<?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/Fog.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.Fog</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 3.10 (Fog) 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'>Fog</span> <span class='hs-layout'>(</span> <a name="line-16"></a> <span class='hs-varid'>fog</span><span class='hs-layout'>,</span> <a name="line-17"></a> <span class='hs-conid'>FogMode</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'>fogMode</span><span class='hs-layout'>,</span> <a name="line-18"></a> <span class='hs-varid'>fogColor</span><span class='hs-layout'>,</span> <span class='hs-varid'>fogIndex</span><span class='hs-layout'>,</span> <a name="line-19"></a> <span class='hs-conid'>FogCoordSrc</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'>fogCoordSrc</span><span class='hs-layout'>,</span> <a name="line-20"></a> <span class='hs-conid'>FogDistanceMode</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'>fogDistanceMode</span> <a name="line-21"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-22"></a> <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'>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-24"></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> <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'>Capability</span> <span class='hs-layout'>(</span> <a name="line-26"></a> <span class='hs-conid'>EnableCap</span><span class='hs-layout'>(</span><span class='hs-conid'>CapFog</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeCapability</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'>BasicTypes</span> <span class='hs-layout'>(</span> <a name="line-28"></a> <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'>GLfloat</span><span class='hs-layout'>,</span> <span class='hs-conid'>Capability</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'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>QueryUtils</span> <span class='hs-layout'>(</span> <a name="line-30"></a> <span class='hs-conid'>GetPName</span><span class='hs-layout'>(</span><span class='hs-conid'>GetFogIndex</span><span class='hs-layout'>,</span><span class='hs-conid'>GetFogDensity</span><span class='hs-layout'>,</span><span class='hs-conid'>GetFogStart</span><span class='hs-layout'>,</span><span class='hs-conid'>GetFogEnd</span><span class='hs-layout'>,</span><span class='hs-conid'>GetFogMode</span><span class='hs-layout'>,</span> <a name="line-31"></a> <span class='hs-conid'>GetFogColor</span><span class='hs-layout'>,</span><span class='hs-conid'>GetFogCoordSrc</span><span class='hs-layout'>,</span><span class='hs-conid'>GetFogDistanceMode</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-32"></a> <span class='hs-varid'>getInteger1</span><span class='hs-layout'>,</span> <span class='hs-varid'>getFloat1</span><span class='hs-layout'>,</span> <span class='hs-varid'>getFloat4</span> <span class='hs-layout'>)</span> <a name="line-33"></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> <span class='hs-conid'>StateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>)</span> <a name="line-34"></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'>VertexSpec</span> <span class='hs-layout'>(</span> <a name="line-35"></a> <span class='hs-conid'>Color4</span><span class='hs-layout'>(</span><span class='hs-conid'>Color4</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Index1</span><span class='hs-layout'>(</span><span class='hs-conid'>Index1</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <a name="line-36"></a> <a name="line-37"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-38"></a> <a name="line-39"></a><a name="fog"></a><span class='hs-definition'>fog</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>Capability</span> <a name="line-40"></a><span class='hs-definition'>fog</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeCapability</span> <span class='hs-conid'>CapFog</span> <a name="line-41"></a> <a name="line-42"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-43"></a> <a name="line-44"></a><a name="FogParameter"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FogParameter</span> <span class='hs-keyglyph'>=</span> <a name="line-45"></a> <span class='hs-conid'>FogIndex</span> <a name="line-46"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogDensity</span> <a name="line-47"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogStart</span> <a name="line-48"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogEnd</span> <a name="line-49"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogMode</span> <a name="line-50"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogColor</span> <a name="line-51"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogCoordSrc</span> <a name="line-52"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FogDistanceMode</span> <a name="line-53"></a> <a name="line-54"></a><a name="marshalFogParameter"></a><span class='hs-definition'>marshalFogParameter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-55"></a><span class='hs-definition'>marshalFogParameter</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'>FogIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xb61</span> <a name="line-57"></a> <span class='hs-conid'>FogDensity</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xb62</span> <a name="line-58"></a> <span class='hs-conid'>FogStart</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xb63</span> <a name="line-59"></a> <span class='hs-conid'>FogEnd</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xb64</span> <a name="line-60"></a> <span class='hs-conid'>FogMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xb65</span> <a name="line-61"></a> <span class='hs-conid'>FogColor</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xb66</span> <a name="line-62"></a> <span class='hs-conid'>FogCoordSrc</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8450</span> <a name="line-63"></a> <span class='hs-conid'>FogDistanceMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x855a</span> <a name="line-64"></a> <a name="line-65"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-66"></a> <a name="line-67"></a><a name="FogMode'"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FogMode'</span> <span class='hs-keyglyph'>=</span> <a name="line-68"></a> <span class='hs-conid'>Linear'</span> <a name="line-69"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Exp'</span> <a name="line-70"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Exp2'</span> <a name="line-71"></a> <a name="line-72"></a><a name="marshalFogMode'"></a><span class='hs-definition'>marshalFogMode'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogMode'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span> <a name="line-73"></a><span class='hs-definition'>marshalFogMode'</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-74"></a> <span class='hs-conid'>Linear'</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x2601</span> <a name="line-75"></a> <span class='hs-conid'>Exp'</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x800</span> <a name="line-76"></a> <span class='hs-conid'>Exp2'</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x801</span> <a name="line-77"></a> <a name="line-78"></a><a name="unmarshalFogMode'"></a><span class='hs-definition'>unmarshalFogMode'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FogMode'</span> <a name="line-79"></a><span class='hs-definition'>unmarshalFogMode'</span> <span class='hs-varid'>x</span> <a name="line-80"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x2601</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Linear'</span> <a name="line-81"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x800</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Exp'</span> <a name="line-82"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x801</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Exp2'</span> <a name="line-83"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"unmarshalFogMode': illegal value "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <a name="line-84"></a> <a name="line-85"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-86"></a> <a name="line-87"></a><a name="FogMode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FogMode</span> <span class='hs-keyglyph'>=</span> <a name="line-88"></a> <span class='hs-conid'>Linear</span> <span class='hs-conid'>GLfloat</span> <span class='hs-conid'>GLfloat</span> <a name="line-89"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Exp</span> <span class='hs-conid'>GLfloat</span> <a name="line-90"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Exp2</span> <span class='hs-conid'>GLfloat</span> <a name="line-91"></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-92"></a> <a name="line-93"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-94"></a> <a name="line-95"></a><a name="fogMode"></a><span class='hs-definition'>fogMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>FogMode</span> <a name="line-96"></a><span class='hs-definition'>fogMode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeStateVar</span> <span class='hs-varid'>getFogMode</span> <span class='hs-varid'>setFogMode</span> <a name="line-97"></a> <a name="line-98"></a><a name="getFogMode"></a><span class='hs-definition'>getFogMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>FogMode</span> <a name="line-99"></a><span class='hs-definition'>getFogMode</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-100"></a> <span class='hs-varid'>mode</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getInteger1</span> <span class='hs-varid'>unmarshalFogMode'</span> <span class='hs-conid'>GetFogMode</span> <a name="line-101"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mode</span> <span class='hs-keyword'>of</span> <a name="line-102"></a> <span class='hs-conid'>Linear'</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-103"></a> <span class='hs-varid'>start</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getFloat1</span> <span class='hs-varid'>id</span> <span class='hs-conid'>GetFogStart</span> <a name="line-104"></a> <span class='hs-varid'>end</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getFloat1</span> <span class='hs-varid'>id</span> <span class='hs-conid'>GetFogEnd</span> <a name="line-105"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Linear</span> <span class='hs-varid'>start</span> <span class='hs-varid'>end</span> <a name="line-106"></a> <span class='hs-conid'>Exp'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>getFloat1</span> <span class='hs-conid'>Exp</span> <span class='hs-conid'>GetFogDensity</span> <a name="line-107"></a> <span class='hs-conid'>Exp2'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>getFloat1</span> <span class='hs-conid'>Exp2</span> <span class='hs-conid'>GetFogDensity</span> <a name="line-108"></a> <a name="line-109"></a><a name="setFogMode"></a><span class='hs-definition'>setFogMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-110"></a><span class='hs-definition'>setFogMode</span> <span class='hs-layout'>(</span><span class='hs-conid'>Linear</span> <span class='hs-varid'>start</span> <span class='hs-varid'>end</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-111"></a> <span class='hs-varid'>fogi</span> <span class='hs-conid'>FogMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalFogMode'</span> <span class='hs-conid'>Linear'</span><span class='hs-layout'>)</span> <a name="line-112"></a> <span class='hs-varid'>fogf</span> <span class='hs-conid'>FogStart</span> <span class='hs-varid'>start</span> <a name="line-113"></a> <span class='hs-varid'>fogf</span> <span class='hs-conid'>FogEnd</span> <span class='hs-varid'>end</span> <a name="line-114"></a><span class='hs-definition'>setFogMode</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exp</span> <span class='hs-varid'>density</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-115"></a> <span class='hs-varid'>fogi</span> <span class='hs-conid'>FogMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalFogMode'</span> <span class='hs-conid'>Exp'</span><span class='hs-layout'>)</span> <a name="line-116"></a> <span class='hs-varid'>fogf</span> <span class='hs-conid'>FogDensity</span> <span class='hs-varid'>density</span> <a name="line-117"></a><span class='hs-definition'>setFogMode</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exp2</span> <span class='hs-varid'>density</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-118"></a> <span class='hs-varid'>fogi</span> <span class='hs-conid'>FogMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalFogMode'</span> <span class='hs-conid'>Exp2'</span><span class='hs-layout'>)</span> <a name="line-119"></a> <span class='hs-varid'>fogf</span> <span class='hs-conid'>FogDensity</span> <span class='hs-varid'>density</span> <a name="line-120"></a> <a name="line-121"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-122"></a> <a name="line-123"></a><a name="fogi"></a><span class='hs-definition'>fogi</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-124"></a><span class='hs-definition'>fogi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glFogi</span> <span class='hs-varop'>.</span> <span class='hs-varid'>marshalFogParameter</span> <a name="line-125"></a> <a name="line-126"></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'>"glFogi"</span> <span class='hs-varid'>glFogi</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-127"></a> <a name="line-128"></a><a name="fogf"></a><span class='hs-definition'>fogf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLfloat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-129"></a><span class='hs-definition'>fogf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glFogf</span> <span class='hs-varop'>.</span> <span class='hs-varid'>marshalFogParameter</span> <a name="line-130"></a> <a name="line-131"></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'>"glFogf"</span> <span class='hs-varid'>glFogf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLfloat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-132"></a> <a name="line-133"></a><a name="fogfv"></a><span class='hs-definition'>fogfv</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Color4</span> <span class='hs-conid'>GLfloat</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-134"></a><span class='hs-definition'>fogfv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glFogfv</span> <span class='hs-varop'>.</span> <span class='hs-varid'>marshalFogParameter</span> <a name="line-135"></a> <a name="line-136"></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'>"glFogfv"</span> <span class='hs-varid'>glFogfv</span> <span class='hs-keyglyph'>::</span> <a name="line-137"></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'>Color4</span> <span class='hs-conid'>GLfloat</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-138"></a> <a name="line-139"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-140"></a> <a name="line-141"></a><a name="fogColor"></a><span class='hs-definition'>fogColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-layout'>(</span><span class='hs-conid'>Color4</span> <span class='hs-conid'>GLfloat</span><span class='hs-layout'>)</span> <a name="line-142"></a><span class='hs-definition'>fogColor</span> <span class='hs-keyglyph'>=</span> <a name="line-143"></a> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getFloat4</span> <span class='hs-conid'>Color4</span> <span class='hs-conid'>GetFogColor</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>with</span> <span class='hs-varid'>c</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fogfv</span> <span class='hs-conid'>FogColor</span><span class='hs-layout'>)</span> <a name="line-144"></a> <a name="line-145"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-146"></a> <a name="line-147"></a><a name="fogIndex"></a><span class='hs-definition'>fogIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-layout'>(</span><span class='hs-conid'>Index1</span> <span class='hs-conid'>GLint</span><span class='hs-layout'>)</span> <a name="line-148"></a><span class='hs-definition'>fogIndex</span> <span class='hs-keyglyph'>=</span> <a name="line-149"></a> <span class='hs-varid'>makeStateVar</span> <a name="line-150"></a> <span class='hs-layout'>(</span><span class='hs-varid'>getInteger1</span> <span class='hs-conid'>Index1</span> <span class='hs-conid'>GetFogIndex</span><span class='hs-layout'>)</span> <a name="line-151"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Index1</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fogi</span> <span class='hs-conid'>FogIndex</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <a name="line-152"></a> <a name="line-153"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-154"></a> <a name="line-155"></a><a name="FogCoordSrc"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FogCoordSrc</span> <span class='hs-keyglyph'>=</span> <a name="line-156"></a> <span class='hs-conid'>FogCoord</span> <a name="line-157"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FragmentDepth</span> <a name="line-158"></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-159"></a> <a name="line-160"></a><a name="marshalFogCoordSrc"></a><span class='hs-definition'>marshalFogCoordSrc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogCoordSrc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span> <a name="line-161"></a><span class='hs-definition'>marshalFogCoordSrc</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-162"></a> <span class='hs-conid'>FogCoord</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8451</span> <a name="line-163"></a> <span class='hs-conid'>FragmentDepth</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8452</span> <a name="line-164"></a> <a name="line-165"></a><a name="unmarshalFogCoordSrc"></a><span class='hs-definition'>unmarshalFogCoordSrc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FogCoordSrc</span> <a name="line-166"></a><span class='hs-definition'>unmarshalFogCoordSrc</span> <span class='hs-varid'>x</span> <a name="line-167"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x8451</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FogCoord</span> <a name="line-168"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x8452</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FragmentDepth</span> <a name="line-169"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"unmarshalFogCoordSrc: illegal value "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <a name="line-170"></a> <a name="line-171"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-172"></a> <a name="line-173"></a><a name="fogCoordSrc"></a><span class='hs-definition'>fogCoordSrc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>FogCoordSrc</span> <a name="line-174"></a><span class='hs-definition'>fogCoordSrc</span> <span class='hs-keyglyph'>=</span> <a name="line-175"></a> <span class='hs-varid'>makeStateVar</span> <a name="line-176"></a> <span class='hs-layout'>(</span><span class='hs-varid'>getInteger1</span> <span class='hs-varid'>unmarshalFogCoordSrc</span> <span class='hs-conid'>GetFogCoordSrc</span><span class='hs-layout'>)</span> <a name="line-177"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fogi</span> <span class='hs-conid'>FogCoordSrc</span> <span class='hs-varop'>.</span> <span class='hs-varid'>marshalFogCoordSrc</span><span class='hs-layout'>)</span> <a name="line-178"></a> <a name="line-179"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-180"></a> <a name="line-181"></a><a name="FogDistanceMode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FogDistanceMode</span> <span class='hs-keyglyph'>=</span> <a name="line-182"></a> <span class='hs-conid'>EyeRadial</span> <a name="line-183"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>EyePlaneSigned</span> <a name="line-184"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>EyePlaneAbsolute</span> <a name="line-185"></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-186"></a> <a name="line-187"></a><a name="marshalFogDistanceMode"></a><span class='hs-definition'>marshalFogDistanceMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FogDistanceMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span> <a name="line-188"></a><span class='hs-definition'>marshalFogDistanceMode</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-189"></a> <span class='hs-conid'>EyeRadial</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x855b</span> <a name="line-190"></a> <span class='hs-conid'>EyePlaneSigned</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x2502</span> <a name="line-191"></a> <span class='hs-conid'>EyePlaneAbsolute</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x855c</span> <a name="line-192"></a> <a name="line-193"></a><a name="unmarshalFogDistanceMode"></a><span class='hs-definition'>unmarshalFogDistanceMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FogDistanceMode</span> <a name="line-194"></a><span class='hs-definition'>unmarshalFogDistanceMode</span> <span class='hs-varid'>x</span> <a name="line-195"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span><span class='hs-varop'>==</span> <span class='hs-num'>0x855b</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EyeRadial</span> <a name="line-196"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x2502</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EyePlaneSigned</span> <a name="line-197"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x855c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EyePlaneAbsolute</span> <a name="line-198"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"unmarshalFogDistanceMode: illegal value "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</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><a name="fogDistanceMode"></a><span class='hs-definition'>fogDistanceMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>FogDistanceMode</span> <a name="line-203"></a><span class='hs-definition'>fogDistanceMode</span> <span class='hs-keyglyph'>=</span> <a name="line-204"></a> <span class='hs-varid'>makeStateVar</span> <a name="line-205"></a> <span class='hs-layout'>(</span><span class='hs-varid'>getInteger1</span> <span class='hs-varid'>unmarshalFogDistanceMode</span> <span class='hs-conid'>GetFogDistanceMode</span><span class='hs-layout'>)</span> <a name="line-206"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fogi</span> <span class='hs-conid'>FogDistanceMode</span> <span class='hs-varop'>.</span> <span class='hs-varid'>marshalFogDistanceMode</span><span class='hs-layout'>)</span> </pre></body> </html>
