Safe Haskell	None
Language	Haskell2010

Graphics.Rendering.Ombra.Draw.Internal

Synopsis

Documentation

data Draw a Source #

A state monad on top of GL.

Instances

Monad Draw Source #
Methods (>>=) :: Draw a -> (a -> Draw b) -> Draw b # (>>) :: Draw a -> Draw b -> Draw b # return :: a -> Draw a # fail :: String -> Draw a #
Functor Draw Source #
Methods fmap :: (a -> b) -> Draw a -> Draw b # (<$) :: a -> Draw b -> Draw a #
Applicative Draw Source #
Methods pure :: a -> Draw a # (<>) :: Draw (a -> b) -> Draw a -> Draw b # (>) :: Draw a -> Draw b -> Draw b # (<*) :: Draw a -> Draw b -> Draw a #
MonadIO Draw Source #
Methods liftIO :: IO a -> Draw a #

data DrawState Source #

The state of the Draw monad.

drawState Source #

Arguments

:: GLES
=> Int	Viewport width
-> Int	Viewport height
-> IO DrawState

Create a DrawState.

drawInit :: GLES => Draw () Source #

clearBuffers :: GLES => [Buffer] -> Draw () Source #

drawLayer :: GLES => Layer -> Draw () Source #

Draw a Layer.

drawGroup :: GLES => GroupState -> Group gs is -> Draw () Source #

Draw a Group.

drawObject :: GLES => Object gs is -> Draw () Source #

Draw an Object.

removeGeometry :: GLES => Geometry is -> Draw () Source #

Manually delete a Geometry from the GPU (this is automatically done when the Geometry becomes unreachable). Note that if you try to draw it, it will be allocated again.

removeTexture :: GLES => Texture -> Draw () Source #

Manually delete a Texture from the GPU.

removeProgram :: GLES => Program gs is -> Draw () Source #

Manually delete a Program from the GPU.

textureUniform :: GLES => Texture -> Draw ActiveTexture Source #

This helps you set the uniforms of type Sampler2D.

textureSize :: (GLES, Num a) => Texture -> Draw (a, a) Source #

Get the dimensions of a Texture.

setProgram :: GLES => Program g i -> Draw () Source #

Set the program.

resizeViewport Source #

Arguments

:: GLES
=> Int	Width.
-> Int	Height.
-> Draw ()

Viewport.

runDraw :: Draw a -> DrawState -> GL (a, DrawState) Source #

Run a Draw action.

execDraw Source #

Arguments

:: Draw a	Action.
-> DrawState	State.
-> GL DrawState

Execute a Draw action.

evalDraw Source #

Arguments

:: Draw a	Action.
-> DrawState	State.
-> GL a

Evaluate a Draw action.

gl :: GL a -> Draw a Source #

Perform a GL action in the Draw monad.

renderLayer :: GLES => RenderLayer a -> Draw (a, [Texture]) Source #

Realize a RenderLayer. It returns the list of allocated Textures so that you can free them if you want.

layerToTexture Source #

Arguments

:: (GLES, Integral a)
=> Bool	Draw buffers
-> [LayerType]	Textures contents
-> a	Width
-> a	Height
-> Layer	Layer to draw
-> Either b ([Color] -> Draw b, Int, Int, Int, Int)	Color inspecting function, start x, start y, width, height
-> Either c ([Word8] -> Draw c, Int, Int, Int, Int)	Depth inspecting, function, etc.
-> Draw ([Texture], b, c)

Draw a Layer on some textures.

drawGet :: Draw DrawState Source #

Get the DrawState.