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| author | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
|---|---|---|
| committer | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
| commit | 0ea5fc66924303d1bf73ba283a383e2aadee02f2 (patch) | |
| tree | 2568e71a7ccc44ec23b8bb3f0ff97fb6bf2ed709 /docs/doxygen/nel/tess__face__priority__list_8cpp-source.html | |
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class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>tess_face_priority_list.cpp</h1><a href="tess__face__priority__list_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 +00007 <font class="comment">/* Copyright, 2001 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">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font> +00027 +00028 <font class="preprocessor">#include "<a class="code" href="tess__face__priority__list_8h.html">3d/tess_face_priority_list.h</a>"</font> +00029 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font> +00030 <font class="preprocessor">#include <math.h></font> +00031 <font class="preprocessor">#include "<a class="code" href="tessellation_8h.html">3d/tessellation.h</a>"</font> +00032 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font> +00033 +00034 +00035 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC; +00036 <font class="keyword">using</font> <font class="keyword">namespace </font>std; +00037 +00038 <font class="keyword">namespace </font>NL3D +00039 { +00040 +00041 <font class="comment">// ***************************************************************************</font> +00042 <font class="comment">// ***************************************************************************</font> +00043 <font class="comment">// CTessFacePListNode</font> +00044 <font class="comment">// ***************************************************************************</font> +00045 <font class="comment">// ***************************************************************************</font> +00046 +00047 +00048 <font class="comment">// ***************************************************************************</font> +<a name="l00049"></a><a class="code" href="classNL3D_1_1CTessFacePListNode.html#a4">00049</a> <font class="keywordtype">void</font> CTessFacePListNode::linkInPList(CTessFacePListNode &root) +00050 { +00051 <font class="comment">// unlink old list from me.</font> +00052 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>->_NextTessFaceInPList= <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>; +00053 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>->_PrecTessFaceInPList= <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>; +00054 +00055 <font class="comment">// link me to the list.</font> +00056 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>= &root; +00057 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>= root._NextTessFaceInPList; +00058 <font class="comment">// link the list to me.</font> +00059 root._NextTessFaceInPList->_PrecTessFaceInPList= <font class="keyword">this</font>; +00060 root._NextTessFaceInPList= <font class="keyword">this</font>; +00061 <font class="comment">/*</font> +00062 <font class="comment"> NB if list was empty (this, this), then</font> +00063 <font class="comment"> _PrecTessFaceInPList= &root</font> +00064 <font class="comment"> _NextTessFaceInPList= root._NextTessFaceInPList= &root !</font> +00065 <font class="comment"> root._NextTessFaceInPList->_PrecTessFaceInPList= this; => root._PrecTessFaceInPList= this</font> +00066 <font class="comment"> root._NextTessFaceInPList= this</font> +00067 <font class="comment"> */</font> +00068 } +00069 +00070 <font class="comment">// ***************************************************************************</font> +<a name="l00071"></a><a class="code" href="classNL3D_1_1CTessFacePListNode.html#a5">00071</a> <font class="keywordtype">void</font> CTessFacePListNode::unlinkInPList() +00072 { +00073 <font class="comment">/*</font> +00074 <font class="comment"> NB: if this node was empty (this, this), this is a No-Op.</font> +00075 <font class="comment"> If this node was the last of a list, then the root correctly get (&root, &root) after this.</font> +00076 <font class="comment"> */</font> +00077 <font class="comment">// unlink old list from me.</font> +00078 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>->_NextTessFaceInPList= <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>; +00079 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>->_PrecTessFaceInPList= <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>; +00080 +00081 <font class="comment">// reset to empty node.</font> +00082 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>= <font class="keyword">this</font>; +00083 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>= <font class="keyword">this</font>; +00084 } +00085 +00086 +00087 <font class="comment">// ***************************************************************************</font> +<a name="l00088"></a><a class="code" href="classNL3D_1_1CTessFacePListNode.html#a6">00088</a> <font class="keywordtype">void</font> CTessFacePListNode::appendPList(CTessFacePListNode &root) +00089 { +00090 <font class="comment">// If list to append is not empty.</font> +00091 <font class="keywordflow">if</font>( root._NextTessFaceInPList != &root ) +00092 { +00093 <font class="comment">// If we are empty.</font> +00094 <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>==<font class="keyword">this</font> ) +00095 { +00096 <font class="comment">// link the appendList to the root.</font> +00097 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>= root._PrecTessFaceInPList; +00098 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>= root._NextTessFaceInPList; +00099 <font class="comment">// link the root to the appendList.</font> +00100 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o0">_PrecTessFaceInPList</a>->_NextTessFaceInPList= <font class="keyword">this</font>; +00101 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>->_PrecTessFaceInPList= <font class="keyword">this</font>; +00102 } +00103 <font class="comment">// else bind first-last in the interval prec-next.</font> +00104 <font class="keywordflow">else</font> +00105 { +00106 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#a0">CTessFacePListNode</a> *first= root._NextTessFaceInPList; +00107 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#a0">CTessFacePListNode</a> *last= root._PrecTessFaceInPList; +00108 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#a0">CTessFacePListNode</a> *prec= <font class="keyword">this</font>; +00109 <a class="code" href="classNL3D_1_1CTessFacePListNode.html#a0">CTessFacePListNode</a> *next= <a class="code" href="classNL3D_1_1CTessFacePListNode.html#o1">_NextTessFaceInPList</a>; +00110 <font class="comment">// insert the appendList in our list.</font> +00111 next->_PrecTessFaceInPList= last; +00112 prec->_NextTessFaceInPList= first; +00113 <font class="comment">// insert our list in the appendList.</font> +00114 last->_NextTessFaceInPList= next; +00115 first->_PrecTessFaceInPList= prec; +00116 } +00117 +00118 <font class="comment">// clear input list.</font> +00119 root._PrecTessFaceInPList= &root; +00120 root._NextTessFaceInPList= &root; +00121 } +00122 } +00123 +00124 +00125 +00126 <font class="comment">// ***************************************************************************</font> +00127 <font class="comment">// ***************************************************************************</font> +00128 <font class="comment">// CTessFacePriorityList</font> +00129 <font class="comment">// ***************************************************************************</font> +00130 <font class="comment">// ***************************************************************************</font> +00131 +00132 +00133 <font class="comment">// ***************************************************************************</font> +<a name="l00134"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a0">00134</a> CTessFacePriorityList::CTessFacePriorityList() +00135 { +00136 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o1">_OODistStep</a>= 1; +00137 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>= 0; +00138 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o3">_MaskEntries</a>= 0; +00139 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o4">_EntryModStart</a>= 0; +00140 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>= 0; +00141 } +00142 +00143 <font class="comment">// ***************************************************************************</font> +<a name="l00144"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a1">00144</a> CTessFacePriorityList::~CTessFacePriorityList() +00145 { +00146 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a3">clear</a>(); +00147 } +00148 +00149 <font class="comment">// ***************************************************************************</font> +<a name="l00150"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a2">00150</a> <font class="keywordtype">void</font> CTessFacePriorityList::init(<font class="keywordtype">float</font> distStep, uint numEntries, <font class="keywordtype">float</font> distMaxMod, uint numQuadrant) +00151 { +00152 uint i; +00153 <a class="code" href="debug_8h.html#a6">nlassert</a>(distStep>0); +00154 <a class="code" href="debug_8h.html#a6">nlassert</a>(numEntries>0 && <a class="code" href="namespaceNLMISC.html#a225">isPowerOf2</a>(numEntries)); +00155 <a class="code" href="debug_8h.html#a6">nlassert</a>(distMaxMod<1); +00156 <a class="code" href="debug_8h.html#a6">nlassert</a>(numQuadrant==0 || (numQuadrant>=4 && <a class="code" href="namespaceNLMISC.html#a225">isPowerOf2</a>(numQuadrant)) ); +00157 +00158 <font class="comment">// clear the prioriy list before.</font> +00159 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a3">clear</a>(); +00160 +00161 <font class="comment">// setup</font> +00162 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o1">_OODistStep</a>= 1.0f / distStep; +00163 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>= numEntries; +00164 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o3">_MaskEntries</a>= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>-1; +00165 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o4">_EntryModStart</a>= (uint)ceil(distMaxMod * <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>); +00166 <a class="code" href="namespaceNLMISC.html#a215">NLMISC::clamp</a>(<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o4">_EntryModStart</a>, 0U, <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>-1); +00167 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>= numQuadrant; +00168 +00169 <font class="comment">// Build the Rolling tables.</font> +00170 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>.resize(1+<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>); +00171 <font class="keywordflow">for</font>(i=0;i<<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>.size();i++) +00172 { +00173 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[i].init(<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>); +00174 <font class="comment">// setup the quadrant direction. NB: 0 not used since "Direction less rolling table"</font> +00175 <font class="keywordflow">if</font>(i>=1) +00176 { +00177 uint idx= i-1; +00178 <font class="comment">// split evenly the plane with direction.</font> +00179 <font class="keywordtype">float</font> angle= float(2*<a class="code" href="namespaceNLMISC.html#a7">Pi</a>*idx)/<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>; +00180 CMatrix mat; +00181 mat.rotateZ(angle); +00182 <font class="comment">// setup the vector</font> +00183 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[i].QuadrantDirection= mat.getJ(); +00184 } +00185 } +00186 +00187 <font class="comment">// Build Quarter Selection. In is in CCW order. Out: see selectQuadrant()</font> +00188 <font class="keyword">const</font> uint quarterLut[4]= {1,3,2,0}; +00189 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o6">_MaskQuadrant</a>= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>-1; +00190 <font class="keywordflow">for</font>(i=0;i<4;i++) +00191 { +00192 <font class="comment">// Re-Order for faster ASM acces. see selectQuadrant()</font> +00193 uint idx= quarterLut[i]; +00194 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o7">_QuarterQuadrantStart</a>[idx]= i*<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>/4; +00195 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o8">_QuarterQuadrantEnd</a>[idx]= 1+ (i+1)*<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>/4; +00196 } +00197 +00198 } +00199 +00200 <font class="comment">// ***************************************************************************</font> +<a name="l00201"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a3">00201</a> <font class="keywordtype">void</font> CTessFacePriorityList::clear() +00202 { +00203 <font class="comment">// just clear all the rolling tables.</font> +00204 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>.clear(); +00205 } +00206 +00207 +00208 <font class="comment">// ***************************************************************************</font> +<a name="l00209"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a4">00209</a> uint CTessFacePriorityList::selectQuadrant(<font class="keyword">const</font> CVector &direction) +00210 { +00211 <font class="comment">// if numQuadrants=0, ret 0.</font> +00212 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o5">_NumQuadrant</a>==0) +00213 <font class="keywordflow">return</font> 0; +00214 +00215 +00216 <font class="comment">// select the quarter.</font> +00217 uint quarterId; +00218 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00219 <font class="preprocessor"></font> __asm +00220 { +00221 mov esi, direction +00222 mov eax, [esi]direction.y +00223 mov ebx, [esi]direction.x +00224 <font class="comment">// read the sign</font> +00225 and eax, 0x80000000 +00226 and ebx, 0x80000000 +00227 <font class="comment">// set the bit</font> +00228 shr eax, 30 +00229 shr ebx, 31 +00230 <font class="comment">// assemble</font> +00231 or eax, ebx +00232 mov quarterId, eax +00233 } +00234 <font class="preprocessor">#else</font> +00235 <font class="preprocessor"></font> <font class="keywordflow">if</font>(direction.y>0) +00236 { +00237 <font class="keywordflow">if</font>(direction.x>0) quarterId= 0; +00238 <font class="keywordflow">else</font> quarterId= 1; +00239 } +00240 <font class="keywordflow">else</font> +00241 { +00242 <font class="keywordflow">if</font>(direction.x>0) quarterId= 2; +00243 <font class="keywordflow">else</font> quarterId= 3; +00244 } +00245 <font class="preprocessor">#endif</font> +00246 <font class="preprocessor"></font> +00247 <font class="comment">// Run only the quadrants of the associated quarter.</font> +00248 uint quadrantStart= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o7">_QuarterQuadrantStart</a>[quarterId]; +00249 uint quadrantEnd= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o8">_QuarterQuadrantEnd</a>[quarterId]; +00250 +00251 +00252 <font class="comment">// For all quadrants of the quarter, return the best direction</font> +00253 <font class="keywordtype">float</font> bestDirPs= -FLT_MAX; +00254 uint bestQuadrant= 0; +00255 <font class="keywordflow">for</font>(uint i=quadrantStart;i<quadrantEnd;i++) +00256 { +00257 <font class="comment">// get the quadrant Id. Must mask for last (0). And Start at 1 in the _RollingTables.</font> +00258 uint quadrantId= (i&<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o6">_MaskQuadrant</a>)+1; +00259 <font class="comment">// Test with this quadrant</font> +00260 <font class="keywordtype">float</font> ps= direction*<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[i].QuadrantDirection; +00261 <font class="keywordflow">if</font>(ps>bestDirPs) +00262 { +00263 bestDirPs= ps; +00264 bestQuadrant= i; +00265 } +00266 } +00267 +00268 <font class="keywordflow">return</font> bestQuadrant; +00269 } +00270 +00271 +00272 <font class="comment">// ***************************************************************************</font> +<a name="l00273"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a6">00273</a> <font class="keywordtype">void</font> CTessFacePriorityList::insert(uint quadrantId, <font class="keywordtype">float</font> distance, CTessFace *<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>) +00274 { +00275 <font class="comment">// plist must be inited.</font> +00276 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>>0 && quadrantId<<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>.size()); +00277 +00278 <font class="comment">// First, setup in our basis.</font> +00279 distance*= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o1">_OODistStep</a>; +00280 +00281 <font class="comment">// Insert int the good quadrant</font> +00282 CRollingTable &rollTable= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[quadrantId]; +00283 +00284 <font class="comment">// Then, look where we must insert it.</font> +00285 sint idInsert; +00286 <font class="keywordflow">if</font>(distance<=0) +00287 idInsert= 0; +00288 <font class="keywordflow">else</font> +00289 { +00290 <font class="comment">// Must insert so we can't miss it when a shift occurs (=> floor).</font> +00291 idInsert= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(distance + rollTable.Remainder); +00292 } +00293 idInsert= std::max(0, idInsert); +00294 +00295 <font class="comment">// Manage Mod.</font> +00296 <font class="comment">// If the element to insert must be inserted at distance > distMax.</font> +00297 <font class="keywordflow">if</font>(idInsert>(sint)<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o3">_MaskEntries</a>) +00298 { +00299 <font class="comment">// Compute number of entries to apply the mod.</font> +00300 uint nMod= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a> - <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o4">_EntryModStart</a>; +00301 <font class="comment">// Of how many entries are we too far.</font> +00302 idInsert= idInsert - <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o3">_MaskEntries</a>; +00303 <font class="comment">// Then loop in the interval [_EntryModStart, _NEntries[.</font> +00304 idInsert= idInsert % nMod; +00305 idInsert= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o4">_EntryModStart</a> + idInsert; +00306 } +00307 +00308 <font class="comment">// insert in the Roll Table.</font> +00309 rollTable.insertInRollTable(idInsert, <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>); +00310 } +00311 +00312 +00313 <font class="comment">// ***************************************************************************</font> +<a name="l00314"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a7">00314</a> <font class="keywordtype">void</font> CTessFacePriorityList::shift(<font class="keyword">const</font> CVector &direction, CTessFacePListNode &pulledElements) +00315 { +00316 <font class="comment">// plist must be inited.</font> +00317 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>>0); +00318 +00319 pulledElements.unlinkInPList(); +00320 +00321 <font class="comment">// Shift all the rolling tables</font> +00322 <font class="keywordflow">for</font>(uint i=0;i<<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>.size();i++) +00323 { +00324 CRollingTable &rollTable= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[i]; +00325 <font class="keywordtype">float</font> shiftDistance; +00326 +00327 <font class="comment">// if quadrant 0, Direction less => get distance with Euler norm.</font> +00328 <font class="keywordflow">if</font>(i==0) +00329 { +00330 shiftDistance= direction.norm(); +00331 } +00332 <font class="comment">// Else compute the effective distance we run to the plane.</font> +00333 <font class="keywordflow">else</font> +00334 { +00335 shiftDistance= direction*rollTable.QuadrantDirection; +00336 <font class="comment">// For now, just clamp, but may be interesting to shift Back the rolling table !!</font> +00337 shiftDistance= max(0.f, shiftDistance); +00338 } +00339 +00340 <font class="comment">// First, setup in our basis.</font> +00341 shiftDistance*= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o1">_OODistStep</a>; +00342 +00343 <font class="comment">// at least, fill OUT with elements of entry 0.</font> +00344 <font class="comment">// For all elements of the entry 0 of , pull them, and insert in result list.</font> +00345 pulledElements.appendPList(rollTable.getRollTableEntry(0)); +00346 +00347 <font class="comment">// shift.</font> +00348 rollTable.Remainder+= shiftDistance; +00349 <font class="comment">// If Remainder>=1, it means that we must shift the rolling table, and get elements deleted.</font> +00350 uint entryShift= (uint)floor(rollTable.Remainder); +00351 rollTable.Remainder= rollTable.Remainder - entryShift; +00352 +00353 <font class="comment">// shift full array??</font> +00354 <font class="keywordflow">if</font>( entryShift >= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>) +00355 { +00356 entryShift= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>; +00357 <font class="comment">// The entire array is pulled, _Remainder should get a good value.</font> +00358 rollTable.Remainder= 0; +00359 } +00360 +00361 <font class="comment">// If some real shift, do it.</font> +00362 rollTable.shiftEntries(entryShift, pulledElements); +00363 } +00364 } +00365 +00366 +00367 <font class="comment">// ***************************************************************************</font> +<a name="l00368"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList.html#a8">00368</a> <font class="keywordtype">void</font> CTessFacePriorityList::shiftAll(CTessFacePListNode &pulledElements) +00369 { +00370 <font class="comment">// plist must be inited.</font> +00371 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>>0); +00372 +00373 pulledElements.unlinkInPList(); +00374 +00375 <font class="comment">// Do it for all rolling tables.</font> +00376 <font class="keywordflow">for</font>(uint i=0;i<<a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>.size();i++) +00377 { +00378 <font class="comment">// The entire array is pulled, _Remainder should get a good value.</font> +00379 uint entryShift= <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#o2">_NEntries</a>; +00380 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[i].Remainder= 0; +00381 +00382 <font class="comment">// shift the entire array.</font> +00383 <a class="code" href="classNL3D_1_1CTessFacePriorityList.html#z818_0">_RollingTables</a>[i].shiftEntries(entryShift, pulledElements); +00384 } +00385 } +00386 +00387 +00388 <font class="comment">// ***************************************************************************</font> +00389 <font class="comment">// ***************************************************************************</font> +00390 <font class="comment">// Rolling table.</font> +00391 <font class="comment">// ***************************************************************************</font> +00392 <font class="comment">// ***************************************************************************</font> +00393 +00394 <font class="comment">// ***************************************************************************</font> +<a name="l00395"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a0">00395</a> CTessFacePriorityList::CRollingTable::CRollingTable() +00396 { +00397 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>= 0; +00398 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o2">_NEntries</a>= 0; +00399 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o3">_MaskEntries</a>= 0; +00400 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#m1">Remainder</a>= 0; +00401 } +00402 +00403 <font class="comment">// ***************************************************************************</font> +<a name="l00404"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a1">00404</a> CTessFacePriorityList::CRollingTable::~CRollingTable() +00405 { +00406 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a6">clearRollTable</a>(); +00407 } +00408 +00409 +00410 <font class="comment">// ***************************************************************************</font> +<a name="l00411"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a2">00411</a> <font class="keywordtype">void</font> CTessFacePriorityList::CRollingTable::init(uint numEntries) +00412 { +00413 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>= 0; +00414 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o2">_NEntries</a>= numEntries; +00415 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o3">_MaskEntries</a>= <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o2">_NEntries</a>-1; +00416 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#m1">Remainder</a>= 0; +00417 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o0">_Entries</a>.resize(numEntries); +00418 } +00419 +00420 +00421 <font class="comment">// ***************************************************************************</font> +<a name="l00422"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a3">00422</a> <font class="keywordtype">void</font> CTessFacePriorityList::CRollingTable::insertInRollTable(uint entry, CTessFace *<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>) +00423 { +00424 CTessFacePListNode &root= <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o0">_Entries</a>[ (entry + <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>) & <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o3">_MaskEntries</a> ]; +00425 +00426 <font class="comment">// Insert into list.</font> +00427 <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>->linkInPList(root); +00428 } +00429 +00430 <font class="comment">// ***************************************************************************</font> +<a name="l00431"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a4">00431</a> CTessFacePListNode &CTessFacePriorityList::CRollingTable::getRollTableEntry(uint entry) +00432 { +00433 CTessFacePListNode &root= <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o0">_Entries</a>[ (entry + <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>) & <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o3">_MaskEntries</a> ]; +00434 <font class="keywordflow">return</font> root; +00435 } +00436 +00437 <font class="comment">// ***************************************************************************</font> +<a name="l00438"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#c0">00438</a> <font class="keywordtype">void</font> CTessFacePriorityList::CRollingTable::clearRollTableEntry(uint entry) +00439 { +00440 CTessFacePListNode &root= <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o0">_Entries</a>[ (entry + <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>) & <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o3">_MaskEntries</a> ]; +00441 +00442 <font class="comment">// clear all the list.</font> +00443 <font class="keywordflow">while</font>( root.nextInPList() != &root ) +00444 { +00445 <font class="comment">// unlink from list</font> +00446 CTessFacePListNode *node= root.nextInPList(); +00447 node->unlinkInPList(); +00448 } +00449 } +00450 +00451 <font class="comment">// ***************************************************************************</font> +<a name="l00452"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a5">00452</a> <font class="keywordtype">void</font> CTessFacePriorityList::CRollingTable::shiftRollTable(uint shiftEntry) +00453 { +00454 <font class="comment">// delete all elements shifted.</font> +00455 <font class="keywordflow">for</font>(uint i=0; i<shiftEntry; i++) +00456 { +00457 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#c0">clearRollTableEntry</a>(i); +00458 } +00459 <font class="comment">// shift to right the ptr of entries.</font> +00460 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>+= shiftEntry; +00461 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>= <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a> & <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o3">_MaskEntries</a>; +00462 } +00463 +00464 <font class="comment">// ***************************************************************************</font> +<a name="l00465"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a6">00465</a> <font class="keywordtype">void</font> CTessFacePriorityList::CRollingTable::clearRollTable() +00466 { +00467 <font class="keywordflow">for</font>(uint i=0; i<<a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o2">_NEntries</a>; i++) +00468 { +00469 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#c0">clearRollTableEntry</a>(i); +00470 } +00471 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#o1">_EntryStart</a>= 0; +00472 <font class="comment">// For convenience only (not really usefull).</font> +00473 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#m1">Remainder</a>= 0; +00474 } +00475 +00476 <font class="comment">// ***************************************************************************</font> +<a name="l00477"></a><a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a7">00477</a> <font class="keywordtype">void</font> CTessFacePriorityList::CRollingTable::shiftEntries(uint entryShift, CTessFacePListNode &pulledElements) +00478 { +00479 <font class="keywordflow">if</font>(entryShift>0) +00480 { +00481 <font class="comment">// before shifting the roll Table, fill pulledElements.</font> +00482 <font class="keywordflow">for</font>(uint i=0; i<entryShift; i++) +00483 { +00484 <font class="comment">// For all elements of the ith entry, pull them and isnert in result list.</font> +00485 pulledElements.appendPList(<a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a4">getRollTableEntry</a>(i)); +00486 } +00487 +00488 <font class="comment">// shift the roll Table. lists are already empty.</font> +00489 <a class="code" href="classNL3D_1_1CTessFacePriorityList_1_1CRollingTable.html#a5">shiftRollTable</a>(entryShift); +00490 } +00491 } +00492 +00493 +00494 +00495 +00496 } <font class="comment">// NL3D</font> +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |