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<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>
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