{-# language CPP #-}
-- No documentation found for Chapter "Promoted_From_VK_KHR_uniform_buffer_standard_layout"
module Vulkan.Core12.Promoted_From_VK_KHR_uniform_buffer_standard_layout  ( PhysicalDeviceUniformBufferStandardLayoutFeatures(..)
                                                                          , StructureType(..)
                                                                          ) where

import Foreign.Marshal.Alloc (allocaBytes)
import Foreign.Ptr (nullPtr)
import Foreign.Ptr (plusPtr)
import Vulkan.CStruct (FromCStruct)
import Vulkan.CStruct (FromCStruct(..))
import Vulkan.CStruct (ToCStruct)
import Vulkan.CStruct (ToCStruct(..))
import Vulkan.Zero (Zero(..))
import Data.Typeable (Typeable)
import Foreign.Storable (Storable)
import Foreign.Storable (Storable(peek))
import Foreign.Storable (Storable(poke))
import qualified Foreign.Storable (Storable(..))
import GHC.Generics (Generic)
import Foreign.Ptr (Ptr)
import Data.Kind (Type)
import Vulkan.Core10.FundamentalTypes (bool32ToBool)
import Vulkan.Core10.FundamentalTypes (boolToBool32)
import Vulkan.Core10.FundamentalTypes (Bool32)
import Vulkan.Core10.Enums.StructureType (StructureType)
import Vulkan.Core10.Enums.StructureType (StructureType(STRUCTURE_TYPE_PHYSICAL_DEVICE_UNIFORM_BUFFER_STANDARD_LAYOUT_FEATURES))
import Vulkan.Core10.Enums.StructureType (StructureType(..))
-- | VkPhysicalDeviceUniformBufferStandardLayoutFeatures - Structure
-- indicating support for std430-like packing in uniform buffers
--
-- = Members
--
-- This structure describes the following feature:
--
-- = Description
--
-- If the 'PhysicalDeviceUniformBufferStandardLayoutFeatures' structure is
-- included in the @pNext@ chain of the
-- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.PhysicalDeviceFeatures2'
-- structure passed to
-- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.getPhysicalDeviceFeatures2',
-- it is filled in to indicate whether each corresponding feature is
-- supported. 'PhysicalDeviceUniformBufferStandardLayoutFeatures' /can/
-- also be used in the @pNext@ chain of
-- 'Vulkan.Core10.Device.DeviceCreateInfo' to selectively enable these
-- features.
--
-- == Valid Usage (Implicit)
--
-- = See Also
--
-- <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#VK_KHR_uniform_buffer_standard_layout VK_KHR_uniform_buffer_standard_layout>,
-- <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#VK_VERSION_1_2 VK_VERSION_1_2>,
-- 'Vulkan.Core10.FundamentalTypes.Bool32',
-- 'Vulkan.Core10.Enums.StructureType.StructureType'
data PhysicalDeviceUniformBufferStandardLayoutFeatures = PhysicalDeviceUniformBufferStandardLayoutFeatures
  { -- | #extension-features-uniformBufferStandardLayout#
    -- @uniformBufferStandardLayout@ indicates that the implementation supports
    -- the same layouts for uniform buffers as for storage and other kinds of
    -- buffers. See
    -- <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#interfaces-resources-standard-layout Standard Buffer Layout>.
    uniformBufferStandardLayout :: Bool }
  deriving (Typeable, Eq)
#if defined(GENERIC_INSTANCES)
deriving instance Generic (PhysicalDeviceUniformBufferStandardLayoutFeatures)
#endif
deriving instance Show PhysicalDeviceUniformBufferStandardLayoutFeatures

instance ToCStruct PhysicalDeviceUniformBufferStandardLayoutFeatures where
  withCStruct x f = allocaBytes 24 $ \p -> pokeCStruct p x (f p)
  pokeCStruct p PhysicalDeviceUniformBufferStandardLayoutFeatures{..} f = do
    poke ((p `plusPtr` 0 :: Ptr StructureType)) (STRUCTURE_TYPE_PHYSICAL_DEVICE_UNIFORM_BUFFER_STANDARD_LAYOUT_FEATURES)
    poke ((p `plusPtr` 8 :: Ptr (Ptr ()))) (nullPtr)
    poke ((p `plusPtr` 16 :: Ptr Bool32)) (boolToBool32 (uniformBufferStandardLayout))
    f
  cStructSize = 24
  cStructAlignment = 8
  pokeZeroCStruct p f = do
    poke ((p `plusPtr` 0 :: Ptr StructureType)) (STRUCTURE_TYPE_PHYSICAL_DEVICE_UNIFORM_BUFFER_STANDARD_LAYOUT_FEATURES)
    poke ((p `plusPtr` 8 :: Ptr (Ptr ()))) (nullPtr)
    poke ((p `plusPtr` 16 :: Ptr Bool32)) (boolToBool32 (zero))
    f

instance FromCStruct PhysicalDeviceUniformBufferStandardLayoutFeatures where
  peekCStruct p = do
    uniformBufferStandardLayout <- peek @Bool32 ((p `plusPtr` 16 :: Ptr Bool32))
    pure $ PhysicalDeviceUniformBufferStandardLayoutFeatures
             (bool32ToBool uniformBufferStandardLayout)

instance Storable PhysicalDeviceUniformBufferStandardLayoutFeatures where
  sizeOf ~_ = 24
  alignment ~_ = 8
  peek = peekCStruct
  poke ptr poked = pokeCStruct ptr poked (pure ())

instance Zero PhysicalDeviceUniformBufferStandardLayoutFeatures where
  zero = PhysicalDeviceUniformBufferStandardLayoutFeatures
           zero