1 | #include "ResourceManager.h"
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2 | #include "Matrix4x4.h"
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3 | #include "Geometry.h"
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4 | #include "SceneEntity.h"
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5 | #include "Material.h"
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6 | #include "Texture.h"
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7 | #include "gzstream.h"
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8 | #include "Matrix4x4.h"
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9 | #include "Vector3.h"
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10 | #include "Transform3.h"
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11 | #include "Shape.h"
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12 | #include "LODInfo.h"
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13 |
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14 |
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15 | using namespace std;
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16 |
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17 |
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18 | namespace CHCDemoEngine
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19 | {
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20 |
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21 |
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22 | ResourceManager::~ResourceManager()
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23 | {
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24 | // delete all resources.
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25 | CLEAR_CONTAINER(mSceneEntities);
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26 | CLEAR_CONTAINER(mGeometry);
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27 | CLEAR_CONTAINER(mMaterials);
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28 | CLEAR_CONTAINER(mTextures);
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29 | CLEAR_CONTAINER(mTrafos);
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30 | CLEAR_CONTAINER(mShapes);
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31 | }
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32 |
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33 |
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34 | SceneEntity *ResourceManager::LoadSceneEntity(igzstream &str)
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35 | {
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36 | bool hasTrafo;
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37 | str.read(reinterpret_cast<char *>(&hasTrafo), sizeof(bool));
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38 |
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39 | Matrix4x4 *m;
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40 |
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41 | SceneEntity *sceneGeom;
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42 |
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43 | if (!hasTrafo)
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44 | {
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45 | m = NULL;
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46 | }
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47 | else
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48 | {
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49 | m = new Matrix4x4();
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50 | str.read(reinterpret_cast<char *>(m->x), sizeof(Matrix4x4));
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51 | }
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52 |
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53 | Transform3 *trafo = new Transform3(m);
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54 | mTrafos.push_back(trafo);
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55 |
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56 | sceneGeom = new SceneEntity(trafo);
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57 |
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58 |
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59 | ///////////////
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60 | //-- load lod levels
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61 |
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62 | int numLODs;
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63 | str.read(reinterpret_cast<char *>(&numLODs), sizeof(int));
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64 |
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65 | for (int i = 0; i < numLODs; ++ i)
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66 | {
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67 | float distance;
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68 | str.read(reinterpret_cast<char *>(&distance), sizeof(float));
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69 |
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70 | int numShapes;
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71 | str.read(reinterpret_cast<char *>(&numShapes), sizeof(int));
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72 |
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73 | LODLevel *lodLevel = new LODLevel(distance);
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74 |
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75 | for (int j = 0; j < numShapes; ++ j)
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76 | {
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77 | int shapeId;
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78 | str.read(reinterpret_cast<char *>(&shapeId), sizeof(int));
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79 |
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80 | Geometry *geom = mGeometryTable[shapeId];
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81 | Material *mat = mMaterialTable[shapeId];
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82 |
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83 | // create shape
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84 | Shape *shape = new Shape(geom, mat, sceneGeom);
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85 |
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86 | mShapes.push_back(shape);
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87 |
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88 | sceneGeom->AddShape(shape);
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89 | lodLevel->AddShape(shape);
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90 | }
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91 |
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92 | sceneGeom->AddLODLevel(lodLevel);
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93 | }
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94 |
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95 | return sceneGeom;
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96 | }
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97 |
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98 |
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99 | void ResourceManager::LoadTextures(igzstream &str)
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100 | {
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101 | int numTextures;
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102 | str.read(reinterpret_cast<char *>(&numTextures), sizeof(int));
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103 |
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104 | for (int i = 0; i < numTextures; ++ i)
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105 | {
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106 | // texture
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107 | int texnameSize;
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108 |
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109 | str.read(reinterpret_cast<char *>(&texnameSize), sizeof(int));
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110 |
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111 | char *texname = new char[texnameSize];
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112 | str.read(texname, sizeof(char) * texnameSize);
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113 |
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114 | Texture *tex = new Texture(model_path + texname);
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115 |
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116 | int boundS, boundT;
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117 |
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118 | str.read(reinterpret_cast<char *>(&boundS), sizeof(int));
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119 | str.read(reinterpret_cast<char *>(&boundT), sizeof(int));
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120 |
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121 | tex->SetBoundaryModeS(boundS);
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122 | tex->SetBoundaryModeT(boundT);
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123 |
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124 | tex->Create();
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125 |
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126 | mTextureTable[i] = tex;
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127 | mTextures.push_back(tex);
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128 | }
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129 |
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130 | cout << "loaded " << (int)mTextureTable.size() << " textures" << endl;
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131 | }
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132 |
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133 |
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134 | void ResourceManager::LoadShapes(igzstream &str)
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135 | {
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136 | int numShapes;
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137 | str.read(reinterpret_cast<char *>(&numShapes), sizeof(int));
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138 |
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139 | for (int i = 0; i < numShapes; ++ i)
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140 | {
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141 | Geometry *geom = LoadGeometry(str);
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142 | Material *mat = LoadMaterial(str);
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143 |
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144 | mGeometryTable[i] = geom;
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145 | mMaterialTable[i] = mat;
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146 |
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147 | mGeometry.push_back(geom);
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148 | mMaterials.push_back(mat);
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149 | }
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150 |
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151 | cout << "loaded " << (int)mGeometryTable.size() << " shapes" << endl;
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152 | }
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153 |
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154 |
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155 | Material *ResourceManager::LoadMaterial(igzstream &str)
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156 | {
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157 | // default material
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158 | Material *mat = new Material();
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159 |
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160 | // texture
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161 | int texId;
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162 | str.read(reinterpret_cast<char *>(&texId), sizeof(int));
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163 |
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164 | if (texId >= 0)
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165 | mat->SetTexture(mTextureTable[texId]);
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166 |
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167 | str.read(reinterpret_cast<char *>(&mat->mAlphaTestEnabled), sizeof(bool));
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168 |
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169 | str.read(reinterpret_cast<char *>(&mat->mCullFaceEnabled), sizeof(bool));
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170 |
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171 | // material
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172 | bool hasMaterial;
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173 | str.read(reinterpret_cast<char *>(&hasMaterial), sizeof(bool));
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174 |
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175 | if (hasMaterial)
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176 | {
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177 | // only write rgb part of the material
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178 | str.read(reinterpret_cast<char *>(&mat->mAmbientColor), sizeof(Vector3));
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179 | str.read(reinterpret_cast<char *>(&mat->mDiffuseColor), sizeof(Vector3));
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180 | str.read(reinterpret_cast<char *>(&mat->mEmmisiveColor), sizeof(Vector3));
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181 | str.read(reinterpret_cast<char *>(&mat->mSpecularColor), sizeof(Vector3));
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182 | }
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183 |
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184 | return mat;
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185 | }
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186 |
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187 |
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188 | Geometry *ResourceManager::LoadGeometry(igzstream &str)
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189 | {
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190 | Vector3 *vertices;
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191 | Vector3 *normals;
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192 | float *texcoords;
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193 |
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194 |
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195 | //////////////
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196 | //-- read in vertices
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197 |
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198 | int vertexCount;
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199 | str.read(reinterpret_cast<char *>(&vertexCount), sizeof(int));
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200 |
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201 | // end of file reached
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202 | if (str.eof())
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203 | return NULL;
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204 |
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205 | //cout << "vertexcount: " << vertexCount << endl;
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206 |
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207 | vertices = new Vector3[vertexCount];
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208 | str.read(reinterpret_cast<char *>(vertices), sizeof(Vector3) * vertexCount);
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209 |
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210 | normals = new Vector3[vertexCount];
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211 | str.read(reinterpret_cast<char *>(normals), sizeof(Vector3) * vertexCount);
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212 |
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213 | int texCoordCount;
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214 | str.read(reinterpret_cast<char *>(&texCoordCount), sizeof(int));
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215 |
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216 | if (texCoordCount)
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217 | {
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218 | texcoords = new float[texCoordCount * 2];
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219 | str.read(reinterpret_cast<char *>(texcoords), sizeof(float) * vertexCount * 2);
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220 | }
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221 | else
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222 | {
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223 | texcoords = NULL;
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224 | }
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225 |
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226 |
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227 | return new Geometry(vertices, normals, texcoords, vertexCount, true);
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228 | }
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229 |
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230 |
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231 | void ResourceManager::LoadSceneEntities(igzstream &str, SceneEntityContainer &entities)
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232 | {
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233 | int entityCount;
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234 | str.read(reinterpret_cast<char *>(&entityCount), sizeof(int));
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235 |
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236 | entities.resize(entityCount);
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237 |
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238 | for (int i = 0; i < entityCount; ++ i)
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239 | {
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240 | SceneEntity *ent = LoadSceneEntity(str);
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241 | entities[i] = ent;
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242 |
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243 | mSceneEntities.push_back(ent);
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244 | }
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245 |
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246 | cout << "loaded " << entityCount << " scene entities" << endl;
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247 | }
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248 |
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249 |
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250 | bool ResourceManager::Load(const std::string &filename, SceneEntityContainer &entities)
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251 | {
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252 | igzstream istr(filename.c_str());
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253 |
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254 | if (!istr.is_open())
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255 | return false;
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256 |
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257 | cout << "loading textures" << endl;
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258 |
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259 | // load the texture table
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260 | LoadTextures(istr);
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261 |
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262 | cout << "loading shapes (geometry + materials)" << endl;
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263 |
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264 | // load the shapees
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265 | LoadShapes(istr);
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266 |
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267 | cout << "loading scene entites" << endl;
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268 | LoadSceneEntities(istr, entities);
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269 |
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270 | cout << "bin loading finished" << endl;
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271 |
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272 | // clean up
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273 | mTextureTable.clear();
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274 | mGeometryTable.clear();
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275 | mMaterialTable.clear();
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276 | //mShapesTable.clear();
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277 |
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278 | return true;
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279 | }
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280 |
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281 | }
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