - GetDC () failed\n");

+	  return FALSE;

+	}

+

+      /* Only change the video mode when different than current mode */

+      if (!pScreenInfo->fMultipleMonitors

+	  && (pScreenInfo->dwWidth != GetSystemMetrics (SM_CXSCREEN)

+	      || pScreenInfo->dwHeight != GetSystemMetrics (SM_CYSCREEN)

+	      || pScreenInfo->dwBPP != GetDeviceCaps (hdc, BITSPIXEL)

+	      || pScreenInfo->dwRefreshRate != 0))

+	{

+	  winDebug ("winAllocateFBShadowDDNL - Changing video mode\n");

+

+	  /* Change the video mode to the mode requested, and use the driver default refresh rate on failure */

+	  ddrval = IDirectDraw4_SetDisplayMode (pScreenPriv->pdd4,

+						pScreenInfo->dwWidth,

+						pScreenInfo->dwHeight,

+						pScreenInfo->dwBPP,

+						pScreenInfo->dwRefreshRate,

+						0);	       

+	  if (FAILED (ddrval))

+	    {

+	      ErrorF ("winAllocateFBShadowDDNL - Could not set "

+		      "full screen display mode: %08x\n",

+		      (unsigned int) ddrval);

+	      ErrorF ("winAllocateFBShadowDDNL - Using default driver refresh rate\n");

+	      ddrval = IDirectDraw4_SetDisplayMode (pScreenPriv->pdd4,

+						    pScreenInfo->dwWidth,

+						    pScreenInfo->dwHeight,

+						    pScreenInfo->dwBPP,

+						    0,

+						    0);

+	      if (FAILED(ddrval))

+		{

+			ErrorF ("winAllocateFBShadowDDNL - Could not set default refresh rate "

+				"full screen display mode: %08x\n",

+				(unsigned int) ddrval);

+			return FALSE;

+		}

+	    }

+	}

+      else

+	{

+	  winDebug ("winAllocateFBShadowDDNL - Not changing video mode\n");

+	}

+

+      /* Release our DC */

+      ReleaseDC (NULL, hdc);

+      hdc = NULL;

+    }

+  else

+    {

+      /* Set the cooperative level for windowed mode */

+      ddrval = IDirectDraw4_SetCooperativeLevel (pScreenPriv->pdd4,

+						 pScreenPriv->hwndScreen,

+						 DDSCL_NORMAL);

+      if (FAILED (ddrval))

+	{

+	  ErrorF ("winAllocateFBShadowDDNL - Could not set "

+		  "cooperative level: %08x\n",

+		  (unsigned int) ddrval);

+	  return FALSE;

+	}

+    }

+

+  /* Create the primary surface */

+  if (!winCreatePrimarySurfaceShadowDDNL (pScreen))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - winCreatePrimarySurfaceShadowDDNL "

+	      "failed\n");

+      return FALSE;

+    }

+

+  /* Get primary surface's pixel format */

+  ZeroMemory (&ddpfPrimary, sizeof (ddpfPrimary));

+  ddpfPrimary.dwSize = sizeof (ddpfPrimary);

+  ddrval = IDirectDrawSurface4_GetPixelFormat (pScreenPriv->pddsPrimary4,

+					       &ddpfPrimary);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - Could not get primary "

+	      "pixformat: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  winDebug ("winAllocateFBShadowDDNL - Primary masks: %08x %08x %08x "

+	  "dwRGBBitCount: %d\n",

+	  ddpfPrimary.u2.dwRBitMask,

+	  ddpfPrimary.u3.dwGBitMask,

+	  ddpfPrimary.u4.dwBBitMask,

+	  ddpfPrimary.u1.dwRGBBitCount);

+

+  /* Describe the shadow surface to be created */

+  /*

+   * NOTE: Do not use a DDSCAPS_VIDEOMEMORY surface,

+   * as drawing, locking, and unlocking take forever

+   * with video memory surfaces.  In addition,

+   * video memory is a somewhat scarce resource,

+   * so you shouldn't be allocating video memory when

+   * you have the option of using system memory instead.

+   */

+  ZeroMemory (&ddsdShadow, sizeof (ddsdShadow));

+  ddsdShadow.dwSize = sizeof (ddsdShadow);

+  ddsdShadow.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH

+    | DDSD_LPSURFACE | DDSD_PITCH | DDSD_PIXELFORMAT;

+  ddsdShadow.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;

+  ddsdShadow.dwHeight = pScreenInfo->dwHeight;

+  ddsdShadow.dwWidth = pScreenInfo->dwWidth;

+  ddsdShadow.u1.lPitch = pScreenInfo->dwPaddedWidth;

+  ddsdShadow.lpSurface = lpSurface;

+  ddsdShadow.u4.ddpfPixelFormat = ddpfPrimary;

+  

+  winDebug ("winAllocateFBShadowDDNL - lPitch: %d\n",

+	  (int) pScreenInfo->dwPaddedWidth);

+

+  /* Create the shadow surface */

+  ddrval = IDirectDraw4_CreateSurface (pScreenPriv->pdd4,

+				       &ddsdShadow,

+				       &pScreenPriv->pddsShadow4,

+				       NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDDNL - Could not create shadow "

+	      "surface: %08x\n", (unsigned int) ddrval);

+      return FALSE;

+    }

+  

+  winDebug ("winAllocateFBShadowDDNL - Created shadow pitch: %d\n",

+	  (int) ddsdShadow.u1.lPitch);

+

+  /* Grab the pitch from the surface desc */

+  pScreenInfo->dwStride = (ddsdShadow.u1.lPitch * 8)

+    / pScreenInfo->dwBPP;

+

+  winDebug ("winAllocateFBShadowDDNL - Created shadow stride: %d\n",

+	  (int) pScreenInfo->dwStride);

+

+  /* Save the pointer to our surface memory */

+  pScreenInfo->pfb = lpSurface;

+  

+  /* Grab the masks from the surface description */

+  pScreenPriv->dwRedMask = ddsdShadow.u4.ddpfPixelFormat.u2.dwRBitMask;

+  pScreenPriv->dwGreenMask = ddsdShadow.u4.ddpfPixelFormat.u3.dwGBitMask;

+  pScreenPriv->dwBlueMask = ddsdShadow.u4.ddpfPixelFormat.u4.dwBBitMask;

+

+  winDebug ("winAllocateFBShadowDDNL - Returning\n");

+

+  return TRUE;

+}

+

+static void

+winFreeFBShadowDDNL(ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;

+

+  /* Free the shadow surface, if there is one */

+  if (pScreenPriv->pddsShadow4)

+    {

+      IDirectDrawSurface4_Release (pScreenPriv->pddsShadow4);

+      free (pScreenInfo->pfb);

+      pScreenInfo->pfb = NULL;

+      pScreenPriv->pddsShadow4 = NULL;

+    }

+

+  /* Detach the clipper from the primary surface and release the primary surface, if there is one */

+  winReleasePrimarySurfaceShadowDDNL(pScreen);

+

+  ReleaseDDNL(pScreenPriv);

+

+  /* Invalidate the ScreenInfo's fb pointer */

+  pScreenInfo->pfb = NULL;

+}

+

+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

+/*

+ * Create a DirectDraw surface for the new multi-window window

+ */

+

+static

+Bool

+winFinishCreateWindowsWindowDDNL (WindowPtr pWin)

+{

+  winWindowPriv(pWin);

+  winPrivScreenPtr	pScreenPriv = pWinPriv->pScreenPriv;

+  HRESULT		ddrval = DD_OK;

+  DDSURFACEDESC2	ddsd;

+  int			iWidth, iHeight;

+  int			iX, iY;

+

+  winDebug ("winFinishCreateWindowsWindowDDNL!\n\n");

+

+  iX = pWin->drawable.x + GetSystemMetrics (SM_XVIRTUALSCREEN);

+  iY = pWin->drawable.y + GetSystemMetrics (SM_YVIRTUALSCREEN);

+  

+  iWidth = pWin->drawable.width;

+  iHeight = pWin->drawable.height;

+

+  /* Describe the primary surface */

+  ZeroMemory (&ddsd, sizeof (ddsd));

+  ddsd.dwSize = sizeof (ddsd);

+  ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;

+  ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

+  ddsd.dwHeight = iHeight;

+  ddsd.dwWidth = iWidth;

+

+  /* Create the primary surface */

+  ddrval = IDirectDraw4_CreateSurface (pScreenPriv->pdd4,

+				       &ddsd,

+				       &pWinPriv->pddsPrimary4,

+				       NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winFinishCreateWindowsWindowDDNL - Could not create primary "

+	      "surface: %08x\n",

+	      (unsigned int)ddrval);

+      return FALSE;

+    }

+  return TRUE;

+}

+#endif

+

+

+/*

+ * Transfer the damaged regions of the shadow framebuffer to the display.

+ */

+

+static void

+winShadowUpdateDDNL (ScreenPtr pScreen, 

+		     shadowBufPtr pBuf)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RegionPtr		damage = shadowDamage(pBuf);

+  RECT			rcDest, rcSrc;

+  POINT			ptOrigin;

+  DWORD			dwBox = RegionNumRects (damage);

+  BoxPtr		pBox = RegionRects (damage);

+  HRGN			hrgnTemp = NULL, hrgnCombined = NULL;

+

+  /*

+   * Return immediately if the app is not active

+   * and we are fullscreen, or if we have a bad display depth

+   */

+  if ((!pScreenPriv->fActive && pScreenInfo->fFullScreen)

+      || pScreenPriv->fBadDepth) return;

+

+  /* Return immediately if we didn't get needed surfaces */

+  if (!pScreenPriv->pddsPrimary4 || !pScreenPriv->pddsShadow4)

+    return;

+

+  /* Get the origin of the window in the screen coords */

+  ptOrigin.x = pScreenInfo->dwXOffset;

+  ptOrigin.y = pScreenInfo->dwYOffset;

+  MapWindowPoints (pScreenPriv->hwndScreen,

+		   HWND_DESKTOP,

+		   (LPPOINT)&ptOrigin, 1);

+

+  /*

+   * Handle small regions with multiple blits,

+   * handle large regions by creating a clipping region and 

+   * doing a single blit constrained to that clipping region.

+   */

+  if (pScreenInfo->dwClipUpdatesNBoxes == 0

+      || dwBox < pScreenInfo->dwClipUpdatesNBoxes)

+    {

+      /* Loop through all boxes in the damaged region */

+      while (dwBox--)

+	{

+	  /* Assign damage box to source rectangle */

+	  rcSrc.left = pBox->x1;

+	  rcSrc.top = pBox->y1;

+	  rcSrc.right = pBox->x2;

+	  rcSrc.bottom = pBox->y2;

+	  

+	  /* Calculate destination rectangle */

+	  rcDest.left = ptOrigin.x + rcSrc.left;

+	  rcDest.top = ptOrigin.y + rcSrc.top;

+	  rcDest.right = ptOrigin.x + rcSrc.right;

+	  rcDest.bottom = ptOrigin.y + rcSrc.bottom;

+	  

+	  /* Blit the damaged areas */

+	  if (pScreenPriv->pddsPrimary4)

+	    myIDirectDrawSurface4_Blt (pScreen,

+				    &rcDest,

+				    &rcSrc);

+	  

+	  /* Get a pointer to the next box */

+	  ++pBox;

+	}

+    }

+  else

+    {

+      BoxPtr		pBoxExtents = RegionExtents(damage);

+

+      /* Compute a GDI region from the damaged region */

+      hrgnCombined = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);

+      dwBox--;

+      pBox++;

+      while (dwBox--)

+	{

+	  hrgnTemp = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);

+	  CombineRgn (hrgnCombined, hrgnCombined, hrgnTemp, RGN_OR);

+	  DeleteObject (hrgnTemp);

+	  pBox++;

+	}

+

+      /* Install the GDI region as a clipping region */

+      SelectClipRgn (pScreenPriv->hdcScreen, hrgnCombined);

+      DeleteObject (hrgnCombined);

+      hrgnCombined = NULL;

+

+      winDebug ("winShadowUpdateDDNL - be x1 %d y1 %d x2 %d y2 %d\n",

+	      pBoxExtents->x1, pBoxExtents->y1,

+	      pBoxExtents->x2, pBoxExtents->y2);

+

+      /* Calculating a bounding box for the source is easy */

+      rcSrc.left = pBoxExtents->x1;

+      rcSrc.top = pBoxExtents->y1;

+      rcSrc.right = pBoxExtents->x2;

+      rcSrc.bottom = pBoxExtents->y2;

+

+      /* Calculating a bounding box for the destination is trickier */

+      rcDest.left = ptOrigin.x + rcSrc.left;

+      rcDest.top = ptOrigin.y + rcSrc.top;

+      rcDest.right = ptOrigin.x + rcSrc.right;

+      rcDest.bottom = ptOrigin.y + rcSrc.bottom;

+

+      /* Our Blt should be clipped to the invalidated region */

+      myIDirectDrawSurface4_Blt (pScreen, &rcDest, &rcSrc);

+

+      /* Reset the clip region */

+      SelectClipRgn (pScreenPriv->hdcScreen, NULL);

+    }

+}

+

+static Bool

+winInitScreenShadowDDNL(ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+

+  /* Get a device context for the screen  */

+  pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);

+

+  return winAllocateFBShadowDDNL(pScreen);

+}

+

+/*

+ * Call the wrapped CloseScreen function.

+ *

+ * Free our resources and private structures.

+ */

+

+static Bool

+winCloseScreenShadowDDNL (int nIndex, ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  Bool			fReturn;

+

+  winDebug ("winCloseScreenShadowDDNL - Freeing screen resources\n");

+

+  /* Flag that the screen is closed */

+  pScreenPriv->fClosed = TRUE;

+  pScreenPriv->fActive = FALSE;

+

+  /* Call the wrapped CloseScreen procedure */

+  WIN_UNWRAP(CloseScreen);

+  if (pScreen->CloseScreen)

+    fReturn = (*pScreen->CloseScreen) (nIndex, pScreen);

+

+  winFreeFBShadowDDNL(pScreen);

+

+  /* Free the screen DC */

+  ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);

+

+  /* Delete the window property */

+  RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);

+

+  /* Delete tray icon, if we have one */

+  if (!pScreenInfo->fNoTrayIcon)

+    winDeleteNotifyIcon (pScreenPriv);

+

+  /* Free the exit confirmation dialog box, if it exists */

+  if (g_hDlgExit != NULL)

+    {

+      DestroyWindow (g_hDlgExit);

+      g_hDlgExit = NULL;

+    }

+

+  /* Kill our window */

+  if (pScreenPriv->hwndScreen)

+    {

+      DestroyWindow (pScreenPriv->hwndScreen);

+      pScreenPriv->hwndScreen = NULL;

+    }

+

+#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)

+  /* Destroy the thread startup mutex */

+  pthread_mutex_destroy (&pScreenPriv->pmServerStarted);

+#endif

+

+  /* Kill our screeninfo's pointer to the screen */

+  pScreenInfo->pScreen = NULL;

+

+  /* Free the screen privates for this screen */

+  free ((pointer) pScreenPriv);

+

+  return fReturn;

+}

+

+

+/*

+ * Tell mi what sort of visuals we need.

+ *

+ * Generally we only need one visual, as our screen can only

+ * handle one format at a time, I believe.  You may want

+ * to verify that last sentence.

+ */

+

+static Bool

+winInitVisualsShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  DWORD			dwRedBits, dwGreenBits, dwBlueBits;

+

+  /* Count the number of ones in each color mask */

+  dwRedBits = winCountBits (pScreenPriv->dwRedMask);

+  dwGreenBits = winCountBits (pScreenPriv->dwGreenMask);

+  dwBlueBits = winCountBits (pScreenPriv->dwBlueMask);

+  

+  /* Store the maximum number of ones in a color mask as the bitsPerRGB */

+  if (dwRedBits == 0 || dwGreenBits == 0 || dwBlueBits == 0)

+    pScreenPriv->dwBitsPerRGB = 8;

+  else if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)

+    pScreenPriv->dwBitsPerRGB = dwRedBits;

+  else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)

+    pScreenPriv->dwBitsPerRGB = dwGreenBits;

+  else

+    pScreenPriv->dwBitsPerRGB = dwBlueBits;

+

+  winDebug ("winInitVisualsShadowDDNL - Masks %08x %08x %08x BPRGB %d d %d "

+	  "bpp %d\n",

+	  (unsigned int) pScreenPriv->dwRedMask,

+	  (unsigned int) pScreenPriv->dwGreenMask,

+	  (unsigned int) pScreenPriv->dwBlueMask,

+	  (int) pScreenPriv->dwBitsPerRGB,

+	  (int) pScreenInfo->dwDepth,

+	  (int) pScreenInfo->dwBPP);

+

+  /* Create a single visual according to the Windows screen depth */

+  switch (pScreenInfo->dwDepth)

+    {

+    case 24:

+    case 16:

+    case 15:

+      /* Setup the real visual */

+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     TrueColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     -1,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "

+		  "failed for TrueColor\n");

+	  return FALSE;

+	}

+

+#ifdef XWIN_EMULATEPSEUDO

+      if (!pScreenInfo->fEmulatePseudo)

+	break;

+

+      /* Setup a pseudocolor visual */

+      if (!miSetVisualTypesAndMasks (8,

+				     PseudoColorMask,

+				     8,

+				     -1,

+				     0,

+				     0,

+				     0))

+	{

+	  ErrorF ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "

+		  "failed for PseudoColor\n");

+	  return FALSE;

+	}

+#endif

+      break;

+

+    case 8:

+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     pScreenInfo->fFullScreen 

+				     ? PseudoColorMask : StaticColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     pScreenInfo->fFullScreen 

+				     ? PseudoColor : StaticColor,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "

+		  "failed\n");

+	  return FALSE;

+	}

+      break;

+

+    default:

+      ErrorF ("winInitVisualsShadowDDNL - Unknown screen depth\n");

+      return FALSE;

+    }

+

+  winDebug ("winInitVisualsShadowDDNL - Returning\n");

+

+  return TRUE;

+}

+

+

+/*

+ * Adjust the user proposed video mode

+ */

+

+static Bool

+winAdjustVideoModeShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  HDC			hdc = NULL;

+  DWORD			dwBPP;

+

+  /* We're in serious trouble if we can't get a DC */

+  hdc = GetDC (NULL);

+  if (hdc == NULL)

+    {

+      ErrorF ("winAdjustVideoModeShadowDDNL - GetDC () failed\n");

+      return FALSE;

+    }

+

+  /* Query GDI for current display depth */

+  dwBPP = GetDeviceCaps (hdc, BITSPIXEL);

+

+  /* DirectDraw can only change the depth in fullscreen mode */

+  if (!(pScreenInfo->fFullScreen &&

+        (pScreenInfo->dwBPP != WIN_DEFAULT_BPP)))

+    {

+      /* Otherwise, We'll use GDI's depth */

+      pScreenInfo->dwBPP = dwBPP;

+    }

+

+  /* Release our DC */

+  ReleaseDC (NULL, hdc);

+

+  return TRUE;

+}

+

+

+/*

+ * Blt exposed regions to the screen

+ */

+

+static Bool

+winBltExposedRegionsShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RECT			rcSrc, rcDest;

+  POINT			ptOrigin;

+  HDC			hdcUpdate;

+  PAINTSTRUCT		ps;

+  HRESULT		ddrval = DD_OK;

+  Bool			fReturn = TRUE;

+  int			i;

+

+  /* Quite common case. The primary surface was lost (maybe because of depth

+   * change). Try to create a new primary surface. Bail out if this fails */

+  if (pScreenPriv->pddsPrimary4 == NULL && pScreenPriv->fRetryCreateSurface &&

+      !winCreatePrimarySurfaceShadowDDNL(pScreen))

+    {

+      Sleep(100);

+      return FALSE;

+    }

+  if (pScreenPriv->pddsPrimary4 == NULL)

+    return FALSE;  

+  

+  /* BeginPaint gives us an hdc that clips to the invalidated region */

+  hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);

+  if (hdcUpdate == NULL)

+    {

+      fReturn = FALSE;

+      ErrorF ("winBltExposedRegionsShadowDDNL - BeginPaint () returned "

+	      "a NULL device context handle.  Aborting blit attempt.\n");

+      goto winBltExposedRegionsShadowDDNL_Exit;

+    }

+

+  /* Get the origin of the window in the screen coords */

+  ptOrigin.x = pScreenInfo->dwXOffset;

+  ptOrigin.y = pScreenInfo->dwYOffset;

+

+  MapWindowPoints (pScreenPriv->hwndScreen,

+		   HWND_DESKTOP,

+		   (LPPOINT)&ptOrigin, 1);

+  rcDest.left = ptOrigin.x;

+  rcDest.right = ptOrigin.x + pScreenInfo->dwWidth;

+  rcDest.top = ptOrigin.y;

+  rcDest.bottom = ptOrigin.y + pScreenInfo->dwHeight;

+

+  /* Source can be entire shadow surface, as Blt should clip for us */

+  rcSrc.left = 0;

+  rcSrc.top = 0;

+  rcSrc.right = pScreenInfo->dwWidth;

+  rcSrc.bottom = pScreenInfo->dwHeight;

+

+      /* Our Blt should be clipped to the invalidated region */

+  ddrval = myIDirectDrawSurface4_Blt (pScreen, &rcDest, &rcSrc);

+  if (FAILED (ddrval))

+	{

+	  fReturn = FALSE;

+	}

+

+winBltExposedRegionsShadowDDNL_Exit:

+  /* EndPaint frees the DC */

+  if (hdcUpdate != NULL)

+    EndPaint (pScreenPriv->hwndScreen, &ps);

+  return fReturn;

+}

+

+

+/*

+ * Do any engine-specific application-activation processing

+ */

+

+static Bool

+winActivateAppShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+

+  /*

+   * Do we have a surface?

+   * Are we active?

+   * Are we full screen?

+   */

+  if (pScreenPriv != NULL

+      && pScreenPriv->pddsPrimary4 != NULL

+      && pScreenPriv->fActive)

+    {

+      /* Primary surface was lost, restore it */

+      IDirectDrawSurface4_Restore (pScreenPriv->pddsPrimary4);

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Reblit the shadow framebuffer to the screen.

+ */

+

+static Bool

+winRedrawScreenShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RECT			rcSrc, rcDest;

+  POINT			ptOrigin;

+

+  /* Get the origin of the window in the screen coords */

+  ptOrigin.x = pScreenInfo->dwXOffset;

+  ptOrigin.y = pScreenInfo->dwYOffset;

+  MapWindowPoints (pScreenPriv->hwndScreen,

+		   HWND_DESKTOP,

+		   (LPPOINT)&ptOrigin, 1);

+  rcDest.left = ptOrigin.x;

+  rcDest.right = ptOrigin.x + pScreenInfo->dwWidth;

+  rcDest.top = ptOrigin.y;

+  rcDest.bottom = ptOrigin.y + pScreenInfo->dwHeight;

+

+  /* Source can be entire shadow surface, as Blt should clip for us */

+  rcSrc.left = 0;

+  rcSrc.top = 0;

+  rcSrc.right = pScreenInfo->dwWidth;

+  rcSrc.bottom = pScreenInfo->dwHeight;

+

+  /* Redraw the whole window, to take account for the new colors */

+  myIDirectDrawSurface4_Blt (pScreen, &rcDest, &rcSrc);

+  return TRUE;

+}

+

+

+/*

+ * Realize the currently installed colormap

+ */

+

+static Bool

+winRealizeInstalledPaletteShadowDDNL (ScreenPtr pScreen)

+{

+  return TRUE;

+}

+

+

+/*

+ * Install the specified colormap

+ */

+

+static Bool

+winInstallColormapShadowDDNL (ColormapPtr pColormap)

+{

+  ScreenPtr		pScreen = pColormap->pScreen;

+  winScreenPriv(pScreen);

+  winCmapPriv(pColormap);

+  HRESULT		ddrval = DD_OK;

+

+  /* Install the DirectDraw palette on the primary surface */

+  ddrval = IDirectDrawSurface4_SetPalette (pScreenPriv->pddsPrimary4,

+					   pCmapPriv->lpDDPalette);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winInstallColormapShadowDDNL - Failed installing the "

+	      "DirectDraw palette.\n");

+      return FALSE;

+    }

+

+  /* Save a pointer to the newly installed colormap */

+  pScreenPriv->pcmapInstalled = pColormap;

+

+  return TRUE;

+}

+

+

+/*

+ * Store the specified colors in the specified colormap

+ */

+

+static Bool

+winStoreColorsShadowDDNL (ColormapPtr pColormap, 

+			  int ndef,

+			  xColorItem *pdefs)

+{

+  ScreenPtr		pScreen = pColormap->pScreen;

+  winScreenPriv(pScreen);

+  winCmapPriv(pColormap);

+  ColormapPtr		curpmap = pScreenPriv->pcmapInstalled;

+  HRESULT		ddrval = DD_OK;

+  

+  /* Put the X colormap entries into the Windows logical palette */

+  ddrval = IDirectDrawPalette_SetEntries (pCmapPriv->lpDDPalette,

+					  0,

+					  pdefs[0].pixel,

+					  ndef,

+					  pCmapPriv->peColors 

+					  + pdefs[0].pixel);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winStoreColorsShadowDDNL - SetEntries () failed: %08x\n", (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  /* Don't install the DirectDraw palette if the colormap is not installed */

+  if (pColormap != curpmap)

+    {

+      return TRUE;

+    }

+

+  if (!winInstallColormapShadowDDNL (pColormap))

+    {

+      ErrorF ("winStoreColorsShadowDDNL - Failed installing colormap\n");

+      return FALSE;

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Colormap initialization procedure

+ */

+

+static Bool

+winCreateColormapShadowDDNL (ColormapPtr pColormap)

+{

+  HRESULT		ddrval = DD_OK;

+  ScreenPtr		pScreen = pColormap->pScreen;

+  winScreenPriv(pScreen);

+  winCmapPriv(pColormap);

+  

+  /* Create a DirectDraw palette */

+  ddrval = IDirectDraw4_CreatePalette (pScreenPriv->pdd4,

+				       DDPCAPS_8BIT | DDPCAPS_ALLOW256,

+				       pCmapPriv->peColors,

+				       &pCmapPriv->lpDDPalette,

+				       NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winCreateColormapShadowDDNL - CreatePalette failed\n");

+      return FALSE;

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Colormap destruction procedure

+ */

+

+static Bool

+winDestroyColormapShadowDDNL (ColormapPtr pColormap)

+{

+  winScreenPriv(pColormap->pScreen);

+  winCmapPriv(pColormap);

+  HRESULT		ddrval = DD_OK;

+

+  /*

+   * Is colormap to be destroyed the default?

+   *

+   * Non-default colormaps should have had winUninstallColormap

+   * called on them before we get here.  The default colormap

+   * will not have had winUninstallColormap called on it.  Thus,

+   * we need to handle the default colormap in a special way.

+   */

+  if (pColormap->flags & IsDefault)

+    {

+      winDebug ("winDestroyColormapShadowDDNL - Destroying default colormap\n");

+      

+      /*

+       * FIXME: Walk the list of all screens, popping the default

+       * palette out of each screen device context.

+       */

+      

+      /* Pop the palette out of the primary surface */

+      ddrval = IDirectDrawSurface4_SetPalette (pScreenPriv->pddsPrimary4,

+					       NULL);

+      if (FAILED (ddrval))

+	{

+	  ErrorF ("winDestroyColormapShadowDDNL - Failed freeing the "

+		  "default colormap DirectDraw palette.\n");

+	  return FALSE;

+	}

+

+      /* Clear our private installed colormap pointer */

+      pScreenPriv->pcmapInstalled = NULL;

+    }

+  

+  /* Release the palette */

+  IDirectDrawPalette_Release (pCmapPriv->lpDDPalette);

+ 

+  /* Invalidate the colormap privates */

+  pCmapPriv->lpDDPalette = NULL;

+

+  return TRUE;

+}

+

+

+/*

+ * Set pointers to our engine specific functions

+ */

+

+Bool

+winSetEngineFunctionsShadowDDNL (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  

+  /* Set our pointers */

+  pScreenPriv->pwinAllocateFB = winAllocateFBShadowDDNL;

+  pScreenPriv->pwinFreeFB = winFreeFBShadowDDNL;

+  pScreenPriv->pwinShadowUpdate = winShadowUpdateDDNL;

+  pScreenPriv->pwinInitScreen = winInitScreenShadowDDNL;

+  pScreenPriv->pwinCloseScreen = winCloseScreenShadowDDNL;

+  pScreenPriv->pwinInitVisuals = winInitVisualsShadowDDNL;

+  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowDDNL;

+  if (pScreenInfo->fFullScreen)

+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;

+  else

+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;

+  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;

+  pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowDDNL;

+  pScreenPriv->pwinActivateApp = winActivateAppShadowDDNL;

+  pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowDDNL;

+  pScreenPriv->pwinRealizeInstalledPalette

+    = winRealizeInstalledPaletteShadowDDNL;

+  pScreenPriv->pwinInstallColormap = winInstallColormapShadowDDNL;

+  pScreenPriv->pwinStoreColors = winStoreColorsShadowDDNL;

+  pScreenPriv->pwinCreateColormap = winCreateColormapShadowDDNL;

+  pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowDDNL;

+  pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;

+  pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDDNL;

+  pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDDNL;

+#ifdef XWIN_MULTIWINDOW

+  pScreenPriv->pwinFinishCreateWindowsWindow

+    = winFinishCreateWindowsWindowDDNL;

+#endif

+

+  return TRUE;

+}