///////////////////////////////////////////////////////////////////////////////////////////////////////////
//TODO: review here, this is our custom OpenGLContext
//eg, used with glfw
GraphicsContext(OpenTK.Platform.External.ExternalGraphicsContext externalGraphicsContext)
{
implementation = externalGraphicsContext;
lock (SyncRoot)
{
IsExternal = true;
//if (handle == ContextHandle.Zero)
//{
// implementation = new OpenTK.Platform.Dummy.DummyGLContext(handle);
//}
//else if (available_contexts.ContainsKey(handle))
//{
// throw new GraphicsContextException("Context already exists.");
//}
//else
//{
// switch ((flags & GraphicsContextFlags.Embedded) == GraphicsContextFlags.Embedded)
// {
// case false: implementation = Factory.Default.CreateGLContext(handle, window, shareContext, direct_rendering, major, minor, flags); break;
// case true: implementation = Factory.Embedded.CreateGLContext(handle, window, shareContext, direct_rendering, major, minor, flags); break;
// }
//}
available_contexts.Add((implementation as IGraphicsContextInternal).Context, new WeakReference(this));
(this as IGraphicsContextInternal).LoadAll();
GetCurrentContextDelegate temp = externalGraphicsContext.CreateCurrentContextDel();
if (temp != null)
{
GetCurrentContext = temp;
}
}
}
GraphicsContext(OpenTK.Platform.External.ExternalGraphicsContext externalGraphicsContext)
{
implementation = externalGraphicsContext;
lock (SyncRoot)
{
// Angle needs an embedded context
//const GraphicsContextFlags useAngleFlag = GraphicsContextFlags.Angle
// | GraphicsContextFlags.AngleD3D9
// | GraphicsContextFlags.AngleD3D11
// | GraphicsContextFlags.AngleOpenGL;
bool useAngle = true;
try
{
IsExternal = true;
IPlatformFactory factory = Factory.Embedded;
// Note: this approach does not allow us to mix native and EGL contexts in the same process.
// This should not be a problem, as this use-case is not interesting for regular applications.
// Note 2: some platforms may not support a direct way of getting the current context
// (this happens e.g. with DummyGLContext). In that case, we use a slow fallback which
// iterates through all known contexts and checks if any is current (check GetCurrentContext
// declaration).
if (GetCurrentContext == null)
{
GetCurrentContext = externalGraphicsContext.CreateCurrentContextDel(); // factory.CreateGetCurrentGraphicsContext();
}
available_contexts.Add((implementation as IGraphicsContextInternal).Context, this);
(this as IGraphicsContextInternal).LoadAll();
handle_cached = ((IGraphicsContextInternal)implementation).Context;
factory.RegisterResource(this);
}
catch (Exception ex)
{
}
}
}
