vulkan-tutorial/src/Draw.hs

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{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE DuplicateRecordFields #-}
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{-# LANGUAGE FlexibleContexts #-}
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module Draw where
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import qualified Control.Concurrent.STM as STM
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import Control.Monad
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import Control.Monad.IO.Class
import Control.Monad.Reader
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import Control.Monad.Trans.Resource
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import qualified Data.Map.Strict as M
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import qualified Data.Vector as V
import qualified Vulkan.Core10 as Vk
import qualified Vulkan.Extensions.VK_KHR_swapchain as Khr
import qualified Vulkan.CStruct.Extends as Vk
import qualified Vulkan.Zero as Vk
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-- internal imports
import CommandBuffer
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import Types
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import Util (getFrame)
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drawFrame
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:: (MonadResource m, MonadFail m, MonadReader ReadState m)
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=> EngineData
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-> Int
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-> m ()
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drawFrame engineData frameNumber = do
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let frame = getFrame engineData frameNumber
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void $ Vk.waitForFences
(engineLogicalDevice engineData)
(V.singleton $ frameRenderFence frame)
True
maxBound
Vk.resetFences (engineLogicalDevice engineData) (V.singleton $ frameRenderFence frame)
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(imageResult, index) <-
Khr.acquireNextImageKHR
(engineLogicalDevice engineData)
(engineSwapchain engineData)
maxBound
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(frameRenderSemaphore frame)
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Vk.NULL_HANDLE
unless (imageResult == Vk.SUCCESS) $
error "drawFrame: Failed acquiring next image from swapchain"
-- liftIO $ putStrLn "resetting command buffer"
Vk.resetCommandBuffer
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(frameMainCommandBuffer frame) (Vk.CommandBufferResetFlagBits 0)
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matLibrary <- (liftIO . STM.atomically. STM.readTMVar) =<< asks materialLibrary
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-- liftIO $ putStrLn "recording command buffer"
recordCommandBuffer
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(frameMainCommandBuffer frame)
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(engineRenderPass engineData)
(engineFramebuffers engineData V.! fromIntegral index)
(engineWindowDimensions engineData)
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(materialPipeline $ matLibrary M.! "defaultMesh")
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(engineAllocator engineData)
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(engineSceneParameters engineData)
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frame
frameNumber
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let submitInfo = Vk.zero
{ Vk.waitSemaphores =
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V.singleton $ frameRenderSemaphore frame
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, Vk.waitDstStageMask =
V.singleton Vk.PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT
, Vk.commandBuffers =
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V.singleton (Vk.commandBufferHandle $ frameMainCommandBuffer frame)
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, Vk.signalSemaphores =
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V.singleton $ framePresentSemaphore frame
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}
Vk.queueSubmit
(engineQueue engineData)
(V.singleton (Vk.SomeStruct submitInfo))
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(frameRenderFence frame)
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let presentInfo = Vk.zero
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{ Khr.waitSemaphores = V.singleton $ framePresentSemaphore frame
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, Khr.swapchains = V.singleton $ engineSwapchain engineData
, Khr.imageIndices = V.singleton index
}
presentResult <- Khr.queuePresentKHR (engineQueue engineData) presentInfo
unless (presentResult == Vk.SUCCESS) $
error "drawFrame: presentation failed"