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<title>Graphics/Rendering/OpenGL/GL/PixelRectangles/Sink.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-- #hide</span>
<a name="line-2"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : Graphics.Rendering.OpenGL.GL.PixelRectangles.Sink</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Sven Panne 2002-2009</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD-style (see the file libraries/OpenGL/LICENSE)</span>
<a name="line-7"></a><span class='hs-comment'>-- </span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : sven.panne@aedion.de</span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : stable</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- This is a purely internal module for (un-)marshaling Sink.</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'>Sink</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-conid'>Sink</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'>marshalSink</span><span class='hs-layout'>,</span> <span class='hs-varid'>unmarshalSink</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'>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'>GLint</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'>GLboolean</span> <span class='hs-layout'>(</span>
<a name="line-22"></a> <span class='hs-varid'>marshalGLboolean</span><span class='hs-layout'>,</span> <span class='hs-varid'>unmarshalGLboolean</span> <span class='hs-layout'>)</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-25"></a>
<a name="line-26"></a><a name="Sink"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Sink</span> <span class='hs-keyglyph'>=</span>
<a name="line-27"></a> <span class='hs-conid'>PassThrough</span>
<a name="line-28"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Sink</span>
<a name="line-29"></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-30"></a>
<a name="line-31"></a><a name="marshalSink"></a><span class='hs-definition'>marshalSink</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Sink</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLboolean</span>
<a name="line-32"></a><span class='hs-definition'>marshalSink</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>marshalGLboolean</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Sink</span><span class='hs-layout'>)</span>
<a name="line-33"></a>
<a name="line-34"></a><a name="unmarshalSink"></a><span class='hs-definition'>unmarshalSink</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sink</span>
<a name="line-35"></a><span class='hs-definition'>unmarshalSink</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>unmarshalGLboolean</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Sink</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>PassThrough</span>
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