772 lines
29 KiB
C#
772 lines
29 KiB
C#
#region --- License ---
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/* Copyright (c) 2006-2008 the OpenTK team.
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* See license.txt for license info
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*
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* Contributions by Andy Gill.
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*/
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#endregion
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#region --- Using Directives ---
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Runtime.InteropServices;
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using System.Reflection;
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using System.Diagnostics;
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using System.Reflection.Emit;
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using OpenTK.Math;
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using OpenTK.OpenGL.Enums;
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#endregion
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[assembly: CLSCompliant(true)]
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namespace OpenTK.OpenGL
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{
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/// <summary>
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/// OpenGL binding for .NET, implementing OpenGL 2.1, plus extensions.
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/// </summary>
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/// <remarks>
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/// <para>
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/// This class contains all OpenGL enums and functions defined in the 2.1 specification.
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/// The official .spec files can be found at: http://opengl.org/registry/.
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/// </para>
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/// <para> A valid OpenGL context must be created before calling any OpenGL function.</para>
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/// <para>
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/// Use the GL.Load and GL.LoadAll methods to prepare function entry points prior to use. To maintain
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/// cross-platform compatibility, this must be done for both core and extension functions. The GameWindow
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/// and the GLControl class will take care of this automatically.
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/// </para>
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/// <para>
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/// You can use the GL.SupportsExtension method to check whether any given category of extension functions
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/// exists in the current OpenGL context. Keep in mind that different OpenGL contexts may support different
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/// extensions, and under different entry points. Always check if all required extensions are still supported
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/// when changing visuals or pixel formats.
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/// </para>
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/// <para>
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/// You may retrieve the entry point for an OpenGL function using the GL.GetDelegate method.
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/// </para>
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/// </remarks>
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/// <see href="http://opengl.org/registry/"/>
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/// <seealso cref="GL.SupportsExtension"/>
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/// <seealso cref="GL.GetDelegate"/>
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/// <seealso cref="GL.LoadAll"/>
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/// <seealso cref="GL.Load"/>
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public static partial class GL
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{
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delegate void VoidGLDelegate(object @class, object[] parameters);
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delegate object ObjectGLDelegate(object @class, object[] parameters);
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#region --- Fields ---
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internal const string Library = "opengl32.dll";
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static StringBuilder sb = new StringBuilder();
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static object gl_lock = new object();
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private static SortedList<string, bool> AvailableExtensions = new SortedList<string, bool>();
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private static bool rebuildExtensionList;
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private static Type glClass;
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private static Type delegatesClass;
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private static Type importsClass;
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#endregion
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#region --- Constructor ---
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static GL()
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{
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glClass = typeof(GL);
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delegatesClass = glClass.GetNestedType("Delegates", BindingFlags.Static | BindingFlags.NonPublic);
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importsClass = glClass.GetNestedType("Imports", BindingFlags.Static | BindingFlags.NonPublic);
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}
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#endregion
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#region --- Imports ---
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internal static partial class Imports
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{
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internal static SortedList<string, MethodInfo> FunctionMap; // This is faster than either Dictionary or SortedDictionary
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static Imports()
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{
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MethodInfo[] methods = importsClass.GetMethods(BindingFlags.Static | BindingFlags.NonPublic);
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FunctionMap = new SortedList<string, MethodInfo>(methods.Length);
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foreach (MethodInfo m in methods)
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{
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FunctionMap.Add(m.Name, m);
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}
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}
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}
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#endregion
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#region --- Public Methods ---
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#region public static bool SupportsExtension(string name)
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/// <summary>
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/// Determines whether the specified OpenGL extension category is available in
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/// the current OpenGL context. Equivalent to IsExtensionSupported(name, true)
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/// </summary>
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/// <param name="name">The string for the OpenGL extension category (eg. "GL_ARB_multitexture")</param>
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/// <returns>True if the specified extension is available, false otherwise.</returns>
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public static bool SupportsExtension(string name)
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{
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if (rebuildExtensionList)
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BuildExtensionList();
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lock (gl_lock)
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{
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sb.Remove(0, sb.Length);
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if (!name.StartsWith("GL_"))
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sb.Append("gl_");
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sb.Append(name.ToLower());
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// Search the cache for the string.
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return AvailableExtensions.ContainsKey(sb.ToString());
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}
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}
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#endregion
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#region public static Delegate GetDelegate(string name)
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/// <summary>
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/// Returns a System.Delegate wrapping the specified OpenGL function. You must use the
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/// base OpenGL name of the function (e.g. "glVertex3fv" instead of "Vertex3").
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/// </summary>
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/// <param name="name">The name of the OpenGL function (eg. "glNewList")</param>
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/// <param name="signature">The signature of the OpenGL function.</param>
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/// <returns>
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/// A System.Delegate that can be used to call this OpenGL function or null, if the specified
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/// function name does not correspond to an OpenGL function or if the function is not
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/// supported by the video drivers.
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/// </returns>
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public static Delegate GetDelegate(string name)
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{
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FieldInfo info = typeof(Delegates).GetField(name, BindingFlags.Static | BindingFlags.NonPublic);
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if (info == null)
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return null;
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return (Delegate)info.GetValue(null);
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}
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#endregion
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#region public static Delegate GetDelegate(string name, Type signature)
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/// <summary>
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/// Returns a System.Delegate wrapping an OpenGL function.
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/// </summary>
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/// <param name="name">The name of the OpenGL function (eg. "glNewList")</param>
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/// <param name="signature">The signature of the OpenGL function.</param>
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/// <returns>
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/// A System.Delegate that can be used to call this OpenGL function, or null if the specified
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/// function name did not correspond to an OpenGL function.
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/// </returns>
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[Obsolete("Use GetDelegate(string name) instead.")]
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public static Delegate GetDelegate(string name, Type signature)
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{
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return LoadDelegate(name, signature);
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}
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#endregion
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#region public static void LoadAll()
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/// <summary>
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/// Loads all OpenGL functions (core and extensions).
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/// </summary>
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/// <remarks>
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/// <para>
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/// This function will be automatically called the first time you use any opengl function. There is
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/// </para>
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/// <para>
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/// Call this function manually whenever you need to update OpenGL entry points.
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/// This need may arise if you change the pixelformat/visual, or in case you cannot
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/// (or do not want) to use the automatic initialization of the GL class.
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/// </para>
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/// </remarks>
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public static void LoadAll()
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{
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//TODO: Route GameWindow context creation through GLContext.
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//if (GLContext.CurrentContext == null)
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// throw new InvalidOperationException("You must create an OpenGL context before using the GL class.");
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OpenTK.Platform.Utilities.LoadExtensions(glClass);
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}
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#endregion
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#region public static bool Load(string function)
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/// <summary>
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/// Tries to reload the given OpenGL function (core or extension).
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/// </summary>
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/// <param name="name">The name of the OpenGL function (i.e. glShaderSource)</param>
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/// <returns>True if the function was found and reloaded, false otherwise.</returns>
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/// <remarks>
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/// <para>
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/// Use this function if you require greater granularity when loading OpenGL entry points.
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/// </para>
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/// <para>
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/// While the automatic initialisation will load all OpenGL entry points, in some cases
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/// the initialisation can take place before an OpenGL Context has been established.
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/// In this case, use this function to load the entry points for the OpenGL functions
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/// you will need, or use ReloadFunctions() to load all available entry points.
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/// </para>
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/// <para>
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/// This function returns true if the given OpenGL function is supported, false otherwise.
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/// </para>
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/// <para>
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/// To query for supported extensions use the IsExtensionSupported() function instead.
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/// </para>
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/// </remarks>
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public static bool Load(string function)
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{
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FieldInfo f = delegatesClass.GetField(function, BindingFlags.Static | BindingFlags.NonPublic);
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if (f == null)
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return false;
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Delegate old = f.GetValue(null) as Delegate;
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Delegate @new = LoadDelegate(f.Name, f.FieldType);
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if (old.Target != @new.Target)
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{
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f.SetValue(null, @new);
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rebuildExtensionList = true;
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}
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return @new != null;
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}
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#endregion
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#region static Delegate LoadDelegate(string name, Type signature)
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/// <private />
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/// <summary>
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/// Loads an OpenGL function into a type-safe System.Delegate.
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/// </summary>
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/// <param name="name">The name of the OpenGL function (eg. "glNewList")</param>
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/// <param name="signature">The signature of the OpenGL function.</param>
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/// <returns>
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/// A System.Delegate that can be used to call this OpenGL function, or null if the specified
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/// function name did not correspond to an OpenGL function.
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/// </returns>
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static Delegate LoadDelegate(string name, Type signature)
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{
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MethodInfo m;
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return
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GetExtensionDelegate(name, signature) ??
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/*((m = importsClass.GetMethod(name.Substring(2), BindingFlags.Static | BindingFlags.NonPublic)) != null ?*/
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(Imports.FunctionMap.TryGetValue((name.Substring(2)), out m) ?
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Delegate.CreateDelegate(signature, m) : null);
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}
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#endregion
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#region public static bool SupportsFunction(string function)
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/// <summary>
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/// Checks if a given OpenGL function is supported by the current context
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/// </summary>
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/// <param name="function">The name of the OpenGL function (i.e. glShaderSource)</param>
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/// <returns>True if the function is supported, false otherwise</returns>
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public static bool SupportsFunction(string function)
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{
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lock (gl_lock)
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{
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if (function == null)
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throw new ArgumentNullException("function");
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sb.Remove(0, sb.Length);
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if (!function.StartsWith("gl"))
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sb.Append("gl");
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sb.Append(function);
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FieldInfo f = delegatesClass.GetField(sb.ToString(), BindingFlags.Static | BindingFlags.NonPublic);
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if (f == null)
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return false;
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return f.GetValue(null) != null;
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}
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}
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#endregion
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#region public static bool SupportsFunction(string function, string extension)
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/// <summary>
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/// Checks if a given OpenGL function is supported by the current context
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/// </summary>
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/// <param name="function">The name of the OpenGL function (e.g. glShaderSource)</param>
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/// <param name="extension">The name of the extension catagory (e.g. ARB, EXT, ATI, ...)</param>
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/// <returns>True if the function is supported, false otherwise</returns>
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public static bool SupportsFunction(string function, string extension)
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{
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lock (gl_lock)
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{
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if (function == null)
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throw new ArgumentNullException("function");
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if (extension == null)
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throw new ArgumentNullException("extension");
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sb.Remove(0, sb.Length);
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if (!function.StartsWith("gl"))
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sb.Append("gl");
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sb.Append(function);
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if (!function.EndsWith(extension))
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sb.Append(extension);
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FieldInfo f = delegatesClass.GetField(sb.ToString(), BindingFlags.Static | BindingFlags.NonPublic);
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if (f == null)
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return false;
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return f.GetValue(null) != null;
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}
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}
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#endregion
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#region public static bool SupportsFunction(Type function)
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/// <summary>
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/// Checks if a given OpenGL function is supported by the current context
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/// </summary>
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/// <param name="function">The name of the OpenGL function (e.g. glShaderSource)</param>
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/// <param name="extension">The name of the extension catagory (e.g. ARB, EXT, ATI, ...)</param>
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/// <returns>True if the function is supported, false otherwise</returns>
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public static bool SupportsFunction(MethodInfo method)
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{
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lock (gl_lock)
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{
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/*
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if (function == null)
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throw new ArgumentNullException("function");
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sb.Remove(0, sb.Length);
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if (!function.Name.StartsWith("gl"))
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sb.Append("gl");
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sb.Append(function);
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//if (!function.EndsWith(extension))
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// sb.Append(extension);
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FieldInfo f = delegatesClass.GetField(sb.ToString(), BindingFlags.Static | BindingFlags.NonPublic);
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if (f == null)
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return false;
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return f.GetValue(null) != null;
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*/
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return false;
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}
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}
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#endregion
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#region private static void BuildExtensionList()
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/// <summary>
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/// Builds a cache of the supported extensions to speed up searches.
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/// </summary>
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private static void BuildExtensionList()
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{
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// Assumes there is an opengl context current.
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AvailableExtensions.Clear();
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string version_string = GL.GetString(StringName.Version);
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if (String.IsNullOrEmpty(version_string))
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{
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throw new ApplicationException("Failed to build extension list. Is there an opengl context current?");
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}
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string version;
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// Most drivers return the version in the 3 first characters of the version string,
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// (e.g. on Ati X1950 with Catalyst 7.10 -> "2.0.6956 Release"). However, Mesa seems
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// to do something strange: "1.4 (2.1 Mesa 7.0.1).".
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// We'll do some trickery to get the second number (2.1), but this may break on
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// some implementations...
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if (version_string.ToLower().Contains("mesa"))
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{
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int index = version_string.IndexOf('(');
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if (index != -1)
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version = version_string.Substring(index + 1, 3);
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else
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version = version_string.TrimStart(' ');
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}
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else
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version = version_string.TrimStart(' ');
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Debug.Print(version);
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if (version.StartsWith("1.2"))
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{
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AvailableExtensions.Add("gl_version_1_1", true);
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AvailableExtensions.Add("gl_version_1_2", true);
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}
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else if (version.StartsWith("1.3"))
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{
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AvailableExtensions.Add("gl_version_1_1", true);
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AvailableExtensions.Add("gl_version_1_2", true);
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AvailableExtensions.Add("gl_version_1_3", true);
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}
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else if (version.StartsWith("1.4"))
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{
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AvailableExtensions.Add("gl_version_1_1", true);
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AvailableExtensions.Add("gl_version_1_2", true);
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AvailableExtensions.Add("gl_version_1_3", true);
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AvailableExtensions.Add("gl_version_1_4", true);
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}
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else if (version.StartsWith("1.5"))
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{
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AvailableExtensions.Add("gl_version_1_1", true);
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AvailableExtensions.Add("gl_version_1_2", true);
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AvailableExtensions.Add("gl_version_1_3", true);
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AvailableExtensions.Add("gl_version_1_4", true);
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AvailableExtensions.Add("gl_version_1_5", true);
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}
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else if (version.StartsWith("2.0"))
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{
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AvailableExtensions.Add("gl_version_1_1", true);
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AvailableExtensions.Add("gl_version_1_2", true);
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AvailableExtensions.Add("gl_version_1_3", true);
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AvailableExtensions.Add("gl_version_1_4", true);
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AvailableExtensions.Add("gl_version_1_5", true);
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AvailableExtensions.Add("gl_version_2_0", true);
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}
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else if (version.StartsWith("2.1"))
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{
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AvailableExtensions.Add("gl_version_1_1", true);
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AvailableExtensions.Add("gl_version_1_2", true);
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AvailableExtensions.Add("gl_version_1_3", true);
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AvailableExtensions.Add("gl_version_1_4", true);
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AvailableExtensions.Add("gl_version_1_5", true);
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AvailableExtensions.Add("gl_version_2_0", true);
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AvailableExtensions.Add("gl_version_2_1", true);
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}
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string extension_string = GL.GetString(Enums.StringName.Extensions);
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if (String.IsNullOrEmpty(extension_string))
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return; // no extensions are available
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string[] extensions = extension_string.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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foreach (string ext in extensions)
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AvailableExtensions.Add(ext.ToLower(), true);
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foreach (string s in AvailableExtensions.Keys)
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Debug.Print(s);
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rebuildExtensionList = false;
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}
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#endregion
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#endregion
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#region --- GetProcAddress ---
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private static IGetProcAddress getProcAddress;
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internal interface IGetProcAddress
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{
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IntPtr GetProcAddress(string function);
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}
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internal class GetProcAddressWindows : IGetProcAddress
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{
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[System.Runtime.InteropServices.DllImport(Library, EntryPoint = "wglGetProcAddress", ExactSpelling = true)]
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private static extern IntPtr wglGetProcAddress(String lpszProc);
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public IntPtr GetProcAddress(string function)
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{
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return wglGetProcAddress(function);
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}
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}
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internal class GetProcAddressX11 : IGetProcAddress
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{
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[DllImport(Library, EntryPoint = "glXGetProcAddress")]
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private static extern IntPtr glxGetProcAddress([MarshalAs(UnmanagedType.LPTStr)] string procName);
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public IntPtr GetProcAddress(string function)
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{
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return glxGetProcAddress(function);
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}
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}
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internal class GetProcAddressOSX : IGetProcAddress
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{
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private const string Library = "libdl.dylib";
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[DllImport(Library, EntryPoint = "NSIsSymbolNameDefined")]
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private static extern bool NSIsSymbolNameDefined(string s);
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[DllImport(Library, EntryPoint = "NSLookupAndBindSymbol")]
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private static extern IntPtr NSLookupAndBindSymbol(string s);
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[DllImport(Library, EntryPoint = "NSAddressOfSymbol")]
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private static extern IntPtr NSAddressOfSymbol(IntPtr symbol);
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public IntPtr GetProcAddress(string function)
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{
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string fname = "_" + function;
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if (!NSIsSymbolNameDefined(fname))
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return IntPtr.Zero;
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IntPtr symbol = NSLookupAndBindSymbol(fname);
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if (symbol != IntPtr.Zero)
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symbol = NSAddressOfSymbol(symbol);
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return symbol;
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}
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}
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#region private static IntPtr GetAddress(string function)
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/// <summary>
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/// Retrieves the entry point for a dynamically exported OpenGL function.
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/// </summary>
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|
/// <param name="name">The function string for the OpenGL function (eg. "glNewList")</param>
|
|
/// <returns>
|
|
/// An IntPtr contaning the address for the entry point, or IntPtr.Zero if the specified
|
|
/// OpenGL function is not dynamically exported.
|
|
/// </returns>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// The Marshal.GetDelegateForFunctionPointer method can be used to turn the return value
|
|
/// into a call-able delegate.
|
|
/// </para>
|
|
/// <para>
|
|
/// This function is cross-platform. It determines the underlying platform and uses the
|
|
/// correct wgl, glx or agl GetAddress function to retrieve the function pointer.
|
|
/// </para>
|
|
/// <see cref="Marshal.GetDelegateForFunctionPointer"/>
|
|
/// <seealso cref="Gl.GetDelegateForExtensionMethod"/>
|
|
/// </remarks>
|
|
private static IntPtr GetAddress(string function)
|
|
{
|
|
if (getProcAddress == null)
|
|
{
|
|
if (System.Environment.OSVersion.Platform == PlatformID.Win32NT ||
|
|
System.Environment.OSVersion.Platform == PlatformID.Win32S ||
|
|
System.Environment.OSVersion.Platform == PlatformID.Win32Windows ||
|
|
System.Environment.OSVersion.Platform == PlatformID.WinCE)
|
|
{
|
|
getProcAddress = new GetProcAddressWindows();
|
|
}
|
|
else if (System.Environment.OSVersion.Platform == PlatformID.Unix)
|
|
{
|
|
getProcAddress = new GetProcAddressX11();
|
|
}
|
|
else
|
|
{
|
|
throw new PlatformNotSupportedException(
|
|
"Extension loading is only supported under X11 and Windows. We are sorry for the inconvience.");
|
|
}
|
|
}
|
|
|
|
return getProcAddress.GetProcAddress(function);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region internal static Delegate GetExtensionDelegate(string name, Type signature)
|
|
|
|
/// <summary>
|
|
/// Creates a System.Delegate that can be used to call a dynamically exported OpenGL function.
|
|
/// </summary>
|
|
/// <param name="name">The name of the OpenGL function (eg. "glNewList")</param>
|
|
/// <param name="signature">The signature of the OpenGL function.</param>
|
|
/// <returns>
|
|
/// A System.Delegate that can be used to call this OpenGL function or null
|
|
/// if the function is not available in the current OpenGL context.
|
|
/// </returns>
|
|
internal static Delegate GetExtensionDelegate(string name, Type signature)
|
|
{
|
|
IntPtr address = GetAddress(name);
|
|
|
|
if (address == IntPtr.Zero ||
|
|
address == new IntPtr(1) || // Workaround for buggy nvidia drivers which return
|
|
address == new IntPtr(2)) // 1 or 2 instead of IntPtr.Zero for some extensions.
|
|
{
|
|
return null;
|
|
}
|
|
else
|
|
{
|
|
return Marshal.GetDelegateForFunctionPointer(address, signature);
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#endregion
|
|
|
|
#region --- GL Overloads ---
|
|
|
|
#region public static void Color[34]() overloads
|
|
|
|
public static void Color3(System.Drawing.Color color)
|
|
{
|
|
GL.Color3(color.R, color.G, color.B);
|
|
}
|
|
|
|
public static void Color4(System.Drawing.Color color)
|
|
{
|
|
GL.Color4(color.R, color.G, color.B, color.A);
|
|
}
|
|
|
|
public static void Color3(Vector3 color)
|
|
{
|
|
GL.Color3(color.X, color.Y, color.Z);
|
|
}
|
|
|
|
public static void Color4(Vector4 color)
|
|
{
|
|
GL.Color4(color.X, color.Y, color.Z, color.W);
|
|
}
|
|
|
|
|
|
#endregion
|
|
|
|
#region public static void ClearColor() overloads
|
|
|
|
public static void ClearColor(System.Drawing.Color color)
|
|
{
|
|
GL.ClearColor(color.R/255.0f, color.G/255.0f, color.B/255.0f, color.A/255.0f);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region overloads using OpenTK.Math classes
|
|
|
|
public static void Normal3(Vector3 normal)
|
|
{
|
|
Delegates.glNormal3f(normal.X, normal.Y, normal.Z);
|
|
}
|
|
|
|
public static void RasterPos2(Vector2 pos)
|
|
{
|
|
Delegates.glRasterPos2f(pos.X, pos.Y);
|
|
}
|
|
|
|
public static void RasterPos3(Vector3 pos)
|
|
{
|
|
Delegates.glRasterPos3f(pos.X, pos.Y, pos.Z);
|
|
}
|
|
|
|
public static void RasterPos4(Vector4 pos)
|
|
{
|
|
Delegates.glRasterPos4f(pos.X, pos.Y, pos.Z, pos.W);
|
|
}
|
|
|
|
public static void Vertex2(Vector2 v)
|
|
{
|
|
Delegates.glVertex2f(v.X, v.Y);
|
|
}
|
|
|
|
public static void Vertex3(Vector3 v)
|
|
{
|
|
Delegates.glVertex3f(v.X, v.Y, v.Z);
|
|
}
|
|
|
|
public static void Vertex4(Vector4 v)
|
|
{
|
|
Delegates.glVertex4f(v.X, v.Y, v.Z, v.W);
|
|
}
|
|
|
|
public static void TexCoord2(Vector2 v)
|
|
{
|
|
Delegates.glTexCoord2f(v.X, v.Y);
|
|
}
|
|
|
|
public static void TexCoord3(Vector3 v)
|
|
{
|
|
Delegates.glTexCoord3f(v.X, v.Y, v.Z);
|
|
}
|
|
|
|
public static void TexCoord4(Vector4 v)
|
|
{
|
|
Delegates.glTexCoord4f(v.X, v.Y, v.Z, v.W);
|
|
}
|
|
|
|
public static void Rotate(Single angle, Vector3 axis)
|
|
{
|
|
Delegates.glRotatef((Single)angle, axis.X, axis.Y, axis.Z);
|
|
}
|
|
|
|
public static void Scale(Vector3 scale)
|
|
{
|
|
Delegates.glScalef(scale.X, scale.Y, scale.Z);
|
|
}
|
|
|
|
public static void Translate(Vector3 trans)
|
|
{
|
|
Delegates.glTranslatef(trans.X, trans.Y, trans.Z);
|
|
}
|
|
|
|
public static void MultMatrix(Matrix4 mat)
|
|
{
|
|
MultMatrix(ref mat.Row0.X);
|
|
}
|
|
|
|
public static void Materialv(MaterialFace face, MaterialParameter pname, Vector4 @params)
|
|
{
|
|
unsafe
|
|
{
|
|
Materialv(face, pname, &@params.X);
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region public static void ShaderSource(Int32 shader, System.String @string)
|
|
|
|
public static void ShaderSource(Int32 shader, System.String @string)
|
|
{
|
|
unsafe
|
|
{
|
|
int length = @string.Length;
|
|
Delegates.glShaderSource((UInt32)shader, 1, new string[] { @string }, &length);
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region public static void GetShaderInfoLog(Int32 shader, out string info)
|
|
|
|
public static void GetShaderInfoLog(Int32 shader, out string info)
|
|
{
|
|
unsafe
|
|
{
|
|
int length;
|
|
GL.GetShader(shader, ShaderParameter.InfoLogLength, out length);
|
|
if (length == 0)
|
|
{
|
|
info = "";
|
|
return;
|
|
}
|
|
StringBuilder sb = new StringBuilder(length);
|
|
Delegates.glGetShaderInfoLog((UInt32)shader, sb.Capacity, &length, sb);
|
|
info = sb.ToString();
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region public static void PointParameter(PointSpriteCoordOriginParameter param)
|
|
|
|
/// <summary>
|
|
/// Helper function that defines the coordinate origin of the Point Sprite.
|
|
/// </summary>
|
|
/// <param name="param">
|
|
/// A OpenTK.OpenGL.GL.PointSpriteCoordOriginParameter token,
|
|
/// denoting the origin of the Point Sprite.
|
|
/// </param>
|
|
public static void PointParameter(PointSpriteCoordOriginParameter param)
|
|
{
|
|
GL.PointParameter(PointParameterName.PointSpriteCoordOrigin, (int)param);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#endregion
|
|
}
|
|
}
|