{-# language CPP #-}
-- | = Name
--
-- VK_MVK_ios_surface - instance extension
--
-- == VK_MVK_ios_surface
--
-- [__Name String__]
--     @VK_MVK_ios_surface@
--
-- [__Extension Type__]
--     Instance extension
--
-- [__Registered Extension Number__]
--     123
--
-- [__Revision__]
--     3
--
-- [__Extension and Version Dependencies__]
--
--     -   Requires Vulkan 1.0
--
--     -   Requires @VK_KHR_surface@
--
-- [__Deprecation state__]
--
--     -   /Deprecated/ by @VK_EXT_metal_surface@ extension
--
-- [__Contact__]
--
--     -   Bill Hollings
--         <https://github.com/KhronosGroup/Vulkan-Docs/issues/new?body=[VK_MVK_ios_surface] @billhollings%0A<<Here describe the issue or question you have about the VK_MVK_ios_surface extension>> >
--
-- == Other Extension Metadata
--
-- [__Last Modified Date__]
--     2020-07-31
--
-- [__IP Status__]
--     No known IP claims.
--
-- [__Contributors__]
--
--     -   Bill Hollings, The Brenwill Workshop Ltd.
--
-- == Description
--
-- The @VK_MVK_ios_surface@ extension is an instance extension. It provides
-- a mechanism to create a 'Vulkan.Extensions.Handles.SurfaceKHR' object
-- (defined by the @VK_KHR_surface@ extension) based on a @UIView@, the
-- native surface type of iOS, which is underpinned by a
-- 'Vulkan.Extensions.VK_EXT_metal_surface.CAMetalLayer', to support
-- rendering to the surface using Apple’s Metal framework.
--
-- == Deprecation by @VK_EXT_metal_surface@
--
-- The @VK_MVK_ios_surface@ extension is considered deprecated and has been
-- superseded by the @VK_EXT_metal_surface@ extension.
--
-- == New Commands
--
-- -   'createIOSSurfaceMVK'
--
-- == New Structures
--
-- -   'IOSSurfaceCreateInfoMVK'
--
-- == New Bitmasks
--
-- -   'IOSSurfaceCreateFlagsMVK'
--
-- == New Enum Constants
--
-- -   'MVK_IOS_SURFACE_EXTENSION_NAME'
--
-- -   'MVK_IOS_SURFACE_SPEC_VERSION'
--
-- -   Extending 'Vulkan.Core10.Enums.StructureType.StructureType':
--
--     -   'Vulkan.Core10.Enums.StructureType.STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK'
--
-- == Version History
--
-- -   Revision 1, 2017-02-15 (Bill Hollings)
--
--     -   Initial draft.
--
-- -   Revision 2, 2017-02-24 (Bill Hollings)
--
--     -   Minor syntax fix to emphasize firm requirement for @UIView@ to
--         be backed by a
--         'Vulkan.Extensions.VK_EXT_metal_surface.CAMetalLayer'.
--
-- -   Revision 3, 2020-07-31 (Bill Hollings)
--
--     -   Update documentation on requirements for UIView.
--
--     -   Mark as deprecated by @VK_EXT_metal_surface@.
--
-- == See Also
--
-- 'IOSSurfaceCreateFlagsMVK', 'IOSSurfaceCreateInfoMVK',
-- 'createIOSSurfaceMVK'
--
-- == Document Notes
--
-- For more information, see the
-- <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/html/vkspec.html#VK_MVK_ios_surface Vulkan Specification>
--
-- This page is a generated document. Fixes and changes should be made to
-- the generator scripts, not directly.
module Vulkan.Extensions.VK_MVK_ios_surface  ( createIOSSurfaceMVK
                                             , IOSSurfaceCreateInfoMVK(..)
                                             , IOSSurfaceCreateFlagsMVK(..)
                                             , MVK_IOS_SURFACE_SPEC_VERSION
                                             , pattern MVK_IOS_SURFACE_SPEC_VERSION
                                             , MVK_IOS_SURFACE_EXTENSION_NAME
                                             , pattern MVK_IOS_SURFACE_EXTENSION_NAME
                                             , SurfaceKHR(..)
                                             ) where

import Vulkan.Internal.Utils (enumReadPrec)
import Vulkan.Internal.Utils (enumShowsPrec)
import Vulkan.Internal.Utils (traceAroundEvent)
import Control.Exception.Base (bracket)
import Control.Monad (unless)
import Control.Monad.IO.Class (liftIO)
import Foreign.Marshal.Alloc (allocaBytes)
import Foreign.Marshal.Alloc (callocBytes)
import Foreign.Marshal.Alloc (free)
import GHC.Base (when)
import GHC.IO (throwIO)
import GHC.Ptr (nullFunPtr)
import Foreign.Ptr (nullPtr)
import Foreign.Ptr (plusPtr)
import GHC.Show (showString)
import Numeric (showHex)
import Control.Monad.Trans.Class (lift)
import Control.Monad.Trans.Cont (evalContT)
import Vulkan.CStruct (FromCStruct)
import Vulkan.CStruct (FromCStruct(..))
import Vulkan.CStruct (ToCStruct)
import Vulkan.CStruct (ToCStruct(..))
import Vulkan.Zero (Zero)
import Vulkan.Zero (Zero(..))
import Control.Monad.IO.Class (MonadIO)
import Data.Bits (Bits)
import Data.Bits (FiniteBits)
import Data.String (IsString)
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 GHC.IO.Exception (IOErrorType(..))
import GHC.IO.Exception (IOException(..))
import Foreign.Ptr (FunPtr)
import Foreign.Ptr (Ptr)
import GHC.Read (Read(readPrec))
import GHC.Show (Show(showsPrec))
import Data.Kind (Type)
import Control.Monad.Trans.Cont (ContT(..))
import Vulkan.NamedType ((:::))
import Vulkan.Core10.AllocationCallbacks (AllocationCallbacks)
import Vulkan.Core10.FundamentalTypes (Flags)
import Vulkan.Core10.Handles (Instance)
import Vulkan.Core10.Handles (Instance(..))
import Vulkan.Core10.Handles (Instance(Instance))
import Vulkan.Dynamic (InstanceCmds(pVkCreateIOSSurfaceMVK))
import Vulkan.Core10.Handles (Instance_T)
import Vulkan.Core10.Enums.Result (Result)
import Vulkan.Core10.Enums.Result (Result(..))
import Vulkan.Core10.Enums.StructureType (StructureType)
import Vulkan.Extensions.Handles (SurfaceKHR)
import Vulkan.Extensions.Handles (SurfaceKHR(..))
import Vulkan.Exception (VulkanException(..))
import Vulkan.Core10.Enums.StructureType (StructureType(STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK))
import Vulkan.Core10.Enums.Result (Result(SUCCESS))
import Vulkan.Extensions.Handles (SurfaceKHR(..))
foreign import ccall
#if !defined(SAFE_FOREIGN_CALLS)
  unsafe
#endif
  "dynamic" mkVkCreateIOSSurfaceMVK
  :: FunPtr (Ptr Instance_T -> Ptr IOSSurfaceCreateInfoMVK -> Ptr AllocationCallbacks -> Ptr SurfaceKHR -> IO Result) -> Ptr Instance_T -> Ptr IOSSurfaceCreateInfoMVK -> Ptr AllocationCallbacks -> Ptr SurfaceKHR -> IO Result

-- | vkCreateIOSSurfaceMVK - Create a VkSurfaceKHR object for an iOS UIView
--
-- = Parameters
--
-- Note
--
-- The 'createIOSSurfaceMVK' function is considered deprecated and has been
-- superseded by
-- 'Vulkan.Extensions.VK_EXT_metal_surface.createMetalSurfaceEXT' from the
-- @VK_EXT_metal_surface@ extension.
--
-- = Description
--
-- -   @instance@ is the instance with which to associate the surface.
--
-- -   @pCreateInfo@ is a pointer to a 'IOSSurfaceCreateInfoMVK' structure
--     containing parameters affecting the creation of the surface object.
--
-- -   @pAllocator@ is the allocator used for host memory allocated for the
--     surface object when there is no more specific allocator available
--     (see
--     <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/html/vkspec.html#memory-allocation Memory Allocation>).
--
-- -   @pSurface@ is a pointer to a 'Vulkan.Extensions.Handles.SurfaceKHR'
--     handle in which the created surface object is returned.
--
-- == Valid Usage (Implicit)
--
-- -   #VUID-vkCreateIOSSurfaceMVK-instance-parameter# @instance@ /must/ be
--     a valid 'Vulkan.Core10.Handles.Instance' handle
--
-- -   #VUID-vkCreateIOSSurfaceMVK-pCreateInfo-parameter# @pCreateInfo@
--     /must/ be a valid pointer to a valid 'IOSSurfaceCreateInfoMVK'
--     structure
--
-- -   #VUID-vkCreateIOSSurfaceMVK-pAllocator-parameter# If @pAllocator@ is
--     not @NULL@, @pAllocator@ /must/ be a valid pointer to a valid
--     'Vulkan.Core10.AllocationCallbacks.AllocationCallbacks' structure
--
-- -   #VUID-vkCreateIOSSurfaceMVK-pSurface-parameter# @pSurface@ /must/ be
--     a valid pointer to a 'Vulkan.Extensions.Handles.SurfaceKHR' handle
--
-- == Return Codes
--
-- [<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#fundamentals-successcodes Success>]
--
--     -   'Vulkan.Core10.Enums.Result.SUCCESS'
--
-- [<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#fundamentals-errorcodes Failure>]
--
--     -   'Vulkan.Core10.Enums.Result.ERROR_OUT_OF_HOST_MEMORY'
--
--     -   'Vulkan.Core10.Enums.Result.ERROR_OUT_OF_DEVICE_MEMORY'
--
--     -   'Vulkan.Core10.Enums.Result.ERROR_NATIVE_WINDOW_IN_USE_KHR'
--
-- = See Also
--
-- <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#VK_MVK_ios_surface VK_MVK_ios_surface>,
-- 'Vulkan.Core10.AllocationCallbacks.AllocationCallbacks',
-- 'IOSSurfaceCreateInfoMVK', 'Vulkan.Core10.Handles.Instance',
-- 'Vulkan.Extensions.Handles.SurfaceKHR'
createIOSSurfaceMVK :: forall io
                     . (MonadIO io)
                    => -- No documentation found for Nested "vkCreateIOSSurfaceMVK" "instance"
                       Instance
                    -> -- No documentation found for Nested "vkCreateIOSSurfaceMVK" "pCreateInfo"
                       IOSSurfaceCreateInfoMVK
                    -> -- No documentation found for Nested "vkCreateIOSSurfaceMVK" "pAllocator"
                       ("allocator" ::: Maybe AllocationCallbacks)
                    -> io (SurfaceKHR)
createIOSSurfaceMVK instance' createInfo allocator = liftIO . evalContT $ do
  let vkCreateIOSSurfaceMVKPtr = pVkCreateIOSSurfaceMVK (case instance' of Instance{instanceCmds} -> instanceCmds)
  lift $ unless (vkCreateIOSSurfaceMVKPtr /= nullFunPtr) $
    throwIO $ IOError Nothing InvalidArgument "" "The function pointer for vkCreateIOSSurfaceMVK is null" Nothing Nothing
  let vkCreateIOSSurfaceMVK' = mkVkCreateIOSSurfaceMVK vkCreateIOSSurfaceMVKPtr
  pCreateInfo <- ContT $ withCStruct (createInfo)
  pAllocator <- case (allocator) of
    Nothing -> pure nullPtr
    Just j -> ContT $ withCStruct (j)
  pPSurface <- ContT $ bracket (callocBytes @SurfaceKHR 8) free
  r <- lift $ traceAroundEvent "vkCreateIOSSurfaceMVK" (vkCreateIOSSurfaceMVK' (instanceHandle (instance')) pCreateInfo pAllocator (pPSurface))
  lift $ when (r < SUCCESS) (throwIO (VulkanException r))
  pSurface <- lift $ peek @SurfaceKHR pPSurface
  pure $ (pSurface)


-- | VkIOSSurfaceCreateInfoMVK - Structure specifying parameters of a newly
-- created iOS surface object
--
-- == Valid Usage
--
-- -   #VUID-VkIOSSurfaceCreateInfoMVK-pView-04143# If @pView@ is a
--     'Vulkan.Extensions.VK_EXT_metal_surface.CAMetalLayer' object, it
--     /must/ be a valid
--     'Vulkan.Extensions.VK_EXT_metal_surface.CAMetalLayer'
--
-- -   #VUID-VkIOSSurfaceCreateInfoMVK-pView-01316# If @pView@ is a
--     @UIView@ object, it /must/ be a valid @UIView@, /must/ be backed by
--     a @CALayer@ object of type
--     'Vulkan.Extensions.VK_EXT_metal_surface.CAMetalLayer', and
--     'createIOSSurfaceMVK' /must/ be called on the main thread
--
-- == Valid Usage (Implicit)
--
-- -   #VUID-VkIOSSurfaceCreateInfoMVK-sType-sType# @sType@ /must/ be
--     'Vulkan.Core10.Enums.StructureType.STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK'
--
-- -   #VUID-VkIOSSurfaceCreateInfoMVK-pNext-pNext# @pNext@ /must/ be
--     @NULL@
--
-- -   #VUID-VkIOSSurfaceCreateInfoMVK-flags-zerobitmask# @flags@ /must/ be
--     @0@
--
-- = See Also
--
-- <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#VK_MVK_ios_surface VK_MVK_ios_surface>,
-- 'IOSSurfaceCreateFlagsMVK',
-- 'Vulkan.Core10.Enums.StructureType.StructureType', 'createIOSSurfaceMVK'
data IOSSurfaceCreateInfoMVK = IOSSurfaceCreateInfoMVK
  { -- | @flags@ is reserved for future use.
    flags :: IOSSurfaceCreateFlagsMVK
  , -- | @pView@ is a reference to either a
    -- 'Vulkan.Extensions.VK_EXT_metal_surface.CAMetalLayer' object or a
    -- @UIView@ object.
    view :: Ptr ()
  }
  deriving (Typeable)
#if defined(GENERIC_INSTANCES)
deriving instance Generic (IOSSurfaceCreateInfoMVK)
#endif
deriving instance Show IOSSurfaceCreateInfoMVK

instance ToCStruct IOSSurfaceCreateInfoMVK where
  withCStruct x f = allocaBytes 32 $ \p -> pokeCStruct p x (f p)
  pokeCStruct p IOSSurfaceCreateInfoMVK{..} f = do
    poke ((p `plusPtr` 0 :: Ptr StructureType)) (STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK)
    poke ((p `plusPtr` 8 :: Ptr (Ptr ()))) (nullPtr)
    poke ((p `plusPtr` 16 :: Ptr IOSSurfaceCreateFlagsMVK)) (flags)
    poke ((p `plusPtr` 24 :: Ptr (Ptr ()))) (view)
    f
  cStructSize = 32
  cStructAlignment = 8
  pokeZeroCStruct p f = do
    poke ((p `plusPtr` 0 :: Ptr StructureType)) (STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK)
    poke ((p `plusPtr` 8 :: Ptr (Ptr ()))) (nullPtr)
    poke ((p `plusPtr` 24 :: Ptr (Ptr ()))) (zero)
    f

instance FromCStruct IOSSurfaceCreateInfoMVK where
  peekCStruct p = do
    flags <- peek @IOSSurfaceCreateFlagsMVK ((p `plusPtr` 16 :: Ptr IOSSurfaceCreateFlagsMVK))
    pView <- peek @(Ptr ()) ((p `plusPtr` 24 :: Ptr (Ptr ())))
    pure $ IOSSurfaceCreateInfoMVK
             flags pView

instance Storable IOSSurfaceCreateInfoMVK where
  sizeOf ~_ = 32
  alignment ~_ = 8
  peek = peekCStruct
  poke ptr poked = pokeCStruct ptr poked (pure ())

instance Zero IOSSurfaceCreateInfoMVK where
  zero = IOSSurfaceCreateInfoMVK
           zero
           zero


-- | VkIOSSurfaceCreateFlagsMVK - Reserved for future use
--
-- = Description
--
-- 'IOSSurfaceCreateFlagsMVK' is a bitmask type for setting a mask, but is
-- currently reserved for future use.
--
-- = See Also
--
-- <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#VK_MVK_ios_surface VK_MVK_ios_surface>,
-- 'IOSSurfaceCreateInfoMVK'
newtype IOSSurfaceCreateFlagsMVK = IOSSurfaceCreateFlagsMVK Flags
  deriving newtype (Eq, Ord, Storable, Zero, Bits, FiniteBits)



conNameIOSSurfaceCreateFlagsMVK :: String
conNameIOSSurfaceCreateFlagsMVK = "IOSSurfaceCreateFlagsMVK"

enumPrefixIOSSurfaceCreateFlagsMVK :: String
enumPrefixIOSSurfaceCreateFlagsMVK = ""

showTableIOSSurfaceCreateFlagsMVK :: [(IOSSurfaceCreateFlagsMVK, String)]
showTableIOSSurfaceCreateFlagsMVK = []

instance Show IOSSurfaceCreateFlagsMVK where
  showsPrec = enumShowsPrec enumPrefixIOSSurfaceCreateFlagsMVK
                            showTableIOSSurfaceCreateFlagsMVK
                            conNameIOSSurfaceCreateFlagsMVK
                            (\(IOSSurfaceCreateFlagsMVK x) -> x)
                            (\x -> showString "0x" . showHex x)

instance Read IOSSurfaceCreateFlagsMVK where
  readPrec = enumReadPrec enumPrefixIOSSurfaceCreateFlagsMVK
                          showTableIOSSurfaceCreateFlagsMVK
                          conNameIOSSurfaceCreateFlagsMVK
                          IOSSurfaceCreateFlagsMVK


type MVK_IOS_SURFACE_SPEC_VERSION = 3

-- No documentation found for TopLevel "VK_MVK_IOS_SURFACE_SPEC_VERSION"
pattern MVK_IOS_SURFACE_SPEC_VERSION :: forall a . Integral a => a
pattern MVK_IOS_SURFACE_SPEC_VERSION = 3


type MVK_IOS_SURFACE_EXTENSION_NAME = "VK_MVK_ios_surface"

-- No documentation found for TopLevel "VK_MVK_IOS_SURFACE_EXTENSION_NAME"
pattern MVK_IOS_SURFACE_EXTENSION_NAME :: forall a . (Eq a, IsString a) => a
pattern MVK_IOS_SURFACE_EXTENSION_NAME = "VK_MVK_ios_surface"

