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<hr><h1>mesh_block_manager.cpp</h1><a href="mesh__block__manager_8cpp.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">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="mesh__block__manager_8h.html">3d/mesh_block_manager.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="hierarchical__timer_8h.html">nel/misc/hierarchical_timer.h</a>"</font>
00030 
00031 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00032 
00033 <font class="keyword">namespace </font>NL3D 
00034 {
00035 
00036 
<a name="l00037"></a><a class="code" href="mesh__block__manager_8cpp.html#a0">00037</a> <font class="preprocessor">#define NL3D_MBM_MAX_VBHEAP                     255</font>
<a name="l00038"></a><a class="code" href="mesh__block__manager_8cpp.html#a1">00038</a> <font class="preprocessor"></font><font class="preprocessor">#define NL3D_MBM_VBHEAP_MESH_SHIFT      8</font>
<a name="l00039"></a><a class="code" href="mesh__block__manager_8cpp.html#a2">00039</a> <font class="preprocessor"></font><font class="preprocessor">#define NL3D_MBM_VBHEAP_MESH_MASK       0xFFFFFF00</font>
<a name="l00040"></a><a class="code" href="mesh__block__manager_8cpp.html#a3">00040</a> <font class="preprocessor"></font><font class="preprocessor">#define NL3D_MBM_VBHEAP_HEAP_MASK       0x000000FF</font>
00041 <font class="preprocessor"></font>
00042 
00043 <font class="comment">// ***************************************************************************</font>
<a name="l00044"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#a0">00044</a> CMeshBlockManager::CMeshBlockManager()
00045 {
00046         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.Driver= NULL;
00047         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.Scene= NULL;
00048         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.RenderTrav= NULL;
00049 
00050         <font class="comment">// Allocate at least the 0th heap</font>
00051         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.resize(1);
00052         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[0]= <font class="keyword">new</font> CVBHeapBlock;
00053         <font class="comment">// some reserve, avoiding first reallocation.</font>
00054         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[0]-&gt;RdrInstances.reserve(100);
00055         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[0]-&gt;RdrMeshGeoms.reserve(100);
00056 }
00057 
00058 <font class="comment">// ***************************************************************************</font>
<a name="l00059"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#a1">00059</a> CMeshBlockManager::~CMeshBlockManager()
00060 {
00061         <font class="comment">// must release any user heap.</font>
00062         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#z584_0">releaseVBHeaps</a>();
00063         <font class="comment">// Release the 0th one.</font>
00064         <font class="keyword">delete</font> <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[0];
00065         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.clear();
00066 }
00067 
00068 <font class="comment">// ***************************************************************************</font>
<a name="l00069"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#a2">00069</a> <font class="keywordtype">void</font>                    CMeshBlockManager::addInstance(IMeshGeom *meshGeom, CMeshBaseInstance *inst, <font class="keywordtype">float</font> polygonCount)
00070 {
00071         <font class="comment">// If the meshGeom has never been added to the manager, may do some precalc</font>
00072         <font class="keywordflow">if</font>(meshGeom-&gt;_MeshBlockManager==NULL)
00073         {
00074                 <font class="comment">// Fill </font>
00075                 meshGeom-&gt;_MeshBlockManager= <font class="keyword">this</font>;
00076                 <font class="comment">// try to fit the meshGeom in one of our VBHeap.</font>
00077                 <a class="code" href="classNL3D_1_1CMeshBlockManager.html#c0">allocateMeshVBHeap</a>(meshGeom);
00078         }
00079 
00080         <font class="comment">// TestYoyo</font>
00081         <font class="comment">/*extern uint   TEMP_Yoyo_NInstVBHeap;</font>
00082 <font class="comment">        extern uint     TEMP_Yoyo_NInstNoVBHeap;</font>
00083 <font class="comment">        if( meshGeom-&gt;_MeshVBHeapId &amp; NL3D_MBM_VBHEAP_HEAP_MASK )</font>
00084 <font class="comment">                TEMP_Yoyo_NInstVBHeap++; </font>
00085 <font class="comment">        else</font>
00086 <font class="comment">                TEMP_Yoyo_NInstNoVBHeap++;*/</font>
00087         <font class="comment">// End TestYoyo</font>
00088 
00089         <font class="comment">// Choose the HeapBlock to fit in.</font>
00090         CVBHeapBlock    *hb= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[meshGeom-&gt;_MeshVBHeapId &amp; <a class="code" href="mesh__block__manager_8cpp.html#a3">NL3D_MBM_VBHEAP_HEAP_MASK</a>];
00091 
00092         <font class="comment">// If the mesh geom is not added to this manager, add it.</font>
00093         <font class="keywordflow">if</font>(meshGeom-&gt;_RootInstanceId==-1)
00094         {
00095                 hb-&gt;RdrMeshGeoms.push_back(meshGeom);
00096         }
00097 
00098         <font class="comment">// setup the instance.</font>
00099         CInstanceInfo           instInfo;
00100         instInfo.MeshGeom= meshGeom;
00101         instInfo.MBI= inst;
00102         instInfo.PolygonCount= polygonCount;
00103 
00104         <font class="comment">// link to the head of the list.</font>
00105         instInfo.NextInstance= meshGeom-&gt;_RootInstanceId;
00106         meshGeom-&gt;_RootInstanceId= hb-&gt;RdrInstances.size();
00107 
00108         <font class="comment">// add this instance</font>
00109         hb-&gt;RdrInstances.push_back(instInfo);
00110 
00111 }
00112 
00113 <font class="comment">// ***************************************************************************</font>
<a name="l00114"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#a3">00114</a> <font class="keywordtype">void</font>                    CMeshBlockManager::flush(IDriver *drv, CScene *scene, CRenderTrav *renderTrav)
00115 {
00116         uint    i,j;
00117 
00118         <a class="code" href="hierarchical__timer_8h.html#a4">H_AUTO</a>( NL3D_MeshBlockManager );
00119 
00120         <font class="comment">// setup the manager</font>
00121         <a class="code" href="debug_8h.html#a6">nlassert</a>(drv &amp;&amp; scene &amp;&amp; renderTrav);
00122         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.Driver= drv;
00123         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.Scene= scene;
00124         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.RenderTrav= renderTrav;
00125         
00126 
00127         <font class="comment">// render</font>
00128         <font class="comment">//==========</font>
00129 
00130         <font class="comment">// sort by Heap first =&gt; small setup of VBs.</font>
00131         <font class="keywordflow">for</font>(j=0; j&lt;<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.size();j++)
00132         {
00133                 CVBHeapBlock    *hb= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[j];
00134                 <font class="comment">// if not the special 0th heap, must activate VB.</font>
00135                 <font class="keywordflow">if</font>(j==0)
00136                 {
00137                         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.RenderThroughVBHeap= <font class="keyword">false</font>;
00138                 }
00139                 <font class="keywordflow">else</font>
00140                 {
00141                         <font class="comment">// set to true =&gt; avoid mesh to setup their own VB.</font>
00142                         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>.RenderThroughVBHeap= <font class="keyword">true</font>;
00143                         <font class="comment">// activate current VB in driver</font>
00144                         hb-&gt;VBHeap.activate();
00145                 }
00146 
00147 
00148                 <font class="comment">// Always sort by MeshGeom, in this heap</font>
00149                 <font class="keywordflow">for</font>(i=0; i&lt;hb-&gt;RdrMeshGeoms.size();i++)
00150                 {
00151                         <font class="comment">// render the meshGeom and his instances</font>
00152                         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#c1">render</a>(hb-&gt;RdrMeshGeoms[i], hb-&gt;RdrInstances);
00153                 }
00154         }
00155 
00156 
00157         <font class="comment">// reset.</font>
00158         <font class="comment">//==========</font>
00159 
00160         <font class="comment">// For all vb heaps</font>
00161         <font class="keywordflow">for</font>(j=0; j&lt;<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.size();j++)
00162         {
00163                 CVBHeapBlock    *hb= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[j];
00164 
00165                 <font class="comment">// Parse all MehsGeoms, and flag them as Not Added to me</font>
00166                 <font class="keywordflow">for</font>(i=0; i&lt;hb-&gt;RdrMeshGeoms.size();i++)
00167                 {
00168                         hb-&gt;RdrMeshGeoms[i]-&gt;_RootInstanceId= -1;
00169                 }
00170 
00171                 <font class="comment">// clear rdr arrays</font>
00172                 hb-&gt;RdrInstances.clear();
00173                 hb-&gt;RdrMeshGeoms.clear();
00174         }
00175 }
00176 
00177 
00178 <font class="comment">// ***************************************************************************</font>
<a name="l00179"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#c1">00179</a> <font class="keywordtype">void</font>                    CMeshBlockManager::render(IMeshGeom *meshGeom, std::vector&lt;CInstanceInfo&gt; &amp;rdrInstances)
00180 {
00181         <font class="comment">// TestYoyo</font>
00182         <font class="comment">/*extern uint TEMP_Yoyo_NMeshVBHeap;</font>
00183 <font class="comment">        extern uint TEMP_Yoyo_NMeshNoVBHeap;</font>
00184 <font class="comment">        if( _RenderCtx.RenderThroughVBHeap )</font>
00185 <font class="comment">                TEMP_Yoyo_NMeshVBHeap++;</font>
00186 <font class="comment">        else</font>
00187 <font class="comment">                TEMP_Yoyo_NMeshNoVBHeap++;*/</font>
00188         <font class="comment">// End TestYoyo</font>
00189 
00190         <font class="comment">// Start for this mesh.</font>
00191         meshGeom-&gt;beginMesh(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>);
00192 
00193         <font class="comment">// number of renderPasses for this mesh.</font>
00194         uint    numRdrPass= meshGeom-&gt;getNumRdrPasses();
00195 
00196         <font class="comment">// sort per material first?</font>
00197         <font class="keywordflow">if</font>( meshGeom-&gt;sortPerMaterial() )
00198         {
00199                 <font class="comment">// for all material.</font>
00200                 <font class="keywordflow">for</font>(uint rdrPass=0;rdrPass&lt;numRdrPass;rdrPass++)
00201                 {
00202                         <font class="comment">// for all instance.</font>
00203                         sint32  instId= meshGeom-&gt;_RootInstanceId;
00204                         <font class="keywordflow">while</font>( instId!=-1 )
00205                         {
00206                                 CInstanceInfo           &amp;instInfo= rdrInstances[instId];
00207 
00208                                 <font class="comment">// activate this instance</font>
00209                                 meshGeom-&gt;activeInstance(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>, instInfo.MBI, instInfo.PolygonCount);
00210 
00211                                 <font class="comment">// render the pass.</font>
00212                                 meshGeom-&gt;renderPass(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>, instInfo.MBI, instInfo.PolygonCount, rdrPass);
00213 
00214                                 <font class="comment">// next instance</font>
00215                                 instId= instInfo.NextInstance;
00216                         }
00217                 }
00218         }
00219         <font class="comment">// else sort per instance first</font>
00220         <font class="keywordflow">else</font>
00221         {
00222                 <font class="comment">// for all instance.</font>
00223                 sint32  instId= meshGeom-&gt;_RootInstanceId;
00224                 <font class="keywordflow">while</font>( instId!=-1 )
00225                 {
00226                         CInstanceInfo           &amp;instInfo= rdrInstances[instId];
00227 
00228                         <font class="comment">// activate this instance</font>
00229                         meshGeom-&gt;activeInstance(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>, instInfo.MBI, instInfo.PolygonCount);
00230 
00231                         <font class="comment">// for all material.</font>
00232                         <font class="keywordflow">for</font>(uint rdrPass=0;rdrPass&lt;numRdrPass;rdrPass++)
00233                         {
00234                                 <font class="comment">// render the pass.</font>
00235                                 meshGeom-&gt;renderPass(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>, instInfo.MBI, instInfo.PolygonCount, rdrPass);
00236                         }
00237 
00238                         <font class="comment">// next instance</font>
00239                         instId= instInfo.NextInstance;
00240                 }
00241         }
00242 
00243         <font class="comment">// End for this mesh.</font>
00244         meshGeom-&gt;endMesh(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o2">_RenderCtx</a>);
00245 }
00246 
00247 
00248 <font class="comment">// ***************************************************************************</font>
00249 <font class="comment">// ***************************************************************************</font>
00250 <font class="comment">// VBHeap mgt</font>
00251 <font class="comment">// ***************************************************************************</font>
00252 <font class="comment">// ***************************************************************************</font>
00253 
00254 
00255 <font class="comment">// ***************************************************************************</font>
<a name="l00256"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#c0">00256</a> <font class="keywordtype">void</font>                    CMeshBlockManager::allocateMeshVBHeap(IMeshGeom *mesh)
00257 {
00258         <font class="comment">// Get info from mesh. </font>
00259         uint vertexFormat, numVertices;
00260         <font class="comment">// if the mesh do not support VBHeap, quit.</font>
00261         <font class="keywordflow">if</font>( !mesh-&gt;getVBHeapInfo(vertexFormat, numVertices) )
00262                 <font class="keywordflow">return</font>;
00263 
00264         <font class="comment">// In case of ...</font>
00265         <font class="keywordflow">if</font>( numVertices==0 )
00266                 <font class="keywordflow">return</font>;
00267 
00268         <font class="comment">// try to find a VBHeap with this vertexFormat.</font>
00269         TVBHeapMap::iterator    it= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o0">_VBHeapMap</a>.find(vertexFormat);
00270         <font class="comment">// if not found, abort</font>
00271         <font class="keywordflow">if</font>(it==<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o0">_VBHeapMap</a>.end())
00272                 <font class="keywordflow">return</font>;
00273 
00274         <font class="comment">// access to this VBHeap.</font>
00275         uint    vbHeapId= it-&gt;second;
00276         CVBHeapBlock    *vbHeapBlock= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[vbHeapId];
00277         <font class="comment">// try to allocate sapce into the heap. Fail=&gt; abort.</font>
00278         uint    indexStart;
00279         <font class="keywordflow">if</font>( !vbHeapBlock-&gt;VBHeap.allocate(numVertices, indexStart) )
00280                 <font class="keywordflow">return</font>;
00281 
00282         <font class="comment">// All is Ok here =&gt; setup infos.</font>
00283         <font class="comment">//==================</font>
00284 
00285         <font class="comment">// Keep track of the mesh =&gt; allocate.</font>
00286         uint    meshId;
00287         <font class="comment">// try to get a free id.</font>
00288         <font class="keywordflow">if</font>( !vbHeapBlock-&gt;FreeIds.empty() )
00289         {
00290                 meshId= vbHeapBlock-&gt;FreeIds.back();
00291                 vbHeapBlock-&gt;FreeIds.pop_back();
00292                 vbHeapBlock-&gt;AllocatedMeshGeoms[meshId]= mesh;
00293         }
00294         <font class="comment">// else, must add to the array</font>
00295         <font class="keywordflow">else</font>
00296         {
00297                 meshId= vbHeapBlock-&gt;AllocatedMeshGeoms.size();
00298                 vbHeapBlock-&gt;AllocatedMeshGeoms.push_back(mesh);
00299         }
00300 
00301         <font class="comment">// info for delete in mesh</font>
00302         mesh-&gt;_MeshVBHeapIndexStart= indexStart;
00303         mesh-&gt;_MeshVBHeapId= vbHeapId + (meshId&lt;&lt;<a class="code" href="mesh__block__manager_8cpp.html#a1">NL3D_MBM_VBHEAP_MESH_SHIFT</a>);
00304 
00305 
00306         <font class="comment">// Fill VB.</font>
00307         <font class="comment">//==================</font>
00308         uint8   *dst= vbHeapBlock-&gt;VBHeap.lock(indexStart);
00309         mesh-&gt;computeMeshVBHeap(dst, indexStart);
00310         <font class="comment">// unlock only what vertices have changed (ATI problem)</font>
00311         vbHeapBlock-&gt;VBHeap.unlock(indexStart, indexStart+numVertices);
00312 }
00313 
00314 <font class="comment">// ***************************************************************************</font>
<a name="l00315"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#z584_2">00315</a> <font class="keywordtype">void</font>                    CMeshBlockManager::freeMeshVBHeap(IMeshGeom *mesh)
00316 {
00317         <a class="code" href="debug_8h.html#a6">nlassert</a>(mesh-&gt;_MeshVBHeapId);
00318 
00319         <font class="comment">// unpack heap and mesh id.</font>
00320         uint    vbHeapId= mesh-&gt;_MeshVBHeapId &amp; <a class="code" href="mesh__block__manager_8cpp.html#a3">NL3D_MBM_VBHEAP_HEAP_MASK</a>;
00321         uint    meshId= (mesh-&gt;_MeshVBHeapId &amp; <a class="code" href="mesh__block__manager_8cpp.html#a2">NL3D_MBM_VBHEAP_MESH_MASK</a>) &gt;&gt; <a class="code" href="mesh__block__manager_8cpp.html#a1">NL3D_MBM_VBHEAP_MESH_SHIFT</a>;
00322 
00323         <font class="comment">// access to this VBHeap.</font>
00324         CVBHeapBlock    *vbHeapBlock= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[vbHeapId];
00325 
00326         <font class="comment">// free VB memory.</font>
00327         vbHeapBlock-&gt;VBHeap.free(mesh-&gt;_MeshVBHeapIndexStart);
00328 
00329         <font class="comment">// free this space</font>
00330         <a class="code" href="debug_8h.html#a6">nlassert</a>(meshId&lt;vbHeapBlock-&gt;AllocatedMeshGeoms.size());
00331         vbHeapBlock-&gt;AllocatedMeshGeoms[meshId]= NULL;
00332         vbHeapBlock-&gt;FreeIds.push_back(meshId);
00333 
00334         <font class="comment">// reset mesh info.</font>
00335         mesh-&gt;_MeshVBHeapId= 0;
00336         mesh-&gt;_MeshVBHeapIndexStart= 0;
00337 }
00338 
00339 <font class="comment">// ***************************************************************************</font>
<a name="l00340"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#z584_0">00340</a> <font class="keywordtype">void</font>                    CMeshBlockManager::releaseVBHeaps()
00341 {
00342         uint    i,j;
00343 
00344         <font class="comment">// For all blocks but the 0th</font>
00345         <font class="keywordflow">for</font>(j=1; j&lt;<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.size();j++)
00346         {
00347                 CVBHeapBlock    *hb= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>[j];
00348 
00349                 <font class="comment">// For all allocated mesh of this heap.</font>
00350                 <font class="keywordflow">for</font>(i=0;i&lt;hb-&gt;AllocatedMeshGeoms.size();i++)
00351                 {
00352                         IMeshGeom       *mesh= hb-&gt;AllocatedMeshGeoms[i];
00353                         <font class="comment">// if the mesh exist.</font>
00354                         <font class="keywordflow">if</font>(mesh)
00355                         {
00356                                 <font class="comment">// free his VBHeap Data.</font>
00357                                 <a class="code" href="classNL3D_1_1CMeshBlockManager.html#z584_2">freeMeshVBHeap</a>(mesh);
00358                                 <a class="code" href="debug_8h.html#a6">nlassert</a>( hb-&gt;AllocatedMeshGeoms[i] == NULL );
00359                         }
00360                 }
00361 
00362                 <font class="comment">// delete the block. NB: VBHeap auto released</font>
00363                 <font class="keyword">delete</font> hb;
00364         }
00365 
00366         <font class="comment">// erase all blocks but 0th</font>
00367         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.resize(1);
00368 
00369         <font class="comment">// clear the map.</font>
00370         <a class="code" href="namespaceNLMISC.html#a222">contReset</a>(<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o0">_VBHeapMap</a>);
00371 }
00372 
00373 <font class="comment">// ***************************************************************************</font>
<a name="l00374"></a><a class="code" href="classNL3D_1_1CMeshBlockManager.html#z584_1">00374</a> <font class="keywordtype">bool</font>                    CMeshBlockManager::addVBHeap(IDriver *drv, uint vertexFormat, uint maxVertices)
00375 {
00376         <font class="comment">// if find an existing vertexFormat, abort.</font>
00377         TVBHeapMap::iterator    it= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o0">_VBHeapMap</a>.find(vertexFormat);
00378         <font class="comment">// if found, abort</font>
00379         <font class="keywordflow">if</font>( it!=<a class="code" href="classNL3D_1_1CMeshBlockManager.html#o0">_VBHeapMap</a>.end() )
00380                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00381 
00382         <font class="comment">// create the block</font>
00383         CVBHeapBlock    *hb= <font class="keyword">new</font> CVBHeapBlock;
00384 
00385         <font class="comment">// allocate vertex space</font>
00386         hb-&gt;VBHeap.init(drv, vertexFormat, maxVertices);
00387 
00388         <font class="comment">// add an entry to the array, and the map.</font>
00389         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.push_back(hb);
00390         <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o0">_VBHeapMap</a>[vertexFormat]= <a class="code" href="classNL3D_1_1CMeshBlockManager.html#o1">_VBHeapBlocks</a>.size()-1;
00391 
00392         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00393 }
00394 
00395 
00396 } <font class="comment">// NL3D</font>
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