From 8bafa218e640d69ba2c9a7a91423c13888bf5bc8 Mon Sep 17 00:00:00 2001
From: the_fiddler <the_fiddler@ebc5dd9b-fb1d-0410-b6f8-d24c324e9604>
Date: Fri, 29 May 2009 16:52:48 +0000
Subject: [PATCH] Updated tokens for DrawBuffer() method. Fixes issue [#851]:
 "[OpenGL] DrawBuffer and DrawBuffers tokens"
 (http://www.opentk.com/node/851).

---
 Source/Bind/Specifications/GL2/enumext.spec | 22 ++++++++++++++++++++-
 Source/OpenTK/Graphics/GL/GLEnums.cs        | 16 +++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/Source/Bind/Specifications/GL2/enumext.spec b/Source/Bind/Specifications/GL2/enumext.spec
index 2f8473fb..866ddfb0 100644
--- a/Source/Bind/Specifications/GL2/enumext.spec
+++ b/Source/Bind/Specifications/GL2/enumext.spec
@@ -6777,6 +6777,26 @@ DrawBuffersEnum enum:
 	use ARB_framebuffer_object	    COLOR_ATTACHMENT14
 	use ARB_framebuffer_object	    COLOR_ATTACHMENT15
 
+# These tokens are only valid when the current FramebufferBinding is non-zero
+# See page 182 of the 3.1 specs.
+DrawBufferMode enum:
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT0
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT1
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT2
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT3
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT4
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT5
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT6
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT7
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT8
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT9
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT10
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT11
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT12
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT13
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT14
+	use ARB_framebuffer_object	    COLOR_ATTACHMENT15
+
 FramebufferAttachmentObjectType enum:
 	NONE													= 0
 	use ARB_framebuffer_object	    FRAMEBUFFER_DEFAULT
@@ -6917,7 +6937,7 @@ GetTextureParameter enum:
 	use ARB_framebuffer_object	    TEXTURE_LUMINANCE_TYPE
 	use ARB_framebuffer_object	    TEXTURE_INTENSITY_TYPE
 	use ARB_framebuffer_object	    TEXTURE_DEPTH_TYPE
-
+	
 # Promoted from ARB_depth_buffer_float
 PixelType enum:
 	use ARB_depth_buffer_float	    FLOAT_32_UNSIGNED_INT_24_8_REV
diff --git a/Source/OpenTK/Graphics/GL/GLEnums.cs b/Source/OpenTK/Graphics/GL/GLEnums.cs
index 93e71416..1b296c30 100644
--- a/Source/OpenTK/Graphics/GL/GLEnums.cs
+++ b/Source/OpenTK/Graphics/GL/GLEnums.cs
@@ -5213,6 +5213,22 @@ namespace OpenTK.Graphics
         Aux1 = ((int)0X040a),
         Aux2 = ((int)0X040b),
         Aux3 = ((int)0X040c),
+        ColorAttachment0 = ((int)0X8ce0),
+        ColorAttachment1 = ((int)0X8ce1),
+        ColorAttachment2 = ((int)0X8ce2),
+        ColorAttachment3 = ((int)0X8ce3),
+        ColorAttachment4 = ((int)0X8ce4),
+        ColorAttachment5 = ((int)0X8ce5),
+        ColorAttachment6 = ((int)0X8ce6),
+        ColorAttachment7 = ((int)0X8ce7),
+        ColorAttachment8 = ((int)0X8ce8),
+        ColorAttachment9 = ((int)0X8ce9),
+        ColorAttachment10 = ((int)0X8cea),
+        ColorAttachment11 = ((int)0X8ceb),
+        ColorAttachment12 = ((int)0X8cec),
+        ColorAttachment13 = ((int)0X8ced),
+        ColorAttachment14 = ((int)0X8cee),
+        ColorAttachment15 = ((int)0X8cef),
     }
 
     public enum DrawBuffersEnum