<?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/PixelFormat.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a><span class='hs-comment'>-- #hide</span> <a name="line-2"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-3"></a><span class='hs-comment'>-- |</span> <a name="line-4"></a><span class='hs-comment'>-- Module : Graphics.Rendering.OpenGL.GL.PixelFormat</span> <a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Sven Panne 2002-2009</span> <a name="line-6"></a><span class='hs-comment'>-- License : BSD-style (see the file libraries/OpenGL/LICENSE)</span> <a name="line-7"></a><span class='hs-comment'>-- </span> <a name="line-8"></a><span class='hs-comment'>-- Maintainer : sven.panne@aedion.de</span> <a name="line-9"></a><span class='hs-comment'>-- Stability : stable</span> <a name="line-10"></a><span class='hs-comment'>-- Portability : portable</span> <a name="line-11"></a><span class='hs-comment'>--</span> <a name="line-12"></a><span class='hs-comment'>-- This is a purely internal module for (un-)marshaling PixelFormat.</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'>PixelFormat</span> <span class='hs-layout'>(</span> <a name="line-17"></a> <span class='hs-conid'>PixelFormat</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'>marshalPixelFormat</span><span class='hs-layout'>,</span> <span class='hs-varid'>unmarshalPixelFormat</span> <a name="line-18"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-19"></a> <a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>BasicTypes</span> <span class='hs-layout'>(</span> <span class='hs-conid'>GLenum</span> <span class='hs-layout'>)</span> <a name="line-21"></a> <a name="line-22"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-23"></a> <a name="line-24"></a><a name="PixelFormat"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PixelFormat</span> <span class='hs-keyglyph'>=</span> <a name="line-25"></a> <span class='hs-conid'>ColorIndex</span> <a name="line-26"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>StencilIndex</span> <a name="line-27"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DepthComponent</span> <a name="line-28"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Red</span> <a name="line-29"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Green</span> <a name="line-30"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Blue</span> <a name="line-31"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Alpha</span> <a name="line-32"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RGB</span> <a name="line-33"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RGBA</span> <a name="line-34"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Luminance</span> <a name="line-35"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>LuminanceAlpha</span> <a name="line-36"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ABGR</span> <a name="line-37"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BGR</span> <a name="line-38"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BGRA</span> <a name="line-39"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>CMYK</span> <a name="line-40"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>CMYKA</span> <a name="line-41"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FourTwoTwo</span> <a name="line-42"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FourTwoTwoRev</span> <a name="line-43"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FourTwoTwoAverage</span> <a name="line-44"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FourTwoTwoRevAverage</span> <a name="line-45"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>YCBCR422</span> <a name="line-46"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DepthStencil</span> <a name="line-47"></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-48"></a> <a name="line-49"></a><a name="marshalPixelFormat"></a><span class='hs-definition'>marshalPixelFormat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PixelFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GLenum</span> <a name="line-50"></a><span class='hs-definition'>marshalPixelFormat</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-51"></a> <span class='hs-conid'>ColorIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1900</span> <a name="line-52"></a> <span class='hs-conid'>StencilIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1901</span> <a name="line-53"></a> <span class='hs-conid'>DepthComponent</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1902</span> <a name="line-54"></a> <span class='hs-conid'>Red</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1903</span> <a name="line-55"></a> <span class='hs-conid'>Green</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1904</span> <a name="line-56"></a> <span class='hs-conid'>Blue</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1905</span> <a name="line-57"></a> <span class='hs-conid'>Alpha</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1906</span> <a name="line-58"></a> <span class='hs-conid'>RGB</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1907</span> <a name="line-59"></a> <span class='hs-conid'>RGBA</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1908</span> <a name="line-60"></a> <span class='hs-conid'>Luminance</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x1909</span> <a name="line-61"></a> <span class='hs-conid'>LuminanceAlpha</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x190a</span> <a name="line-62"></a> <span class='hs-conid'>ABGR</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x8000</span> <a name="line-63"></a> <span class='hs-conid'>BGR</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x80E0</span> <a name="line-64"></a> <span class='hs-conid'>BGRA</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x80E1</span> <a name="line-65"></a> <span class='hs-conid'>CMYK</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x800C</span> <a name="line-66"></a> <span class='hs-conid'>CMYKA</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x800D</span> <a name="line-67"></a> <span class='hs-conid'>FourTwoTwo</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x80CC</span> <a name="line-68"></a> <span class='hs-conid'>FourTwoTwoRev</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x80CD</span> <a name="line-69"></a> <span class='hs-conid'>FourTwoTwoAverage</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x80CE</span> <a name="line-70"></a> <span class='hs-conid'>FourTwoTwoRevAverage</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x80CF</span> <a name="line-71"></a> <span class='hs-conid'>YCBCR422</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x85B9</span> <a name="line-72"></a> <span class='hs-conid'>DepthStencil</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>0x84f9</span> <a name="line-73"></a> <a name="line-74"></a><a name="unmarshalPixelFormat"></a><span class='hs-definition'>unmarshalPixelFormat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GLenum</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixelFormat</span> <a name="line-75"></a><span class='hs-definition'>unmarshalPixelFormat</span> <span class='hs-varid'>x</span> <a name="line-76"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1900</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ColorIndex</span> <a name="line-77"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1901</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>StencilIndex</span> <a name="line-78"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1902</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DepthComponent</span> <a name="line-79"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1903</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Red</span> <a name="line-80"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1904</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Green</span> <a name="line-81"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1905</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Blue</span> <a name="line-82"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1906</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Alpha</span> <a name="line-83"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1907</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RGB</span> <a name="line-84"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1908</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RGBA</span> <a name="line-85"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x1909</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Luminance</span> <a name="line-86"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x190a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LuminanceAlpha</span> <a name="line-87"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x8000</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ABGR</span> <a name="line-88"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x80E0</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BGR</span> <a name="line-89"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x80E1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BGRA</span> <a name="line-90"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x800C</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CMYK</span> <a name="line-91"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x800D</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CMYKA</span> <a name="line-92"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x80CC</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FourTwoTwo</span> <a name="line-93"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x80CD</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FourTwoTwoRev</span> <a name="line-94"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x80CE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FourTwoTwoAverage</span> <a name="line-95"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x80CF</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FourTwoTwoRevAverage</span> <a name="line-96"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x85B9</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>YCBCR422</span> <a name="line-97"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x84f9</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DepthStencil</span> <a name="line-98"></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'>"unmarshalPixelFormat: 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> </pre></body> </html>
