svn merge ^/branches/released .

1 files changed, 1238 insertions, 1237 deletions

diff --git a/xorg-server/hw/xwin/winshadgdi.c b/xorg-server/hw/xwin/winshadgdi.c
index 7d53d4969..bcb2051fc 100644
--- a/xorg-server/hw/xwin/winshadgdi.c
+++ b/xorg-server/hw/xwin/winshadgdi.c
@@ -1,1237 +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);
-  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;

+}