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#include "collada.h"
#include <k3dsdk/polyhedron.h>
#include <boost/scoped_ptr.hpp>
namespace module
{
namespace collada
{
namespace io
{
// "myGeom" --> "#myGeom"
std::string makeUriRef(const std::string& id)
{
return std::string("#") + id;
}
std::string removeSpaces(std::string str)
{
for(int i=0; i<str.length(); i++)
if(str[i]==' ')
str[i]='_';
return str;
}
void addSource(daeElement* mesh, const std::string& srcID, const std::string& paramNames, domFloat values[], int valueCount)
{
SafeAdd(mesh, "source", src);
src->setAttribute("id", srcID.c_str());
domFloat_array* fa = daeSafeCast<domFloat_array>(src->add("float_array"));
fa->setId((src->getAttribute("id") + "-array").c_str());
fa->setCount(valueCount);
fa->getValue() = rawArrayToDaeArray(values, valueCount);
domAccessor* acc = daeSafeCast<domAccessor>(src->add("technique_common accessor"));
acc->setSource(makeUriRef(fa->getId()).c_str());
std::list<std::string> params = cdom::tokenize(paramNames, " ");
acc->setStride(params.size());
acc->setCount(valueCount/params.size());
for (cdom::tokenIter iter = params.begin(); iter != params.end(); iter++)
{
SafeAdd(acc, "param", p);
p->setAttribute("name", iter->c_str());
p->setAttribute("type", "float");
}
}
void addInput(daeElement* triangles, const std::string& semantic, const std::string& srcID, int offset)
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(triangles->add("input"));
input->setSemantic(semantic.c_str());
input->setOffset(offset);
input->setSource(makeUriRef(srcID).c_str());
if (semantic == "TEXCOORD")
input->setSet(0);
}
void addGeometry(daeElement* library_geometries, const std::string &name, k3d::mesh *mesh)
{
SafeAdd(library_geometries, "geometry", geom);
geom->setAttribute("id", removeSpaces(name).c_str());
geom->setAttribute("name", removeSpaces(name).c_str());
SafeAdd(geom, "mesh", gmesh);
// Add the position data
domFloat posArray[mesh->points->size()*3];
for(int i=0; i<mesh->points->size(); i++)
for(int j=0; j<3;j++)
posArray[i*3+j] = mesh->points->at(i)[j];
int count = sizeof(posArray)/sizeof(posArray[0]);
addSource(gmesh, removeSpaces(name) + "-positions", "X Y Z", posArray, count);
// Add the <vertices> element
SafeAdd(gmesh, "vertices", vertices);
vertices->setAttribute("id", (removeSpaces(name) + "-vertices").c_str());
SafeAdd(vertices, "input", verticesInput);
verticesInput->setAttribute("semantic", "POSITION");
verticesInput->setAttribute("source", makeUriRef(removeSpaces(name) + "-positions").c_str());
// Store polyhedra ...
std::vector<domUint> ind;
std::vector<domUint> vcou;
for(k3d::uint_t prim_idx = 0; prim_idx != mesh->primitives.size(); ++prim_idx)
{
boost::scoped_ptr<k3d::polyhedron::const_primitive> polyhedron(k3d::polyhedron::validate(*mesh, *mesh->primitives[prim_idx]));
if(polyhedron)
{
const size_t face_begin = 0;
const size_t face_end = polyhedron->face_first_loops.size();
for(size_t face = face_begin; face != face_end; ++face)
{
const size_t loop_begin = polyhedron->face_first_loops[face];
const size_t loop_end = loop_begin + polyhedron->face_loop_counts[face];
for(size_t loop = loop_begin; loop != loop_end; ++loop)
{
const size_t first_edge = polyhedron->loop_first_edges[loop];
size_t face_size = 0;
for(size_t edge = first_edge; ; )
{
ind.push_back(polyhedron->vertex_points[edge]);
edge = polyhedron->clockwise_edges[edge];
face_size++;
if(edge == first_edge)
{
vcou.push_back(face_size);
break;
}
}
/** \todo Support faces with holes */
break;
}
}
domPolylist* polylist = daeSafeCast<domPolylist>(gmesh->add("polylist"));
polylist->setMaterial("mtl");
polylist->setCount(face_end);
domPolylist::domVcount *vcount = daeSafeCast<domPolylist::domVcount>(polylist->add("vcount"));
addInput(polylist, "VERTEX", removeSpaces(name) + "-vertices", 0);
//addInput(polylist, "NORMAL", geomID + "-normals", 1);
//addInput(polylist, "TEXCOORD", geomID + "-uv", 2);
domP* p = daeSafeCast<domP>(polylist->add("p"));
domUint index[ind.size()];
for(int i=0; i<ind.size(); i++)
index[i] = ind[i];
domUint vcount_tmp[vcou.size()];
for(int i=0; i<vcou.size(); i++)
vcount_tmp[i] = vcou[i];
p->getValue() = rawArrayToDaeArray(index, ind.size());
vcount->getValue() = rawArrayToDaeArray(vcount_tmp, vcou.size());
}
}
}
void addMeshInstance(daeElement * visualScene, k3d::inode *inode)
{
// Add a <node> with a simple transformation
SafeAdd(visualScene, "node", node);
node->setAttribute("id", removeSpaces(inode->name()).c_str());
node->setAttribute("name", removeSpaces(inode->name()).c_str());
// Instantiate the <geometry>
SafeAdd(node, "instance_geometry", instanceGeom);
std::string ID = k3d::data::property_lookup(k3d::property::get(*inode, "input_mesh"))->property_node()->name();
instanceGeom->setAttribute("url", makeUriRef(removeSpaces(ID)).c_str());
// Bind material parameters
//SafeAdd(instanceGeom, "bind_material technique_common instance_material", instanceMaterial);
//instanceMaterial->setAttribute("symbol", "mtl");
//instanceMaterial->setAttribute("target", makeUriRef("cubeMaterial").c_str());
//SafeAdd(instanceMaterial, "bind_vertex_input", bindVertexInput);
//bindVertexInput->setAttribute("semantic", "uv0");
//bindVertexInput->setAttribute("input_semantic", "TEXCOORD");
//bindVertexInput->setAttribute("input_set", "0");
k3d::matrix4 matrix = boost::any_cast<k3d::matrix4>(k3d::property::get(*inode, "input_matrix")->property_pipeline_value());
std::stringstream mat;
for(int i=0; i<4; i++)
for(int j=0; j<4; j++)
mat << matrix[i][j] << " " << std::endl;
node->add("matrix")->setCharData(mat.str());
}
void addCameraInstance(daeElement * visualScene, k3d::inode *inode)
{
// Add a <node> with a simple transformation
SafeAdd(visualScene, "node", node);
node->setAttribute("id", removeSpaces(inode->name()).c_str());
node->setAttribute("name", removeSpaces(inode->name()).c_str());
// Instantiate the <geometry>
SafeAdd(node, "instance_camera", instanceCam);
instanceCam->setAttribute("url", makeUriRef(removeSpaces(inode->name())).c_str());
k3d::matrix4 matrix = boost::any_cast<k3d::matrix4>(k3d::property::get(*inode, "input_matrix")->property_pipeline_value());
std::stringstream mat;
for(int i=0; i<4; i++)
for(int j=0; j<4; j++)
mat << matrix[i][j] << " " << std::endl;
node->add("matrix")->setCharData(mat.str());
}
k3d::mesh to_k3d_mesh(domGeometry &geom)
{
intGeometry result(geom,k3d::identity3());
return result.getMesh();
}
}
}
}
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