From e968f5c572be817b661e702e4a8ceb38f44b13c2 Mon Sep 17 00:00:00 2001
From: glx <glx@openttd.org>
Date: Tue, 17 Mar 2009 16:28:21 +0000
Subject: [PATCH] (svn r15752) -Fix: don't try to (un)draw the cursor when the
 screen is not ready

---
 src/gfx.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gfx.cpp b/src/gfx.cpp
index 4423bff190..aeac0db1d0 100644
--- a/src/gfx.cpp
+++ b/src/gfx.cpp
@@ -1285,6 +1285,9 @@ void ScreenSizeChanged()
 
 void UndrawMouseCursor()
 {
+	/* Don't undraw the mouse cursor if the screen is not ready */
+	if (_screen.dst_ptr == NULL) return;
+
 	if (_cursor.visible) {
 		Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
 		_cursor.visible = false;
@@ -1300,6 +1303,9 @@ void DrawMouseCursor()
 	return;
 #endif
 
+	/* Don't draw the mouse cursor if the screen is not ready */
+	if (_screen.dst_ptr == NULL) return;
+
 	Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
 	int x;
 	int y;