[tkreuzer] 33743: EngLineTo: if pco == NULL use a private clip object, initialized with bounds rect

Author: tkreuzer
Date: Wed May 28 15:00:03 2008
New Revision: 33743

URL: http://svn.reactos.org/svn/reactos?rev=33743&view=rev
Log:
EngLineTo: if pco == NULL use a private clip object, initialized with bounds rect

Modified:
    trunk/reactos/subsystems/win32/win32k/eng/lineto.c

Modified: trunk/reactos/subsystems/win32/win32k/eng/lineto.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/eng...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/eng/lineto.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/eng/lineto.c [iso-8859-1] Wed May 28 15:00:03 2008
@@ -348,6 +348,7 @@
     INTENG_ENTER_LEAVE EnterLeave;
     RECT_ENUM RectEnum;
     BOOL EnumMore;
+    CLIPOBJ *pcoPriv = NULL;

if (x1 < x2)
     {
@@ -373,6 +374,15 @@
     if (! IntEngEnter(&EnterLeave, DestObj, &DestRect, FALSE, &Translate, &OutputObj))
     {
         return FALSE;
+    }
+
+    if (!Clip)
+    {
+        Clip = pcoPriv = IntEngCreateClipRegion(0, 0, RectBounds);
+        if (!Clip)
+        {
+            return FALSE;
+        }
     }

x1 += Translate.x;
@@ -485,6 +495,11 @@
                 SEtoNW(OutputObj, Clip, Brush, x, y, deltax, deltay, &Translate);
             }
         }
+    }
+
+    if (pcoPriv)
+    {
+        IntEngDeleteClipRegion(pcoPriv);
     }

return IntEngLeave(&EnterLeave);