/* Open Asset Import Library (assimp) ---------------------------------------------------------------------- Copyright (c) 2006-2016, assimp team All rights reserved. Redistribution and use of this software in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the* following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the assimp team, nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission of the assimp team. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------------- */ /** @file FBXDocument.cpp * @brief Implementation of the FBX DOM classes */ #ifndef ASSIMP_BUILD_NO_FBX_IMPORTER #include "FBXDocument.h" #include "FBXMeshGeometry.h" #include "FBXParser.h" #include "FBXUtil.h" #include "FBXImporter.h" #include "FBXImportSettings.h" #include "FBXDocumentUtil.h" #include "FBXProperties.h" #include #include namespace Assimp { namespace FBX { using namespace Util; // ------------------------------------------------------------------------------------------------ LazyObject::LazyObject(uint64_t id, const Element& element, const Document& doc) : doc(doc) , element(element) , id(id) , flags() { } // ------------------------------------------------------------------------------------------------ LazyObject::~LazyObject() { } // ------------------------------------------------------------------------------------------------ static void dumpObjectClassInfo( const char* obtype, const std::string &classtag ) { DefaultLogger::get()->debug( "obtype: " + std::string(obtype )); DefaultLogger::get()->debug( "Classtag: " + classtag ); } // ------------------------------------------------------------------------------------------------ const Object* LazyObject::Get(bool dieOnError) { if(IsBeingConstructed() || FailedToConstruct()) { return NULL; } if (object.get()) { return object.get(); } // if this is the root object, we return a dummy since there // is no root object int he fbx file - it is just referenced // with id 0. if(id == 0L) { object.reset(new Object(id, element, "Model::RootNode")); return object.get(); } const Token& key = element.KeyToken(); const TokenList& tokens = element.Tokens(); if(tokens.size() < 3) { DOMError("expected at least 3 tokens: id, name and class tag",&element); } const char* err; std::string name = ParseTokenAsString(*tokens[1],err); if (err) { DOMError(err,&element); } // small fix for binary reading: binary fbx files don't use // prefixes such as Model:: in front of their names. The // loading code expects this at many places, though! // so convert the binary representation (a 0x0001) to the // double colon notation. if(tokens[1]->IsBinary()) { for (size_t i = 0; i < name.length(); ++i) { if (name[i] == 0x0 && name[i+1] == 0x1) { name = name.substr(i+2) + "::" + name.substr(0,i); } } } const std::string classtag = ParseTokenAsString(*tokens[2],err); if (err) { DOMError(err,&element); } // prevent recursive calls flags |= BEING_CONSTRUCTED; try { // this needs to be relatively fast since it happens a lot, // so avoid constructing strings all the time. const char* obtype = key.begin(); const size_t length = static_cast(key.end()-key.begin()); // For debugging //dumpObjectClassInfo( objtype, classtag ); if (!strncmp(obtype,"Geometry",length)) { if (!strcmp(classtag.c_str(),"Mesh")) { object.reset(new MeshGeometry(id,element,name,doc)); } } else if (!strncmp(obtype,"NodeAttribute",length)) { if (!strcmp(classtag.c_str(),"Camera")) { object.reset(new Camera(id,element,doc,name)); } else if (!strcmp(classtag.c_str(),"CameraSwitcher")) { object.reset(new CameraSwitcher(id,element,doc,name)); } else if (!strcmp(classtag.c_str(),"Light")) { object.reset(new Light(id,element,doc,name)); } else if (!strcmp(classtag.c_str(),"Null")) { object.reset(new Null(id,element,doc,name)); } else if (!strcmp(classtag.c_str(),"LimbNode")) { object.reset(new LimbNode(id,element,doc,name)); } } else if (!strncmp(obtype,"Deformer",length)) { if (!strcmp(classtag.c_str(),"Cluster")) { object.reset(new Cluster(id,element,doc,name)); } else if (!strcmp(classtag.c_str(),"Skin")) { object.reset(new Skin(id,element,doc,name)); } } else if ( !strncmp( obtype, "Model", length ) ) { // FK and IK effectors are not supported if ( strcmp( classtag.c_str(), "IKEffector" ) && strcmp( classtag.c_str(), "FKEffector" ) ) { object.reset( new Model( id, element, doc, name ) ); } } else if (!strncmp(obtype,"Material",length)) { object.reset(new Material(id,element,doc,name)); } else if (!strncmp(obtype,"Texture",length)) { object.reset(new Texture(id,element,doc,name)); } else if (!strncmp(obtype,"LayeredTexture",length)) { object.reset(new LayeredTexture(id,element,doc,name)); } else if (!strncmp(obtype,"Video",length)) { object.reset(new Video(id,element,doc,name)); } else if (!strncmp(obtype,"AnimationStack",length)) { object.reset(new AnimationStack(id,element,name,doc)); } else if (!strncmp(obtype,"AnimationLayer",length)) { object.reset(new AnimationLayer(id,element,name,doc)); } // note: order matters for these two else if (!strncmp(obtype,"AnimationCurve",length)) { object.reset(new AnimationCurve(id,element,name,doc)); } else if (!strncmp(obtype,"AnimationCurveNode",length)) { object.reset(new AnimationCurveNode(id,element,name,doc)); } } catch(std::exception& ex) { flags &= ~BEING_CONSTRUCTED; flags |= FAILED_TO_CONSTRUCT; if(dieOnError || doc.Settings().strictMode) { throw; } // note: the error message is already formatted, so raw logging is ok if(!DefaultLogger::isNullLogger()) { DefaultLogger::get()->error(ex.what()); } return NULL; } if (!object.get()) { //DOMError("failed to convert element to DOM object, class: " + classtag + ", name: " + name,&element); } flags &= ~BEING_CONSTRUCTED; return object.get(); } // ------------------------------------------------------------------------------------------------ Object::Object(uint64_t id, const Element& element, const std::string& name) : element(element) , name(name) , id(id) { } // ------------------------------------------------------------------------------------------------ Object::~Object() { } // ------------------------------------------------------------------------------------------------ FileGlobalSettings::FileGlobalSettings(const Document& doc, std::shared_ptr props) : props(props) , doc(doc) { // empty } // ------------------------------------------------------------------------------------------------ FileGlobalSettings::~FileGlobalSettings() { // empty } // ------------------------------------------------------------------------------------------------ Document::Document(const Parser& parser, const ImportSettings& settings) : settings(settings) , parser(parser) { // Cannot use array default initialization syntax because vc8 fails on it for (auto &timeStamp : creationTimeStamp) { timeStamp = 0; } ReadHeader(); ReadPropertyTemplates(); ReadGlobalSettings(); // This order is important, connections need parsed objects to check // whether connections are ok or not. Objects may not be evaluated yet, // though, since this may require valid connections. ReadObjects(); ReadConnections(); } // ------------------------------------------------------------------------------------------------ Document::~Document() { for(ObjectMap::value_type& v : objects) { delete v.second; } for(ConnectionMap::value_type& v : src_connections) { delete v.second; } // |dest_connections| contain the same Connection objects as the |src_connections| } // ------------------------------------------------------------------------------------------------ static const int LowerSupportedVersion = 7100; static const int UpperSupportedVersion = 7400; void Document::ReadHeader() { // Read ID objects from "Objects" section const Scope& sc = parser.GetRootScope(); const Element* const ehead = sc["FBXHeaderExtension"]; if(!ehead || !ehead->Compound()) { DOMError("no FBXHeaderExtension dictionary found"); } const Scope& shead = *ehead->Compound(); fbxVersion = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(shead,"FBXVersion",ehead),0)); // While we may have some success with newer files, we don't support // the older 6.n fbx format if(fbxVersion < LowerSupportedVersion ) { DOMError("unsupported, old format version, supported are only FBX 2011, FBX 2012 and FBX 2013"); } if(fbxVersion > UpperSupportedVersion ) { if(Settings().strictMode) { DOMError("unsupported, newer format version, supported are only FBX 2011, FBX 2012 and FBX 2013" " (turn off strict mode to try anyhow) "); } else { DOMWarning("unsupported, newer format version, supported are only FBX 2011, FBX 2012 and FBX 2013," " trying to read it nevertheless"); } } const Element* const ecreator = shead["Creator"]; if(ecreator) { creator = ParseTokenAsString(GetRequiredToken(*ecreator,0)); } const Element* const etimestamp = shead["CreationTimeStamp"]; if(etimestamp && etimestamp->Compound()) { const Scope& stimestamp = *etimestamp->Compound(); creationTimeStamp[0] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Year"),0)); creationTimeStamp[1] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Month"),0)); creationTimeStamp[2] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Day"),0)); creationTimeStamp[3] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Hour"),0)); creationTimeStamp[4] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Minute"),0)); creationTimeStamp[5] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Second"),0)); creationTimeStamp[6] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Millisecond"),0)); } } // ------------------------------------------------------------------------------------------------ void Document::ReadGlobalSettings() { const Scope& sc = parser.GetRootScope(); const Element* const ehead = sc["GlobalSettings"]; if(!ehead || !ehead->Compound()) { DOMWarning("no GlobalSettings dictionary found"); globals.reset(new FileGlobalSettings(*this, std::make_shared())); return; } std::shared_ptr props = GetPropertyTable(*this, "", *ehead, *ehead->Compound(), true); if(!props) { DOMError("GlobalSettings dictionary contains no property table"); } globals.reset(new FileGlobalSettings(*this, props)); } // ------------------------------------------------------------------------------------------------ void Document::ReadObjects() { // read ID objects from "Objects" section const Scope& sc = parser.GetRootScope(); const Element* const eobjects = sc["Objects"]; if(!eobjects || !eobjects->Compound()) { DOMError("no Objects dictionary found"); } // add a dummy entry to represent the Model::RootNode object (id 0), // which is only indirectly defined in the input file objects[0] = new LazyObject(0L, *eobjects, *this); const Scope& sobjects = *eobjects->Compound(); for(const ElementMap::value_type& el : sobjects.Elements()) { // extract ID const TokenList& tok = el.second->Tokens(); if (tok.empty()) { DOMError("expected ID after object key",el.second); } const char* err; const uint64_t id = ParseTokenAsID(*tok[0], err); if(err) { DOMError(err,el.second); } // id=0 is normally implicit if(id == 0L) { DOMError("encountered object with implicitly defined id 0",el.second); } if(objects.find(id) != objects.end()) { DOMWarning("encountered duplicate object id, ignoring first occurrence",el.second); } objects[id] = new LazyObject(id, *el.second, *this); // grab all animation stacks upfront since there is no listing of them if(!strcmp(el.first.c_str(),"AnimationStack")) { animationStacks.push_back(id); } } } // ------------------------------------------------------------------------------------------------ void Document::ReadPropertyTemplates() { const Scope& sc = parser.GetRootScope(); // read property templates from "Definitions" section const Element* const edefs = sc["Definitions"]; if(!edefs || !edefs->Compound()) { DOMWarning("no Definitions dictionary found"); return; } const Scope& sdefs = *edefs->Compound(); const ElementCollection otypes = sdefs.GetCollection("ObjectType"); for(ElementMap::const_iterator it = otypes.first; it != otypes.second; ++it) { const Element& el = *(*it).second; const Scope* sc = el.Compound(); if(!sc) { DOMWarning("expected nested scope in ObjectType, ignoring",&el); continue; } const TokenList& tok = el.Tokens(); if(tok.empty()) { DOMWarning("expected name for ObjectType element, ignoring",&el); continue; } const std::string& oname = ParseTokenAsString(*tok[0]); const ElementCollection templs = sc->GetCollection("PropertyTemplate"); for(ElementMap::const_iterator it = templs.first; it != templs.second; ++it) { const Element& el = *(*it).second; const Scope* sc = el.Compound(); if(!sc) { DOMWarning("expected nested scope in PropertyTemplate, ignoring",&el); continue; } const TokenList& tok = el.Tokens(); if(tok.empty()) { DOMWarning("expected name for PropertyTemplate element, ignoring",&el); continue; } const std::string& pname = ParseTokenAsString(*tok[0]); const Element* Properties70 = (*sc)["Properties70"]; if(Properties70) { std::shared_ptr props = std::make_shared( *Properties70,std::shared_ptr(static_cast(NULL)) ); templates[oname+"."+pname] = props; } } } } // ------------------------------------------------------------------------------------------------ void Document::ReadConnections() { const Scope& sc = parser.GetRootScope(); // read property templates from "Definitions" section const Element* const econns = sc["Connections"]; if(!econns || !econns->Compound()) { DOMError("no Connections dictionary found"); } uint64_t insertionOrder = 0l; const Scope& sconns = *econns->Compound(); const ElementCollection conns = sconns.GetCollection("C"); for(ElementMap::const_iterator it = conns.first; it != conns.second; ++it) { const Element& el = *(*it).second; const std::string& type = ParseTokenAsString(GetRequiredToken(el,0)); // PP = property-property connection, ignored for now // (tokens: "PP", ID1, "Property1", ID2, "Property2") if(type == "PP") continue; const uint64_t src = ParseTokenAsID(GetRequiredToken(el,1)); const uint64_t dest = ParseTokenAsID(GetRequiredToken(el,2)); // OO = object-object connection // OP = object-property connection, in which case the destination property follows the object ID const std::string& prop = (type == "OP" ? ParseTokenAsString(GetRequiredToken(el,3)) : ""); if(objects.find(src) == objects.end()) { DOMWarning("source object for connection does not exist",&el); continue; } // dest may be 0 (root node) but we added a dummy object before if(objects.find(dest) == objects.end()) { DOMWarning("destination object for connection does not exist",&el); continue; } // add new connection const Connection* const c = new Connection(insertionOrder++,src,dest,prop,*this); src_connections.insert(ConnectionMap::value_type(src,c)); dest_connections.insert(ConnectionMap::value_type(dest,c)); } } // ------------------------------------------------------------------------------------------------ const std::vector& Document::AnimationStacks() const { if (!animationStacksResolved.empty() || !animationStacks.size()) { return animationStacksResolved; } animationStacksResolved.reserve(animationStacks.size()); for(uint64_t id : animationStacks) { LazyObject* const lazy = GetObject(id); const AnimationStack* stack; if(!lazy || !(stack = lazy->Get())) { 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 Document::GetConnectionsSequenced(uint64_t id, const ConnectionMap& conns) const { std::vector temp; const std::pair 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_fun(&Connection::Compare)); return temp; // NRVO should handle this } // ------------------------------------------------------------------------------------------------ std::vector 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 && 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 temp; const std::pair 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(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_fun(&Connection::Compare)); return temp; // NRVO should handle this } // ------------------------------------------------------------------------------------------------ std::vector Document::GetConnectionsBySourceSequenced(uint64_t source) const { return GetConnectionsSequenced(source, ConnectionsBySource()); } // ------------------------------------------------------------------------------------------------ std::vector Document::GetConnectionsBySourceSequenced(uint64_t dest, const char* classname) const { const char* arr[] = {classname}; return GetConnectionsBySourceSequenced(dest, arr,1); } // ------------------------------------------------------------------------------------------------ std::vector Document::GetConnectionsBySourceSequenced(uint64_t source, const char* const* classnames, size_t count) const { return GetConnectionsSequenced(source, true, ConnectionsBySource(),classnames, count); } // ------------------------------------------------------------------------------------------------ std::vector Document::GetConnectionsByDestinationSequenced(uint64_t dest, const char* classname) const { const char* arr[] = {classname}; return GetConnectionsByDestinationSequenced(dest, arr,1); } // ------------------------------------------------------------------------------------------------ std::vector Document::GetConnectionsByDestinationSequenced(uint64_t dest) const { return GetConnectionsSequenced(dest, ConnectionsByDestination()); } // ------------------------------------------------------------------------------------------------ std::vector 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() { } // ------------------------------------------------------------------------------------------------ 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