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<title>Graphics/Rendering/OpenGL/GLU/Initialization.hs</title>
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<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.GLU.Initialization</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 chapter 2 (Initialization) of the GLU specs.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-14"></a>
<a name="line-15"></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'>GLU</span><span class='hs-varop'>.</span><span class='hs-conid'>Initialization</span> <span class='hs-layout'>(</span>
<a name="line-16"></a> <span class='hs-varid'>gluVersion</span><span class='hs-layout'>,</span> <span class='hs-varid'>gluExtensions</span>
<a name="line-17"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-18"></a>
<a name="line-19"></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> <span class='hs-varid'>castPtr</span> <span class='hs-layout'>)</span>
<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'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span> <span class='hs-layout'>(</span> <span class='hs-varid'>peekCString</span> <span class='hs-layout'>)</span>
<a name="line-21"></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'>GLenum</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLubyte</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'>QueryUtils</span> <span class='hs-layout'>(</span> <span class='hs-varid'>maybeNullPtr</span> <span class='hs-layout'>)</span>
<a name="line-23"></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-24"></a> <span class='hs-conid'>GettableStateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-layout'>)</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-27"></a>
<a name="line-28"></a><a name="gluVersion"></a><span class='hs-definition'>gluVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>String</span>
<a name="line-29"></a><span class='hs-definition'>gluVersion</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getString</span> <span class='hs-conid'>Version</span><span class='hs-layout'>)</span>
<a name="line-30"></a>
<a name="line-31"></a><a name="gluExtensions"></a><span class='hs-definition'>gluExtensions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-32"></a><span class='hs-definition'>gluExtensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>words</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getString</span> <span class='hs-conid'>Extensions</span><span class='hs-layout'>)</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-35"></a>
<a name="line-36"></a><a name="StringName"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>StringName</span> <span class='hs-keyglyph'>=</span>
<a name="line-37"></a> <span class='hs-conid'>Version</span>
<a name="line-38"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Extensions</span>
<a name="line-39"></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-40"></a>
<a name="line-41"></a><a name="marshalStringName"></a><span class='hs-definition'>marshalStringName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StringName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span>
<a name="line-42"></a><span class='hs-definition'>marshalStringName</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-43"></a> <span class='hs-conid'>Version</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x189c0</span>
<a name="line-44"></a> <span class='hs-conid'>Extensions</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x189c1</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-47"></a>
<a name="line-48"></a><a name="getString"></a><span class='hs-definition'>getString</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StringName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>String</span>
<a name="line-49"></a><span class='hs-definition'>getString</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gluGetString</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalStringName</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span>
<a name="line-50"></a> <span class='hs-varid'>maybeNullPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>peekCString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>castPtr</span><span class='hs-layout'>)</span>
<a name="line-51"></a>
<a name="line-52"></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'>"gluGetString"</span> <span class='hs-varid'>gluGetString</span> <span class='hs-keyglyph'>::</span>
<a name="line-53"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>GLubyte</span><span class='hs-layout'>)</span>
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