<?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/DisplayLists.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.DisplayLists</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 section 5.4 (Display Lists) of the OpenGL 2.1</span>
<a name="line-12"></a><span class='hs-comment'>-- 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'>DisplayLists</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-comment'>-- * Defining Display Lists</span>
<a name="line-18"></a> <span class='hs-conid'>DisplayList</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'>ListMode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>defineList</span><span class='hs-layout'>,</span> <span class='hs-varid'>defineNewList</span><span class='hs-layout'>,</span> <span class='hs-varid'>listIndex</span><span class='hs-layout'>,</span>
<a name="line-19"></a> <span class='hs-varid'>listMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>maxListNesting</span><span class='hs-layout'>,</span>
<a name="line-20"></a>
<a name="line-21"></a> <span class='hs-comment'>-- * Calling Display Lists</span>
<a name="line-22"></a> <span class='hs-varid'>callList</span><span class='hs-layout'>,</span> <span class='hs-varid'>callLists</span><span class='hs-layout'>,</span> <span class='hs-varid'>listBase</span><span class='hs-layout'>,</span>
<a name="line-23"></a>
<a name="line-24"></a> <span class='hs-comment'>-- * Deprecated Functions</span>
<a name="line-25"></a> <span class='hs-varid'>genLists</span><span class='hs-layout'>,</span> <span class='hs-varid'>deleteLists</span><span class='hs-layout'>,</span> <span class='hs-varid'>isList</span><span class='hs-layout'>,</span>
<a name="line-26"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-27"></a>
<a name="line-28"></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-29"></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>
<a name="line-30"></a> <span class='hs-conid'>GLboolean</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLuint</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLsizei</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLenum</span> <span class='hs-layout'>)</span>
<a name="line-31"></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'>BufferObjects</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ObjectName</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'>DataType</span> <span class='hs-layout'>(</span> <span class='hs-varid'>marshalDataType</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'>VertexArrays</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DataType</span> <span class='hs-layout'>)</span>
<a name="line-34"></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'>Exception</span> <span class='hs-layout'>(</span> <span class='hs-varid'>bracket_</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'>GLboolean</span> <span class='hs-layout'>(</span> <span class='hs-varid'>unmarshalGLboolean</span> <span class='hs-layout'>)</span>
<a name="line-36"></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'>QueryUtils</span> <span class='hs-layout'>(</span>
<a name="line-37"></a> <span class='hs-conid'>GetPName</span><span class='hs-layout'>(</span><span class='hs-conid'>GetListIndex</span><span class='hs-layout'>,</span><span class='hs-conid'>GetListMode</span><span class='hs-layout'>,</span><span class='hs-conid'>GetMaxListNesting</span><span class='hs-layout'>,</span><span class='hs-conid'>GetListBase</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-38"></a> <span class='hs-varid'>getEnum1</span><span class='hs-layout'>,</span> <span class='hs-varid'>getSizei1</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'>StateVar</span> <span class='hs-layout'>(</span>
<a name="line-40"></a> <span class='hs-conid'>GettableStateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeGettableStateVar</span><span class='hs-layout'>,</span> <span class='hs-conid'>StateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeStateVar</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'>GLU</span><span class='hs-varop'>.</span><span class='hs-conid'>ErrorsInternal</span> <span class='hs-layout'>(</span> <span class='hs-varid'>recordOutOfMemory</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><a name="DisplayList"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DisplayList</span> <span class='hs-conid'>GLuint</span>
<a name="line-46"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>)</span>
<a name="line-47"></a>
<a name="line-48"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ObjectName</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyword'>where</span>
<a name="line-49"></a> <span class='hs-varid'>genObjectNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>genLists_</span>
<a name="line-50"></a> <span class='hs-varid'>deleteObjectNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>deleteLists_</span>
<a name="line-51"></a> <span class='hs-varid'>isObjectName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isList_</span>
<a name="line-52"></a>
<a name="line-53"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-54"></a>
<a name="line-55"></a><a name="genLists"></a><span class='hs-comment'>{-# DEPRECATED genLists "use `genObjectNames' instead" #-}</span>
<a name="line-56"></a><span class='hs-definition'>genLists</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DisplayList</span><span class='hs-keyglyph'>]</span>
<a name="line-57"></a><span class='hs-definition'>genLists</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>genLists_</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span>
<a name="line-58"></a>
<a name="line-59"></a><a name="genLists_"></a><span class='hs-definition'>genLists_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DisplayList</span><span class='hs-keyglyph'>]</span>
<a name="line-60"></a><span class='hs-definition'>genLists_</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-61"></a> <span class='hs-varid'>first</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>glGenLists</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-62"></a> <span class='hs-keyword'>if</span> <span class='hs-conid'>DisplayList</span> <span class='hs-varid'>first</span> <span class='hs-varop'>==</span> <span class='hs-varid'>noDisplayList</span>
<a name="line-63"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>recordOutOfMemory</span>
<a name="line-64"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span>
<a name="line-65"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>DisplayList</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>first</span> <span class='hs-keyglyph'>..</span> <span class='hs-varid'>first</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>n</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span> <span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>]</span>
<a name="line-66"></a>
<a name="line-67"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glGenLists"</span> <span class='hs-varid'>glGenLists</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>GLuint</span>
<a name="line-68"></a>
<a name="line-69"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-70"></a>
<a name="line-71"></a><a name="deleteLists"></a><span class='hs-comment'>{-# DEPRECATED deleteLists "use `deleteObjectNames' instead" #-}</span>
<a name="line-72"></a><span class='hs-definition'>deleteLists</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DisplayList</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-73"></a><span class='hs-definition'>deleteLists</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>deleteLists_</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="deleteLists_"></a><span class='hs-definition'>deleteLists_</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DisplayList</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-76"></a><span class='hs-definition'>deleteLists_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapM_</span> <span class='hs-layout'>(</span><span class='hs-varid'>uncurry</span> <span class='hs-varid'>glDeleteLists</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>combineConsecutive</span>
<a name="line-77"></a>
<a name="line-78"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glDeleteLists"</span> <span class='hs-varid'>glDeleteLists</span> <span class='hs-keyglyph'>::</span>
<a name="line-79"></a> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="combineConsecutive"></a><span class='hs-definition'>combineConsecutive</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DisplayList</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DisplayList</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLsizei</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-82"></a><span class='hs-definition'>combineConsecutive</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-83"></a><span class='hs-definition'>combineConsecutive</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span><span class='hs-conop'>:</span><span class='hs-varid'>zs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span><span class='hs-layout'>,</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>combineConsecutive</span> <span class='hs-varid'>rest</span>
<a name="line-84"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>len</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>run</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLsizei</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span> <span class='hs-varid'>zs</span>
<a name="line-85"></a> <span class='hs-varid'>run</span> <span class='hs-varid'>n</span> <span class='hs-varid'>x</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span> <span class='hs-keyword'>of</span>
<a name="line-86"></a> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>xs</span> <span class='hs-keyword'>of</span>
<a name="line-87"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-88"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>ys</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`isFollowedBy`</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>run</span> <span class='hs-varid'>m</span> <span class='hs-varid'>y</span> <span class='hs-varid'>ys</span>
<a name="line-89"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-90"></a> <span class='hs-conid'>DisplayList</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`isFollowedBy`</span> <span class='hs-conid'>DisplayList</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>y</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="isList"></a><span class='hs-comment'>{-# DEPRECATED isList "use `isObjectName' instead" #-}</span>
<a name="line-95"></a><span class='hs-definition'>isList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-96"></a><span class='hs-definition'>isList</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isList_</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="isList_"></a><span class='hs-definition'>isList_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-99"></a><span class='hs-definition'>isList_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>unmarshalGLboolean</span> <span class='hs-varop'>.</span> <span class='hs-varid'>glIsList</span>
<a name="line-100"></a>
<a name="line-101"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glIsList"</span> <span class='hs-varid'>glIsList</span> <span class='hs-keyglyph'>::</span>
<a name="line-102"></a> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>GLboolean</span>
<a name="line-103"></a>
<a name="line-104"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-105"></a>
<a name="line-106"></a><a name="ListMode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ListMode</span> <span class='hs-keyglyph'>=</span>
<a name="line-107"></a> <span class='hs-conid'>Compile</span>
<a name="line-108"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>CompileAndExecute</span>
<a name="line-109"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>)</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="marshalListMode"></a><span class='hs-definition'>marshalListMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ListMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span>
<a name="line-112"></a><span class='hs-definition'>marshalListMode</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-113"></a> <span class='hs-conid'>Compile</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1300</span>
<a name="line-114"></a> <span class='hs-conid'>CompileAndExecute</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1301</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="unmarshalListMode"></a><span class='hs-definition'>unmarshalListMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ListMode</span>
<a name="line-117"></a><span class='hs-definition'>unmarshalListMode</span> <span class='hs-varid'>x</span>
<a name="line-118"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1300</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Compile</span>
<a name="line-119"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1301</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CompileAndExecute</span>
<a name="line-120"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"unmarshalListMode: illegal value "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-121"></a>
<a name="line-122"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-123"></a>
<a name="line-124"></a><a name="defineList"></a><span class='hs-definition'>defineList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ListMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-125"></a><span class='hs-definition'>defineList</span> <span class='hs-varid'>lst</span> <span class='hs-varid'>mode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bracket_</span> <span class='hs-layout'>(</span><span class='hs-varid'>glNewList</span> <span class='hs-varid'>lst</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalListMode</span> <span class='hs-varid'>mode</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>glEndList</span>
<a name="line-126"></a>
<a name="line-127"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glNewList"</span> <span class='hs-varid'>glNewList</span> <span class='hs-keyglyph'>::</span>
<a name="line-128"></a> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-129"></a>
<a name="line-130"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glEndList"</span> <span class='hs-varid'>glEndList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="defineNewList"></a><span class='hs-definition'>defineNewList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ListMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>DisplayList</span>
<a name="line-133"></a><span class='hs-definition'>defineNewList</span> <span class='hs-varid'>mode</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-134"></a> <span class='hs-varid'>lists</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>genLists</span> <span class='hs-num'>1</span>
<a name="line-135"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>lists</span>
<a name="line-136"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>recordOutOfMemory</span>
<a name="line-137"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>noDisplayList</span>
<a name="line-138"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>lst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varid'>lists</span>
<a name="line-139"></a> <span class='hs-varid'>defineList</span> <span class='hs-varid'>lst</span> <span class='hs-varid'>mode</span> <span class='hs-varid'>action</span>
<a name="line-140"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>lst</span>
<a name="line-141"></a>
<a name="line-142"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-143"></a>
<a name="line-144"></a><a name="listIndex"></a><span class='hs-definition'>listIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>DisplayList</span><span class='hs-layout'>)</span>
<a name="line-145"></a><span class='hs-definition'>listIndex</span> <span class='hs-keyglyph'>=</span>
<a name="line-146"></a> <span class='hs-varid'>makeGettableStateVar</span>
<a name="line-147"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getEnum1</span> <span class='hs-conid'>DisplayList</span> <span class='hs-conid'>GetListIndex</span>
<a name="line-148"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>l</span> <span class='hs-varop'>==</span> <span class='hs-varid'>noDisplayList</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-149"></a>
<a name="line-150"></a><a name="noDisplayList"></a><span class='hs-definition'>noDisplayList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DisplayList</span>
<a name="line-151"></a><span class='hs-definition'>noDisplayList</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DisplayList</span> <span class='hs-num'>0</span>
<a name="line-152"></a>
<a name="line-153"></a><a name="listMode"></a><span class='hs-definition'>listMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>ListMode</span>
<a name="line-154"></a><span class='hs-definition'>listMode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getEnum1</span> <span class='hs-varid'>unmarshalListMode</span> <span class='hs-conid'>GetListMode</span><span class='hs-layout'>)</span>
<a name="line-155"></a>
<a name="line-156"></a><a name="maxListNesting"></a><span class='hs-definition'>maxListNesting</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span>
<a name="line-157"></a><span class='hs-definition'>maxListNesting</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getSizei1</span> <span class='hs-varid'>id</span> <span class='hs-conid'>GetMaxListNesting</span><span class='hs-layout'>)</span>
<a name="line-158"></a>
<a name="line-159"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-160"></a>
<a name="line-161"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glCallList"</span> <span class='hs-varid'>callList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="callLists"></a><span class='hs-definition'>callLists</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DataType</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>
<a name="line-164"></a><span class='hs-definition'>callLists</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glCallLists</span> <span class='hs-varid'>n</span> <span class='hs-varop'>.</span> <span class='hs-varid'>marshalDataType</span>
<a name="line-165"></a>
<a name="line-166"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glCallLists"</span> <span class='hs-varid'>glCallLists</span> <span class='hs-keyglyph'>::</span>
<a name="line-167"></a> <span class='hs-conid'>GLsizei</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>
<a name="line-168"></a>
<a name="line-169"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-170"></a>
<a name="line-171"></a><a name="listBase"></a><span class='hs-definition'>listBase</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>DisplayList</span>
<a name="line-172"></a><span class='hs-definition'>listBase</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getEnum1</span> <span class='hs-conid'>DisplayList</span> <span class='hs-conid'>GetListBase</span><span class='hs-layout'>)</span> <span class='hs-varid'>glListBase</span>
<a name="line-173"></a>
<a name="line-174"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"glListBase"</span> <span class='hs-varid'>glListBase</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DisplayList</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
</pre></body>
</html>
