xserver update 19/10/2010

1 files changed, 676 insertions, 684 deletions

diff --git a/xorg-server/hw/xwin/winpfbdd.c b/xorg-server/hw/xwin/winpfbdd.c
index 13fc1058d..840a839f0 100644
--- a/xorg-server/hw/xwin/winpfbdd.c
+++ b/xorg-server/hw/xwin/winpfbdd.c
@@ -1,684 +1,676 @@
-/*
- *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
- *
- *Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- *"Software"), to deal in the Software without restriction, including
- *without limitation the rights to use, copy, modify, merge, publish,
- *distribute, sublicense, and/or sell copies of the Software, and to
- *permit persons to whom the Software is furnished to do so, subject to
- *the following conditions:
- *
- *The above copyright notice and this permission notice shall be
- *included in all copies or substantial portions of the Software.
- *
- *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
- *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- *Except as contained in this notice, the name of the XFree86 Project
- *shall not be used in advertising or otherwise to promote the sale, use
- *or other dealings in this Software without prior written authorization
- *from the XFree86 Project.
- *
- * Authors:	Dakshinamurthy Karra
- *		Suhaib M Siddiqi
- *		Peter Busch
- *		Harold L Hunt II
- */
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-#include "win.h"
-
-
-/*
- * External symbols
- */
-
-extern const GUID		_IID_IDirectDraw2;
-extern HWND			g_hDlgExit;
-
-
-/*
- * Local function prototypes
- */
-
-static Bool
-winAllocateFBPrimaryDD (ScreenPtr pScreen);
-
-static Bool
-winCloseScreenPrimaryDD (int nIndex, ScreenPtr pScreen);
-
-static Bool
-winInitVisualsPrimaryDD (ScreenPtr pScreen);
-
-static Bool
-winAdjustVideoModePrimaryDD (ScreenPtr pScreen);
-
-static Bool
-winActivateAppPrimaryDD (ScreenPtr pScreen);
-
-static Bool
-winHotKeyAltTabPrimaryDD (ScreenPtr pScreen);
-
-
-/*
- * Create a DirectDraw primary surface 
- */
-
-static Bool
-winAllocateFBPrimaryDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;  
-  HRESULT		ddrval = DD_OK;
-  DDSURFACEDESC		ddsd;
-  DDSURFACEDESC		*pddsdPrimary = NULL;
-  DDSURFACEDESC		*pddsdOffscreen = NULL;
-  RECT			rcClient;
-
-  ErrorF ("winAllocateFBPrimaryDD\n");
-
-  /* Get client area location in screen coords */
-  GetClientRect (pScreenPriv->hwndScreen, &rcClient);
-  MapWindowPoints (pScreenPriv->hwndScreen,
-		   HWND_DESKTOP,
-		   (LPPOINT)&rcClient, 2);
-
-  /* Create a DirectDraw object, store the address at lpdd */
-  ddrval = (*g_fpDirectDrawCreate) (NULL, &pScreenPriv->pdd, NULL);
-  if (ddrval != DD_OK)
-    FatalError ("winAllocateFBPrimaryDD - Could not start DirectDraw\n");
-  
-  /* Get a DirectDraw2 interface pointer */
-  ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,
-				       &IID_IDirectDraw2,
-				       (LPVOID*) &pScreenPriv->pdd2);
-  if (FAILED (ddrval))
-    {
-      ErrorF ("winAllocateFBShadowDD - Failed DD2 query: %08x\n",
-	      (unsigned int) ddrval);
-      return FALSE;
-    }
-
-
-  ErrorF ("winAllocateFBPrimaryDD - Created and initialized DD\n");
-
-  /* Are we windowed or fullscreen? */
-  if (pScreenInfo->fFullScreen)
-    {
-      /* Full screen mode */
-      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
-						 pScreenPriv->hwndScreen,
-						 DDSCL_FULLSCREEN
-						 | DDSCL_EXCLUSIVE);
-      if (FAILED (ddrval))
-	FatalError ("winAllocateFBPrimaryDD - Could not set "
-		    "cooperative level\n");
-
-      /* Change the video mode to the mode requested */
-      ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,
-					    pScreenInfo->dwWidth,
-					    pScreenInfo->dwHeight,
-					    pScreenInfo->dwBPP,
-					    pScreenInfo->dwRefreshRate,
-					    0);
-       if (FAILED (ddrval))
-	FatalError ("winAllocateFBPrimaryDD - Could not set "
-		    "full screen display mode\n");
-    }
-  else
-    {
-      /* Windowed mode */
-      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
-						 pScreenPriv->hwndScreen,
-						 DDSCL_NORMAL);
-      if (FAILED (ddrval))
-	FatalError ("winAllocateFBPrimaryDD - Could not set "
-		    "cooperative level\n");
-    }
-
-  /* Describe the primary surface */
-  ZeroMemory (&ddsd, sizeof (ddsd));
-  ddsd.dwSize = sizeof (ddsd);
-  ddsd.dwFlags = DDSD_CAPS;
-  ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
-  
-  /* Create the primary surface */
-  ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,
-				       &ddsd,
-				       &pScreenPriv->pddsPrimary,
-				       NULL);
-  if (FAILED (ddrval))
-       FatalError ("winAllocateFBPrimaryDD - Could not create primary "
-		  "surface %08x\n", (unsigned int) ddrval);
-
-  ErrorF ("winAllocateFBPrimaryDD - Created primary\n");
-
-  /* Allocate a DD surface description for our screen privates */
-  pddsdPrimary = pScreenPriv->pddsdPrimary
-    = malloc (sizeof (DDSURFACEDESC));
-  if (pddsdPrimary == NULL)
-    FatalError ("winAllocateFBPrimaryDD - Could not allocate surface "
-		"description memory\n");
-  ZeroMemory (pddsdPrimary, sizeof (*pddsdPrimary));
-  pddsdPrimary->dwSize = sizeof (*pddsdPrimary);
-
-  /* Describe the offscreen surface to be created */
-  /*
-   * NOTE: Do not use a DDSCAPS_VIDEOMEMORY surface,
-   * as drawing, locking, and unlocking take forever
-   * with video memory surfaces.  In addition,
-   * video memory is a somewhat scarce resource,
-   * so you shouldn't be allocating video memory when
-   * you have the option of using system memory instead.
-   */
-  ZeroMemory (&ddsd, sizeof (ddsd));
-  ddsd.dwSize = sizeof (ddsd);
-  ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
-  ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
-  ddsd.dwHeight = pScreenInfo->dwHeight;
-  ddsd.dwWidth = pScreenInfo->dwWidth;
-
-  /* Create the shadow surface */
-  ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,
-				       &ddsd,
-				       &pScreenPriv->pddsOffscreen,
-				       NULL);
-  if (ddrval != DD_OK)
-    FatalError ("winAllocateFBPrimaryDD - Could not create shadow "
-		"surface\n");
-  
-  ErrorF ("winAllocateFBPrimaryDD - Created offscreen\n");
-
-  /* Allocate a DD surface description for our screen privates */
-  pddsdOffscreen = pScreenPriv->pddsdOffscreen
-    = malloc (sizeof (DDSURFACEDESC));
-  if (pddsdOffscreen == NULL)
-    FatalError ("winAllocateFBPrimaryDD - Could not allocate surface "
-		"description memory\n");
-  ZeroMemory (pddsdOffscreen, sizeof (*pddsdOffscreen));
-  pddsdOffscreen->dwSize = sizeof (*pddsdOffscreen);
-
-  ErrorF ("winAllocateFBPrimaryDD - Locking primary\n");
-
-  /* Lock the primary surface */
-  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsPrimary,
-				    pScreenInfo->fFullScreen ? NULL:&rcClient,
-				    pddsdPrimary,
-				    DDLOCK_WAIT,
-				    NULL);
-  if (ddrval != DD_OK || pddsdPrimary->lpSurface == NULL)
-    FatalError ("winAllocateFBPrimaryDD - Could not lock "
-		"primary surface\n");
-
-  ErrorF ("winAllocateFBPrimaryDD - Locked primary\n");
-
-  /* We don't know how to deal with anything other than RGB */
-  if (!(pddsdPrimary->ddpfPixelFormat.dwFlags & DDPF_RGB))
-    FatalError ("winAllocateFBPrimaryDD - Color format other than RGB\n");
-
-  /* Grab the pitch from the surface desc */
-  pScreenInfo->dwStride = (pddsdPrimary->u1.lPitch * 8)
-    / pScreenInfo->dwBPP;
-
-  /* Save the pointer to our surface memory */
-  pScreenInfo->pfb = pddsdPrimary->lpSurface;
-  
-  /* Grab the color depth and masks from the surface description */
-  pScreenPriv->dwRedMask = pddsdPrimary->ddpfPixelFormat.u2.dwRBitMask;
-  pScreenPriv->dwGreenMask = pddsdPrimary->ddpfPixelFormat.u3.dwGBitMask;
-  pScreenPriv->dwBlueMask = pddsdPrimary->ddpfPixelFormat.u4.dwBBitMask;
-
-  ErrorF ("winAllocateFBPrimaryDD - Returning\n");
-
-  return TRUE;
-}
-
-
-/*
- * Call the wrapped CloseScreen function.
- * 
- * Free our resources and private structures.
- */
-
-static Bool
-winCloseScreenPrimaryDD (int nIndex, ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  Bool			fReturn;
-  
-  ErrorF ("winCloseScreenPrimaryDD - 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 offscreen surface, if there is one */
-  if (pScreenPriv->pddsOffscreen)
-    {
-      IDirectDrawSurface2_Unlock (pScreenPriv->pddsOffscreen, NULL);
-      IDirectDrawSurface2_Release (pScreenPriv->pddsOffscreen);
-      pScreenPriv->pddsOffscreen = NULL;
-    }
-
-  /* Release the primary surface, if there is one */
-  if (pScreenPriv->pddsPrimary)
-    {
-      IDirectDrawSurface2_Unlock (pScreenPriv->pddsPrimary, NULL);
-      IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);
-      pScreenPriv->pddsPrimary = NULL;
-    }
-
-  /* Free the DirectDraw object, if there is one */
-  if (pScreenPriv->pdd)
-    {
-      IDirectDraw2_RestoreDisplayMode (pScreenPriv->pdd);
-      IDirectDraw2_Release (pScreenPriv->pdd);
-      pScreenPriv->pdd = NULL;
-    }
-
-  /* Delete tray icon, if we have one */
-  if (!pScreenInfo->fNoTrayIcon)
-    winDeleteNotifyIcon (pScreenPriv);
-
-  /* Free the exit confirmation dialog box, if it exists */
-  if (g_hDlgExit != NULL)
-    {
-      DestroyWindow (g_hDlgExit);
-      g_hDlgExit = NULL;
-    }
-
-  /* Kill our window */
-  if (pScreenPriv->hwndScreen)
-    {
-      DestroyWindow (pScreenPriv->hwndScreen);
-      pScreenPriv->hwndScreen = NULL;
-    }
-
-  /* Kill our screeninfo's pointer to the screen */
-  pScreenInfo->pScreen = NULL;
-
-  /* Invalidate the ScreenInfo's fb pointer */
-  pScreenInfo->pfb = NULL;
-
-  /* Free the screen privates for this screen */
-  free ((pointer) pScreenPriv);
-
-  return fReturn;
-}
-
-
-/*
- * Tell mi what sort of visuals we need.
- * 
- * Generally we only need one visual, as our screen can only
- * handle one format at a time, I believe.  You may want
- * to verify that last sentence.
- */
-
-static Bool
-winInitVisualsPrimaryDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  DWORD			dwRedBits, dwGreenBits, dwBlueBits;
-
-  /* Count the number of ones in each color mask */
-  dwRedBits = winCountBits (pScreenPriv->dwRedMask);
-  dwGreenBits = winCountBits (pScreenPriv->dwGreenMask);
-  dwBlueBits = winCountBits (pScreenPriv->dwBlueMask);
-  
-  /* Store the maximum number of ones in a color mask as the bitsPerRGB */
-  if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
-    pScreenPriv->dwBitsPerRGB = dwRedBits;
-  else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
-    pScreenPriv->dwBitsPerRGB = dwGreenBits;
-  else
-    pScreenPriv->dwBitsPerRGB = dwBlueBits;
-  
-  ErrorF ("winInitVisualsPrimaryDD - Masks: %08x %08x %08x bpRGB: %d\n",
-	  (unsigned int) pScreenPriv->dwRedMask,
-	  (unsigned int) pScreenPriv->dwGreenMask,
-	  (unsigned int) pScreenPriv->dwBlueMask,
-	  (int) pScreenPriv->dwBitsPerRGB);
-
-  /* Create a single visual according to the Windows screen depth */
-  switch (pScreenInfo->dwDepth)
-    {
-    case 24:
-    case 16:
-    case 15:
-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     TrueColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     TrueColor,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsPrimaryDD - " 
-		  "miSetVisualTypesAndMasks failed\n");
-	  return FALSE;
-	}
-      break;
-
-    case 8:
-#if CYGDEBUG
-      winDebug ("winInitVisuals - Calling miSetVisualTypesAndMasks\n");
-#endif /* CYGDEBUG */
-      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
-				     PseudoColorMask,
-				     pScreenPriv->dwBitsPerRGB,
-				     PseudoColor,
-				     pScreenPriv->dwRedMask,
-				     pScreenPriv->dwGreenMask,
-				     pScreenPriv->dwBlueMask))
-	{
-	  ErrorF ("winInitVisualsPrimaryDD - "
-		  "miSetVisualTypesAndMasks failed\n");
-	  return FALSE;
-	}
-#if CYGDEBUG
-      winDebug ("winInitVisualsPrimaryDD - Returned from "
-	      "miSetVisualTypesAndMasks\n");
-#endif /* CYGDEBUG */
-      break;
-
-    default:
-      ErrorF ("winInitVisualsPrimaryDD - Unknown screen depth\n");
-      return FALSE;
-    }
-
-  ErrorF ("winInitVisualsPrimaryDD - Returning\n");
-
-  return TRUE;
-}
-
-
-static Bool
-winAdjustVideoModePrimaryDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  HDC			hdc = NULL;
-  DWORD			dwBPP;
-
-  /* We're in serious trouble if we can't get a DC */
-  hdc = GetDC (NULL);
-  if (hdc == NULL)
-    {
-      ErrorF ("winAdjustVideoModePrimaryDD - GetDC failed\n");
-      return FALSE;
-    }
-
-  /* Query GDI for current display depth */
-  dwBPP = GetDeviceCaps (hdc, BITSPIXEL);
-
-  /* DirectDraw can only change the depth in fullscreen mode */
-  if (pScreenInfo->dwBPP == WIN_DEFAULT_BPP)
-    {
-      /* No -depth parameter passed, let the user know the depth being used */
-      ErrorF ("winAdjustVideoModePrimaryDD - Using Windows display "
-	      "depth of %d bits per pixel\n", (int) dwBPP);
-
-      /* Use GDI's depth */
-      pScreenInfo->dwBPP = dwBPP;
-    }
-  else if (pScreenInfo->fFullScreen
-	   && pScreenInfo->dwBPP != dwBPP)
-    {
-      /* FullScreen, and GDI depth differs from -depth parameter */
-      ErrorF ("winAdjustVideoModePrimaryDD - FullScreen, using command "
-	      "line depth: %d\n", (int) pScreenInfo->dwBPP);
-    }
-  else if (dwBPP != pScreenInfo->dwBPP)
-    {
-      /* Windowed, and GDI depth differs from -depth parameter */
-      ErrorF ("winAdjustVideoModePrimaryDD - Windowed, command line "
-	      "depth: %d, using depth: %d\n",
-	      (int) pScreenInfo->dwBPP, (int) dwBPP);
-
-      /* We'll use GDI's depth */
-      pScreenInfo->dwBPP = dwBPP;
-    }
-  
-  /* Release our DC */
-  ReleaseDC (NULL, hdc);
-
-  return TRUE;
-}
-
-
-/*
- * We need to blit our offscreen fb to
- * the screen when we are activated, and we need to point
- * the fb code back to the primary surface memory.
- */
-
-static Bool
-winActivateAppPrimaryDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RECT			rcSrc, rcClient;
-  HRESULT		ddrval = DD_OK;
-
-  /* Check for errors */
-  if (pScreenPriv == NULL
-      || pScreenPriv->pddsPrimary == NULL
-      || pScreenPriv->pddsOffscreen == NULL)
-    return FALSE;
-
-  /* Check for do-nothing */
-  if (!pScreenPriv->fActive)
-    return TRUE;
-  
-  /* We are activating */
-  ddrval = IDirectDrawSurface2_IsLost (pScreenPriv->pddsOffscreen);
-  if (ddrval == DD_OK)
-    {
-      IDirectDrawSurface2_Unlock (pScreenPriv->pddsOffscreen,
-				  NULL);
-      /*
-       * We don't check for an error from Unlock, because it
-       * doesn't matter if the Unlock failed.
-       */
-    }
-
-  /* Restore both surfaces, just cause I like it that way */
-  IDirectDrawSurface2_Restore (pScreenPriv->pddsOffscreen);
-  IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
-			      
-  /* Get client area in screen coords */
-  GetClientRect (pScreenPriv->hwndScreen, &rcClient);
-  MapWindowPoints (pScreenPriv->hwndScreen,
-		   HWND_DESKTOP,
-		   (LPPOINT)&rcClient, 2);
-
-  /* Setup a source rectangle */
-  rcSrc.left = 0;
-  rcSrc.top = 0;
-  rcSrc.right = pScreenInfo->dwWidth;
-  rcSrc.bottom = pScreenInfo->dwHeight;
-
-  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
-				    &rcClient,
-				    pScreenPriv->pddsOffscreen,
-				    &rcSrc,
-				    DDBLT_WAIT,
-				    NULL);
-  if (ddrval != DD_OK)
-    FatalError ("winActivateAppPrimaryDD () - Failed blitting offscreen "
-		"surface to primary surface %08x\n", (unsigned int) ddrval);
-  
-  /* Lock the primary surface */
-  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsPrimary,
-				     &rcClient,
-				     pScreenPriv->pddsdPrimary,
-				     DDLOCK_WAIT,
-				     NULL);
-  if (ddrval != DD_OK
-      || pScreenPriv->pddsdPrimary->lpSurface == NULL)
-    FatalError ("winActivateAppPrimaryDD () - Could not lock "
-		"primary surface\n");
-
-  /* Notify FB of the new memory pointer */
-  winUpdateFBPointer (pScreen,
-		      pScreenPriv->pddsdPrimary->lpSurface);
-
-  /*
-   * Register the Alt-Tab combo as a hotkey so we can copy
-   * the primary framebuffer before the display mode changes
-   */
-  RegisterHotKey (pScreenPriv->hwndScreen, 1, MOD_ALT, 9);
-
-  return TRUE;
-}
-
-
-/*
- * Handle the Alt+Tab hotkey.
- *
- * We need to save the primary fb to an offscreen fb when
- * we get deactivated, and point the fb code at the offscreen
- * fb for the duration of the deactivation.
- */
-
-static Bool
-winHotKeyAltTabPrimaryDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  RECT			rcClient, rcSrc;
-  HRESULT		ddrval = DD_OK;
-
-  ErrorF ("\nwinHotKeyAltTabPrimaryDD\n\n");
-
-  /* Alt+Tab was pressed, we will lose focus very soon */
-  pScreenPriv->fActive = FALSE;
-  
-  /* Check for error conditions */
-  if (pScreenPriv->pddsPrimary == NULL
-      || pScreenPriv->pddsOffscreen == NULL)
-    return FALSE;
-
-  /* Get client area in screen coords */
-  GetClientRect (pScreenPriv->hwndScreen, &rcClient);
-  MapWindowPoints (pScreenPriv->hwndScreen,
-		   HWND_DESKTOP,
-		   (LPPOINT)&rcClient, 2);
-
-  /* Did we loose the primary surface? */
-  ddrval = IDirectDrawSurface2_IsLost (pScreenPriv->pddsPrimary);
-  if (ddrval == DD_OK)
-    {
-      ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsPrimary,
-					   NULL);
-      if (FAILED (ddrval))
-	FatalError ("winHotKeyAltTabPrimaryDD - Failed unlocking primary "
-		    "surface\n");
-    }
-
-  /* Setup a source rectangle */
-  rcSrc.left = 0;
-  rcSrc.top = 0;
-  rcSrc.right = pScreenInfo->dwWidth;
-  rcSrc.bottom = pScreenInfo->dwHeight;
-
-      /* Blit the primary surface to the offscreen surface */
-  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsOffscreen,
-				    NULL, /* should be rcDest */
-				    pScreenPriv->pddsPrimary,
-				    NULL,
-				    DDBLT_WAIT,
-				    NULL);
-  if (ddrval == DDERR_SURFACELOST)
-    {
-      IDirectDrawSurface2_Restore (pScreenPriv->pddsOffscreen);  
-      IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
-		  		  
-      /* Blit the primary surface to the offscreen surface */
-      ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsOffscreen,
-					NULL,
-					pScreenPriv->pddsPrimary,
-					NULL,
-					DDBLT_WAIT,
-					NULL);
-      if (FAILED (ddrval))
-	FatalError ("winHotKeyAltTabPrimaryDD - Failed blitting primary "
-		    "surface to offscreen surface: %08x\n",
-		    (unsigned int) ddrval);
-    }
-  else
-    {
-      FatalError ("winHotKeyAltTabPrimaryDD - Unknown error from "
-		  "Blt: %08dx\n", (unsigned int) ddrval);
-    }
-
-  /* Lock the offscreen surface */
-  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsOffscreen,
-				     NULL,
-				     pScreenPriv->pddsdOffscreen,
-				     DDLOCK_WAIT,
-				     NULL);
-  if (ddrval != DD_OK
-      || pScreenPriv->pddsdPrimary->lpSurface == NULL)
-    FatalError ("winHotKeyAltTabPrimaryDD - Could not lock "
-		"offscreen surface\n");
-
-  /* Notify FB of the new memory pointer */
-  winUpdateFBPointer (pScreen,
-		      pScreenPriv->pddsdOffscreen->lpSurface);
-
-  /* Unregister our hotkey */
-  UnregisterHotKey (pScreenPriv->hwndScreen, 1);
-
-  return TRUE;
-}
-
-
-/* Set engine specific functions */
-Bool
-winSetEngineFunctionsPrimaryDD (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  
-  /* Set our pointers */
-  pScreenPriv->pwinAllocateFB = winAllocateFBPrimaryDD;
-  pScreenPriv->pwinShadowUpdate
-    = (winShadowUpdateProcPtr) (void (*)(void))NoopDDA;
-  pScreenPriv->pwinCloseScreen = winCloseScreenPrimaryDD;
-  pScreenPriv->pwinInitVisuals = winInitVisualsPrimaryDD;
-  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModePrimaryDD;
-  if (pScreenInfo->fFullScreen)
-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
-  else
-    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
-  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
-  pScreenPriv->pwinBltExposedRegions
-    = (winBltExposedRegionsProcPtr) (void (*)(void))NoopDDA;
-  pScreenPriv->pwinActivateApp = winActivateAppPrimaryDD;
-  pScreenPriv->pwinHotKeyAltTab = winHotKeyAltTabPrimaryDD;
-#ifdef XWIN_MULTIWINDOW
-  pScreenPriv->pwinFinishCreateWindowsWindow =
-    (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
-#endif
-
-  return TRUE;
-}
+/*

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

+ *

+ *Permission is hereby granted, free of charge, to any person obtaining

+ * a copy of this software and associated documentation files (the

+ *"Software"), to deal in the Software without restriction, including

+ *without limitation the rights to use, copy, modify, merge, publish,

+ *distribute, sublicense, and/or sell copies of the Software, and to

+ *permit persons to whom the Software is furnished to do so, subject to

+ *the following conditions:

+ *

+ *The above copyright notice and this permission notice shall be

+ *included in all copies or substantial portions of the Software.

+ *

+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

+ *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR

+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF

+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ *

+ *Except as contained in this notice, the name of the XFree86 Project

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

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

+ *from the XFree86 Project.

+ *

+ * Authors:	Dakshinamurthy Karra

+ *		Suhaib M Siddiqi

+ *		Peter Busch

+ *		Harold L Hunt II

+ */

+

+#ifdef HAVE_XWIN_CONFIG_H

+#include <xwin-config.h>

+#endif

+#include "win.h"

+

+

+/*

+ * Local function prototypes

+ */

+

+static Bool

+winAllocateFBPrimaryDD (ScreenPtr pScreen);

+

+static Bool

+winCloseScreenPrimaryDD (int nIndex, ScreenPtr pScreen);

+

+static Bool

+winInitVisualsPrimaryDD (ScreenPtr pScreen);

+

+static Bool

+winAdjustVideoModePrimaryDD (ScreenPtr pScreen);

+

+static Bool

+winActivateAppPrimaryDD (ScreenPtr pScreen);

+

+static Bool

+winHotKeyAltTabPrimaryDD (ScreenPtr pScreen);

+

+

+/*

+ * Create a DirectDraw primary surface 

+ */

+

+static Bool

+winAllocateFBPrimaryDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;  

+  HRESULT		ddrval = DD_OK;

+  DDSURFACEDESC		ddsd;

+  DDSURFACEDESC		*pddsdPrimary = NULL;

+  DDSURFACEDESC		*pddsdOffscreen = NULL;

+  RECT			rcClient;

+

+  ErrorF ("winAllocateFBPrimaryDD\n");

+

+  /* Get client area location in screen coords */

+  GetClientRect (pScreenPriv->hwndScreen, &rcClient);

+  MapWindowPoints (pScreenPriv->hwndScreen,

+		   HWND_DESKTOP,

+		   (LPPOINT)&rcClient, 2);

+

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

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

+  if (ddrval != DD_OK)

+    FatalError ("winAllocateFBPrimaryDD - Could not start DirectDraw\n");

+  

+  /* Get a DirectDraw2 interface pointer */

+  ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,

+				       &IID_IDirectDraw2,

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

+  if (FAILED (ddrval))

+    {

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

+	      (unsigned int) ddrval);

+      return FALSE;

+    }

+

+

+  ErrorF ("winAllocateFBPrimaryDD - Created and initialized DD\n");

+

+  /* Are we windowed or fullscreen? */

+  if (pScreenInfo->fFullScreen)

+    {

+      /* Full screen mode */

+      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,

+						 pScreenPriv->hwndScreen,

+						 DDSCL_FULLSCREEN

+						 | DDSCL_EXCLUSIVE);

+      if (FAILED (ddrval))

+	FatalError ("winAllocateFBPrimaryDD - Could not set "

+		    "cooperative level\n");

+

+      /* Change the video mode to the mode requested */

+      ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,

+					    pScreenInfo->dwWidth,

+					    pScreenInfo->dwHeight,

+					    pScreenInfo->dwBPP,

+					    pScreenInfo->dwRefreshRate,

+					    0);

+       if (FAILED (ddrval))

+	FatalError ("winAllocateFBPrimaryDD - Could not set "

+		    "full screen display mode\n");

+    }

+  else

+    {

+      /* Windowed mode */

+      ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,

+						 pScreenPriv->hwndScreen,

+						 DDSCL_NORMAL);

+      if (FAILED (ddrval))

+	FatalError ("winAllocateFBPrimaryDD - Could not set "

+		    "cooperative level\n");

+    }

+

+  /* Describe the primary surface */

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

+  ddsd.dwSize = sizeof (ddsd);

+  ddsd.dwFlags = DDSD_CAPS;

+  ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

+  

+  /* Create the primary surface */

+  ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,

+				       &ddsd,

+				       &pScreenPriv->pddsPrimary,

+				       NULL);

+  if (FAILED (ddrval))

+       FatalError ("winAllocateFBPrimaryDD - Could not create primary "

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

+

+  ErrorF ("winAllocateFBPrimaryDD - Created primary\n");

+

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

+  pddsdPrimary = pScreenPriv->pddsdPrimary

+    = malloc (sizeof (DDSURFACEDESC));

+  if (pddsdPrimary == NULL)

+    FatalError ("winAllocateFBPrimaryDD - Could not allocate surface "

+		"description memory\n");

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

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

+

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

+  /*

+   * NOTE: Do not use a DDSCAPS_VIDEOMEMORY surface,

+   * as drawing, locking, and unlocking take forever

+   * with video memory surfaces.  In addition,

+   * video memory is a somewhat scarce resource,

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

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

+   */

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

+  ddsd.dwSize = sizeof (ddsd);

+  ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;

+  ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;

+  ddsd.dwHeight = pScreenInfo->dwHeight;

+  ddsd.dwWidth = pScreenInfo->dwWidth;

+

+  /* Create the shadow surface */

+  ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,

+				       &ddsd,

+				       &pScreenPriv->pddsOffscreen,

+				       NULL);

+  if (ddrval != DD_OK)

+    FatalError ("winAllocateFBPrimaryDD - Could not create shadow "

+		"surface\n");

+  

+  ErrorF ("winAllocateFBPrimaryDD - Created offscreen\n");

+

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

+  pddsdOffscreen = pScreenPriv->pddsdOffscreen

+    = malloc (sizeof (DDSURFACEDESC));

+  if (pddsdOffscreen == NULL)

+    FatalError ("winAllocateFBPrimaryDD - Could not allocate surface "

+		"description memory\n");

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

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

+

+  ErrorF ("winAllocateFBPrimaryDD - Locking primary\n");

+

+  /* Lock the primary surface */

+  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsPrimary,

+				    pScreenInfo->fFullScreen ? NULL:&rcClient,

+				    pddsdPrimary,

+				    DDLOCK_WAIT,

+				    NULL);

+  if (ddrval != DD_OK || pddsdPrimary->lpSurface == NULL)

+    FatalError ("winAllocateFBPrimaryDD - Could not lock "

+		"primary surface\n");

+

+  ErrorF ("winAllocateFBPrimaryDD - Locked primary\n");

+

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

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

+    FatalError ("winAllocateFBPrimaryDD - Color format other than RGB\n");

+

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

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

+    / pScreenInfo->dwBPP;

+

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

+  pScreenInfo->pfb = pddsdPrimary->lpSurface;

+  

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

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

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

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

+

+  ErrorF ("winAllocateFBPrimaryDD - Returning\n");

+

+  return TRUE;

+}

+

+

+/*

+ * Call the wrapped CloseScreen function.

+ * 

+ * Free our resources and private structures.

+ */

+

+static Bool

+winCloseScreenPrimaryDD (int nIndex, ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  Bool			fReturn;

+  

+  ErrorF ("winCloseScreenPrimaryDD - 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 offscreen surface, if there is one */

+  if (pScreenPriv->pddsOffscreen)

+    {

+      IDirectDrawSurface2_Unlock (pScreenPriv->pddsOffscreen, NULL);

+      IDirectDrawSurface2_Release (pScreenPriv->pddsOffscreen);

+      pScreenPriv->pddsOffscreen = NULL;

+    }

+

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

+  if (pScreenPriv->pddsPrimary)

+    {

+      IDirectDrawSurface2_Unlock (pScreenPriv->pddsPrimary, NULL);

+      IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);

+      pScreenPriv->pddsPrimary = NULL;

+    }

+

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

+  if (pScreenPriv->pdd)

+    {

+      IDirectDraw2_RestoreDisplayMode (pScreenPriv->pdd);

+      IDirectDraw2_Release (pScreenPriv->pdd);

+      pScreenPriv->pdd = NULL;

+    }

+

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

+  if (!pScreenInfo->fNoTrayIcon)

+    winDeleteNotifyIcon (pScreenPriv);

+

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

+  if (g_hDlgExit != NULL)

+    {

+      DestroyWindow (g_hDlgExit);

+      g_hDlgExit = NULL;

+    }

+

+  /* Kill our window */

+  if (pScreenPriv->hwndScreen)

+    {

+      DestroyWindow (pScreenPriv->hwndScreen);

+      pScreenPriv->hwndScreen = NULL;

+    }

+

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

+  pScreenInfo->pScreen = NULL;

+

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

+  pScreenInfo->pfb = NULL;

+

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

+  free ((pointer) pScreenPriv);

+

+  return fReturn;

+}

+

+

+/*

+ * Tell mi what sort of visuals we need.

+ * 

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

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

+ * to verify that last sentence.

+ */

+

+static Bool

+winInitVisualsPrimaryDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  DWORD			dwRedBits, dwGreenBits, dwBlueBits;

+

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

+  dwRedBits = winCountBits (pScreenPriv->dwRedMask);

+  dwGreenBits = winCountBits (pScreenPriv->dwGreenMask);

+  dwBlueBits = winCountBits (pScreenPriv->dwBlueMask);

+  

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

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

+    pScreenPriv->dwBitsPerRGB = dwRedBits;

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

+    pScreenPriv->dwBitsPerRGB = dwGreenBits;

+  else

+    pScreenPriv->dwBitsPerRGB = dwBlueBits;

+  

+  ErrorF ("winInitVisualsPrimaryDD - Masks: %08x %08x %08x bpRGB: %d\n",

+	  (unsigned int) pScreenPriv->dwRedMask,

+	  (unsigned int) pScreenPriv->dwGreenMask,

+	  (unsigned int) pScreenPriv->dwBlueMask,

+	  (int) pScreenPriv->dwBitsPerRGB);

+

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

+  switch (pScreenInfo->dwDepth)

+    {

+    case 24:

+    case 16:

+    case 15:

+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     TrueColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     TrueColor,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsPrimaryDD - " 

+		  "miSetVisualTypesAndMasks failed\n");

+	  return FALSE;

+	}

+      break;

+

+    case 8:

+#if CYGDEBUG

+      winDebug ("winInitVisuals - Calling miSetVisualTypesAndMasks\n");

+#endif /* CYGDEBUG */

+      if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,

+				     PseudoColorMask,

+				     pScreenPriv->dwBitsPerRGB,

+				     PseudoColor,

+				     pScreenPriv->dwRedMask,

+				     pScreenPriv->dwGreenMask,

+				     pScreenPriv->dwBlueMask))

+	{

+	  ErrorF ("winInitVisualsPrimaryDD - "

+		  "miSetVisualTypesAndMasks failed\n");

+	  return FALSE;

+	}

+#if CYGDEBUG

+      winDebug ("winInitVisualsPrimaryDD - Returned from "

+	      "miSetVisualTypesAndMasks\n");

+#endif /* CYGDEBUG */

+      break;

+

+    default:

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

+      return FALSE;

+    }

+

+  ErrorF ("winInitVisualsPrimaryDD - Returning\n");

+

+  return TRUE;

+}

+

+

+static Bool

+winAdjustVideoModePrimaryDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  HDC			hdc = NULL;

+  DWORD			dwBPP;

+

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

+  hdc = GetDC (NULL);

+  if (hdc == NULL)

+    {

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

+      return FALSE;

+    }

+

+  /* Query GDI for current display depth */

+  dwBPP = GetDeviceCaps (hdc, BITSPIXEL);

+

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

+  if (pScreenInfo->dwBPP == WIN_DEFAULT_BPP)

+    {

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

+      ErrorF ("winAdjustVideoModePrimaryDD - Using Windows display "

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

+

+      /* Use GDI's depth */

+      pScreenInfo->dwBPP = dwBPP;

+    }

+  else if (pScreenInfo->fFullScreen

+	   && pScreenInfo->dwBPP != dwBPP)

+    {

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

+      ErrorF ("winAdjustVideoModePrimaryDD - FullScreen, using command "

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

+    }

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

+    {

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

+      ErrorF ("winAdjustVideoModePrimaryDD - Windowed, command line "

+	      "depth: %d, using depth: %d\n",

+	      (int) pScreenInfo->dwBPP, (int) dwBPP);

+

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

+      pScreenInfo->dwBPP = dwBPP;

+    }

+  

+  /* Release our DC */

+  ReleaseDC (NULL, hdc);

+

+  return TRUE;

+}

+

+

+/*

+ * We need to blit our offscreen fb to

+ * the screen when we are activated, and we need to point

+ * the fb code back to the primary surface memory.

+ */

+

+static Bool

+winActivateAppPrimaryDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RECT			rcSrc, rcClient;

+  HRESULT		ddrval = DD_OK;

+

+  /* Check for errors */

+  if (pScreenPriv == NULL

+      || pScreenPriv->pddsPrimary == NULL

+      || pScreenPriv->pddsOffscreen == NULL)

+    return FALSE;

+

+  /* Check for do-nothing */

+  if (!pScreenPriv->fActive)

+    return TRUE;

+  

+  /* We are activating */

+  ddrval = IDirectDrawSurface2_IsLost (pScreenPriv->pddsOffscreen);

+  if (ddrval == DD_OK)

+    {

+      IDirectDrawSurface2_Unlock (pScreenPriv->pddsOffscreen,

+				  NULL);

+      /*

+       * We don't check for an error from Unlock, because it

+       * doesn't matter if the Unlock failed.

+       */

+    }

+

+  /* Restore both surfaces, just cause I like it that way */

+  IDirectDrawSurface2_Restore (pScreenPriv->pddsOffscreen);

+  IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);

+			      

+  /* Get client area in screen coords */

+  GetClientRect (pScreenPriv->hwndScreen, &rcClient);

+  MapWindowPoints (pScreenPriv->hwndScreen,

+		   HWND_DESKTOP,

+		   (LPPOINT)&rcClient, 2);

+

+  /* Setup a source rectangle */

+  rcSrc.left = 0;

+  rcSrc.top = 0;

+  rcSrc.right = pScreenInfo->dwWidth;

+  rcSrc.bottom = pScreenInfo->dwHeight;

+

+  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,

+				    &rcClient,

+				    pScreenPriv->pddsOffscreen,

+				    &rcSrc,

+				    DDBLT_WAIT,

+				    NULL);

+  if (ddrval != DD_OK)

+    FatalError ("winActivateAppPrimaryDD () - Failed blitting offscreen "

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

+  

+  /* Lock the primary surface */

+  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsPrimary,

+				     &rcClient,

+				     pScreenPriv->pddsdPrimary,

+				     DDLOCK_WAIT,

+				     NULL);

+  if (ddrval != DD_OK

+      || pScreenPriv->pddsdPrimary->lpSurface == NULL)

+    FatalError ("winActivateAppPrimaryDD () - Could not lock "

+		"primary surface\n");

+

+  /* Notify FB of the new memory pointer */

+  winUpdateFBPointer (pScreen,

+		      pScreenPriv->pddsdPrimary->lpSurface);

+

+  /*

+   * Register the Alt-Tab combo as a hotkey so we can copy

+   * the primary framebuffer before the display mode changes

+   */

+  RegisterHotKey (pScreenPriv->hwndScreen, 1, MOD_ALT, 9);

+

+  return TRUE;

+}

+

+

+/*

+ * Handle the Alt+Tab hotkey.

+ *

+ * We need to save the primary fb to an offscreen fb when

+ * we get deactivated, and point the fb code at the offscreen

+ * fb for the duration of the deactivation.

+ */

+

+static Bool

+winHotKeyAltTabPrimaryDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  RECT			rcClient, rcSrc;

+  HRESULT		ddrval = DD_OK;

+

+  ErrorF ("\nwinHotKeyAltTabPrimaryDD\n\n");

+

+  /* Alt+Tab was pressed, we will lose focus very soon */

+  pScreenPriv->fActive = FALSE;

+  

+  /* Check for error conditions */

+  if (pScreenPriv->pddsPrimary == NULL

+      || pScreenPriv->pddsOffscreen == NULL)

+    return FALSE;

+

+  /* Get client area in screen coords */

+  GetClientRect (pScreenPriv->hwndScreen, &rcClient);

+  MapWindowPoints (pScreenPriv->hwndScreen,

+		   HWND_DESKTOP,

+		   (LPPOINT)&rcClient, 2);

+

+  /* Did we loose the primary surface? */

+  ddrval = IDirectDrawSurface2_IsLost (pScreenPriv->pddsPrimary);

+  if (ddrval == DD_OK)

+    {

+      ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsPrimary,

+					   NULL);

+      if (FAILED (ddrval))

+	FatalError ("winHotKeyAltTabPrimaryDD - Failed unlocking primary "

+		    "surface\n");

+    }

+

+  /* Setup a source rectangle */

+  rcSrc.left = 0;

+  rcSrc.top = 0;

+  rcSrc.right = pScreenInfo->dwWidth;

+  rcSrc.bottom = pScreenInfo->dwHeight;

+

+      /* Blit the primary surface to the offscreen surface */

+  ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsOffscreen,

+				    NULL, /* should be rcDest */

+				    pScreenPriv->pddsPrimary,

+				    NULL,

+				    DDBLT_WAIT,

+				    NULL);

+  if (ddrval == DDERR_SURFACELOST)

+    {

+      IDirectDrawSurface2_Restore (pScreenPriv->pddsOffscreen);  

+      IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);

+		  		  

+      /* Blit the primary surface to the offscreen surface */

+      ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsOffscreen,

+					NULL,

+					pScreenPriv->pddsPrimary,

+					NULL,

+					DDBLT_WAIT,

+					NULL);

+      if (FAILED (ddrval))

+	FatalError ("winHotKeyAltTabPrimaryDD - Failed blitting primary "

+		    "surface to offscreen surface: %08x\n",

+		    (unsigned int) ddrval);

+    }

+  else

+    {

+      FatalError ("winHotKeyAltTabPrimaryDD - Unknown error from "

+		  "Blt: %08dx\n", (unsigned int) ddrval);

+    }

+

+  /* Lock the offscreen surface */

+  ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsOffscreen,

+				     NULL,

+				     pScreenPriv->pddsdOffscreen,

+				     DDLOCK_WAIT,

+				     NULL);

+  if (ddrval != DD_OK

+      || pScreenPriv->pddsdPrimary->lpSurface == NULL)

+    FatalError ("winHotKeyAltTabPrimaryDD - Could not lock "

+		"offscreen surface\n");

+

+  /* Notify FB of the new memory pointer */

+  winUpdateFBPointer (pScreen,

+		      pScreenPriv->pddsdOffscreen->lpSurface);

+

+  /* Unregister our hotkey */

+  UnregisterHotKey (pScreenPriv->hwndScreen, 1);

+

+  return TRUE;

+}

+

+

+/* Set engine specific functions */

+Bool

+winSetEngineFunctionsPrimaryDD (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  

+  /* Set our pointers */

+  pScreenPriv->pwinAllocateFB = winAllocateFBPrimaryDD;

+  pScreenPriv->pwinShadowUpdate

+    = (winShadowUpdateProcPtr) (void (*)(void))NoopDDA;

+  pScreenPriv->pwinCloseScreen = winCloseScreenPrimaryDD;

+  pScreenPriv->pwinInitVisuals = winInitVisualsPrimaryDD;

+  pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModePrimaryDD;

+  if (pScreenInfo->fFullScreen)

+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;

+  else

+    pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;

+  pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;

+  pScreenPriv->pwinBltExposedRegions

+    = (winBltExposedRegionsProcPtr) (void (*)(void))NoopDDA;

+  pScreenPriv->pwinActivateApp = winActivateAppPrimaryDD;

+  pScreenPriv->pwinHotKeyAltTab = winHotKeyAltTabPrimaryDD;

+#ifdef XWIN_MULTIWINDOW

+  pScreenPriv->pwinFinishCreateWindowsWindow =

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

+#endif

+

+  return TRUE;

+}