<?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/GLU/Quadrics.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.GLU.Quadrics</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 6 (Quadrics) 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'>Quadrics</span> <span class='hs-layout'>(</span> <a name="line-16"></a> <span class='hs-conid'>QuadricNormal</span><span class='hs-layout'>,</span> <span class='hs-conid'>QuadricTexture</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'>QuadricOrientation</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-17"></a> <span class='hs-conid'>QuadricDrawStyle</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'>QuadricStyle</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-18"></a> <span class='hs-conid'>Radius</span><span class='hs-layout'>,</span> <span class='hs-conid'>Height</span><span class='hs-layout'>,</span> <span class='hs-conid'>Angle</span><span class='hs-layout'>,</span> <span class='hs-conid'>Slices</span><span class='hs-layout'>,</span> <span class='hs-conid'>Stacks</span><span class='hs-layout'>,</span> <span class='hs-conid'>Loops</span><span class='hs-layout'>,</span> <span class='hs-conid'>QuadricPrimitive</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-19"></a> <span class='hs-varid'>renderQuadric</span> <a name="line-20"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-21"></a> <a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>)</span> <a name="line-23"></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'>nullPtr</span><span class='hs-layout'>,</span> <span class='hs-conid'>FunPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>freeHaskellFunPtr</span> <span class='hs-layout'>)</span> <a name="line-24"></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-25"></a> <span class='hs-conid'>GLboolean</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLenum</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLint</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLdouble</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'>Colors</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ShadingModel</span><span class='hs-layout'>(</span><span class='hs-conid'>Smooth</span><span class='hs-layout'>,</span><span class='hs-conid'>Flat</span><span class='hs-layout'>)</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'>Exception</span> <span class='hs-layout'>(</span> <span class='hs-varid'>bracket</span> <span class='hs-layout'>)</span> <a name="line-28"></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'>marshalGLboolean</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'>GLU</span><span class='hs-varop'>.</span><span class='hs-conid'>ErrorsInternal</span> <span class='hs-layout'>(</span> <a name="line-30"></a> <span class='hs-varid'>recordErrorCode</span><span class='hs-layout'>,</span> <span class='hs-varid'>recordOutOfMemory</span> <span class='hs-layout'>)</span> <a name="line-31"></a> <a name="line-32"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-33"></a> <a name="line-34"></a><a name="QuadricDrawStyle"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>QuadricDrawStyle</span> <span class='hs-keyglyph'>=</span> <a name="line-35"></a> <span class='hs-conid'>PointStyle</span> <a name="line-36"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>LineStyle</span> <a name="line-37"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FillStyle</span> <a name="line-38"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SilhouetteStyle</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="marshalQuadricDrawStyle"></a><span class='hs-definition'>marshalQuadricDrawStyle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricDrawStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-42"></a><span class='hs-definition'>marshalQuadricDrawStyle</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'>PointStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x186aa</span> <a name="line-44"></a> <span class='hs-conid'>LineStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x186ab</span> <a name="line-45"></a> <span class='hs-conid'>FillStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x186ac</span> <a name="line-46"></a> <span class='hs-conid'>SilhouetteStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x186ad</span> <a name="line-47"></a> <a name="line-48"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-49"></a> <a name="line-50"></a><a name="QuadricCallback"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>QuadricCallback</span> <span class='hs-keyglyph'>=</span> <a name="line-51"></a> <span class='hs-conid'>Error'2</span> <a name="line-52"></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-53"></a> <a name="line-54"></a><a name="marshalQuadricCallback"></a><span class='hs-definition'>marshalQuadricCallback</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricCallback</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-55"></a><span class='hs-definition'>marshalQuadricCallback</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-56"></a> <span class='hs-conid'>Error'2</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x18707</span> <a name="line-57"></a> <a name="line-58"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-59"></a> <a name="line-60"></a><a name="QuadricNormal"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>QuadricNormal</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>ShadingModel</span> <a name="line-61"></a> <a name="line-62"></a><a name="marshalQuadricNormal"></a><span class='hs-definition'>marshalQuadricNormal</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricNormal</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-63"></a><span class='hs-definition'>marshalQuadricNormal</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-conid'>Smooth</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0x186a0</span> <a name="line-64"></a><span class='hs-definition'>marshalQuadricNormal</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-conid'>Flat</span> <span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0x186a1</span> <a name="line-65"></a><span class='hs-definition'>marshalQuadricNormal</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0x186a2</span> <a name="line-66"></a> <a name="line-67"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-68"></a> <a name="line-69"></a><a name="QuadricOrientation"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>QuadricOrientation</span> <span class='hs-keyglyph'>=</span> <a name="line-70"></a> <span class='hs-conid'>Outside</span> <a name="line-71"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Inside</span> <a name="line-72"></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-73"></a> <a name="line-74"></a><a name="marshalQuadricOrientation"></a><span class='hs-definition'>marshalQuadricOrientation</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricOrientation</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-75"></a><span class='hs-definition'>marshalQuadricOrientation</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-76"></a> <span class='hs-conid'>Outside</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x186b4</span> <a name="line-77"></a> <span class='hs-conid'>Inside</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x186b5</span> <a name="line-78"></a> <a name="line-79"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-80"></a> <a name="line-81"></a><a name="QuadricTexture"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>QuadricTexture</span> <a name="line-82"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NoTextureCoordinates</span> <a name="line-83"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>GenerateTextureCoordinates</span> <a name="line-84"></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> <a name="line-85"></a> <a name="line-86"></a><a name="marshalQuadricTexture"></a><span class='hs-definition'>marshalQuadricTexture</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricTexture</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLboolean</span> <a name="line-87"></a><span class='hs-definition'>marshalQuadricTexture</span> <span class='hs-conid'>NoTextureCoordinates</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>marshalGLboolean</span> <span class='hs-conid'>False</span> <a name="line-88"></a><span class='hs-definition'>marshalQuadricTexture</span> <span class='hs-conid'>GenerateTextureCoordinates</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>marshalGLboolean</span> <span class='hs-conid'>True</span> <a name="line-89"></a> <a name="line-90"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-91"></a> <a name="line-92"></a><a name="QuadricStyle"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>QuadricStyle</span> <a name="line-93"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>QuadricStyle</span> <span class='hs-conid'>QuadricNormal</span> <a name="line-94"></a> <span class='hs-conid'>QuadricTexture</span> <a name="line-95"></a> <span class='hs-conid'>QuadricOrientation</span> <a name="line-96"></a> <span class='hs-conid'>QuadricDrawStyle</span> <a name="line-97"></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> <a name="line-98"></a> <a name="line-99"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-100"></a> <a name="line-101"></a><a name="Radius"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLdouble</span> <a name="line-102"></a><a name="Height"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Height</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLdouble</span> <a name="line-103"></a><a name="Angle"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Angle</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLdouble</span> <a name="line-104"></a><a name="Slices"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Slices</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLint</span> <a name="line-105"></a><a name="Stacks"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Stacks</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLint</span> <a name="line-106"></a><a name="Loops"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Loops</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLint</span> <a name="line-107"></a> <a name="line-108"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-109"></a> <a name="line-110"></a><a name="QuadricPrimitive"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>QuadricPrimitive</span> <a name="line-111"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Sphere</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Slices</span> <span class='hs-conid'>Stacks</span> <a name="line-112"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Cylinder</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Height</span> <span class='hs-conid'>Slices</span> <span class='hs-conid'>Stacks</span> <a name="line-113"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Disk</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Slices</span> <span class='hs-conid'>Loops</span> <a name="line-114"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PartialDisk</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Radius</span> <span class='hs-conid'>Slices</span> <span class='hs-conid'>Loops</span> <span class='hs-conid'>Angle</span> <span class='hs-conid'>Angle</span> <a name="line-115"></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> <a name="line-116"></a> <a name="line-117"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-118"></a> <a name="line-119"></a><a name="renderQuadric"></a><span class='hs-definition'>renderQuadric</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QuadricPrimitive</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-120"></a><span class='hs-definition'>renderQuadric</span> <span class='hs-varid'>style</span> <span class='hs-varid'>prim</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-121"></a> <span class='hs-varid'>withQuadricObj</span> <span class='hs-varid'>recordOutOfMemory</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>quadricObj</span> <span class='hs-keyglyph'>-></span> <a name="line-122"></a> <span class='hs-varid'>withErrorCallback</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>recordErrorCode</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span> <a name="line-123"></a> <span class='hs-varid'>setStyle</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>style</span> <a name="line-124"></a> <span class='hs-varid'>renderPrimitive</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>prim</span> <a name="line-125"></a> <a name="line-126"></a><a name="withQuadricObj"></a><span class='hs-definition'>withQuadricObj</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-layout'>(</span><span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <a name="line-127"></a><span class='hs-definition'>withQuadricObj</span> <span class='hs-varid'>failure</span> <span class='hs-varid'>success</span> <span class='hs-keyglyph'>=</span> <a name="line-128"></a> <span class='hs-varid'>bracket</span> <span class='hs-varid'>gluNewQuadric</span> <span class='hs-varid'>safeDeleteQuadric</span> <a name="line-129"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>quadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>isNullQuadricObj</span> <span class='hs-varid'>quadricObj</span> <a name="line-130"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>failure</span> <a name="line-131"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>success</span> <span class='hs-varid'>quadricObj</span><span class='hs-layout'>)</span> <a name="line-132"></a> <a name="line-133"></a><a name="withErrorCallback"></a><span class='hs-definition'>withErrorCallback</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QuadricCallback'</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-134"></a><span class='hs-definition'>withErrorCallback</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>callback</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <a name="line-135"></a> <span class='hs-varid'>bracket</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeQuadricCallback</span> <span class='hs-varid'>callback</span><span class='hs-layout'>)</span> <span class='hs-varid'>freeHaskellFunPtr</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>callbackPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-136"></a> <span class='hs-varid'>gluQuadricCallback</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalQuadricCallback</span> <span class='hs-conid'>Error'2</span><span class='hs-layout'>)</span> <span class='hs-varid'>callbackPtr</span> <a name="line-137"></a> <span class='hs-varid'>action</span> <a name="line-138"></a> <a name="line-139"></a><a name="setStyle"></a><span class='hs-definition'>setStyle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QuadricStyle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-140"></a><span class='hs-definition'>setStyle</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-conid'>QuadricStyle</span> <span class='hs-varid'>n</span> <span class='hs-varid'>t</span> <span class='hs-varid'>o</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-141"></a> <span class='hs-varid'>gluQuadricNormals</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalQuadricNormal</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <a name="line-142"></a> <span class='hs-varid'>gluQuadricTexture</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalQuadricTexture</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <a name="line-143"></a> <span class='hs-varid'>gluQuadricOrientation</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalQuadricOrientation</span> <span class='hs-varid'>o</span><span class='hs-layout'>)</span> <a name="line-144"></a> <span class='hs-varid'>gluQuadricDrawStyle</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalQuadricDrawStyle</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <a name="line-145"></a> <a name="line-146"></a><a name="renderPrimitive"></a><span class='hs-definition'>renderPrimitive</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QuadricPrimitive</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-147"></a><span class='hs-definition'>renderPrimitive</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sphere</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-148"></a> <span class='hs-varid'>gluSphere</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-varid'>n</span> <a name="line-149"></a><span class='hs-definition'>renderPrimitive</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-conid'>Cylinder</span> <span class='hs-varid'>b</span> <span class='hs-varid'>t</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-150"></a> <span class='hs-varid'>gluCylinder</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>b</span> <span class='hs-varid'>t</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span> <span class='hs-varid'>n</span> <a name="line-151"></a><span class='hs-definition'>renderPrimitive</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-conid'>Disk</span> <span class='hs-varid'>i</span> <span class='hs-varid'>o</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-152"></a> <span class='hs-varid'>gluDisk</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>i</span> <span class='hs-varid'>o</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l</span> <a name="line-153"></a><span class='hs-definition'>renderPrimitive</span> <span class='hs-varid'>quadricObj</span> <span class='hs-layout'>(</span><span class='hs-conid'>PartialDisk</span> <span class='hs-varid'>i</span> <span class='hs-varid'>o</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-154"></a> <span class='hs-varid'>gluPartialDisk</span> <span class='hs-varid'>quadricObj</span> <span class='hs-varid'>i</span> <span class='hs-varid'>o</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>w</span> <a name="line-155"></a> <a name="line-156"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-157"></a> <a name="line-158"></a><a name="QuadricObj"></a><span class='hs-comment'>-- 'Char' is a fake here, any marshalable type would do</span> <a name="line-159"></a><a name="QuadricObj"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</span> <a name="line-160"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Eq</span> <span class='hs-layout'>)</span> <a name="line-161"></a> <a name="line-162"></a><a name="isNullQuadricObj"></a><span class='hs-definition'>isNullQuadricObj</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <a name="line-163"></a><span class='hs-definition'>isNullQuadricObj</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>QuadricObj</span> <span class='hs-varid'>nullPtr</span> <span class='hs-varop'>==</span><span class='hs-layout'>)</span> <a name="line-164"></a> <a name="line-165"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-166"></a> <a name="line-167"></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'>"gluNewQuadric"</span> <span class='hs-varid'>gluNewQuadric</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>QuadricObj</span> <a name="line-168"></a> <a name="line-169"></a><a name="safeDeleteQuadric"></a><span class='hs-definition'>safeDeleteQuadric</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-170"></a><span class='hs-definition'>safeDeleteQuadric</span> <span class='hs-varid'>quadricObj</span> <span class='hs-keyglyph'>=</span> <a name="line-171"></a> <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNullQuadricObj</span> <span class='hs-varid'>quadricObj</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>gluDeleteQuadric</span> <span class='hs-varid'>quadricObj</span> <a name="line-172"></a> <a name="line-173"></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'>"gluDeleteQuadric"</span> <span class='hs-varid'>gluDeleteQuadric</span> <span class='hs-keyglyph'>::</span> <a name="line-174"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-175"></a> <a name="line-176"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-177"></a> <a name="line-178"></a><a name="QuadricCallback'"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>QuadricCallback'</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-179"></a> <a name="line-180"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-str'>"wrapper"</span> <span class='hs-varid'>makeQuadricCallback</span> <span class='hs-keyglyph'>::</span> <a name="line-181"></a> <span class='hs-conid'>QuadricCallback'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunPtr</span> <span class='hs-conid'>QuadricCallback'</span><span class='hs-layout'>)</span> <a name="line-182"></a> <a name="line-183"></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'>"gluQuadricCallback"</span> <span class='hs-varid'>gluQuadricCallback</span> <span class='hs-keyglyph'>::</span> <a name="line-184"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FunPtr</span> <span class='hs-conid'>QuadricCallback'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-185"></a> <a name="line-186"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-187"></a> <a name="line-188"></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'>"gluQuadricNormals"</span> <span class='hs-varid'>gluQuadricNormals</span> <span class='hs-keyglyph'>::</span> <a name="line-189"></a> <span class='hs-conid'>QuadricObj</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-190"></a> <a name="line-191"></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'>"gluQuadricTexture"</span> <span class='hs-varid'>gluQuadricTexture</span> <span class='hs-keyglyph'>::</span> <a name="line-192"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLboolean</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-193"></a> <a name="line-194"></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'>"gluQuadricOrientation"</span> <span class='hs-varid'>gluQuadricOrientation</span> <span class='hs-keyglyph'>::</span> <a name="line-195"></a> <span class='hs-conid'>QuadricObj</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-196"></a> <a name="line-197"></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'>"gluQuadricDrawStyle"</span> <span class='hs-varid'>gluQuadricDrawStyle</span> <span class='hs-keyglyph'>::</span> <a name="line-198"></a> <span class='hs-conid'>QuadricObj</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-199"></a> <a name="line-200"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-201"></a> <a name="line-202"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gluSphere"</span> <span class='hs-varid'>gluSphere</span> <span class='hs-keyglyph'>::</span> <a name="line-203"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Slices</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stacks</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-204"></a> <a name="line-205"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gluCylinder"</span> <span class='hs-varid'>gluCylinder</span> <span class='hs-keyglyph'>::</span> <a name="line-206"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Height</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Slices</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stacks</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-207"></a> <a name="line-208"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gluDisk"</span> <span class='hs-varid'>gluDisk</span> <span class='hs-keyglyph'>::</span> <a name="line-209"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Slices</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Loops</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-210"></a> <a name="line-211"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-conid'>CALLCONV</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gluPartialDisk"</span> <span class='hs-varid'>gluPartialDisk</span> <span class='hs-keyglyph'>::</span> <a name="line-212"></a> <span class='hs-conid'>QuadricObj</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Radius</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Slices</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Loops</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Angle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Angle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> </pre></body> </html>
