{-# LANGUAGE RecordWildCards #-} import Affection import qualified SDL import qualified SDL.Raw as Raw import qualified GEGL as G import qualified BABL as B import qualified Data.Map.Strict as M import Foreign.Storable (peek) import Foreign.C.Types (CInt(..)) import Debug.Trace -- main :: IO () -- main = withAllAffection $ -- withDefaultWindow "test" $ do -- changeColor $ RGBA 255 255 255 255 -- clear -- present -- liftIO $ delaySec 2 main :: IO () main = do conf <- return $ AffectionConfig { initComponents = All , windowTitle = "Affection: example00" , windowConfig = SDL.defaultWindow , drawLoop = draw , updateLoop = update , loadState = load } withAffection conf type UserData = M.Map String G.GeglNode load :: SDL.Surface -> IO UserData load _ = do traceM "loading" root <- G.gegl_node_new traceM "new root node" checkerboard <- G.gegl_node_new_child root $ G.checkerboardOperation [ G.Property "color1" $ G.PropertyColor $ G.RGBA 0.4 0.4 0.4 1 , G.Property "color2" $ G.PropertyColor $ G.RGBA 0.6 0.6 0.6 1 ] traceM "checkerboard" myMap <- return $ M.fromList [ ("root" , root) , ("checkerboard", checkerboard) ] traceM "loading complete" return myMap draw :: AffectionState (AffectionData UserData) IO () draw = do traceM "drawing" AffectionData{..} <- get liftIO $ SDL.lockSurface drawSurface pixels <- liftIO $ SDL.surfacePixels drawSurface let SDL.Surface rawSurfacePtr _ = drawSurface rawSurface <- liftIO $ peek rawSurfacePtr pixelFormat <- liftIO $ peek $ Raw.surfaceFormat rawSurface format <- liftIO $ (B.babl_format $ B.PixelFormat B.R'G'B'A B.CFu8) SDL.V2 (CInt rw) (CInt rh) <- SDL.surfaceDimensions drawSurface let (w, h) = (fromIntegral rw, fromIntegral rh) liftIO $ G.gegl_node_blit (userState M.! "checkerboard" :: G.GeglNode) 1 (G.GeglRectangle 0 0 w h) format pixels (fromIntegral (Raw.pixelFormatBytesPerPixel pixelFormat) * w) [G.GeglBlitDefault] liftIO $ SDL.unlockSurface drawSurface liftIO $ SDL.updateWindowSurface drawWindow update :: Double -> AffectionState (AffectionData UserData) IO () update sec = do traceM "updating" -- traceM $ show sec -- liftIO $ delaySec 5 -- ud@AffectionData{..} <- get -- put $ ud -- { quitEvent = True -- }