From d0447fd97e665004de82c29782e9bfdf3adc48e3 Mon Sep 17 00:00:00 2001
From: Guido L <lipkegu@gmail.com>
Date: Sun, 6 Sep 2015 01:48:42 +0200
Subject: [PATCH] Ensure that we have a working OpenGL context.

---
 OpenRA.Platforms.Default/Sdl2GraphicsDevice.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/OpenRA.Platforms.Default/Sdl2GraphicsDevice.cs b/OpenRA.Platforms.Default/Sdl2GraphicsDevice.cs
index 71d2b89de0..286aa65081 100644
--- a/OpenRA.Platforms.Default/Sdl2GraphicsDevice.cs
+++ b/OpenRA.Platforms.Default/Sdl2GraphicsDevice.cs
@@ -75,7 +75,9 @@ namespace OpenRA.Platforms.Default
 			}
 
 			context = SDL.SDL_GL_CreateContext(window);
-			SDL.SDL_GL_MakeCurrent(window, context);
+			if (context == IntPtr.Zero || SDL.SDL_GL_MakeCurrent(window, context) < 0)
+				throw new InvalidOperationException("Can not create OpenGL context. (Error: {0})".F(SDL.SDL_GetError()));
+
 			GraphicsContext.CurrentContext = context;
 
 			GL.LoadAll();