htanks/Bindings/GLX.hs

{-# INCLUDE <GL/glx.h> #-}
{-# LINE 1 "GLX.chs" #-}
{-# LANGUAGE ForeignFunctionInterface, DeriveDataTypeable, GeneralizedNewtypeDeriving #-}
{-# LINE 2 "GLX.chs" #-}

module Bindings.GLX ( createColormap
                    , createWindow
                    , setClassHint
                    , chooseFBConfig
                    , getVisualFromFBConfig
                    , VisualInfo(..)
                    , SetWindowAttributes(..)
                    , nullSetWindowAttributes
                    , renderType
                    , rgbaBit
                    , drawableType
                    , windowBit
                    , xRenderable
                    , doublebuffer
                    , depthSize
                    , stencilSize
                    , createContext
                    , makeCurrent
                    , destroyContext
                    , swapBuffers
                    , Context(..)
                    , Drawable
       		    ) where

import Data.Generics
import Data.Int
import Data.Word

import Foreign.C.String (withCString)
import Foreign.C.Types
import Foreign.Ptr
import Foreign.Marshal.Alloc (alloca, allocaBytes)
import Foreign.Marshal.Array (peekArray, withArray0)
import Foreign.Storable

import Graphics.X11.Types (AttributeMask, Colormap, ColormapAlloc, Cursor, EventMask, Pixmap, Window, WindowClass, VisualID, XID)
import Graphics.X11.Xlib.Extras (none, xFree, ClassHint, resName, resClass, TextProperty)
import Graphics.X11.Xlib.Types (Dimension, Display, Pixel, Position)



{-# LINE 44 "GLX.chs" #-}


type Drawable = XID

newtype FBConfig = FBConfig (Ptr FBConfig)
    deriving (Eq, Ord, Show, Typeable, Data, Storable)

newtype Context = Context (Ptr Context)
    deriving (Eq, Ord, Show, Typeable, Data, Storable)

newtype Visual = Visual (Ptr Visual)
     deriving (Eq, Ord, Show, Typeable, Data, Storable)

data VisualInfo = VisualInfo
    { viVisual       :: !Visual
    , viVisualid     :: !VisualID
    , viScreen       :: !CInt
    , viDepth        :: !CInt
    , viClass        :: !CInt
    , viRedMask      :: !CULong
    , viGreenMask    :: !CULong
    , viBlueMask     :: !CULong
    , viColormapSize :: !CInt
    , viBitsPerRgb   :: !CInt
    } deriving (Eq, Ord, Show, Typeable)

instance Storable VisualInfo where
    sizeOf _ = ((40))
{-# LINE 72 "GLX.chs" #-}
    alignment _ = alignment (undefined :: CULong)
    
    peek vi = do
      visual <- ((\hsc_ptr -> peekByteOff hsc_ptr 0)) vi
{-# LINE 76 "GLX.chs" #-}
      visualid <- ((\hsc_ptr -> peekByteOff hsc_ptr 4)) vi
{-# LINE 77 "GLX.chs" #-}
      screen <- ((\hsc_ptr -> peekByteOff hsc_ptr 8)) vi
{-# LINE 78 "GLX.chs" #-}
      depth <- ((\hsc_ptr -> peekByteOff hsc_ptr 12)) vi
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      viclass <- ((\hsc_ptr -> peekByteOff hsc_ptr 16)) vi
{-# LINE 80 "GLX.chs" #-}
      red_mask <- ((\hsc_ptr -> peekByteOff hsc_ptr 20)) vi
{-# LINE 81 "GLX.chs" #-}
      green_mask <- ((\hsc_ptr -> peekByteOff hsc_ptr 24)) vi
{-# LINE 82 "GLX.chs" #-}
      blue_mask <- ((\hsc_ptr -> peekByteOff hsc_ptr 28)) vi
{-# LINE 83 "GLX.chs" #-}
      colormap_size <- ((\hsc_ptr -> peekByteOff hsc_ptr 32)) vi
{-# LINE 84 "GLX.chs" #-}
      bits_per_rgb <- ((\hsc_ptr -> peekByteOff hsc_ptr 36)) vi
{-# LINE 85 "GLX.chs" #-}
      
      return (VisualInfo visual visualid screen depth viclass red_mask green_mask blue_mask colormap_size bits_per_rgb)
      
    
    poke vi (VisualInfo visual visualid screen depth viclass red_mask green_mask blue_mask colormap_size bits_per_rgb) = do
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 0)) vi visual
{-# LINE 91 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 4)) vi visualid
{-# LINE 92 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 8)) vi screen
{-# LINE 93 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 12)) vi depth
{-# LINE 94 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 16)) vi viclass
{-# LINE 95 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 20)) vi red_mask
{-# LINE 96 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 24)) vi green_mask
{-# LINE 97 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 28)) vi blue_mask
{-# LINE 98 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 32)) vi colormap_size
{-# LINE 99 "GLX.chs" #-}
                                ((\hsc_ptr -> pokeByteOff hsc_ptr 36)) vi bits_per_rgb
{-# LINE 100 "GLX.chs" #-}


data SetWindowAttributes = SetWindowAttributes
    { swaBackgroundPixmap   :: !Pixmap
    , swaBackgroundPixel    :: !Pixel
    , swaBorderPixmap       :: !Pixmap
    , swaBitGravity         :: !CInt
    , swaWinGravity         :: !CInt
    , swaBackingStore       :: !CInt
    , swaBackingPlanes      :: !CULong
    , swaBackingPixel       :: !CULong
    , swaSaveUnder          :: !Bool
    , swaEventMask          :: !EventMask
    , swaDoNotPropagateMask :: !CULong
    , swaOverrideRedirect   :: !Bool
    , swaColormap           :: !Colormap
    , swaCursor             :: !Cursor
    } deriving (Eq, Ord, Show, Typeable)

instance Storable SetWindowAttributes where
    sizeOf _ = ((60))
{-# LINE 121 "GLX.chs" #-}
    alignment _ = alignment (undefined :: CULong)
    
    peek swa = do
      background_pixmap <- ((\hsc_ptr -> peekByteOff hsc_ptr 0)) swa
{-# LINE 125 "GLX.chs" #-}
      background_pixel <- ((\hsc_ptr -> peekByteOff hsc_ptr 4)) swa
{-# LINE 126 "GLX.chs" #-}
      border_pixmap <- ((\hsc_ptr -> peekByteOff hsc_ptr 8)) swa
{-# LINE 127 "GLX.chs" #-}
      bit_gravity <- ((\hsc_ptr -> peekByteOff hsc_ptr 16)) swa
{-# LINE 128 "GLX.chs" #-}
      win_gravity <- ((\hsc_ptr -> peekByteOff hsc_ptr 20)) swa
{-# LINE 129 "GLX.chs" #-}
      backing_store <- ((\hsc_ptr -> peekByteOff hsc_ptr 24)) swa
{-# LINE 130 "GLX.chs" #-}
      backing_planes <- ((\hsc_ptr -> peekByteOff hsc_ptr 28)) swa
{-# LINE 131 "GLX.chs" #-}
      backing_pixel <- ((\hsc_ptr -> peekByteOff hsc_ptr 32)) swa
{-# LINE 132 "GLX.chs" #-}
      save_under <- ((\hsc_ptr -> peekByteOff hsc_ptr 36)) swa
{-# LINE 133 "GLX.chs" #-}
      event_mask <- ((\hsc_ptr -> peekByteOff hsc_ptr 40)) swa
{-# LINE 134 "GLX.chs" #-}
      do_not_propagate_mask <- ((\hsc_ptr -> peekByteOff hsc_ptr 44)) swa
{-# LINE 135 "GLX.chs" #-}
      override_redirect <- ((\hsc_ptr -> peekByteOff hsc_ptr 48)) swa
{-# LINE 136 "GLX.chs" #-}
      colormap <- ((\hsc_ptr -> peekByteOff hsc_ptr 52)) swa
{-# LINE 137 "GLX.chs" #-}
      cursor <- ((\hsc_ptr -> peekByteOff hsc_ptr 56)) swa
{-# LINE 138 "GLX.chs" #-}
      
      return (SetWindowAttributes
              background_pixmap
              background_pixel
              border_pixmap
              bit_gravity
              win_gravity
              backing_store
              backing_planes
              backing_pixel
              save_under
              event_mask
              do_not_propagate_mask
              override_redirect
              colormap
              cursor)

    poke swa (SetWindowAttributes
              background_pixmap
              background_pixel
              border_pixmap
              bit_gravity
              win_gravity
              backing_store
              backing_planes
              backing_pixel
              save_under
              event_mask
              do_not_propagate_mask
              override_redirect
              colormap
              cursor) = do
      ((\hsc_ptr -> pokeByteOff hsc_ptr 0)) swa background_pixmap
{-# LINE 171 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 4)) swa background_pixel
{-# LINE 172 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 8)) swa border_pixmap
{-# LINE 173 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 16)) swa bit_gravity
{-# LINE 174 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 20)) swa win_gravity
{-# LINE 175 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 24)) swa backing_store
{-# LINE 176 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 28)) swa backing_planes
{-# LINE 177 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 32)) swa backing_pixel
{-# LINE 178 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 36)) swa save_under
{-# LINE 179 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 40)) swa event_mask
{-# LINE 180 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 44)) swa do_not_propagate_mask
{-# LINE 181 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 48)) swa override_redirect
{-# LINE 182 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 52)) swa colormap
{-# LINE 183 "GLX.chs" #-}
      ((\hsc_ptr -> pokeByteOff hsc_ptr 56)) swa cursor
{-# LINE 184 "GLX.chs" #-}

nullSetWindowAttributes :: SetWindowAttributes
nullSetWindowAttributes = (SetWindowAttributes 0 0 0 0 0 0 0 0 False 0 0 False 0 0)
           

foreign import ccall unsafe "GL/glx.h XCreateColormap"
        createColormap :: Display -> Window -> Visual -> ColormapAlloc -> IO Colormap

foreign import ccall unsafe "GL/glx.h XCreateWindow"
        createWindow :: Display -> Window -> Position -> Position ->
                        Dimension -> Dimension -> CInt -> CInt -> WindowClass ->
                        Visual -> AttributeMask -> Ptr SetWindowAttributes -> IO Window

foreign import ccall unsafe "GL/glx.h XSetClassHint"
        xSetClassHint :: Display -> Window -> Ptr ClassHint -> IO ()

setClassHint :: Display -> Window -> ClassHint -> IO ()
setClassHint disp wnd hint = allocaBytes ((8)) $ \p ->
{-# LINE 202 "GLX.chs" #-}
                             withCString (resName hint) $ \res_name ->
                             withCString (resClass hint) $ \res_class -> do
                               ((\hsc_ptr -> pokeByteOff hsc_ptr 0)) p res_name
{-# LINE 205 "GLX.chs" #-}
                               ((\hsc_ptr -> pokeByteOff hsc_ptr 4)) p res_class
{-# LINE 206 "GLX.chs" #-}
                               xSetClassHint disp wnd p


foreign import ccall unsafe "GL/glx.h glXChooseFBConfig"
        glXChooseFBConfig :: Display -> CInt -> Ptr CInt -> Ptr CInt -> IO (Ptr FBConfig)

chooseFBConfig :: Display -> CInt -> [(CInt, CInt)] -> IO [FBConfig]
chooseFBConfig disp sc attr = alloca $ \n -> withArray0 (fromIntegral none) (concatMap (\(a,b) -> [a,b]) attr) $ \attrp -> do
                                configs <- glXChooseFBConfig disp sc attrp n
                                nelements <- peek n
                                configlist <- peekArray (fromIntegral nelements) configs
                                xFree configs
                                return configlist
                                

renderType :: CInt
renderType = (32785)
{-# LINE 223 "GLX.chs" #-}

rgbaBit :: CInt
rgbaBit = (1)
{-# LINE 226 "GLX.chs" #-}

drawableType :: CInt
drawableType = (32784)
{-# LINE 229 "GLX.chs" #-}

windowBit :: CInt
windowBit = (1)
{-# LINE 232 "GLX.chs" #-}

xRenderable :: CInt
xRenderable = (32786)
{-# LINE 235 "GLX.chs" #-}

doublebuffer :: CInt
doublebuffer = (5)
{-# LINE 238 "GLX.chs" #-}

depthSize :: CInt
depthSize = (12)
{-# LINE 241 "GLX.chs" #-}

stencilSize :: CInt
stencilSize = (13)
{-# LINE 244 "GLX.chs" #-}

foreign import ccall unsafe "GL/glx.h glXGetVisualFromFBConfig"
        glXGetVisualFromFBConfig :: Display -> FBConfig -> IO (Ptr VisualInfo)

getVisualFromFBConfig :: Display -> FBConfig -> IO (VisualInfo)
getVisualFromFBConfig disp config = do
  viptr <- glXGetVisualFromFBConfig disp config
  vi <- peek viptr
  xFree viptr
  return vi

foreign import ccall unsafe "GL/glx.h glXCreateContext"
        createContext :: Display -> Ptr VisualInfo -> Context -> Bool -> IO Context

foreign import ccall unsafe "GL/glx.h glXMakeCurrent"
        makeCurrent :: Display -> Drawable -> Context -> IO Bool

foreign import ccall unsafe "GL/glx.h glXDestroyContext"
        destroyContext :: Display -> Context -> IO ()

foreign import ccall unsafe "GL/glx.h glXSwapBuffers"
        swapBuffers :: Display -> Drawable -> IO ()