From 466e4af8f518db5d9b79901aa575db42de91b7e4 Mon Sep 17 00:00:00 2001
From: the_fiddler <the_fiddler@ebc5dd9b-fb1d-0410-b6f8-d24c324e9604>
Date: Thu, 7 May 2009 10:38:05 +0000
Subject: [PATCH] Use rgba textures instead of alpha on SavagePro/Twister
 renderers. Workaround for bug [#833] "TextPrinter problem"
 (http://www.opentk.com/node/833).

---
 .../Graphics/Text/GL11TextOutputProvider.cs        | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/Source/Utilities/Graphics/Text/GL11TextOutputProvider.cs b/Source/Utilities/Graphics/Text/GL11TextOutputProvider.cs
index 8cb9c2fa..96d42b8e 100644
--- a/Source/Utilities/Graphics/Text/GL11TextOutputProvider.cs
+++ b/Source/Utilities/Graphics/Text/GL11TextOutputProvider.cs
@@ -22,8 +22,6 @@ namespace OpenTK.Graphics.Text
                 this.quality = TextQuality.Medium;
             else
                 this.quality = quality;
-
-            cache = new GlyphCache<AlphaTexture2D>();
         }
 
         #endregion
@@ -47,7 +45,17 @@ namespace OpenTK.Graphics.Text
 
         protected override GlyphCache Cache
         {
-            get { return cache; }
+            get
+            {
+                if (cache == null)
+                {
+                    if (GL.GetString(StringName.Renderer).Contains("ProSavage/Twister"))
+                        cache = new GlyphCache<RgbaTexture2D>();
+                    else
+                        cache = new GlyphCache<AlphaTexture2D>();
+                }
+                return cache;
+            }
         }
 
         #endregion