Graphics.GLUtil.Textures

Utilities for loading texture data.

Documentation

data TexColor

Pixel format of image data.

Constructors

TexMono

TexRGB

TexBGR

TexRGBA

data TexInfo a

A basic texture information record.

Constructors

TexInfo

Fields

texWidth :: GLsizei

texHeight :: GLsizei

texColor :: TexColor

texData :: a

texInfo :: Int -> Int -> TexColor -> a -> TexInfo a

Helper for constructing a TexInfo using Haskell Ints for image dimensions.

class Storable a => HasGLType a where

Open mapping from Haskell types to OpenGL types.

Methods

glType :: a -> DataType

Instances

HasGLType Float

HasGLType Int

HasGLType Word8

HasGLType Word16

class HasGLType (Elem a) => IsPixelData a where

Class for containers of texture data.

Associated Types

type Elem a

Methods

withPixels :: a -> (Ptr (Elem a) -> IO c) -> IO c

Instances

IsPixelData ByteString

IsPixelData ShortString

(HasGLType (Elem [b]), HasGLType b) => IsPixelData [b]

(HasGLType (Elem (Ptr b)), HasGLType b) => IsPixelData (Ptr b)

(HasGLType (Elem (ForeignPtr b)), HasGLType b) => IsPixelData (ForeignPtr b)

(HasGLType (Elem (Vector b)), HasGLType b) => IsPixelData (Vector b)

(HasGLType (Elem (StorableArray i b)), HasGLType b) => IsPixelData (StorableArray i b)

newtype ShortString

Wrapper whose IsPixelData instance treats the pointer underlying a ByteString as an array of Word16s.

Constructors

ShortString ByteString

Instances

IsPixelData ShortString

loadTexture :: IsPixelData a => TexInfo a -> IO TextureObject

Create a new 2D texture with data from a TexInfo.

reloadTexture :: forall a. IsPixelData a => TextureObject -> TexInfo a -> IO ()

Replace a 2D texture's pixel data with data from a TexInfo.