<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ --> <title>Graphics/Rendering/OpenGL/GL/PixelRectangles/Minmax.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-2"></a><span class='hs-comment'>-- |</span> <a name="line-3"></a><span class='hs-comment'>-- Module : Graphics.Rendering.OpenGL.GL.PixelRectangles.Minmax</span> <a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Sven Panne 2002-2009</span> <a name="line-5"></a><span class='hs-comment'>-- License : BSD-style (see the file libraries/OpenGL/LICENSE)</span> <a name="line-6"></a><span class='hs-comment'>-- </span> <a name="line-7"></a><span class='hs-comment'>-- Maintainer : sven.panne@aedion.de</span> <a name="line-8"></a><span class='hs-comment'>-- Stability : stable</span> <a name="line-9"></a><span class='hs-comment'>-- Portability : portable</span> <a name="line-10"></a><span class='hs-comment'>--</span> <a name="line-11"></a><span class='hs-comment'>-- This module corresponds to a part of section 3.6.1 (Pixel Storage Modes) of</span> <a name="line-12"></a><span class='hs-comment'>-- the OpenGL 2.1 specs.</span> <a name="line-13"></a><span class='hs-comment'>--</span> <a name="line-14"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-15"></a> <a name="line-16"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>Minmax</span> <span class='hs-layout'>(</span> <a name="line-17"></a> <span class='hs-varid'>minmax</span><span class='hs-layout'>,</span> <span class='hs-varid'>getMinmax</span><span class='hs-layout'>,</span> <span class='hs-varid'>resetMinmax</span> <a name="line-18"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-19"></a> <a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Marshal</span><span class='hs-varop'>.</span><span class='hs-conid'>Alloc</span> <span class='hs-layout'>(</span> <span class='hs-varid'>alloca</span> <span class='hs-layout'>)</span> <a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>)</span> <a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>Capability</span> <span class='hs-layout'>(</span> <a name="line-23"></a> <span class='hs-conid'>EnableCap</span><span class='hs-layout'>(</span><span class='hs-conid'>CapMinmax</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeStateVarMaybe</span> <span class='hs-layout'>)</span> <a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>BasicTypes</span> <span class='hs-layout'>(</span> <span class='hs-conid'>GLboolean</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLenum</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLint</span> <span class='hs-layout'>)</span> <a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>Extensions</span> <span class='hs-layout'>(</span> <a name="line-26"></a> <span class='hs-conid'>FunPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafePerformIO</span><span class='hs-layout'>,</span> <span class='hs-conid'>Invoker</span><span class='hs-layout'>,</span> <span class='hs-varid'>getProcAddress</span> <span class='hs-layout'>)</span> <a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PeekPoke</span> <span class='hs-layout'>(</span> <span class='hs-varid'>peek1</span> <span class='hs-layout'>)</span> <a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>ColorTable</span> <span class='hs-layout'>(</span> <a name="line-29"></a> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-layout'>)</span> <a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>Rasterization</span> <span class='hs-layout'>(</span> <a name="line-31"></a> <span class='hs-conid'>PixelData</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelData</span> <span class='hs-layout'>(</span> <span class='hs-varid'>withPixelData</span> <span class='hs-layout'>)</span> <a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>Texturing</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelInternalFormat</span> <span class='hs-layout'>(</span> <a name="line-34"></a> <span class='hs-varid'>marshalPixelInternalFormat'</span><span class='hs-layout'>,</span> <span class='hs-varid'>unmarshalPixelInternalFormat</span> <span class='hs-layout'>)</span> <a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>Histogram</span> <span class='hs-layout'>(</span> <a name="line-36"></a> <span class='hs-conid'>Reset</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Sink</span> <span class='hs-layout'>)</span> <a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>Reset</span> <span class='hs-layout'>(</span> <a name="line-38"></a> <span class='hs-varid'>marshalReset</span> <span class='hs-layout'>)</span> <a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>Sink</span> <span class='hs-layout'>(</span> <a name="line-40"></a> <span class='hs-varid'>marshalSink</span><span class='hs-layout'>,</span> <span class='hs-varid'>unmarshalSink</span> <span class='hs-layout'>)</span> <a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>StateVar</span> <span class='hs-layout'>(</span> <span class='hs-conid'>StateVar</span> <span class='hs-layout'>)</span> <a name="line-42"></a> <a name="line-43"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-44"></a> <a name="line-45"></a><span class='hs-cpp'>#include "HsOpenGLExt.h"</span> <a name="line-46"></a> <a name="line-47"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-48"></a> <a name="line-49"></a><a name="MinmaxTarget"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>MinmaxTarget</span> <span class='hs-keyglyph'>=</span> <a name="line-50"></a> <span class='hs-conid'>Minmax</span> <a name="line-51"></a> <a name="line-52"></a><a name="marshalMinmaxTarget"></a><span class='hs-definition'>marshalMinmaxTarget</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MinmaxTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-53"></a><span class='hs-definition'>marshalMinmaxTarget</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span> <a name="line-54"></a> <span class='hs-conid'>Minmax</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x802e</span> <a name="line-55"></a> <a name="line-56"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-57"></a> <a name="line-58"></a><a name="minmax"></a><span class='hs-definition'>minmax</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>PixelInternalFormat</span><span class='hs-layout'>,</span> <span class='hs-conid'>Sink</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-59"></a><span class='hs-definition'>minmax</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeStateVarMaybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>CapMinmax</span><span class='hs-layout'>)</span> <span class='hs-varid'>getMinmax'</span> <span class='hs-varid'>setMinmax</span> <a name="line-60"></a> <a name="line-61"></a><a name="getMinmax'"></a><span class='hs-definition'>getMinmax'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>PixelInternalFormat</span><span class='hs-layout'>,</span> <span class='hs-conid'>Sink</span><span class='hs-layout'>)</span> <a name="line-62"></a><span class='hs-definition'>getMinmax'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-63"></a> <span class='hs-varid'>f</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getMinmaxParameteri</span> <span class='hs-varid'>unmarshalPixelInternalFormat</span> <span class='hs-conid'>MinmaxFormat</span> <a name="line-64"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getMinmaxParameteri</span> <span class='hs-varid'>unmarshalSink</span> <span class='hs-conid'>MinmaxSink</span> <a name="line-65"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <a name="line-66"></a> <a name="line-67"></a><a name="setMinmax"></a><span class='hs-definition'>setMinmax</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>PixelInternalFormat</span><span class='hs-layout'>,</span> <span class='hs-conid'>Sink</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-68"></a><span class='hs-definition'>setMinmax</span> <span class='hs-layout'>(</span><span class='hs-varid'>int</span><span class='hs-layout'>,</span> <span class='hs-varid'>sink</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-69"></a> <span class='hs-varid'>glMinmax</span> <a name="line-70"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalMinmaxTarget</span> <span class='hs-conid'>Minmax</span><span class='hs-layout'>)</span> <a name="line-71"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <a name="line-72"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalSink</span> <span class='hs-varid'>sink</span><span class='hs-layout'>)</span> <a name="line-73"></a> <a name="line-74"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glMinmax</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLboolean</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-75"></a> <a name="line-76"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-77"></a> <a name="line-78"></a><a name="getMinmax"></a><span class='hs-definition'>getMinmax</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Reset</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-79"></a><span class='hs-definition'>getMinmax</span> <span class='hs-varid'>reset</span> <span class='hs-varid'>pd</span> <span class='hs-keyglyph'>=</span> <a name="line-80"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pd</span> <span class='hs-varop'>$</span> <a name="line-81"></a> <span class='hs-varid'>glGetMinmax</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalMinmaxTarget</span> <span class='hs-conid'>Minmax</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalReset</span> <span class='hs-varid'>reset</span><span class='hs-layout'>)</span> <a name="line-82"></a> <a name="line-83"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glGetMinmax</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLboolean</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-84"></a> <a name="line-85"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-86"></a> <a name="line-87"></a><a name="resetMinmax"></a><span class='hs-definition'>resetMinmax</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-88"></a><span class='hs-definition'>resetMinmax</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glResetMinmax</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalMinmaxTarget</span> <span class='hs-conid'>Minmax</span><span class='hs-layout'>)</span> <a name="line-89"></a> <a name="line-90"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glResetMinmax</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-91"></a> <a name="line-92"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-93"></a> <a name="line-94"></a><a name="GetMinmaxParameterPName"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>GetMinmaxParameterPName</span> <span class='hs-keyglyph'>=</span> <a name="line-95"></a> <span class='hs-conid'>MinmaxFormat</span> <a name="line-96"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>MinmaxSink</span> <a name="line-97"></a> <a name="line-98"></a><a name="marshalGetMinmaxParameterPName"></a><span class='hs-definition'>marshalGetMinmaxParameterPName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GetMinmaxParameterPName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-99"></a><span class='hs-definition'>marshalGetMinmaxParameterPName</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span> <a name="line-100"></a> <span class='hs-conid'>MinmaxFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x802f</span> <a name="line-101"></a> <span class='hs-conid'>MinmaxSink</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8030</span> <a name="line-102"></a> <a name="line-103"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-104"></a> <a name="line-105"></a><a name="getMinmaxParameteri"></a><span class='hs-definition'>getMinmaxParameteri</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetMinmaxParameterPName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <a name="line-106"></a><span class='hs-definition'>getMinmaxParameteri</span> <span class='hs-varid'>f</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <a name="line-107"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>buf</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-108"></a> <span class='hs-varid'>glGetMinmaxParameteriv</span> <a name="line-109"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalMinmaxTarget</span> <span class='hs-conid'>Minmax</span><span class='hs-layout'>)</span> <a name="line-110"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalGetMinmaxParameterPName</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <a name="line-111"></a> <span class='hs-varid'>buf</span> <a name="line-112"></a> <span class='hs-varid'>peek1</span> <span class='hs-varid'>f</span> <span class='hs-varid'>buf</span> <a name="line-113"></a> <a name="line-114"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glGetMinmaxParameteriv</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> </pre></body> </html>
