/// <summary>
/// Get the OpenGL context current on the calling thread.
/// </summary>
/// <returns>
/// It returns the handle of the OpenGL context current on the calling thread. It may return <see cref="IntPtr.Zero"/>
/// indicating that no OpenGL context is current.
/// </returns>
public static IntPtr GetCurrentContext()
{
#if !MONODROID
if (Egl.IsRequired == false)
{
switch (Platform.CurrentPlatformId)
{
case Platform.Id.WindowsNT:
return(Wgl.GetCurrentContext());
case Platform.Id.Linux:
return(Glx.GetCurrentContext());
case Platform.Id.MacOS:
if (Glx.IsRequired)
{
return(Glx.GetCurrentContext());
}
else
{
throw new NotSupportedException("platform MacOS not supported without Glx.IsRequired=true");
}
default:
throw new NotSupportedException(String.Format("platform {0} not supported", Platform.CurrentPlatformId));
}
}
else
#endif
return(Egl.GetCurrentContext());
}