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{-# LANGUAGE ForeignFunctionInterface #-}
module Wayland.Server.System where
#include <wayland-server.h>
import Foreign (FunPtr, Ptr, Storable(..), Int32)
import Foreign.C (CString, CInt(..), CSize)
import Data.Word (Word32)
data WLMessage
= WLMessage { msgName :: CString
, msgSignature :: CString
, msgTypes :: Ptr (Ptr WLInterface)
}
deriving (Show)
data WLInterface
= WLInterface { ifName :: CString
, ifVersion :: CInt
, ifMethodCount :: CInt
, ifMethods :: Ptr WLMessage
, ifEventCount :: CInt
, ifEvents :: Ptr WLMessage
}
deriving (Show)
newtype WLFixed = WLFixed #{type wl_fixed_t}
deriving (Show)
data WLArray
= WLArray { arrSize :: CSize
, arrAlloc :: CSize
, arrData :: Ptr ()
}
deriving (Show)
data WLArgument = WLArgument
deriving (Show)
newtype WLDisplay = WLDisplay (Ptr WLDisplay) deriving (Show)
newtype WLEventLoop = WLEventLoop (Ptr WLEventLoop) deriving (Show)
newtype WLEventSource = WLEventSource (Ptr WLEventSource) deriving (Show)
newtype WLGlobal = WLGlobal (Ptr WLGlobal) deriving (Show)
newtype WLClient = WLClient (Ptr WLClient) deriving (Show)
newtype WLResource = WLResource (Ptr WLResource) deriving (Show)
type WLEventLoopSignalFunc = CInt -> Ptr () -> IO CInt
type WLGlobalBindFunc = WLClient -> Ptr () -> Word32 -> Word32 -> IO ()
type WLDispatcherFunc = Ptr () -> WLResource -> Word32 -> Ptr WLMessage -> Ptr WLArgument -> IO CInt
type WLResourceDestroyFunc = WLResource -> IO ()
foreign import ccall "wrapper"
wrapWLEventLoopSignalFunc :: WLEventLoopSignalFunc -> IO (FunPtr WLEventLoopSignalFunc)
foreign import ccall "wrapper"
wrapWLGlobalBindFunc :: WLGlobalBindFunc -> IO (FunPtr WLGlobalBindFunc)
foreign import ccall "wl_display_create"
wlDisplayCreate :: IO WLDisplay
foreign import ccall "wl_display_destroy"
wlDisplayDestroy :: WLDisplay -> IO ()
foreign import ccall "wl_display_add_socket_auto"
wlDisplayAddSocketAuto :: WLDisplay -> IO CString
foreign import ccall "wl_display_run"
wlDisplayRun :: WLDisplay -> IO ()
foreign import ccall "wl_display_terminate"
wlDisplayTerminate :: WLDisplay -> IO ()
foreign import ccall "wl_display_get_event_loop"
wlDisplayGetEventLoop :: WLDisplay -> IO WLEventLoop
foreign import ccall "wl_event_loop_add_signal"
wlEventLoopAddSignal :: WLEventLoop -> CInt -> FunPtr WLEventLoopSignalFunc -> Ptr () -> IO WLEventSource
foreign import ccall "wl_global_create"
wlGlobalCreate :: WLDisplay -> Ptr WLInterface -> CInt -> Ptr () -> FunPtr WLGlobalBindFunc -> IO WLGlobal
foreign import ccall "wl_resource_create"
wlResourceCreate :: WLClient -> Ptr WLInterface -> CInt -> Word32 -> IO WLResource
foreign import ccall "wl_resource_set_dispatcher"
wlResourceSetDispatcher :: WLResource -> FunPtr WLDispatcherFunc -> Ptr () -> Ptr () -> FunPtr WLResourceDestroyFunc -> IO ()
wlArgumentGetInt :: Ptr WLArgument -> IO Int32
wlArgumentGetInt = #{peek union wl_argument, i}
wlArgumentGetUInt :: Ptr WLArgument -> IO Word32
wlArgumentGetUInt = #{peek union wl_argument, u}
wlArgumentGetFixed :: Ptr WLArgument -> IO WLFixed
wlArgumentGetFixed = #{peek union wl_argument, f}
wlArgumentGetString :: Ptr WLArgument -> IO CString
wlArgumentGetString = #{peek union wl_argument, s}
wlArgumentGetObject :: Ptr WLArgument -> IO WLResource
wlArgumentGetObject = #{peek union wl_argument, o}
wlArgumentGetNewID :: Ptr WLArgument -> IO Word32
wlArgumentGetNewID = #{peek union wl_argument, n}
wlArgumentGetArray :: Ptr WLArgument -> IO (Ptr WLArray)
wlArgumentGetArray = #{peek union wl_argument, a}
wlArgumentGetFD :: Ptr WLArgument -> IO Int32
wlArgumentGetFD = #{peek union wl_argument, h}
instance Storable WLMessage where
sizeOf _ = #{size struct wl_message}
alignment _ = #{alignment struct wl_message}
peek p = do
name <- #{peek struct wl_message, name} p
signature <- #{peek struct wl_message, signature} p
types <- #{peek struct wl_message, types} p
return $ WLMessage { msgName = name
, msgSignature = signature
, msgTypes = types
}
poke p m = do
#{poke struct wl_message, name} p $ msgName m
#{poke struct wl_message, signature} p $ msgSignature m
#{poke struct wl_message, types} p $ msgTypes m
return ()
instance Storable WLInterface where
sizeOf _ = #{size struct wl_interface}
alignment _ = #{alignment struct wl_interface}
peek p = do
name <- #{peek struct wl_interface, name} p
version <- #{peek struct wl_interface, version} p
methodCount <- #{peek struct wl_interface, method_count} p
methods <- #{peek struct wl_interface, methods} p
eventCount <- #{peek struct wl_interface, event_count} p
events <- #{peek struct wl_interface, events} p
return $ WLInterface { ifName = name
, ifVersion = version
, ifMethodCount = methodCount
, ifMethods = methods
, ifEventCount = eventCount
, ifEvents = events
}
poke p m = do
#{poke struct wl_interface, name} p $ ifName m
#{poke struct wl_interface, version} p $ ifVersion m
#{poke struct wl_interface, method_count} p $ ifMethodCount m
#{poke struct wl_interface, methods} p $ ifMethods m
#{poke struct wl_interface, event_count} p $ ifEventCount m
#{poke struct wl_interface, events} p $ ifEvents m
return ()
|
