module Render.DepthOnly.Pipeline
  ( Pipeline
  , allocate

  , Config
  , config

  , stageCode
  , stageSpirv
  ) where

import RIO

import Control.Monad.Trans.Resource (ResourceT)
import Data.Tagged (Tagged(..))
import Vulkan.Core10 qualified as Vk

import Engine.Vulkan.Pipeline.Graphics qualified as Graphics
import Engine.Vulkan.Types (DsLayoutBindings, HasVulkan, HasRenderPass(..))
import Geomancy (Transform)
import Render.Code (compileVert)
import Render.DepthOnly.Code qualified as Code
import Render.DescSets.Set0 (Scene)
import Resource.Model (Vertex3d)

type Pipeline = Graphics.Pipeline '[Scene] (Vertex3d ()) Transform
type Config = Graphics.Configure Pipeline
type instance Graphics.Specialization Pipeline = ()

allocate
  :: ( HasVulkan env
     , HasRenderPass renderpass
     )
  => Vk.SampleCountFlagBits
  -> Tagged Scene DsLayoutBindings
  -> renderpass
  -> ResourceT (RIO env) Pipeline
allocate :: forall env renderpass.
(HasVulkan env, HasRenderPass renderpass) =>
SampleCountFlagBits
-> Tagged Scene DsLayoutBindings
-> renderpass
-> ResourceT (RIO env) Pipeline
allocate SampleCountFlagBits
multisample Tagged Scene DsLayoutBindings
tset0 renderpass
rp = do
  (ReleaseKey
_, Pipeline
p) <- forall config pipeline (dsl :: [*]) vertices instances spec env
       (m :: * -> *) renderpass.
(config ~ Configure pipeline,
 pipeline ~ Pipeline dsl vertices instances,
 spec ~ Specialization pipeline, Specialization spec, HasCallStack,
 MonadVulkan env m, MonadResource m, HasRenderPass renderpass) =>
Maybe Extent2D
-> SampleCountFlagBits
-> Config dsl vertices instances spec
-> renderpass
-> m (ReleaseKey, pipeline)
Graphics.allocate
    forall a. Maybe a
Nothing
    SampleCountFlagBits
multisample
    (Tagged Scene DsLayoutBindings -> Configure Pipeline
config Tagged Scene DsLayoutBindings
tset0)
    renderpass
rp
  forall (f :: * -> *) a. Applicative f => a -> f a
pure Pipeline
p

config :: Tagged Scene DsLayoutBindings -> Config
config :: Tagged Scene DsLayoutBindings -> Configure Pipeline
config (Tagged DsLayoutBindings
set0) = forall vertices instances. Config '[] vertices instances ()
Graphics.baseConfig
  { $sel:cDescLayouts:Config :: Tagged '[Scene] [DsLayoutBindings]
Graphics.cDescLayouts  = forall {k} (s :: k) b. b -> Tagged s b
Tagged @'[Scene] [DsLayoutBindings
set0]
  , $sel:cStages:Config :: StageSpirv
Graphics.cStages       = StageSpirv
stageSpirv
  , $sel:cVertexInput:Config :: SomeStruct PipelineVertexInputStateCreateInfo
Graphics.cVertexInput  = forall a (pipeLayout :: [*]) vertices instances.
(a ~ Pipeline pipeLayout vertices instances,
 HasVertexInputBindings vertices,
 HasVertexInputBindings instances) =>
SomeStruct PipelineVertexInputStateCreateInfo
Graphics.vertexInput @Pipeline
  }

stageCode  :: Graphics.StageCode
stageCode :: StageCode
stageCode = forall a. ("vert" ::: a) -> Stages (Maybe ("vert" ::: a))
Graphics.vertexOnly Code
Code.vert

stageSpirv :: Graphics.StageSpirv
stageSpirv :: StageSpirv
stageSpirv = forall a. ("vert" ::: a) -> Stages (Maybe ("vert" ::: a))
Graphics.vertexOnly ByteString
vertSpirv

vertSpirv :: ByteString
vertSpirv :: ByteString
vertSpirv = $(compileVert Code.vert)