[gschneider] 42741: Allocate span memory for every clipping type, not only for one

Author: gschneider
Date: Sun Aug 16 21:20:50 2009
New Revision: 42741

URL: http://svn.reactos.org/svn/reactos?rev=42741&view=rev
Log:
Allocate span memory for every clipping type, not only for one

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

Modified: trunk/reactos/subsystems/win32/win32k/eng/clip.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/en…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/eng/clip.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/eng/clip.c [iso-8859-1] Sun Aug 16 21:20:50
2009
@@ -406,18 +406,21 @@
 
     ASSERT(Boundary->top <= Boundary->bottom && Boundary->left <=
Boundary->right);
 
-    *Spans = NULL;
+    *Count = Boundary->bottom - Boundary->top;
+    if (*Count > 0)
+    {
+        *Spans = ExAllocatePoolWithTag(PagedPool, *Count * sizeof(SPAN), TAG_CLIP);
+        if (NULL == *Spans)
+        {
+            *Count = 0;
+            return FALSE;
+        }
+    }
+
     if (NULL == ClipRegion || DC_TRIVIAL == ClipRegion->iDComplexity)
     {
-        *Count = Boundary->bottom - Boundary->top;
         if (0 != *Count)
         {
-            *Spans = ExAllocatePoolWithTag(PagedPool, *Count * sizeof(SPAN), TAG_CLIP);
-            if (NULL == *Spans)
-            {
-                *Count = 0;
-                return FALSE;
-            }
             for (i = 0; i < Boundary->bottom - Boundary->top; i++)
             {
                 (*Spans)[i].X = Boundary->left;