From 29a07afc58bb02b04c5f9dcbc7ac6cb4095accba Mon Sep 17 00:00:00 2001
From: Eugene Sandulenko
Date: Fri, 27 Dec 2019 22:43:11 +0100
Subject: GRAPHICS: MACGUI: Enhance sanity check for pattern references

---
 graphics/macgui/macwindowmanager.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'graphics')

diff --git a/graphics/macgui/macwindowmanager.cpp b/graphics/macgui/macwindowmanager.cpp
index 570c526565..12cd391f92 100644
--- a/graphics/macgui/macwindowmanager.cpp
+++ b/graphics/macgui/macwindowmanager.cpp
@@ -284,7 +284,7 @@ void MacWindowManager::removeWindow(MacWindow *target) {
 void macDrawPixel(int x, int y, int color, void *data) {
 	MacPlotData *p = (MacPlotData *)data;
 
-	if (p->fillType > p->patterns->size())
+	if (p->fillType > p->patterns->size() || !p->fillType)
 		return;
 
 	byte *pat = p->patterns->operator[](p->fillType - 1);
-- 
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