110 lines
2.9 KiB
Haskell
110 lines
2.9 KiB
Haskell
{-# 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 Control.Monad (when)
|
|
|
|
import Foreign.Storable (peek)
|
|
import Foreign.C.Types
|
|
|
|
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
|
|
, preLoop = return ()
|
|
, eventLoop = const $ return ()
|
|
, updateLoop = update
|
|
, drawLoop = draw
|
|
, loadState = load
|
|
, cleanUp = clean
|
|
, canvasSize = Nothing
|
|
}
|
|
withAffection conf
|
|
|
|
data UserData = UserData
|
|
{ nodeGraph :: M.Map String G.GeglNode
|
|
, foreground :: G.GeglBuffer
|
|
-- , lastTick :: Double
|
|
}
|
|
|
|
load :: IO UserData
|
|
load = do
|
|
traceM "loading"
|
|
root <- G.gegl_node_new
|
|
traceM "new root node"
|
|
checkerboard <- G.gegl_node_new_child root $ G.checkerboardOperation $
|
|
props $ do
|
|
prop "color1" $ G.RGBA 0.4 0.4 0.4 1
|
|
prop "color2" $ G.RGBA 0.6 0.6 0.6 1
|
|
traceM "checkerboard"
|
|
over <- G.gegl_node_new_child root G.defaultOverOperation
|
|
traceM "over"
|
|
buffer <- G.gegl_buffer_new (Just $ G.GeglRectangle 0 0 800 600) =<<
|
|
B.babl_format (B.PixelFormat B.RGBA B.CFfloat)
|
|
sink <- G.gegl_node_new_child root $ G.Operation "gegl:copy-buffer" $
|
|
props $
|
|
prop "buffer" buffer
|
|
traceM "buffer-source"
|
|
nop <- G.gegl_node_new_child root $ G.Operation "gegl:nop" []
|
|
traceM "nop"
|
|
crop <- G.gegl_node_new_child root $ G.Operation "gegl:crop" $
|
|
props $ do
|
|
prop "width" (800::Double)
|
|
prop "height" (600.0::Double)
|
|
G.gegl_node_link_many [checkerboard, over, crop, sink]
|
|
G.gegl_node_connect_to nop "output" over "aux"
|
|
traceM "connections made"
|
|
myMap <- return $ M.fromList
|
|
[ ("root" , root)
|
|
, ("over" , over)
|
|
, ("background" , checkerboard)
|
|
, ("sink" , sink)
|
|
, ("nop" , nop)
|
|
]
|
|
let roi = G.GeglRectangle 0 0 20 20
|
|
traceM "loading complete"
|
|
return $ UserData
|
|
{ nodeGraph = myMap
|
|
, foreground = buffer
|
|
-- , lastTick = 0
|
|
}
|
|
|
|
draw :: Affection UserData ()
|
|
draw = do
|
|
traceM "drawing"
|
|
UserData{..} <- getAffection
|
|
drawRect (nodeGraph M.! "nop") (G.RGB 1 0 0) Fill (G.GeglRectangle 10 10 500 500) foreground
|
|
process $ nodeGraph M.! "sink"
|
|
render Nothing Nothing
|
|
|
|
update :: Double -> Affection UserData ()
|
|
update dt = do
|
|
traceM "updating"
|
|
ud <- getAffection
|
|
-- let last = lastTick ud
|
|
-- tick <- getTick
|
|
-- putAffection $ ud { lastTick = tick }
|
|
traceM $ (show $ 1 / dt) ++ " FPS"
|
|
elapsed <- getElapsedTime
|
|
when (elapsed > 20) $
|
|
quit
|
|
|
|
clean :: UserData -> IO ()
|
|
clean _ = return ()
|