[170] | 1 | // ---------------------------------------------------------------------------
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| 2 | // Includes for all the program files to see
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| 3 | // ---------------------------------------------------------------------------
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| 4 | #include <string.h>
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| 5 | #include <stdlib.h>
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| 6 | #include <iostream>
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| 7 | using namespace std;
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| 8 | #include <xercesc/util/PlatformUtils.hpp>
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[162] | 9 |
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[170] | 10 | // ---------------------------------------------------------------------------
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| 11 | // Includes
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| 12 | // ---------------------------------------------------------------------------
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| 13 | #include <xercesc/framework/StdInInputSource.hpp>
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| 14 | #include <xercesc/parsers/SAXParser.hpp>
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| 15 | #include <xercesc/util/OutOfMemoryException.hpp>
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| 16 |
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| 17 | // ---------------------------------------------------------------------------
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| 18 | // Includes
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| 19 | // ---------------------------------------------------------------------------
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| 20 | #include <xercesc/sax/AttributeList.hpp>
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| 21 | #include <xercesc/sax/SAXParseException.hpp>
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| 22 | #include <xercesc/sax/SAXException.hpp>
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| 23 |
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[162] | 24 | #include "X3dParser.h"
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| 25 |
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[170] | 26 | #include "X3dParserXerces.h"
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| 27 | #include "Mesh.h"
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| 28 | #include "SceneGraph.h"
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[162] | 29 |
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[170] | 30 |
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| 31 |
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| 32 | // ---------------------------------------------------------------------------
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| 33 | // Local data
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| 34 | //
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| 35 | // doNamespaces
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| 36 | // Indicates whether namespace processing should be enabled or not.
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| 37 | // The default is no, but -n overrides that.
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| 38 | //
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| 39 | // doSchema
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| 40 | // Indicates whether schema processing should be enabled or not.
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| 41 | // The default is no, but -s overrides that.
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| 42 | //
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| 43 | // schemaFullChecking
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| 44 | // Indicates whether full schema constraint checking should be enabled or not.
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| 45 | // The default is no, but -s overrides that.
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| 46 | //
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| 47 | // valScheme
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| 48 | // Indicates what validation scheme to use. It defaults to 'auto', but
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| 49 | // can be set via the -v= command.
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| 50 | // ---------------------------------------------------------------------------
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| 51 | static bool doNamespaces = false;
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| 52 | static bool doSchema = false;
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| 53 | static bool schemaFullChecking = false;
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| 54 | static SAXParser::ValSchemes valScheme = SAXParser::Val_Auto;
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| 55 |
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| 56 |
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| 57 |
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| 58 |
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| 59 |
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| 60 | // ---------------------------------------------------------------------------
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| 61 | // StdInParseHandlers: Constructors and Destructor
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| 62 | // ---------------------------------------------------------------------------
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| 63 | X3dParseHandlers::X3dParseHandlers(SceneGraphNode *root) :
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| 64 | fElementCount(0)
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| 65 | , fAttrCount(0)
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| 66 | , fCharacterCount(0)
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| 67 | , fSpaceCount(0)
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[162] | 68 | {
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[170] | 69 | currentNode = root;
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[162] | 70 | }
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| 71 |
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[170] | 72 | X3dParseHandlers::~X3dParseHandlers()
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| 73 | {
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| 74 | }
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[162] | 75 |
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[170] | 76 |
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| 77 | // ---------------------------------------------------------------------------
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| 78 | // StdInParseHandlers: Implementation of the SAX DocumentHandler interface
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| 79 | // ---------------------------------------------------------------------------
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| 80 | void X3dParseHandlers::endElement(const XMLCh* const name)
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[162] | 81 | {
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[170] | 82 | StrX lname(name);
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| 83 | string element(lname.localForm());
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| 84 | if (element == "Shape")
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| 85 | EndShape();
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| 86 | }
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[162] | 87 |
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[170] | 88 | void
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| 89 | X3dParseHandlers::EndShape()
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| 90 | {
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| 91 | currentMesh->Preprocess();
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| 92 | // make an instance of this mesh
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| 93 | MeshInstance *mi = new MeshInstance(currentMesh);
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| 94 | currentNode->mGeometry.push_back(mi);
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| 95 | currentMesh = NULL;
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| 96 | }
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[162] | 97 |
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[170] | 98 | void
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| 99 | X3dParseHandlers::StartIndexedFaceSet(
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| 100 | AttributeList& attributes)
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| 101 | {
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| 102 | int len = attributes.getLength();
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| 103 | int i;
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| 104 | VertexIndexContainer vertices;
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[162] | 105 |
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[170] | 106 | for (i=0; i < len; i++) {
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| 107 | string attrName(StrX(attributes.getName(i)).localForm());
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| 108 | if (attrName == "coordIndex") {
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| 109 | StrX attrValue(attributes.getValue(i));
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| 110 | // handle coordIndex
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| 111 | vertices.clear();
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| 112 | const char *ptr = attrValue.localForm();
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| 113 | char *endptr;
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| 114 | while(1) {
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| 115 | int index = strtol(ptr, &endptr, 10);
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| 116 | if (ptr == endptr || index == -1) {
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| 117 | if (vertices.size() > 2) {
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| 118 | Face *face = new Face(vertices);
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| 119 | currentMesh->mFaces.push_back(face);
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| 120 | }
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| 121 | vertices.clear();
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| 122 | if (ptr == endptr)
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| 123 | break;
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| 124 | } else {
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| 125 | vertices.push_back(index);
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| 126 | }
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| 127 | ptr = endptr;
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| 128 | }
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| 129 | }
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[162] | 130 | }
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| 131 | }
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| 132 |
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[170] | 133 | void
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| 134 | X3dParseHandlers::StartMaterial(
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| 135 | AttributeList& attributes)
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[162] | 136 | {
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[170] | 137 | int len = attributes.getLength();
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| 138 | int i;
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| 139 | if (!currentMesh->mMaterial)
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| 140 | currentMesh->mMaterial = new Material;
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| 141 | for (i=0; i < len; i++) {
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| 142 | string attrName(StrX(attributes.getName(i)).localForm());
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| 143 | StrX attrValue(attributes.getValue(i));
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| 144 | const char *ptr = attrValue.localForm();
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| 145 | if (attrName == "diffuseColor") {
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| 146 | float r, g, b;
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| 147 | if (sscanf(ptr, "%f %f %f", &r, &g, &b) == 3)
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| 148 | currentMesh->mMaterial->mDiffuseColor = RgbColor(r, g, b);
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| 149 | }
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| 150 | }
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[162] | 151 | }
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| 152 |
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[170] | 153 | void
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| 154 | X3dParseHandlers::StartCoordinate(
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| 155 | AttributeList& attributes)
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[162] | 156 | {
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[170] | 157 | int len = attributes.getLength();
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| 158 | int i;
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| 159 | VertexContainer vertices;
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| 160 | for (i=0; i < len; i++) {
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| 161 | string attrName(StrX(attributes.getName(i)).localForm());
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| 162 | if (attrName == "point") {
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| 163 | StrX attrValue(attributes.getValue(i));
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| 164 | const char *ptr = attrValue.localForm();
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| 165 | char *endptr;
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| 166 | while(1) {
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| 167 | float x = strtod(ptr, &endptr);
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| 168 | if (ptr == endptr)
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| 169 | break;
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| 170 | ptr = endptr;
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| 171 | float y = strtod(ptr, &endptr);
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| 172 | if (ptr == endptr)
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| 173 | break;
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| 174 | ptr = endptr;
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| 175 | float z = strtod(ptr, &endptr);
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| 176 | if (ptr == endptr)
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| 177 | break;
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| 178 | ptr = endptr;
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| 179 | if (*ptr == ',')
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| 180 | ptr++;
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| 181 | Vector3 v(x, y, z);
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| 182 | vertices.push_back(v);
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| 183 | }
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| 184 | currentMesh->mVertices = vertices;
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| 185 | }
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| 186 | }
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[162] | 187 | }
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| 188 |
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[170] | 189 |
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| 190 | void
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| 191 | X3dParseHandlers::startElement(const XMLCh* const name,
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| 192 | AttributeList& attributes)
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[162] | 193 | {
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[170] | 194 | StrX lname(name);
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| 195 | string element(lname.localForm());
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| 196 |
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| 197 | if (element == "IndexedFaceSet") {
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| 198 | // create a new mesh node in the scene graph
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| 199 | StartIndexedFaceSet(attributes);
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| 200 | }
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| 201 |
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| 202 | if (element == "Shape") {
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| 203 | cout<<"+";
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| 204 | currentMesh = new Mesh;
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| 205 | }
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| 206 |
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| 207 | if (element == "Coordinate") {
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| 208 | if (currentMesh)
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| 209 | StartCoordinate(attributes);
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| 210 | }
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| 211 |
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| 212 | if (element == "Material") {
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| 213 | StartMaterial(attributes);
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| 214 | }
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| 215 |
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| 216 | fElementCount++;
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| 217 | fAttrCount += attributes.getLength();
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[162] | 218 | }
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| 219 |
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[170] | 220 | void
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| 221 | X3dParseHandlers::characters(const XMLCh* const chars,
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| 222 | const unsigned int length)
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[162] | 223 | {
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[170] | 224 | fCharacterCount += length;
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[162] | 225 | }
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| 226 |
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[170] | 227 | void
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| 228 | X3dParseHandlers::ignorableWhitespace(const XMLCh* const chars,
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| 229 | const unsigned int length)
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[162] | 230 | {
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[170] | 231 | fSpaceCount += length;
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[162] | 232 | }
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| 233 |
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[170] | 234 | void
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| 235 | X3dParseHandlers::resetDocument()
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[162] | 236 | {
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[170] | 237 | fAttrCount = 0;
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| 238 | fCharacterCount = 0;
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| 239 | fElementCount = 0;
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| 240 | fSpaceCount = 0;
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[162] | 241 | }
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| 242 |
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[170] | 243 |
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| 244 |
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| 245 | // ---------------------------------------------------------------------------
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| 246 | // StdInParseHandlers: Overrides of the SAX ErrorHandler interface
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| 247 | // ---------------------------------------------------------------------------
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| 248 | void
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| 249 | X3dParseHandlers::error(const SAXParseException& e)
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[162] | 250 | {
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[170] | 251 | XERCES_STD_QUALIFIER cerr << "\nError at (file " << StrX(e.getSystemId())
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| 252 | << ", line " << e.getLineNumber()
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| 253 | << ", char " << e.getColumnNumber()
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| 254 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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| 255 | }
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[162] | 256 |
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[170] | 257 | void
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| 258 | X3dParseHandlers::fatalError(const SAXParseException& e)
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[162] | 259 | {
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[170] | 260 | XERCES_STD_QUALIFIER cerr << "\nFatal Error at (file " << StrX(e.getSystemId())
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| 261 | << ", line " << e.getLineNumber()
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| 262 | << ", char " << e.getColumnNumber()
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| 263 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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[162] | 264 | }
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| 265 |
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[170] | 266 | void
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| 267 | X3dParseHandlers::warning(const SAXParseException& e)
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[162] | 268 | {
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[170] | 269 | XERCES_STD_QUALIFIER cerr << "\nWarning at (file " << StrX(e.getSystemId())
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| 270 | << ", line " << e.getLineNumber()
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| 271 | << ", char " << e.getColumnNumber()
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| 272 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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[162] | 273 | }
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| 274 |
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[170] | 275 |
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| 276 | bool
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| 277 | X3dParser::ParseFile(const string filename,
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| 278 | SceneGraphNode **root)
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| 279 | {
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| 280 | // Initialize the XML4C system
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| 281 | try {
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| 282 | XMLPlatformUtils::Initialize();
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| 283 | }
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| 284 |
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| 285 | catch (const XMLException& toCatch)
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| 286 | {
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| 287 | XERCES_STD_QUALIFIER cerr << "Error during initialization! Message:\n"
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| 288 | << StrX(toCatch.getMessage()) << XERCES_STD_QUALIFIER endl;
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| 289 | return false;
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| 290 | }
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| 291 |
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| 292 |
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| 293 | //
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| 294 | // Create a SAX parser object. Then, according to what we were told on
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| 295 | // the command line, set the options.
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| 296 | //
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| 297 | SAXParser* parser = new SAXParser;
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| 298 | parser->setValidationScheme(valScheme);
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| 299 | parser->setDoNamespaces(doNamespaces);
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| 300 | parser->setDoSchema(doSchema);
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| 301 | parser->setValidationSchemaFullChecking(schemaFullChecking);
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| 302 |
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| 303 |
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| 304 | //
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| 305 | // Create our SAX handler object and install it on the parser, as the
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| 306 | // document and error handler. We are responsible for cleaning them
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| 307 | // up, but since its just stack based here, there's nothing special
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| 308 | // to do.
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| 309 | //
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| 310 | *root = new SceneGraphNode;
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| 311 | X3dParseHandlers handler(*root);
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| 312 | parser->setDocumentHandler(&handler);
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| 313 | parser->setErrorHandler(&handler);
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| 314 |
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| 315 | unsigned long duration;
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| 316 | int errorCount = 0;
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| 317 | // create a faux scope so that 'src' destructor is called before
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| 318 | // XMLPlatformUtils::Terminate
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| 319 | {
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| 320 | //
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| 321 | // Kick off the parse and catch any exceptions. Create a standard
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| 322 | // input input source and tell the parser to parse from that.
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| 323 | //
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| 324 | // StdInInputSource src;
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| 325 | try
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| 326 | {
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| 327 | const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
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| 328 | parser->parse(filename.c_str());
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| 329 | const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
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| 330 | duration = endMillis - startMillis;
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| 331 | errorCount = parser->getErrorCount();
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| 332 | }
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| 333 | catch (const OutOfMemoryException&)
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| 334 | {
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| 335 | XERCES_STD_QUALIFIER cerr << "OutOfMemoryException" << XERCES_STD_QUALIFIER endl;
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| 336 | errorCount = 2;
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| 337 | return false;
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| 338 | }
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| 339 | catch (const XMLException& e)
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| 340 | {
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| 341 | XERCES_STD_QUALIFIER cerr << "\nError during parsing: \n"
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| 342 | << StrX(e.getMessage())
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| 343 | << "\n" << XERCES_STD_QUALIFIER endl;
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| 344 | errorCount = 1;
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| 345 | return false;
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| 346 | }
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| 347 |
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| 348 | // Print out the stats that we collected and time taken
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| 349 | if (!errorCount) {
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| 350 | XERCES_STD_QUALIFIER cout << filename << ": " << duration << " ms ("
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| 351 | << handler.getElementCount() << " elems, "
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| 352 | << handler.getAttrCount() << " attrs, "
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| 353 | << handler.getSpaceCount() << " spaces, "
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| 354 | << handler.getCharacterCount() << " chars)" << XERCES_STD_QUALIFIER endl;
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| 355 | }
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| 356 | }
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| 357 |
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| 358 | //
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| 359 | // Delete the parser itself. Must be done prior to calling Terminate, below.
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| 360 | //
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| 361 | delete parser;
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| 362 |
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| 363 | XMLPlatformUtils::Terminate();
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| 364 |
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| 365 | if (errorCount > 0)
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| 366 | return false;
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| 367 | else
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| 368 | return true;
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[162] | 369 | }
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| 370 |
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[170] | 371 |
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