Added GL4Generator that utilizes xml files instead of spec files.

Made GL4Generator the default.
Added FuncProcessor that will contain all function transforms.

Source/Bind/FuncProcessor.cs

@@ -0,0 +1,49 @@
+#region License
+//
+// The Open Toolkit Library License
+//
+// Copyright (c) 2006 - 2010 the Open Toolkit library.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights to 
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+//
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Xml.XPath;
+
+namespace Bind
+{
+    class FuncProcessor
+    {        
+        const string Path = "/overrides/replace/function[@name='{0}']";
+        XPathDocument Overrides { get; set; }
+
+        public FuncProcessor(XPathDocument overrides)
+        {
+            if (overrides == null)
+                throw new ArgumentNullException("overrides");
+
+            Overrides = overrides;
+        }
+    }
+}

Source/Bind/GL2/GL4Generator.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Bind.GL2
+{
+    class GL4Generator : ES.ESGenerator
+    {
+        public GL4Generator(string name, string dirname)
+			: base(name, dirname)
+        {
+            glTypemap = "GL2/gl.tm";
+            csTypemap = "csharp.tm";
+
+            enumSpec = "GL2/signatures.xml";
+            enumSpecExt = String.Empty;
+            glSpec = "GL2/signatures.xml";
+            glSpecExt = String.Empty;
+            functionOverridesFile = "GL2/gloverrides.xml";
+
+            importsFile = "GLCore.cs";
+            delegatesFile = "GLDelegates.cs";
+            enumsFile = "GLEnums.cs";
+            wrappersFile = "GL.cs";
+            Settings.ImportsClass = "Core";
+            Settings.DelegatesClass = "Delegates";
+
+            Settings.OutputClass = "GL";
+            Settings.OutputNamespace = "OpenTK.Graphics.OpenGL";
+            Settings.OutputPath = "../../../Source/OpenTK/Graphics/OpenGL";
+        }
+    }
+}

Source/Bind/Generator.Bind.csproj

@@ -139,6 +139,7 @@
     <Compile Include="..\GlobalAssemblyInfo.cs">
       <Link>Properties\GlobalAssemblyInfo.cs</Link>
     </Compile>
+    <Compile Include="FuncProcessor.cs" />
     <Compile Include="GL2\GL4Generator.cs" />
     <Compile Include="IBind.cs">
       <SubType>Code</SubType>
@@ -155,6 +156,7 @@
     <Compile Include="BindStreamWriter.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="EnumProcessor.cs" />
     <Compile Include="Utilities.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -944,6 +946,11 @@
     <None Include="Specifications\License.txt">
     </None>
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="Specifications\GL2\signatures.xml">
+      <SubType>Designer</SubType>
+    </Content>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSHARP.Targets" />
   <PropertyGroup>
     <PreBuildEvent>

Source/Bind/Main.cs

@@ -138,7 +138,7 @@ namespace Bind
                 switch (mode)
                 {
                     case GeneratorMode.GL2:
-                        Generator = new Generator();
+                        Generator = new GL4Generator("OpenGL", dirName);
                         break;
 
                     case GeneratorMode.ES10: