EngMaskBitBlt() ASSERT instead of if(), this function should trust it's callers
IntEngMaskBlt() trust caller to send required parameters

reactos/subsys/win32k/eng

diff -u -r1.65 -r1.66
--- bitblt.c	18 Dec 2004 17:36:13 -0000	1.65
+++ bitblt.c	18 Dec 2004 17:52:30 -0000	1.66
@@ -16,7 +16,7 @@

  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

-/* $Id: bitblt.c,v 1.65 2004/12/18 17:36:13 royce Exp $

+/* $Id: bitblt.c,v 1.66 2004/12/18 17:52:30 royce Exp $

  *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel

@@ -901,8 +901,7 @@

   ULONG              Direction;
   POINTL             AdjustedBrushOrigin;
 

-  if ( NULL == Mask )
-    return FALSE;

+  ASSERT ( Mask );

 
   if (NULL != SourcePoint)
     {

@@ -1095,6 +1094,8 @@

   RECTL OutputRect;
   POINTL InputPoint;
 

+  ASSERT(Mask);
+

   if (NULL != SourcePoint)
     {
       InputPoint = *SourcePoint;