Synchronised line endinge with release branch

1 files changed, 1238 insertions, 1238 deletions

diff --git a/xorg-server/hw/xwin/winshadgdi.c b/xorg-server/hw/xwin/winshadgdi.c
index bcb2051fc..718101299 100644
--- a/xorg-server/hw/xwin/winshadgdi.c
+++ b/xorg-server/hw/xwin/winshadgdi.c
@@ -1,1238 +1,1238 @@
-/*

- *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II

- *shall not be used in advertising or otherwise to promote the sale, use

- *or other dealings in this Software without prior written authorization

- *from Harold L Hunt II.

- *

- * Authors:	Harold L Hunt II

- */

-

-#ifdef HAVE_XWIN_CONFIG_H

-#include <xwin-config.h>

-#endif

-#include "win.h"

-

-

-/*

- * Local function prototypes

- */

-

-#ifdef XWIN_MULTIWINDOW

-static wBOOL CALLBACK

-winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam);

-

-static wBOOL CALLBACK

-winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam);

-#endif

-

-static Bool

-winAllocateFBShadowGDI (ScreenPtr pScreen);

-

-static void

-winShadowUpdateGDI (ScreenPtr pScreen, 

-		    shadowBufPtr pBuf);

-

-static Bool

-winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen);

-

-static Bool

-winInitVisualsShadowGDI (ScreenPtr pScreen);

-

-static Bool

-winAdjustVideoModeShadowGDI (ScreenPtr pScreen);

-

-static Bool

-winBltExposedRegionsShadowGDI (ScreenPtr pScreen);

-

-static Bool

-winActivateAppShadowGDI (ScreenPtr pScreen);

-

-static Bool

-winRedrawScreenShadowGDI (ScreenPtr pScreen);

-

-static Bool

-winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen);

-

-static Bool

-winInstallColormapShadowGDI (ColormapPtr pColormap);

-

-static Bool

-winStoreColorsShadowGDI (ColormapPtr pmap, 

-			 int ndef,

-			 xColorItem *pdefs);

-

-static Bool

-winCreateColormapShadowGDI (ColormapPtr pColormap);

-

-static Bool

-winDestroyColormapShadowGDI (ColormapPtr pColormap);

-

-

-/*

- * Internal function to get the DIB format that is compatible with the screen

- */

-

-static

-Bool

-winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih)

-{

-  winScreenPriv(pScreen);

-  HBITMAP		hbmp;

-#ifdef WINDBG

-  LPDWORD		pdw = NULL;

-#endif

-  

-  /* Create a memory bitmap compatible with the screen */

-  hbmp = CreateCompatibleBitmap (pScreenPriv->hdcScreen, 1, 1);

-  if (hbmp == NULL)

-    {

-      ErrorF ("winQueryScreenDIBFormat - CreateCompatibleBitmap failed\n");

-      return FALSE;

-    }

-  

-  /* Initialize our bitmap info header */

-  ZeroMemory (pbmih, sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD));

-  pbmih->biSize = sizeof (BITMAPINFOHEADER);

-

-  /* Get the biBitCount */

-  if (!GetDIBits (pScreenPriv->hdcScreen,

-		  hbmp,

-		  0, 1,

-		  NULL,

-		  (BITMAPINFO*) pbmih,

-		  DIB_RGB_COLORS))

-    {

-      ErrorF ("winQueryScreenDIBFormat - First call to GetDIBits failed\n");

-      DeleteObject (hbmp);

-      return FALSE;

-    }

-

-#ifdef WINDBG

-  /* Get a pointer to bitfields */

-  pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));

-

-  winDebug ("winQueryScreenDIBFormat - First call masks: %08x %08x %08x\n",

-	  pdw[0], pdw[1], pdw[2]);

-#endif

-

-  /* Get optimal color table, or the optimal bitfields */

-  if (!GetDIBits (pScreenPriv->hdcScreen,

-		  hbmp,

-		  0, 1,

-		  NULL,

-		  (BITMAPINFO*)pbmih,

-		  DIB_RGB_COLORS))

-    {

-      ErrorF ("winQueryScreenDIBFormat - Second call to GetDIBits "

-	      "failed\n");

-      DeleteObject (hbmp);

-      return FALSE;

-    }

-

-  /* Free memory */

-  DeleteObject (hbmp);

-  

-  return TRUE;

-}

-

-

-/*

- * Internal function to determine the GDI bits per rgb and bit masks

- */

-

-static

-Bool

-winQueryRGBBitsAndMasks (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  BITMAPINFOHEADER	*pbmih = NULL;

-  Bool			fReturn = TRUE;

-  LPDWORD		pdw = NULL;

-  DWORD			dwRedBits, dwGreenBits, dwBlueBits;

-

-  /* Color masks for 8 bpp are standardized */

-  if (GetDeviceCaps (pScreenPriv->hdcScreen, RASTERCAPS) & RC_PALETTE)

-    {

-      /* 

-       * RGB BPP for 8 bit palletes is always 8

-       * and the color masks are always 0.

-       */

-      pScreenPriv->dwBitsPerRGB = 8;

-      pScreenPriv->dwRedMask = 0x0L;

-      pScreenPriv->dwGreenMask = 0x0L;

-      pScreenPriv->dwBlueMask = 0x0L;

-      return TRUE;

-    }

-

-  /* Color masks for 24 bpp are standardized */

-  if (GetDeviceCaps (pScreenPriv->hdcScreen, PLANES)

-      * GetDeviceCaps (pScreenPriv->hdcScreen, BITSPIXEL) == 24)

-    {

-      winDebug ("winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) "

-	      "returned 24 for the screen.  Using default 24bpp masks.\n");

-

-      /* 8 bits per primary color */

-      pScreenPriv->dwBitsPerRGB = 8;

-

-      /* Set screen privates masks */

-      pScreenPriv->dwRedMask = WIN_24BPP_MASK_RED;

-      pScreenPriv->dwGreenMask = WIN_24BPP_MASK_GREEN;

-      pScreenPriv->dwBlueMask = WIN_24BPP_MASK_BLUE;

-      

-      return TRUE;

-    }

-

-  /* Allocate a bitmap header and color table */

-  pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)

-				      + 256  * sizeof (RGBQUAD));

-  if (pbmih == NULL)

-    {

-      ErrorF ("winQueryRGBBitsAndMasks - malloc failed\n");

-      return FALSE;

-    }

-

-  /* Get screen description */

-  if (winQueryScreenDIBFormat (pScreen, pbmih))

-    {

-      /* Get a pointer to bitfields */

-      pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));

-      

-#ifdef WINDBG

-      winDebug ("%s - Masks: %08x %08x %08x\n", __FUNCTION__,

-	      pdw[0], pdw[1], pdw[2]);

-      winDebug ("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__,

-              pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, pbmih->biPlanes);

-      winDebug ("%s - Compression: %d %s\n", __FUNCTION__,

-              pbmih->biCompression,

-              (pbmih->biCompression == BI_RGB?"(BI_RGB)":

-               (pbmih->biCompression == BI_RLE8?"(BI_RLE8)":

-                (pbmih->biCompression == BI_RLE4?"(BI_RLE4)":

-                 (pbmih->biCompression == BI_BITFIELDS?"(BI_BITFIELDS)":""

-                 )))));

-#endif

-

-      /* Handle BI_RGB case, which is returned by Wine */

-      if (pbmih->biCompression == BI_RGB)

-        {

-	  dwRedBits = 5;

-	  dwGreenBits = 5;

-	  dwBlueBits = 5;

-	  

-	  pScreenPriv->dwBitsPerRGB = 5;

-	  

-	  /* Set screen privates masks */

-	  pScreenPriv->dwRedMask = 0x7c00;

-	  pScreenPriv->dwGreenMask = 0x03e0;

-	  pScreenPriv->dwBlueMask = 0x001f;

-        }

-      else 

-        {

-          /* Count the number of bits in each mask */

-          dwRedBits = winCountBits (pdw[0]);

-          dwGreenBits = winCountBits (pdw[1]);

-          dwBlueBits = winCountBits (pdw[2]);

-

-	  /* Find maximum bits per red, green, blue */

-	  if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)

-	    pScreenPriv->dwBitsPerRGB = dwRedBits;

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

-	    pScreenPriv->dwBitsPerRGB = dwGreenBits;

-	  else

-	    pScreenPriv->dwBitsPerRGB = dwBlueBits;

-

-	  /* Set screen privates masks */

-	  pScreenPriv->dwRedMask = pdw[0];

-	  pScreenPriv->dwGreenMask = pdw[1];

-	  pScreenPriv->dwBlueMask = pdw[2];

-	}

-    }

-  else

-    {

-      ErrorF ("winQueryRGBBitsAndMasks - winQueryScreenDIBFormat failed\n");

-      free (pbmih);

-      fReturn = FALSE;

-    }

-

-  /* Free memory */

-  free (pbmih);

-

-  return fReturn;

-}

-

-

-#ifdef XWIN_MULTIWINDOW

-/*

- * Redraw all ---?

- */

-

-static wBOOL CALLBACK

-winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam)

-{

-  if (hwnd == (HWND)lParam)

-    return TRUE;  

-  InvalidateRect (hwnd, NULL, FALSE);

-  UpdateWindow (hwnd);

-  return TRUE;

-}

-

-static wBOOL CALLBACK

-winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam)

-{

-  BoxPtr pDamage = (BoxPtr)lParam;

-  RECT rcClient, rcDamage, rcRedraw;

-  POINT topLeft, bottomRight;

-  

-  if (IsIconic (hwnd))

-    return TRUE; /* Don't care minimized windows */

-  

-  /* Convert the damaged area from Screen coords to Client coords */

-  topLeft.x = pDamage->x1; topLeft.y = pDamage->y1;

-  bottomRight.x = pDamage->x2; bottomRight.y = pDamage->y2;

-  topLeft.x += GetSystemMetrics (SM_XVIRTUALSCREEN);

-  bottomRight.x += GetSystemMetrics (SM_XVIRTUALSCREEN);

-  topLeft.y += GetSystemMetrics (SM_YVIRTUALSCREEN);

-  bottomRight.y += GetSystemMetrics (SM_YVIRTUALSCREEN);

-  ScreenToClient (hwnd, &topLeft);

-  ScreenToClient (hwnd, &bottomRight);

-  SetRect (&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);

-

-  GetClientRect (hwnd, &rcClient);

-

-  if (IntersectRect (&rcRedraw, &rcClient, &rcDamage))

-    {

-      InvalidateRect (hwnd, &rcRedraw, FALSE);

-      UpdateWindow (hwnd);

-    }

-  return TRUE;

-}

-#endif

-

-

-/*

- * Allocate a DIB for the shadow framebuffer GDI server

- */

-

-static Bool

-winAllocateFBShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  DIBSECTION		dibsection;

-  Bool			fReturn = TRUE;

-

-  /* Describe shadow bitmap to be created */

-  pScreenPriv->pbmih->biWidth = pScreenInfo->dwWidth;

-  pScreenPriv->pbmih->biHeight = -pScreenInfo->dwHeight;

-

-  winDebug ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d "

-	  "depth: %d\n",

-	  (int) pScreenPriv->pbmih->biWidth, (int) -pScreenPriv->pbmih->biHeight, pScreenPriv->pbmih->biBitCount);

-

-  /* Create a DI shadow bitmap with a bit pointer */

-  pScreenPriv->hbmpShadow = CreateDIBSection (pScreenPriv->hdcScreen,

-					      (BITMAPINFO *) pScreenPriv->pbmih,

-					      DIB_RGB_COLORS,

-					      (VOID**) &pScreenInfo->pfb,

-					      NULL,

-					      0);

-  if (pScreenPriv->hbmpShadow == NULL || pScreenInfo->pfb == NULL)

-    {

-      winW32Error ("winAllocateFBShadowGDI - CreateDIBSection failed:");

-      return FALSE;

-    }

-  else

-    {

-      winDebug ("winAllocateFBShadowGDI - Shadow buffer allocated\n");

-    }

-

-  /* Get information about the bitmap that was allocated */

-  GetObject (pScreenPriv->hbmpShadow,

-	     sizeof (dibsection),

-	     &dibsection);

-

-  /* Print information about bitmap allocated */

-  winDebug ("winAllocateFBShadowGDI - Dibsection width: %d height: %d "

-	  "depth: %d size image: %d\n",

-	  (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight,

-	  dibsection.dsBmih.biBitCount,

-	  (int) dibsection.dsBmih.biSizeImage);

-

-  /* Select the shadow bitmap into the shadow DC */

-  SelectObject (pScreenPriv->hdcShadow,

-		pScreenPriv->hbmpShadow);

-

-  winDebug ("winAllocateFBShadowGDI - Attempting a shadow blit\n");

-

-  /* Do a test blit from the shadow to the screen, I think */

-  fReturn = BitBlt (pScreenPriv->hdcScreen,

-		    0, 0,

-		    pScreenInfo->dwWidth, pScreenInfo->dwHeight,

-		    pScreenPriv->hdcShadow,

-		    0, 0,

-		    SRCCOPY);

-  if (fReturn)

-    {

-      winDebug ("winAllocateFBShadowGDI - Shadow blit success\n");

-    }

-  else

-    {

-      winW32Error ("winAllocateFBShadowGDI - Shadow blit failure\n");

-      /* ago: ignore this error. The blit fails with wine, but does not 

-       * cause any problems later. */

-

-      fReturn = TRUE;

-    }

-

-  /* Look for height weirdness */

-  if (dibsection.dsBmih.biHeight < 0)

-    {

-      dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight;

-    }

-

-  /* Set screeninfo stride */

-  pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage

-			    / dibsection.dsBmih.biHeight)

-			   * 8) / pScreenInfo->dwBPP;

-

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

-	  (int) pScreenInfo->dwStride);

-

-#ifdef XWIN_MULTIWINDOW

-  /* Redraw all windows */

-  if (pScreenInfo->fMultiWindow)

-    EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);

-#endif

-

-  return fReturn;

-}

-

-static void

-winFreeFBShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;

-

-  /* Free the shadow bitmap */

-  DeleteObject (pScreenPriv->hbmpShadow);

-

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

-  pScreenInfo->pfb = NULL;

-}

-

-/*

- * Blit the damaged regions of the shadow fb to the screen

- */

-

-static void

-winShadowUpdateGDI (ScreenPtr pScreen, 

-		    shadowBufPtr pBuf)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  RegionPtr		damage = shadowDamage(pBuf);

-  DWORD			dwBox = RegionNumRects (damage);

-  BoxPtr		pBox = RegionRects (damage);

-  int			x, y, w, h;

-  HRGN			hrgnTemp = NULL, hrgnCombined = NULL;

-#ifdef XWIN_UPDATESTATS

-  static DWORD		s_dwNonUnitRegions = 0;

-  static DWORD		s_dwTotalUpdates = 0;

-  static DWORD		s_dwTotalBoxes = 0;

-#endif

-  BoxPtr		pBoxExtents = RegionExtents(damage);

-

-  /*

-   * 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;

-

-#ifdef XWIN_UPDATESTATS

-  ++s_dwTotalUpdates;

-  s_dwTotalBoxes += dwBox;

-

-  if (dwBox != 1)

-    {

-      ++s_dwNonUnitRegions;

-      winDebug ("winShadowUpdatGDI - dwBox: %d\n", dwBox);

-    }

-  

-  if ((s_dwTotalUpdates % 100) == 0)

-  {

-    winDebug ("winShadowUpdateGDI - %d%% non-unity regions, avg boxes: %d "

-	    "nu: %d tu: %d\n",

-	    (s_dwNonUnitRegions * 100) / s_dwTotalUpdates,

-	    s_dwTotalBoxes / s_dwTotalUpdates,

-	    s_dwNonUnitRegions, s_dwTotalUpdates);

-  }

-#endif /* XWIN_UPDATESTATS */

-

-  /*

-   * 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->fMultiWindow &&

-      (pScreenInfo->dwClipUpdatesNBoxes == 0 ||

-      dwBox < pScreenInfo->dwClipUpdatesNBoxes))

-    {

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

-      while (dwBox--)

-	{

-	  /*

-	   * Calculate x offset, y offset, width, and height for

-	   * current damage box

-	   */

-	  x = pBox->x1;

-	  y = pBox->y1;

-	  w = pBox->x2 - pBox->x1;

-	  h = pBox->y2 - pBox->y1;

-	  

-	  BitBlt (pScreenPriv->hdcScreen,

-		  x, y,

-		  w, h,

-		  pScreenPriv->hdcShadow,

-		  x, y,

-		  SRCCOPY);

-	  

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

-	  ++pBox;

-	}

-    }

-  else if (!pScreenInfo->fMultiWindow)

-    {

-      /* 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;

-      

-      /*

-       * Blit the shadow buffer to the screen,

-       * constrained to the clipping region.

-       */

-      BitBlt (pScreenPriv->hdcScreen,

-	      pBoxExtents->x1, pBoxExtents->y1,

-	      pBoxExtents->x2 - pBoxExtents->x1,

-	      pBoxExtents->y2 - pBoxExtents->y1,

-	      pScreenPriv->hdcShadow,

-	      pBoxExtents->x1, pBoxExtents->y1,

-	      SRCCOPY);

-

-      /* Reset the clip region */

-      SelectClipRgn (pScreenPriv->hdcScreen, NULL);

-    }

-

-#ifdef XWIN_MULTIWINDOW

-  /* Redraw all multiwindow windows */

-  if (pScreenInfo->fMultiWindow)

-    EnumThreadWindows (g_dwCurrentThreadID,

-		       winRedrawDamagedWindowShadowGDI,

-		       (LPARAM)pBoxExtents);

-#endif

-}

-

-

-static Bool

-winInitScreenShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-

-  /* Get device contexts for the screen and shadow bitmap */

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

-  pScreenPriv->hdcShadow = CreateCompatibleDC (pScreenPriv->hdcScreen);

-

-  /* Allocate bitmap info header */

-  pScreenPriv->pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)

-                                                   + 256 * sizeof (RGBQUAD));

-  if (pScreenPriv->pbmih == NULL)

-    {

-      ErrorF ("winInitScreenShadowGDI - malloc () failed\n");

-      return FALSE;

-    }

-

-  /* Query the screen format */

-  if (!winQueryScreenDIBFormat (pScreen, pScreenPriv->pbmih))

-    {

-      ErrorF ("winInitScreenShadowGDI - winQueryScreenDIBFormat failed\n");

-      return FALSE;

-    }

-

-  /* Determine our color masks */

-  if (!winQueryRGBBitsAndMasks (pScreen))

-    {

-      ErrorF ("winInitScreenShadowGDI - winQueryRGBBitsAndMasks failed\n");

-      return FALSE;

-    }

-

-  return winAllocateFBShadowGDI(pScreen);

-}

-

-/* See Porting Layer Definition - p. 33 */

-/*

- * We wrap whatever CloseScreen procedure was specified by fb;

- * a pointer to said procedure is stored in our privates.

- */

-

-static Bool

-winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  Bool			fReturn;

-

-  winDebug ("winCloseScreenShadowGDI - 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);

-

-  /* Delete the window property */

-  RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);

-

-  /* Free the shadow DC; which allows the bitmap to be freed */

-  DeleteDC (pScreenPriv->hdcShadow);

-

-  winFreeFBShadowGDI(pScreen);

-

-  /* Free the screen DC */

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

-

-  /* 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

-

-  /* Invalidate 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

-winInitVisualsShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-

-  /* Display debugging information */

-  winDebug ("winInitVisualsShadowGDI - 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 ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "

-		  "failed\n");

-	  return FALSE;

-	}

-

-#ifdef XWIN_EMULATEPSEUDO

-      if (!pScreenInfo->fEmulatePseudo)

-	break;

-

-      /* Setup a pseudocolor visual */

-      if (!miSetVisualTypesAndMasks (8,

-				     PseudoColorMask,

-				     8,

-				     -1,

-				     0,

-				     0,

-				     0))

-	{

-	  ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "

-		  "failed for PseudoColor\n");

-	  return FALSE;

-	}

-#endif

-      break;

-

-    case 8:

-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

-				     PseudoColorMask,

-				     pScreenPriv->dwBitsPerRGB,

-				     PseudoColor,

-				     pScreenPriv->dwRedMask,

-				     pScreenPriv->dwGreenMask,

-				     pScreenPriv->dwBlueMask))

-	{

-	  ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "

-		  "failed\n");

-	  return FALSE;

-	}

-      break;

-

-    default:

-      ErrorF ("winInitVisualsShadowGDI - Unknown screen depth\n");

-      return FALSE;

-    }

-

-  winDebug ("winInitVisualsShadowGDI - Returning\n");

-

-  return TRUE;

-}

-

-

-/*

- * Adjust the proposed video mode

- */

-

-static Bool

-winAdjustVideoModeShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  HDC			hdc;

-  DWORD			dwBPP;

-  

-  hdc = GetDC (NULL);

-

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

-  if (hdc == NULL)

-    {

-      ErrorF ("winAdjustVideoModeShadowGDI - GetDC () failed\n");

-      return FALSE;

-    }

-

-  /* Query GDI for current display depth */

-  dwBPP = GetDeviceCaps (hdc, BITSPIXEL);

-

-  /* GDI cannot change the screen depth, so always use GDI's depth */

-  pScreenInfo->dwBPP = dwBPP;

-

-  /* Release our DC */

-  ReleaseDC (NULL, hdc);

-  hdc = NULL;

-

-  return TRUE;

-}

-

-

-/*

- * Blt exposed regions to the screen

- */

-

-static Bool

-winBltExposedRegionsShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  winPrivCmapPtr	pCmapPriv = NULL;

-  HDC			hdcUpdate;

-  PAINTSTRUCT		ps;

-

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

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

-

-  /* Realize the palette, if we have one */

-  if (pScreenPriv->pcmapInstalled != NULL)

-    {

-      pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);

-      

-      SelectPalette (hdcUpdate, pCmapPriv->hPalette, FALSE);

-      RealizePalette (hdcUpdate);

-    }

-

-  /* Our BitBlt will be clipped to the invalidated region */

-  BitBlt (hdcUpdate,

-	  0, 0,

-	  pScreenInfo->dwWidth, pScreenInfo->dwHeight,

-	  pScreenPriv->hdcShadow,

-	  0, 0,

-	  SRCCOPY);

-

-  /* EndPaint frees the DC */

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

-

-#ifdef XWIN_MULTIWINDOW

-  /* Redraw all windows */

-  if (pScreenInfo->fMultiWindow)

-    EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 

-            (LPARAM)pScreenPriv->hwndScreen);

-#endif

-

-  return TRUE;

-}

-

-

-/*

- * Do any engine-specific appliation-activation processing

- */

-

-static Bool

-winActivateAppShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-

-  /*

-   * 2004/04/12 - Harold - We perform the restoring or minimizing

-   * manually for ShadowGDI in fullscreen modes so that this engine

-   * will perform just like ShadowDD and ShadowDDNL in fullscreen mode;

-   * if we do not do this then our fullscreen window will appear in the

-   * z-order when it is deactivated and it can be uncovered by resizing

-   * or minimizing another window that is on top of it, which is not how

-   * the DirectDraw engines work.  Therefore we keep this code here to

-   * make sure that all engines work the same in fullscreen mode.

-   */

-

-  /*

-   * Are we active?

-   * Are we fullscreen?

-   */

-  if (pScreenPriv->fActive

-      && pScreenInfo->fFullScreen)

-    {

-      /*

-       * Activating, attempt to bring our window 

-       * to the top of the display

-       */

-      ShowWindow (pScreenPriv->hwndScreen, SW_RESTORE);

-    }

-  else if (!pScreenPriv->fActive

-	   && pScreenInfo->fFullScreen)

-    {

-      /*

-       * Deactivating, stuff our window onto the

-       * task bar.

-       */

-      ShowWindow (pScreenPriv->hwndScreen, SW_MINIMIZE);

-    }

-

-  return TRUE;

-}

-

-

-/*

- * Reblit the shadow framebuffer to the screen.

- */

-

-static Bool

-winRedrawScreenShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-

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

-  BitBlt (pScreenPriv->hdcScreen,

-	  0, 0,

-	  pScreenInfo->dwWidth, pScreenInfo->dwHeight,

-	  pScreenPriv->hdcShadow,

-	  0, 0,

-	  SRCCOPY);

-

-#ifdef XWIN_MULTIWINDOW

-  /* Redraw all windows */

-  if (pScreenInfo->fMultiWindow)

-    EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);

-#endif

-

-  return TRUE;

-}

-

-

-

-/*

- * Realize the currently installed colormap

- */

-

-static Bool

-winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winPrivCmapPtr	pCmapPriv = NULL;

-

-  winDebug ("winRealizeInstalledPaletteShadowGDI\n");

-

-  /* Don't do anything if there is not a colormap */

-  if (pScreenPriv->pcmapInstalled == NULL)

-    {

-      winDebug ("winRealizeInstalledPaletteShadowGDI - No colormap "

-	      "installed\n");

-      return TRUE;

-    }

-

-  pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);

-  

-  /* Realize our palette for the screen */

-  if (RealizePalette (pScreenPriv->hdcScreen) == GDI_ERROR)

-    {

-      ErrorF ("winRealizeInstalledPaletteShadowGDI - RealizePalette () "

-	      "failed\n");

-      return FALSE;

-    }

-  

-  /* Set the DIB color table */

-  if (SetDIBColorTable (pScreenPriv->hdcShadow,

-			0,

-			WIN_NUM_PALETTE_ENTRIES,

-			pCmapPriv->rgbColors) == 0)

-    {

-      ErrorF ("winRealizeInstalledPaletteShadowGDI - SetDIBColorTable () "

-	      "failed\n");

-      return FALSE;

-    }

-  

-  return TRUE;

-}

-

-

-/*

- * Install the specified colormap

- */

-

-static Bool

-winInstallColormapShadowGDI (ColormapPtr pColormap)

-{

-  ScreenPtr		pScreen = pColormap->pScreen;

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  winCmapPriv(pColormap);

-

-  /*

-   * Tell Windows to install the new colormap

-   */

-  if (SelectPalette (pScreenPriv->hdcScreen,

-		     pCmapPriv->hPalette,

-		     FALSE) == NULL)

-    {

-      ErrorF ("winInstallColormapShadowGDI - SelectPalette () failed\n");

-      return FALSE;

-    }

-      

-  /* Realize the palette */

-  if (GDI_ERROR == RealizePalette (pScreenPriv->hdcScreen))

-    {

-      ErrorF ("winInstallColormapShadowGDI - RealizePalette () failed\n");

-      return FALSE;

-    }

-

-  /* Set the DIB color table */

-  if (SetDIBColorTable (pScreenPriv->hdcShadow,

-			0,

-			WIN_NUM_PALETTE_ENTRIES,

-			pCmapPriv->rgbColors) == 0)

-    {

-      ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");

-      return FALSE;

-    }

-

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

-  BitBlt (pScreenPriv->hdcScreen,

-	  0, 0,

-	  pScreenInfo->dwWidth, pScreenInfo->dwHeight,

-	  pScreenPriv->hdcShadow,

-	  0, 0,

-	  SRCCOPY);

-

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

-  pScreenPriv->pcmapInstalled = pColormap;

-

-#ifdef XWIN_MULTIWINDOW

-  /* Redraw all windows */

-  if (pScreenInfo->fMultiWindow)

-    EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);

-#endif

-

-  return TRUE;

-}

-

-

-/*

- * Store the specified colors in the specified colormap

- */

-

-static Bool

-winStoreColorsShadowGDI (ColormapPtr pColormap,

-			 int ndef,

-			 xColorItem *pdefs)

-{

-  ScreenPtr		pScreen = pColormap->pScreen;

-  winScreenPriv(pScreen);

-  winCmapPriv(pColormap);

-  ColormapPtr curpmap = pScreenPriv->pcmapInstalled;

-  

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

-  if (SetPaletteEntries (pCmapPriv->hPalette,

-			 pdefs[0].pixel,

-			 ndef,

-			 pCmapPriv->peColors + pdefs[0].pixel) == 0)

-    {

-      ErrorF ("winStoreColorsShadowGDI - SetPaletteEntries () failed\n");

-      return FALSE;

-    }

-

-  /* Don't install the Windows palette if the colormap is not installed */

-  if (pColormap != curpmap)

-    {

-      return TRUE;

-    }

-

-  /* Try to install the newly modified colormap */

-  if (!winInstallColormapShadowGDI (pColormap))

-    {

-      ErrorF ("winInstallColormapShadowGDI - winInstallColormapShadowGDI "

-	      "failed\n");

-      return FALSE;

-    }

-

-#if 0

-  /* Tell Windows that the palette has changed */

-  RealizePalette (pScreenPriv->hdcScreen);

-  

-  /* Set the DIB color table */

-  if (SetDIBColorTable (pScreenPriv->hdcShadow,

-			pdefs[0].pixel,

-			ndef,

-			pCmapPriv->rgbColors + pdefs[0].pixel) == 0)

-    {

-      ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");

-      return FALSE;

-    }

-

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

-  pScreenPriv->pcmapInstalled = pColormap;

-#endif

-

-  return TRUE;

-}

-

-

-/*

- * Colormap initialization procedure

- */

-

-static Bool

-winCreateColormapShadowGDI (ColormapPtr pColormap)

-{

-  LPLOGPALETTE		lpPaletteNew = NULL;

-  DWORD			dwEntriesMax;

-  VisualPtr		pVisual;

-  HPALETTE		hpalNew = NULL;

-  winCmapPriv(pColormap);

-

-  /* Get a pointer to the visual that the colormap belongs to */

-  pVisual = pColormap->pVisual;

-

-  /* Get the maximum number of palette entries for this visual */

-  dwEntriesMax = pVisual->ColormapEntries;

-

-  /* Allocate a Windows logical color palette with max entries */

-  lpPaletteNew = malloc (sizeof (LOGPALETTE)

-			 + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));

-  if (lpPaletteNew == NULL)

-    {

-      ErrorF ("winCreateColormapShadowGDI - Couldn't allocate palette "

-	      "with %d entries\n",

-	      (int) dwEntriesMax);

-      return FALSE;

-    }

-

-  /* Zero out the colormap */

-  ZeroMemory (lpPaletteNew, sizeof (LOGPALETTE)

-	      + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));

-  

-  /* Set the logical palette structure */

-  lpPaletteNew->palVersion = 0x0300;

-  lpPaletteNew->palNumEntries = dwEntriesMax;

-

-  /* Tell Windows to create the palette */

-  hpalNew = CreatePalette (lpPaletteNew);

-  if (hpalNew == NULL)

-    {

-      ErrorF ("winCreateColormapShadowGDI - CreatePalette () failed\n");

-      free (lpPaletteNew);

-      return FALSE;

-    }

-

-  /* Save the Windows logical palette handle in the X colormaps' privates */

-  pCmapPriv->hPalette = hpalNew;

-

-  /* Free the palette initialization memory */

-  free (lpPaletteNew);

-

-  return TRUE;

-}

-

-

-/*

- * Colormap destruction procedure

- */

-

-static Bool

-winDestroyColormapShadowGDI (ColormapPtr pColormap)

-{

-  winScreenPriv(pColormap->pScreen);

-  winCmapPriv(pColormap);

-

-  /*

-   * 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 ("winDestroyColormapShadowGDI - 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 device context */

-      SelectPalette (pScreenPriv->hdcScreen,

-		     GetStockObject (DEFAULT_PALETTE),

-		     FALSE);

-

-      /* Clear our private installed colormap pointer */

-      pScreenPriv->pcmapInstalled = NULL;

-    }

-  

-  /* Try to delete the logical palette */

-  if (DeleteObject (pCmapPriv->hPalette) == 0)

-    {

-      ErrorF ("winDestroyColormap - DeleteObject () failed\n");

-      return FALSE;

-    }

-  

-  /* Invalidate the colormap privates */

-  pCmapPriv->hPalette = NULL;

-

-  return TRUE;

-}

-

-

-/*

- * Set engine specific funtions

- */

-

-Bool

-winSetEngineFunctionsShadowGDI (ScreenPtr pScreen)

-{

-  winScreenPriv(pScreen);

-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

-  

-  /* Set our pointers */

-  pScreenPriv->pwinAllocateFB = winAllocateFBShadowGDI;

-  pScreenPriv->pwinFreeFB = winFreeFBShadowGDI;

-  pScreenPriv->pwinShadowUpdate = winShadowUpdateGDI;

-  pScreenPriv->pwinInitScreen = winInitScreenShadowGDI;

-  pScreenPriv->pwinCloseScreen = winCloseScreenShadowGDI;

-  pScreenPriv->pwinInitVisuals = winInitVisualsShadowGDI;

-  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowGDI;

-  if (pScreenInfo->fFullScreen)

-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;

-  else

-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;

-  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;

-  pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowGDI;

-  pScreenPriv->pwinActivateApp = winActivateAppShadowGDI;

-  pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowGDI;

-  pScreenPriv->pwinRealizeInstalledPalette = 

-    winRealizeInstalledPaletteShadowGDI;

-  pScreenPriv->pwinInstallColormap = winInstallColormapShadowGDI;

-  pScreenPriv->pwinStoreColors = winStoreColorsShadowGDI;

-  pScreenPriv->pwinCreateColormap = winCreateColormapShadowGDI;

-  pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowGDI;

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

-  pScreenPriv->pwinCreatePrimarySurface

-    = (winCreatePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;

-  pScreenPriv->pwinReleasePrimarySurface

-    = (winReleasePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;

-#ifdef XWIN_MULTIWINDOW

-  pScreenPriv->pwinFinishCreateWindowsWindow =

-    (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;

-#endif

-

-  return TRUE;

-}

+/*
+ *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from Harold L Hunt II.
+ *
+ * Authors:	Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+
+/*
+ * Local function prototypes
+ */
+
+#ifdef XWIN_MULTIWINDOW
+static wBOOL CALLBACK
+winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam);
+
+static wBOOL CALLBACK
+winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam);
+#endif
+
+static Bool
+winAllocateFBShadowGDI (ScreenPtr pScreen);
+
+static void
+winShadowUpdateGDI (ScreenPtr pScreen, 
+		    shadowBufPtr pBuf);
+
+static Bool
+winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen);
+
+static Bool
+winInitVisualsShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winAdjustVideoModeShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winBltExposedRegionsShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winActivateAppShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winRedrawScreenShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winInstallColormapShadowGDI (ColormapPtr pColormap);
+
+static Bool
+winStoreColorsShadowGDI (ColormapPtr pmap, 
+			 int ndef,
+			 xColorItem *pdefs);
+
+static Bool
+winCreateColormapShadowGDI (ColormapPtr pColormap);
+
+static Bool
+winDestroyColormapShadowGDI (ColormapPtr pColormap);
+
+
+/*
+ * Internal function to get the DIB format that is compatible with the screen
+ */
+
+static
+Bool
+winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih)
+{
+  winScreenPriv(pScreen);
+  HBITMAP		hbmp;
+#ifdef WINDBG
+  LPDWORD		pdw = NULL;
+#endif
+  
+  /* Create a memory bitmap compatible with the screen */
+  hbmp = CreateCompatibleBitmap (pScreenPriv->hdcScreen, 1, 1);
+  if (hbmp == NULL)
+    {
+      ErrorF ("winQueryScreenDIBFormat - CreateCompatibleBitmap failed\n");
+      return FALSE;
+    }
+  
+  /* Initialize our bitmap info header */
+  ZeroMemory (pbmih, sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD));
+  pbmih->biSize = sizeof (BITMAPINFOHEADER);
+
+  /* Get the biBitCount */
+  if (!GetDIBits (pScreenPriv->hdcScreen,
+		  hbmp,
+		  0, 1,
+		  NULL,
+		  (BITMAPINFO*) pbmih,
+		  DIB_RGB_COLORS))
+    {
+      ErrorF ("winQueryScreenDIBFormat - First call to GetDIBits failed\n");
+      DeleteObject (hbmp);
+      return FALSE;
+    }
+
+#ifdef WINDBG
+  /* Get a pointer to bitfields */
+  pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
+
+  winDebug ("winQueryScreenDIBFormat - First call masks: %08x %08x %08x\n",
+	  pdw[0], pdw[1], pdw[2]);
+#endif
+
+  /* Get optimal color table, or the optimal bitfields */
+  if (!GetDIBits (pScreenPriv->hdcScreen,
+		  hbmp,
+		  0, 1,
+		  NULL,
+		  (BITMAPINFO*)pbmih,
+		  DIB_RGB_COLORS))
+    {
+      ErrorF ("winQueryScreenDIBFormat - Second call to GetDIBits "
+	      "failed\n");
+      DeleteObject (hbmp);
+      return FALSE;
+    }
+
+  /* Free memory */
+  DeleteObject (hbmp);
+  
+  return TRUE;
+}
+
+
+/*
+ * Internal function to determine the GDI bits per rgb and bit masks
+ */
+
+static
+Bool
+winQueryRGBBitsAndMasks (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  BITMAPINFOHEADER	*pbmih = NULL;
+  Bool			fReturn = TRUE;
+  LPDWORD		pdw = NULL;
+  DWORD			dwRedBits, dwGreenBits, dwBlueBits;
+
+  /* Color masks for 8 bpp are standardized */
+  if (GetDeviceCaps (pScreenPriv->hdcScreen, RASTERCAPS) & RC_PALETTE)
+    {
+      /* 
+       * RGB BPP for 8 bit palletes is always 8
+       * and the color masks are always 0.
+       */
+      pScreenPriv->dwBitsPerRGB = 8;
+      pScreenPriv->dwRedMask = 0x0L;
+      pScreenPriv->dwGreenMask = 0x0L;
+      pScreenPriv->dwBlueMask = 0x0L;
+      return TRUE;
+    }
+
+  /* Color masks for 24 bpp are standardized */
+  if (GetDeviceCaps (pScreenPriv->hdcScreen, PLANES)
+      * GetDeviceCaps (pScreenPriv->hdcScreen, BITSPIXEL) == 24)
+    {
+      winDebug ("winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) "
+	      "returned 24 for the screen.  Using default 24bpp masks.\n");
+
+      /* 8 bits per primary color */
+      pScreenPriv->dwBitsPerRGB = 8;
+
+      /* Set screen privates masks */
+      pScreenPriv->dwRedMask = WIN_24BPP_MASK_RED;
+      pScreenPriv->dwGreenMask = WIN_24BPP_MASK_GREEN;
+      pScreenPriv->dwBlueMask = WIN_24BPP_MASK_BLUE;
+      
+      return TRUE;
+    }
+
+  /* Allocate a bitmap header and color table */
+  pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)
+				      + 256  * sizeof (RGBQUAD));
+  if (pbmih == NULL)
+    {
+      ErrorF ("winQueryRGBBitsAndMasks - malloc failed\n");
+      return FALSE;
+    }
+
+  /* Get screen description */
+  if (winQueryScreenDIBFormat (pScreen, pbmih))
+    {
+      /* Get a pointer to bitfields */
+      pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
+      
+#ifdef WINDBG
+      winDebug ("%s - Masks: %08x %08x %08x\n", __FUNCTION__,
+	      pdw[0], pdw[1], pdw[2]);
+      winDebug ("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__,
+              pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, pbmih->biPlanes);
+      winDebug ("%s - Compression: %d %s\n", __FUNCTION__,
+              pbmih->biCompression,
+              (pbmih->biCompression == BI_RGB?"(BI_RGB)":
+               (pbmih->biCompression == BI_RLE8?"(BI_RLE8)":
+                (pbmih->biCompression == BI_RLE4?"(BI_RLE4)":
+                 (pbmih->biCompression == BI_BITFIELDS?"(BI_BITFIELDS)":""
+                 )))));
+#endif
+
+      /* Handle BI_RGB case, which is returned by Wine */
+      if (pbmih->biCompression == BI_RGB)
+        {
+	  dwRedBits = 5;
+	  dwGreenBits = 5;
+	  dwBlueBits = 5;
+	  
+	  pScreenPriv->dwBitsPerRGB = 5;
+	  
+	  /* Set screen privates masks */
+	  pScreenPriv->dwRedMask = 0x7c00;
+	  pScreenPriv->dwGreenMask = 0x03e0;
+	  pScreenPriv->dwBlueMask = 0x001f;
+        }
+      else 
+        {
+          /* Count the number of bits in each mask */
+          dwRedBits = winCountBits (pdw[0]);
+          dwGreenBits = winCountBits (pdw[1]);
+          dwBlueBits = winCountBits (pdw[2]);
+
+	  /* Find maximum bits per red, green, blue */
+	  if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
+	    pScreenPriv->dwBitsPerRGB = dwRedBits;
+	  else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
+	    pScreenPriv->dwBitsPerRGB = dwGreenBits;
+	  else
+	    pScreenPriv->dwBitsPerRGB = dwBlueBits;
+
+	  /* Set screen privates masks */
+	  pScreenPriv->dwRedMask = pdw[0];
+	  pScreenPriv->dwGreenMask = pdw[1];
+	  pScreenPriv->dwBlueMask = pdw[2];
+	}
+    }
+  else
+    {
+      ErrorF ("winQueryRGBBitsAndMasks - winQueryScreenDIBFormat failed\n");
+      free (pbmih);
+      fReturn = FALSE;
+    }
+
+  /* Free memory */
+  free (pbmih);
+
+  return fReturn;
+}
+
+
+#ifdef XWIN_MULTIWINDOW
+/*
+ * Redraw all ---?
+ */
+
+static wBOOL CALLBACK
+winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam)
+{
+  if (hwnd == (HWND)lParam)
+    return TRUE;  
+  InvalidateRect (hwnd, NULL, FALSE);
+  UpdateWindow (hwnd);
+  return TRUE;
+}
+
+static wBOOL CALLBACK
+winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam)
+{
+  BoxPtr pDamage = (BoxPtr)lParam;
+  RECT rcClient, rcDamage, rcRedraw;
+  POINT topLeft, bottomRight;
+  
+  if (IsIconic (hwnd))
+    return TRUE; /* Don't care minimized windows */
+  
+  /* Convert the damaged area from Screen coords to Client coords */
+  topLeft.x = pDamage->x1; topLeft.y = pDamage->y1;
+  bottomRight.x = pDamage->x2; bottomRight.y = pDamage->y2;
+  topLeft.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
+  bottomRight.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
+  topLeft.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
+  bottomRight.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
+  ScreenToClient (hwnd, &topLeft);
+  ScreenToClient (hwnd, &bottomRight);
+  SetRect (&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);
+
+  GetClientRect (hwnd, &rcClient);
+
+  if (IntersectRect (&rcRedraw, &rcClient, &rcDamage))
+    {
+      InvalidateRect (hwnd, &rcRedraw, FALSE);
+      UpdateWindow (hwnd);
+    }
+  return TRUE;
+}
+#endif
+
+
+/*
+ * Allocate a DIB for the shadow framebuffer GDI server
+ */
+
+static Bool
+winAllocateFBShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  DIBSECTION		dibsection;
+  Bool			fReturn = TRUE;
+
+  /* Describe shadow bitmap to be created */
+  pScreenPriv->pbmih->biWidth = pScreenInfo->dwWidth;
+  pScreenPriv->pbmih->biHeight = -pScreenInfo->dwHeight;
+
+  winDebug ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d "
+	  "depth: %d\n",
+	  (int) pScreenPriv->pbmih->biWidth, (int) -pScreenPriv->pbmih->biHeight, pScreenPriv->pbmih->biBitCount);
+
+  /* Create a DI shadow bitmap with a bit pointer */
+  pScreenPriv->hbmpShadow = CreateDIBSection (pScreenPriv->hdcScreen,
+					      (BITMAPINFO *) pScreenPriv->pbmih,
+					      DIB_RGB_COLORS,
+					      (VOID**) &pScreenInfo->pfb,
+					      NULL,
+					      0);
+  if (pScreenPriv->hbmpShadow == NULL || pScreenInfo->pfb == NULL)
+    {
+      winW32Error ("winAllocateFBShadowGDI - CreateDIBSection failed:");
+      return FALSE;
+    }
+  else
+    {
+      winDebug ("winAllocateFBShadowGDI - Shadow buffer allocated\n");
+    }
+
+  /* Get information about the bitmap that was allocated */
+  GetObject (pScreenPriv->hbmpShadow,
+	     sizeof (dibsection),
+	     &dibsection);
+
+  /* Print information about bitmap allocated */
+  winDebug ("winAllocateFBShadowGDI - Dibsection width: %d height: %d "
+	  "depth: %d size image: %d\n",
+	  (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight,
+	  dibsection.dsBmih.biBitCount,
+	  (int) dibsection.dsBmih.biSizeImage);
+
+  /* Select the shadow bitmap into the shadow DC */
+  SelectObject (pScreenPriv->hdcShadow,
+		pScreenPriv->hbmpShadow);
+
+  winDebug ("winAllocateFBShadowGDI - Attempting a shadow blit\n");
+
+  /* Do a test blit from the shadow to the screen, I think */
+  fReturn = BitBlt (pScreenPriv->hdcScreen,
+		    0, 0,
+		    pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+		    pScreenPriv->hdcShadow,
+		    0, 0,
+		    SRCCOPY);
+  if (fReturn)
+    {
+      winDebug ("winAllocateFBShadowGDI - Shadow blit success\n");
+    }
+  else
+    {
+      winW32Error ("winAllocateFBShadowGDI - Shadow blit failure\n");
+      /* ago: ignore this error. The blit fails with wine, but does not 
+       * cause any problems later. */
+
+      fReturn = TRUE;
+    }
+
+  /* Look for height weirdness */
+  if (dibsection.dsBmih.biHeight < 0)
+    {
+      dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight;
+    }
+
+  /* Set screeninfo stride */
+  pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage
+			    / dibsection.dsBmih.biHeight)
+			   * 8) / pScreenInfo->dwBPP;
+
+  winDebug ("winAllocateFBShadowGDI - Created shadow stride: %d\n",
+	  (int) pScreenInfo->dwStride);
+
+#ifdef XWIN_MULTIWINDOW
+  /* Redraw all windows */
+  if (pScreenInfo->fMultiWindow)
+    EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+  return fReturn;
+}
+
+static void
+winFreeFBShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+  /* Free the shadow bitmap */
+  DeleteObject (pScreenPriv->hbmpShadow);
+
+  /* Invalidate the ScreenInfo's fb pointer */
+  pScreenInfo->pfb = NULL;
+}
+
+/*
+ * Blit the damaged regions of the shadow fb to the screen
+ */
+
+static void
+winShadowUpdateGDI (ScreenPtr pScreen, 
+		    shadowBufPtr pBuf)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  RegionPtr		damage = shadowDamage(pBuf);
+  DWORD			dwBox = RegionNumRects (damage);
+  BoxPtr		pBox = RegionRects (damage);
+  int			x, y, w, h;
+  HRGN			hrgnTemp = NULL, hrgnCombined = NULL;
+#ifdef XWIN_UPDATESTATS
+  static DWORD		s_dwNonUnitRegions = 0;
+  static DWORD		s_dwTotalUpdates = 0;
+  static DWORD		s_dwTotalBoxes = 0;
+#endif
+  BoxPtr		pBoxExtents = RegionExtents(damage);
+
+  /*
+   * 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;
+
+#ifdef XWIN_UPDATESTATS
+  ++s_dwTotalUpdates;
+  s_dwTotalBoxes += dwBox;
+
+  if (dwBox != 1)
+    {
+      ++s_dwNonUnitRegions;
+      winDebug ("winShadowUpdatGDI - dwBox: %d\n", dwBox);
+    }
+  
+  if ((s_dwTotalUpdates % 100) == 0)
+  {
+    winDebug ("winShadowUpdateGDI - %d%% non-unity regions, avg boxes: %d "
+	    "nu: %d tu: %d\n",
+	    (s_dwNonUnitRegions * 100) / s_dwTotalUpdates,
+	    s_dwTotalBoxes / s_dwTotalUpdates,
+	    s_dwNonUnitRegions, s_dwTotalUpdates);
+  }
+#endif /* XWIN_UPDATESTATS */
+
+  /*
+   * 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->fMultiWindow &&
+      (pScreenInfo->dwClipUpdatesNBoxes == 0 ||
+      dwBox < pScreenInfo->dwClipUpdatesNBoxes))
+    {
+      /* Loop through all boxes in the damaged region */
+      while (dwBox--)
+	{
+	  /*
+	   * Calculate x offset, y offset, width, and height for
+	   * current damage box
+	   */
+	  x = pBox->x1;
+	  y = pBox->y1;
+	  w = pBox->x2 - pBox->x1;
+	  h = pBox->y2 - pBox->y1;
+	  
+	  BitBlt (pScreenPriv->hdcScreen,
+		  x, y,
+		  w, h,
+		  pScreenPriv->hdcShadow,
+		  x, y,
+		  SRCCOPY);
+	  
+	  /* Get a pointer to the next box */
+	  ++pBox;
+	}
+    }
+  else if (!pScreenInfo->fMultiWindow)
+    {
+      /* 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;
+      
+      /*
+       * Blit the shadow buffer to the screen,
+       * constrained to the clipping region.
+       */
+      BitBlt (pScreenPriv->hdcScreen,
+	      pBoxExtents->x1, pBoxExtents->y1,
+	      pBoxExtents->x2 - pBoxExtents->x1,
+	      pBoxExtents->y2 - pBoxExtents->y1,
+	      pScreenPriv->hdcShadow,
+	      pBoxExtents->x1, pBoxExtents->y1,
+	      SRCCOPY);
+
+      /* Reset the clip region */
+      SelectClipRgn (pScreenPriv->hdcScreen, NULL);
+    }
+
+#ifdef XWIN_MULTIWINDOW
+  /* Redraw all multiwindow windows */
+  if (pScreenInfo->fMultiWindow)
+    EnumThreadWindows (g_dwCurrentThreadID,
+		       winRedrawDamagedWindowShadowGDI,
+		       (LPARAM)pBoxExtents);
+#endif
+}
+
+
+static Bool
+winInitScreenShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+
+  /* Get device contexts for the screen and shadow bitmap */
+  pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
+  pScreenPriv->hdcShadow = CreateCompatibleDC (pScreenPriv->hdcScreen);
+
+  /* Allocate bitmap info header */
+  pScreenPriv->pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)
+                                                   + 256 * sizeof (RGBQUAD));
+  if (pScreenPriv->pbmih == NULL)
+    {
+      ErrorF ("winInitScreenShadowGDI - malloc () failed\n");
+      return FALSE;
+    }
+
+  /* Query the screen format */
+  if (!winQueryScreenDIBFormat (pScreen, pScreenPriv->pbmih))
+    {
+      ErrorF ("winInitScreenShadowGDI - winQueryScreenDIBFormat failed\n");
+      return FALSE;
+    }
+
+  /* Determine our color masks */
+  if (!winQueryRGBBitsAndMasks (pScreen))
+    {
+      ErrorF ("winInitScreenShadowGDI - winQueryRGBBitsAndMasks failed\n");
+      return FALSE;
+    }
+
+  return winAllocateFBShadowGDI(pScreen);
+}
+
+/* See Porting Layer Definition - p. 33 */
+/*
+ * We wrap whatever CloseScreen procedure was specified by fb;
+ * a pointer to said procedure is stored in our privates.
+ */
+
+static Bool
+winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  Bool			fReturn;
+
+  winDebug ("winCloseScreenShadowGDI - 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);
+
+  /* Delete the window property */
+  RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
+
+  /* Free the shadow DC; which allows the bitmap to be freed */
+  DeleteDC (pScreenPriv->hdcShadow);
+
+  winFreeFBShadowGDI(pScreen);
+
+  /* Free the screen DC */
+  ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
+
+  /* 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
+
+  /* Invalidate 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
+winInitVisualsShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+
+  /* Display debugging information */
+  winDebug ("winInitVisualsShadowGDI - 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 ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
+		  "failed\n");
+	  return FALSE;
+	}
+
+#ifdef XWIN_EMULATEPSEUDO
+      if (!pScreenInfo->fEmulatePseudo)
+	break;
+
+      /* Setup a pseudocolor visual */
+      if (!miSetVisualTypesAndMasks (8,
+				     PseudoColorMask,
+				     8,
+				     -1,
+				     0,
+				     0,
+				     0))
+	{
+	  ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
+		  "failed for PseudoColor\n");
+	  return FALSE;
+	}
+#endif
+      break;
+
+    case 8:
+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
+				     PseudoColorMask,
+				     pScreenPriv->dwBitsPerRGB,
+				     PseudoColor,
+				     pScreenPriv->dwRedMask,
+				     pScreenPriv->dwGreenMask,
+				     pScreenPriv->dwBlueMask))
+	{
+	  ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
+		  "failed\n");
+	  return FALSE;
+	}
+      break;
+
+    default:
+      ErrorF ("winInitVisualsShadowGDI - Unknown screen depth\n");
+      return FALSE;
+    }
+
+  winDebug ("winInitVisualsShadowGDI - Returning\n");
+
+  return TRUE;
+}
+
+
+/*
+ * Adjust the proposed video mode
+ */
+
+static Bool
+winAdjustVideoModeShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  HDC			hdc;
+  DWORD			dwBPP;
+  
+  hdc = GetDC (NULL);
+
+  /* We're in serious trouble if we can't get a DC */
+  if (hdc == NULL)
+    {
+      ErrorF ("winAdjustVideoModeShadowGDI - GetDC () failed\n");
+      return FALSE;
+    }
+
+  /* Query GDI for current display depth */
+  dwBPP = GetDeviceCaps (hdc, BITSPIXEL);
+
+  /* GDI cannot change the screen depth, so always use GDI's depth */
+  pScreenInfo->dwBPP = dwBPP;
+
+  /* Release our DC */
+  ReleaseDC (NULL, hdc);
+  hdc = NULL;
+
+  return TRUE;
+}
+
+
+/*
+ * Blt exposed regions to the screen
+ */
+
+static Bool
+winBltExposedRegionsShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  winPrivCmapPtr	pCmapPriv = NULL;
+  HDC			hdcUpdate;
+  PAINTSTRUCT		ps;
+
+  /* BeginPaint gives us an hdc that clips to the invalidated region */
+  hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);
+
+  /* Realize the palette, if we have one */
+  if (pScreenPriv->pcmapInstalled != NULL)
+    {
+      pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);
+      
+      SelectPalette (hdcUpdate, pCmapPriv->hPalette, FALSE);
+      RealizePalette (hdcUpdate);
+    }
+
+  /* Our BitBlt will be clipped to the invalidated region */
+  BitBlt (hdcUpdate,
+	  0, 0,
+	  pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+	  pScreenPriv->hdcShadow,
+	  0, 0,
+	  SRCCOPY);
+
+  /* EndPaint frees the DC */
+  EndPaint (pScreenPriv->hwndScreen, &ps);
+
+#ifdef XWIN_MULTIWINDOW
+  /* Redraw all windows */
+  if (pScreenInfo->fMultiWindow)
+    EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 
+            (LPARAM)pScreenPriv->hwndScreen);
+#endif
+
+  return TRUE;
+}
+
+
+/*
+ * Do any engine-specific appliation-activation processing
+ */
+
+static Bool
+winActivateAppShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+
+  /*
+   * 2004/04/12 - Harold - We perform the restoring or minimizing
+   * manually for ShadowGDI in fullscreen modes so that this engine
+   * will perform just like ShadowDD and ShadowDDNL in fullscreen mode;
+   * if we do not do this then our fullscreen window will appear in the
+   * z-order when it is deactivated and it can be uncovered by resizing
+   * or minimizing another window that is on top of it, which is not how
+   * the DirectDraw engines work.  Therefore we keep this code here to
+   * make sure that all engines work the same in fullscreen mode.
+   */
+
+  /*
+   * Are we active?
+   * Are we fullscreen?
+   */
+  if (pScreenPriv->fActive
+      && pScreenInfo->fFullScreen)
+    {
+      /*
+       * Activating, attempt to bring our window 
+       * to the top of the display
+       */
+      ShowWindow (pScreenPriv->hwndScreen, SW_RESTORE);
+    }
+  else if (!pScreenPriv->fActive
+	   && pScreenInfo->fFullScreen)
+    {
+      /*
+       * Deactivating, stuff our window onto the
+       * task bar.
+       */
+      ShowWindow (pScreenPriv->hwndScreen, SW_MINIMIZE);
+    }
+
+  return TRUE;
+}
+
+
+/*
+ * Reblit the shadow framebuffer to the screen.
+ */
+
+static Bool
+winRedrawScreenShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+
+  /* Redraw the whole window, to take account for the new colors */
+  BitBlt (pScreenPriv->hdcScreen,
+	  0, 0,
+	  pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+	  pScreenPriv->hdcShadow,
+	  0, 0,
+	  SRCCOPY);
+
+#ifdef XWIN_MULTIWINDOW
+  /* Redraw all windows */
+  if (pScreenInfo->fMultiWindow)
+    EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+  return TRUE;
+}
+
+
+
+/*
+ * Realize the currently installed colormap
+ */
+
+static Bool
+winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winPrivCmapPtr	pCmapPriv = NULL;
+
+  winDebug ("winRealizeInstalledPaletteShadowGDI\n");
+
+  /* Don't do anything if there is not a colormap */
+  if (pScreenPriv->pcmapInstalled == NULL)
+    {
+      winDebug ("winRealizeInstalledPaletteShadowGDI - No colormap "
+	      "installed\n");
+      return TRUE;
+    }
+
+  pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);
+  
+  /* Realize our palette for the screen */
+  if (RealizePalette (pScreenPriv->hdcScreen) == GDI_ERROR)
+    {
+      ErrorF ("winRealizeInstalledPaletteShadowGDI - RealizePalette () "
+	      "failed\n");
+      return FALSE;
+    }
+  
+  /* Set the DIB color table */
+  if (SetDIBColorTable (pScreenPriv->hdcShadow,
+			0,
+			WIN_NUM_PALETTE_ENTRIES,
+			pCmapPriv->rgbColors) == 0)
+    {
+      ErrorF ("winRealizeInstalledPaletteShadowGDI - SetDIBColorTable () "
+	      "failed\n");
+      return FALSE;
+    }
+  
+  return TRUE;
+}
+
+
+/*
+ * Install the specified colormap
+ */
+
+static Bool
+winInstallColormapShadowGDI (ColormapPtr pColormap)
+{
+  ScreenPtr		pScreen = pColormap->pScreen;
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  winCmapPriv(pColormap);
+
+  /*
+   * Tell Windows to install the new colormap
+   */
+  if (SelectPalette (pScreenPriv->hdcScreen,
+		     pCmapPriv->hPalette,
+		     FALSE) == NULL)
+    {
+      ErrorF ("winInstallColormapShadowGDI - SelectPalette () failed\n");
+      return FALSE;
+    }
+      
+  /* Realize the palette */
+  if (GDI_ERROR == RealizePalette (pScreenPriv->hdcScreen))
+    {
+      ErrorF ("winInstallColormapShadowGDI - RealizePalette () failed\n");
+      return FALSE;
+    }
+
+  /* Set the DIB color table */
+  if (SetDIBColorTable (pScreenPriv->hdcShadow,
+			0,
+			WIN_NUM_PALETTE_ENTRIES,
+			pCmapPriv->rgbColors) == 0)
+    {
+      ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");
+      return FALSE;
+    }
+
+  /* Redraw the whole window, to take account for the new colors */
+  BitBlt (pScreenPriv->hdcScreen,
+	  0, 0,
+	  pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+	  pScreenPriv->hdcShadow,
+	  0, 0,
+	  SRCCOPY);
+
+  /* Save a pointer to the newly installed colormap */
+  pScreenPriv->pcmapInstalled = pColormap;
+
+#ifdef XWIN_MULTIWINDOW
+  /* Redraw all windows */
+  if (pScreenInfo->fMultiWindow)
+    EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+  return TRUE;
+}
+
+
+/*
+ * Store the specified colors in the specified colormap
+ */
+
+static Bool
+winStoreColorsShadowGDI (ColormapPtr pColormap,
+			 int ndef,
+			 xColorItem *pdefs)
+{
+  ScreenPtr		pScreen = pColormap->pScreen;
+  winScreenPriv(pScreen);
+  winCmapPriv(pColormap);
+  ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
+  
+  /* Put the X colormap entries into the Windows logical palette */
+  if (SetPaletteEntries (pCmapPriv->hPalette,
+			 pdefs[0].pixel,
+			 ndef,
+			 pCmapPriv->peColors + pdefs[0].pixel) == 0)
+    {
+      ErrorF ("winStoreColorsShadowGDI - SetPaletteEntries () failed\n");
+      return FALSE;
+    }
+
+  /* Don't install the Windows palette if the colormap is not installed */
+  if (pColormap != curpmap)
+    {
+      return TRUE;
+    }
+
+  /* Try to install the newly modified colormap */
+  if (!winInstallColormapShadowGDI (pColormap))
+    {
+      ErrorF ("winInstallColormapShadowGDI - winInstallColormapShadowGDI "
+	      "failed\n");
+      return FALSE;
+    }
+
+#if 0
+  /* Tell Windows that the palette has changed */
+  RealizePalette (pScreenPriv->hdcScreen);
+  
+  /* Set the DIB color table */
+  if (SetDIBColorTable (pScreenPriv->hdcShadow,
+			pdefs[0].pixel,
+			ndef,
+			pCmapPriv->rgbColors + pdefs[0].pixel) == 0)
+    {
+      ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");
+      return FALSE;
+    }
+
+  /* Save a pointer to the newly installed colormap */
+  pScreenPriv->pcmapInstalled = pColormap;
+#endif
+
+  return TRUE;
+}
+
+
+/*
+ * Colormap initialization procedure
+ */
+
+static Bool
+winCreateColormapShadowGDI (ColormapPtr pColormap)
+{
+  LPLOGPALETTE		lpPaletteNew = NULL;
+  DWORD			dwEntriesMax;
+  VisualPtr		pVisual;
+  HPALETTE		hpalNew = NULL;
+  winCmapPriv(pColormap);
+
+  /* Get a pointer to the visual that the colormap belongs to */
+  pVisual = pColormap->pVisual;
+
+  /* Get the maximum number of palette entries for this visual */
+  dwEntriesMax = pVisual->ColormapEntries;
+
+  /* Allocate a Windows logical color palette with max entries */
+  lpPaletteNew = malloc (sizeof (LOGPALETTE)
+			 + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));
+  if (lpPaletteNew == NULL)
+    {
+      ErrorF ("winCreateColormapShadowGDI - Couldn't allocate palette "
+	      "with %d entries\n",
+	      (int) dwEntriesMax);
+      return FALSE;
+    }
+
+  /* Zero out the colormap */
+  ZeroMemory (lpPaletteNew, sizeof (LOGPALETTE)
+	      + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));
+  
+  /* Set the logical palette structure */
+  lpPaletteNew->palVersion = 0x0300;
+  lpPaletteNew->palNumEntries = dwEntriesMax;
+
+  /* Tell Windows to create the palette */
+  hpalNew = CreatePalette (lpPaletteNew);
+  if (hpalNew == NULL)
+    {
+      ErrorF ("winCreateColormapShadowGDI - CreatePalette () failed\n");
+      free (lpPaletteNew);
+      return FALSE;
+    }
+
+  /* Save the Windows logical palette handle in the X colormaps' privates */
+  pCmapPriv->hPalette = hpalNew;
+
+  /* Free the palette initialization memory */
+  free (lpPaletteNew);
+
+  return TRUE;
+}
+
+
+/*
+ * Colormap destruction procedure
+ */
+
+static Bool
+winDestroyColormapShadowGDI (ColormapPtr pColormap)
+{
+  winScreenPriv(pColormap->pScreen);
+  winCmapPriv(pColormap);
+
+  /*
+   * 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 ("winDestroyColormapShadowGDI - 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 device context */
+      SelectPalette (pScreenPriv->hdcScreen,
+		     GetStockObject (DEFAULT_PALETTE),
+		     FALSE);
+
+      /* Clear our private installed colormap pointer */
+      pScreenPriv->pcmapInstalled = NULL;
+    }
+  
+  /* Try to delete the logical palette */
+  if (DeleteObject (pCmapPriv->hPalette) == 0)
+    {
+      ErrorF ("winDestroyColormap - DeleteObject () failed\n");
+      return FALSE;
+    }
+  
+  /* Invalidate the colormap privates */
+  pCmapPriv->hPalette = NULL;
+
+  return TRUE;
+}
+
+
+/*
+ * Set engine specific funtions
+ */
+
+Bool
+winSetEngineFunctionsShadowGDI (ScreenPtr pScreen)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  
+  /* Set our pointers */
+  pScreenPriv->pwinAllocateFB = winAllocateFBShadowGDI;
+  pScreenPriv->pwinFreeFB = winFreeFBShadowGDI;
+  pScreenPriv->pwinShadowUpdate = winShadowUpdateGDI;
+  pScreenPriv->pwinInitScreen = winInitScreenShadowGDI;
+  pScreenPriv->pwinCloseScreen = winCloseScreenShadowGDI;
+  pScreenPriv->pwinInitVisuals = winInitVisualsShadowGDI;
+  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowGDI;
+  if (pScreenInfo->fFullScreen)
+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
+  else
+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
+  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
+  pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowGDI;
+  pScreenPriv->pwinActivateApp = winActivateAppShadowGDI;
+  pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowGDI;
+  pScreenPriv->pwinRealizeInstalledPalette = 
+    winRealizeInstalledPaletteShadowGDI;
+  pScreenPriv->pwinInstallColormap = winInstallColormapShadowGDI;
+  pScreenPriv->pwinStoreColors = winStoreColorsShadowGDI;
+  pScreenPriv->pwinCreateColormap = winCreateColormapShadowGDI;
+  pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowGDI;
+  pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;
+  pScreenPriv->pwinCreatePrimarySurface
+    = (winCreatePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
+  pScreenPriv->pwinReleasePrimarySurface
+    = (winReleasePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
+#ifdef XWIN_MULTIWINDOW
+  pScreenPriv->pwinFinishCreateWindowsWindow =
+    (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
+#endif
+
+  return TRUE;
+}