    {-# LANGUAGE ForeignFunctionInterface, CPP #-}
    --------------------------------------------------------------------------------
    -- |
    -- Module      :  Graphics.Rendering.OpenGL.Raw.EXT.PixelTransform
    -- Copyright   :  (c) Sven Panne 2009
    -- License     :  BSD-style (see the file LICENSE)
    --
    -- Maintainer  :  sven.panne@aedion.de
    -- Stability   :  stable
    -- Portability :  portable
    --
    -- All raw functions and tokens from the EXT_pixel_transform extension, see
    -- <http://www.opengl.org/registry/specs/EXT/pixel_transform.txt>.
    --
    --------------------------------------------------------------------------------

    module Graphics.Rendering.OpenGL.Raw.EXT.PixelTransform (
       -- * Functions
       glPixelTransformParameteri,
       glPixelTransformParameterf,
       glPixelTransformParameteriv,
       glPixelTransformParameterfv,
       glGetPixelTransformParameteriv,
       glGetPixelTransformParameterfv,
       -- * Tokens
       gl_PIXEL_MAG_FILTER,
       gl_PIXEL_MIN_FILTER,
       gl_PIXEL_CUBIC_WEIGHT,
       gl_CUBIC,
       gl_AVERAGE,
       gl_PIXEL_TRANSFORM_2D,
       gl_PIXEL_TRANSFORM_2D_STACK_DEPTH,
       gl_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH,
       gl_PIXEL_TRANSFORM_2D_MATRIX
    ) where

    import Foreign.Ptr
    import Foreign.C.Types
    import Graphics.Rendering.OpenGL.Raw.Core32
    import Graphics.Rendering.OpenGL.Raw.Extensions

    #include "HsOpenGLRaw.h"

    extensionNameString :: String
    extensionNameString = "GL_EXT_pixel_transform"

    EXTENSION_ENTRY(glPixelTransformParameteri,GLenum -> GLenum -> GLint -> IO ())
    EXTENSION_ENTRY(glPixelTransformParameterf,GLenum -> GLenum -> GLfloat -> IO ())
    EXTENSION_ENTRY(glPixelTransformParameteriv,GLenum -> GLenum -> Ptr GLint -> IO ())
    EXTENSION_ENTRY(glPixelTransformParameterfv,GLenum -> GLenum -> Ptr GLfloat -> IO ())
    EXTENSION_ENTRY(glGetPixelTransformParameteriv,GLenum -> GLenum -> Ptr GLint -> IO ())
    EXTENSION_ENTRY(glGetPixelTransformParameterfv,GLenum -> GLenum -> Ptr GLfloat -> IO ())

    gl_PIXEL_MAG_FILTER :: GLenum
    gl_PIXEL_MAG_FILTER = 0x8331

    gl_PIXEL_MIN_FILTER :: GLenum
    gl_PIXEL_MIN_FILTER = 0x8332

    gl_PIXEL_CUBIC_WEIGHT :: GLenum
    gl_PIXEL_CUBIC_WEIGHT = 0x8333

    gl_CUBIC :: GLenum
    gl_CUBIC = 0x8334

    gl_AVERAGE :: GLenum
    gl_AVERAGE = 0x8335

    gl_PIXEL_TRANSFORM_2D :: GLenum
    gl_PIXEL_TRANSFORM_2D = 0x8330

    gl_PIXEL_TRANSFORM_2D_STACK_DEPTH :: GLenum
    gl_PIXEL_TRANSFORM_2D_STACK_DEPTH = 0x8336

    gl_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH :: GLenum
    gl_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH = 0x8337

    gl_PIXEL_TRANSFORM_2D_MATRIX :: GLenum
    gl_PIXEL_TRANSFORM_2D_MATRIX = 0x8338