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<hr><h1>algo.h</h1><a href="algo_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000-2002 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#ifndef NL_ALGO_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_ALGO_H</font>
00028 <font class="preprocessor"></font>
00029 <font class="preprocessor">#include "<a class="code" href="types__nl_8h.html">nel/misc/types_nl.h</a>"</font>
00030 <font class="preprocessor">#include <vector></font>
00031 <font class="preprocessor">#include <string></font>
00032
00033
00034 <font class="keyword">namespace </font>NLMISC
00035 {
00036
00037 <font class="comment">// ***************************************************************************</font>
00053 <font class="comment"></font><font class="keyword">template</font> <<font class="keyword">class</font> T, <font class="keyword">class</font> U>
00054 T <a class="code" href="namespaceNLMISC.html#a205">computeBilinear</a>(<font class="keyword">const</font> T &v0, <font class="keyword">const</font> T &v1, <font class="keyword">const</font> T &v2, <font class="keyword">const</font> T &v3, <font class="keyword">const</font> U &<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keyword">const</font> U &<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>)
00055 {
00056 T h0 = <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * v3 + ((U) 1 - <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * v0;
00057 T h1 = <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * v2 + ((U) 1 - <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * v1;
00058 <font class="keywordflow">return</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a> * h1 + ((U) 1 - <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>) * h0;
00059 }
00060
00061 <font class="comment">// ***************************************************************************</font>
00068 <font class="comment"></font><font class="keyword">template</font><<font class="keyword">class</font> T>
00069 uint <a class="code" href="namespaceNLMISC.html#a206">searchLowerBound</a>(<font class="keyword">const</font> T *array, uint arraySize, <font class="keyword">const</font> T &key)
00070 {
00071 uint start=0;
00072 uint end= arraySize;
00073 <font class="comment">// find lower_bound by dichotomy</font>
00074 <font class="keywordflow">while</font>(end-1>start)
00075 {
00076 uint pivot= (end+start)/2;
00077 <font class="comment">// return the lower_bound, ie return first start with array[pivot]<=key</font>
00078 <font class="keywordflow">if</font>(array[pivot] <= key)
00079 start= pivot;
00080 <font class="keywordflow">else</font>
00081 end= pivot;
00082 }
00083
00084 <font class="keywordflow">return</font> start;
00085 }
00086
00087
00088 <font class="comment">// ***************************************************************************</font>
00095 <font class="comment"></font><font class="keyword">template</font><<font class="keyword">class</font> T>
00096 uint <a class="code" href="namespaceNLMISC.html#a206">searchLowerBound</a>(<font class="keyword">const</font> std::vector<T> &array, <font class="keyword">const</font> T &key)
00097 {
00098 uint size= array.size();
00099 <font class="keywordflow">if</font>(size==0)
00100 <font class="keywordflow">return</font> 0;
00101 <font class="keywordflow">else</font>
00102 <font class="keywordflow">return</font> <a class="code" href="namespaceNLMISC.html#a206">searchLowerBound</a>(&array[0], size, key);
00103 }
00104
00105
00106 <font class="comment">// ***************************************************************************</font>
00109 <font class="comment"></font><font class="keyword">static</font> <font class="keyword">inline</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNLMISC.html#a208">fastClamp8</a>(sint &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)
00110 {
00111 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00112 <font class="preprocessor"></font> <font class="comment">// clamp v in 0..255 (no cond jmp)</font>
00113 __asm
00114 {
00115 mov esi, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>
00116 mov eax, [esi]
00117 mov ebx, eax
00118 <font class="comment">// clamp to 0.</font>
00119 add eax, 0x80000000
00120 sbb ecx, ecx
00121 not ecx
00122 and ebx, ecx
00123 <font class="comment">// clamp to 255.</font>
00124 add eax, 0x7FFFFF00
00125 sbb ecx, ecx
00126 and ebx, 255
00127 and ecx, 255
00128 or ebx, ecx
00129 <font class="comment">// store</font>
00130 mov [esi], ebx
00131 }
00132 <font class="preprocessor">#else</font>
00133 <font class="preprocessor"></font> <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, 0, 255);
00134 <font class="preprocessor">#endif</font>
00135 <font class="preprocessor"></font>}
00136
00137
00138 <font class="comment">// ***************************************************************************</font>
00149 <font class="comment"></font><font class="keywordtype">bool</font> <a class="code" href="namespaceNLMISC.html#a209">testWildCard</a>(<font class="keyword">const</font> <font class="keywordtype">char</font> *strIn, <font class="keyword">const</font> <font class="keywordtype">char</font> *wildCard);
00150
00151
00152 <font class="comment">// ***************************************************************************</font>
00156 <font class="comment"></font><font class="keywordtype">void</font> <a class="code" href="namespaceNLMISC.html#a210">splitString</a>(<font class="keyword">const</font> std::string &str, <font class="keyword">const</font> std::string &separator, std::vector<std::string> &retList);
00157
00158
00159 } <font class="comment">// NLMISC</font>
00160
00161
00162 <font class="preprocessor">#endif // NL_ALGO_H</font>
00163 <font class="preprocessor"></font>
00164 <font class="comment">/* End of algo.h */</font>
</pre></div>
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