{-# language CPP #-}
module Vulkan.Core10.Enums.ColorComponentFlagBits  ( ColorComponentFlagBits( COLOR_COMPONENT_R_BIT
                                                                           , COLOR_COMPONENT_G_BIT
                                                                           , COLOR_COMPONENT_B_BIT
                                                                           , COLOR_COMPONENT_A_BIT
                                                                           , ..
                                                                           )
                                                   , ColorComponentFlags
                                                   ) where

import GHC.Read (choose)
import GHC.Read (expectP)
import GHC.Read (parens)
import GHC.Show (showParen)
import GHC.Show (showString)
import Numeric (showHex)
import Text.ParserCombinators.ReadPrec ((+++))
import Text.ParserCombinators.ReadPrec (prec)
import Text.ParserCombinators.ReadPrec (step)
import Data.Bits (Bits)
import Foreign.Storable (Storable)
import GHC.Read (Read(readPrec))
import Text.Read.Lex (Lexeme(Ident))
import Vulkan.Core10.FundamentalTypes (Flags)
import Vulkan.Zero (Zero)
-- | VkColorComponentFlagBits - Bitmask controlling which components are
-- written to the framebuffer
--
-- = Description
--
-- The color write mask operation is applied regardless of whether blending
-- is enabled.
--
-- = See Also
--
-- 'ColorComponentFlags'
newtype ColorComponentFlagBits = ColorComponentFlagBits Flags
  deriving newtype (Eq, Ord, Storable, Zero, Bits)

-- | 'COLOR_COMPONENT_R_BIT' specifies that the R value is written to the
-- color attachment for the appropriate sample. Otherwise, the value in
-- memory is unmodified.
pattern COLOR_COMPONENT_R_BIT = ColorComponentFlagBits 0x00000001
-- | 'COLOR_COMPONENT_G_BIT' specifies that the G value is written to the
-- color attachment for the appropriate sample. Otherwise, the value in
-- memory is unmodified.
pattern COLOR_COMPONENT_G_BIT = ColorComponentFlagBits 0x00000002
-- | 'COLOR_COMPONENT_B_BIT' specifies that the B value is written to the
-- color attachment for the appropriate sample. Otherwise, the value in
-- memory is unmodified.
pattern COLOR_COMPONENT_B_BIT = ColorComponentFlagBits 0x00000004
-- | 'COLOR_COMPONENT_A_BIT' specifies that the A value is written to the
-- color attachment for the appropriate sample. Otherwise, the value in
-- memory is unmodified.
pattern COLOR_COMPONENT_A_BIT = ColorComponentFlagBits 0x00000008

type ColorComponentFlags = ColorComponentFlagBits

instance Show ColorComponentFlagBits where
  showsPrec p = \case
    COLOR_COMPONENT_R_BIT -> showString "COLOR_COMPONENT_R_BIT"
    COLOR_COMPONENT_G_BIT -> showString "COLOR_COMPONENT_G_BIT"
    COLOR_COMPONENT_B_BIT -> showString "COLOR_COMPONENT_B_BIT"
    COLOR_COMPONENT_A_BIT -> showString "COLOR_COMPONENT_A_BIT"
    ColorComponentFlagBits x -> showParen (p >= 11) (showString "ColorComponentFlagBits 0x" . showHex x)

instance Read ColorComponentFlagBits where
  readPrec = parens (choose [("COLOR_COMPONENT_R_BIT", pure COLOR_COMPONENT_R_BIT)
                            , ("COLOR_COMPONENT_G_BIT", pure COLOR_COMPONENT_G_BIT)
                            , ("COLOR_COMPONENT_B_BIT", pure COLOR_COMPONENT_B_BIT)
                            , ("COLOR_COMPONENT_A_BIT", pure COLOR_COMPONENT_A_BIT)]
                     +++
                     prec 10 (do
                       expectP (Ident "ColorComponentFlagBits")
                       v <- step readPrec
                       pure (ColorComponentFlagBits v)))