Graphics.Rendering.OpenGL.GL.ReadCopyPixels

This module corresponds to section 4.3 (Drawing, Reading, and Copying Pixels) of the OpenGL 2.1 specs.

Reading Pixels

readPixels :: Position -> Size -> PixelData a -> IO ()

readBuffer :: StateVar BufferMode

Copying Pixels

data PixelCopyType

Constructors

CopyColor

CopyDepth

CopyStencil

Instances

Eq PixelCopyType

Methods

(==) :: PixelCopyType -> PixelCopyType -> Bool

(/=) :: PixelCopyType -> PixelCopyType -> Bool

Ord PixelCopyType

Methods

compare :: PixelCopyType -> PixelCopyType -> Ordering

(<) :: PixelCopyType -> PixelCopyType -> Bool

(<=) :: PixelCopyType -> PixelCopyType -> Bool

(>) :: PixelCopyType -> PixelCopyType -> Bool

(>=) :: PixelCopyType -> PixelCopyType -> Bool

max :: PixelCopyType -> PixelCopyType -> PixelCopyType

min :: PixelCopyType -> PixelCopyType -> PixelCopyType

Show PixelCopyType

Methods

showsPrec :: Int -> PixelCopyType -> ShowS

show :: PixelCopyType -> String

showList :: [PixelCopyType] -> ShowS

copyPixels :: Position -> Size -> PixelCopyType -> IO ()

Copying Pixels for framebuffers

data BlitBuffer

The buffers which can be copied with blitFramebuffer.

Constructors

ColorBuffer'

StencilBuffer'

DepthBuffer'

Instances

Eq BlitBuffer

Methods

(==) :: BlitBuffer -> BlitBuffer -> Bool

(/=) :: BlitBuffer -> BlitBuffer -> Bool

Ord BlitBuffer

Methods

compare :: BlitBuffer -> BlitBuffer -> Ordering

(<) :: BlitBuffer -> BlitBuffer -> Bool

(<=) :: BlitBuffer -> BlitBuffer -> Bool

(>) :: BlitBuffer -> BlitBuffer -> Bool

(>=) :: BlitBuffer -> BlitBuffer -> Bool

max :: BlitBuffer -> BlitBuffer -> BlitBuffer

min :: BlitBuffer -> BlitBuffer -> BlitBuffer

Show BlitBuffer

Methods

showsPrec :: Int -> BlitBuffer -> ShowS

show :: BlitBuffer -> String

showList :: [BlitBuffer] -> ShowS

blitFramebuffer :: Position -> Position -> Position -> Position -> [BlitBuffer] -> TextureFilter -> IO ()