source/gameengine/Rasterizer/RAS_MeshObject.h

   1 /**
   2  * $Id$
   3  *
   4  * ***** BEGIN GPL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  *
  20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  21  * All rights reserved.
  22  *
  23  * The Original Code is: all of this file.
  24  *
  25  * Contributor(s): none yet.
  26  *
  27  * ***** END GPL LICENSE BLOCK *****
  28  */
  29 #ifndef __RAS_MESHOBJECT
  30 #define __RAS_MESHOBJECT
  31
  32 #if defined(WIN32) && !defined(FREE_WINDOWS)
  33 // disable the STL warnings ("debug information length > 255")
  34 #pragma warning (disable:4786)
  35 #endif
  36
  37 #include <vector>
  38 #include <set>
  39 #include <list>
  40
  41 #include "RAS_Polygon.h"
  42 #include "RAS_MaterialBucket.h"
  43 #include "MT_Transform.h"
  44
  45 #include "GEN_HashedPtr.h"
  46
  47 struct Mesh;
  48 class RAS_Deformer;
  49
  50 /* RAS_MeshObject is a mesh used for rendering. It stores polygons,
  51  * but the actual vertices and index arrays are stored in material
  52  * buckets, referenced by the list of RAS_MeshMaterials. */
  53
  54 class RAS_MeshObject
  55 {
  56 private:
  57         unsigned int                            m_debugcolor;
  58
  59         bool                                            m_bModified;
  60         bool                                            m_bMeshModified;
  61
  62         STR_String                                      m_name;
  63         static STR_String                       s_emptyname;
  64
  65         vector<class RAS_Polygon*>      m_Polygons;
  66
  67         /* polygon sorting */
  68         struct polygonSlot;
  69         struct backtofront;
  70         struct fronttoback;
  71
  72 protected:
  73         vector<int>                                             m_cacheWeightIndex;
  74         list<RAS_MeshMaterial>                  m_materials;
  75         Mesh*                                                   m_mesh;
  76
  77 public:
  78         // for now, meshes need to be in a certain layer (to avoid sorting on lights in realtime)
  79         RAS_MeshObject(Mesh* mesh);
  80         virtual ~RAS_MeshObject();
  81
  82
  83         // for shape keys,
  84         void CheckWeightCache(struct Object* obj);
  85
  86         /* materials */
  87         int                                     NumMaterials();
  88         const STR_String&       GetMaterialName(unsigned int matid);
  89         const STR_String&       GetTextureName(unsigned int matid);
  90
  91         RAS_MeshMaterial*       GetMeshMaterial(unsigned int matid);
  92         RAS_MeshMaterial*       GetMeshMaterial(RAS_IPolyMaterial *mat);
  93         int                                     GetMaterialId(RAS_IPolyMaterial *mat);
  94
  95         list<RAS_MeshMaterial>::iterator GetFirstMaterial();
  96         list<RAS_MeshMaterial>::iterator GetLastMaterial();
  97
  98         //unsigned int          GetLightLayer();
  99
 100         /* name */
 101         void                            SetName(const char *name);
 102         STR_String&                     GetName();
 103
 104         /* modification state */
 105         bool                            MeshModified();
 106         void                            SetMeshModified(bool v){m_bMeshModified = v;}
 107
 108         /* original blender mesh */
 109         Mesh*                           GetMesh() { return m_mesh; }
 110
 111         /* mesh construction */
 112
 113         virtual RAS_Polygon*    AddPolygon(RAS_MaterialBucket *bucket, int numverts);
 114         virtual void                    AddVertex(RAS_Polygon *poly, int i,
 115                                                         const MT_Point3& xyz,
 116                                                         const MT_Point2& uv,
 117                                                         const MT_Point2& uv2,
 118                                                         const MT_Vector4& tangent,
 119                                                         const unsigned int rgbacolor,
 120                                                         const MT_Vector3& normal,
 121                                                         bool flat,
 122                                                         int origindex);
 123
 124         void                                    SchedulePolygons(int drawingmode);
 125
 126         /* vertex and polygon acces */
 127         int                                     NumVertices(RAS_IPolyMaterial* mat);
 128         RAS_TexVert*            GetVertex(unsigned int matid, unsigned int index);
 129         const float*            GetVertexLocation(unsigned int orig_index);
 130
 131         int                                     NumPolygons();
 132         RAS_Polygon*            GetPolygon(int num) const;
 133
 134         /* buckets */
 135         virtual void            AddMeshUser(void *clientobj, SG_QList *head, RAS_Deformer* deformer);
 136
 137         void                            RemoveFromBuckets(void *clientobj);
 138         void                            EndConversion() {
 139 #if 0
 140                 m_sharedvertex_map.clear(); // SharedVertex
 141                 vector<vector<SharedVertex> >   shared_null(0);
 142                 shared_null.swap( m_sharedvertex_map ); /* really free the memory */
 143 #endif
 144         }
 145
 146         /* colors */
 147         void                            DebugColor(unsigned int abgr);
 148         void                            SetVertexColor(RAS_IPolyMaterial* mat,MT_Vector4 rgba);
 149
 150         /* polygon sorting by Z for alpha */
 151         void                            SortPolygons(RAS_MeshSlot& ms, const MT_Transform &transform);
 152
 153
 154         bool                            HasColliderPolygon() {
 155                 int numpolys= NumPolygons();
 156                 for (int p=0; p<numpolys; p++)
 157                         if (m_Polygons[p]->IsCollider())
 158                                 return true;
 159
 160                 return false;
 161         }
 162
 163         /* for construction to find shared vertices */
 164         struct SharedVertex {
 165                 RAS_DisplayArray *m_darray;
 166                 int m_offset;
 167         };
 168
 169         vector<vector<SharedVertex> >   m_sharedvertex_map;
 170
 171
 172 #ifdef WITH_CXX_GUARDEDALLOC
 173 public:
 174         void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:RAS_MeshObject"); }
 175         void operator delete( void *mem ) { MEM_freeN(mem); }
 176 #endif
 177 };
 178
 179 #endif //__RAS_MESHOBJECT
 180