1 | /* ==========================================================================
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2 | * (C) 2005 Universitat Jaume I
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3 | * ==========================================================================
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4 | * PROYECT: GAME TOOLS
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5 | * ==========================================================================
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6 | * CONTENT:
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7 | *
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8 | *
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9 | * @file GeoMeshLoader.h
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10 | *===========================================================================*/
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11 | #ifndef __GEO_MESH_LOADER__
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12 | #define __GEO_MESH_LOADER__
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13 |
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14 | #include <stdio.h>
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15 | #include <stdlib.h>
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16 | #include <string>
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17 | #include <vector>
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18 | #include <memory.h>
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19 | #include <time.h>
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20 | #include <iostream>
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21 | #include <iomanip>
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22 | #include "GeoBase.h"
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23 | #include "GeoMesh.h"
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24 | #include "GeoLodStripsLibrary.h"
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25 | #include "GeoLodTreeLibrary.h"
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26 |
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27 | namespace Geometry
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28 | {
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29 | const unsigned short CHUNK_OVERHEAD_SIZE = sizeof(unsigned short)
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30 | +
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31 | sizeof(unsigned long);
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32 |
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33 | const unsigned short M_HEADER = 0x1000;
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34 | const unsigned short M_MESH = 0x3000;
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35 | const unsigned short M_SUBMESH = 0x4000;
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36 | const unsigned short M_SUBMESH_OPERATION = 0x4010;
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37 | const unsigned short M_SUBMESH_BONE_ASSIGNMENT = 0x4100;
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38 | const unsigned short M_GEOMETRY = 0x5000;
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39 | const unsigned short M_GEOMETRY_VERTEX_DECLARATION = 0x5100;
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40 | const unsigned short M_GEOMETRY_VERTEX_ELEMENT = 0x5110;
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41 | const unsigned short M_GEOMETRY_VERTEX_BUFFER = 0x5200;
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42 | const unsigned short M_GEOMETRY_VERTEX_BUFFER_DATA = 0x5210;
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43 | const unsigned short M_MESH_SKELETON_LINK = 0x6000;
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44 | const unsigned short M_MESH_BONE_ASSIGNMENT = 0x7000;
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45 | const unsigned short M_MESH_LOD = 0x8000;
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46 | const unsigned short M_MESH_LOD_USAGE = 0x8100;
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47 | const unsigned short M_MESH_LOD_MANUAL = 0x8110;
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48 | const unsigned short M_MESH_LOD_GENERATED = 0x8120;
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49 | const unsigned short M_MESH_BOUNDS = 0x9000;
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50 | const unsigned short M_SUBMESH_NAME_TABLE = 0xA000;
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51 | const unsigned short M_SUBMESH_NAME_TABLE_ELEMENT = 0xA100;
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52 | const unsigned short M_EDGE_LISTS = 0xB000;
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53 | const unsigned short M_EDGE_LIST_LOD = 0xB100;
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54 | const unsigned short M_EDGE_GROUP = 0xB110;
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55 | const unsigned short SUBMESH_COUNT = 0;
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56 | const unsigned short GEOMESH_BUILD = 1;
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57 |
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58 | enum VertexElementType
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59 | {
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60 | VET_FLOAT1,
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61 | VET_FLOAT2,
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62 | VET_FLOAT3,
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63 | VET_FLOAT4,
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64 | VET_COLOUR,
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65 | VET_SHORT1,
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66 | VET_SHORT2,
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67 | VET_SHORT3,
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68 | VET_SHORT4,
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69 | VET_UBYTE4
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70 | };
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71 |
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72 | enum VertexElementSemantic
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73 | {
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74 | /// Position, 3 reals per vertex
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75 | VES_POSITION = 1,
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76 | /// Blending weights
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77 | VES_BLEND_WEIGHTS = 2,
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78 | /// Blending indices
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79 | VES_BLEND_INDICES = 3,
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80 | /// Normal, 3 reals per vertex
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81 | VES_NORMAL = 4,
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82 | /// Diffuse colours
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83 | VES_DIFFUSE = 5,
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84 | /// Specular colours
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85 | VES_SPECULAR = 6,
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86 | /// Texture coordinates
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87 | VES_TEXTURE_COORDINATES = 7,
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88 | /// Binormal (Y axis if normal is Z)
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89 | VES_BINORMAL = 8,
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90 | /// Tangent (X axis if normal is Z)
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91 | VES_TANGENT = 9
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92 | };
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93 |
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94 | /*
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95 | // Bounding Box data.
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96 | struct GeometryBounds
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97 | {
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98 | float minx;
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99 | float miny;
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100 | float minz;
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101 | float maxx;
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102 | float maxy;
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103 | float maxz;
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104 | float radius;
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105 | };
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106 | */
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107 |
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108 | /// Mesh class interface
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109 | class GeoMeshLoader
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110 | {
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111 | private:
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112 |
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113 | Mesh *geoMesh;
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114 | size_t mFileSize;
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115 | unsigned int numVertices;
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116 | unsigned long long_actual;
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117 | size_t currentSubMesh;
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118 | bool mError;
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119 |
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120 | struct GeometryElement
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121 | {
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122 | unsigned short offset;
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123 | unsigned short semantic;
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124 | unsigned short type;
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125 | unsigned short index;
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126 | };
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127 |
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128 | struct GT
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129 | {
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130 | unsigned short source; //bindIndex
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131 | std::vector <GeometryElement> list;
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132 | };
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133 |
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134 | std::vector <GT> list;
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135 |
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136 | // Jump a chunk.
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137 | void jumpChunk(FILE *f);
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138 |
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139 | // Read a chunk.
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140 | unsigned short readChunk(FILE *f);
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141 |
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142 | // Read geometry vertex element.
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143 | void readGeometryVertexElement(FILE *f, Mesh *geoMesh);
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144 |
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145 | // Read geometry vertex declaration.
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146 | void readGeometryVertexDeclaration(FILE *f, Mesh *geoMesh);
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147 |
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148 | // Read geometry vertex buffer.
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149 | void readGeometryVertexBuffer(FILE *f,
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150 | Mesh *geoMesh,
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151 | int option);
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152 |
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153 | // Read geometry.
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154 | void readGeometry(FILE *f, Mesh *geoMesh, int option);
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155 |
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156 | // Read a submesh operation.
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157 | void readSubMeshOperation(FILE *f, Mesh *geoMesh, int option);
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158 |
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159 | // Read a submesh.
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160 | void readSubMesh(FILE *f, Mesh *geoMesh, int option);
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161 |
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162 | // Read skeleton name.
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163 | void readSkeletonLink(FILE *f, Mesh *geoMesh, int option);
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164 |
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165 | // Read bone assignment.
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166 | void readMeshBoneAssignment(FILE *f, Mesh *geoMesh, int option);
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167 |
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168 | // Read bone assignment.
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169 | void readSubMeshBoneAssignment(FILE *f, SubMesh *geoSubMesh, int option);
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170 |
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171 | // Read a mesh lod information.
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172 | void readMeshLodInfo(FILE *f, Mesh *geoMesh);
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173 |
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174 | // Read a submesh name table.
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175 | void readSubMeshNameTable(FILE *f, Mesh *geoMesh);
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176 |
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177 | // Read a mesh file.
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178 | void readMesh(FILE *f, Mesh *geoMesh, int option);
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179 |
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180 | // Read bounding box settings.
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181 | void readMeshBounds(FILE *f, Mesh *geoMesh, int option);
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182 |
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183 | // Writes the strips list.
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184 | SubMesh* GeoMeshLoader::BuildStripsGeoSubMesh(SubMesh *geoSubMesh);
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185 |
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186 | // Remove degenerate triangles of a submesh given.
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187 | SubMesh * removeDegenerateTriangles(SubMesh *geoSubMesh);
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188 |
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189 | // Sets coods between -1 and 1.
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190 | void normalizeModel(Mesh *geoMesh);
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191 |
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192 | // Imports an OBJ object
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193 | void importOBJ(FILE *f, Mesh *geoMesh);
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194 |
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195 | Geometry::LodStripsLibraryData *lodstripsdata;
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196 | Geometry::TreeSimplificationSequence *treesimpseq;
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197 |
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198 | public:
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199 |
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200 | // Constructor.
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201 | GeoMeshLoader();
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202 |
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203 | // Destroyer.
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204 | ~GeoMeshLoader();
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205 |
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206 | // Loads a Mesh file.
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207 | Mesh* load(char *fileNameMesh);
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208 |
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209 | // Get the size in bytes of the file.
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210 | size_t getFileSize();
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211 |
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212 | // if the loaded .mesh file doesn't contain LOD data this will return NULL
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213 | const Geometry::LodStripsLibraryData * GetLodStripsData(void) const { return lodstripsdata; }
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214 | const Geometry::TreeSimplificationSequence * GetTreeSimpSeq(void) const { return treesimpseq; }
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215 | };
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216 | }
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217 | #endif
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218 |
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