{-# OPTIONS_HADDOCK ignore-exports#-}
{-# LANGUAGE DataKinds                  #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE PatternSynonyms            #-}
{-# LANGUAGE Strict                     #-}
module Graphics.Vulkan.Types.Enum.ChromaLocation
       (VkChromaLocation(VkChromaLocation,
                         VK_CHROMA_LOCATION_COSITED_EVEN, VK_CHROMA_LOCATION_MIDPOINT),
        VkChromaLocationKHR(..))
       where
import Data.Bits                       (Bits, FiniteBits)
import Data.Coerce                     (coerce)
import Foreign.Storable                (Storable)
import GHC.Read                        (choose, expectP)
import Graphics.Vulkan.Marshal         (Int32)
import Graphics.Vulkan.Types.BaseTypes (VkFlags)
import Text.ParserCombinators.ReadPrec (prec, step, (+++))
import Text.Read                       (Read (..), parens)
import Text.Read.Lex                   (Lexeme (..))

-- | type = @enum@
--
--   <https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VkChromaLocation VkChromaLocation registry at www.khronos.org>
newtype VkChromaLocation = VkChromaLocation Int32
                           deriving (Eq, Ord, Enum, Storable)

instance Show VkChromaLocation where
    showsPrec _ VK_CHROMA_LOCATION_COSITED_EVEN
      = showString "VK_CHROMA_LOCATION_COSITED_EVEN"
    showsPrec _ VK_CHROMA_LOCATION_MIDPOINT
      = showString "VK_CHROMA_LOCATION_MIDPOINT"
    showsPrec p (VkChromaLocation x)
      = showParen (p >= 11)
          (showString "VkChromaLocation " . showsPrec 11 x)

instance Read VkChromaLocation where
    readPrec
      = parens
          (choose
             [("VK_CHROMA_LOCATION_COSITED_EVEN",
               pure VK_CHROMA_LOCATION_COSITED_EVEN),
              ("VK_CHROMA_LOCATION_MIDPOINT", pure VK_CHROMA_LOCATION_MIDPOINT)]
             +++
             prec 10
               (expectP (Ident "VkChromaLocation") >>
                  (VkChromaLocation <$> step readPrec)))

pattern VK_CHROMA_LOCATION_COSITED_EVEN :: VkChromaLocation

pattern VK_CHROMA_LOCATION_COSITED_EVEN = VkChromaLocation 0

pattern VK_CHROMA_LOCATION_MIDPOINT :: VkChromaLocation

pattern VK_CHROMA_LOCATION_MIDPOINT = VkChromaLocation 1

newtype VkChromaLocationKHR = VkChromaLocationKHR VkFlags
                              deriving (Eq, Ord, Enum, Bits, FiniteBits, Storable)

instance Show VkChromaLocationKHR where
    {-# INLINE showsPrec #-}
    showsPrec = coerce (showsPrec :: Int -> VkFlags -> ShowS)

instance Read VkChromaLocationKHR where
    {-# INLINE readsPrec #-}
    readsPrec = coerce (readsPrec :: Int -> ReadS VkFlags)