From 9766e56248eb82b4702ffc552ee93804bd3d31ca Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Tue, 18 Sep 2012 22:01:38 +0000
Subject: [PATCH] [WIN32K] make sure at least one rect is allocated in
 REGION_PtsToRegion. Fixes failed assertion when starting pacman4000 (the game
 itself doesn't work though) CORE-5431 #resolve

svn path=/trunk/; revision=57329
---
 reactos/win32ss/gdi/ntgdi/region.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/reactos/win32ss/gdi/ntgdi/region.c b/reactos/win32ss/gdi/ntgdi/region.c
index f6f341e145a..19851fbd262 100644
--- a/reactos/win32ss/gdi/ntgdi/region.c
+++ b/reactos/win32ss/gdi/ntgdi/region.c
@@ -2911,6 +2911,12 @@ REGION_PtsToRegion(
 
     numRects = ((numFullPtBlocks * NUMPTSTOBUFFER) + iCurPtBlock) >> 1;
 
+    /* Make sure, we have at least one rect */
+    if (numRects == 0)
+    {
+        numRects = 1;
+    }
+
     if (!(temp = ExAllocatePoolWithTag(PagedPool, numRects * sizeof(RECT), TAG_REGION)))
     {
         return 0;