[ros-diffs] [greatlrd] 18747: prepare some directdraw syscall using cache info, that will make our ddraw.dll work evently in reactos.

prepare some directdraw syscall using cache info, that will make our
ddraw.dll work evently in reactos.
Modified: trunk/reactos/subsys/win32k/ntddraw/ddraw.c
  _____  

Modified: trunk/reactos/subsys/win32k/ntddraw/ddraw.c
--- trunk/reactos/subsys/win32k/ntddraw/ddraw.c	2005-10-24 17:27:41 UTC
(rev 18746)
+++ trunk/reactos/subsys/win32k/ntddraw/ddraw.c	2005-10-24 17:32:47 UTC
(rev 18747)
@@ -208,12 +208,19 @@

 )
 {
 	DWORD  ddRVal = DDHAL_DRIVER_NOTHANDLED;
-	
+	PDD_DIRECTDRAW_GLOBAL lgpl;
 
 	PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(hDirectDrawLocal,
GDI_OBJECT_TYPE_DIRECTDRAW);
 	if (pDirectDraw == NULL) 
 		return DDHAL_DRIVER_NOTHANDLED;
 
+	/* backup the orignal PDev and info */
+	lgpl = puCreateSurfaceData->lpDD;
+
+	/* use our cache version instead */
+	puCreateSurfaceData->lpDD = &pDirectDraw->Global;
+	
+	/* make the call */
 	if (!(pDirectDraw->DD.dwFlags & DDHAL_CB32_CANCREATESURFACE))
 		ddRVal = DDHAL_DRIVER_NOTHANDLED;
 	else
@@ -221,6 +228,9 @@
 	   ddRVal = pDirectDraw->DD.CreateSurface(puCreateSurfaceData);
}
 
+	/* But back the orignal PDev */
+	puCreateSurfaceData->lpDD = lgpl;
+    
 	GDIOBJ_UnlockObjByPtr(pDirectDraw);	
 	return ddRVal;
 }
@@ -231,15 +241,27 @@
 )
 {
 	DWORD  ddRVal;
+	PDD_DIRECTDRAW_GLOBAL lgpl;
+
 	PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(hDirectDrawLocal,
GDI_OBJECT_TYPE_DIRECTDRAW);
 	if (pDirectDraw == NULL) 
 		return DDHAL_DRIVER_NOTHANDLED;
 
+	/* backup the orignal PDev and info */
+	lgpl = puWaitForVerticalBlankData->lpDD;
+
+	/* use our cache version instead */
+	puWaitForVerticalBlankData->lpDD = &pDirectDraw->Global;
+
+	/* make the call */
 	if (!(pDirectDraw->DD.dwFlags &
DDHAL_CB32_WAITFORVERTICALBLANK))
 		ddRVal = DDHAL_DRIVER_NOTHANDLED;
 	else	
   	    ddRVal =
pDirectDraw->DD.WaitForVerticalBlank(puWaitForVerticalBlankData);
 
+	/* But back the orignal PDev */
+	puWaitForVerticalBlankData->lpDD = lgpl;
+
     GDIOBJ_UnlockObjByPtr(pDirectDraw);
 	return ddRVal;
 }
@@ -250,16 +272,27 @@
 )
 {
 	DWORD  ddRVal;
+	PDD_DIRECTDRAW_GLOBAL lgpl;
 
 	PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(hDirectDrawLocal,
GDI_OBJECT_TYPE_DIRECTDRAW);
 	if (pDirectDraw == NULL) 
 		return DDHAL_DRIVER_NOTHANDLED;
 
+	/* backup the orignal PDev and info */
+	lgpl = puCanCreateSurfaceData->lpDD;
+
+	/* use our cache version instead */
+	puCanCreateSurfaceData->lpDD = &pDirectDraw->Global;
+
+	/* make the call */
 	if (!(pDirectDraw->DD.dwFlags & DDHAL_CB32_CANCREATESURFACE))
 		ddRVal = DDHAL_DRIVER_NOTHANDLED;
 	else	
 	    ddRVal =
pDirectDraw->DD.CanCreateSurface(puCanCreateSurfaceData);
 
+	/* But back the orignal PDev */
+	puCanCreateSurfaceData->lpDD = lgpl;
+
 	GDIOBJ_UnlockObjByPtr(pDirectDraw);
 	return ddRVal;
 }
@@ -270,16 +303,27 @@
 )
 {
 	DWORD  ddRVal;
+	PDD_DIRECTDRAW_GLOBAL lgpl;
 
 	PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(hDirectDrawLocal,
GDI_OBJECT_TYPE_DIRECTDRAW);
 	if (pDirectDraw == NULL) 
 		return DDHAL_DRIVER_NOTHANDLED;
 
+	/* backup the orignal PDev and info */
+	lgpl = puGetScanLineData->lpDD;
+
+	/* use our cache version instead */
+	puGetScanLineData->lpDD = &pDirectDraw->Global;
+
+	/* make the call */
 	if (!(pDirectDraw->DD.dwFlags & DDHAL_CB32_GETSCANLINE))
 		ddRVal = DDHAL_DRIVER_NOTHANDLED;
 	else	
 	    ddRVal = pDirectDraw->DD.GetScanLine(puGetScanLineData);
 
+	/* But back the orignal PDev */
+	puGetScanLineData->lpDD = lgpl;
+
 	GDIOBJ_UnlockObjByPtr(pDirectDraw);
 	return ddRVal;
 }
@@ -321,6 +365,7 @@
         ddRVal = pDirectDraw->Surf.DestroySurface(&DestroySurf); 
 	}
 
+	
     GDIOBJ_UnlockObjByPtr(pDirectDraw);
     return ddRVal;			
 }
@@ -334,16 +379,27 @@
 )
 {
 	DWORD  ddRVal;
+	PDD_DIRECTDRAW_GLOBAL lgpl;
 
 	PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(hSurfaceTarget,
GDI_OBJECT_TYPE_DIRECTDRAW);
 	if (pDirectDraw == NULL) 
 		return DDHAL_DRIVER_NOTHANDLED;
 
+	/* backup the orignal PDev and info */
+	lgpl = puFlipData->lpDD;
+
+	/* use our cache version instead */
+	puFlipData->lpDD = &pDirectDraw->Global;
+
+	/* make the call */
 	if (!(pDirectDraw->Surf.dwFlags & DDHAL_SURFCB32_FLIP))
 		ddRVal = DDHAL_DRIVER_NOTHANDLED;
 	else
         ddRVal = pDirectDraw->Surf.Flip(puFlipData);
 
+	/* But back the orignal PDev */
+	puFlipData->lpDD = lgpl;
+
     GDIOBJ_UnlockObjByPtr(pDirectDraw);
     return ddRVal;		
 }
@@ -355,16 +411,27 @@
 )
 {
 	DWORD  ddRVal;
+	PDD_DIRECTDRAW_GLOBAL lgpl;
 
 	PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(hSurface,
GDI_OBJECT_TYPE_DIRECTDRAW);
 	if (pDirectDraw == NULL) 
 		return DDHAL_DRIVER_NOTHANDLED;
 
+	/* backup the orignal PDev and info */
+	lgpl = puLockData->lpDD;
+
+	/* use our cache version instead */
+	puLockData->lpDD = &pDirectDraw->Global;
+
+	/* make the call */
 	if (!(pDirectDraw->Surf.dwFlags & DDHAL_SURFCB32_LOCK))
 		ddRVal = DDHAL_DRIVER_NOTHANDLED;
 	else
         ddRVal = pDirectDraw->Surf.Lock(puLockData);
 
+	/* But back the orignal PDev */
+	puLockData->lpDD = lgpl;
+
     GDIOBJ_UnlockObjByPtr(pDirectDraw);
     return ddRVal;		
 }