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/****************************************************************************
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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 \/)\/ *
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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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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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****************************************************************************/
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#include <iostream>
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#include <vector>
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#include "../nexus.h"
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#include "../crude.h"
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#include "../vert_remap.h"
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#include "../vfile.h"
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using namespace std;
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using namespace vcg;
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using namespace nxs;
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struct RemapLink {
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unsigned int rel_vert;
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unsigned int patch;
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unsigned int abs_vert;
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};
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int main(int argc, char *argv[]) {
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if(argc <= 2) {
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cerr << "Usage: " << argv[0] << " <crude input> <nexus output>\n";
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return -1;
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}
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Crude crude;
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if(!crude.Load(argv[1])) {
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cerr << "Could not load crude:" << argv[1] << endl;
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return -1;
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}
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VertRemap vert_remap;
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if(!vert_remap.Load(argv[1])) {
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cerr << "Could not load vert_remap files: " << argv[1] << "\n";
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return -1;
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}
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VFile<unsigned int> face_remap;
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if(!face_remap.Load(argv[1] + string(".rmf"))) {
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cerr << "Could not load face_remap file: " << argv[1] << ".frm\n";
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return -1;
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}
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Nexus nexus;
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if(!nexus.Create(argv[2])) {
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return -1;
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}
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//lets count faces,
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vector<unsigned int> patch_faces;
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for(unsigned int i = 0; i < face_remap.Size(); i++) {
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unsigned int patch = face_remap[i];
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assert(patch != 0xffffffff);
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if(patch >= patch_faces.size())
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patch_faces.resize(patch+1, 0);
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patch_faces[patch]++;
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nexus.totface++;
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}
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cerr << "Vertremap size: " << vert_remap.Size() << endl;
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//lets count vertices
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vector<unsigned int> patch_verts;
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patch_verts.resize(patch_faces.size(), 0);
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unsigned int unreferenced = 0;
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// counting vertices using border_size for number of vertices
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for(unsigned int i = 0; i < vert_remap.all.Size(); i++) {
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unsigned int patch = vert_remap.all[i];
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if(patch == 0xffffffff) {
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unreferenced++;
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continue;
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}
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assert(patch < patch_verts.size());
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patch_verts[patch]++;
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nexus.totvert++;
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}
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unsigned int totbord = 0;
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VFile<MFHash::Bucket> &border = vert_remap.borders.buffer;
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for(unsigned int i = 0; i < border.Size(); i++) {
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MFHash::Bucket &bucket = border[i];
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if(bucket.key == 0xffffffff) continue;
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unsigned int patch = bucket.value;
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assert(patch < patch_verts.size());
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patch_verts[patch]++;
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totbord++;
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// nexus.totvert++; (?)
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}
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if(unreferenced)
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cerr << "Warning: found " << unreferenced << " vertices.\n";
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cerr << "Triangles found: " << nexus.totface << endl;
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cerr << "Vertex found: " << nexus.totvert << endl;
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cerr << "Borders found: " << totbord << endl;
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nexus.index.resize(patch_verts.size());
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//now that we know various sizes, lets allocate space
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for(unsigned int i = 0; i < nexus.index.size(); i++) {
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Nexus::Entry &entry = nexus.index[i];
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if(patch_faces[i] == 0 || patch_verts[i] == 0)
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cerr << "Warning! Empty patch.\n";
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entry.patch_offset = nexus.totchunks;
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entry.patch_size = Patch::ChunkSize(patch_verts[i], patch_faces[i]);
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nexus.totchunks += entry.patch_size;
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entry.border_offset = 0;
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}
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nexus.patches.Resize(nexus.totchunks);
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//now we sort the faces into the patches (but still using absolute indexing
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//instead of relative indexing
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for(unsigned int i = 0; i < crude.face.Size(); i++) {
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Crude::Face &face = crude.face[i];
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unsigned int n = face_remap[i];
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Nexus::Entry &entry = nexus.index[n];
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Patch patch = nexus.GetPatch(n);
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if(entry.border_offset == 0) { //first time we find patch
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entry.border_offset = 0xffffffff;
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patch.VertSize() = 0;
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patch.FaceSize() = 0;
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}
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Crude::Face *faces = (Crude::Face *)patch.VertBegin();
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faces[patch.FaceSize()] = face;
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patch.FaceSize()++;
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}
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//finally for every patch we collect the vertices
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return 0;
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}
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