<?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/PixelRectangles/PixelMap.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.PixelRectangles.PixelMap</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 a part of section 3.6.1 (Pixel Storage Modes) of</span> <a name="line-12"></a><span class='hs-comment'>-- the OpenGL 2.1 specs.</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'>PixelMap</span> <span class='hs-layout'>(</span> <a name="line-17"></a> <span class='hs-conid'>PixelMapTarget</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'>PixelMapComponent</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMap</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'>GLpixelmap</span><span class='hs-layout'>,</span> <a name="line-18"></a> <span class='hs-varid'>maxPixelMapTable</span><span class='hs-layout'>,</span> <span class='hs-varid'>pixelMap</span><span class='hs-layout'>,</span> <span class='hs-varid'>pixelMapIToRGBA</span><span class='hs-layout'>,</span> <span class='hs-varid'>pixelMapRGBAToRGBA</span><span class='hs-layout'>,</span> <a name="line-19"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-20"></a> <a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>zipWith4</span> <span class='hs-layout'>)</span> <a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</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'>ForeignPtr</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ForeignPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>mallocForeignPtrArray</span><span class='hs-layout'>,</span> <span class='hs-varid'>withForeignPtr</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'>Marshal</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span> <span class='hs-varid'>allocaArray</span><span class='hs-layout'>,</span> <span class='hs-varid'>peekArray</span><span class='hs-layout'>,</span> <span class='hs-varid'>pokeArray</span><span class='hs-layout'>,</span> <span class='hs-varid'>withArrayLen</span> <span class='hs-layout'>)</span> <a name="line-25"></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-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Storable</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Storable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</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'>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'>GLushort</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLuint</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLsizei</span><span class='hs-layout'>,</span> <span class='hs-conid'>GLfloat</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'>GetMaxPixelMapTable</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapIToISize</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapSToSSize</span><span class='hs-layout'>,</span> <a name="line-31"></a> <span class='hs-conid'>GetPixelMapIToRSize</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapIToGSize</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapIToBSize</span><span class='hs-layout'>,</span> <a name="line-32"></a> <span class='hs-conid'>GetPixelMapIToASize</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapRToRSize</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapGToGSize</span><span class='hs-layout'>,</span> <a name="line-33"></a> <span class='hs-conid'>GetPixelMapBToBSize</span><span class='hs-layout'>,</span><span class='hs-conid'>GetPixelMapAToASize</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-34"></a> <span class='hs-varid'>getInteger1</span><span class='hs-layout'>,</span> <span class='hs-varid'>getSizei1</span> <span class='hs-layout'>)</span> <a name="line-35"></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-36"></a> <span class='hs-conid'>HasSetter</span><span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>$=</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>HasGetter</span><span class='hs-layout'>(</span><span class='hs-varid'>get</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>GettableStateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeGettableStateVar</span><span class='hs-layout'>,</span> <a name="line-37"></a> <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-38"></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> <span class='hs-conid'>Color4</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <a name="line-39"></a> <a name="line-40"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-41"></a> <a name="line-42"></a><span class='hs-cpp'>#include "HsOpenGLTypes.h"</span> <a name="line-43"></a> <a name="line-44"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-45"></a> <a name="line-46"></a><a name="PixelMapTarget"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PixelMapTarget</span> <span class='hs-keyglyph'>=</span> <a name="line-47"></a> <span class='hs-conid'>IToI</span> <a name="line-48"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SToS</span> <a name="line-49"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IToR</span> <a name="line-50"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IToG</span> <a name="line-51"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IToB</span> <a name="line-52"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IToA</span> <a name="line-53"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RToR</span> <a name="line-54"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>GToG</span> <a name="line-55"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BToB</span> <a name="line-56"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AToA</span> <a name="line-57"></a> <a name="line-58"></a><a name="marshalPixelMapTarget"></a><span class='hs-definition'>marshalPixelMapTarget</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-59"></a><span class='hs-definition'>marshalPixelMapTarget</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-60"></a> <span class='hs-conid'>IToI</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc70</span> <a name="line-61"></a> <span class='hs-conid'>SToS</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc71</span> <a name="line-62"></a> <span class='hs-conid'>IToR</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc72</span> <a name="line-63"></a> <span class='hs-conid'>IToG</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc73</span> <a name="line-64"></a> <span class='hs-conid'>IToB</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc74</span> <a name="line-65"></a> <span class='hs-conid'>IToA</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc75</span> <a name="line-66"></a> <span class='hs-conid'>RToR</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc76</span> <a name="line-67"></a> <span class='hs-conid'>GToG</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc77</span> <a name="line-68"></a> <span class='hs-conid'>BToB</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc78</span> <a name="line-69"></a> <span class='hs-conid'>AToA</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0xc79</span> <a name="line-70"></a> <a name="line-71"></a><a name="pixelMapTargetToGetPName"></a><span class='hs-definition'>pixelMapTargetToGetPName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPName</span> <a name="line-72"></a><span class='hs-definition'>pixelMapTargetToGetPName</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-73"></a> <span class='hs-conid'>IToI</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapIToISize</span> <a name="line-74"></a> <span class='hs-conid'>SToS</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapSToSSize</span> <a name="line-75"></a> <span class='hs-conid'>IToR</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapIToRSize</span> <a name="line-76"></a> <span class='hs-conid'>IToG</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapIToGSize</span> <a name="line-77"></a> <span class='hs-conid'>IToB</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapIToBSize</span> <a name="line-78"></a> <span class='hs-conid'>IToA</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapIToASize</span> <a name="line-79"></a> <span class='hs-conid'>RToR</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapRToRSize</span> <a name="line-80"></a> <span class='hs-conid'>GToG</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapGToGSize</span> <a name="line-81"></a> <span class='hs-conid'>BToB</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapBToBSize</span> <a name="line-82"></a> <span class='hs-conid'>AToA</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GetPixelMapAToASize</span> <a name="line-83"></a> <a name="line-84"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-85"></a> <a name="line-86"></a><a name="maxPixelMapTable"></a><span class='hs-definition'>maxPixelMapTable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-87"></a><span class='hs-definition'>maxPixelMapTable</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getSizei1</span> <span class='hs-varid'>id</span> <span class='hs-conid'>GetMaxPixelMapTable</span> <a name="line-88"></a> <a name="line-89"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-90"></a> <a name="line-91"></a><a name="PixelMapComponent"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>Storable</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>where</span> <a name="line-92"></a> <span class='hs-varid'>getPixelMapv</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-93"></a> <span class='hs-varid'>pixelMapv</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-94"></a> <a name="line-95"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-conid'>GLushort_</span> <span class='hs-keyword'>where</span> <a name="line-96"></a> <span class='hs-varid'>getPixelMapv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glGetPixelMapusv</span> <a name="line-97"></a> <span class='hs-varid'>pixelMapv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glPixelMapusv</span> <a name="line-98"></a> <a name="line-99"></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'>"glGetPixelMapusv"</span> <span class='hs-varid'>glGetPixelMapusv</span> <span class='hs-keyglyph'>::</span> <a name="line-100"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>GLushort</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-101"></a> <a name="line-102"></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'>"glPixelMapusv"</span> <span class='hs-varid'>glPixelMapusv</span> <span class='hs-keyglyph'>::</span> <a name="line-103"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>GLushort</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-104"></a> <a name="line-105"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-conid'>GLuint_</span> <span class='hs-keyword'>where</span> <a name="line-106"></a> <span class='hs-varid'>getPixelMapv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glGetPixelMapuiv</span> <a name="line-107"></a> <span class='hs-varid'>pixelMapv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glPixelMapuiv</span> <a name="line-108"></a> <a name="line-109"></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'>"glGetPixelMapuiv"</span> <span class='hs-varid'>glGetPixelMapuiv</span> <span class='hs-keyglyph'>::</span> <a name="line-110"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>GLuint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-111"></a> <a name="line-112"></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'>"glPixelMapuiv"</span> <span class='hs-varid'>glPixelMapuiv</span> <span class='hs-keyglyph'>::</span> <a name="line-113"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>GLuint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-114"></a> <a name="line-115"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-conid'>GLfloat_</span> <span class='hs-keyword'>where</span> <a name="line-116"></a> <span class='hs-varid'>getPixelMapv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glGetPixelMapfv</span> <a name="line-117"></a> <span class='hs-varid'>pixelMapv</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>glPixelMapfv</span> <a name="line-118"></a> <a name="line-119"></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'>"glGetPixelMapfv"</span> <span class='hs-varid'>glGetPixelMapfv</span> <span class='hs-keyglyph'>::</span> <a name="line-120"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</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-121"></a> <a name="line-122"></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'>"glPixelMapfv"</span> <span class='hs-varid'>glPixelMapfv</span> <span class='hs-keyglyph'>::</span> <a name="line-123"></a> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</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-124"></a> <a name="line-125"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-126"></a> <a name="line-127"></a><a name="Int"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>PixelMap</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>where</span> <a name="line-128"></a> <span class='hs-varid'>withNewPixelMap</span> <span class='hs-keyglyph'>::</span> <a name="line-129"></a> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <a name="line-130"></a> <span class='hs-varid'>withPixelMap</span> <span class='hs-keyglyph'>::</span> <a name="line-131"></a> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>c</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-132"></a> <span class='hs-varid'>newPixelMap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <a name="line-133"></a> <span class='hs-varid'>getPixelMapComponents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <a name="line-134"></a> <a name="line-135"></a> <span class='hs-varid'>withNewPixelMap</span> <span class='hs-varid'>size</span> <span class='hs-varid'>act</span> <span class='hs-keyglyph'>=</span> <a name="line-136"></a> <span class='hs-varid'>allocaArray</span> <span class='hs-varid'>size</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-137"></a> <span class='hs-varid'>act</span> <span class='hs-varid'>p</span> <a name="line-138"></a> <span class='hs-varid'>components</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peekArray</span> <span class='hs-varid'>size</span> <span class='hs-varid'>p</span> <a name="line-139"></a> <span class='hs-varid'>newPixelMap</span> <span class='hs-varid'>components</span> <a name="line-140"></a> <a name="line-141"></a> <span class='hs-varid'>withPixelMap</span> <span class='hs-varid'>m</span> <span class='hs-varid'>act</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-142"></a> <span class='hs-varid'>components</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getPixelMapComponents</span> <span class='hs-varid'>m</span> <a name="line-143"></a> <span class='hs-varid'>withArrayLen</span> <span class='hs-varid'>components</span> <span class='hs-varid'>act</span> <a name="line-144"></a> <a name="line-145"></a> <span class='hs-varid'>newPixelMap</span> <span class='hs-varid'>elements</span> <span class='hs-keyglyph'>=</span> <a name="line-146"></a> <span class='hs-varid'>withNewPixelMap</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>elements</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>pokeArray</span> <span class='hs-varid'>elements</span> <a name="line-147"></a> <a name="line-148"></a> <span class='hs-varid'>getPixelMapComponents</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <a name="line-149"></a> <span class='hs-varid'>withPixelMap</span> <span class='hs-varid'>m</span> <span class='hs-varid'>peekArray</span> <a name="line-150"></a> <a name="line-151"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-152"></a> <a name="line-153"></a><a name="GLpixelmap"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GLpixelmap</span> <span class='hs-conid'>Int</span> <span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <a name="line-154"></a><span class='hs-cpp'>#ifdef __HADDOCK__</span> <a name="line-155"></a><span class='hs-comment'>-- Help Haddock a bit, because it doesn't do any instance inference.</span> <a name="line-156"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Eq</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <a name="line-157"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Ord</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <a name="line-158"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <a name="line-159"></a><span class='hs-cpp'>#else</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> <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-161"></a><span class='hs-cpp'>#endif</span> <a name="line-162"></a> <a name="line-163"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PixelMap</span> <span class='hs-conid'>GLpixelmap</span> <span class='hs-keyword'>where</span> <a name="line-164"></a> <span class='hs-varid'>withNewPixelMap</span> <span class='hs-varid'>size</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-165"></a> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mallocForeignPtrArray</span> <span class='hs-varid'>size</span> <a name="line-166"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>f</span> <a name="line-167"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>size</span> <span class='hs-varid'>fp</span> <a name="line-168"></a> <a name="line-169"></a> <span class='hs-varid'>withPixelMap</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>size</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>size</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="pixelMap"></a><span class='hs-definition'>pixelMap</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>PixelMap</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PixelMapTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <a name="line-174"></a><span class='hs-definition'>pixelMap</span> <span class='hs-varid'>pm</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-keyword'>do</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pixelMapSize</span> <span class='hs-varid'>pm</span> <a name="line-177"></a> <span class='hs-varid'>withNewPixelMap</span> <span class='hs-varid'>size</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getPixelMapv</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelMapTarget</span> <span class='hs-varid'>pm</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-178"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>theMap</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withPixelMap</span> <span class='hs-varid'>theMap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pixelMapv</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelMapTarget</span> <span class='hs-varid'>pm</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span><span class='hs-layout'>)</span> <a name="line-179"></a> <a name="line-180"></a><a name="pixelMapSize"></a><span class='hs-definition'>pixelMapSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span> <a name="line-181"></a><span class='hs-definition'>pixelMapSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getInteger1</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>pixelMapTargetToGetPName</span> <a name="line-182"></a> <a name="line-183"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-184"></a> <a name="line-185"></a><span class='hs-comment'>-- | Convenience state variable</span> <a name="line-186"></a> <a name="line-187"></a><a name="pixelMapIToRGBA"></a><span class='hs-definition'>pixelMapIToRGBA</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>StateVar</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color4</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <a name="line-188"></a><span class='hs-definition'>pixelMapIToRGBA</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pixelMapXToY</span> <span class='hs-layout'>(</span><span class='hs-conid'>IToR</span><span class='hs-layout'>,</span> <span class='hs-conid'>IToG</span><span class='hs-layout'>,</span> <span class='hs-conid'>IToB</span><span class='hs-layout'>,</span> <span class='hs-conid'>IToA</span><span class='hs-layout'>)</span> <a name="line-189"></a> <a name="line-190"></a><span class='hs-comment'>-- | Convenience state variable</span> <a name="line-191"></a> <a name="line-192"></a><a name="pixelMapRGBAToRGBA"></a><span class='hs-definition'>pixelMapRGBAToRGBA</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>StateVar</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color4</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <a name="line-193"></a><span class='hs-definition'>pixelMapRGBAToRGBA</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pixelMapXToY</span> <span class='hs-layout'>(</span><span class='hs-conid'>RToR</span><span class='hs-layout'>,</span> <span class='hs-conid'>GToG</span><span class='hs-layout'>,</span> <span class='hs-conid'>BToB</span><span class='hs-layout'>,</span> <span class='hs-conid'>AToA</span><span class='hs-layout'>)</span> <a name="line-194"></a> <a name="line-195"></a><a name="pixelMapXToY"></a><span class='hs-definition'>pixelMapXToY</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <a name="line-196"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>)</span> <a name="line-197"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StateVar</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color4</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <a name="line-198"></a><span class='hs-definition'>pixelMapXToY</span> <span class='hs-varid'>targets</span> <span class='hs-keyglyph'>=</span> <a name="line-199"></a> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getPixelMapXToY</span> <span class='hs-varid'>targets</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>setPixelMapXToY</span> <span class='hs-varid'>targets</span><span class='hs-layout'>)</span> <a name="line-200"></a> <a name="line-201"></a><a name="getPixelMapXToY"></a><span class='hs-definition'>getPixelMapXToY</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <a name="line-202"></a> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>)</span> <a name="line-203"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color4</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <a name="line-204"></a><span class='hs-definition'>getPixelMapXToY</span> <span class='hs-layout'>(</span><span class='hs-varid'>toR</span><span class='hs-layout'>,</span> <span class='hs-varid'>toG</span><span class='hs-layout'>,</span> <span class='hs-varid'>toB</span><span class='hs-layout'>,</span> <span class='hs-varid'>toA</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-205"></a> <span class='hs-varid'>withPixelMapFor</span> <span class='hs-varid'>toR</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizeR</span> <span class='hs-varid'>bufR</span> <span class='hs-keyglyph'>-></span> <a name="line-206"></a> <span class='hs-varid'>withPixelMapFor</span> <span class='hs-varid'>toG</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizeG</span> <span class='hs-varid'>bufG</span> <span class='hs-keyglyph'>-></span> <a name="line-207"></a> <span class='hs-varid'>withPixelMapFor</span> <span class='hs-varid'>toB</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizeB</span> <span class='hs-varid'>bufB</span> <span class='hs-keyglyph'>-></span> <a name="line-208"></a> <span class='hs-varid'>withPixelMapFor</span> <span class='hs-varid'>toA</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizeA</span> <span class='hs-varid'>bufA</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-209"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>maxSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sizeR</span> <span class='hs-varop'>`max`</span> <span class='hs-varid'>sizeG</span> <span class='hs-varop'>`max`</span> <span class='hs-varid'>sizeB</span> <span class='hs-varop'>`max`</span> <span class='hs-varid'>sizeA</span> <a name="line-210"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>sample</span> <span class='hs-varid'>sizeR</span> <span class='hs-varid'>bufR</span> <span class='hs-varid'>maxSize</span> <a name="line-211"></a> <span class='hs-varid'>g</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>sample</span> <span class='hs-varid'>sizeR</span> <span class='hs-varid'>bufG</span> <span class='hs-varid'>maxSize</span> <a name="line-212"></a> <span class='hs-varid'>b</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>sample</span> <span class='hs-varid'>sizeR</span> <span class='hs-varid'>bufB</span> <span class='hs-varid'>maxSize</span> <a name="line-213"></a> <span class='hs-varid'>a</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>sample</span> <span class='hs-varid'>sizeR</span> <span class='hs-varid'>bufA</span> <span class='hs-varid'>maxSize</span> <a name="line-214"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>zipWith4</span> <span class='hs-conid'>Color4</span> <span class='hs-varid'>r</span> <span class='hs-varid'>g</span> <span class='hs-varid'>b</span> <span class='hs-varid'>a</span> <a name="line-215"></a> <a name="line-216"></a><a name="withPixelMapFor"></a><span class='hs-definition'>withPixelMapFor</span> <span class='hs-keyglyph'>::</span> <a name="line-217"></a> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PixelMapTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>c</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-218"></a><span class='hs-definition'>withPixelMapFor</span> <span class='hs-varid'>target</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-219"></a> <span class='hs-varid'>theMap</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>get</span> <span class='hs-layout'>(</span><span class='hs-varid'>pixelMap</span> <span class='hs-varid'>target</span><span class='hs-layout'>)</span> <a name="line-220"></a> <span class='hs-varid'>withGLpixelmap</span> <span class='hs-varid'>theMap</span> <span class='hs-varid'>f</span> <a name="line-221"></a> <a name="line-222"></a><a name="withGLpixelmap"></a><span class='hs-definition'>withGLpixelmap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <a name="line-223"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>c</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-224"></a><span class='hs-definition'>withGLpixelmap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withPixelMap</span> <a name="line-225"></a> <a name="line-226"></a><a name="sample"></a><span class='hs-definition'>sample</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Storable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <a name="line-227"></a><span class='hs-definition'>sample</span> <span class='hs-varid'>len</span> <span class='hs-varid'>ptr</span> <span class='hs-varid'>newLen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>newLen</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <a name="line-228"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>scale</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Float</span> <a name="line-229"></a> <span class='hs-varid'>scale</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>len</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>newLen</span> <a name="line-230"></a> <span class='hs-varid'>f</span> <span class='hs-varid'>l</span> <span class='hs-varid'>acc</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>l</span> <span class='hs-varop'><</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>acc</span> <a name="line-231"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peekElemOff</span> <span class='hs-varid'>ptr</span> <span class='hs-layout'>(</span><span class='hs-varid'>truncate</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span> <span class='hs-varop'>*</span> <span class='hs-varid'>scale</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-232"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span> <span class='hs-conop'>:</span> <span class='hs-varid'>acc</span><span class='hs-layout'>)</span> <a name="line-233"></a> <a name="line-234"></a><a name="setPixelMapXToY"></a><span class='hs-definition'>setPixelMapXToY</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <a name="line-235"></a> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>,</span> <span class='hs-conid'>PixelMapTarget</span><span class='hs-layout'>)</span> <a name="line-236"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color4</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-237"></a><span class='hs-definition'>setPixelMapXToY</span> <span class='hs-layout'>(</span><span class='hs-varid'>toR</span><span class='hs-layout'>,</span> <span class='hs-varid'>toG</span><span class='hs-layout'>,</span> <span class='hs-varid'>toB</span><span class='hs-layout'>,</span> <span class='hs-varid'>toA</span><span class='hs-layout'>)</span> <span class='hs-varid'>colors</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-238"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pixelMap</span> <span class='hs-varid'>toR</span> <span class='hs-varop'>$=</span><span class='hs-layout'>)</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>newGLpixelmap</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Color4</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>colors</span> <span class='hs-keyglyph'>]</span> <a name="line-239"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pixelMap</span> <span class='hs-varid'>toG</span> <span class='hs-varop'>$=</span><span class='hs-layout'>)</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>newGLpixelmap</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Color4</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>g</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>colors</span> <span class='hs-keyglyph'>]</span> <a name="line-240"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pixelMap</span> <span class='hs-varid'>toB</span> <span class='hs-varop'>$=</span><span class='hs-layout'>)</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>newGLpixelmap</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Color4</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>b</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>colors</span> <span class='hs-keyglyph'>]</span> <a name="line-241"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pixelMap</span> <span class='hs-varid'>toA</span> <span class='hs-varop'>$=</span><span class='hs-layout'>)</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>newGLpixelmap</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Color4</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>colors</span> <span class='hs-keyglyph'>]</span> <a name="line-242"></a> <a name="line-243"></a><a name="newGLpixelmap"></a><span class='hs-definition'>newGLpixelmap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelMapComponent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLpixelmap</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <a name="line-244"></a><span class='hs-definition'>newGLpixelmap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>newPixelMap</span> </pre></body> </html>
