[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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[182] | 26 | #include "X3dParserXerces.h"
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[170] | 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 | // Local data
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| 32 | //
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| 33 | // doNamespaces
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| 34 | // Indicates whether namespace processing should be enabled or not.
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| 35 | // The default is no, but -n overrides that.
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| 36 | //
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| 37 | // doSchema
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| 38 | // Indicates whether schema processing should be enabled or not.
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| 39 | // The default is no, but -s overrides that.
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| 40 | //
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| 41 | // schemaFullChecking
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| 42 | // Indicates whether full schema constraint checking should be enabled or not.
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| 43 | // The default is no, but -s overrides that.
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| 44 | //
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| 45 | // valScheme
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| 46 | // Indicates what validation scheme to use. It defaults to 'auto', but
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| 47 | // can be set via the -v= command.
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| 48 | // ---------------------------------------------------------------------------
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| 49 | static bool doNamespaces = false;
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| 50 | static bool doSchema = false;
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| 51 | static bool schemaFullChecking = false;
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| 52 | static SAXParser::ValSchemes valScheme = SAXParser::Val_Auto;
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| 53 |
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| 54 |
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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 | // StdInParseHandlers: Constructors and Destructor
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| 60 | // ---------------------------------------------------------------------------
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| 61 | X3dParseHandlers::X3dParseHandlers(SceneGraphNode *root) :
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[176] | 62 | mElementCount(0)
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| 63 | , mAttrCount(0)
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| 64 | , mCharacterCount(0)
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| 65 | , mSpaceCount(0)
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[162] | 66 | {
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[176] | 67 | mCurrentNode = root;
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[162] | 68 | }
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| 69 |
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[170] | 70 | X3dParseHandlers::~X3dParseHandlers()
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| 71 | {
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| 72 | }
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[162] | 73 |
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[170] | 74 |
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| 75 | // ---------------------------------------------------------------------------
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| 76 | // StdInParseHandlers: Implementation of the SAX DocumentHandler interface
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| 77 | // ---------------------------------------------------------------------------
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| 78 | void X3dParseHandlers::endElement(const XMLCh* const name)
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[162] | 79 | {
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[170] | 80 | StrX lname(name);
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[176] | 81 | string element(lname.LocalForm());
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[170] | 82 | if (element == "Shape")
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| 83 | EndShape();
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| 84 | }
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[162] | 85 |
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[170] | 86 | void
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| 87 | X3dParseHandlers::EndShape()
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| 88 | {
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[176] | 89 | if (mCurrentMesh->mFaces.size()) {
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| 90 | mCurrentMesh->Preprocess();
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| 91 | // make an instance of this mesh
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| 92 | MeshInstance *mi = new MeshInstance(mCurrentMesh);
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| 93 | mCurrentNode->mGeometry.push_back(mi);
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| 94 | } else {
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| 95 | cout<<"X";
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| 96 | delete mCurrentMesh;
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| 97 | }
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| 98 | mCurrentMesh = NULL;
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[170] | 99 | }
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[162] | 100 |
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[170] | 101 | void
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| 102 | X3dParseHandlers::StartIndexedFaceSet(
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| 103 | AttributeList& attributes)
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| 104 | {
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| 105 | int len = attributes.getLength();
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| 106 | int i;
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| 107 | VertexIndexContainer vertices;
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[162] | 108 |
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[170] | 109 | for (i=0; i < len; i++) {
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[176] | 110 | string attrName(StrX(attributes.getName(i)).LocalForm());
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[170] | 111 | if (attrName == "coordIndex") {
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| 112 | StrX attrValue(attributes.getValue(i));
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| 113 | // handle coordIndex
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| 114 | vertices.clear();
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[176] | 115 | const char *ptr = attrValue.LocalForm();
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[170] | 116 | char *endptr;
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| 117 | while(1) {
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| 118 | int index = strtol(ptr, &endptr, 10);
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| 119 | if (ptr == endptr || index == -1) {
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| 120 | if (vertices.size() > 2) {
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| 121 | Face *face = new Face(vertices);
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[176] | 122 | mCurrentMesh->mFaces.push_back(face);
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[170] | 123 | }
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| 124 | vertices.clear();
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| 125 | if (ptr == endptr)
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| 126 | break;
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| 127 | } else {
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| 128 | vertices.push_back(index);
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| 129 | }
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| 130 | ptr = endptr;
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| 131 | }
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| 132 | }
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[162] | 133 | }
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| 134 | }
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| 135 |
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[170] | 136 | void
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| 137 | X3dParseHandlers::StartMaterial(
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| 138 | AttributeList& attributes)
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[162] | 139 | {
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[170] | 140 | int len = attributes.getLength();
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| 141 | int i;
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[176] | 142 | if (!mCurrentMesh->mMaterial)
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| 143 | mCurrentMesh->mMaterial = new Material;
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[170] | 144 | for (i=0; i < len; i++) {
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[176] | 145 | string attrName(StrX(attributes.getName(i)).LocalForm());
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[170] | 146 | StrX attrValue(attributes.getValue(i));
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[176] | 147 | const char *ptr = attrValue.LocalForm();
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[170] | 148 | if (attrName == "diffuseColor") {
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| 149 | float r, g, b;
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| 150 | if (sscanf(ptr, "%f %f %f", &r, &g, &b) == 3)
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[176] | 151 | mCurrentMesh->mMaterial->mDiffuseColor = RgbColor(r, g, b);
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[170] | 152 | }
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| 153 | }
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[162] | 154 | }
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| 155 |
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[170] | 156 | void
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| 157 | X3dParseHandlers::StartCoordinate(
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| 158 | AttributeList& attributes)
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[162] | 159 | {
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[170] | 160 | int len = attributes.getLength();
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| 161 | int i;
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| 162 | VertexContainer vertices;
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| 163 | for (i=0; i < len; i++) {
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[176] | 164 | string attrName(StrX(attributes.getName(i)).LocalForm());
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[170] | 165 | if (attrName == "point") {
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| 166 | StrX attrValue(attributes.getValue(i));
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[176] | 167 | const char *ptr = attrValue.LocalForm();
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[170] | 168 | char *endptr;
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| 169 | while(1) {
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| 170 | float x = strtod(ptr, &endptr);
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| 171 | if (ptr == endptr)
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| 172 | break;
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| 173 | ptr = endptr;
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| 174 | float y = strtod(ptr, &endptr);
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| 175 | if (ptr == endptr)
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| 176 | break;
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| 177 | ptr = endptr;
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| 178 | float z = strtod(ptr, &endptr);
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| 179 | if (ptr == endptr)
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| 180 | break;
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| 181 | ptr = endptr;
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| 182 | if (*ptr == ',')
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| 183 | ptr++;
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| 184 | Vector3 v(x, y, z);
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| 185 | vertices.push_back(v);
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| 186 | }
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[176] | 187 | mCurrentMesh->mVertices = vertices;
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[170] | 188 | }
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| 189 | }
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[162] | 190 | }
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| 191 |
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[170] | 192 |
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| 193 | void
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| 194 | X3dParseHandlers::startElement(const XMLCh* const name,
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| 195 | AttributeList& attributes)
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[162] | 196 | {
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[170] | 197 | StrX lname(name);
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[176] | 198 | string element(lname.LocalForm());
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[170] | 199 |
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| 200 | if (element == "IndexedFaceSet") {
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| 201 | // create a new mesh node in the scene graph
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| 202 | StartIndexedFaceSet(attributes);
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| 203 | }
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| 204 |
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| 205 | if (element == "Shape") {
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| 206 | cout<<"+";
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[176] | 207 | mCurrentMesh = new Mesh;
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[170] | 208 | }
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| 209 |
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| 210 | if (element == "Coordinate") {
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[176] | 211 | if (mCurrentMesh)
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[170] | 212 | StartCoordinate(attributes);
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| 213 | }
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| 214 |
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| 215 | if (element == "Material") {
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| 216 | StartMaterial(attributes);
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| 217 | }
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| 218 |
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[176] | 219 | mElementCount++;
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| 220 | mAttrCount += attributes.getLength();
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[162] | 221 | }
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| 222 |
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[170] | 223 | void
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| 224 | X3dParseHandlers::characters(const XMLCh* const chars,
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| 225 | const unsigned int length)
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[162] | 226 | {
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[176] | 227 | mCharacterCount += length;
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[162] | 228 | }
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| 229 |
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[170] | 230 | void
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| 231 | X3dParseHandlers::ignorableWhitespace(const XMLCh* const chars,
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| 232 | const unsigned int length)
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[162] | 233 | {
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[176] | 234 | mSpaceCount += length;
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[162] | 235 | }
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| 236 |
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[170] | 237 | void
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| 238 | X3dParseHandlers::resetDocument()
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[162] | 239 | {
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[176] | 240 | mAttrCount = 0;
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| 241 | mCharacterCount = 0;
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| 242 | mElementCount = 0;
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| 243 | mSpaceCount = 0;
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[162] | 244 | }
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| 245 |
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[170] | 246 |
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| 247 |
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| 248 | // ---------------------------------------------------------------------------
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| 249 | // StdInParseHandlers: Overrides of the SAX ErrorHandler interface
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| 250 | // ---------------------------------------------------------------------------
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| 251 | void
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| 252 | X3dParseHandlers::error(const SAXParseException& e)
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[162] | 253 | {
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[170] | 254 | XERCES_STD_QUALIFIER cerr << "\nError at (file " << StrX(e.getSystemId())
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| 255 | << ", line " << e.getLineNumber()
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| 256 | << ", char " << e.getColumnNumber()
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| 257 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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| 258 | }
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[162] | 259 |
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[170] | 260 | void
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| 261 | X3dParseHandlers::fatalError(const SAXParseException& e)
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[162] | 262 | {
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[170] | 263 | XERCES_STD_QUALIFIER cerr << "\nFatal Error at (file " << StrX(e.getSystemId())
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| 264 | << ", line " << e.getLineNumber()
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| 265 | << ", char " << e.getColumnNumber()
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| 266 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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[162] | 267 | }
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| 268 |
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[170] | 269 | void
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| 270 | X3dParseHandlers::warning(const SAXParseException& e)
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[162] | 271 | {
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[170] | 272 | XERCES_STD_QUALIFIER cerr << "\nWarning at (file " << StrX(e.getSystemId())
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| 273 | << ", line " << e.getLineNumber()
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| 274 | << ", char " << e.getColumnNumber()
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| 275 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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[162] | 276 | }
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| 277 |
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[170] | 278 |
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| 279 | bool
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| 280 | X3dParser::ParseFile(const string filename,
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| 281 | SceneGraphNode **root)
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| 282 | {
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| 283 | // Initialize the XML4C system
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| 284 | try {
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| 285 | XMLPlatformUtils::Initialize();
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| 286 | }
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| 287 |
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| 288 | catch (const XMLException& toCatch)
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| 289 | {
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| 290 | XERCES_STD_QUALIFIER cerr << "Error during initialization! Message:\n"
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| 291 | << StrX(toCatch.getMessage()) << XERCES_STD_QUALIFIER endl;
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| 292 | return false;
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| 293 | }
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| 294 |
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| 295 |
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| 296 | //
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| 297 | // Create a SAX parser object. Then, according to what we were told on
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| 298 | // the command line, set the options.
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| 299 | //
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| 300 | SAXParser* parser = new SAXParser;
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| 301 | parser->setValidationScheme(valScheme);
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| 302 | parser->setDoNamespaces(doNamespaces);
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| 303 | parser->setDoSchema(doSchema);
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| 304 | parser->setValidationSchemaFullChecking(schemaFullChecking);
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| 305 |
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| 306 |
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| 307 | //
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| 308 | // Create our SAX handler object and install it on the parser, as the
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| 309 | // document and error handler. We are responsible for cleaning them
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| 310 | // up, but since its just stack based here, there's nothing special
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| 311 | // to do.
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| 312 | //
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| 313 | *root = new SceneGraphNode;
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| 314 | X3dParseHandlers handler(*root);
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| 315 | parser->setDocumentHandler(&handler);
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| 316 | parser->setErrorHandler(&handler);
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| 317 |
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| 318 | unsigned long duration;
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| 319 | int errorCount = 0;
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| 320 | // create a faux scope so that 'src' destructor is called before
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| 321 | // XMLPlatformUtils::Terminate
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| 322 | {
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| 323 | //
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| 324 | // Kick off the parse and catch any exceptions. Create a standard
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| 325 | // input input source and tell the parser to parse from that.
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| 326 | //
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| 327 | // StdInInputSource src;
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| 328 | try
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| 329 | {
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| 330 | const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
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| 331 | parser->parse(filename.c_str());
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| 332 | const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
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| 333 | duration = endMillis - startMillis;
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| 334 | errorCount = parser->getErrorCount();
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| 335 | }
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| 336 | catch (const OutOfMemoryException&)
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| 337 | {
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| 338 | XERCES_STD_QUALIFIER cerr << "OutOfMemoryException" << XERCES_STD_QUALIFIER endl;
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| 339 | errorCount = 2;
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| 340 | return false;
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| 341 | }
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| 342 | catch (const XMLException& e)
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| 343 | {
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| 344 | XERCES_STD_QUALIFIER cerr << "\nError during parsing: \n"
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| 345 | << StrX(e.getMessage())
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| 346 | << "\n" << XERCES_STD_QUALIFIER endl;
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| 347 | errorCount = 1;
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| 348 | return false;
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| 349 | }
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[176] | 350 |
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[170] | 351 |
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| 352 | // Print out the stats that we collected and time taken
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| 353 | if (!errorCount) {
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| 354 | XERCES_STD_QUALIFIER cout << filename << ": " << duration << " ms ("
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[176] | 355 | << handler.GetElementCount() << " elems, "
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| 356 | << handler.GetAttrCount() << " attrs, "
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| 357 | << handler.GetSpaceCount() << " spaces, "
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| 358 | << handler.GetCharacterCount() << " chars)" << XERCES_STD_QUALIFIER endl;
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[170] | 359 | }
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| 360 | }
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| 361 |
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| 362 | //
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| 363 | // Delete the parser itself. Must be done prior to calling Terminate, below.
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| 364 | //
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| 365 | delete parser;
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| 366 |
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| 367 | XMLPlatformUtils::Terminate();
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| 368 |
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| 369 | if (errorCount > 0)
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| 370 | return false;
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| 371 | else
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| 372 | return true;
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[162] | 373 | }
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| 374 |
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[170] | 375 |
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