xserver git update 11/6/2010

1 files changed, 1455 insertions, 1455 deletions

diff --git a/xorg-server/hw/xwin/winshaddd.c b/xorg-server/hw/xwin/winshaddd.c
index 85dc10f53..89122b177 100644
--- a/xorg-server/hw/xwin/winshaddd.c
+++ b/xorg-server/hw/xwin/winshaddd.c
@@ -1,1455 +1,1455 @@
-/*
- *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"
-
-
-/*
- * External symbols
- */
-
-extern HWND			g_hDlgExit;
-extern const char *g_pszLogFile;
-
-/*
- * FIXME: Headers are broken, DEFINE_GUID doesn't work correctly,
- * so we have to redefine it here.
- */
-#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 */
-
-
-/*
- * FIXME: Headers are broken, IID_IDirectDraw4 has to be defined
- * here manually.  Should be handled by ddraw.h
- */
-#ifndef IID_IDirectDraw2
-DEFINE_GUID( IID_IDirectDraw2,0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
-#endif /* IID_IDirectDraw2 */
-
-
-/*
- * Local prototypes
- */
-
-static Bool
-winAllocateFBShadowDD (ScreenPtr pScreen);
-
-static void
-winShadowUpdateDD (ScreenPtr pScreen, 
-		   shadowBufPtr pBuf);
-
-static Bool
-winCloseScreenShadowDD (int nIndex, ScreenPtr pScreen);
-
-static Bool
-winInitVisualsShadowDD (ScreenPtr pScreen);
-
-static Bool
-winAdjustVideoModeShadowDD (ScreenPtr pScreen);
-
-static Bool
-winBltExposedRegionsShadowDD (ScreenPtr pScreen);
-
-static Bool
-winActivateAppShadowDD (ScreenPtr pScreen);
-
-static Bool
-winRedrawScreenShadowDD (ScreenPtr pScreen);
-
-static Bool
-winRealizeInstalledPaletteShadowDD (ScreenPtr pScreen);
-
-static Bool
-winInstallColormapShadowDD (ColormapPtr pColormap);
-
-static Bool
-winStoreColorsShadowDD (ColormapPtr pmap, 
-			int ndef,
-			xColorItem *pdefs);
-
-static Bool
-winCreateColormapShadowDD (ColormapPtr pColormap);
-
-static Bool
-winDestroyColormapShadowDD (ColormapPtr pColormap);
-
-static Bool
-winCreatePrimarySurfaceShadowDD (ScreenPtr pScreen);
-
-static Bool
-winReleasePrimarySurfaceShadowDD (ScreenPtr pScreen);
-
-
-/*
- * Create the primary surface and attach the clipper.
- * Used for both the initial surface creation and during
- * WM_DISPLAYCHANGE messages.
- */
-
-static Bool
-winCreatePrimarySurfaceShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  HRESULT		ddrval = DD_OK;
-  DDSURFACEDESC		ddsd;
-
-  /* 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 = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,
-				       &ddsd,
-				       &pScreenPriv->pddsPrimary,
-				       NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winCreatePrimarySurfaceShadowDD - Could not create primary "
-	      "surface: %08x\n", (unsigned int) ddrval);
-      return FALSE;
-    }
-  
-#if CYGDEBUG
-  winDebug ("winCreatePrimarySurfaceShadowDD - Created primary surface\n");
-#endif
-
-  /*
-   * Attach a clipper to the primary surface that will clip our blits to our
-   * display window.
-   */
-  ddrval = IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,
-					   pScreenPriv->pddcPrimary);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winCreatePrimarySurfaceShadowDD - Primary attach clipper "
-	      "failed: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-#if CYGDEBUG
-  winDebug ("winCreatePrimarySurfaceShadowDD - Attached clipper to "
-	  "primary surface\n");
-#endif
-
-  /* Everything was correct */
-  return TRUE;
-}
-
-
-/*
- * Detach the clipper and release the primary surface.
- * Called from WM_DISPLAYCHANGE.
- */
-
-static Bool
-winReleasePrimarySurfaceShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-
-  ErrorF ("winReleasePrimarySurfaceShadowDD - Hello\n");
-
-  /* Release the primary surface and clipper, if they exist */
-  if (pScreenPriv->pddsPrimary)
-    {
-      /*
-       * Detach the clipper from the primary surface.
-       * NOTE: We do this explicity for clarity.  The Clipper is not released.
-       */
-      IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,
-				      NULL);
-
-      ErrorF ("winReleasePrimarySurfaceShadowDD - Detached clipper\n");
-
-      /* Release the primary surface */
-      IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);
-      pScreenPriv->pddsPrimary = NULL;
-    }
-
-  ErrorF ("winReleasePrimarySurfaceShadowDD - 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.
- */
-
-static Bool
-winAllocateFBShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;  
-  HRESULT		ddrval = DD_OK;
-  DDSURFACEDESC		ddsd;
-  DDSURFACEDESC		*pddsdShadow = NULL;
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD\n");
-#endif
-
-  /* Create a clipper */
-  ddrval = (*g_fpDirectDrawCreateClipper) (0,
-					   &pScreenPriv->pddcPrimary,
-					   NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDD - Could not create clipper: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD - Created a clipper\n");
-#endif
-
-  /* Get a device context for the screen  */
-  pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
-
-  /* Attach the clipper to our display window */
-  ddrval = IDirectDrawClipper_SetHWnd (pScreenPriv->pddcPrimary,
-				       0,
-				       pScreenPriv->hwndScreen);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDD - Clipper not attached to "
-	      "window: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD - Attached clipper to window\n");
-#endif
-
-  /* Create a DirectDraw object, store the address at lpdd */
-  ddrval = (*g_fpDirectDrawCreate) (NULL, &pScreenPriv->pdd, NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDD - Could not start DirectDraw: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD () - Created and initialized DD\n");
-#endif
-
-  /* Get a DirectDraw2 interface pointer */
-  ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,
-				       &IID_IDirectDraw2,
-				       (LPVOID*) &pScreenPriv->pdd2);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDD - Failed DD2 query: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-  /* Are we full screen? */
-  if (pScreenInfo->fFullScreen)
-    {
-      DDSURFACEDESC	ddsdCurrent;
-      DWORD		dwRefreshRateCurrent = 0;
-      HDC		hdc = NULL;
-
-      /* Set the cooperative level to full screen */
-      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
-						 pScreenPriv->hwndScreen,
-						 DDSCL_EXCLUSIVE
-						 | DDSCL_FULLSCREEN);
-      if (FAILED (ddrval))
-	{
-	  ErrorF ("winAllocateFBShadowDD - 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 = IDirectDraw2_GetDisplayMode (pScreenPriv->pdd2,
-						&ddsdCurrent);
-	  if (FAILED (ddrval))
-	    {
-	      ErrorF ("winAllocateFBShadowDD - 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 ("winAllocateFBShadowDD - 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))
-	{
-	  ErrorF ("winAllocateFBShadowDD - Changing video mode\n");
-
-	  /* Change the video mode to the mode requested, and use the driver default refresh rate on failure */
-	  ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,
-						pScreenInfo->dwWidth,
-						pScreenInfo->dwHeight,
-						pScreenInfo->dwBPP,
-						pScreenInfo->dwRefreshRate,
-						0);
-	  if (FAILED (ddrval))
-	    {
-	      ErrorF ("winAllocateFBShadowDD - Could not set "\
-		      "full screen display mode: %08x\n",
-		      (unsigned int) ddrval);
-	      ErrorF ("winAllocateFBShadowDD - Using default driver refresh rate\n");
-	      ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,
-						    pScreenInfo->dwWidth,
-						    pScreenInfo->dwHeight,
-						    pScreenInfo->dwBPP,
-						    0,
-						    0);
-	      if (FAILED(ddrval))
-		{
-			ErrorF ("winAllocateFBShadowDD - Could not set default refresh rate "
-				"full screen display mode: %08x\n",
-				(unsigned int) ddrval);
-			return FALSE;
-		}
-	    }
-	}
-      else
-	{
-	  ErrorF ("winAllocateFBShadowDD - Not changing video mode\n");
-	}
-
-      /* Release our DC */
-      ReleaseDC (NULL, hdc);
-      hdc = NULL;
-    }
-  else
-    {
-      /* Set the cooperative level for windowed mode */
-      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
-						 pScreenPriv->hwndScreen,
-						 DDSCL_NORMAL);
-      if (FAILED (ddrval))
-	{
-	  ErrorF ("winAllocateFBShadowDD - Could not set "\
-		  "cooperative level: %08x\n",
-		  (unsigned int) ddrval);
-	  return FALSE;
-	}
-    }
-
-  /* Create the primary surface */
-  if (!winCreatePrimarySurfaceShadowDD (pScreen))
-    {
-      ErrorF ("winAllocateFBShadowDD - winCreatePrimarySurfaceShadowDD "
-	      "failed\n");
-      return FALSE;
-    }
-
-  /* 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 (&ddsd, sizeof (ddsd));
-  ddsd.dwSize = sizeof (ddsd);
-  ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
-  ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
-  ddsd.dwHeight = pScreenInfo->dwHeight;
-  ddsd.dwWidth = pScreenInfo->dwWidth;
-
-  /* Create the shadow surface */
-  ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,
-				       &ddsd,
-				       &pScreenPriv->pddsShadow,
-				       NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDD - Could not create shadow "\
-	      "surface: %08x\n", (unsigned int) ddrval);
-      return FALSE;
-    }
-  
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD - Created shadow\n");
-#endif
-
-  /* Allocate a DD surface description for our screen privates */
-  pddsdShadow = pScreenPriv->pddsdShadow = malloc (sizeof (DDSURFACEDESC));
-  if (pddsdShadow == NULL)
-    {
-      ErrorF ("winAllocateFBShadowDD - Could not allocate surface "\
-	      "description memory\n");
-      return FALSE;
-    }
-  ZeroMemory (pddsdShadow, sizeof (*pddsdShadow));
-  pddsdShadow->dwSize = sizeof (*pddsdShadow);
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD - Locking shadow\n");
-#endif
-
-  /* Lock the shadow surface */
-  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
-				     NULL,
-				     pddsdShadow,
-				     DDLOCK_WAIT,
-				     NULL);
-  if (FAILED (ddrval) || pddsdShadow->lpSurface == NULL)
-    {
-      ErrorF ("winAllocateFBShadowDD - Could not lock shadow "\
-	      "surface: %08x\n", (unsigned int) ddrval);
-      return FALSE;
-    }
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD - Locked shadow\n");
-#endif
-
-  /* We don't know how to deal with anything other than RGB */
-  if (!(pddsdShadow->ddpfPixelFormat.dwFlags & DDPF_RGB))
-    {
-      ErrorF ("winAllocateFBShadowDD - Color format other than RGB\n");
-      return FALSE;
-    }
-
-  /* Grab the pitch from the surface desc */
-  pScreenInfo->dwStride = (pddsdShadow->u1.lPitch * 8)
-    / pScreenInfo->dwBPP;
-
-  /* Save the pointer to our surface memory */
-  pScreenInfo->pfb = pddsdShadow->lpSurface;
-  
-  /* Grab the color depth and masks from the surface description */
-  pScreenPriv->dwRedMask = pddsdShadow->ddpfPixelFormat.u2.dwRBitMask;
-  pScreenPriv->dwGreenMask = pddsdShadow->ddpfPixelFormat.u3.dwGBitMask;
-  pScreenPriv->dwBlueMask = pddsdShadow->ddpfPixelFormat.u4.dwBBitMask;
-
-#if CYGDEBUG
-  winDebug ("winAllocateFBShadowDD - Returning\n");
-#endif
-
-  return TRUE;
-}
-
-
-/*
- * Transfer the damaged regions of the shadow framebuffer to the display.
- */
-
-static void
-winShadowUpdateDD (ScreenPtr pScreen, 
-		   shadowBufPtr pBuf)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RegionPtr		damage = shadowDamage(pBuf);
-  HRESULT		ddrval = DD_OK;
-  RECT			rcDest, rcSrc;
-  POINT			ptOrigin;
-  DWORD			dwBox = REGION_NUM_RECTS (damage);
-  BoxPtr		pBox = REGION_RECTS (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;
-
-  /* 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);
-
-  /* Unlock the shadow surface, so we can blit */
-  ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winShadowUpdateDD - Unlock failed\n");
-      return;
-    }
-
-  /*
-   * 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 rectange */
-	  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 */
-	  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
-					    &rcDest,
-					    pScreenPriv->pddsShadow,
-					    &rcSrc,
-					    DDBLT_WAIT,
-					    NULL);
-	  
-	  /* Get a pointer to the next box */
-	  ++pBox;
-	}
-    }
-  else
-    {
-      BoxPtr		pBoxExtents = REGION_EXTENTS (pScreen, 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;
-
-      /* 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 */
-      ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
-					&rcDest,
-					pScreenPriv->pddsShadow,
-					&rcSrc,
-					DDBLT_WAIT,
-					NULL);
-
-      /* Reset the clip region */
-      SelectClipRgn (pScreenPriv->hdcScreen, NULL);
-    }
-
-  /* Relock the shadow surface */
-  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
-				     NULL,
-				     pScreenPriv->pddsdShadow,
-				     DDLOCK_WAIT,
-				     NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winShadowUpdateDD - Lock failed\n");
-      return;
-    }
-
-  /* Has our memory pointer changed? */
-  if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)
-    {
-      ErrorF ("winShadowUpdateDD - Memory location of the shadow "
-	      "surface has changed, trying to update the root window "
-	      "pixmap header to point to the new address.  If you get "
-	      "this message and "PROJECT_NAME" freezes or crashes "
-	      "after this message then send a problem report and your "
-	      "%s file to " BUILDERADDR "\n", g_pszLogFile);
-
-      /* Location of shadow framebuffer has changed */
-      pScreenInfo->pfb = pScreenPriv->pddsdShadow->lpSurface;
-      
-      /* Update the screen pixmap */
-      if (!(*pScreen->ModifyPixmapHeader)(pScreen->devPrivate,
-					  pScreen->width,
-					  pScreen->height,
-					  pScreen->rootDepth,
-					  BitsPerPixel (pScreen->rootDepth),
-					  PixmapBytePad (pScreenInfo->dwStride,
-							 pScreenInfo->dwBPP),
-					  pScreenInfo->pfb))
-	{
-	  ErrorF ("winShadowUpdateDD - Bits changed, could not "
-		  "notify fb.\n");
-	  return;
-	}
-    }
-}
-
-
-/*
- * Call the wrapped CloseScreen function.
- * 
- * Free our resources and private structures.
- */
-
-static Bool
-winCloseScreenShadowDD (int nIndex, ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  Bool			fReturn;
-  
-#if CYGDEBUG
-  winDebug ("winCloseScreenShadowDD - Freeing screen resources\n");
-#endif
-
-  /* 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);
-
-  /* Free the screen DC */
-  ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
-
-  /* Delete the window property */
-  RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
-
-  /* Free the shadow surface, if there is one */
-  if (pScreenPriv->pddsShadow)
-    {
-      IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);
-      IDirectDrawSurface2_Release (pScreenPriv->pddsShadow);
-      pScreenPriv->pddsShadow = NULL;
-    }
-
-  /* Detach the clipper from the primary surface and release the clipper. */
-  if (pScreenPriv->pddcPrimary)
-    {
-      /* Detach the clipper */
-      IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,
-				      NULL);
-
-      /* Release the clipper object */
-      IDirectDrawClipper_Release (pScreenPriv->pddcPrimary);
-      pScreenPriv->pddcPrimary = NULL;
-    }
-
-  /* Release the primary surface, if there is one */
-  if (pScreenPriv->pddsPrimary)
-    {
-      IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);
-      pScreenPriv->pddsPrimary = NULL;
-    }
-
-  /* Free the DirectDraw2 object, if there is one */
-  if (pScreenPriv->pdd2)
-    {
-      IDirectDraw2_RestoreDisplayMode (pScreenPriv->pdd2);
-      IDirectDraw2_Release (pScreenPriv->pdd2);
-      pScreenPriv->pdd2 = NULL;
-    }
-
-  /* Free the DirectDraw object, if there is one */
-  if (pScreenPriv->pdd)
-    {
-      IDirectDraw_Release (pScreenPriv->pdd);
-      pScreenPriv->pdd = NULL;
-    }
-
-  /* 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;
-
-  /* Invalidate the ScreenInfo's fb pointer */
-  pScreenInfo->pfb = 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
-winInitVisualsShadowDD (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;
-  
-  ErrorF ("winInitVisualsShadowDD - 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:
-#if defined(XFree86Server)
-      /* Create the real visual */
-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     TrueColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     TrueColor,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsShadowDD - 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 ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "
-		  "failed for PseudoColor\n");
-	  return FALSE;
-	}
-#endif
-#else /* XFree86Server */
-      /* Create the real visual */
-      if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     TrueColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "
-		  "failed for TrueColor\n");
-	  return FALSE;
-	}
-
-#ifdef XWIN_EMULATEPSEUDO
-      if (!pScreenInfo->fEmulatePseudo)
-	break;
-
-      /* Setup a pseudocolor visual */
-      if (!fbSetVisualTypesAndMasks (8,
-				     PseudoColorMask,
-				     8,
-				     0,
-				     0,
-				     0))
-	{
-	  ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "
-		  "failed for PseudoColor\n");
-	  return FALSE;
-	}
-#endif
-#endif /* XFree86Server */
-      break;
-
-    case 8:
-#if defined(XFree86Server)
-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     pScreenInfo->fFullScreen 
-				     ? PseudoColorMask : StaticColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     pScreenInfo->fFullScreen 
-				     ? PseudoColor : StaticColor,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "
-		  "failed\n");
-	  return FALSE;
-	}
-#else /* XFree86Server */
-      if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     pScreenInfo->fFullScreen 
-				     ? PseudoColorMask : StaticColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "
-		  "failed\n");
-	  return FALSE;
-	}
-#endif /* XFree86Server */
-      break;
-
-    default:
-      ErrorF ("winInitVisualsShadowDD - Unknown screen depth\n");
-      return FALSE;
-    }
-
-#if CYGDEBUG
-  winDebug ("winInitVisualsShadowDD - Returning\n");
-#endif
-
-  return TRUE;
-}
-
-
-/*
- * Adjust the user proposed video mode
- */
-
-static Bool
-winAdjustVideoModeShadowDD (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 ("winAdjustVideoModeShadowDD - 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->dwBPP == WIN_DEFAULT_BPP)
-    {
-      /* No -depth parameter passed, let the user know the depth being used */
-      ErrorF ("winAdjustVideoModeShadowDD - Using Windows display "
-	      "depth of %d bits per pixel\n", (int) dwBPP);
-
-      /* Use GDI's depth */
-      pScreenInfo->dwBPP = dwBPP;
-    }
-  else if (pScreenInfo->fFullScreen
-	   && pScreenInfo->dwBPP != dwBPP)
-    {
-      /* FullScreen, and GDI depth differs from -depth parameter */
-      ErrorF ("winAdjustVideoModeShadowDD - FullScreen, using command line "
-	      "bpp: %d\n", (int) pScreenInfo->dwBPP);
-    }
-  else if (dwBPP != pScreenInfo->dwBPP)
-    {
-      /* Windowed, and GDI depth differs from -depth parameter */
-      ErrorF ("winAdjustVideoModeShadowDD - Windowed, command line bpp: "
-	      "%d, using bpp: %d\n", (int) pScreenInfo->dwBPP, (int) dwBPP);
-
-      /* We'll use GDI's depth */
-      pScreenInfo->dwBPP = dwBPP;
-    }
-  
-  /* See if the shadow bitmap will be larger than the DIB size limit */
-  if (pScreenInfo->dwWidth * pScreenInfo->dwHeight * pScreenInfo->dwBPP
-      >= WIN_DIB_MAXIMUM_SIZE)
-    {
-      ErrorF ("winAdjustVideoModeShadowDD - Requested DirectDraw surface "
-	      "will be larger than %d MB.  The surface may fail to be "
-	      "allocated on Windows 95, 98, or Me, due to a %d MB limit in "
-	      "DIB size.  This limit does not apply to Windows NT/2000, and "
-	      "this message may be ignored on those platforms.\n",
-	      WIN_DIB_MAXIMUM_SIZE_MB, WIN_DIB_MAXIMUM_SIZE_MB);
-    }
-
-  /* Release our DC */
-  ReleaseDC (NULL, hdc);
-  return TRUE;
-}
-
-
-/*
- * Blt exposed regions to the screen
- */
-
-static Bool
-winBltExposedRegionsShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RECT			rcSrc, rcDest;
-  POINT			ptOrigin;
-  HDC			hdcUpdate = NULL;
-  PAINTSTRUCT		ps;
-  HRESULT		ddrval = DD_OK;
-  Bool			fReturn = TRUE;
-  Bool			fLocked = TRUE;
-  int			i;
-
-  /* BeginPaint gives us an hdc that clips to the invalidated region */
-  hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);
-  if (hdcUpdate == NULL)
-    {
-      ErrorF ("winBltExposedRegionsShadowDD - BeginPaint () returned "
-	      "a NULL device context handle.  Aborting blit attempt.\n");
-      return FALSE;
-    }
-  
-  /* Unlock the shadow surface, so we can blit */
-  ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);
-  if (FAILED (ddrval))
-    {
-      fReturn = FALSE;
-      goto winBltExposedRegionsShadowDD_Exit;
-    }
-  else
-    {
-      /* Flag that we have unlocked the shadow surface */
-      fLocked = FALSE;
-    }
-
-  /* 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 enter shadow surface, as Blt should clip */
-  rcSrc.left = 0;
-  rcSrc.top = 0;
-  rcSrc.right = pScreenInfo->dwWidth;
-  rcSrc.bottom = pScreenInfo->dwHeight;
-
-  /* Try to regain the primary surface and blit again if we've lost it */
-  for (i = 0; i <= WIN_REGAIN_SURFACE_RETRIES; ++i)
-    {
-      /* Our Blt should be clipped to the invalidated region */
-      ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
-					&rcDest,
-					pScreenPriv->pddsShadow,
-					&rcSrc,
-					DDBLT_WAIT,
-					NULL);
-      if (ddrval == DDERR_SURFACELOST)
-	{
-	  /* Surface was lost */
-	  ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Blt "
-		  "reported that the primary surface was lost, "
-		  "trying to restore, retry: %d\n", i + 1);
-
-	  /* Try to restore the surface, once */
-	  ddrval = IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
-	  ErrorF ("winBltExposedRegionsShadowDD - "
-		  "IDirectDrawSurface2_Restore 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", (unsigned int) ddrval);
-
-	  /* Loop around to try the blit one more time */
-	  continue;
-	}
-      else if (FAILED (ddrval))
-	{
-	  fReturn = FALSE;
-	  ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Blt "
-		  "failed, but surface not lost: %08x %d\n",
-		  (unsigned int) ddrval, (int) ddrval);
-	  goto winBltExposedRegionsShadowDD_Exit;
-	}
-      else
-	{
-	  /* Success, stop looping */
-	  break;
-	}
-    }
-
-  /* Relock the shadow surface */
-  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
-				     NULL,
-				     pScreenPriv->pddsdShadow,
-				     DDLOCK_WAIT,
-				     NULL);
-  if (FAILED (ddrval))
-    {
-      fReturn = FALSE;
-      ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Lock "
-	      "failed\n");
-      goto winBltExposedRegionsShadowDD_Exit;
-    }
-  else
-    {
-      /* Indicate that we have relocked the shadow surface */
-      fLocked = TRUE;
-    }
-
-  /* Has our memory pointer changed? */
-  if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)
-    winUpdateFBPointer (pScreen,
-			pScreenPriv->pddsdShadow->lpSurface);
-
- winBltExposedRegionsShadowDD_Exit:
-  /* EndPaint frees the DC */
-  if (hdcUpdate != NULL)
-    EndPaint (pScreenPriv->hwndScreen, &ps);
-
-  /*
-   * Relock the surface if it is not locked.  We don't care if locking fails,
-   * as it will cause the server to shutdown within a few more operations.
-   */
-  if (!fLocked)
-    {
-      IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
-				NULL,
-				pScreenPriv->pddsdShadow,
-				DDLOCK_WAIT,
-				NULL);
-
-      /* Has our memory pointer changed? */
-      if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)
-	winUpdateFBPointer (pScreen,
-			    pScreenPriv->pddsdShadow->lpSurface);
-      
-      fLocked = TRUE;
-    }
-  return fReturn;
-}
-
-
-/*
- * Do any engine-specific appliation-activation processing
- */
-
-static Bool
-winActivateAppShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-
-  /*
-   * Do we have a surface?
-   * Are we active?
-   * Are we fullscreen?
-   */
-  if (pScreenPriv != NULL
-      && pScreenPriv->pddsPrimary != NULL
-      && pScreenPriv->fActive)
-    {
-      /* Primary surface was lost, restore it */
-      IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Reblit the shadow framebuffer to the screen.
- */
-
-static Bool
-winRedrawScreenShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  HRESULT		ddrval = DD_OK;
-  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 */
-  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
-				    &rcDest,
-				    pScreenPriv->pddsShadow,
-				    &rcSrc,
-				    DDBLT_WAIT,
-				    NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winRedrawScreenShadowDD - IDirectDrawSurface_Blt () "
-	      "failed: %08x\n",
-	      (unsigned int) ddrval);
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Realize the currently installed colormap
- */
-
-static Bool
-winRealizeInstalledPaletteShadowDD (ScreenPtr pScreen)
-{
-  return TRUE;
-}
-
-
-/*
- * Install the specified colormap
- */
-
-static Bool
-winInstallColormapShadowDD (ColormapPtr pColormap)
-{
-  ScreenPtr		pScreen = pColormap->pScreen;
-  winScreenPriv(pScreen);
-  winCmapPriv(pColormap);
-  HRESULT		ddrval = DD_OK;
-
-  /* Install the DirectDraw palette on the primary surface */
-  ddrval = IDirectDrawSurface2_SetPalette (pScreenPriv->pddsPrimary,
-					   pCmapPriv->lpDDPalette);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winInstallColormapShadowDD - 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
-winStoreColorsShadowDD (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 ("winStoreColorsShadowDD - SetEntries () failed\n");
-      return FALSE;
-    }
-
-  /* Don't install the DirectDraw palette if the colormap is not installed */
-  if (pColormap != curpmap)
-    {
-      return TRUE;
-    }
-
-  if (!winInstallColormapShadowDD (pColormap))
-    {
-      ErrorF ("winStoreColorsShadowDD - Failed installing colormap\n");
-      return FALSE;
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Colormap initialization procedure
- */
-
-static Bool
-winCreateColormapShadowDD (ColormapPtr pColormap)
-{
-  HRESULT		ddrval = DD_OK;
-  ScreenPtr		pScreen = pColormap->pScreen;
-  winScreenPriv(pScreen);
-  winCmapPriv(pColormap);
-  
-  /* Create a DirectDraw palette */
-  ddrval = IDirectDraw2_CreatePalette (pScreenPriv->pdd,
-				       DDPCAPS_8BIT | DDPCAPS_ALLOW256,
-				       pCmapPriv->peColors,
-				       &pCmapPriv->lpDDPalette,
-				       NULL);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winCreateColormapShadowDD - CreatePalette failed\n");
-      return FALSE;
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Colormap destruction procedure
- */
-
-static Bool
-winDestroyColormapShadowDD (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)
-    {
-#if CYGDEBUG
-      winDebug ("winDestroyColormapShadowDD - Destroying default "
-	      "colormap\n");
-#endif
-      
-      /*
-       * 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 = IDirectDrawSurface2_SetPalette (pScreenPriv->pddsPrimary,
-					       NULL);
-      if (FAILED (ddrval))
-	{
-	  ErrorF ("winDestroyColormapShadowDD - 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 engine specific functions
- */
-
-Bool
-winSetEngineFunctionsShadowDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  
-  /* Set our pointers */
-  pScreenPriv->pwinAllocateFB = winAllocateFBShadowDD;
-  pScreenPriv->pwinShadowUpdate = winShadowUpdateDD;
-  pScreenPriv->pwinCloseScreen = winCloseScreenShadowDD;
-  pScreenPriv->pwinInitVisuals = winInitVisualsShadowDD;
-  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowDD;
-  if (pScreenInfo->fFullScreen)
-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
-  else
-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
-  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
-  pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowDD;
-  pScreenPriv->pwinActivateApp = winActivateAppShadowDD;
-  pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowDD;
-  pScreenPriv->pwinRealizeInstalledPalette
-    = winRealizeInstalledPaletteShadowDD;
-  pScreenPriv->pwinInstallColormap = winInstallColormapShadowDD;
-  pScreenPriv->pwinStoreColors = winStoreColorsShadowDD;
-  pScreenPriv->pwinCreateColormap = winCreateColormapShadowDD;
-  pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowDD;
-  pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;
-  pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDD;
-  pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDD;
-#ifdef XWIN_MULTIWINDOW
-  pScreenPriv->pwinFinishCreateWindowsWindow =
-    (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
-#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"

+

+

+/*

+ * External symbols

+ */

+

+extern HWND			g_hDlgExit;

+extern const char *g_pszLogFile;

+

+/*

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

+ * so we have to redefine it here.

+ */

+#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 */

+

+

+/*

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

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

+ */

+#ifndef IID_IDirectDraw2

+DEFINE_GUID( IID_IDirectDraw2,0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );

+#endif /* IID_IDirectDraw2 */

+

+

+/*

+ * Local prototypes

+ */

+

+static Bool

+winAllocateFBShadowDD (ScreenPtr pScreen);

+

+static void

+winShadowUpdateDD (ScreenPtr pScreen, 

+		   shadowBufPtr pBuf);

+

+static Bool

+winCloseScreenShadowDD (int nIndex, ScreenPtr pScreen);

+

+static Bool

+winInitVisualsShadowDD (ScreenPtr pScreen);

+

+static Bool

+winAdjustVideoModeShadowDD (ScreenPtr pScreen);

+

+static Bool

+winBltExposedRegionsShadowDD (ScreenPtr pScreen);

+

+static Bool

+winActivateAppShadowDD (ScreenPtr pScreen);

+

+static Bool

+winRedrawScreenShadowDD (ScreenPtr pScreen);

+

+static Bool

+winRealizeInstalledPaletteShadowDD (ScreenPtr pScreen);

+

+static Bool

+winInstallColormapShadowDD (ColormapPtr pColormap);

+

+static Bool

+winStoreColorsShadowDD (ColormapPtr pmap, 

+			int ndef,

+			xColorItem *pdefs);

+

+static Bool

+winCreateColormapShadowDD (ColormapPtr pColormap);

+

+static Bool

+winDestroyColormapShadowDD (ColormapPtr pColormap);

+

+static Bool

+winCreatePrimarySurfaceShadowDD (ScreenPtr pScreen);

+

+static Bool

+winReleasePrimarySurfaceShadowDD (ScreenPtr pScreen);

+

+

+/*

+ * Create the primary surface and attach the clipper.

+ * Used for both the initial surface creation and during

+ * WM_DISPLAYCHANGE messages.

+ */

+

+static Bool

+winCreatePrimarySurfaceShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  HRESULT		ddrval = DD_OK;

+  DDSURFACEDESC		ddsd;

+

+  /* 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 = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,

+				       &ddsd,

+				       &pScreenPriv->pddsPrimary,

+				       NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winCreatePrimarySurfaceShadowDD - Could not create primary "

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

+      return FALSE;

+    }

+  

+#if CYGDEBUG

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

+#endif

+

+  /*

+   * Attach a clipper to the primary surface that will clip our blits to our

+   * display window.

+   */

+  ddrval = IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,

+					   pScreenPriv->pddcPrimary);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winCreatePrimarySurfaceShadowDD - Primary attach clipper "

+	      "failed: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+#if CYGDEBUG

+  winDebug ("winCreatePrimarySurfaceShadowDD - Attached clipper to "

+	  "primary surface\n");

+#endif

+

+  /* Everything was correct */

+  return TRUE;

+}

+

+

+/*

+ * Detach the clipper and release the primary surface.

+ * Called from WM_DISPLAYCHANGE.

+ */

+

+static Bool

+winReleasePrimarySurfaceShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+

+  ErrorF ("winReleasePrimarySurfaceShadowDD - Hello\n");

+

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

+  if (pScreenPriv->pddsPrimary)

+    {

+      /*

+       * Detach the clipper from the primary surface.

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

+       */

+      IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,

+				      NULL);

+

+      ErrorF ("winReleasePrimarySurfaceShadowDD - Detached clipper\n");

+

+      /* Release the primary surface */

+      IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);

+      pScreenPriv->pddsPrimary = NULL;

+    }

+

+  ErrorF ("winReleasePrimarySurfaceShadowDD - 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.

+ */

+

+static Bool

+winAllocateFBShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;  

+  HRESULT		ddrval = DD_OK;

+  DDSURFACEDESC		ddsd;

+  DDSURFACEDESC		*pddsdShadow = NULL;

+

+#if CYGDEBUG

+  winDebug ("winAllocateFBShadowDD\n");

+#endif

+

+  /* Create a clipper */

+  ddrval = (*g_fpDirectDrawCreateClipper) (0,

+					   &pScreenPriv->pddcPrimary,

+					   NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDD - Could not create clipper: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+#if CYGDEBUG

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

+#endif

+

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

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

+

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

+  ddrval = IDirectDrawClipper_SetHWnd (pScreenPriv->pddcPrimary,

+				       0,

+				       pScreenPriv->hwndScreen);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDD - Clipper not attached to "

+	      "window: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+#if CYGDEBUG

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

+#endif

+

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

+  ddrval = (*g_fpDirectDrawCreate) (NULL, &pScreenPriv->pdd, NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDD - Could not start DirectDraw: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+#if CYGDEBUG

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

+#endif

+

+  /* Get a DirectDraw2 interface pointer */

+  ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,

+				       &IID_IDirectDraw2,

+				       (LPVOID*) &pScreenPriv->pdd2);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDD - Failed DD2 query: %08x\n",

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+  /* Are we full screen? */

+  if (pScreenInfo->fFullScreen)

+    {

+      DDSURFACEDESC	ddsdCurrent;

+      DWORD		dwRefreshRateCurrent = 0;

+      HDC		hdc = NULL;

+

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

+      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,

+						 pScreenPriv->hwndScreen,

+						 DDSCL_EXCLUSIVE

+						 | DDSCL_FULLSCREEN);

+      if (FAILED (ddrval))

+	{

+	  ErrorF ("winAllocateFBShadowDD - 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 = IDirectDraw2_GetDisplayMode (pScreenPriv->pdd2,

+						&ddsdCurrent);

+	  if (FAILED (ddrval))

+	    {

+	      ErrorF ("winAllocateFBShadowDD - 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 ("winAllocateFBShadowDD - 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))

+	{

+	  ErrorF ("winAllocateFBShadowDD - Changing video mode\n");

+

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

+	  ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,

+						pScreenInfo->dwWidth,

+						pScreenInfo->dwHeight,

+						pScreenInfo->dwBPP,

+						pScreenInfo->dwRefreshRate,

+						0);

+	  if (FAILED (ddrval))

+	    {

+	      ErrorF ("winAllocateFBShadowDD - Could not set "\

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

+		      (unsigned int) ddrval);

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

+	      ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,

+						    pScreenInfo->dwWidth,

+						    pScreenInfo->dwHeight,

+						    pScreenInfo->dwBPP,

+						    0,

+						    0);

+	      if (FAILED(ddrval))

+		{

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

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

+				(unsigned int) ddrval);

+			return FALSE;

+		}

+	    }

+	}

+      else

+	{

+	  ErrorF ("winAllocateFBShadowDD - Not changing video mode\n");

+	}

+

+      /* Release our DC */

+      ReleaseDC (NULL, hdc);

+      hdc = NULL;

+    }

+  else

+    {

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

+      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,

+						 pScreenPriv->hwndScreen,

+						 DDSCL_NORMAL);

+      if (FAILED (ddrval))

+	{

+	  ErrorF ("winAllocateFBShadowDD - Could not set "\

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

+		  (unsigned int) ddrval);

+	  return FALSE;

+	}

+    }

+

+  /* Create the primary surface */

+  if (!winCreatePrimarySurfaceShadowDD (pScreen))

+    {

+      ErrorF ("winAllocateFBShadowDD - winCreatePrimarySurfaceShadowDD "

+	      "failed\n");

+      return FALSE;

+    }

+

+  /* 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 (&ddsd, sizeof (ddsd));

+  ddsd.dwSize = sizeof (ddsd);

+  ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;

+  ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;

+  ddsd.dwHeight = pScreenInfo->dwHeight;

+  ddsd.dwWidth = pScreenInfo->dwWidth;

+

+  /* Create the shadow surface */

+  ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,

+				       &ddsd,

+				       &pScreenPriv->pddsShadow,

+				       NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winAllocateFBShadowDD - Could not create shadow "\

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

+      return FALSE;

+    }

+  

+#if CYGDEBUG

+  winDebug ("winAllocateFBShadowDD - Created shadow\n");

+#endif

+

+  /* Allocate a DD surface description for our screen privates */

+  pddsdShadow = pScreenPriv->pddsdShadow = malloc (sizeof (DDSURFACEDESC));

+  if (pddsdShadow == NULL)

+    {

+      ErrorF ("winAllocateFBShadowDD - Could not allocate surface "\

+	      "description memory\n");

+      return FALSE;

+    }

+  ZeroMemory (pddsdShadow, sizeof (*pddsdShadow));

+  pddsdShadow->dwSize = sizeof (*pddsdShadow);

+

+#if CYGDEBUG

+  winDebug ("winAllocateFBShadowDD - Locking shadow\n");

+#endif

+

+  /* Lock the shadow surface */

+  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,

+				     NULL,

+				     pddsdShadow,

+				     DDLOCK_WAIT,

+				     NULL);

+  if (FAILED (ddrval) || pddsdShadow->lpSurface == NULL)

+    {

+      ErrorF ("winAllocateFBShadowDD - Could not lock shadow "\

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

+      return FALSE;

+    }

+

+#if CYGDEBUG

+  winDebug ("winAllocateFBShadowDD - Locked shadow\n");

+#endif

+

+  /* We don't know how to deal with anything other than RGB */

+  if (!(pddsdShadow->ddpfPixelFormat.dwFlags & DDPF_RGB))

+    {

+      ErrorF ("winAllocateFBShadowDD - Color format other than RGB\n");

+      return FALSE;

+    }

+

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

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

+    / pScreenInfo->dwBPP;

+

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

+  pScreenInfo->pfb = pddsdShadow->lpSurface;

+  

+  /* Grab the color depth and masks from the surface description */

+  pScreenPriv->dwRedMask = pddsdShadow->ddpfPixelFormat.u2.dwRBitMask;

+  pScreenPriv->dwGreenMask = pddsdShadow->ddpfPixelFormat.u3.dwGBitMask;

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

+

+#if CYGDEBUG

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

+#endif

+

+  return TRUE;

+}

+

+

+/*

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

+ */

+

+static void

+winShadowUpdateDD (ScreenPtr pScreen, 

+		   shadowBufPtr pBuf)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RegionPtr		damage = shadowDamage(pBuf);

+  HRESULT		ddrval = DD_OK;

+  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;

+

+  /* 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);

+

+  /* Unlock the shadow surface, so we can blit */

+  ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winShadowUpdateDD - Unlock failed\n");

+      return;

+    }

+

+  /*

+   * 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 rectange */

+	  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 */

+	  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,

+					    &rcDest,

+					    pScreenPriv->pddsShadow,

+					    &rcSrc,

+					    DDBLT_WAIT,

+					    NULL);

+	  

+	  /* 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;

+

+      /* 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 */

+      ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,

+					&rcDest,

+					pScreenPriv->pddsShadow,

+					&rcSrc,

+					DDBLT_WAIT,

+					NULL);

+

+      /* Reset the clip region */

+      SelectClipRgn (pScreenPriv->hdcScreen, NULL);

+    }

+

+  /* Relock the shadow surface */

+  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,

+				     NULL,

+				     pScreenPriv->pddsdShadow,

+				     DDLOCK_WAIT,

+				     NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winShadowUpdateDD - Lock failed\n");

+      return;

+    }

+

+  /* Has our memory pointer changed? */

+  if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)

+    {

+      ErrorF ("winShadowUpdateDD - Memory location of the shadow "

+	      "surface has changed, trying to update the root window "

+	      "pixmap header to point to the new address.  If you get "

+	      "this message and "PROJECT_NAME" freezes or crashes "

+	      "after this message then send a problem report and your "

+	      "%s file to " BUILDERADDR "\n", g_pszLogFile);

+

+      /* Location of shadow framebuffer has changed */

+      pScreenInfo->pfb = pScreenPriv->pddsdShadow->lpSurface;

+      

+      /* Update the screen pixmap */

+      if (!(*pScreen->ModifyPixmapHeader)(pScreen->devPrivate,

+					  pScreen->width,

+					  pScreen->height,

+					  pScreen->rootDepth,

+					  BitsPerPixel (pScreen->rootDepth),

+					  PixmapBytePad (pScreenInfo->dwStride,

+							 pScreenInfo->dwBPP),

+					  pScreenInfo->pfb))

+	{

+	  ErrorF ("winShadowUpdateDD - Bits changed, could not "

+		  "notify fb.\n");

+	  return;

+	}

+    }

+}

+

+

+/*

+ * Call the wrapped CloseScreen function.

+ * 

+ * Free our resources and private structures.

+ */

+

+static Bool

+winCloseScreenShadowDD (int nIndex, ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  Bool			fReturn;

+  

+#if CYGDEBUG

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

+#endif

+

+  /* 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);

+

+  /* Free the screen DC */

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

+

+  /* Delete the window property */

+  RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);

+

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

+  if (pScreenPriv->pddsShadow)

+    {

+      IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);

+      IDirectDrawSurface2_Release (pScreenPriv->pddsShadow);

+      pScreenPriv->pddsShadow = NULL;

+    }

+

+  /* Detach the clipper from the primary surface and release the clipper. */

+  if (pScreenPriv->pddcPrimary)

+    {

+      /* Detach the clipper */

+      IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,

+				      NULL);

+

+      /* Release the clipper object */

+      IDirectDrawClipper_Release (pScreenPriv->pddcPrimary);

+      pScreenPriv->pddcPrimary = NULL;

+    }

+

+  /* Release the primary surface, if there is one */

+  if (pScreenPriv->pddsPrimary)

+    {

+      IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);

+      pScreenPriv->pddsPrimary = NULL;

+    }

+

+  /* Free the DirectDraw2 object, if there is one */

+  if (pScreenPriv->pdd2)

+    {

+      IDirectDraw2_RestoreDisplayMode (pScreenPriv->pdd2);

+      IDirectDraw2_Release (pScreenPriv->pdd2);

+      pScreenPriv->pdd2 = NULL;

+    }

+

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

+  if (pScreenPriv->pdd)

+    {

+      IDirectDraw_Release (pScreenPriv->pdd);

+      pScreenPriv->pdd = NULL;

+    }

+

+  /* 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;

+

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

+  pScreenInfo->pfb = 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

+winInitVisualsShadowDD (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;

+  

+  ErrorF ("winInitVisualsShadowDD - 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:

+#if defined(XFree86Server)

+      /* Create the real visual */

+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     TrueColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     TrueColor,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsShadowDD - 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 ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "

+		  "failed for PseudoColor\n");

+	  return FALSE;

+	}

+#endif

+#else /* XFree86Server */

+      /* Create the real visual */

+      if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     TrueColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "

+		  "failed for TrueColor\n");

+	  return FALSE;

+	}

+

+#ifdef XWIN_EMULATEPSEUDO

+      if (!pScreenInfo->fEmulatePseudo)

+	break;

+

+      /* Setup a pseudocolor visual */

+      if (!fbSetVisualTypesAndMasks (8,

+				     PseudoColorMask,

+				     8,

+				     0,

+				     0,

+				     0))

+	{

+	  ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "

+		  "failed for PseudoColor\n");

+	  return FALSE;

+	}

+#endif

+#endif /* XFree86Server */

+      break;

+

+    case 8:

+#if defined(XFree86Server)

+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     pScreenInfo->fFullScreen 

+				     ? PseudoColorMask : StaticColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     pScreenInfo->fFullScreen 

+				     ? PseudoColor : StaticColor,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "

+		  "failed\n");

+	  return FALSE;

+	}

+#else /* XFree86Server */

+      if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     pScreenInfo->fFullScreen 

+				     ? PseudoColorMask : StaticColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "

+		  "failed\n");

+	  return FALSE;

+	}

+#endif /* XFree86Server */

+      break;

+

+    default:

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

+      return FALSE;

+    }

+

+#if CYGDEBUG

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

+#endif

+

+  return TRUE;

+}

+

+

+/*

+ * Adjust the user proposed video mode

+ */

+

+static Bool

+winAdjustVideoModeShadowDD (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 ("winAdjustVideoModeShadowDD - 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->dwBPP == WIN_DEFAULT_BPP)

+    {

+      /* No -depth parameter passed, let the user know the depth being used */

+      ErrorF ("winAdjustVideoModeShadowDD - Using Windows display "

+	      "depth of %d bits per pixel\n", (int) dwBPP);

+

+      /* Use GDI's depth */

+      pScreenInfo->dwBPP = dwBPP;

+    }

+  else if (pScreenInfo->fFullScreen

+	   && pScreenInfo->dwBPP != dwBPP)

+    {

+      /* FullScreen, and GDI depth differs from -depth parameter */

+      ErrorF ("winAdjustVideoModeShadowDD - FullScreen, using command line "

+	      "bpp: %d\n", (int) pScreenInfo->dwBPP);

+    }

+  else if (dwBPP != pScreenInfo->dwBPP)

+    {

+      /* Windowed, and GDI depth differs from -depth parameter */

+      ErrorF ("winAdjustVideoModeShadowDD - Windowed, command line bpp: "

+	      "%d, using bpp: %d\n", (int) pScreenInfo->dwBPP, (int) dwBPP);

+

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

+      pScreenInfo->dwBPP = dwBPP;

+    }

+  

+  /* See if the shadow bitmap will be larger than the DIB size limit */

+  if (pScreenInfo->dwWidth * pScreenInfo->dwHeight * pScreenInfo->dwBPP

+      >= WIN_DIB_MAXIMUM_SIZE)

+    {

+      ErrorF ("winAdjustVideoModeShadowDD - Requested DirectDraw surface "

+	      "will be larger than %d MB.  The surface may fail to be "

+	      "allocated on Windows 95, 98, or Me, due to a %d MB limit in "

+	      "DIB size.  This limit does not apply to Windows NT/2000, and "

+	      "this message may be ignored on those platforms.\n",

+	      WIN_DIB_MAXIMUM_SIZE_MB, WIN_DIB_MAXIMUM_SIZE_MB);

+    }

+

+  /* Release our DC */

+  ReleaseDC (NULL, hdc);

+  return TRUE;

+}

+

+

+/*

+ * Blt exposed regions to the screen

+ */

+

+static Bool

+winBltExposedRegionsShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RECT			rcSrc, rcDest;

+  POINT			ptOrigin;

+  HDC			hdcUpdate = NULL;

+  PAINTSTRUCT		ps;

+  HRESULT		ddrval = DD_OK;

+  Bool			fReturn = TRUE;

+  Bool			fLocked = TRUE;

+  int			i;

+

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

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

+  if (hdcUpdate == NULL)

+    {

+      ErrorF ("winBltExposedRegionsShadowDD - BeginPaint () returned "

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

+      return FALSE;

+    }

+  

+  /* Unlock the shadow surface, so we can blit */

+  ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);

+  if (FAILED (ddrval))

+    {

+      fReturn = FALSE;

+      goto winBltExposedRegionsShadowDD_Exit;

+    }

+  else

+    {

+      /* Flag that we have unlocked the shadow surface */

+      fLocked = FALSE;

+    }

+

+  /* 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 enter shadow surface, as Blt should clip */

+  rcSrc.left = 0;

+  rcSrc.top = 0;

+  rcSrc.right = pScreenInfo->dwWidth;

+  rcSrc.bottom = pScreenInfo->dwHeight;

+

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

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

+    {

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

+      ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,

+					&rcDest,

+					pScreenPriv->pddsShadow,

+					&rcSrc,

+					DDBLT_WAIT,

+					NULL);

+      if (ddrval == DDERR_SURFACELOST)

+	{

+	  /* Surface was lost */

+	  ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Blt "

+		  "reported that the primary surface was lost, "

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

+

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

+	  ddrval = IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);

+	  ErrorF ("winBltExposedRegionsShadowDD - "

+		  "IDirectDrawSurface2_Restore 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", (unsigned int) ddrval);

+

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

+	  continue;

+	}

+      else if (FAILED (ddrval))

+	{

+	  fReturn = FALSE;

+	  ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Blt "

+		  "failed, but surface not lost: %08x %d\n",

+		  (unsigned int) ddrval, (int) ddrval);

+	  goto winBltExposedRegionsShadowDD_Exit;

+	}

+      else

+	{

+	  /* Success, stop looping */

+	  break;

+	}

+    }

+

+  /* Relock the shadow surface */

+  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,

+				     NULL,

+				     pScreenPriv->pddsdShadow,

+				     DDLOCK_WAIT,

+				     NULL);

+  if (FAILED (ddrval))

+    {

+      fReturn = FALSE;

+      ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Lock "

+	      "failed\n");

+      goto winBltExposedRegionsShadowDD_Exit;

+    }

+  else

+    {

+      /* Indicate that we have relocked the shadow surface */

+      fLocked = TRUE;

+    }

+

+  /* Has our memory pointer changed? */

+  if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)

+    winUpdateFBPointer (pScreen,

+			pScreenPriv->pddsdShadow->lpSurface);

+

+ winBltExposedRegionsShadowDD_Exit:

+  /* EndPaint frees the DC */

+  if (hdcUpdate != NULL)

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

+

+  /*

+   * Relock the surface if it is not locked.  We don't care if locking fails,

+   * as it will cause the server to shutdown within a few more operations.

+   */

+  if (!fLocked)

+    {

+      IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,

+				NULL,

+				pScreenPriv->pddsdShadow,

+				DDLOCK_WAIT,

+				NULL);

+

+      /* Has our memory pointer changed? */

+      if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)

+	winUpdateFBPointer (pScreen,

+			    pScreenPriv->pddsdShadow->lpSurface);

+      

+      fLocked = TRUE;

+    }

+  return fReturn;

+}

+

+

+/*

+ * Do any engine-specific appliation-activation processing

+ */

+

+static Bool

+winActivateAppShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+

+  /*

+   * Do we have a surface?

+   * Are we active?

+   * Are we fullscreen?

+   */

+  if (pScreenPriv != NULL

+      && pScreenPriv->pddsPrimary != NULL

+      && pScreenPriv->fActive)

+    {

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

+      IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Reblit the shadow framebuffer to the screen.

+ */

+

+static Bool

+winRedrawScreenShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  HRESULT		ddrval = DD_OK;

+  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 */

+  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,

+				    &rcDest,

+				    pScreenPriv->pddsShadow,

+				    &rcSrc,

+				    DDBLT_WAIT,

+				    NULL);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winRedrawScreenShadowDD - IDirectDrawSurface_Blt () "

+	      "failed: %08x\n",

+	      (unsigned int) ddrval);

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Realize the currently installed colormap

+ */

+

+static Bool

+winRealizeInstalledPaletteShadowDD (ScreenPtr pScreen)

+{

+  return TRUE;

+}

+

+

+/*

+ * Install the specified colormap

+ */

+

+static Bool

+winInstallColormapShadowDD (ColormapPtr pColormap)

+{

+  ScreenPtr		pScreen = pColormap->pScreen;

+  winScreenPriv(pScreen);

+  winCmapPriv(pColormap);

+  HRESULT		ddrval = DD_OK;

+

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

+  ddrval = IDirectDrawSurface2_SetPalette (pScreenPriv->pddsPrimary,

+					   pCmapPriv->lpDDPalette);

+  if (FAILED (ddrval))

+    {

+      ErrorF ("winInstallColormapShadowDD - 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

+winStoreColorsShadowDD (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 ("winStoreColorsShadowDD - SetEntries () failed\n");

+      return FALSE;

+    }

+

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

+  if (pColormap != curpmap)

+    {

+      return TRUE;

+    }

+

+  if (!winInstallColormapShadowDD (pColormap))

+    {

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

+      return FALSE;

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Colormap initialization procedure

+ */

+

+static Bool

+winCreateColormapShadowDD (ColormapPtr pColormap)

+{

+  HRESULT		ddrval = DD_OK;

+  ScreenPtr		pScreen = pColormap->pScreen;

+  winScreenPriv(pScreen);

+  winCmapPriv(pColormap);

+  

+  /* Create a DirectDraw palette */

+  ddrval = IDirectDraw2_CreatePalette (pScreenPriv->pdd,

+				       DDPCAPS_8BIT | DDPCAPS_ALLOW256,

+				       pCmapPriv->peColors,

+				       &pCmapPriv->lpDDPalette,

+				       NULL);

+  if (FAILED (ddrval))

+    {

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

+      return FALSE;

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Colormap destruction procedure

+ */

+

+static Bool

+winDestroyColormapShadowDD (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)

+    {

+#if CYGDEBUG

+      winDebug ("winDestroyColormapShadowDD - Destroying default "

+	      "colormap\n");

+#endif

+      

+      /*

+       * 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 = IDirectDrawSurface2_SetPalette (pScreenPriv->pddsPrimary,

+					       NULL);

+      if (FAILED (ddrval))

+	{

+	  ErrorF ("winDestroyColormapShadowDD - 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 engine specific functions

+ */

+

+Bool

+winSetEngineFunctionsShadowDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  

+  /* Set our pointers */

+  pScreenPriv->pwinAllocateFB = winAllocateFBShadowDD;

+  pScreenPriv->pwinShadowUpdate = winShadowUpdateDD;

+  pScreenPriv->pwinCloseScreen = winCloseScreenShadowDD;

+  pScreenPriv->pwinInitVisuals = winInitVisualsShadowDD;

+  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowDD;

+  if (pScreenInfo->fFullScreen)

+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;

+  else

+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;

+  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;

+  pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowDD;

+  pScreenPriv->pwinActivateApp = winActivateAppShadowDD;

+  pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowDD;

+  pScreenPriv->pwinRealizeInstalledPalette

+    = winRealizeInstalledPaletteShadowDD;

+  pScreenPriv->pwinInstallColormap = winInstallColormapShadowDD;

+  pScreenPriv->pwinStoreColors = winStoreColorsShadowDD;

+  pScreenPriv->pwinCreateColormap = winCreateColormapShadowDD;

+  pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowDD;

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

+  pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDD;

+  pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDD;

+#ifdef XWIN_MULTIWINDOW

+  pScreenPriv->pwinFinishCreateWindowsWindow =

+    (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;

+#endif

+

+  return TRUE;

+}