{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE UndecidableInstances #-}
module Data.Massiv.Array.IO.Image.JuicyPixels.TGA
( TGA(..)
, decodeTGA
, decodeWithMetadataTGA
, decodeAutoTGA
, decodeAutoWithMetadataTGA
, encodeTGA
, encodeAutoTGA
) where
import qualified Codec.Picture as JP
import qualified Codec.Picture.Metadata as JP
import qualified Codec.Picture.Tga as JP
import Control.Monad (msum)
import Data.Bifunctor (first)
import qualified Data.ByteString as B
import qualified Data.ByteString.Lazy as BL (ByteString)
import Data.Massiv.Array as A
import Data.Massiv.Array.IO.Base
import Data.Massiv.Array.IO.Image.JuicyPixels.Base
import Data.Maybe (fromMaybe)
import Data.Typeable
import qualified Graphics.Pixel as CM
import Graphics.Pixel.ColorSpace
import Prelude as P
data TGA = TGA deriving Show
instance FileFormat TGA where
type Metadata TGA = JP.Metadatas
ext _ = ".tga"
instance Writable TGA (Image S CM.Y Word8) where
encodeM TGA _ img = pure $ JP.encodeTga (toJPImageY8 img)
instance Writable TGA (Image S CM.RGB Word8) where
encodeM TGA _ img = pure $ JP.encodeTga (toJPImageRGB8 img)
instance Writable TGA (Image S (Alpha CM.RGB) Word8) where
encodeM TGA _ img = pure $ JP.encodeTga (toJPImageRGBA8 img)
instance Writable TGA (Image S Y' Word8) where
encodeM f opts = encodeM f opts . demoteLumaImage
instance Writable TGA (Image S (Y D65) Word8) where
encodeM f opts = encodeM f opts . toImageBaseModel
instance Writable TGA (Image S (SRGB 'NonLinear) Word8) where
encodeM f opts = encodeM f opts . toImageBaseModel
instance Writable TGA (Image S (Alpha (SRGB 'NonLinear)) Word8) where
encodeM f opts = encodeM f opts . toImageBaseModel
instance (ColorSpace cs i e, ColorSpace (BaseSpace cs) i e, Source r Ix2 (Pixel cs e)) =>
Writable (Auto TGA) (Image r cs e) where
encodeM f _ = pure . encodeAutoTGA f
instance Readable TGA (Image S CM.Y Word8) where
decodeWithMetadataM = decodeWithMetadataTGA
instance Readable TGA (Image S CM.RGB Word8) where
decodeWithMetadataM = decodeWithMetadataTGA
instance Readable TGA (Image S (Alpha CM.RGB) Word8) where
decodeWithMetadataM = decodeWithMetadataTGA
instance Readable TGA (Image S Y' Word8) where
decodeWithMetadataM f = fmap (first promoteLumaImage) . decodeWithMetadataM f
instance Readable TGA (Image S (Y D65) Word8) where
decodeWithMetadataM f = fmap (first fromImageBaseModel) . decodeWithMetadataM f
instance Readable TGA (Image S (SRGB 'NonLinear) Word8) where
decodeWithMetadataM f = fmap (first fromImageBaseModel) . decodeWithMetadataM f
instance Readable TGA (Image S (Alpha (SRGB 'NonLinear)) Word8) where
decodeWithMetadataM f = fmap (first fromImageBaseModel) . decodeWithMetadataM f
decodeTGA :: (ColorModel cs e, MonadThrow m) => TGA -> B.ByteString -> m (Image S cs e)
decodeTGA f bs = convertWith f (JP.decodeTga bs)
decodeWithMetadataTGA ::
(ColorModel cs e, MonadThrow m) => TGA -> B.ByteString -> m (Image S cs e, JP.Metadatas)
decodeWithMetadataTGA f bs = convertWithMetadata f (JP.decodeTgaWithMetadata bs)
decodeAutoTGA ::
(Mutable r Ix2 (Pixel cs e), ColorSpace cs i e, MonadThrow m)
=> Auto TGA
-> B.ByteString
-> m (Image r cs e)
decodeAutoTGA f bs = convertAutoWith f (JP.decodeTga bs)
decodeAutoWithMetadataTGA ::
(Mutable r Ix2 (Pixel cs e), ColorSpace cs i e, MonadThrow m)
=> Auto TGA
-> B.ByteString
-> m (Image r cs e, JP.Metadatas)
decodeAutoWithMetadataTGA f bs = convertAutoWithMetadata f (JP.decodeTgaWithMetadata bs)
instance (Mutable r Ix2 (Pixel cs e), ColorSpace cs i e) =>
Readable (Auto TGA) (Image r cs e) where
decodeWithMetadataM = decodeAutoWithMetadataTGA
encodeTGA ::
forall cs e m. (ColorModel cs e, MonadThrow m)
=> TGA
-> Image S cs e
-> m BL.ByteString
encodeTGA f img =
fromMaybeEncode f (Proxy :: Proxy (Image S cs e)) $ do
Refl <- eqT :: Maybe (e :~: Word8)
msum
[ JP.encodeTga <$> maybeJPImageY8 img
, JP.encodeTga <$> maybeJPImageRGB8 img
, do Refl <- eqT :: Maybe (cs :~: Alpha (Opaque cs))
JP.encodeTga <$> maybeJPImageRGBA8 img
]
encodeAutoTGA ::
forall r cs i e.
( ColorSpace (BaseSpace cs) i e
, ColorSpace cs i e
, Source r Ix2 (Pixel cs e)
)
=> Auto TGA
-> Image r cs e
-> BL.ByteString
encodeAutoTGA _ img =
fromMaybe (toTga toJPImageRGB8 toSRGB8 img) $
msum
[ do Refl <- eqT :: Maybe (BaseModel cs :~: CM.Y)
msum
[ do Refl <- eqT :: Maybe (e :~: Bit)
pure $ toTga toJPImageY8 (toPixel8 . toPixelBaseModel) img
, do Refl <- eqT :: Maybe (e :~: Word8)
pure $ toTga toJPImageY8 toPixelBaseModel img
, pure $ toTga toJPImageY8 (toPixel8 . toPixelBaseModel) img
]
, do Refl <- eqT :: Maybe (cs :~: Alpha (Opaque cs))
pure $ toTga toJPImageRGBA8 toSRGBA8 img
]
where
toTga ::
(JP.TgaSaveable px, Source r ix a)
=> (Array D ix b -> JP.Image px)
-> (a -> b)
-> Array r ix a
-> BL.ByteString
toTga toJP adjustPixel = JP.encodeTga . toJP . A.map adjustPixel