1 | #ifndef _VIEWCELLS_PARSER_XERCES__H
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2 | #define _VIEWCELLS_PARSER_XERCES__H
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3 |
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4 | // ---------------------------------------------------------------------------
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5 | // Includes
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6 | // ---------------------------------------------------------------------------
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7 | #include <xercesc/sax/HandlerBase.hpp>
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8 | #include "Mesh.h"
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9 | #include "BoundingBoxConverter.h"
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10 |
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11 | #ifdef __WINDOWS__
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12 | #include <hash_map>
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13 | #else
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14 | #include <map>
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15 | #endif
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16 |
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17 | #ifdef PERFTIMER
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18 | #include "Timer/PerfTimer.h"
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19 | #endif
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20 |
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21 | namespace GtpVisibilityPreprocessor {
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22 |
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23 | XERCES_CPP_NAMESPACE_USE
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24 | XERCES_CPP_NAMESPACE_BEGIN
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25 | class AttributeList;
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26 | XERCES_CPP_NAMESPACE_END
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27 |
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28 | class VspBspTree;
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29 | class BspTree;
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30 | class ViewCellsManager;
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31 | class ViewCellsTree;
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32 | class VspTree;
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33 | class OspTree;
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34 | class VspNode;
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35 | class BvhNode;
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36 | class BvHierarchy;
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37 | class HierarchyManager;
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38 | class ObjectPvs;
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39 | class BspNode;
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40 |
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41 | /*
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42 | struct pvs_hash_compare
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43 | {
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44 | enum
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45 | {
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46 | bucket_size = 4,
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47 | min_buckets = 8
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48 | };
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49 |
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50 | size_t operator()(Intersectable *a) const
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51 | {
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52 | size_t h = (size_t)(a->GetId());// % 2000;
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53 | return h;
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54 | }
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55 |
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56 | bool operator()(int a, int b) const
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57 | {
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58 | return a < b;
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59 | }
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60 | };*/
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61 |
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62 |
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63 | #ifdef __WINDOWS__
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64 | typedef stdext::hash_map<int, Intersectable *> pvs_hash;
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65 | #else
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66 | typedef std::map<int, Intersectable *> pvs_hash;
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67 | #endif
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68 |
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69 | class ViewCellsParseHandlers: public HandlerBase
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70 | {
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71 | public:
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72 | // -----------------------------------------------------------------------
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73 | // Constructors and Destructor
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74 | // -----------------------------------------------------------------------
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75 | ViewCellsParseHandlers(ObjectContainer &pvsObjects,
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76 | ObjectContainer &preprocessorObjects,
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77 | BoundingBoxConverter *bconverter);
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78 | ~ViewCellsParseHandlers();
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79 |
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80 |
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81 | // -----------------------------------------------------------------------
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82 | // Getter methods
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83 | // -----------------------------------------------------------------------
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84 | unsigned int GetElementCount()
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85 | {
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86 | return mElementCount;
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87 | }
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88 |
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89 | unsigned int GetAttrCount()
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90 | {
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91 | return mAttrCount;
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92 | }
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93 |
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94 | unsigned int GetCharacterCount()
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95 | {
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96 | return mCharacterCount;
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97 | }
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98 |
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99 | unsigned int GetSpaceCount()
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100 | {
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101 | return mSpaceCount;
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102 | }
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103 |
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104 |
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105 | // -----------------------------------------------------------------------
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106 | // Handlers for the SAX DocumentHandler interface
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107 | // -----------------------------------------------------------------------
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108 | void endElement(const XMLCh* const name);
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109 | void startElement(const XMLCh* const name, AttributeList& attributes);
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110 | void characters(const XMLCh* const chars, const unsigned int length);
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111 | void ignorableWhitespace(const XMLCh* const chars, const unsigned int length);
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112 | void resetDocument();
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113 |
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114 | void CreateViewCellsManager();
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115 |
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116 |
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117 | /////////////////////////
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118 |
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119 | VspBspTree *mVspBspTree;
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120 | HierarchyManager *mHierarchyManager;
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121 |
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122 | BspTree *mBspTree;
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123 | ViewCellsTree *mViewCellsTree;
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124 | VspTree *mVspTree;
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125 |
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126 | BspNode *mCurrentBspNode;
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127 | BvhNode *mCurrentBvhNode;
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128 | KdNode *mCurrentOspNode;
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129 | VspNode *mCurrentVspNode;
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130 |
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131 | ViewCell *mCurrentViewCell;
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132 |
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133 | BspNode *mBspRoot;
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134 | VspNode *mVspRoot;
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135 | ViewCell *mViewCellRoot;
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136 |
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137 | int mUniqueObjectId;
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138 | vector<BvhLeaf *> mBvhLeaves;
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139 | //typedef map<int, ViewCell *> ViewCellsMap;
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140 | //ViewCellsMap mViewCells;
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141 | ViewCellContainer mViewCells;
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142 |
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143 | ViewCellsManager *mViewCellsManager;
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144 |
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145 | ObjectContainer &mPvsObjects;
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146 | const ObjectContainer &mPreprocessorObjects;
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147 |
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148 | BoundingBoxConverter *mBoundingBoxConverter;
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149 | AxisAlignedBox3 mViewSpaceBox;
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150 | IndexedBoundingBoxContainer mIBoundingBoxes;
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151 |
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152 | /// current state of the parser
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153 | int mCurrentState;
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154 |
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155 | enum {
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156 | PARSE_OPTIONS,
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157 | PARSE_VIEWCELLS,
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158 | PARSE_VIEWSPACE_HIERARCHY,
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159 | PARSE_OBJECTSPACE_HIERARCHY
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160 | };
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161 |
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162 | /// view space / object space hierarchy types
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163 | enum {BSP, VSP, OSP, BVH};
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164 |
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165 | int mViewSpaceHierarchyType;
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166 | int mObjectSpaceHierarchyType;
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167 | int nViewCells;
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168 | int nObjects;
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169 |
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170 | #ifdef PERFTIMER
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171 | PerfTimer mBoxTimer;
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172 | PerfTimer mPvsTimer;
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173 | PerfTimer mObjectTimer;
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174 | #endif
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175 |
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176 | pvs_hash mHashPvs;
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177 |
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178 | ////////////////////////////////
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179 |
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180 |
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181 | // Handlers for X3D
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182 |
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183 | void CreateHashVector();
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184 |
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185 | void StartBspLeaf(AttributeList& attributes);
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186 | void StartBspInterior(AttributeList& attributes);
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187 | void EndBspInterior();
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188 |
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189 | void StartVspLeaf(AttributeList& attributes);
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190 | void StartVspInterior(AttributeList& attributes);
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191 | void EndVspInterior();
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192 |
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193 | void StartViewCellPvs(ObjectPvs &pvs, const char *ptr);
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194 |
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195 | void EndViewCells();
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196 | void EndBoundingBoxes();
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197 |
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198 | void StartBspElement(std::string element, AttributeList& attributes);
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199 | void StartVspElement(std::string element, AttributeList& attributes);
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200 |
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201 | void StartViewSpaceHierarchy(AttributeList& attributes);
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202 | void StartObjectSpaceHierarchy(AttributeList& attributes);
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203 |
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204 | void StartBoundingBox(AttributeList& attributes);
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205 | void StartViewCell(AttributeList& attributes, const bool isLeaf);
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206 | void EndViewCellInterior();
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207 |
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208 | void StartViewSpaceHierarchyElement(const std::string &element, AttributeList& attributes);
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209 | void StartObjectSpaceHierarchyElement(const std::string &element, AttributeList& attributes);
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210 | void StartViewCellHierarchyElement(const std::string &element, AttributeList& attributes);
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211 |
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212 | void StartOspElement(std::string element, AttributeList& attributes);
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213 |
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214 | void StartOspLeaf(AttributeList& attributes);
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215 | void StartOspInterior(AttributeList& attributes);
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216 |
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217 | void CreateViewSpaceHierarchy();
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218 |
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219 | void StartBvhLeaf(AttributeList& attributes);
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220 | void StartBvhInterior(AttributeList& attributes);
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221 | void StartBvhElement(std::string element, AttributeList& attributes);
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222 |
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223 | void EndViewSpaceHierarchyInterior();
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224 | void EndObjectSpaceHierarchyInterior();
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225 |
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226 | void EndBvhInterior();
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227 | void EndOspInterior();
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228 |
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229 | void EndObjectSpaceHierarchy();
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230 |
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231 | void StartBvhLeafObjects(ObjectContainer &objects, const char *ptr);
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232 |
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233 | // -----------------------------------------------------------------------
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234 | // Handlers for the SAX ErrorHandler interface
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235 | // -----------------------------------------------------------------------
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236 |
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237 | void warning(const SAXParseException& exc);
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238 | void error(const SAXParseException& exc);
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239 | void fatalError(const SAXParseException& exc);
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240 |
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241 |
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242 | private:
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243 | // -----------------------------------------------------------------------
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244 | // Private data members
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245 | //
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246 | // fAttrCount
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247 | // fCharacterCount
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248 | // fElementCount
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249 | // fSpaceCount
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250 | // These are just counters that are run upwards based on the input
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251 | // from the document handlers.
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252 | // -----------------------------------------------------------------------
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253 | unsigned int mAttrCount;
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254 | unsigned int mCharacterCount;
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255 | unsigned int mElementCount;
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256 | unsigned int mSpaceCount;
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257 | };
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258 |
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259 | // ---------------------------------------------------------------------------
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260 | // This is a simple class that lets us do easy (though not terribly efficient)
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261 | // trancoding of XMLCh data to local code page for display.
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262 | // ---------------------------------------------------------------------------
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263 | class StrX
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264 | {
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265 | public :
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266 | // -----------------------------------------------------------------------
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267 | // Constructors and Destructor
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268 | // -----------------------------------------------------------------------
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269 | StrX(const XMLCh* const toTranscode)
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270 | {
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271 | // Call the private transcoding method
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272 | mLocalForm = XMLString::transcode(toTranscode);
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273 | }
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274 |
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275 | ~StrX()
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276 | {
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277 | XMLString::release(&mLocalForm);
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278 | }
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279 |
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280 | // -----------------------------------------------------------------------
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281 | // Getter methods
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282 | // -----------------------------------------------------------------------
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283 | const char* LocalForm() const
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284 | {
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285 | return mLocalForm;
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286 | }
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287 |
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288 | private :
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289 | // -----------------------------------------------------------------------
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290 | // Private data members
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291 | //
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292 | // fLocalForm
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293 | // This is the local code page form of the string.
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294 | // -----------------------------------------------------------------------
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295 | char* mLocalForm;
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296 | };
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297 |
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298 | inline XERCES_STD_QUALIFIER ostream&
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299 | operator<<(XERCES_STD_QUALIFIER ostream& target, const StrX& toDump)
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300 | {
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301 | target << toDump.LocalForm();
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302 | return target;
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303 | }
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304 | }
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305 |
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306 | #endif
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