vulkan-tutorial/src/Instance.hs

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{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE DataKinds #-}
module Instance where
import Control.Monad.IO.Class
import Control.Monad.Trans.Resource
import qualified Data.ByteString as BS
import qualified Data.Vector as V
import qualified SDL hiding (V2)
import qualified SDL.Video.Vulkan as SDL
import qualified Vulkan as Vk
import qualified Vulkan.Zero as Vk
createInstance :: MonadResource m => SDL.Window -> m Vk.Instance
createInstance window = do
windowExtensions <- liftIO $ fmap (
[ Vk.EXT_DEBUG_UTILS_EXTENSION_NAME
] ++) $
traverse BS.packCString =<< SDL.vkGetInstanceExtensions window
liftIO $ do
putStrLn "activating following extensions:"
print windowExtensions
let createInfo = Vk.zero
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{ Vk.applicationInfo = Just Vk.zero
{ Vk.applicationName = Just "Haskell ❤️ Vulkan"
, Vk.apiVersion = Vk.API_VERSION_1_3
}
-- enable debug util extension for debugging purposes
, Vk.enabledExtensionNames = V.fromList windowExtensions
-- enable validation layer for debugging purposes
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, Vk.enabledLayerNames = V.singleton "VK_LAYER_KHRONOS_validation"
}
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(_, inst) <- Vk.withInstance createInfo Nothing allocate
return inst