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Diffstat (limited to 'Bindings/GLX.chs')
| -rw-r--r-- | Bindings/GLX.chs | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/Bindings/GLX.chs b/Bindings/GLX.chs new file mode 100644 index 0000000..5f544ca --- /dev/null +++ b/Bindings/GLX.chs @@ -0,0 +1,242 @@ +{-# LANGUAGE ForeignFunctionInterface, DeriveDataTypeable, GeneralizedNewtypeDeriving #-} + +module Bindings.GLX ( createColormap + , createWindow + , chooseFBConfig + , getVisualFromFBConfig + , XVisualInfo(..) + , XSetWindowAttributes(..) + , nullSetWindowAttributes + , glXGetVisualFromFBConfig + , glxRenderType + , glxRgbaBit + , glxDrawableType + , glxWindowBit + , glxXRenderable + , glxDoublebuffer + , glxDepthSize + , glxStencilSize + , glxTrue + , glXCreateContext + , glXMakeCurrent + , GLXContext(..) + ) where + +import Data.Generics +import Data.Int +import Data.Word + +import Foreign.C.Types +import Foreign.Ptr +import Foreign.Marshal.Alloc (alloca) +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) +import Graphics.X11.Xlib.Types (Dimension, Display, Pixel, Position) + + +#include <GL/glx.h> + + +newtype GLXFBConfig = GLXFBConfig (Ptr GLXFBConfig) + deriving (Eq, Ord, Show, Typeable, Data, Storable) + +newtype GLXContext = GLXContext (Ptr GLXContext) + deriving (Eq, Ord, Show, Typeable, Data, Storable) + +newtype Visual = Visual (Ptr Visual) + deriving (Eq, Ord, Show, Typeable, Data, Storable) + +data XVisualInfo = XVisualInfo + { vi_visual :: !Visual + , vi_visualid :: !VisualID + , vi_screen :: !CInt + , vi_depth :: !CInt + , vi_class :: !CInt + , vi_red_mask :: !CULong + , vi_green_mask :: !CULong + , vi_blue_mask :: !CULong + , vi_colormap_size :: !CInt + , vi_bits_per_rgb :: !CInt + } deriving (Eq, Ord, Show, Typeable) + +instance Storable XVisualInfo where + sizeOf _ = (#size XVisualInfo) + alignment _ = alignment (undefined :: CULong) + + peek vi = do + visual <- (#peek XVisualInfo, visual) vi + visualid <- (#peek XVisualInfo, visualid) vi + screen <- (#peek XVisualInfo, screen) vi + depth <- (#peek XVisualInfo, depth) vi + viclass <- (#peek XVisualInfo, class) vi + red_mask <- (#peek XVisualInfo, red_mask) vi + green_mask <- (#peek XVisualInfo, green_mask) vi + blue_mask <- (#peek XVisualInfo, blue_mask) vi + colormap_size <- (#peek XVisualInfo, colormap_size) vi + bits_per_rgb <- (#peek XVisualInfo, bits_per_rgb) vi + + return (XVisualInfo visual visualid screen depth viclass red_mask green_mask blue_mask colormap_size bits_per_rgb) + + + poke vi (XVisualInfo visual visualid screen depth viclass red_mask green_mask blue_mask colormap_size bits_per_rgb) = do + (#poke XVisualInfo, visual) vi visual + (#poke XVisualInfo, visualid) vi visualid + (#poke XVisualInfo, screen) vi screen + (#poke XVisualInfo, depth) vi depth + (#poke XVisualInfo, class) vi viclass + (#poke XVisualInfo, red_mask) vi red_mask + (#poke XVisualInfo, green_mask) vi green_mask + (#poke XVisualInfo, blue_mask) vi blue_mask + (#poke XVisualInfo, colormap_size) vi colormap_size + (#poke XVisualInfo, bits_per_rgb) vi bits_per_rgb + + +data XSetWindowAttributes = XSetWindowAttributes + { swa_background_pixmap :: !Pixmap + , swa_packground_pixel :: !Pixel + , swa_border_pixmap :: !Pixmap + , swa_bit_gravity :: !CInt + , swa_win_gravity :: !CInt + , swa_backing_store :: !CInt + , swa_backing_planes :: !CULong + , swa_backing_pixel :: !CULong + , swa_save_under :: !Bool + , swa_event_mask :: !EventMask + , swa_do_not_propagate_mask :: !CULong + , swa_override_redirect :: !Bool + , swa_colormap :: !Colormap + , swa_cursor :: !Cursor + } deriving (Eq, Ord, Show, Typeable) + +instance Storable XSetWindowAttributes where + sizeOf _ = (#size XSetWindowAttributes) + alignment _ = alignment (undefined :: CULong) + + peek swa = do + background_pixmap <- (#peek XSetWindowAttributes, background_pixmap) swa + background_pixel <- (#peek XSetWindowAttributes, background_pixel) swa + border_pixmap <- (#peek XSetWindowAttributes, border_pixmap) swa + bit_gravity <- (#peek XSetWindowAttributes, bit_gravity) swa + win_gravity <- (#peek XSetWindowAttributes, win_gravity) swa + backing_store <- (#peek XSetWindowAttributes, backing_store) swa + backing_planes <- (#peek XSetWindowAttributes, backing_planes) swa + backing_pixel <- (#peek XSetWindowAttributes, backing_pixel) swa + save_under <- (#peek XSetWindowAttributes, save_under) swa + event_mask <- (#peek XSetWindowAttributes, event_mask) swa + do_not_propagate_mask <- (#peek XSetWindowAttributes, do_not_propagate_mask) swa + override_redirect <- (#peek XSetWindowAttributes, override_redirect) swa + colormap <- (#peek XSetWindowAttributes, colormap) swa + cursor <- (#peek XSetWindowAttributes, cursor) swa + + return (XSetWindowAttributes + 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 (XSetWindowAttributes + 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 + (#poke XSetWindowAttributes, background_pixmap) swa background_pixmap + (#poke XSetWindowAttributes, background_pixel) swa background_pixel + (#poke XSetWindowAttributes, border_pixmap) swa border_pixmap + (#poke XSetWindowAttributes, bit_gravity) swa bit_gravity + (#poke XSetWindowAttributes, win_gravity) swa win_gravity + (#poke XSetWindowAttributes, backing_store) swa backing_store + (#poke XSetWindowAttributes, backing_planes) swa backing_planes + (#poke XSetWindowAttributes, backing_pixel) swa backing_pixel + (#poke XSetWindowAttributes, save_under) swa save_under + (#poke XSetWindowAttributes, event_mask) swa event_mask + (#poke XSetWindowAttributes, do_not_propagate_mask) swa do_not_propagate_mask + (#poke XSetWindowAttributes, override_redirect) swa override_redirect + (#poke XSetWindowAttributes, colormap) swa colormap + (#poke XSetWindowAttributes, cursor) swa cursor + +nullSetWindowAttributes :: XSetWindowAttributes +nullSetWindowAttributes = (XSetWindowAttributes 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 XSetWindowAttributes -> IO Window + + + +foreign import ccall unsafe "GL/glx.h glXChooseFBConfig" + glXChooseFBConfig :: Display -> CInt -> Ptr CInt -> Ptr CInt -> IO (Ptr GLXFBConfig) + +chooseFBConfig :: Display -> CInt -> [(CInt, CInt)] -> IO [GLXFBConfig] +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 + peekArray (fromIntegral nelements) configs + +glxRenderType :: CInt +glxRenderType = (#const GLX_RENDER_TYPE) + +glxRgbaBit :: CInt +glxRgbaBit = (#const GLX_RGBA_BIT) + +glxDrawableType :: CInt +glxDrawableType = (#const GLX_DRAWABLE_TYPE) + +glxWindowBit :: CInt +glxWindowBit = (#const GLX_WINDOW_BIT) + +glxXRenderable :: CInt +glxXRenderable = (#const GLX_X_RENDERABLE) + +glxDoublebuffer :: CInt +glxDoublebuffer = (#const GLX_DOUBLEBUFFER) + +glxDepthSize :: CInt +glxDepthSize = (#const GLX_DEPTH_SIZE) + +glxStencilSize :: CInt +glxStencilSize = (#const GLX_STENCIL_SIZE) + +glxTrue :: CInt +glxTrue = (#const True) + +foreign import ccall unsafe "GL/glx.h glXGetVisualFromFBConfig" + glXGetVisualFromFBConfig :: Display -> GLXFBConfig -> IO (Ptr XVisualInfo) + +getVisualFromFBConfig :: Display -> GLXFBConfig -> IO (XVisualInfo) +getVisualFromFBConfig disp config = do + vi <- glXGetVisualFromFBConfig disp config + peek vi + +foreign import ccall unsafe "GL/glx.h glXCreateContext" + glXCreateContext :: Display -> Ptr XVisualInfo -> GLXContext -> Bool -> IO GLXContext + +foreign import ccall unsafe "GL/glx.h glXMakeCurrent" + glXMakeCurrent :: Display -> XID -> GLXContext -> IO Bool |