basic functionality on Wayland and X11

lib/Main.hs

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+{-# LANGUAGE CApiFFI #-}
+
+module Main (main) where
+
+import Data.Bits (shiftL, (.|.))
+import Foreign
+import Foreign.C.String
+import Foreign.C.Types
+
+import Lib
+
+--------------------------------------------------------------------------------
+-- main
+--------------------------------------------------------------------------------
+
+main :: IO ()
+main = do
+  window <- withCString "a window" (\name ->
+              rgfwCreateWindow
+                name
+                0
+                0
+                800
+                600
+                $ mkWindowFlags 
+                  [ WindowNoResize
+                  , WindowOpenGL
+                  , WindowFullscreen
+                  ]
+              )
+  let loop ctr = do
+        shouldClose <- rgfwWindowShouldClose window
+        if 0 /= shouldClose
+        then return shouldClose
+        else loop $ ctr + 1
+  exitCode <- loop 0
+  putStrLn $ show exitCode
+  return ()