module Game.LambdaHack.Common.PointArray
( GArray(..), Array, pindex, punindex
, (!), accessI, (//)
, replicateA, replicateMA, generateA, generateMA, unfoldrNA, sizeA
, foldrA, foldrA', foldlA', ifoldrA, ifoldrA', ifoldlA', foldMA', ifoldMA'
, mapA, imapA, imapMA_
, safeSetA, unsafeSetA, unsafeUpdateA, unsafeWriteA, unsafeWriteManyA
, minIndexA, minLastIndexA, minIndexesA, maxIndexA, maxLastIndexA, forceA
, fromListA, toListA
) where
import Prelude ()
import Game.LambdaHack.Common.Prelude
import Control.Monad.ST.Strict
import Data.Binary
import Data.Vector.Binary ()
#if MIN_VERSION_vector(0,11,0)
import qualified Data.Vector.Fusion.Bundle as Bundle
#else
import qualified Data.Vector.Fusion.Stream as Bundle
#endif
import qualified Data.Vector.Generic as G
import qualified Data.Vector.Unboxed as U
import qualified Data.Vector.Unboxed.Mutable as VM
import Game.LambdaHack.Common.Point
data GArray w c = Array
{ axsize :: !X
, aysize :: !Y
, avector :: !(U.Vector w)
}
deriving Eq
instance Show (GArray w c) where
show a = "PointArray.Array with size " ++ show (sizeA a)
type Array c = GArray Word8 c
cnv :: (Enum a, Enum b) => a -> b
{-# INLINE cnv #-}
cnv = toEnum . fromEnum
pindex :: X -> Point -> Int
{-# INLINE pindex #-}
pindex xsize (Point x y) = x + y * xsize
punindex :: X -> Int -> Point
{-# INLINE punindex #-}
punindex xsize n = let (y, x) = n `quotRem` xsize
in Point x y
(!) :: (U.Unbox w, Enum w, Enum c) => GArray w c -> Point -> c
{-# INLINE (!) #-}
(!) Array{..} p = cnv $ avector U.! pindex axsize p
accessI :: U.Unbox w => GArray w c -> Int -> w
{-# INLINE accessI #-}
accessI Array{..} p = avector `U.unsafeIndex` p
(//) :: (U.Unbox w, Enum w, Enum c) => GArray w c -> [(Point, c)] -> GArray w c
{-# INLINE (//) #-}
(//) Array{..} l = let v = avector U.// map (pindex axsize *** cnv) l
in Array{avector = v, ..}
unsafeUpdateA :: (U.Unbox w, Enum w, Enum c) => GArray w c -> [(Point, c)] -> ()
{-# INLINE unsafeUpdateA #-}
unsafeUpdateA Array{..} l = runST $ do
vThawed <- U.unsafeThaw avector
mapM_ (\(p, c) -> VM.write vThawed (pindex axsize p) (cnv c)) l
void $ U.unsafeFreeze vThawed
unsafeWriteA :: (U.Unbox w, Enum w, Enum c) => GArray w c -> Point -> c -> ()
{-# INLINE unsafeWriteA #-}
unsafeWriteA Array{..} p c = runST $ do
vThawed <- U.unsafeThaw avector
VM.write vThawed (pindex axsize p) (cnv c)
void $ U.unsafeFreeze vThawed
unsafeWriteManyA :: (U.Unbox w, Enum w, Enum c) => GArray w c -> [Point] -> c -> ()
{-# INLINE unsafeWriteManyA #-}
unsafeWriteManyA Array{..} l c = runST $ do
vThawed <- U.unsafeThaw avector
let d = cnv c
mapM_ (\p -> VM.write vThawed (pindex axsize p) d) l
void $ U.unsafeFreeze vThawed
replicateA :: (U.Unbox w, Enum w, Enum c) => X -> Y -> c -> GArray w c
{-# INLINE replicateA #-}
replicateA axsize aysize c =
Array{avector = U.replicate (axsize * aysize) $ cnv c, ..}
replicateMA :: (U.Unbox w, Enum w, Enum c, Monad m) => X -> Y -> m c -> m (GArray w c)
{-# INLINE replicateMA #-}
replicateMA axsize aysize m = do
v <- U.replicateM (axsize * aysize) $ liftM cnv m
return $! Array{avector = v, ..}
generateA :: (U.Unbox w, Enum w, Enum c) => X -> Y -> (Point -> c) -> GArray w c
{-# INLINE generateA #-}
generateA axsize aysize f =
let g n = cnv $ f $ punindex axsize n
in Array{avector = U.generate (axsize * aysize) g, ..}
generateMA :: (U.Unbox w, Enum w, Enum c, Monad m) => X -> Y -> (Point -> m c) -> m (GArray w c)
{-# INLINE generateMA #-}
generateMA axsize aysize fm = do
let gm n = liftM cnv $ fm $ punindex axsize n
v <- U.generateM (axsize * aysize) gm
return $! Array{avector = v, ..}
unfoldrNA :: (U.Unbox w, Enum w, Enum c) => X -> Y -> (b -> (c, b)) -> b -> GArray w c
{-# INLINE unfoldrNA #-}
unfoldrNA axsize aysize fm b =
let gm = Just . first cnv . fm
v = U.unfoldrN (axsize * aysize) gm b
in Array {avector = v, ..}
sizeA :: GArray w c -> (X, Y)
{-# INLINE sizeA #-}
sizeA Array{..} = (axsize, aysize)
foldrA :: (U.Unbox w, Enum w, Enum c) => (c -> a -> a) -> a -> GArray w c -> a
{-# INLINE foldrA #-}
foldrA f z0 Array{..} =
U.foldr (\c a-> f (cnv c) a) z0 avector
foldrA' :: (U.Unbox w, Enum w, Enum c) => (c -> a -> a) -> a -> GArray w c -> a
{-# INLINE foldrA' #-}
foldrA' f z0 Array{..} =
U.foldr' (\c a-> f (cnv c) a) z0 avector
foldlA' :: (U.Unbox w, Enum w, Enum c) => (a -> c -> a) -> a -> GArray w c -> a
{-# INLINE foldlA' #-}
foldlA' f z0 Array{..} =
U.foldl' (\a c -> f a (cnv c)) z0 avector
ifoldlA' :: (U.Unbox w, Enum w, Enum c)
=> (a -> Point -> c -> a) -> a -> GArray w c -> a
{-# INLINE ifoldlA' #-}
ifoldlA' f z0 Array{..} =
U.ifoldl' (\a n c -> f a (punindex axsize n) (cnv c)) z0 avector
ifoldrA :: (U.Unbox w, Enum w, Enum c)
=> (Point -> c -> a -> a) -> a -> GArray w c -> a
{-# INLINE ifoldrA #-}
ifoldrA f z0 Array{..} =
U.ifoldr (\n c a -> f (punindex axsize n) (cnv c) a) z0 avector
ifoldrA' :: (U.Unbox w, Enum w, Enum c)
=> (Point -> c -> a -> a) -> a -> GArray w c -> a
{-# INLINE ifoldrA' #-}
ifoldrA' f z0 Array{..} =
U.ifoldr' (\n c a -> f (punindex axsize n) (cnv c) a) z0 avector
foldMA' :: (Monad m, U.Unbox w, Enum w, Enum c)
=> (a -> c -> m a) -> a -> GArray w c -> m a
{-# INLINE foldMA' #-}
foldMA' f z0 Array{..} =
U.foldM' (\a c -> f a (cnv c)) z0 avector
ifoldMA' :: (Monad m, U.Unbox w, Enum w, Enum c)
=> (a -> Point -> c -> m a) -> a -> GArray w c -> m a
{-# INLINE ifoldMA' #-}
ifoldMA' f z0 Array{..} =
U.ifoldM' (\a n c -> f a (punindex axsize n) (cnv c)) z0 avector
mapA :: (U.Unbox w1, Enum w1, U.Unbox w2, Enum w2, Enum c, Enum d)
=> (c -> d) -> GArray w1 c -> GArray w2 d
{-# INLINE mapA #-}
mapA f Array{..} = Array{avector = U.map (cnv . f . cnv) avector, ..}
imapA :: (U.Unbox w1, Enum w1, U.Unbox w2, Enum w2, Enum c, Enum d)
=> (Point -> c -> d) -> GArray w1 c -> GArray w2 d
{-# INLINE imapA #-}
imapA f Array{..} =
let v = U.imap (\n c -> cnv $ f (punindex axsize n) (cnv c)) avector
in Array{avector = v, ..}
unsafeSetA :: (U.Unbox w, Enum w, Enum c) => c -> GArray w c -> GArray w c
{-# INLINE unsafeSetA #-}
unsafeSetA c Array{..} = runST $ do
vThawed <- U.unsafeThaw avector
VM.set vThawed (cnv c)
vFrozen <- U.unsafeFreeze vThawed
return $! Array{avector = vFrozen, ..}
safeSetA :: (U.Unbox w, Enum w, Enum c) => c -> GArray w c -> GArray w c
{-# INLINE safeSetA #-}
safeSetA c Array{..} =
Array{avector = U.modify (\v -> VM.set v (cnv c)) avector, ..}
imapMA_ :: (U.Unbox w, Enum w, Enum c, Monad m)
=> (Point -> c -> m ()) -> GArray w c -> m ()
{-# INLINE imapMA_ #-}
imapMA_ f Array{..} =
U.imapM_ (\n c -> f (punindex axsize n) (cnv c)) avector
minIndexA :: (U.Unbox w, Ord w) => GArray w c -> Point
{-# INLINE minIndexA #-}
minIndexA Array{..} = punindex axsize $ U.minIndex avector
minLastIndexA :: (U.Unbox w, Ord w) => GArray w c -> Point
{-# INLINE minLastIndexA #-}
minLastIndexA Array{..} =
punindex axsize
$ fst . Bundle.foldl1' imin . Bundle.indexed . G.stream
$ avector
where
imin (i, x) (j, y) = i `seq` j `seq` if x >= y then (j, y) else (i, x)
minIndexesA :: (U.Unbox w, Enum w, Ord w) => GArray w c -> [Point]
{-# INLINE minIndexesA #-}
minIndexesA Array{..} =
map (punindex axsize)
$ Bundle.foldr imin [] . Bundle.indexed . G.stream
$ avector
where
imin (i, x) acc = i `seq` if x == minE then i : acc else acc
minE = cnv $ U.minimum avector
maxIndexA :: (U.Unbox w, Ord w) => GArray w c -> Point
{-# INLINE maxIndexA #-}
maxIndexA Array{..} = punindex axsize $ U.maxIndex avector
maxLastIndexA :: (U.Unbox w, Ord w) => GArray w c -> Point
{-# INLINE maxLastIndexA #-}
maxLastIndexA Array{..} =
punindex axsize
$ fst . Bundle.foldl1' imax . Bundle.indexed . G.stream
$ avector
where
imax (i, x) (j, y) = i `seq` j `seq` if x <= y then (j, y) else (i, x)
forceA :: U.Unbox w => GArray w c -> GArray w c
{-# INLINE forceA #-}
forceA Array{..} = Array{avector = U.force avector, ..}
fromListA :: (U.Unbox w, Enum w, Enum c) => X -> Y -> [c] -> GArray w c
{-# INLINE fromListA #-}
fromListA axsize aysize l =
Array{avector = U.fromListN (axsize * aysize) $ map cnv l, ..}
toListA :: (U.Unbox w, Enum w, Enum c) => GArray w c -> [c]
{-# INLINE toListA #-}
toListA Array{..} = map cnv $ U.toList avector
instance (U.Unbox w, Binary w) => Binary (GArray w c) where
put Array{..} = do
put axsize
put aysize
put avector
get = do
axsize <- get
aysize <- get
avector <- get
return $! Array{..}