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00001 
+00007 /* Copyright, 2000-2002 Nevrax Ltd.
+00008  *
+00009  * This file is part of NEVRAX NEL.
+00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
+00011  * it under the terms of the GNU General Public License as published by
+00012  * the Free Software Foundation; either version 2, or (at your option)
+00013  * any later version.
+00014 
+00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
+00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
+00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+00018  * General Public License for more details.
+00019 
+00020  * You should have received a copy of the GNU General Public License
+00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
+00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+00023  * MA 02111-1307, USA.
+00024  */
+00025 
+00026 #ifndef NL_MESH_BLOCK_MANAGER_H
+00027 #define NL_MESH_BLOCK_MANAGER_H
+00028 
+00029 #include "nel/misc/types_nl.h"
+00030 #include "3d/mesh_geom.h"
+00031 #include "3d/vertex_buffer_heap.h"
+00032 
+00033 
+00034 namespace NL3D 
+00035 {
+00036 
+00037 
+00038 class   CMeshBaseInstance;
+00039 class   IDriver;
+00040 class   CScene;
+00041 class   CRenderTrav;
+00042 
+00043 // ***************************************************************************
+00056 class CMeshBlockManager
+00057 {
+00058 public:
+00059 
+00061         CMeshBlockManager();
+00062         ~CMeshBlockManager();
+00063 
+00067         void                    addInstance(IMeshGeom *meshGeom, CMeshBaseInstance *inst, float polygonCount);
+00068 
+00071         void                    flush(IDriver *drv, CScene *scene, CRenderTrav *renderTrav);
+00072 
+00073 
+00075         // @{
+00076 
+00078         void                    releaseVBHeaps();
+00079 
+00084         bool                    addVBHeap(IDriver *drv, uint vertexFormat, uint maxVertices);
+00085 
+00087         void                    freeMeshVBHeap(IMeshGeom *mesh);
+00088 
+00089         // @}
+00090 
+00091 // ************************
+00092 private:
+00093 
+00094         // An instance information.
+00095         struct  CInstanceInfo
+00096         {
+00097                 IMeshGeom                       *MeshGeom;
+00098                 CMeshBaseInstance       *MBI;
+00099                 float                           PolygonCount;
+00100                 // Next instance to render in the list. -1 if end of list.
+00101                 sint32                          NextInstance;
+00102         };
+00103 
+00104         // A VBHeap information.
+00105         struct  CVBHeapBlock
+00106         {
+00108                 std::vector<CInstanceInfo>      RdrInstances;
+00109 
+00111                 std::vector<IMeshGeom*>         RdrMeshGeoms;
+00112 
+00114                 CVertexBufferHeap                       VBHeap;
+00116                 std::vector<IMeshGeom*>         AllocatedMeshGeoms;
+00118                 std::vector<uint>                       FreeIds;
+00119         };
+00120 
+00122         typedef std::map<uint, uint>    TVBHeapMap;
+00123         TVBHeapMap                                              _VBHeapMap;
+00124 
+00128         std::vector<CVBHeapBlock*>              _VBHeapBlocks;
+00129 
+00131         void                    allocateMeshVBHeap(IMeshGeom *mesh);
+00132 
+00133         // render all instance of this meshGeoms, sorting by material, VP etc....
+00134         void                    render(IMeshGeom *meshGeom, std::vector<CInstanceInfo>  &rdrInstances);
+00135 
+00136         // current flush setup
+00137         CMeshGeomRenderContext          _RenderCtx;
+00138 };
+00139 
+00140 
+00141 } // NL3D
+00142 
+00143 
+00144 #endif // NL_MESH_BLOCK_MANAGER_H
+00145 
+00146 /* End of mesh_block_manager.h */
+