Fix python binding.
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Syoyo Fujita
3
python/TODO.md
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3
python/TODO.md
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@@ -0,0 +1,3 @@
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* PBR material
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* Define index_t struct
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* Python 2.7 binding
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271
python/main.cpp
271
python/main.cpp
@@ -1,160 +1,191 @@
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//python3 module for tinyobjloader
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// python3 module for tinyobjloader
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//
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//usage:
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// usage:
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// import tinyobjloader as tol
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// model = tol.LoadObj(name)
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// print(model["shapes"])
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// print(model["materials"]
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// note:
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// `shape.mesh.index_t` is represented as flattened array: (vertex_index, normal_index, texcoord_index) * num_faces
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#include <Python.h>
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#include <vector>
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#include "../tiny_obj_loader.h"
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typedef std::vector<double> vectd;
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typedef std::vector<int> vecti;
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PyObject*
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pyTupleFromfloat3 (float array[3])
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{
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int i;
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PyObject* tuple = PyTuple_New(3);
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PyObject* pyTupleFromfloat3(float array[3]) {
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int i;
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PyObject* tuple = PyTuple_New(3);
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for(i=0; i<=2 ; i++){
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PyTuple_SetItem(tuple, i, PyFloat_FromDouble(array[i]));
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}
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for (i = 0; i <= 2; i++) {
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PyTuple_SetItem(tuple, i, PyFloat_FromDouble(array[i]));
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}
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return tuple;
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return tuple;
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}
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extern "C"
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{
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extern "C" {
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static PyObject*
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pyLoadObj(PyObject* self, PyObject* args)
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{
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PyObject *rtndict, *pyshapes, *pymaterials,
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*current, *meshobj;
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static PyObject* pyLoadObj(PyObject* self, PyObject* args) {
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PyObject *rtndict, *pyshapes, *pymaterials, *attribobj, *current, *meshobj;
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char const* filename;
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char *current_name;
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vectd vect;
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char const* current_name;
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char const* filename;
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vectd vect;
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std::vector<tinyobj::index_t> indices;
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std::vector<unsigned char> face_verts;
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std::vector<tinyobj::shape_t> shapes;
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std::vector<tinyobj::material_t> materials;
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tinyobj::attrib_t attrib;
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std::vector<tinyobj::shape_t> shapes;
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std::vector<tinyobj::material_t> materials;
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if(!PyArg_ParseTuple(args, "s", &filename))
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return NULL;
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if (!PyArg_ParseTuple(args, "s", &filename)) return NULL;
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std::string err;
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tinyobj::LoadObj(shapes, materials, err, filename);
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std::string err;
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tinyobj::LoadObj(&attrib, &shapes, &materials, &err, filename);
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pyshapes = PyDict_New();
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pymaterials = PyDict_New();
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rtndict = PyDict_New();
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pyshapes = PyDict_New();
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pymaterials = PyDict_New();
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rtndict = PyDict_New();
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for (std::vector<tinyobj::shape_t>::iterator shape = shapes.begin() ;
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shape != shapes.end(); shape++)
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{
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meshobj = PyDict_New();
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tinyobj::mesh_t cm = (*shape).mesh;
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attribobj = PyDict_New();
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for (int i = 0; i <= 4; i++ )
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{
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current = PyList_New(0);
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for (int i = 0; i <= 2; i++) {
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current = PyList_New(0);
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switch(i) {
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case 0:
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current_name = "positions";
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vect = vectd(cm.positions.begin(), cm.positions.end()); break;
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case 1:
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current_name = "normals";
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vect = vectd(cm.normals.begin(), cm.normals.end()); break;
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case 2:
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current_name = "texcoords";
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vect = vectd(cm.texcoords.begin(), cm.texcoords.end()); break;
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case 3:
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current_name = "indicies";
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vect = vectd(cm.indices.begin(), cm.indices.end()); break;
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case 4:
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current_name = "material_ids";
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vect = vectd(cm.material_ids.begin(), cm.material_ids.end()); break;
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}
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for (vectd::iterator it = vect.begin() ;
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it != vect.end(); it++)
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{
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PyList_Insert(current, it - vect.begin(), PyFloat_FromDouble(*it));
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}
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PyDict_SetItemString(meshobj, current_name, current);
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}
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PyDict_SetItemString(pyshapes, (*shape).name.c_str(), meshobj);
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switch (i) {
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case 0:
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current_name = "vertices";
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vect = vectd(attrib.vertices.begin(), attrib.vertices.end());
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break;
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case 1:
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current_name = "normals";
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vect = vectd(attrib.normals.begin(), attrib.normals.end());
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break;
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case 2:
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current_name = "texcoords";
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vect = vectd(attrib.texcoords.begin(), attrib.texcoords.end());
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break;
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}
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for (std::vector<tinyobj::material_t>::iterator mat = materials.begin() ;
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mat != materials.end(); mat++)
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{
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PyObject *matobj = PyDict_New();
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PyObject *unknown_parameter = PyDict_New();
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for (std::map<std::string, std::string>::iterator p = (*mat).unknown_parameter.begin() ;
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p != (*mat).unknown_parameter.end(); ++p)
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{
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PyDict_SetItemString(unknown_parameter, p->first.c_str(), PyUnicode_FromString(p->second.c_str()));
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}
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PyDict_SetItemString(matobj, "shininess", PyFloat_FromDouble((*mat).shininess));
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PyDict_SetItemString(matobj, "ior", PyFloat_FromDouble((*mat).ior));
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PyDict_SetItemString(matobj, "dissolve", PyFloat_FromDouble((*mat).dissolve));
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PyDict_SetItemString(matobj, "illum", PyLong_FromLong((*mat).illum));
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PyDict_SetItemString(matobj, "ambient_texname", PyUnicode_FromString((*mat).ambient_texname.c_str()));
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PyDict_SetItemString(matobj, "diffuse_texname", PyUnicode_FromString((*mat).diffuse_texname.c_str()));
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PyDict_SetItemString(matobj, "specular_texname", PyUnicode_FromString((*mat).specular_texname.c_str()));
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PyDict_SetItemString(matobj, "specular_highlight_texname", PyUnicode_FromString((*mat).specular_highlight_texname.c_str()));
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PyDict_SetItemString(matobj, "bump_texname", PyUnicode_FromString((*mat).bump_texname.c_str()));
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PyDict_SetItemString(matobj, "displacement_texname", PyUnicode_FromString((*mat).displacement_texname.c_str()));
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PyDict_SetItemString(matobj, "alpha_texname", PyUnicode_FromString((*mat).alpha_texname.c_str()));
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PyDict_SetItemString(matobj, "ambient", pyTupleFromfloat3((*mat).ambient));
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PyDict_SetItemString(matobj, "diffuse", pyTupleFromfloat3((*mat).diffuse));
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PyDict_SetItemString(matobj, "specular", pyTupleFromfloat3((*mat).specular));
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PyDict_SetItemString(matobj, "transmittance", pyTupleFromfloat3((*mat).transmittance));
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PyDict_SetItemString(matobj, "emission", pyTupleFromfloat3((*mat).emission));
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PyDict_SetItemString(matobj, "unknown_parameter", unknown_parameter);
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PyDict_SetItemString(pymaterials, (*mat).name.c_str(), matobj);
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for (vectd::iterator it = vect.begin(); it != vect.end(); it++) {
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PyList_Insert(current, it - vect.begin(), PyFloat_FromDouble(*it));
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}
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PyDict_SetItemString(rtndict, "shapes", pyshapes);
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PyDict_SetItemString(rtndict, "materials", pymaterials);
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PyDict_SetItemString(attribobj, current_name, current);
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}
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return rtndict;
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for (std::vector<tinyobj::shape_t>::iterator shape = shapes.begin();
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shape != shapes.end(); shape++) {
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meshobj = PyDict_New();
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tinyobj::mesh_t cm = (*shape).mesh;
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{
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current = PyList_New(0);
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for (size_t i = 0; i < cm.indices.size(); i++) {
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// Flatten index array: v_idx, vn_idx, vt_idx, v_idx, vn_idx, vt_idx,
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// ...
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PyList_Insert(current, 3 * i + 0,
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PyLong_FromLong(cm.indices[i].vertex_index));
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PyList_Insert(current, 3 * i + 1,
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PyLong_FromLong(cm.indices[i].normal_index));
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PyList_Insert(current, 3 * i + 2,
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PyLong_FromLong(cm.indices[i].texcoord_index));
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}
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PyDict_SetItemString(meshobj, "indices", current);
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}
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{
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current = PyList_New(0);
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for (size_t i = 0; i < cm.num_face_vertices.size(); i++) {
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// Widen data type to long.
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PyList_Insert(current, i, PyLong_FromLong(cm.num_face_vertices[i]));
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}
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PyDict_SetItemString(meshobj, "num_face_vertices", current);
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}
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{
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current = PyList_New(0);
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for (size_t i = 0; i < cm.material_ids.size(); i++) {
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PyList_Insert(current, i, PyLong_FromLong(cm.material_ids[i]));
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}
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PyDict_SetItemString(meshobj, "material_ids", current);
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}
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PyDict_SetItemString(pyshapes, (*shape).name.c_str(), meshobj);
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}
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for (std::vector<tinyobj::material_t>::iterator mat = materials.begin();
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mat != materials.end(); mat++) {
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PyObject* matobj = PyDict_New();
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PyObject* unknown_parameter = PyDict_New();
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for (std::map<std::string, std::string>::iterator p =
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(*mat).unknown_parameter.begin();
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p != (*mat).unknown_parameter.end(); ++p) {
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PyDict_SetItemString(unknown_parameter, p->first.c_str(),
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PyUnicode_FromString(p->second.c_str()));
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}
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PyDict_SetItemString(matobj, "shininess",
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PyFloat_FromDouble((*mat).shininess));
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PyDict_SetItemString(matobj, "ior", PyFloat_FromDouble((*mat).ior));
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PyDict_SetItemString(matobj, "dissolve",
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PyFloat_FromDouble((*mat).dissolve));
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PyDict_SetItemString(matobj, "illum", PyLong_FromLong((*mat).illum));
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PyDict_SetItemString(matobj, "ambient_texname",
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PyUnicode_FromString((*mat).ambient_texname.c_str()));
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PyDict_SetItemString(matobj, "diffuse_texname",
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PyUnicode_FromString((*mat).diffuse_texname.c_str()));
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PyDict_SetItemString(matobj, "specular_texname",
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PyUnicode_FromString((*mat).specular_texname.c_str()));
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PyDict_SetItemString(
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matobj, "specular_highlight_texname",
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PyUnicode_FromString((*mat).specular_highlight_texname.c_str()));
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PyDict_SetItemString(matobj, "bump_texname",
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PyUnicode_FromString((*mat).bump_texname.c_str()));
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PyDict_SetItemString(
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matobj, "displacement_texname",
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PyUnicode_FromString((*mat).displacement_texname.c_str()));
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PyDict_SetItemString(matobj, "alpha_texname",
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PyUnicode_FromString((*mat).alpha_texname.c_str()));
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PyDict_SetItemString(matobj, "ambient", pyTupleFromfloat3((*mat).ambient));
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PyDict_SetItemString(matobj, "diffuse", pyTupleFromfloat3((*mat).diffuse));
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PyDict_SetItemString(matobj, "specular",
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pyTupleFromfloat3((*mat).specular));
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PyDict_SetItemString(matobj, "transmittance",
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pyTupleFromfloat3((*mat).transmittance));
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PyDict_SetItemString(matobj, "emission",
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pyTupleFromfloat3((*mat).emission));
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PyDict_SetItemString(matobj, "unknown_parameter", unknown_parameter);
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PyDict_SetItemString(pymaterials, (*mat).name.c_str(), matobj);
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}
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PyDict_SetItemString(rtndict, "shapes", pyshapes);
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PyDict_SetItemString(rtndict, "materials", pymaterials);
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return rtndict;
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}
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static PyMethodDef mMethods[] = {
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{"LoadObj", pyLoadObj, METH_VARARGS},
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{NULL, NULL, 0, NULL}
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{"LoadObj", pyLoadObj, METH_VARARGS}, {NULL, NULL, 0, NULL}
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};
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static struct PyModuleDef moduledef = {PyModuleDef_HEAD_INIT, "tinyobjloader",
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NULL, -1, mMethods};
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static struct PyModuleDef moduledef = {
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PyModuleDef_HEAD_INIT,
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"tinyobjloader",
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NULL,
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-1,
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mMethods
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};
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PyMODINIT_FUNC
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PyInit_tinyobjloader(void)
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{
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return PyModule_Create(&moduledef);
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PyMODINIT_FUNC PyInit_tinyobjloader(void) {
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return PyModule_Create(&moduledef);
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}
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}
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