1 | #include "SceneGraph.h" |
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2 | #include "Exporter.h" |
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3 | #include "UnigraphicsParser.h" |
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4 | #include "X3dParser.h" |
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5 | #include "Preprocessor.h" |
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6 | #include "ViewCell.h" |
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7 | #include "Environment.h" |
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8 | |
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9 | Preprocessor::Preprocessor(): |
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10 | mKdTree(NULL), |
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11 | mBspTree(NULL), |
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12 | mViewCellsType(BSP_VIEW_CELLS) |
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13 | { |
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14 | } |
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15 | |
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16 | Preprocessor::~Preprocessor() |
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17 | {
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18 | DeleteViewCells();
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19 | |
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20 | DEL_PTR(mBspTree); |
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21 | DEL_PTR(mKdTree); |
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22 | } |
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23 | |
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24 | bool |
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25 | Preprocessor::LoadViewCells(const string filename) |
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26 | { |
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27 | X3dParser parser; |
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28 | int maxViewCells = 0; |
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29 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight); |
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30 | environment->GetIntValue("ViewCells.maxViewCells", maxViewCells); |
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31 | |
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32 | bool loaded = parser.ParseFile(filename, mViewCells); |
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33 | |
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34 | if (maxViewCells > 0) |
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35 | { |
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36 | while (mViewCells.size() > maxViewCells) |
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37 | { |
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38 | ViewCell *vc = mViewCells.back(); |
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39 | DEL_PTR(vc); |
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40 | mViewCells.pop_back(); |
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41 | } |
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42 | } |
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43 | return loaded; |
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44 | } |
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45 | |
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46 | bool Preprocessor::ParseViewCellsOptions() |
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47 | { |
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48 | // parse type of view cells |
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49 | char viewCellsStr[64]; |
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50 | environment->GetStringValue("ViewCells.hierarchy", viewCellsStr); |
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51 | |
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52 | int vcType = BSP_VIEW_CELLS; |
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53 | |
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54 | if (strcmp(viewCellsStr, "bspTree") == 0) |
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55 | mViewCellsType = BSP_VIEW_CELLS; |
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56 | else if (strcmp(viewCellsStr, "kdTree") == 0) |
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57 | mViewCellsType = KD_VIEW_CELLS; |
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58 | else if (strcmp(viewCellsStr, "sceneDependent") == 0) |
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59 | { |
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60 | //TODO |
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61 | } |
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62 | else |
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63 | { |
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64 | cerr<<"Wrong view cells type" << viewCellsStr << endl; |
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65 | exit(1); |
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66 | } |
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67 | |
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68 | if (mViewCellsType == KD_VIEW_CELLS) |
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69 | Debug << "kdtree" << endl; |
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70 | else if (mViewCellsType == BSP_VIEW_CELLS) |
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71 | Debug << "bsptree" << endl; |
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72 | |
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73 | return true; |
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74 | } |
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75 | |
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76 | void Preprocessor::DeleteViewCells() |
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77 | { |
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78 | for (int i = 0; i < mViewCells.size(); ++ i) |
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79 | delete mViewCells[i]->GetMesh(); |
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80 | |
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81 | CLEAR_CONTAINER(mViewCells); |
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82 | } |
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83 | |
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84 | bool |
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85 | Preprocessor::GenerateViewCells() |
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86 | { |
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87 | // TODO |
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88 | // HACK: derive view cells from the scene objects |
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89 | ObjectContainer objects; |
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90 | |
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91 | int maxViewCells = 0; |
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92 | environment->GetIntValue("ViewCells.maxViewCells", maxViewCells); |
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93 | |
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94 | mSceneGraph->CollectObjects(&objects); |
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95 | ViewCell::DeriveViewCells(objects, mViewCells, maxViewCells); |
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96 | |
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97 | return true; |
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98 | } |
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99 | |
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100 | bool |
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101 | Preprocessor::LoadScene(const string filename) |
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102 | { |
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103 | // use leaf nodes of the original spatial hiearrchy as occludees |
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104 | |
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105 | mSceneGraph = new SceneGraph; |
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106 | |
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107 | |
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108 | Parser *parser; |
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109 | |
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110 | if (strstr(filename.c_str(), ".x3d")) |
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111 | parser = new X3dParser; |
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112 | else |
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113 | parser = new UnigraphicsParser; |
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114 | |
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115 | bool result = parser->ParseFile(filename, &mSceneGraph->mRoot); |
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116 | |
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117 | delete parser; |
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118 | |
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119 | return result; |
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120 | } |
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121 | |
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122 | bool |
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123 | Preprocessor::ExportPreprocessedData(const string filename) |
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124 | { |
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125 | return false; |
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126 | } |
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127 | |
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128 | bool |
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129 | Preprocessor::BuildKdTree() |
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130 | { |
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131 | mKdTree = new KdTree; |
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132 | // add mesh instances of the scene graph to the root of the tree |
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133 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot(); |
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134 | mSceneGraph->CollectObjects(&root->mObjects); |
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135 | |
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136 | mKdTree->Construct(); |
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137 | return true; |
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138 | } |
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139 | |
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140 | void |
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141 | Preprocessor::KdTreeStatistics(ostream &s) |
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142 | { |
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143 | s<<mKdTree->GetStatistics(); |
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144 | } |
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145 | |
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146 | void |
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147 | Preprocessor::BspTreeStatistics(ostream &s) |
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148 | { |
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149 | s << mBspTree->GetStatistics(); |
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150 | } |
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151 | |
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152 | bool |
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153 | Preprocessor::Export( const string filename, |
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154 | const bool scene, |
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155 | const bool kdtree, |
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156 | const bool bsptree |
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157 | ) |
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158 | { |
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159 | Exporter *exporter = Exporter::GetExporter(filename); |
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160 | |
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161 | if (exporter) { |
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162 | if (scene) |
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163 | exporter->ExportScene(mSceneGraph->mRoot); |
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164 | |
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165 | if (kdtree) { |
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166 | exporter->SetWireframe(); |
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167 | exporter->ExportKdTree(*mKdTree); |
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168 | } |
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169 | |
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170 | if (bsptree) { |
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171 | //exporter->SetWireframe(); |
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172 | exporter->ExportBspTree(*mBspTree); |
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173 | } |
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174 | |
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175 | delete exporter; |
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176 | return true; |
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177 | } |
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178 | |
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179 | return false; |
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180 | } |
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