335 lines
9.5 KiB
C++
335 lines
9.5 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2017, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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#ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
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#include "D3MFImporter.h"
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#include <assimp/scene.h>
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#include <assimp/IOSystem.hpp>
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#include <assimp/DefaultLogger.hpp>
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#include <assimp/importerdesc.h>
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#include "StringComparison.h"
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#include "StringUtils.h"
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#include <string>
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#include <vector>
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#include <map>
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#include <cassert>
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#include <memory>
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#include "D3MFOpcPackage.h"
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#include <contrib/unzip/unzip.h>
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#include "irrXMLWrapper.h"
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#include "3MFXmlTags.h"
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namespace Assimp {
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namespace D3MF {
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class XmlSerializer {
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public:
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XmlSerializer(XmlReader* xmlReader)
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: xmlReader(xmlReader) {
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// empty
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}
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~XmlSerializer() {
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// empty
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}
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void ImportXml(aiScene* scene) {
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scene->mRootNode = new aiNode();
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std::vector<aiNode*> children;
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while(ReadToEndElement(D3MF::XmlTag::model)) {
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if(xmlReader->getNodeName() == D3MF::XmlTag::object) {
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children.push_back(ReadObject(scene));
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} else if(xmlReader->getNodeName() == D3MF::XmlTag::build) {
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}
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}
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if ( scene->mRootNode->mName.length == 0 ) {
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scene->mRootNode->mName.Set( "3MF" );
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}
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scene->mNumMeshes = static_cast<unsigned int>(meshes.size());
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scene->mMeshes = new aiMesh*[scene->mNumMeshes]();
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std::copy(meshes.begin(), meshes.end(), scene->mMeshes);
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scene->mRootNode->mNumChildren = static_cast<unsigned int>(children.size());
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scene->mRootNode->mChildren = new aiNode*[scene->mRootNode->mNumChildren]();
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std::copy(children.begin(), children.end(), scene->mRootNode->mChildren);
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}
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private:
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aiNode* ReadObject(aiScene* scene)
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{
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std::unique_ptr<aiNode> node(new aiNode());
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std::vector<unsigned long> meshIds;
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const char *attrib( nullptr );
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std::string name, type;
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attrib = xmlReader->getAttributeValue( D3MF::XmlTag::name.c_str() );
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if ( nullptr != attrib ) {
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name = attrib;
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}
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attrib = xmlReader->getAttributeValue( D3MF::XmlTag::name.c_str() );
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if ( nullptr != attrib ) {
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type = attrib;
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}
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node->mParent = scene->mRootNode;
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node->mName.Set(name);
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size_t meshIdx = meshes.size();
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while(ReadToEndElement(D3MF::XmlTag::object))
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{
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if(xmlReader->getNodeName() == D3MF::XmlTag::mesh)
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{
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auto mesh = ReadMesh();
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mesh->mName.Set(name);
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meshes.push_back(mesh);
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meshIds.push_back(static_cast<unsigned long>(meshIdx));
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meshIdx++;
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}
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}
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node->mNumMeshes = static_cast<unsigned int>(meshIds.size());
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node->mMeshes = new unsigned int[node->mNumMeshes];
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std::copy(meshIds.begin(), meshIds.end(), node->mMeshes);
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return node.release();
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}
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aiMesh* ReadMesh() {
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aiMesh* mesh = new aiMesh();
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while(ReadToEndElement(D3MF::XmlTag::mesh))
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{
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if(xmlReader->getNodeName() == D3MF::XmlTag::vertices)
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{
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ImportVertices(mesh);
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}
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else if(xmlReader->getNodeName() == D3MF::XmlTag::triangles)
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{
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ImportTriangles(mesh);
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}
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}
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return mesh;
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}
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void ImportVertices(aiMesh* mesh)
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{
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std::vector<aiVector3D> vertices;
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while(ReadToEndElement(D3MF::XmlTag::vertices))
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{
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if(xmlReader->getNodeName() == D3MF::XmlTag::vertex)
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{
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vertices.push_back(ReadVertex());
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}
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}
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mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
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mesh->mVertices = new aiVector3D[mesh->mNumVertices];
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std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
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}
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aiVector3D ReadVertex()
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{
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aiVector3D vertex;
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vertex.x = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::x.c_str()), nullptr);
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vertex.y = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::y.c_str()), nullptr);
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vertex.z = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::z.c_str()), nullptr);
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return vertex;
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}
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void ImportTriangles(aiMesh* mesh)
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{
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std::vector<aiFace> faces;
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while(ReadToEndElement(D3MF::XmlTag::triangles))
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{
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if(xmlReader->getNodeName() == D3MF::XmlTag::triangle)
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{
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faces.push_back(ReadTriangle());
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}
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}
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mesh->mNumFaces = static_cast<unsigned int>(faces.size());
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mesh->mFaces = new aiFace[mesh->mNumFaces];
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mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
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std::copy(faces.begin(), faces.end(), mesh->mFaces);
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}
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aiFace ReadTriangle()
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{
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aiFace face;
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face.mNumIndices = 3;
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face.mIndices = new unsigned int[face.mNumIndices];
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face.mIndices[0] = static_cast<unsigned int>(std::atoi(xmlReader->getAttributeValue(D3MF::XmlTag::v1.c_str())));
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face.mIndices[1] = static_cast<unsigned int>(std::atoi(xmlReader->getAttributeValue(D3MF::XmlTag::v2.c_str())));
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face.mIndices[2] = static_cast<unsigned int>(std::atoi(xmlReader->getAttributeValue(D3MF::XmlTag::v3.c_str())));
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return face;
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}
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private:
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bool ReadToStartElement(const std::string& startTag)
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{
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while(xmlReader->read())
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{
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if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT && xmlReader->getNodeName() == startTag)
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{
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return true;
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}
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else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END &&
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xmlReader->getNodeName() == startTag)
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{
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return false;
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}
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}
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//DefaultLogger::get()->error("unexpected EOF, expected closing <" + closeTag + "> tag");
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return false;
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}
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bool ReadToEndElement(const std::string& closeTag)
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{
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while(xmlReader->read())
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{
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if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT) {
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return true;
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}
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else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END
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&& xmlReader->getNodeName() == closeTag)
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{
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return false;
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}
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}
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DefaultLogger::get()->error("unexpected EOF, expected closing <" + closeTag + "> tag");
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return false;
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}
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private:
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std::vector<aiMesh*> meshes;
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XmlReader* xmlReader;
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};
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} //namespace D3MF
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static const std::string Extension = "3mf";
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static const aiImporterDesc desc = {
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"3mf Importer",
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"",
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"",
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"http://3mf.io/",
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aiImporterFlags_SupportBinaryFlavour | aiImporterFlags_SupportCompressedFlavour,
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0,
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0,
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0,
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0,
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Extension.c_str()
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};
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D3MFImporter::D3MFImporter()
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: BaseImporter() {
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// empty
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}
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D3MFImporter::~D3MFImporter() {
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// empty
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}
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bool D3MFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
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const std::string extension = GetExtension(pFile);
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if(extension == Extension ) {
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return true;
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} else if ( !extension.length() || checkSig ) {
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if (nullptr == pIOHandler ) {
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return true;
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}
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}
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return false;
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}
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void D3MFImporter::SetupProperties(const Importer * /*pImp*/) {
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// empty
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}
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const aiImporterDesc *D3MFImporter::GetInfo() const {
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return &desc;
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}
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void D3MFImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) {
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D3MF::D3MFOpcPackage opcPackage(pIOHandler, pFile);
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std::unique_ptr<CIrrXML_IOStreamReader> xmlStream(new CIrrXML_IOStreamReader(opcPackage.RootStream()));
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std::unique_ptr<D3MF::XmlReader> xmlReader(irr::io::createIrrXMLReader(xmlStream.get()));
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D3MF::XmlSerializer xmlSerializer(xmlReader.get());
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xmlSerializer.ImportXml(pScene);
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}
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} // Namespace Assimp
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#endif // ASSIMP_BUILD_NO_3MF_IMPORTER
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