vulkan-tutorial/src/Memory.hs
2022-12-02 20:34:35 +01:00

46 lines
1.4 KiB
Haskell

{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE DataKinds #-}
module Memory where
import Control.Monad.IO.Class (liftIO)
import Control.Monad.Trans.Resource
import Foreign.Ptr
import Foreign.Storable
import qualified VulkanMemoryAllocator as VMA
import qualified Vulkan.Core10 as Vk
import qualified Vulkan.Dynamic as Vk
import qualified Vulkan.Zero as Vk
initAllocator
:: (MonadResource m, MonadFail m)
=> Vk.PhysicalDevice
-> Vk.Device
-> Vk.Instance
-> m VMA.Allocator
initAllocator physicalDevice device instance' = do
let instanceProcAddr = castFunPtr $
Vk.pVkGetInstanceProcAddr ((Vk.instanceCmds :: Vk.Instance -> Vk.InstanceCmds) instance')
deviceProcAddr = castFunPtr $
Vk.pVkGetDeviceProcAddr ((Vk.deviceCmds :: Vk.Device -> Vk.DeviceCmds) device)
let allocatorInfo = Vk.zero
{ VMA.physicalDevice = Vk.physicalDeviceHandle physicalDevice
, VMA.device = Vk.deviceHandle device
, VMA.instance' = Vk.instanceHandle instance'
, VMA.vulkanFunctions = Just (Vk.zero
{ VMA.vkGetInstanceProcAddr = instanceProcAddr
, VMA.vkGetDeviceProcAddr = deviceProcAddr
} :: VMA.VulkanFunctions)
} :: VMA.AllocatorCreateInfo
(_, allocator) <- allocate
(VMA.createAllocator allocatorInfo)
(\allocator -> do
putStrLn "destroying allocator"
VMA.destroyAllocator allocator
)
return allocator