ryujinx/Opentk
1
0
Fork 0
mirror of https://github.com/Ryujinx/Opentk.git synced 2024-12-23 11:35:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implemented new loading mechanism

Browse source
This commit is contained in:
Stefanos A. 2013-11-24 13:57:43 +01:00
parent 7a57c9c3d2
commit 825ed3621f
1 changed files with 21 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
Source/OpenTK/Graphics/GraphicsBindingsBase.cs
View file

@ -35,6 +35,18 @@ namespace OpenTK.Graphics
/// </summary>
public abstract class GraphicsBindingsBase : BindingsBase
{
/// <summary>
/// Contains the list of API entry points (function pointers).
/// This field must be set by an inheriting class.
/// </summary>
protected IntPtr[] EntryPointsInstance;
/// <summary>
/// Contains the list of API entry point names.
/// This field must be set by an inheriting class.
/// </summary>
protected string[] EntryPointNamesInstance;
/// <summary>
/// Retrieves an unmanaged function pointer to the specified function.
/// </summary>
@ -58,22 +70,20 @@ namespace OpenTK.Graphics
return context != null ? context.GetAddress(funcname) : IntPtr.Zero;
}
internal static Delegate GetExtensionDelegateStatic(string funcname, Type signature)
// Loads all available entry points for the current API.
// Note: we prefer IGraphicsContextInternal.GetAddress over
// this.GetAddress to improve loading performance (less
// validation necessary.)
internal override void LoadEntryPoints()
{
var context = GraphicsContext.CurrentContext as IGraphicsContextInternal;
IGraphicsContext context = GraphicsContext.CurrentContext;
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.
IGraphicsContextInternal context_internal = context as IGraphicsContextInternal;
for (int i = 0; i < EntryPointsInstance.Length; i++)
{
return null;
}
else
{
return Marshal.GetDelegateForFunctionPointer(address, signature);
EntryPointsInstance[i] = context_internal.GetAddress(EntryPointNamesInstance[i]);
}
}
}