- fbx: initial code to read animations plus the accompanying DOM classes.
Alexander Gessler
parent
ab93c6f38e
commit
67c55990cd
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@ -414,6 +414,7 @@ SET(FBX_SRCS
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FBXMeshGeometry.cpp
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FBXMaterial.cpp
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FBXModel.cpp
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FBXAnimation.cpp
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)
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SOURCE_GROUP( FBX FILES ${FBX_SRCS})
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@ -0,0 +1,216 @@
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/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2012, 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 FBXAnimation.cpp
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* @brief Assimp::FBX::AnimationCurve, Assimp::FBX::AnimationCurveNode,
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* Assimp::FBX::AnimationLayer, Assimp::FBX::AnimationStack
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*/
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#include "AssimpPCH.h"
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#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
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#include "FBXParser.h"
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#include "FBXDocument.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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namespace Assimp {
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namespace FBX {
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using namespace Util;
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// ------------------------------------------------------------------------------------------------
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AnimationCurve::AnimationCurve(uint64_t id, const Element& element, const std::string& name, const Document& doc)
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: Object(id, element, name)
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{
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const Scope& sc = GetRequiredScope(element);
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const Element& KeyTime = GetRequiredElement(sc,"KeyTime");
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const Element& KeyValueFloat = GetRequiredElement(sc,"KeyValueFloat");
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ReadVectorDataArray(keys, KeyTime);
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ReadVectorDataArray(values, KeyValueFloat);
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if(keys.size() != values.size()) {
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DOMError("the number of key times does not match the number of keyframe values",&KeyTime);
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}
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const Element* KeyAttrDataFloat = sc["KeyAttrDataFloat"];
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if(KeyAttrDataFloat) {
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ReadVectorDataArray(attributes, *KeyAttrDataFloat);
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}
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const Element* KeyAttrFlags = sc["KeyAttrFlags"];
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if(KeyAttrFlags) {
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flags = ParseTokenAsInt(GetRequiredToken(*KeyAttrFlags,0));
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}
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}
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// ------------------------------------------------------------------------------------------------
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AnimationCurve::~AnimationCurve()
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{
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}
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// ------------------------------------------------------------------------------------------------
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AnimationCurveNode::AnimationCurveNode(uint64_t id, const Element& element, const std::string& name, const Document& doc)
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: Object(id, element, name)
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{
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// resolve attached animation curves
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const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
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BOOST_FOREACH(const Connection* con, conns) {
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// link should go for a property
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if (con->PropertyName().length()) {
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continue;
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}
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const Object* const ob = con->SourceObject();
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if(!ob) {
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DOMWarning("failed to read source object for AnimationCurve->AnimationCurveNode link, ignoring",&element);
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continue;
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}
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const AnimationCurve* const anim = dynamic_cast<const AnimationCurve*>(ob);
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if(!anim) {
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DOMWarning("source object for ->AnimationCurveNode link is not an AnimationCurve",&element);
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continue;
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}
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curves[con->PropertyName()] = anim;
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}
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}
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// ------------------------------------------------------------------------------------------------
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AnimationCurveNode::~AnimationCurveNode()
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{
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}
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// ------------------------------------------------------------------------------------------------
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AnimationLayer::AnimationLayer(uint64_t id, const Element& element, const std::string& name, const Document& doc)
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: Object(id, element, name)
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{
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const Scope& sc = GetRequiredScope(element);
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props = GetPropertyTable(doc,"AnimationLayer.FbxAnimLayer",element,sc);
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// resolve attached animation nodes
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const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
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nodes.reserve(conns.size());
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BOOST_FOREACH(const Connection* con, conns) {
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// link should not go to a property
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if (con->PropertyName().length()) {
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continue;
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}
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const Object* const ob = con->SourceObject();
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if(!ob) {
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DOMWarning("failed to read source object for AnimationCurveNode->AnimationLayer link, ignoring",&element);
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continue;
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}
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const AnimationCurveNode* const anim = dynamic_cast<const AnimationCurveNode*>(ob);
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if(!anim) {
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DOMWarning("source object for ->AnimationLayer link is not an AnimationCurveNode",&element);
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continue;
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}
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nodes.push_back(anim);
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}
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}
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// ------------------------------------------------------------------------------------------------
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AnimationLayer::~AnimationLayer()
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{
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}
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// ------------------------------------------------------------------------------------------------
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AnimationStack::AnimationStack(uint64_t id, const Element& element, const std::string& name, const Document& doc)
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: Object(id, element, name)
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{
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const Scope& sc = GetRequiredScope(element);
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props = GetPropertyTable(doc,"AnimationStack.FbxAnimStack",element,sc);
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// resolve attached animation layers
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const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
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layers.reserve(conns.size());
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BOOST_FOREACH(const Connection* con, conns) {
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// link should not go to a property
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if (con->PropertyName().length()) {
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continue;
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}
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const Object* const ob = con->SourceObject();
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if(!ob) {
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DOMWarning("failed to read source object for AnimationLayer->AnimationStack link, ignoring",&element);
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continue;
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}
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const AnimationLayer* const anim = dynamic_cast<const AnimationLayer*>(ob);
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if(!anim) {
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DOMWarning("source object for ->AnimationStack link is not an AnimationLayer",&element);
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continue;
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}
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layers.push_back(anim);
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}
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}
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// ------------------------------------------------------------------------------------------------
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AnimationStack::~AnimationStack()
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{
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}
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} //!FBX
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} //!Assimp
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#endif
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@ -307,6 +307,27 @@ void ReadVectorDataArray(std::vector<int>& out, const Element& el)
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}
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// ------------------------------------------------------------------------------------------------
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// read an array of floats
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void ReadVectorDataArray(std::vector<float>& out, const Element& el)
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{
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out.clear();
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const TokenList& tok = el.Tokens();
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const size_t dim = ParseTokenAsDim(*tok[0]);
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// see notes in ReadVectorDataArray()
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out.reserve(dim);
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const Scope& scope = GetRequiredScope(el);
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const Element& a = GetRequiredElement(scope,"a",&el);
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for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
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const float ival = ParseTokenAsFloat(**it++);
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out.push_back(ival);
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}
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}
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// ------------------------------------------------------------------------------------------------
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// read an array of uints
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void ReadVectorDataArray(std::vector<unsigned int>& out, const Element& el)
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@ -424,6 +445,18 @@ const Object* LazyObject::Get()
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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,"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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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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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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if (!object.get()) {
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//DOMError("failed to convert element to DOM object, class: " + classtag + ", name: " + name,&element);
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@ -553,6 +586,11 @@ void Document::ReadObjects()
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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(el.first == "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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@ -659,6 +697,26 @@ void Document::ReadConnections()
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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.size()) {
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return animationStacksResolved;
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}
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animationStacksResolved.reserve(animationStacks.size());
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BOOST_FOREACH(uint64_t id, animationStacks) {
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LazyObject* const lazy = GetObject(id);
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const AnimationStack* stack;
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if(!lazy || !(stack = lazy->Get<AnimationStack>())) {
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DOMWarning("failed to read AnimationStack object");
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continue;
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}
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animationStacksResolved.push_back(stack);
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}
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return animationStacksResolved;
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}
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// ------------------------------------------------------------------------------------------------
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LazyObject* Document::GetObject(uint64_t id) const
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@ -76,9 +76,9 @@ public:
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const Object* Get();
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template <typename T>
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T* Get() {
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const T* Get() {
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const Object* const ob = Get();
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return ob ? dynamic_cast<T*>(ob) : NULL;
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return ob ? dynamic_cast<const T*>(ob) : NULL;
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}
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uint64_t ID() const {
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@ -125,7 +125,7 @@ protected:
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};
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/** DOM base class for FBX models */
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/** DOM base class for FBX models (even though its semantics are more "node" than "model" */
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class Model : public Object
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{
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public:
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@ -404,6 +404,144 @@ private:
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};
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/** Represents a FBX animation curve (i.e. a 1-dimensional set of keyframes and values therefor) */
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class AnimationCurve : public Object
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{
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public:
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AnimationCurve(uint64_t id, const Element& element, const std::string& name, const Document& doc);
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~AnimationCurve();
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public:
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/** get list of keyframe positions (time).
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* Invariant: |GetKeys()| > 0 */
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const std::vector<float>& GetKeys() const {
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return keys;
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}
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/** get list of keyframe values.
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* Invariant: |GetKeys()| == |GetValues()| && |GetKeys()| > 0*/
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const std::vector<float>& GetValues() const {
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return values;
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}
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const std::vector<float>& GetAttributes() const {
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return attributes;
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}
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unsigned int GetFlags() const {
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return flags;
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}
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private:
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std::vector<float> keys;
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std::vector<float> values;
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std::vector<float> attributes;
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unsigned int flags;
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};
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// property-name -> animation curve
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typedef std::map<std::string, const AnimationCurve*> AnimationCurveMap;
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/** Represents a FBX animation curve (i.e. a mapping from single animation curves to nodes) */
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class AnimationCurveNode : public Object
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{
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public:
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AnimationCurveNode(uint64_t id, const Element& element, const std::string& name, const Document& doc);
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~AnimationCurveNode();
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public:
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const PropertyTable& Props() const {
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ai_assert(props.get());
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return *props.get();
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}
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const AnimationCurveMap Curves() const {
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return curves;
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}
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const Model* TargetNode() const {
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return target;
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}
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private:
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const Model* target;
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boost::shared_ptr<const PropertyTable> props;
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AnimationCurveMap curves;
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};
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typedef std::vector<const AnimationCurveNode*> AnimationCurveNodeList;
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/** Represents a FBX animation layer (i.e. a list of node animations) */
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class AnimationLayer : public Object
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{
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public:
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AnimationLayer(uint64_t id, const Element& element, const std::string& name, const Document& doc);
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~AnimationLayer();
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public:
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const PropertyTable& Props() const {
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ai_assert(props.get());
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return *props.get();
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}
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const AnimationCurveNodeList& Nodes() const {
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return nodes;
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}
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private:
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boost::shared_ptr<const PropertyTable> props;
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AnimationCurveNodeList nodes;
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};
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typedef std::vector<const AnimationLayer*> AnimationLayerList;
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/** Represents a FBX animation stack (i.e. a list of animation layers) */
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class AnimationStack : public Object
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{
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public:
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AnimationStack(uint64_t id, const Element& element, const std::string& name, const Document& doc);
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~AnimationStack();
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public:
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const PropertyTable& Props() const {
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ai_assert(props.get());
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return *props.get();
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}
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const AnimationLayerList& Layers() const {
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return layers;
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}
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private:
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boost::shared_ptr<const PropertyTable> props;
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AnimationLayerList layers;
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};
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/** Represents a link between two FBX objects. */
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class Connection
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{
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@ -514,6 +652,8 @@ public:
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std::vector<const Connection*> GetConnectionsBySourceSequenced(uint64_t source) const;
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std::vector<const Connection*> GetConnectionsByDestinationSequenced(uint64_t dest) const;
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const std::vector<const AnimationStack*>& AnimationStacks() const;
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private:
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void ReadHeader();
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@ -536,6 +676,8 @@ private:
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std::string creator;
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unsigned int creationTimeStamp[7];
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std::vector<uint64_t> animationStacks;
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mutable std::vector<const AnimationStack*> animationStacksResolved;
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};
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}
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@ -88,6 +88,9 @@ void ReadVectorDataArray(std::vector<aiVector2D>& out, const Element& el);
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// read an array of ints
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void ReadVectorDataArray(std::vector<int>& out, const Element& el);
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// read an array of floats
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void ReadVectorDataArray(std::vector<float>& out, const Element& el);
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// read an array of uints
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void ReadVectorDataArray(std::vector<unsigned int>& out, const Element& el);
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@ -2055,6 +2055,10 @@
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<Filter
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Name="fbx"
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>
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<File
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RelativePath="..\..\code\FBXAnimation.cpp"
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>
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</File>
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<File
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RelativePath="..\..\code\FBXCompileConfig.h"
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>
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