[372] | 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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[409] | 8 | #include "RenderSimulator.h"
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[372] | 9 |
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| 10 | Preprocessor::Preprocessor():
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| 11 | mKdTree(NULL),
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[409] | 12 | mBspTree(NULL),
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[422] | 13 | mVspKdTree(NULL),
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[409] | 14 | mRenderSimulator(NULL)
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[308] | 15 | {
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[372] | 16 | }
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| 17 |
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| 18 |
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| 19 | Preprocessor::~Preprocessor()
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| 20 | {
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| 21 | DEL_PTR(mBspTree);
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| 22 | DEL_PTR(mKdTree);
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[409] | 23 |
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| 24 | DEL_PTR(mRenderSimulator);
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[422] | 25 |
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| 26 | DeleteViewCells();
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[372] | 27 | }
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| 28 |
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| 29 | bool
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| 30 | Preprocessor::LoadViewCells(const string filename)
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| 31 | {
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| 32 | X3dParser parser;
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[419] | 33 |
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[372] | 34 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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[419] | 35 |
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| 36 | return parser.ParseFile(filename, mViewCells);
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[372] | 37 | }
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| 38 |
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| 39 | bool
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| 40 | Preprocessor::ParseViewCellsOptions()
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| 41 | {
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| 42 | // parse type of view cells
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| 43 | char viewCellsStr[64];
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| 44 | environment->GetStringValue("ViewCells.hierarchy", viewCellsStr);
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| 45 |
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| 46 | if (strcmp(viewCellsStr, "bspTree") == 0)
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[409] | 47 | {
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[372] | 48 | ViewCell::sHierarchy = ViewCell::BSP;
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[409] | 49 | }
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[372] | 50 | else if (strcmp(viewCellsStr, "kdTree") == 0)
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[409] | 51 | {
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[372] | 52 | ViewCell::sHierarchy = ViewCell::KD;
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[409] | 53 | }
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[411] | 54 | else if (strcmp(viewCellsStr, "vspTree") == 0)
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| 55 | {
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| 56 | ViewCell::sHierarchy = ViewCell::VSP;
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| 57 | }
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[372] | 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 | return true;
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| 69 | }
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| 70 |
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[409] | 71 | RenderSimulator *Preprocessor::GetRenderSimulator()
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| 72 | {
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| 73 | if (mRenderSimulator)
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| 74 | return mRenderSimulator;
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| 75 |
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| 76 | float objRenderCost = 0, vcOverhead = 0, moveSpeed = 0;
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| 77 |
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| 78 | environment->GetFloatValue("Simulation.objRenderCost",objRenderCost);
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| 79 | environment->GetFloatValue("Simulation.vcOverhead", vcOverhead);
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| 80 | environment->GetFloatValue("Simulation.moveSpeed", moveSpeed);
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| 81 |
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[410] | 82 | Debug << "render simulator using render cost=" << objRenderCost << ", vc overhead=" << vcOverhead << ", move speed=" << moveSpeed << endl;
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[416] | 83 | if (ViewCell::sHierarchy == ViewCell::BSP)
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| 84 | {
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[409] | 85 | mRenderSimulator = new BspViewCellRenderSimulator(objRenderCost, vcOverhead, moveSpeed, mBspTree);
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[416] | 86 | Debug << "creating bsp render simulator" << endl;
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| 87 | }
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| 88 | else if (ViewCell::sHierarchy == ViewCell::KD)// KD view cells
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| 89 | {
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[409] | 90 | mRenderSimulator = new KdViewCellRenderSimulator(objRenderCost, vcOverhead, moveSpeed, mKdTree);
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[416] | 91 | Debug << "creating kd render simulator" << endl;
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| 92 | }
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| 93 | else
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| 94 | {
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| 95 | Debug << "not implemented yet" << endl;
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| 96 | return NULL;
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| 97 | }
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[409] | 98 |
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| 99 | return mRenderSimulator;
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| 100 | }
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| 101 |
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[372] | 102 | void Preprocessor::DeleteViewCells()
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| 103 | {
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[409] | 104 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
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| 105 | {
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| 106 | Mesh *mesh = mViewCells[i]->GetMesh();
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| 107 | DEL_PTR(mesh);
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| 108 | }
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[372] | 109 | CLEAR_CONTAINER(mViewCells);
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| 110 | }
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| 111 |
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[387] | 112 | int
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[419] | 113 | SplitFilenames(const string str, vector<string> &filenames)
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[387] | 114 | {
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| 115 | int pos = 0;
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| 116 |
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| 117 | while(1) {
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| 118 | int npos = str.find(';', pos);
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| 119 |
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| 120 | if (npos < 0 || npos - pos < 1)
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| 121 | break;
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| 122 | filenames.push_back(string(str, pos, npos - pos));
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| 123 | pos = npos + 1;
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| 124 | }
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| 125 |
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| 126 | filenames.push_back(string(str, pos, str.size() - pos));
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| 127 | return filenames.size();
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| 128 | }
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| 129 |
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[372] | 130 | bool
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| 131 | Preprocessor::LoadScene(const string filename)
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| 132 | {
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| 133 | // use leaf nodes of the original spatial hiearrchy as occludees
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| 134 |
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| 135 | mSceneGraph = new SceneGraph;
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| 136 |
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| 137 |
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| 138 | Parser *parser;
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[387] | 139 | vector<string> filenames;
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| 140 | int files = SplitFilenames(filename, filenames);
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| 141 | cout<<files<<endl;
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| 142 | bool result = false;
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| 143 | if (files == 1) {
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| 144 |
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| 145 | if (strstr(filename.c_str(), ".x3d"))
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| 146 | parser = new X3dParser;
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| 147 | else
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| 148 | parser = new UnigraphicsParser;
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[372] | 149 |
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[387] | 150 | cout<<filename<<endl;
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| 151 | result = parser->ParseFile(filename, &mSceneGraph->mRoot);
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[372] | 152 |
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[387] | 153 | delete parser;
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[372] | 154 |
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[387] | 155 | } else {
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| 156 | // root for different files
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| 157 | mSceneGraph->mRoot = new SceneGraphNode;
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| 158 | for (int i= 0; i < filenames.size(); i++) {
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| 159 | if (strstr(filenames[i].c_str(), ".x3d"))
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| 160 | parser = new X3dParser;
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| 161 | else
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| 162 | parser = new UnigraphicsParser;
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| 163 |
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| 164 | SceneGraphNode *node;
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| 165 | if (parser->ParseFile(filenames[i], &node)) {
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| 166 | mSceneGraph->mRoot->mChildren.push_back(node);
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| 167 | // at least one file parsed
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| 168 | result = true;
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| 169 | }
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| 170 | delete parser;
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| 171 | }
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| 172 | }
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[372] | 173 |
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| 174 |
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[387] | 175 | if (result) {
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[372] | 176 | mSceneGraph->AssignObjectIds();
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[387] | 177 | int intersectables, faces;
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| 178 | mSceneGraph->GetStatistics(intersectables, faces);
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| 179 | cout<<filename<<" parsed successfully."<<endl;
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| 180 | cout<<"#NUM_OBJECTS (Total numner of objects)\n"<<intersectables<<endl;
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| 181 | cout<<"#NUM_FACES (Total numner of faces)\n"<<faces<<endl;
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| 182 | }
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| 183 |
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[372] | 184 |
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| 185 | return result;
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| 186 | }
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| 187 |
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| 188 | bool
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| 189 | Preprocessor::ExportPreprocessedData(const string filename)
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| 190 | {
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| 191 | return false;
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| 192 | }
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| 193 |
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| 194 | bool
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| 195 | Preprocessor::BuildKdTree()
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| 196 | {
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| 197 | mKdTree = new KdTree;
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| 198 | // add mesh instances of the scene graph to the root of the tree
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| 199 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot();
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| 200 | mSceneGraph->CollectObjects(&root->mObjects);
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| 201 |
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| 202 | mKdTree->Construct();
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| 203 | return true;
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| 204 | }
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| 205 |
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| 206 | void
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| 207 | Preprocessor::KdTreeStatistics(ostream &s)
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| 208 | {
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| 209 | s<<mKdTree->GetStatistics();
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| 210 | }
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| 211 |
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| 212 | void
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| 213 | Preprocessor::BspTreeStatistics(ostream &s)
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| 214 | {
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| 215 | s << mBspTree->GetStatistics();
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| 216 | }
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| 217 |
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| 218 | bool
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| 219 | Preprocessor::Export( const string filename,
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| 220 | const bool scene,
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| 221 | const bool kdtree,
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| 222 | const bool bsptree
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| 223 | )
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| 224 | {
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| 225 | Exporter *exporter = Exporter::GetExporter(filename);
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| 226 |
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| 227 | if (exporter) {
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| 228 | if (scene)
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| 229 | exporter->ExportScene(mSceneGraph->mRoot);
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| 230 |
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| 231 | if (kdtree) {
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| 232 | exporter->SetWireframe();
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| 233 | exporter->ExportKdTree(*mKdTree);
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| 234 | }
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| 235 |
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| 236 | if (bsptree) {
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| 237 | //exporter->SetWireframe();
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| 238 | exporter->ExportBspTree(*mBspTree);
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| 239 | }
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| 240 |
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| 241 | delete exporter;
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| 242 | return true;
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| 243 | }
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| 244 |
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| 245 | return false;
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| 246 | }
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