714 lines
25 KiB
C++
714 lines
25 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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/** @file FBXDocument.cpp
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* @brief Implementation of the FBX DOM classes
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*/
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#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
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#include "FBXDocument.h"
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#include "FBXMeshGeometry.h"
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#include "FBXParser.h"
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#include "FBXUtil.h"
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#include "FBXImporter.h"
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#include "FBXImportSettings.h"
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#include "FBXDocumentUtil.h"
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#include "FBXProperties.h"
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#include <memory>
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#include <functional>
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#include <map>
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namespace Assimp {
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namespace FBX {
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using namespace Util;
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// ------------------------------------------------------------------------------------------------
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LazyObject::LazyObject(uint64_t id, const Element& element, const Document& doc)
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: doc(doc)
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, element(element)
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, id(id)
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, flags()
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{
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// empty
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}
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// ------------------------------------------------------------------------------------------------
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LazyObject::~LazyObject()
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{
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// empty
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}
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// ------------------------------------------------------------------------------------------------
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const Object* LazyObject::Get(bool dieOnError)
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{
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if(IsBeingConstructed() || FailedToConstruct()) {
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return NULL;
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}
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if (object.get()) {
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return object.get();
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}
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// if this is the root object, we return a dummy since there
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// is no root object int he fbx file - it is just referenced
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// with id 0.
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if(id == 0L) {
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object.reset(new Object(id, element, "Model::RootNode"));
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return object.get();
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}
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const Token& key = element.KeyToken();
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const TokenList& tokens = element.Tokens();
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if(tokens.size() < 3) {
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DOMError("expected at least 3 tokens: id, name and class tag",&element);
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}
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const char* err;
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std::string name = ParseTokenAsString(*tokens[1],err);
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if (err) {
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DOMError(err,&element);
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}
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// small fix for binary reading: binary fbx files don't use
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// prefixes such as Model:: in front of their names. The
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// loading code expects this at many places, though!
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// so convert the binary representation (a 0x0001) to the
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// double colon notation.
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if(tokens[1]->IsBinary()) {
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for (size_t i = 0; i < name.length(); ++i) {
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if (name[i] == 0x0 && name[i+1] == 0x1) {
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name = name.substr(i+2) + "::" + name.substr(0,i);
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}
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}
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}
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const std::string classtag = ParseTokenAsString(*tokens[2],err);
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if (err) {
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DOMError(err,&element);
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}
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// prevent recursive calls
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flags |= BEING_CONSTRUCTED;
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try {
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// this needs to be relatively fast since it happens a lot,
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// so avoid constructing strings all the time.
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const char* obtype = key.begin();
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const size_t length = static_cast<size_t>(key.end()-key.begin());
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// For debugging
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//dumpObjectClassInfo( objtype, classtag );
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if (!strncmp(obtype,"Geometry",length)) {
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if (!strcmp(classtag.c_str(),"Mesh")) {
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object.reset(new MeshGeometry(id,element,name,doc));
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}
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}
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else if (!strncmp(obtype,"NodeAttribute",length)) {
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if (!strcmp(classtag.c_str(),"Camera")) {
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object.reset(new Camera(id,element,doc,name));
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}
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else if (!strcmp(classtag.c_str(),"CameraSwitcher")) {
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object.reset(new CameraSwitcher(id,element,doc,name));
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}
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else if (!strcmp(classtag.c_str(),"Light")) {
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object.reset(new Light(id,element,doc,name));
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}
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else if (!strcmp(classtag.c_str(),"Null")) {
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object.reset(new Null(id,element,doc,name));
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}
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else if (!strcmp(classtag.c_str(),"LimbNode")) {
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object.reset(new LimbNode(id,element,doc,name));
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}
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}
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else if (!strncmp(obtype,"Deformer",length)) {
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if (!strcmp(classtag.c_str(),"Cluster")) {
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object.reset(new Cluster(id,element,doc,name));
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}
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else if (!strcmp(classtag.c_str(),"Skin")) {
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object.reset(new Skin(id,element,doc,name));
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}
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}
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else if ( !strncmp( obtype, "Model", length ) ) {
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// FK and IK effectors are not supported
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if ( strcmp( classtag.c_str(), "IKEffector" ) && strcmp( classtag.c_str(), "FKEffector" ) ) {
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object.reset( new Model( id, element, doc, name ) );
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}
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}
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else if (!strncmp(obtype,"Material",length)) {
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object.reset(new Material(id,element,doc,name));
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}
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else if (!strncmp(obtype,"Texture",length)) {
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object.reset(new Texture(id,element,doc,name));
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}
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else if (!strncmp(obtype,"LayeredTexture",length)) {
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object.reset(new LayeredTexture(id,element,doc,name));
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}
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else if (!strncmp(obtype,"Video",length)) {
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object.reset(new Video(id,element,doc,name));
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}
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else if (!strncmp(obtype,"AnimationStack",length)) {
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object.reset(new AnimationStack(id,element,name,doc));
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}
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else if (!strncmp(obtype,"AnimationLayer",length)) {
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object.reset(new AnimationLayer(id,element,name,doc));
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}
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// note: order matters for these two
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else if (!strncmp(obtype,"AnimationCurve",length)) {
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object.reset(new AnimationCurve(id,element,name,doc));
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}
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else if (!strncmp(obtype,"AnimationCurveNode",length)) {
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object.reset(new AnimationCurveNode(id,element,name,doc));
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}
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}
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catch(std::exception& ex) {
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flags &= ~BEING_CONSTRUCTED;
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flags |= FAILED_TO_CONSTRUCT;
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if(dieOnError || doc.Settings().strictMode) {
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throw;
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}
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// note: the error message is already formatted, so raw logging is ok
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if(!DefaultLogger::isNullLogger()) {
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DefaultLogger::get()->error(ex.what());
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}
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return NULL;
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}
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if (!object.get()) {
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//DOMError("failed to convert element to DOM object, class: " + classtag + ", name: " + name,&element);
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}
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flags &= ~BEING_CONSTRUCTED;
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return object.get();
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}
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// ------------------------------------------------------------------------------------------------
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Object::Object(uint64_t id, const Element& element, const std::string& name)
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: element(element)
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, name(name)
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, id(id)
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{
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// empty
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}
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// ------------------------------------------------------------------------------------------------
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Object::~Object()
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{
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// empty
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}
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// ------------------------------------------------------------------------------------------------
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FileGlobalSettings::FileGlobalSettings(const Document& doc, std::shared_ptr<const PropertyTable> props)
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: props(props)
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, doc(doc)
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{
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// empty
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}
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// ------------------------------------------------------------------------------------------------
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FileGlobalSettings::~FileGlobalSettings()
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{
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// empty
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}
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// ------------------------------------------------------------------------------------------------
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Document::Document(const Parser& parser, const ImportSettings& settings)
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: settings(settings)
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, parser(parser)
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{
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// Cannot use array default initialization syntax because vc8 fails on it
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for (auto &timeStamp : creationTimeStamp) {
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timeStamp = 0;
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}
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ReadHeader();
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ReadPropertyTemplates();
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ReadGlobalSettings();
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// This order is important, connections need parsed objects to check
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// whether connections are ok or not. Objects may not be evaluated yet,
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// though, since this may require valid connections.
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ReadObjects();
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ReadConnections();
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}
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// ------------------------------------------------------------------------------------------------
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Document::~Document()
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{
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for(ObjectMap::value_type& v : objects) {
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delete v.second;
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}
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for(ConnectionMap::value_type& v : src_connections) {
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delete v.second;
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}
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// |dest_connections| contain the same Connection objects as the |src_connections|
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}
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// ------------------------------------------------------------------------------------------------
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static const unsigned int LowerSupportedVersion = 7100;
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static const unsigned int UpperSupportedVersion = 7400;
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void Document::ReadHeader() {
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// Read ID objects from "Objects" section
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const Scope& sc = parser.GetRootScope();
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const Element* const ehead = sc["FBXHeaderExtension"];
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if(!ehead || !ehead->Compound()) {
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DOMError("no FBXHeaderExtension dictionary found");
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}
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const Scope& shead = *ehead->Compound();
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fbxVersion = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(shead,"FBXVersion",ehead),0));
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// While we may have some success with newer files, we don't support
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// the older 6.n fbx format
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if(fbxVersion < LowerSupportedVersion ) {
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DOMError("unsupported, old format version, supported are only FBX 2011, FBX 2012 and FBX 2013");
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}
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if(fbxVersion > UpperSupportedVersion ) {
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if(Settings().strictMode) {
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DOMError("unsupported, newer format version, supported are only FBX 2011, FBX 2012 and FBX 2013"
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" (turn off strict mode to try anyhow) ");
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}
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else {
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DOMWarning("unsupported, newer format version, supported are only FBX 2011, FBX 2012 and FBX 2013,"
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" trying to read it nevertheless");
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}
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}
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const Element* const ecreator = shead["Creator"];
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if(ecreator) {
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creator = ParseTokenAsString(GetRequiredToken(*ecreator,0));
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}
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const Element* const etimestamp = shead["CreationTimeStamp"];
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if(etimestamp && etimestamp->Compound()) {
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const Scope& stimestamp = *etimestamp->Compound();
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creationTimeStamp[0] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Year"),0));
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creationTimeStamp[1] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Month"),0));
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creationTimeStamp[2] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Day"),0));
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creationTimeStamp[3] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Hour"),0));
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creationTimeStamp[4] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Minute"),0));
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creationTimeStamp[5] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Second"),0));
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creationTimeStamp[6] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Millisecond"),0));
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}
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}
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// ------------------------------------------------------------------------------------------------
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void Document::ReadGlobalSettings()
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{
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const Scope& sc = parser.GetRootScope();
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const Element* const ehead = sc["GlobalSettings"];
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if(!ehead || !ehead->Compound()) {
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DOMWarning("no GlobalSettings dictionary found");
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globals.reset(new FileGlobalSettings(*this, std::make_shared<const PropertyTable>()));
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return;
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}
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std::shared_ptr<const PropertyTable> props = GetPropertyTable(*this, "", *ehead, *ehead->Compound(), true);
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if(!props) {
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DOMError("GlobalSettings dictionary contains no property table");
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}
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globals.reset(new FileGlobalSettings(*this, props));
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}
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// ------------------------------------------------------------------------------------------------
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void Document::ReadObjects()
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{
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// read ID objects from "Objects" section
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const Scope& sc = parser.GetRootScope();
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const Element* const eobjects = sc["Objects"];
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if(!eobjects || !eobjects->Compound()) {
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DOMError("no Objects dictionary found");
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}
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// add a dummy entry to represent the Model::RootNode object (id 0),
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// which is only indirectly defined in the input file
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objects[0] = new LazyObject(0L, *eobjects, *this);
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const Scope& sobjects = *eobjects->Compound();
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for(const ElementMap::value_type& el : sobjects.Elements()) {
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// extract ID
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const TokenList& tok = el.second->Tokens();
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if (tok.empty()) {
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DOMError("expected ID after object key",el.second);
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}
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const char* err;
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const uint64_t id = ParseTokenAsID(*tok[0], err);
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if(err) {
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DOMError(err,el.second);
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}
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// id=0 is normally implicit
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if(id == 0L) {
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DOMError("encountered object with implicitly defined id 0",el.second);
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}
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if(objects.find(id) != objects.end()) {
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DOMWarning("encountered duplicate object id, ignoring first occurrence",el.second);
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}
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objects[id] = new LazyObject(id, *el.second, *this);
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// grab all animation stacks upfront since there is no listing of them
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if(!strcmp(el.first.c_str(),"AnimationStack")) {
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animationStacks.push_back(id);
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}
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}
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}
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// ------------------------------------------------------------------------------------------------
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void Document::ReadPropertyTemplates()
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{
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const Scope& sc = parser.GetRootScope();
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// read property templates from "Definitions" section
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const Element* const edefs = sc["Definitions"];
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if(!edefs || !edefs->Compound()) {
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DOMWarning("no Definitions dictionary found");
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return;
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}
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const Scope& sdefs = *edefs->Compound();
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const ElementCollection otypes = sdefs.GetCollection("ObjectType");
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for(ElementMap::const_iterator it = otypes.first; it != otypes.second; ++it) {
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const Element& el = *(*it).second;
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const Scope* sc = el.Compound();
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if(!sc) {
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DOMWarning("expected nested scope in ObjectType, ignoring",&el);
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continue;
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}
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const TokenList& tok = el.Tokens();
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if(tok.empty()) {
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DOMWarning("expected name for ObjectType element, ignoring",&el);
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continue;
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}
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const std::string& oname = ParseTokenAsString(*tok[0]);
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const ElementCollection templs = sc->GetCollection("PropertyTemplate");
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for(ElementMap::const_iterator it = templs.first; it != templs.second; ++it) {
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const Element& el = *(*it).second;
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const Scope* sc = el.Compound();
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if(!sc) {
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DOMWarning("expected nested scope in PropertyTemplate, ignoring",&el);
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continue;
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}
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const TokenList& tok = el.Tokens();
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if(tok.empty()) {
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DOMWarning("expected name for PropertyTemplate element, ignoring",&el);
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continue;
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}
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const std::string& pname = ParseTokenAsString(*tok[0]);
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const Element* Properties70 = (*sc)["Properties70"];
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if(Properties70) {
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std::shared_ptr<const PropertyTable> props = std::make_shared<const PropertyTable>(
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*Properties70,std::shared_ptr<const PropertyTable>(static_cast<const PropertyTable*>(NULL))
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);
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templates[oname+"."+pname] = props;
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}
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}
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}
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}
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// ------------------------------------------------------------------------------------------------
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void Document::ReadConnections()
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{
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const Scope& sc = parser.GetRootScope();
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// read property templates from "Definitions" section
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const Element* const econns = sc["Connections"];
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if(!econns || !econns->Compound()) {
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DOMError("no Connections dictionary found");
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}
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uint64_t insertionOrder = 0l;
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const Scope& sconns = *econns->Compound();
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const ElementCollection conns = sconns.GetCollection("C");
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for(ElementMap::const_iterator it = conns.first; it != conns.second; ++it) {
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const Element& el = *(*it).second;
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const std::string& type = ParseTokenAsString(GetRequiredToken(el,0));
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// PP = property-property connection, ignored for now
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// (tokens: "PP", ID1, "Property1", ID2, "Property2")
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if ( type == "PP" ) {
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continue;
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}
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const uint64_t src = ParseTokenAsID(GetRequiredToken(el,1));
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const uint64_t dest = ParseTokenAsID(GetRequiredToken(el,2));
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// OO = object-object connection
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// OP = object-property connection, in which case the destination property follows the object ID
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const std::string& prop = (type == "OP" ? ParseTokenAsString(GetRequiredToken(el,3)) : "");
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if(objects.find(src) == objects.end()) {
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DOMWarning("source object for connection does not exist",&el);
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continue;
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}
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// dest may be 0 (root node) but we added a dummy object before
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if(objects.find(dest) == objects.end()) {
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DOMWarning("destination object for connection does not exist",&el);
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continue;
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}
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// add new connection
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const Connection* const c = new Connection(insertionOrder++,src,dest,prop,*this);
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src_connections.insert(ConnectionMap::value_type(src,c));
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dest_connections.insert(ConnectionMap::value_type(dest,c));
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}
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}
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// ------------------------------------------------------------------------------------------------
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const std::vector<const AnimationStack*>& Document::AnimationStacks() const
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{
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if (!animationStacksResolved.empty() || animationStacks.empty()) {
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return animationStacksResolved;
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}
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animationStacksResolved.reserve(animationStacks.size());
|
|
for(uint64_t id : animationStacks) {
|
|
LazyObject* const lazy = GetObject(id);
|
|
const AnimationStack* stack;
|
|
if(!lazy || !(stack = lazy->Get<AnimationStack>())) {
|
|
DOMWarning("failed to read AnimationStack object");
|
|
continue;
|
|
}
|
|
animationStacksResolved.push_back(stack);
|
|
}
|
|
|
|
return animationStacksResolved;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
LazyObject* Document::GetObject(uint64_t id) const
|
|
{
|
|
ObjectMap::const_iterator it = objects.find(id);
|
|
return it == objects.end() ? NULL : (*it).second;
|
|
}
|
|
|
|
#define MAX_CLASSNAMES 6
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsSequenced(uint64_t id, const ConnectionMap& conns) const
|
|
{
|
|
std::vector<const Connection*> temp;
|
|
|
|
const std::pair<ConnectionMap::const_iterator,ConnectionMap::const_iterator> range =
|
|
conns.equal_range(id);
|
|
|
|
temp.reserve(std::distance(range.first,range.second));
|
|
for (ConnectionMap::const_iterator it = range.first; it != range.second; ++it) {
|
|
temp.push_back((*it).second);
|
|
}
|
|
|
|
std::sort(temp.begin(), temp.end(), std::mem_fn(&Connection::Compare));
|
|
|
|
return temp; // NRVO should handle this
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsSequenced(uint64_t id, bool is_src,
|
|
const ConnectionMap& conns,
|
|
const char* const* classnames,
|
|
size_t count) const
|
|
|
|
{
|
|
ai_assert(classnames);
|
|
ai_assert( count != 0 );
|
|
ai_assert( count <= MAX_CLASSNAMES);
|
|
|
|
size_t lenghts[MAX_CLASSNAMES];
|
|
|
|
const size_t c = count;
|
|
for (size_t i = 0; i < c; ++i) {
|
|
lenghts[ i ] = strlen(classnames[i]);
|
|
}
|
|
|
|
std::vector<const Connection*> temp;
|
|
const std::pair<ConnectionMap::const_iterator,ConnectionMap::const_iterator> range =
|
|
conns.equal_range(id);
|
|
|
|
temp.reserve(std::distance(range.first,range.second));
|
|
for (ConnectionMap::const_iterator it = range.first; it != range.second; ++it) {
|
|
const Token& key = (is_src
|
|
? (*it).second->LazyDestinationObject()
|
|
: (*it).second->LazySourceObject()
|
|
).GetElement().KeyToken();
|
|
|
|
const char* obtype = key.begin();
|
|
|
|
for (size_t i = 0; i < c; ++i) {
|
|
ai_assert(classnames[i]);
|
|
if(static_cast<size_t>(std::distance(key.begin(),key.end())) == lenghts[i] && !strncmp(classnames[i],obtype,lenghts[i])) {
|
|
obtype = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(obtype) {
|
|
continue;
|
|
}
|
|
|
|
temp.push_back((*it).second);
|
|
}
|
|
|
|
std::sort(temp.begin(), temp.end(), std::mem_fn(&Connection::Compare));
|
|
return temp; // NRVO should handle this
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsBySourceSequenced(uint64_t source) const
|
|
{
|
|
return GetConnectionsSequenced(source, ConnectionsBySource());
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsBySourceSequenced(uint64_t dest, const char* classname) const
|
|
{
|
|
const char* arr[] = {classname};
|
|
return GetConnectionsBySourceSequenced(dest, arr,1);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsBySourceSequenced(uint64_t source,
|
|
const char* const* classnames, size_t count) const
|
|
{
|
|
return GetConnectionsSequenced(source, true, ConnectionsBySource(),classnames, count);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsByDestinationSequenced(uint64_t dest,
|
|
const char* classname) const
|
|
{
|
|
const char* arr[] = {classname};
|
|
return GetConnectionsByDestinationSequenced(dest, arr,1);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsByDestinationSequenced(uint64_t dest) const
|
|
{
|
|
return GetConnectionsSequenced(dest, ConnectionsByDestination());
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
std::vector<const Connection*> Document::GetConnectionsByDestinationSequenced(uint64_t dest,
|
|
const char* const* classnames, size_t count) const
|
|
|
|
{
|
|
return GetConnectionsSequenced(dest, false, ConnectionsByDestination(),classnames, count);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Connection::Connection(uint64_t insertionOrder, uint64_t src, uint64_t dest, const std::string& prop,
|
|
const Document& doc)
|
|
|
|
: insertionOrder(insertionOrder)
|
|
, prop(prop)
|
|
, src(src)
|
|
, dest(dest)
|
|
, doc(doc)
|
|
{
|
|
ai_assert(doc.Objects().find(src) != doc.Objects().end());
|
|
// dest may be 0 (root node)
|
|
ai_assert(!dest || doc.Objects().find(dest) != doc.Objects().end());
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Connection::~Connection()
|
|
{
|
|
// empty
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
LazyObject& Connection::LazySourceObject() const
|
|
{
|
|
LazyObject* const lazy = doc.GetObject(src);
|
|
ai_assert(lazy);
|
|
return *lazy;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
LazyObject& Connection::LazyDestinationObject() const
|
|
{
|
|
LazyObject* const lazy = doc.GetObject(dest);
|
|
ai_assert(lazy);
|
|
return *lazy;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
const Object* Connection::SourceObject() const
|
|
{
|
|
LazyObject* const lazy = doc.GetObject(src);
|
|
ai_assert(lazy);
|
|
return lazy->Get();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
const Object* Connection::DestinationObject() const
|
|
{
|
|
LazyObject* const lazy = doc.GetObject(dest);
|
|
ai_assert(lazy);
|
|
return lazy->Get();
|
|
}
|
|
|
|
} // !FBX
|
|
} // !Assimp
|
|
|
|
#endif
|