{-# LANGUAGE ForeignFunctionInterface #-} {-# LANGUAGE TypeSynonymInstances #-} -- This source file is part of HGamer3D, a project to enable 3D game development -- in Haskell. For the latest info, see http://www.hgamer3d.org . -- -- (c) 2011-2014 Peter Althainz -- -- Licensed under the Apache License, Version 2.0 (the "License"); -- you may not use this file except in compliance with the License. -- You may obtain a copy of the License at -- -- http://www.apache.org/licenses/LICENSE-2.0 -- -- Unless required by applicable law or agreed to in writing, software -- distributed under the License is distributed on an "AS IS" BASIS, -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -- See the License for the specific language governing permissions and -- limitations under the License. -- -- StructDegrees.chs -- module HGamer3D.Bindings.Ogre.StructDegrees where import Foreign import Foreign.Ptr import Foreign.C import HGamer3D.Data.HG3DClass import HGamer3D.Data.Vector import HGamer3D.Data.Colour import HGamer3D.Data.Angle #include "StructDegrees.h" import Data.Bits import HGamer3D.Data.Angle instance Storable Degrees where alignment _ = alignment (undefined :: CDouble) sizeOf _ = {#sizeof degree_struct#} peek p = do d <- {#get degree_struct.d #} p let de = Degrees (realToFrac d) return de poke p (Degrees d) = do {#set degree_struct.d #} p (realToFrac d) {#pointer *degree_struct as DegreesPtr -> Degrees #} withDegrees :: Degrees -> (DegreesPtr -> IO b) -> IO b withDegrees = with peekDegrees :: DegreesPtr -> IO Degrees peekDegrees = peek