Use XCB backend

2 files changed, 51 insertions, 92 deletions

diff --git a/lib/Phi/Bindings/Cairo.hsc b/lib/Phi/Bindings/Cairo.hsc
new file mode 100644
index 0000000..246bc13
--- /dev/null
+++ b/lib/Phi/Bindings/Cairo.hsc
@@ -0,0 +1,51 @@
+{-# LANGUAGE ForeignFunctionInterface #-}
+
+module Phi.Bindings.Cairo ( createXCBSurface
+                          ) where
+
+import Control.Monad
+
+import Data.Int
+import Data.Word
+
+import Foreign.C.Types
+import Foreign.ForeignPtr
+import Foreign.Marshal.Alloc
+import Foreign.Marshal.Utils
+import Foreign.Ptr
+import Foreign.Storable
+
+import Graphics.Rendering.Cairo.Types
+import Graphics.XHB (toValue)
+import Graphics.XHB.Connection.XCB
+import Graphics.XHB.Gen.Xproto (DRAWABLE, VISUALTYPE(..))
+
+
+#include <cairo-xcb.h>
+
+
+foreign import ccall "cairo-xlib.h cairo_xcb_surface_create"
+  cairo_xcb_surface_create :: Ptr XCBConnection -> DRAWABLE -> Ptr VISUALTYPE -> CInt -> CInt -> IO (Ptr Surface)
+
+instance Storable VISUALTYPE where
+  sizeOf _ = (#size xcb_visualtype_t)
+  alignment _ = alignment (undefined :: CInt)
+  
+  peek _ = error "VISUALTYPE: peek not implemented"
+  
+  poke vt (MkVISUALTYPE visual_id _class bits_per_rgb_value colormap_entries red_mask green_mask blue_mask) = do
+    (#poke xcb_visualtype_t, visual_id) vt visual_id
+    (#poke xcb_visualtype_t, _class) vt (toValue _class :: Word8)
+    (#poke xcb_visualtype_t, bits_per_rgb_value) vt bits_per_rgb_value
+    (#poke xcb_visualtype_t, colormap_entries) vt colormap_entries
+    (#poke xcb_visualtype_t, red_mask) vt red_mask
+    (#poke xcb_visualtype_t, green_mask) vt green_mask
+    (#poke xcb_visualtype_t, blue_mask) vt blue_mask
+
+createXCBSurface :: Connection -> DRAWABLE -> VISUALTYPE -> CInt -> CInt -> IO Surface
+createXCBSurface conn drawable visual width height =
+  with visual $ \visualptr -> withConnection conn $ \connptr -> do
+    surfacePtr <- cairo_xcb_surface_create connptr drawable visualptr width height
+    surface <- mkSurface surfacePtr
+    manageSurface surface
+    return surface
diff --git a/lib/Phi/Bindings/XCB.hsc b/lib/Phi/Bindings/XCB.hsc
deleted file mode 100644
index 1beb5f2..0000000
--- a/lib/Phi/Bindings/XCB.hsc
+++ /dev/null
@@ -1,92 +0,0 @@
-{-# LANGUAGE ForeignFunctionInterface #-}
-
-module Phi.Bindings.XCB ( Connection
-                        , connect
-                        , createXCBSurface
-                        , flush
-                        , clearArea
-                        ) where
-
-import Control.Monad
-
-import Data.Int
-import Data.Word
-
-import Foreign.C.String
-import Foreign.C.Types
-import Foreign.ForeignPtr
-import Foreign.Marshal.Alloc
-import Foreign.Marshal.Utils
-import Foreign.Ptr
-import Foreign.Storable
-
-import Graphics.Rendering.Cairo.Types
-import Graphics.XHB (toValue)
-import Graphics.XHB.Gen.Xproto (DRAWABLE, WINDOW, VISUALTYPE(..))
-
-
-#include <xcb/xcb.h>
-#include <xcb/xproto.h>
-#include <cairo-xcb.h>
-
-
-data Connection = Connection (ForeignPtr Connection)
-
-foreign import ccall "xcb/xcb.h xcb_connect" xcb_connect :: CString -> Ptr CInt -> IO (Ptr Connection)
-foreign import ccall "xcb/xcb.h &xcb_disconnect" p_xcb_disconnect :: FunPtr (Ptr Connection -> IO ())
-
-connect :: IO Connection
-connect = do
-  conn <- xcb_connect nullPtr nullPtr
-  newForeignPtr p_xcb_disconnect conn >>= return . Connection
-
-foreign import ccall "cairo-xlib.h cairo_xcb_surface_create"
-  cairo_xcb_surface_create :: Ptr Connection -> DRAWABLE -> Ptr VISUALTYPE -> CInt -> CInt -> IO (Ptr Surface)
-
-instance Storable VISUALTYPE where
-  sizeOf _ = (#size xcb_visualtype_t)
-  alignment _ = alignment (undefined :: CInt)
-  
-  peek _ = error "VISUALTYPE: peek not implemented"
-  
-  poke vt (MkVISUALTYPE visual_id _class bits_per_rgb_value colormap_entries red_mask green_mask blue_mask) = do
-    (#poke xcb_visualtype_t, visual_id) vt visual_id
-    (#poke xcb_visualtype_t, _class) vt (toValue _class :: Word8)
-    (#poke xcb_visualtype_t, bits_per_rgb_value) vt bits_per_rgb_value
-    (#poke xcb_visualtype_t, colormap_entries) vt colormap_entries
-    (#poke xcb_visualtype_t, red_mask) vt red_mask
-    (#poke xcb_visualtype_t, green_mask) vt green_mask
-    (#poke xcb_visualtype_t, blue_mask) vt blue_mask
-
-createXCBSurface :: Connection -> DRAWABLE -> VISUALTYPE -> CInt -> CInt -> IO Surface
-createXCBSurface (Connection conn) drawable visual width height =
-  with visual $ \visualptr -> withForeignPtr conn $ \connptr -> do
-    surfacePtr <- cairo_xcb_surface_create connptr drawable visualptr width height
-    surface <- mkSurface surfacePtr
-    manageSurface surface
-    return surface
-
-foreign import ccall "xcb/xcb.h xcb_flush"
-  xcb_flush :: Ptr Connection -> IO ()
-
-flush :: Connection -> IO ()
-flush (Connection conn) = withForeignPtr conn xcb_flush
-
-type VOID_COOKIE = CUInt
-
-foreign import ccall unsafe "xcb/xcb.h xcb_request_check" 
-  xcb_request_check :: Ptr Connection -> VOID_COOKIE -> IO (Ptr ())
-
-requestCheck :: Ptr Connection -> VOID_COOKIE -> IO ()
-requestCheck conn cookie = do
-  ret <- xcb_request_check conn cookie
-  when (ret /= nullPtr) $
-    free ret
-
-foreign import ccall "xcb/xproto.h xcb_clear_area"
-  xcb_clear_area :: Ptr Connection -> Word8 -> WINDOW -> Int16 -> Int16 -> Word16 -> Word16 -> IO VOID_COOKIE
-
-clearArea :: Connection -> Bool -> WINDOW -> Int16 -> Int16 -> Word16 -> Word16 -> IO ()
-clearArea (Connection conn) exposures window x y width height = withForeignPtr conn $ \connptr -> do
-  cookie <- xcb_clear_area connptr (if exposures then 1 else 0) window x y width height
-  requestCheck connptr cookie