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<h1>csplugincommon/opengl/glhelper.h</h1><a href="glhelper_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">  Copyright (C) 2002 by Marten Svanfeldt</span>
<a name="l00003"></a>00003 <span class="comment">                        Anders Stenberg</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">  This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment">  modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment">  License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment">  version 2 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment">  This library is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment">  but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment">  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment">  Library General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"></span>
<a name="l00015"></a>00015 <span class="comment">  You should have received a copy of the GNU Library General Public</span>
<a name="l00016"></a>00016 <span class="comment">  License along with this library; if not, write to the Free</span>
<a name="l00017"></a>00017 <span class="comment">  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019 
<a name="l00020"></a>00020 <span class="preprocessor">#ifndef __CS_CSPLUGINCOMMON_OPENGL_GLHELPER_H__</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define __CS_CSPLUGINCOMMON_OPENGL_GLHELPER_H__</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="matrix3_8h.html" title="3x3 matrix.">csgeom/matrix3.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="transfrm_8h.html" title="Transformation from one coordinate system to another.">csgeom/transfrm.h</a>"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="vector3_8h.html" title="3D vector.">csgeom/vector3.h</a>"</span>
<a name="l00030"></a>00030 
<a name="l00034"></a>00034 
<a name="l00035"></a><a class="code" href="group__plugincommon.html#g092bd65b19184dfa3a3d4d72223ea9e1">00035</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__plugincommon.html#g092bd65b19184dfa3a3d4d72223ea9e1" title="Make an OpenGL matrix from a CS transform.">makeGLMatrix</a> (<span class="keyword">const</span> <a class="code" href="classcsReversibleTransform.html" title="A class which defines a reversible transformation from one coordinate system to another...">csReversibleTransform</a>&amp; t, 
<a name="l00036"></a>00036   <span class="keywordtype">float</span> matrix[16], <span class="keywordtype">bool</span> rowMajor = <span class="keyword">false</span>)
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038   <span class="keyword">const</span> <a class="code" href="classcsMatrix3.html" title="A 3x3 matrix.">csMatrix3</a> &amp;orientation = t.<a class="code" href="classcsTransform.html#6b9dc087bd425a9bc8fe1c35a127e7b3" title="Get &amp;#39;other&amp;#39; to &amp;#39;this&amp;#39; transformation matrix.">GetO2T</a>();
<a name="l00039"></a>00039   <span class="keyword">const</span> <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a> &amp;translation = t.<a class="code" href="classcsTransform.html#ddaca558caeb0026f10074a43192a6b3" title="Get &amp;#39;other&amp;#39; to &amp;#39;this&amp;#39; translation.">GetO2TTranslation</a>();
<a name="l00040"></a>00040 
<a name="l00041"></a>00041   <span class="keywordtype">int</span> row, col;
<a name="l00042"></a>00042   <span class="keywordflow">if</span> (rowMajor)
<a name="l00043"></a>00043   {
<a name="l00044"></a>00044     col = 1; row = 4;
<a name="l00045"></a>00045   }
<a name="l00046"></a>00046   <span class="keywordflow">else</span>
<a name="l00047"></a>00047   {
<a name="l00048"></a>00048     col = 4; row = 1;
<a name="l00049"></a>00049   }
<a name="l00050"></a>00050 
<a name="l00051"></a>00051   matrix[col*0+row*0] = orientation.<a class="code" href="classcsMatrix3.html#7abb8769eb9f1110a860dd1cbe1ebc83">m11</a>;
<a name="l00052"></a>00052   matrix[col*0+row*1] = orientation.<a class="code" href="classcsMatrix3.html#03f36748a74f2452374ee7aa33a047c1">m12</a>;
<a name="l00053"></a>00053   matrix[col*0+row*2] = orientation.<a class="code" href="classcsMatrix3.html#6cc4385d82d3f6c6161d7a33324d585a">m13</a>;
<a name="l00054"></a>00054   matrix[col*0+row*3] = 0.0f;
<a name="l00055"></a>00055 
<a name="l00056"></a>00056   matrix[col*1+row*0] = orientation.<a class="code" href="classcsMatrix3.html#5e4b3835d5a06ef37011d201f1b3580f">m21</a>;
<a name="l00057"></a>00057   matrix[col*1+row*1] = orientation.<a class="code" href="classcsMatrix3.html#8263527f4f5327dd8b7c553852356c24">m22</a>;
<a name="l00058"></a>00058   matrix[col*1+row*2] = orientation.<a class="code" href="classcsMatrix3.html#67476f669601bac648b0b908f9998560">m23</a>;
<a name="l00059"></a>00059   matrix[col*1+row*3] = 0.0f;
<a name="l00060"></a>00060 
<a name="l00061"></a>00061   matrix[col*2+row*0] = orientation.<a class="code" href="classcsMatrix3.html#6466a3ad591b333c46d3bd164c371167">m31</a>;
<a name="l00062"></a>00062   matrix[col*2+row*1] = orientation.<a class="code" href="classcsMatrix3.html#1c9bd8515840fb4e61ae72ea7af5927c">m32</a>;
<a name="l00063"></a>00063   matrix[col*2+row*2] = orientation.<a class="code" href="classcsMatrix3.html#651ffebc45af74241ec8fe1294a4f6d0">m33</a>;
<a name="l00064"></a>00064   matrix[col*2+row*3] = 0.0f;
<a name="l00065"></a>00065 
<a name="l00066"></a>00066   matrix[col*3+row*0] = translation.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a>;
<a name="l00067"></a>00067   matrix[col*3+row*1] = translation.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a>;
<a name="l00068"></a>00068   matrix[col*3+row*2] = translation.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a>;
<a name="l00069"></a>00069   matrix[col*3+row*3] = 1.0f;
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 
<a name="l00073"></a><a class="code" href="group__plugincommon.html#g4ebb32ed3cb54c814923e4b6c1fa9e58">00073</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__plugincommon.html#g092bd65b19184dfa3a3d4d72223ea9e1" title="Make an OpenGL matrix from a CS transform.">makeGLMatrix</a> (<span class="keyword">const</span> <a class="code" href="classcsMatrix3.html" title="A 3x3 matrix.">csMatrix3</a>&amp; m, <span class="keywordtype">float</span> matrix[16], 
<a name="l00074"></a>00074                                  <span class="keywordtype">bool</span> rowMajor = <span class="keyword">false</span>)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076   <span class="keywordtype">int</span> row, col;
<a name="l00077"></a>00077   <span class="keywordflow">if</span> (rowMajor)
<a name="l00078"></a>00078   {
<a name="l00079"></a>00079     col = 1; row = 4;
<a name="l00080"></a>00080   }
<a name="l00081"></a>00081   <span class="keywordflow">else</span>
<a name="l00082"></a>00082   {
<a name="l00083"></a>00083     col = 4; row = 1;
<a name="l00084"></a>00084   }
<a name="l00085"></a>00085 
<a name="l00086"></a>00086   matrix[col*0+row*0] = m.<a class="code" href="classcsMatrix3.html#7abb8769eb9f1110a860dd1cbe1ebc83">m11</a>;
<a name="l00087"></a>00087   matrix[col*0+row*1] = m.<a class="code" href="classcsMatrix3.html#03f36748a74f2452374ee7aa33a047c1">m12</a>;
<a name="l00088"></a>00088   matrix[col*0+row*2] = m.<a class="code" href="classcsMatrix3.html#6cc4385d82d3f6c6161d7a33324d585a">m13</a>;
<a name="l00089"></a>00089   matrix[col*0+row*3] = 0.0f;
<a name="l00090"></a>00090 
<a name="l00091"></a>00091   matrix[col*1+row*0] = m.<a class="code" href="classcsMatrix3.html#5e4b3835d5a06ef37011d201f1b3580f">m21</a>;
<a name="l00092"></a>00092   matrix[col*1+row*1] = m.<a class="code" href="classcsMatrix3.html#8263527f4f5327dd8b7c553852356c24">m22</a>;
<a name="l00093"></a>00093   matrix[col*1+row*2] = m.<a class="code" href="classcsMatrix3.html#67476f669601bac648b0b908f9998560">m23</a>;
<a name="l00094"></a>00094   matrix[col*1+row*3] = 0.0f;
<a name="l00095"></a>00095 
<a name="l00096"></a>00096   matrix[col*2+row*0] = m.<a class="code" href="classcsMatrix3.html#6466a3ad591b333c46d3bd164c371167">m31</a>;
<a name="l00097"></a>00097   matrix[col*2+row*1] = m.<a class="code" href="classcsMatrix3.html#1c9bd8515840fb4e61ae72ea7af5927c">m32</a>;
<a name="l00098"></a>00098   matrix[col*2+row*2] = m.<a class="code" href="classcsMatrix3.html#651ffebc45af74241ec8fe1294a4f6d0">m33</a>;
<a name="l00099"></a>00099   matrix[col*2+row*3] = 0.0f;
<a name="l00100"></a>00100 
<a name="l00101"></a>00101   matrix[col*3+row*0] = 0.0f;
<a name="l00102"></a>00102   matrix[col*3+row*1] = 0.0f;
<a name="l00103"></a>00103   matrix[col*3+row*2] = 0.0f;
<a name="l00104"></a>00104   matrix[col*3+row*3] = 1.0f;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 
<a name="l00109"></a>00109 <span class="preprocessor">#endif</span>
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