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Added static GetExtensionDelegate implementation

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Stefanos A 2013-11-22 20:06:04 +01:00
parent 2ace001203
commit ffe934fa5d
1 changed files with 20 additions and 0 deletions
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20
Source/OpenTK/Graphics/GraphicsBindingsBase.cs
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@ -26,6 +26,7 @@
#endregion #endregion
using System; using System;
using System.Runtime.InteropServices;
namespace OpenTK.Graphics namespace OpenTK.Graphics
{ {
@ -56,5 +57,24 @@ namespace OpenTK.Graphics
throw new GraphicsContextMissingException(); throw new GraphicsContextMissingException();
return context != null ? context.GetAddress(funcname) : IntPtr.Zero; return context != null ? context.GetAddress(funcname) : IntPtr.Zero;
} }
internal static Delegate GetExtensionDelegateStatic(string funcname, Type signature)
{
var context = GraphicsContext.CurrentContext as IGraphicsContextInternal;
if (context == null)
throw new GraphicsContextMissingException();
IntPtr address = context.GetAddress(funcname);
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);
}
}
} }
} }