{-# LINE 2 "./Media/Streaming/GStreamer/Core/Init.chs" #-}
-- GIMP Toolkit (GTK) Binding for Haskell: binding to gstreamer -*-haskell-*-
--
-- Author : Peter Gavin
-- Created: 1-Apr-2007
--
-- Copyright (c) 2007 Peter Gavin
--
-- This library is free software: you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public License
-- as published by the Free Software Foundation, either version 3 of
-- the License, or (at your option) any later version.
--
-- This library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with this program. If not, see
-- <http:
--
-- GStreamer, the C library which this Haskell library depends on, is
-- available under LGPL Version 2. The documentation included with
-- this library is based on the original GStreamer documentation.
--
-- | Maintainer : gtk2hs-devel@lists.sourceforge.net
-- Stability : alpha
-- Portability : portable (depends on GHC)
module Media.Streaming.GStreamer.Core.Init (
  init,
  initCheck,
  deinit,
  version,
  versionString,

  segtrapIsEnabled,
  segtrapSetEnabled,
  registryForkIsEnabled,
  registryForkSetEnabled,


  updateRegistry

  ) where

import Control.Exception ( assert )
import Control.Monad ( liftM )
import Prelude hiding ( init )
import System.Glib.FFI
import System.Glib.GError
import System.Glib.UTFString ( peekUTFString )


{-# LINE 55 "./Media/Streaming/GStreamer/Core/Init.chs" #-}

init :: IO ()
init =
    gst_init nullPtr nullPtr

initCheck :: IO ()
initCheck =
    propagateGError $ \gErrorPtr ->
        do succeeded <- liftM toBool $
                        gst_init_check nullPtr nullPtr gErrorPtr
           assert (if succeeded
                      then gErrorPtr == nullPtr
                      else gErrorPtr /= nullPtr) $ return ()

deinit :: IO ()
deinit =
    gst_deinit
{-# LINE 72 "./Media/Streaming/GStreamer/Core/Init.chs" #-}

version :: (Word, Word, Word, Word)
version =
    unsafePerformIO $
    alloca $ \majorPtr ->
        alloca $ \minorPtr ->
            alloca $ \microPtr ->
                alloca $ \nanoPtr ->
                    do gst_version majorPtr minorPtr microPtr nanoPtr
                       major <- peek majorPtr
                       minor <- peek minorPtr
                       micro <- peek microPtr
                       nano <- peek nanoPtr
                       return (fromIntegral major,
                               fromIntegral minor,
                               fromIntegral micro,
                               fromIntegral nano)

versionString :: String
versionString =
    unsafePerformIO $
    gst_version_string >>= peekUTFString


segtrapIsEnabled :: IO Bool
segtrapIsEnabled =
    liftM toBool gst_segtrap_is_enabled
{-# LINE 99 "./Media/Streaming/GStreamer/Core/Init.chs" #-}

segtrapSetEnabled :: Bool
                  -> IO ()
segtrapSetEnabled enabled =
    gst_segtrap_set_enabled $ fromBool enabled

registryForkIsEnabled :: IO Bool
registryForkIsEnabled =
    liftM toBool gst_registry_fork_is_enabled
{-# LINE 108 "./Media/Streaming/GStreamer/Core/Init.chs" #-}

registryForkSetEnabled :: Bool
                       -> IO ()
registryForkSetEnabled enabled =
    gst_registry_fork_set_enabled $ fromBool enabled



updateRegistry :: IO Bool
updateRegistry =
    liftM toBool gst_update_registry
{-# LINE 119 "./Media/Streaming/GStreamer/Core/Init.chs" #-}

foreign import ccall safe "gst_init"
  gst_init :: ((Ptr CInt) -> ((Ptr (Ptr (Ptr CChar))) -> (IO ())))

foreign import ccall safe "gst_init_check"
  gst_init_check :: ((Ptr CInt) -> ((Ptr (Ptr (Ptr CChar))) -> ((Ptr (Ptr ())) -> (IO CInt))))

foreign import ccall safe "gst_deinit"
  gst_deinit :: (IO ())

foreign import ccall safe "gst_version"
  gst_version :: ((Ptr CUInt) -> ((Ptr CUInt) -> ((Ptr CUInt) -> ((Ptr CUInt) -> (IO ())))))

foreign import ccall safe "gst_version_string"
  gst_version_string :: (IO (Ptr CChar))

foreign import ccall safe "gst_segtrap_is_enabled"
  gst_segtrap_is_enabled :: (IO CInt)

foreign import ccall safe "gst_segtrap_set_enabled"
  gst_segtrap_set_enabled :: (CInt -> (IO ()))

foreign import ccall safe "gst_registry_fork_is_enabled"
  gst_registry_fork_is_enabled :: (IO CInt)

foreign import ccall safe "gst_registry_fork_set_enabled"
  gst_registry_fork_set_enabled :: (CInt -> (IO ()))

foreign import ccall safe "gst_update_registry"
  gst_update_registry :: (IO CInt)