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<title>Graphics/Gloss/Internals/Interface/Backend.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- Import window managed backend specific modules. </span>
<a name="line-4"></a><span class='hs-comment'>-- We need to use #ifdef here because if the backend library hasn't been installed</span>
<a name="line-5"></a><span class='hs-comment'>-- then we won't be able to build it, so it can't be in the import list.</span>
<a name="line-6"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span>
<a name="line-7"></a> <span class='hs-layout'>(</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-8"></a><span class='hs-cpp'>#ifdef WITHGLFW</span>
<a name="line-9"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>GLFW</span>
<a name="line-10"></a><span class='hs-cpp'>#endif</span>
<a name="line-11"></a><span class='hs-cpp'>#ifdef WITHGLUT</span>
<a name="line-12"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>GLUT</span>
<a name="line-13"></a><span class='hs-cpp'>#endif</span>
<a name="line-14"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultBackendState</span><span class='hs-layout'>)</span>
<a name="line-15"></a><span class='hs-keyword'>where</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-cpp'>#ifdef WITHGLFW</span>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>GLFW</span>
<a name="line-21"></a><span class='hs-cpp'>#endif</span>
<a name="line-22"></a><span class='hs-cpp'>#ifdef WITHGLUT</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'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>GLUT</span>
<a name="line-24"></a><span class='hs-cpp'>#endif</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-cpp'>#ifdef WITHGLUT</span>
<a name="line-27"></a><a name="defaultBackendState"></a><span class='hs-definition'>defaultBackendState</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLUTState</span>
<a name="line-28"></a><span class='hs-cpp'>#elif WITHGLFW</span>
<a name="line-29"></a><span class='hs-definition'>defaultBackendState</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLFWState</span>
<a name="line-30"></a><span class='hs-cpp'>#else</span>
<a name="line-31"></a><span class='hs-cpp'>#error No default backend defined</span>
<a name="line-32"></a><span class='hs-cpp'>#endif</span>
<a name="line-33"></a><span class='hs-definition'>defaultBackendState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>initBackendState</span>
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