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#pragma warning(disable: 4786) // disable warning C4786: symbol greater than 255
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#include <iostream>
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#include "TriMeshBuilder.h"
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#define my_max(x,y) ((x)>(y)?(x):(y))
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using namespace std;
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namespace IMesh
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{
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TriMeshBuilder::TriMeshBuilder(): did_call_get_trimesh(false)
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{
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// Register the default face set
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register_face_set();
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// Register the vertex position attribute. There is really no sense
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// in a mesh without geometry, so this is default.
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register_vertex_attribute("VA_POS", VA_POS);
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assert(VA_POS.idx == 0);
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}
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void TriMeshBuilder::clear()
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{
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// If a trimesh was not emitted, we remove any allocated dynamic memory
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if(!did_call_get_trimesh)
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clean_up();
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// Clear all variables
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TriMeshData::clear();
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did_call_get_trimesh = false;
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// Register the default face set
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register_face_set();
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// Register the vertex position attribute. There is really no sense
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// in a mesh without geometry, so this is default.
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register_vertex_attribute("VA_POS", VA_POS);
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assert(VA_POS.idx == 0);
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}
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TriMeshBuilder::~TriMeshBuilder()
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{
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// If a trimesh was not emitted, we remove allocated dynamic memory.
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if(!did_call_get_trimesh)
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clean_up();
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}
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int TriMeshBuilder::register_face_set()
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{
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assert(!did_call_get_trimesh);
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int n = face_sets.size();
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if(n==0)
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face_sets.push_back(new FaceSet);
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else
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face_sets.push_back(new FaceSet(*face_sets[0]));
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return n;
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}
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void TriMeshBuilder::register_face_colors()
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{
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assert(!did_call_get_trimesh);
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register_face_attribute("FA_COL", FA_COL);
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}
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void TriMeshBuilder::register_face_normals()
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{
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assert(!did_call_get_trimesh);
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register_face_attribute("FA_NORM", FA_NORM);
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}
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void TriMeshBuilder::register_vertex_normals(int face_set)
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{
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assert(!did_call_get_trimesh);
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register_vertex_attribute("VA_NORM", VA_NORM, face_set);
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}
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void TriMeshBuilder::register_vertex_colors(int face_set)
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{
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assert(!did_call_get_trimesh);
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register_vertex_attribute("VA_COL", VA_COL, face_set);
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}
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void TriMeshBuilder::register_vertex_texcoords(int face_set)
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{
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assert(!did_call_get_trimesh);
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register_vertex_attribute("VA_TEX", VA_TEX, face_set);
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}
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void TriMeshBuilder::add_face(const CGLA::Vec3i& face)
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{
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assert(!did_call_get_trimesh);
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++faces_size;
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int i; // To placate MSVC 6.0 ... which sucks
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for(i=0;i<face_sets.size();++i)
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face_sets[i]->push_back(face);
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}
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TriMesh* TriMeshBuilder::get_trimesh()
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{
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assert(!did_call_get_trimesh);
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#ifndef NDEBUG
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int face_set_no; // To placate MSVC 6.0 ... which sucks
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for(face_set_no=0;face_set_no<face_sets.size();++face_set_no)
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{
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int n = face_sets[face_set_no]->size();
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if(n != faces_size)
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{
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cout << "Face set " << face_set_no << " has wrong size : "
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<< n << endl;
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exit(1);
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}
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int j;
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int max_vertex=-1;
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for(j=0;j<n;++j)
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{
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max_vertex = my_max(max_vertex, (*face_sets[face_set_no])[j][0]);
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max_vertex = my_max(max_vertex, (*face_sets[face_set_no])[j][1]);
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max_vertex = my_max(max_vertex, (*face_sets[face_set_no])[j][2]);
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}
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int vattr_no;
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for(vattr_no=0; vattr_no<face_set_mapping.size(); ++vattr_no)
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{
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if(face_set_mapping[vattr_no] == face_set_no)
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if(vert_attr[vattr_no]->size() > (max_vertex+1))
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{
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cout << "Excess vertex attributes in attribute vector "
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<< vattr_no << " associated with face set "
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<< face_set_no << endl;
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exit(1);
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}
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else if(vert_attr[vattr_no]->size() < (max_vertex+1))
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{
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cout << "Face set " << face_set_no << " addresses beyond the "
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<< "end of attribute vector " << vattr_no << endl;
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exit(1);
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}
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}
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}
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int i;
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for(i=0;i<face_attr.size();++i)
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{
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int n = face_attr[i]->size();
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if(n != faces_size)
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{
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cout << "Face attribute vector " << i
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<< " has wrong size : " << n << endl;
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exit(0);
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}
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}
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#endif
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did_call_get_trimesh = true;
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return new TriMesh(*this);
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}
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}
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