From ff5cbc65c573d438d8a671f1a3da1a26ad17eb9c Mon Sep 17 00:00:00 2001
From: Paul Chote <paul@chote.net>
Date: Wed, 18 Dec 2013 21:33:52 +1300
Subject: [PATCH] Throw a sensible exception when no renderers are available.
 Fixes #4322.

---
 OpenRA.Game/Game.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/OpenRA.Game/Game.cs b/OpenRA.Game/Game.cs
index 6ec7d4bd92..5d4baf9696 100644
--- a/OpenRA.Game/Game.cs
+++ b/OpenRA.Game/Game.cs
@@ -284,9 +284,12 @@ namespace OpenRA
 			}
 
 			FileSystem.Mount("."); // Needed to access shaders
-			var renderers = new [] { Settings.Graphics.Renderer, "Sdl2", "Gl", "Cg" };
+			var renderers = new [] { Settings.Graphics.Renderer, "Sdl2", "Gl", "Cg", null };
 			foreach (var r in renderers)
 			{
+				if (r == null)
+					throw new InvalidOperationException("No suitable renderers were found. Check graphics.log for details.");
+
 				Settings.Graphics.Renderer = r;
 				try
 				{