<?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/Clipping.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.Clipping</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 2.12 (Clipping) of the OpenGL 2.1 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'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>Clipping</span> <span class='hs-layout'>(</span> <a name="line-16"></a> <span class='hs-conid'>ClipPlaneName</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'>clipPlane</span><span class='hs-layout'>,</span> <span class='hs-varid'>maxClipPlanes</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'>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-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'>Utils</span> <span class='hs-layout'>(</span> <span class='hs-varid'>with</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> <span class='hs-varid'>castPtr</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'>BasicTypes</span> <span class='hs-layout'>(</span> <span class='hs-conid'>GLenum</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLsizei</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLdouble</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'>Capability</span> <span class='hs-layout'>(</span> <a name="line-24"></a> <span class='hs-conid'>EnableCap</span><span class='hs-layout'>(</span><span class='hs-conid'>CapClipPlane</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-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'>CoordTrans</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Plane</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <a name="line-26"></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-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'>QueryUtils</span> <span class='hs-layout'>(</span> <a name="line-28"></a> <span class='hs-conid'>GetPName</span><span class='hs-layout'>(</span><span class='hs-conid'>GetClipPlane</span><span class='hs-layout'>,</span><span class='hs-conid'>GetMaxClipPlanes</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-29"></a> <span class='hs-varid'>clipPlaneIndexToEnum</span><span class='hs-layout'>,</span> <span class='hs-varid'>getDoublev</span><span class='hs-layout'>,</span> <span class='hs-varid'>getSizei1</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'>StateVar</span> <span class='hs-layout'>(</span> <a name="line-31"></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> <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'>GLU</span><span class='hs-varop'>.</span><span class='hs-conid'>ErrorsInternal</span> <span class='hs-layout'>(</span> <span class='hs-varid'>recordInvalidEnum</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="ClipPlaneName"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>ClipPlaneName</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ClipPlaneName</span> <span class='hs-conid'>GLsizei</span> <a name="line-37"></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-38"></a> <a name="line-39"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-40"></a> <a name="line-41"></a><a name="clipPlane"></a><span class='hs-definition'>clipPlane</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ClipPlaneName</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'>Plane</span> <span class='hs-conid'>GLdouble</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-42"></a><span class='hs-definition'>clipPlane</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClipPlaneName</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-43"></a> <span class='hs-varid'>makeStateVarMaybe</span> <a name="line-44"></a> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CapClipPlane</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-45"></a> <span class='hs-layout'>(</span><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-46"></a> <span class='hs-varid'>getDoublev</span> <span class='hs-layout'>(</span><span class='hs-conid'>GetClipPlane</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span> <a name="line-47"></a> <span class='hs-varid'>peek1</span> <span class='hs-varid'>id</span> <span class='hs-layout'>(</span><span class='hs-varid'>buf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Plane</span> <span class='hs-conid'>GLdouble</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-48"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>plane</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>maybe</span> <span class='hs-varid'>recordInvalidEnum</span> <span class='hs-layout'>(</span><span class='hs-varid'>with</span> <span class='hs-varid'>plane</span> <span class='hs-varop'>.</span> <span class='hs-varid'>glClipPlane</span><span class='hs-layout'>)</span> <a name="line-49"></a> <span class='hs-layout'>(</span><span class='hs-varid'>clipPlaneIndexToEnum</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-50"></a> <a name="line-51"></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'>"glClipPlane"</span> <span class='hs-varid'>glClipPlane</span> <span class='hs-keyglyph'>::</span> <a name="line-52"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Plane</span> <span class='hs-conid'>GLdouble</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-53"></a> <a name="line-54"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-55"></a> <a name="line-56"></a><a name="maxClipPlanes"></a><span class='hs-definition'>maxClipPlanes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-57"></a><span class='hs-definition'>maxClipPlanes</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'>GetMaxClipPlanes</span><span class='hs-layout'>)</span> </pre></body> </html>
