566 lines
18 KiB
C++
566 lines
18 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004-2008 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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#ifndef __VCGLIB_UTILDAE
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#define __VCGLIB_UTILDAE
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#include <wrap/io_trimesh/additionalinfo.h>
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#include <vcg/complex/trimesh/update/normal.h>
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#include <vcg/complex/trimesh/update/position.h>
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#include <vcg/complex/trimesh/append.h>
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#include <vcg/complex/trimesh/allocate.h>
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#include <wrap/io_trimesh/io_mask.h>
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#include <QtXml/QDomDocument>
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#include <QtCore/QFile>
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#include <QtXml/QXmlStreamWriter>
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#include <QtCore/QStringList>
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#include <QtCore/QMap>
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#include <vcg/space/point3.h>
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#include <vcg/space/texcoord2.h>
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#include <vcg/space/color4.h>
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#include <vcg/space/texcoord2.h>
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#include <wrap/callback.h>
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#include <vector>
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#include <wrap/gl/glu_tesselator.h>
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namespace vcg {
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namespace tri {
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namespace io {
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class InfoDAE : public AdditionalInfo
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{
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public:
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InfoDAE() :AdditionalInfo(){
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doc = NULL;
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textureIdMap.clear();
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}
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~InfoDAE(){
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if(doc!=NULL) delete doc;
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}
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QDomDocument* doc;
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QMap<QString,int> textureIdMap;
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};
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class UtilDAE
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{
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public:
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enum DAEError
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{
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E_NOERROR, // 0
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E_CANTOPEN, // 1
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E_NOGEOMETRYLIBRARY, // 2
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E_NOMESH, // 3
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E_NOVERTEXPOSITION, // 4
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E_NO3DVERTEXPOSITION, // 5
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E_NO3DSCENE, // 6
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E_INCOMPATIBLECOLLADA141FORMAT, //7
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E_UNREFERENCEBLEDCOLLADAATTRIBUTE, // 8
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E_NOPOLYGONALMESH, //9
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E_CANTSAVE //10
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};
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// These two classes is used for temporary storing of the
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// collected data of the polgons during the reading of files.
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template<typename VERTEX_TYPE>
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class MyPolygon
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{
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public:
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typedef VERTEX_TYPE BaseVertexType;
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int _nvert;
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std::vector<VERTEX_TYPE*> _pv;
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std::vector< vcg::TexCoord2<float> > _txc;
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MyPolygon(int n)
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:_nvert(n),_pv(_nvert),_txc(_nvert)
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{
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}
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};
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template<typename POLYGONAL_TYPE>
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class PolygonalMesh
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{
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public:
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typedef POLYGONAL_TYPE FaceType;
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enum PERWEDGEATTRIBUTETYPE {NONE = 0,NORMAL = 1,MULTITEXTURECOORD = 2,MULTICOLOR = 4};
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typedef typename FaceType::BaseVertexType VertexType;
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typedef VertexType* VertexPointer;
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typedef typename std::vector<VertexType>::iterator VertexIterator;
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typedef typename std::vector<FaceType>::iterator PolygonIterator;
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vcg::Box3<float> bbox;
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std::vector<VertexType> vert;
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std::vector<FaceType> _pols;
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void generatePointsVector(std::vector<std::vector<vcg::Point3f> >& v)
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{
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for(typename PolygonalMesh::PolygonIterator itp = _pols.begin();itp != _pols.end();++itp)
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{
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v.push_back(std::vector<vcg::Point3f>());
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for(typename std::vector<VertexPointer>::iterator itv = itp->_pv.begin();itv != itp->_pv.end();++itv)
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{
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v[v.size() - 1].push_back((*itv)->P());
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}
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}
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}
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void usePerWedgeAttributes(PERWEDGEATTRIBUTETYPE att,const unsigned int multitexture = 1,const unsigned int multicolor = 1)
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{
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if (att != NONE)
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{
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for(PolygonIterator itp = _pols.begin();itp != _pols.end();++itp)
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{
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if (att & MULTICOLOR) itp->usePerWedgeColor(multicolor);
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if (att & MULTITEXTURECOORD) itp->usePerWedgeMultiTexture(multitexture);
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if (att & NORMAL) itp->usePerWedgeNormal();
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}
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}
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}
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template<class TRIMESH>
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void triangulate(TRIMESH& mesh)
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{
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std::vector<std::vector<vcg::Point3f> > pl;
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mesh.vert.resize(vert.size());
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int multicoor = 0;
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//PolygonalMesh's points has been copied in TriangularMesh
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for(size_t jj = 0;jj < mesh.vert.size();++jj)
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mesh.vert[jj].P() = vert[jj].P();
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bool texen = mesh.face.IsWedgeTexEnabled();
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unsigned int totaltri = 0;
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for(size_t ii = 0;ii < _pols.size();++ii)
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totaltri += _pols[ii]._nvert - 2;
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mesh.face.resize(totaltri);
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//transform the polygonal mesh in a vector<vector<Point>>
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generatePointsVector(pl);
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int trioff = 0;
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//foreach Polygon
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for(size_t ii = 0;ii < pl.size();++ii)
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{
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std::vector<int> tx;
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std::vector<std::vector<vcg::Point3f> > pl2(1);
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pl2[0] = pl[ii];
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vcg::glu_tesselator::tesselate(pl2,tx);
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size_t ntri = tx.size() / 3;
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assert(tx.size() % 3 == 0);
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int polvert = 0;
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//foreach triangle
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for(size_t tr = 0;tr < ntri;++tr)
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{
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//typename TRIMESH::FaceType& f = mesh.face[tr];
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//typename TRIMESH::FaceType& f = mesh.face[tr];
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for(unsigned int tt = 0;tt < 3; ++tt)
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{
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mesh.face[trioff + tr].V(tt) = &(mesh.vert[_pols[ii]._pv[tx[3 * tr + tt]] - &(vert[0])]);
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//vcg::Point3f ppp = mesh.face[tr].V(tt)->P();
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if (texen)
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{
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/* f.WT(multicoor).U() = _pols[ii]._txc[polvert].U();
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f.WT(multicoor).V() = _pols[ii]._txc[polvert].V();
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f.WT(multicoor).N() = _pols[ii]._txc[polvert].N();*/
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}
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polvert = (polvert + 1) % _pols[ii]._nvert;
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}
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//mesh.face.push_back(f);
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}
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trioff += ntri;
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}
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assert(trioff == totaltri);
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}
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};
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static const char *ErrorMsg(int error)
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{
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static const char * dae_error_msg[] =
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{
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"No errors",
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"Can't open file",
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"File without a geometry library",
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"There isn't mesh in file",
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"The meshes in file haven't the vertex position attribute",
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"The importer assumes that the OpenMeshType uses a 3D point for the vertex position",
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"There isn't any scene in Collada file",
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"The input file is not compatible with COLLADA 1.41 standard format",
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"Collada file is trying to referece an attribute that is not in the file",
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"This version of Collada Importer support only triangular and polygonal mesh file"
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};
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if(error>9 || error<0) return "Unknown error";
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else return dae_error_msg[error];
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};
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protected:
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// This function take care of removing the standard '#' from the beginning of the url
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// For example
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// <instance_geometry url="#shape0-lib">
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// means that you have to search in the <library_geometries> for a node <geometry> with id = "shape0-lib"
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// you have to call this function to get ther right refernece name
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inline static void referenceToANodeAttribute(const QDomNode n,const QString& attr,QString& url_st)
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{
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url_st = n.toElement().attribute(attr);
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int sz = url_st.size() - 1;
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url_st = url_st.right(sz);
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assert(url_st.size() != 0);
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}
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inline static QDomNode findNodeBySpecificAttributeValue(const QDomNodeList& ndl,const QString& attrname,const QString& attrvalue)
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{
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int ndl_size = ndl.size();
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int ind = 0;
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while(ind < ndl_size)
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{
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QString st = ndl.at(ind).toElement().attribute(attrname);
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if (st == attrvalue)
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return ndl.at(ind);
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++ind;
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}
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return QDomNode();
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}
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inline static QDomNode findNodeBySpecificAttributeValue(const QDomNode n,const QString& tag,const QString& attrname,const QString& attrvalue)
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{
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return findNodeBySpecificAttributeValue(n.toElement().elementsByTagName(tag),attrname,attrvalue);
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}
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inline static QDomNode findNodeBySpecificAttributeValue(const QDomDocument n,const QString& tag,const QString& attrname,const QString& attrvalue)
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{
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return findNodeBySpecificAttributeValue(n.elementsByTagName(tag),attrname,attrvalue);
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}
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inline static bool isThereTag(const QDomNodeList& list)
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{
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return ((list.size() > 0) ? true : false);
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}
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inline static bool isThereTag(const QDomNode n,const QString& tagname)
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{
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return isThereTag(n.toElement().elementsByTagName(tagname));
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}
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inline static bool isThereTag(const QDomDocument n,const QString& tagname)
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{
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return isThereTag(n.elementsByTagName(tagname));
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}
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// Very important function that given a <vertices> element find one of the its attribute (like position, color etc)
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inline static QDomNode attributeSourcePerSimplex(const QDomNode n,const QDomDocument startpoint,const QString& sem)
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{
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QDomNodeList vertattr = n.toElement().elementsByTagName("input");
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for(int ind = 0;ind < vertattr.size();++ind)
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{
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if (vertattr.at(ind).toElement().attribute("semantic") == sem)
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{
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QString url;
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referenceToANodeAttribute(vertattr.at(ind),"source",url);
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return findNodeBySpecificAttributeValue(startpoint,"source","id",url);
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}
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}
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return QDomNode();
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}
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// This function is used to build up a list of strings that are scalar values.
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inline static void valueStringList(QStringList& res,const QDomNode srcnode,const QString& tag)
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{
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QDomNodeList list = srcnode.toElement().elementsByTagName(tag);
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assert(list.size() == 1);
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QString nd = list.at(0).firstChild().nodeValue();
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res = nd.simplified().split(" ",QString::SkipEmptyParts);
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if (res.last() == "")
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res.removeLast();
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// int emptyCount = res.removeAll(QString(""));
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// if(emptyCount>0) qDebug("- - - - - - - - valueStringList: Removed %i null strings when parsing tag %s",emptyCount,qPrintable(tag));
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// for(int i =0;i<res.size();++i)
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// qDebug("- - - - - - - - - - - - %3i = '%s'",i,qPrintable(res.at(i)));
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}
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/*inline static bool removeChildNode(QDomNodeList*/
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inline static bool removeChildNodeList(QDomNodeList& nodelst,const QString& tag = "", const QString& attribname = "", const QString& attribvalue = "")
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{
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for(int jj = 0;jj < nodelst.size();++jj)
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{
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removeChildNode(nodelst.at(jj),tag,attribname,attribvalue);
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}
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return true;
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}
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inline static bool removeChildNode(QDomNode node,const QString& tag = "", const QString& attribname = "", const QString& attribvalue = "")
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{
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QDomNodeList clst = node.childNodes();
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for(int ii = 0;ii < clst.size();++ii)
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{
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QDomNode oldchild = node.childNodes().at(ii);
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if (tag != "")
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{
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if ((attribname != "") && (attribvalue != ""))
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{
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if (clst.at(ii).toElement().attribute(attribname) == attribvalue)
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node.removeChild(oldchild);
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}
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else
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{
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QString nm = clst.at(ii).nodeName();
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if (clst.at(ii).nodeName() == tag)
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{
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node.removeChild(oldchild);
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}
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}
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}
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else node.removeChild(oldchild);
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}
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return true;
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}
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static void ParseRotationMatrix(vcg::Matrix44f& m,const std::vector<QDomNode>& t)
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{
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vcg::Matrix44f rotTmp;
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vcg::Matrix44f tmp;
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rotTmp.SetIdentity();
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tmp.SetIdentity();
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for(unsigned int ii = 0;ii < t.size();++ii)
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{
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QString rt = t[ii].firstChild().nodeValue();
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QStringList rtl = rt.split(" ");
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if (rtl.last() == "") rtl.removeLast();
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assert(rtl.size() == 4);
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tmp.SetRotateDeg(rtl.at(3).toFloat(),vcg::Point3f(rtl.at(0).toFloat(),rtl.at(1).toFloat(),rtl.at(2).toFloat()));
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rotTmp = rotTmp*tmp;
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}
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m = m * rotTmp;
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}
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static void ParseTranslation(vcg::Matrix44f& m,const QDomNode t)
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{
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assert(t.toElement().tagName() == "translate");
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QDomNode tr = t.firstChild();
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QString coord = tr.nodeValue();
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QStringList coordlist = coord.split(" ");
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if (coordlist.last() == "")
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coordlist.removeLast();
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assert(coordlist.size() == 3);
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m[0][0] = 1.0f;
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m[1][1] = 1.0f;
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m[2][2] = 1.0f;
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m[3][3] = 1.0f;
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m[0][3] = coordlist.at(0).toFloat();
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m[1][3] = coordlist.at(1).toFloat();
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m[2][3] = coordlist.at(2).toFloat();
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}
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static void ParseMatrixNode(vcg::Matrix44f& m,const QDomNode t)
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{
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assert(t.toElement().tagName() == "matrix");
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QDomNode tr = t.firstChild();
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QString coord = tr.nodeValue().simplified();
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qDebug("Parsing matrix node; text value is '%s'",qPrintable(coord));
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QStringList coordlist = coord.split(" ");
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if (coordlist.last() == "")
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coordlist.removeLast();
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assert(coordlist.size() == 16);
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for(int i=0;i<4;++i)
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{
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m[i][0] = coordlist.at(i*4+0).toFloat();
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m[i][1] = coordlist.at(i*4+1).toFloat();
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m[i][2] = coordlist.at(i*4+2).toFloat();
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m[i][3] = coordlist.at(i*4+3).toFloat();
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}
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}
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static void TransfMatrix(const QDomNode parentnode,const QDomNode presentnode,vcg::Matrix44f& m)
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{
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if (presentnode == parentnode) return;
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else
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{
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QDomNode par = presentnode.parentNode();
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std::vector<QDomNode> rotlist;
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QDomNode trans;
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for(int ch = 0;ch < par.childNodes().size();++ch)
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{
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if (par.childNodes().at(ch).nodeName() == "rotate")
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rotlist.push_back(par.childNodes().at(ch));
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else if (par.childNodes().at(ch).nodeName() == "translate")
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{
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trans = par.childNodes().at(ch);
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}
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}
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vcg::Matrix44f tmp;
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tmp.SetIdentity();
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if (!trans.isNull()) ParseTranslation(tmp,trans);
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ParseRotationMatrix(tmp,rotlist);
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m = m * tmp;
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TransfMatrix(parentnode,par,m);
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}
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}
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inline static int findOffSetForASingleSimplex(QDomNode node)
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{
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QDomNodeList wedatts = node.toElement().elementsByTagName("input");
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int max = 0;
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if (wedatts.size() == 0) return -1;
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else
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{
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for(int ii = 0;ii < wedatts.size();++ii)
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{
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int tmp = wedatts.at(ii).toElement().attribute("offset").toInt();
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if (tmp > max) max = tmp;
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}
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}
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return max + 1;
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}
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inline static int findStringListAttribute(QStringList& list,const QDomNode node,const QDomNode poly,const QDomDocument startpoint,const char* token)
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{
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int offset = 0;
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if (!node.isNull())
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{
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offset = node.toElement().attribute("offset").toInt();
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QDomNode st = attributeSourcePerSimplex(poly,startpoint,token);
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valueStringList(list,st,"float_array");
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}
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return offset;
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}
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/* Very important procedure
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it has the task to finde the name of the image node corresponding to a given material id,
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it assuemes that the material name that is passed have already been bound with the current bindings
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*/
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inline static QDomNode textureFinder(QString& boundMaterialName, QString &textureFileName, const QDomDocument doc)
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{
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boundMaterialName.remove('#');
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//library_material -> material -> instance_effect
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QDomNodeList lib_mat = doc.elementsByTagName("library_materials");
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if (lib_mat.size() != 1)
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return QDomNode();
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QDomNode material = findNodeBySpecificAttributeValue(lib_mat.at(0),QString("material"),QString("id"),boundMaterialName);
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if (material.isNull())
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return QDomNode();
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QDomNodeList in_eff = material.toElement().elementsByTagName("instance_effect");
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if (in_eff.size() == 0)
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return QDomNode();
|
|
QString url = in_eff.at(0).toElement().attribute("url");
|
|
if ((url.isNull()) || (url == ""))
|
|
return QDomNode();
|
|
url = url.remove('#');
|
|
qDebug("====== searching among library_effects the effect with id '%s' ",qPrintable(url));
|
|
//library_effects -> effect -> instance_effect
|
|
QDomNodeList lib_eff = doc.elementsByTagName("library_effects");
|
|
if (lib_eff.size() != 1)
|
|
return QDomNode();
|
|
QDomNode effect = findNodeBySpecificAttributeValue(lib_eff.at(0),QString("effect"),QString("id"),url);
|
|
if (effect.isNull())
|
|
return QDomNode();
|
|
QDomNodeList init_from = effect.toElement().elementsByTagName("init_from");
|
|
if (init_from.size() == 0)
|
|
return QDomNode();
|
|
QString img_id = init_from.at(0).toElement().text();
|
|
if ((img_id.isNull()) || (img_id == ""))
|
|
return QDomNode();
|
|
|
|
//library_images -> image
|
|
QDomNodeList libraryImageNodeList = doc.elementsByTagName("library_images");
|
|
qDebug("====== searching among library_images the effect with id '%s' ",qPrintable(img_id));
|
|
if (libraryImageNodeList.size() != 1)
|
|
return QDomNode();
|
|
QDomNode imageNode = findNodeBySpecificAttributeValue(libraryImageNodeList.at(0),QString("image"),QString("id"),img_id);
|
|
QDomNodeList initfromNode = imageNode.toElement().elementsByTagName("init_from");
|
|
textureFileName= initfromNode.at(0).firstChild().nodeValue();
|
|
qDebug("====== the image '%s' has a %i init_from nodes text '%s'",qPrintable(img_id),initfromNode.size(),qPrintable(textureFileName));
|
|
|
|
return imageNode;
|
|
}
|
|
|
|
static int indexTextureByImgNode(const QDomDocument doc,const QDomNode node)
|
|
{
|
|
QDomNodeList libim = doc.elementsByTagName(QString("library_images"));
|
|
if (libim.size() != 1)
|
|
return -1;
|
|
QDomNodeList imgs = libim.at(0).toElement().elementsByTagName("image");
|
|
|
|
int ii = 0;
|
|
bool found = false;
|
|
while((ii < imgs.size()) && (!found))
|
|
{
|
|
if (imgs.at(ii) == node)
|
|
found = true;
|
|
else ++ii;
|
|
}
|
|
if (found)
|
|
return ii;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
struct WedgeAttribute
|
|
{
|
|
QDomNode wnsrc;
|
|
QStringList wn;
|
|
int offnm;
|
|
|
|
QDomNode wtsrc;
|
|
QStringList wt;
|
|
int stride;
|
|
int offtx;
|
|
|
|
QDomNode wcsrc;
|
|
QStringList wc;
|
|
int offcl;
|
|
};
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|