<?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/Convolution.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.Convolution</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'>Convolution</span> <span class='hs-layout'>(</span> <a name="line-17"></a> <span class='hs-conid'>ConvolutionTarget</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'>convolution</span><span class='hs-layout'>,</span> <a name="line-18"></a> <span class='hs-varid'>convolutionFilter1D</span><span class='hs-layout'>,</span> <span class='hs-varid'>getConvolutionFilter1D</span><span class='hs-layout'>,</span> <a name="line-19"></a> <span class='hs-varid'>convolutionFilter2D</span><span class='hs-layout'>,</span> <span class='hs-varid'>getConvolutionFilter2D</span><span class='hs-layout'>,</span> <a name="line-20"></a> <span class='hs-varid'>separableFilter2D</span><span class='hs-layout'>,</span> <span class='hs-varid'>getSeparableFilter2D</span><span class='hs-layout'>,</span> <a name="line-21"></a> <span class='hs-varid'>copyConvolutionFilter1D</span><span class='hs-layout'>,</span> <span class='hs-varid'>copyConvolutionFilter2D</span><span class='hs-layout'>,</span> <a name="line-22"></a> <span class='hs-varid'>convolutionWidth</span><span class='hs-layout'>,</span> <span class='hs-varid'>convolutionHeight</span><span class='hs-layout'>,</span> <a name="line-23"></a> <span class='hs-varid'>maxConvolutionWidth</span><span class='hs-layout'>,</span> <span class='hs-varid'>maxConvolutionHeight</span><span class='hs-layout'>,</span> <a name="line-24"></a> <span class='hs-conid'>ConvolutionBorderMode</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'>convolutionBorderMode</span><span class='hs-layout'>,</span> <a name="line-25"></a> <span class='hs-varid'>convolutionFilterScale</span><span class='hs-layout'>,</span> <span class='hs-varid'>convolutionFilterBias</span><span class='hs-layout'>,</span> <a name="line-26"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-27"></a> <a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Marshal</span><span class='hs-varop'>.</span><span class='hs-conid'>Alloc</span> <span class='hs-layout'>(</span> <span class='hs-varid'>alloca</span> <span class='hs-layout'>)</span> <a name="line-29"></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-30"></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> <a name="line-31"></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-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>Capability</span> <span class='hs-layout'>(</span> <a name="line-33"></a> <span class='hs-conid'>EnableCap</span><span class='hs-layout'>(</span><span class='hs-conid'>CapConvolution1D</span><span class='hs-layout'>,</span> <span class='hs-conid'>CapConvolution2D</span><span class='hs-layout'>,</span><span class='hs-conid'>CapSeparable2D</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-34"></a> <span class='hs-varid'>makeCapability</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'>BasicTypes</span> <span class='hs-layout'>(</span> <a name="line-36"></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'>GLsizei</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-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>CoordTrans</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Position</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'>Size</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</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'>Extensions</span> <span class='hs-layout'>(</span> <a name="line-39"></a> <span class='hs-conid'>FunPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafePerformIO</span><span class='hs-layout'>,</span> <span class='hs-conid'>Invoker</span><span class='hs-layout'>,</span> <span class='hs-varid'>getProcAddress</span> <span class='hs-layout'>)</span> <a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>PeekPoke</span> <span class='hs-layout'>(</span> <span class='hs-varid'>peek1</span> <span class='hs-layout'>)</span> <a name="line-41"></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'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>ColorTable</span> <span class='hs-layout'>(</span> <a name="line-42"></a> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-layout'>)</span> <a name="line-43"></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'>PixelRectangles</span><span class='hs-varop'>.</span><span class='hs-conid'>Rasterization</span> <span class='hs-layout'>(</span> <a name="line-44"></a> <span class='hs-conid'>PixelData</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <a name="line-45"></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'>PixelData</span> <span class='hs-layout'>(</span> <span class='hs-varid'>withPixelData</span> <span class='hs-layout'>)</span> <a name="line-46"></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'>Texturing</span><span class='hs-varop'>.</span><span class='hs-conid'>PixelInternalFormat</span> <span class='hs-layout'>(</span> <a name="line-47"></a> <span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-layout'>)</span> <a name="line-48"></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-49"></a> <span class='hs-conid'>GettableStateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeGettableStateVar</span><span class='hs-layout'>,</span> <span class='hs-conid'>StateVar</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>)</span> <a name="line-50"></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-51"></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-52"></a> <span class='hs-varid'>recordInvalidValue</span> <span class='hs-layout'>)</span> <a name="line-53"></a> <a name="line-54"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-55"></a> <a name="line-56"></a><span class='hs-cpp'>#include "HsOpenGLExt.h"</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="ConvolutionTarget"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>=</span> <a name="line-61"></a> <span class='hs-conid'>Convolution1D</span> <a name="line-62"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Convolution2D</span> <a name="line-63"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Separable2D</span> <a name="line-64"></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-65"></a> <a name="line-66"></a><a name="marshalConvolutionTarget"></a><span class='hs-definition'>marshalConvolutionTarget</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-67"></a><span class='hs-definition'>marshalConvolutionTarget</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-68"></a> <span class='hs-conid'>Convolution1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8010</span> <a name="line-69"></a> <span class='hs-conid'>Convolution2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8011</span> <a name="line-70"></a> <span class='hs-conid'>Separable2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8012</span> <a name="line-71"></a> <a name="line-72"></a><a name="convolutionTargetToEnableCap"></a><span class='hs-definition'>convolutionTargetToEnableCap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>EnableCap</span> <a name="line-73"></a><span class='hs-definition'>convolutionTargetToEnableCap</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'>Convolution1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CapConvolution1D</span> <a name="line-75"></a> <span class='hs-conid'>Convolution2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CapConvolution2D</span> <a name="line-76"></a> <span class='hs-conid'>Separable2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CapSeparable2D</span> <a name="line-77"></a> <a name="line-78"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-79"></a> <a name="line-80"></a><a name="convolution"></a><span class='hs-definition'>convolution</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>Capability</span> <a name="line-81"></a><span class='hs-definition'>convolution</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeCapability</span> <span class='hs-varop'>.</span> <span class='hs-varid'>convolutionTargetToEnableCap</span> <a name="line-82"></a> <a name="line-83"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-84"></a> <a name="line-85"></a><a name="convolutionFilter1D"></a><span class='hs-definition'>convolutionFilter1D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-86"></a><span class='hs-definition'>convolutionFilter1D</span> <span class='hs-varid'>int</span> <span class='hs-varid'>w</span> <span class='hs-varid'>pd</span> <span class='hs-keyglyph'>=</span> <a name="line-87"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pd</span> <span class='hs-varop'>$</span> <a name="line-88"></a> <span class='hs-varid'>glConvolutionFilter1D</span> <a name="line-89"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-conid'>Convolution1D</span><span class='hs-layout'>)</span> <a name="line-90"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <span class='hs-varid'>w</span> <a name="line-91"></a> <a name="line-92"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glConvolutionFilter1D</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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'>GLenum</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'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-93"></a> <a name="line-94"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-95"></a> <a name="line-96"></a><a name="getConvolutionFilter1D"></a><span class='hs-definition'>getConvolutionFilter1D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-97"></a><span class='hs-definition'>getConvolutionFilter1D</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getConvolutionFilter</span> <span class='hs-conid'>Convolution1D</span> <a name="line-98"></a> <a name="line-99"></a><a name="getConvolutionFilter"></a><span class='hs-definition'>getConvolutionFilter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-100"></a><span class='hs-definition'>getConvolutionFilter</span> <span class='hs-varid'>t</span> <span class='hs-varid'>pd</span> <span class='hs-keyglyph'>=</span> <a name="line-101"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>glGetConvolutionFilter</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <a name="line-102"></a> <a name="line-103"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glGetConvolutionFilter</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</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'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-104"></a> <a name="line-105"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-106"></a> <a name="line-107"></a><a name="convolutionFilter2D"></a><span class='hs-definition'>convolutionFilter2D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-108"></a><span class='hs-definition'>convolutionFilter2D</span> <span class='hs-varid'>int</span> <span class='hs-layout'>(</span><span class='hs-conid'>Size</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-varid'>pd</span> <span class='hs-keyglyph'>=</span> <a name="line-109"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pd</span> <span class='hs-varop'>$</span> <a name="line-110"></a> <span class='hs-varid'>glConvolutionFilter2D</span> <a name="line-111"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-conid'>Convolution2D</span><span class='hs-layout'>)</span> <a name="line-112"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span> <a name="line-113"></a> <a name="line-114"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glConvolutionFilter2D</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</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'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-115"></a> <a name="line-116"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-117"></a> <a name="line-118"></a><a name="getConvolutionFilter2D"></a><span class='hs-definition'>getConvolutionFilter2D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-119"></a><span class='hs-definition'>getConvolutionFilter2D</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getConvolutionFilter</span> <span class='hs-conid'>Convolution2D</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="separableFilter2D"></a><span class='hs-definition'>separableFilter2D</span> <span class='hs-keyglyph'>::</span> <a name="line-124"></a> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-125"></a><span class='hs-definition'>separableFilter2D</span> <span class='hs-varid'>int</span> <span class='hs-layout'>(</span><span class='hs-conid'>Size</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-varid'>pdRow</span> <span class='hs-varid'>pdCol</span> <span class='hs-keyglyph'>=</span> <a name="line-126"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pdRow</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>f1</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>p1</span> <span class='hs-keyglyph'>-></span> <a name="line-127"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pdCol</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>f2</span> <span class='hs-varid'>d2</span> <span class='hs-varid'>p2</span> <span class='hs-keyglyph'>-></span> <a name="line-128"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>f1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>f2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>d1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>d2</span> <a name="line-129"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>glSeparableFilter2D</span> <a name="line-130"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-conid'>Separable2D</span><span class='hs-layout'>)</span> <a name="line-131"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>p1</span> <span class='hs-varid'>p2</span> <a name="line-132"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>recordInvalidValue</span> <a name="line-133"></a> <a name="line-134"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glSeparableFilter2D</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</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'>a</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'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-135"></a> <a name="line-136"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-137"></a> <a name="line-138"></a><a name="getSeparableFilter2D"></a><span class='hs-definition'>getSeparableFilter2D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelData</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-139"></a><span class='hs-definition'>getSeparableFilter2D</span> <span class='hs-varid'>pdRow</span> <span class='hs-varid'>pdCol</span> <span class='hs-keyglyph'>=</span> <a name="line-140"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pdRow</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>f1</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>p1</span> <span class='hs-keyglyph'>-></span> <a name="line-141"></a> <span class='hs-varid'>withPixelData</span> <span class='hs-varid'>pdCol</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>f2</span> <span class='hs-varid'>d2</span> <span class='hs-varid'>p2</span> <span class='hs-keyglyph'>-></span> <a name="line-142"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>f1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>f2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>d1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>d2</span> <a name="line-143"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>glGetSeparableFilter</span> <a name="line-144"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-conid'>Separable2D</span><span class='hs-layout'>)</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>p1</span> <span class='hs-varid'>p2</span> <span class='hs-varid'>nullPtr</span> <a name="line-145"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>recordInvalidValue</span> <a name="line-146"></a> <a name="line-147"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glGetSeparableFilter</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</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'>a</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'>Ptr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-148"></a> <a name="line-149"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-150"></a> <a name="line-151"></a><a name="copyConvolutionFilter1D"></a><span class='hs-definition'>copyConvolutionFilter1D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Position</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-152"></a><span class='hs-definition'>copyConvolutionFilter1D</span> <span class='hs-varid'>int</span> <span class='hs-layout'>(</span><span class='hs-conid'>Position</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-153"></a> <span class='hs-varid'>glCopyConvolutionFilter1D</span> <a name="line-154"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-conid'>Convolution1D</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <a name="line-155"></a> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <a name="line-156"></a> <a name="line-157"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glCopyConvolutionFilter1D</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-158"></a> <a name="line-159"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-160"></a> <a name="line-161"></a><a name="copyConvolutionFilter2D"></a><span class='hs-definition'>copyConvolutionFilter2D</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelInternalFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Position</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-162"></a><span class='hs-definition'>copyConvolutionFilter2D</span> <span class='hs-varid'>int</span> <span class='hs-layout'>(</span><span class='hs-conid'>Position</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Size</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <a name="line-163"></a> <span class='hs-varid'>glCopyConvolutionFilter2D</span> <a name="line-164"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-conid'>Convolution2D</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalPixelInternalFormat'</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <a name="line-165"></a> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span> <a name="line-166"></a> <a name="line-167"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glCopyConvolutionFilter2D</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLsizei</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-168"></a> <a name="line-169"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-170"></a> <a name="line-171"></a><a name="ConvolutionParameter"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>=</span> <a name="line-172"></a> <span class='hs-conid'>ConvolutionBorderColor</span> <a name="line-173"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConvolutionBorderMode</span> <a name="line-174"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConvolutionFilterScale</span> <a name="line-175"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConvolutionFilterBias</span> <a name="line-176"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConvolutionFormat</span> <a name="line-177"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConvolutionWidth</span> <a name="line-178"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConvolutionHeight</span> <a name="line-179"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>MaxConvolutionWidth</span> <a name="line-180"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>MaxConvolutionHeight</span> <a name="line-181"></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-182"></a> <a name="line-183"></a><a name="marshalConvolutionParameter"></a><span class='hs-definition'>marshalConvolutionParameter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-184"></a><span class='hs-definition'>marshalConvolutionParameter</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-185"></a> <span class='hs-conid'>ConvolutionBorderColor</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8154</span> <a name="line-186"></a> <span class='hs-conid'>ConvolutionBorderMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8013</span> <a name="line-187"></a> <span class='hs-conid'>ConvolutionFilterScale</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8014</span> <a name="line-188"></a> <span class='hs-conid'>ConvolutionFilterBias</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8015</span> <a name="line-189"></a> <span class='hs-conid'>ConvolutionFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8017</span> <a name="line-190"></a> <span class='hs-conid'>ConvolutionWidth</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8018</span> <a name="line-191"></a> <span class='hs-conid'>ConvolutionHeight</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8019</span> <a name="line-192"></a> <span class='hs-conid'>MaxConvolutionWidth</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x801a</span> <a name="line-193"></a> <span class='hs-conid'>MaxConvolutionHeight</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x801b</span> <a name="line-194"></a> <a name="line-195"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-196"></a> <a name="line-197"></a><a name="convolutionWidth"></a><span class='hs-definition'>convolutionWidth</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-198"></a><span class='hs-definition'>convolutionWidth</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convolutionParameteri</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ConvolutionWidth</span> <a name="line-199"></a> <a name="line-200"></a><a name="convolutionHeight"></a><span class='hs-definition'>convolutionHeight</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-201"></a><span class='hs-definition'>convolutionHeight</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convolutionParameteri</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ConvolutionHeight</span> <a name="line-202"></a> <a name="line-203"></a><a name="maxConvolutionWidth"></a><span class='hs-definition'>maxConvolutionWidth</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-204"></a><span class='hs-definition'>maxConvolutionWidth</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convolutionParameteri</span> <span class='hs-varid'>t</span> <span class='hs-conid'>MaxConvolutionWidth</span> <a name="line-205"></a> <a name="line-206"></a><a name="maxConvolutionHeight"></a><span class='hs-definition'>maxConvolutionHeight</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-207"></a><span class='hs-definition'>maxConvolutionHeight</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convolutionParameteri</span> <span class='hs-varid'>t</span> <span class='hs-conid'>MaxConvolutionHeight</span> <a name="line-208"></a> <a name="line-209"></a><a name="convolutionParameteri"></a><span class='hs-definition'>convolutionParameteri</span> <span class='hs-keyglyph'>::</span> <a name="line-210"></a> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GettableStateVar</span> <span class='hs-conid'>GLsizei</span> <a name="line-211"></a><span class='hs-definition'>convolutionParameteri</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <a name="line-212"></a> <span class='hs-varid'>makeGettableStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getConvolutionParameteri</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <a name="line-213"></a> <a name="line-214"></a><a name="getConvolutionParameteri"></a><span class='hs-definition'>getConvolutionParameteri</span> <span class='hs-keyglyph'>::</span> <a name="line-215"></a> <span class='hs-layout'>(</span><span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <a name="line-216"></a><span class='hs-definition'>getConvolutionParameteri</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <a name="line-217"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>buf</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-218"></a> <span class='hs-varid'>glGetConvolutionParameteriv</span> <a name="line-219"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionParameter</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>buf</span> <a name="line-220"></a> <span class='hs-varid'>peek1</span> <span class='hs-varid'>f</span> <span class='hs-varid'>buf</span> <a name="line-221"></a> <a name="line-222"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glGetConvolutionParameteriv</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <a name="line-223"></a> <a name="line-224"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-225"></a> <a name="line-226"></a><a name="ConvolutionBorderMode'"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ConvolutionBorderMode'</span> <span class='hs-keyglyph'>=</span> <a name="line-227"></a> <span class='hs-conid'>Reduce'</span> <a name="line-228"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConstantBorder'</span> <a name="line-229"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ReplicateBorder'</span> <a name="line-230"></a> <a name="line-231"></a><a name="marshalConvolutionBorderMode'"></a><span class='hs-definition'>marshalConvolutionBorderMode'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionBorderMode'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span> <a name="line-232"></a><span class='hs-definition'>marshalConvolutionBorderMode'</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-233"></a> <span class='hs-conid'>Reduce'</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8016</span> <a name="line-234"></a> <span class='hs-conid'>ConstantBorder'</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8151</span> <a name="line-235"></a> <span class='hs-conid'>ReplicateBorder'</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8153</span> <a name="line-236"></a> <a name="line-237"></a><a name="unmarshalConvolutionBorderMode'"></a><span class='hs-definition'>unmarshalConvolutionBorderMode'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionBorderMode'</span> <a name="line-238"></a><span class='hs-definition'>unmarshalConvolutionBorderMode'</span> <span class='hs-varid'>x</span> <a name="line-239"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x8016</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Reduce'</span> <a name="line-240"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x8151</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConstantBorder'</span> <a name="line-241"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x8153</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ReplicateBorder'</span> <a name="line-242"></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'>"unmarshalConvolutionBorderMode': 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-243"></a> <a name="line-244"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-245"></a> <a name="line-246"></a><a name="ConvolutionBorderMode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ConvolutionBorderMode</span> <span class='hs-keyglyph'>=</span> <a name="line-247"></a> <span class='hs-conid'>Reduce</span> <a name="line-248"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConstantBorder</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-249"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ReplicateBorder</span> <a name="line-250"></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-251"></a> <a name="line-252"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-253"></a> <a name="line-254"></a><a name="convolutionBorderMode"></a><span class='hs-definition'>convolutionBorderMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StateVar</span> <span class='hs-conid'>ConvolutionBorderMode</span> <a name="line-255"></a><span class='hs-definition'>convolutionBorderMode</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <a name="line-256"></a> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getConvolutionBorderMode</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>setConvolutionBorderMode</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <a name="line-257"></a> <a name="line-258"></a><a name="getConvolutionBorderMode"></a><span class='hs-definition'>getConvolutionBorderMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>ConvolutionBorderMode</span> <a name="line-259"></a><span class='hs-definition'>getConvolutionBorderMode</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-260"></a> <span class='hs-varid'>mode</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getConvolutionParameteri</span> <a name="line-261"></a> <span class='hs-varid'>unmarshalConvolutionBorderMode'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ConvolutionBorderMode</span> <a name="line-262"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mode</span> <span class='hs-keyword'>of</span> <a name="line-263"></a> <span class='hs-conid'>Reduce'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Reduce</span> <a name="line-264"></a> <span class='hs-conid'>ConstantBorder'</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-265"></a> <span class='hs-varid'>c</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getConvolutionParameterC4f</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ConvolutionBorderColor</span> <a name="line-266"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ConstantBorder</span> <span class='hs-varid'>c</span> <a name="line-267"></a> <span class='hs-conid'>ReplicateBorder'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>ReplicateBorder</span> <a name="line-268"></a> <a name="line-269"></a><a name="setConvolutionBorderMode"></a><span class='hs-definition'>setConvolutionBorderMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionBorderMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-270"></a><span class='hs-definition'>setConvolutionBorderMode</span> <span class='hs-varid'>t</span> <span class='hs-varid'>mode</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-271"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>setBM</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>setConvolutionParameteri</span> <a name="line-272"></a> <span class='hs-varid'>marshalConvolutionBorderMode'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ConvolutionBorderMode</span> <a name="line-273"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mode</span> <span class='hs-keyword'>of</span> <a name="line-274"></a> <span class='hs-conid'>Reduce</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>setBM</span> <span class='hs-conid'>Reduce'</span> <a name="line-275"></a> <span class='hs-conid'>ConstantBorder</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-276"></a> <span class='hs-varid'>setBM</span> <span class='hs-conid'>ConstantBorder'</span> <a name="line-277"></a> <span class='hs-varid'>convolutionParameterC4f</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ConvolutionBorderColor</span> <span class='hs-varid'>c</span> <a name="line-278"></a> <span class='hs-conid'>ReplicateBorder</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>setBM</span> <span class='hs-conid'>ReplicateBorder'</span> <a name="line-279"></a> <a name="line-280"></a><a name="setConvolutionParameteri"></a><span class='hs-definition'>setConvolutionParameteri</span> <span class='hs-keyglyph'>::</span> <a name="line-281"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLint</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-282"></a><span class='hs-definition'>setConvolutionParameteri</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <a name="line-283"></a> <span class='hs-varid'>glConvolutionParameteri</span> <a name="line-284"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionParameter</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <a name="line-285"></a> <a name="line-286"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glConvolutionParameteri</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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><span class='hs-layout'>)</span> <a name="line-287"></a> <a name="line-288"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-289"></a> <a name="line-290"></a><a name="convolutionFilterScale"></a><span class='hs-definition'>convolutionFilterScale</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</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-291"></a><span class='hs-definition'>convolutionFilterScale</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convolutionC4f</span> <span class='hs-conid'>ConvolutionFilterScale</span> <a name="line-292"></a> <a name="line-293"></a><a name="convolutionFilterBias"></a><span class='hs-definition'>convolutionFilterBias</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConvolutionTarget</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-294"></a><span class='hs-definition'>convolutionFilterBias</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convolutionC4f</span> <span class='hs-conid'>ConvolutionFilterBias</span> <a name="line-295"></a> <a name="line-296"></a><a name="convolutionC4f"></a><span class='hs-definition'>convolutionC4f</span> <span class='hs-keyglyph'>::</span> <a name="line-297"></a> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionTarget</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-298"></a><span class='hs-definition'>convolutionC4f</span> <span class='hs-varid'>p</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <a name="line-299"></a> <span class='hs-varid'>makeStateVar</span> <span class='hs-layout'>(</span><span class='hs-varid'>getConvolutionParameterC4f</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>convolutionParameterC4f</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <a name="line-300"></a> <a name="line-301"></a><a name="getConvolutionParameterC4f"></a><span class='hs-definition'>getConvolutionParameterC4f</span> <span class='hs-keyglyph'>::</span> <a name="line-302"></a> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</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-303"></a><span class='hs-definition'>getConvolutionParameterC4f</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <a name="line-304"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>buf</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-305"></a> <span class='hs-varid'>glGetConvolutionParameterfv</span> <a name="line-306"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionParameter</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>buf</span> <a name="line-307"></a> <span class='hs-varid'>peek</span> <span class='hs-varid'>buf</span> <a name="line-308"></a> <a name="line-309"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glGetConvolutionParameterfv</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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-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><span class='hs-layout'>)</span> <a name="line-310"></a> <a name="line-311"></a><a name="convolutionParameterC4f"></a><span class='hs-definition'>convolutionParameterC4f</span> <span class='hs-keyglyph'>::</span> <a name="line-312"></a> <span class='hs-conid'>ConvolutionTarget</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConvolutionParameter</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Color4</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-313"></a><span class='hs-definition'>convolutionParameterC4f</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <a name="line-314"></a> <span class='hs-varid'>with</span> <span class='hs-varid'>c</span> <span class='hs-varop'>$</span> <a name="line-315"></a> <span class='hs-varid'>glConvolutionParameterfv</span> <a name="line-316"></a> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionTarget</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>marshalConvolutionParameter</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <a name="line-317"></a> <a name="line-318"></a><span class='hs-conid'>EXTENSION_ENTRY</span><span class='hs-layout'>(</span><span class='hs-str'>"GL_ARB_imaging"</span><span class='hs-layout'>,</span><span class='hs-varid'>glConvolutionParameterfv</span><span class='hs-layout'>,</span><span class='hs-conid'>GLenum</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-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><span class='hs-layout'>)</span> </pre></body> </html>
