1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
|
/* -----------------------------------------------------------------------------
*
* Module : GLUT extension support for Graphics.UI.GLUT
* Copyright : (c) Sven Panne 2002-2005
* License : BSD-style (see the file libraries/OpenGL/LICENSE)
*
* Maintainer : sven.panne@aedion.de
* Stability : provisional
* Portability : portable
*
* This header should only define preprocessor macros!
*
* -------------------------------------------------------------------------- */
#ifndef HSGLUTEXT_H
#define HSGLUTEXT_H
/* NOTE: The macro must immediately start with the foreign declaration,
otherwise the magic mangler (hack_foreign) in the Hugs build system
doesn't recognize it. */
#define EXTENSION_ENTRY(_saftey,_msg,_entry,_ty) \
foreign import CALLCONV _saftey "dynamic" dyn_/**/_entry :: Graphics.UI.GLUT.Extensions.Invoker (_ty) ; \
_entry :: (_ty) ; \
_entry = dyn_/**/_entry ptr_/**/_entry ; \
ptr_/**/_entry :: FunPtr a ; \
ptr_/**/_entry = unsafePerformIO (Graphics.UI.GLUT.Extensions.getProcAddress (_msg) ("_entry")) ; \
{-# NOINLINE ptr_/**/_entry #-}
#endif
|