/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org/ Copyright (c) 2000-2005 The OGRE Team Also see acknowledgements in Readme.html This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA, or go to http://www.gnu.org/copyleft/lesser.txt. ----------------------------------------------------------------------------- */ #include "OgreXMLSkeletonSerializer.h" #include "OgreSkeleton.h" #include "OgreAnimation.h" #include "OgreAnimationTrack.h" #include "OgreKeyFrame.h" #include "OgreBone.h" #include "OgreString.h" #include "OgreLogManager.h" #include "OgreStringConverter.h" #include "Ogre.h" #include namespace Ogre { //--------------------------------------------------------------------- XMLSkeletonSerializer::XMLSkeletonSerializer() { } //--------------------------------------------------------------------- XMLSkeletonSerializer::~XMLSkeletonSerializer() { } //--------------------------------------------------------------------- void XMLSkeletonSerializer::importSkeleton(const String& filename, Skeleton* pSkeleton) { LogManager::getSingleton().logMessage("XMLSkeletonSerializer: reading XML data from " + filename + "..."); mXMLDoc = new TiXmlDocument(filename); mXMLDoc->LoadFile(); TiXmlElement* elem; TiXmlElement* rootElem = mXMLDoc->RootElement(); // Bones elem = rootElem->FirstChildElement("bones"); if (elem) { readBones(pSkeleton, elem); elem = rootElem->FirstChildElement("bonehierarchy"); if (elem) { createHierarchy(pSkeleton, elem) ; elem = rootElem->FirstChildElement("bones"); if (elem) { readBones2(pSkeleton, elem); elem = rootElem->FirstChildElement("animations"); if (elem) { readAnimations(pSkeleton, elem); } elem = rootElem->FirstChildElement("animationlinks"); if (elem) { readSkeletonAnimationLinks(pSkeleton, elem); } } } } LogManager::getSingleton().logMessage("XMLSkeletonSerializer: Finished. Running SkeletonSerializer..." ); } //--------------------------------------------------------------------- // sets names void XMLSkeletonSerializer::readBones(Skeleton* skel, TiXmlElement* mBonesNode) { LogManager::getSingleton().logMessage("XMLSkeletonSerializer: Reading Bones name..."); Bone* btmp ; Quaternion quat ; for (TiXmlElement* bonElem = mBonesNode->FirstChildElement(); bonElem != 0; bonElem = bonElem->NextSiblingElement()) { String name = bonElem->Attribute("name"); int id = StringConverter::parseInt(bonElem->Attribute("id")); btmp = skel->createBone(name,id) ; } } // --------------------------------------------------------- // set positions and orientations. void XMLSkeletonSerializer::readBones2(Skeleton* skel, TiXmlElement* mBonesNode) { LogManager::getSingleton().logMessage("XMLSkeletonSerializer: Reading Bones data..."); Bone* btmp ; Quaternion quat ; for (TiXmlElement* bonElem = mBonesNode->FirstChildElement(); bonElem != 0; bonElem = bonElem->NextSiblingElement()) { String name = bonElem->Attribute("name"); int id = StringConverter::parseInt(bonElem->Attribute("id")); TiXmlElement* posElem = bonElem->FirstChildElement("position"); TiXmlElement* rotElem = bonElem->FirstChildElement("rotation"); TiXmlElement* axisElem = rotElem->FirstChildElement("axis"); Vector3 pos; Vector3 axis; Radian angle ; pos.x = StringConverter::parseReal(posElem->Attribute("x")); pos.y = StringConverter::parseReal(posElem->Attribute("y")); pos.z = StringConverter::parseReal(posElem->Attribute("z")); angle = Radian(StringConverter::parseReal(rotElem->Attribute("angle"))); axis.x = StringConverter::parseReal(axisElem->Attribute("x")); axis.y = StringConverter::parseReal(axisElem->Attribute("y")); axis.z = StringConverter::parseReal(axisElem->Attribute("z")); /*LogManager::getSingleton().logMessage("bone " + name + " : position(" + StringConverter::toString(pos.x) + "," + StringConverter::toString(pos.y) + "," + StringConverter::toString(pos.z) + ")" + " - angle: " + StringConverter::toString(angle) +" - axe: " + StringConverter::toString(axis.x) + "," + StringConverter::toString(axis.y) + "," + StringConverter::toString(axis.z) ); */ btmp = skel->getBone(name) ; btmp -> setPosition(pos); quat.FromAngleAxis(angle,axis); btmp -> setOrientation(quat) ; } // bones } //------------------------------------------------------------------- void XMLSkeletonSerializer::createHierarchy(Skeleton* skel, TiXmlElement* mHierNode) { LogManager::getSingleton().logMessage("XMLSkeletonSerializer: Reading Hierarchy data..."); Bone* bone ; Bone* parent ; String boneName ; String parentName ; for (TiXmlElement* hierElem = mHierNode->FirstChildElement() ; hierElem != 0; hierElem = hierElem->NextSiblingElement()) { boneName = hierElem->Attribute("bone"); parentName = hierElem->Attribute("parent"); bone = skel->getBone(boneName); parent = skel->getBone(parentName); parent ->addChild(bone) ; //LogManager::getSingleton().logMessage("XMLSkeletonSerialiser: lien: " + parent->getName() + "->" + bone->getName()); } } //--------------------------------------------------------------------- void XMLSkeletonSerializer::readAnimations(Skeleton* skel, TiXmlElement* mAnimNode) { Animation * anim ; AnimationTrack * track ; LogManager::getSingleton().logMessage("XMLSkeletonSerializer: Reading Animations data..."); for (TiXmlElement* animElem = mAnimNode->FirstChildElement("animation"); animElem != 0; animElem = animElem->NextSiblingElement()) { String name = animElem->Attribute("name"); Real length = StringConverter::parseReal(animElem->Attribute("length")); anim = skel->createAnimation(name,length); anim->setInterpolationMode(Animation::IM_LINEAR) ; LogManager::getSingleton().logMessage("Animation: nom: " + name + " et longueur: " + StringConverter::toString(length) ); // lecture des tracks int trackIndex = 0; TiXmlElement* tracksNode = animElem->FirstChildElement("tracks"); for (TiXmlElement* trackElem = tracksNode->FirstChildElement("track"); trackElem != 0; trackElem = trackElem->NextSiblingElement()) { String boneName = trackElem->Attribute("bone"); //LogManager::getSingleton().logMessage("Track sur le bone: " + boneName ); track = anim->createTrack(trackIndex++,skel->getBone(boneName)); readKeyFrames(track, trackElem->FirstChildElement("keyframes")); } } } //--------------------------------------------------------------------- void XMLSkeletonSerializer::readKeyFrames(AnimationTrack* track, TiXmlElement* mKeyfNode) { KeyFrame* kf ; Quaternion q ; for (TiXmlElement* keyfElem = mKeyfNode->FirstChildElement("keyframe"); keyfElem != 0; keyfElem = keyfElem->NextSiblingElement()) { Vector3 trans; Vector3 axis; Radian angle; Real time; // Get time and create keyframe time = StringConverter::parseReal(keyfElem->Attribute("time")); kf = track->createKeyFrame(time); // Optional translate TiXmlElement* transElem = keyfElem->FirstChildElement("translate"); if (transElem) { trans.x = StringConverter::parseReal(transElem->Attribute("x")); trans.y = StringConverter::parseReal(transElem->Attribute("y")); trans.z = StringConverter::parseReal(transElem->Attribute("z")); kf->setTranslate(trans) ; } // Optional rotate TiXmlElement* rotElem = keyfElem->FirstChildElement("rotate"); if (rotElem) { TiXmlElement* axisElem = rotElem->FirstChildElement("axis"); if (!axisElem) { OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Missing 'axis' element " "expected under parent 'rotate'", "MXLSkeletonSerializer::readKeyFrames"); } angle = Radian(StringConverter::parseReal(rotElem->Attribute("angle"))); axis.x = StringConverter::parseReal(axisElem->Attribute("x")); axis.y = StringConverter::parseReal(axisElem->Attribute("y")); axis.z = StringConverter::parseReal(axisElem->Attribute("z")); q.FromAngleAxis(angle,axis); kf->setRotation(q) ; } // Optional scale TiXmlElement* scaleElem = keyfElem->FirstChildElement("scale"); if (scaleElem) { // Uniform scale or per axis? const char* factorAttrib = scaleElem->Attribute("factor"); if (factorAttrib) { // Uniform scale Real factor = StringConverter::parseReal(factorAttrib); kf->setScale(Vector3(factor, factor, factor)); } else { // axis scale Real xs = 1.0f, ys = 1.0f, zs=1.0f; const char* factorString = scaleElem->Attribute("x"); if(factorString) { xs = StringConverter::parseReal(factorString); } factorString = scaleElem->Attribute("y"); if(factorString) { ys = StringConverter::parseReal(factorString); } factorString = scaleElem->Attribute("z"); if(factorString) { zs = StringConverter::parseReal(factorString); } kf->setScale(Vector3(xs, ys, zs)); } } /* LogManager::getSingleton().logMessage("Keyframe: translation(" + StringConverter::toString(trans.x) + "," + StringConverter::toString(trans.y) + "," + StringConverter::toString(trans.z) + ")" + " - angle: " + StringConverter::toString(angle) +" - axe: " + StringConverter::toString(axis.x) + "," + StringConverter::toString(axis.y) + "," + StringConverter::toString(axis.z) ); */ } } //--------------------------------------------------------------------- void XMLSkeletonSerializer::exportSkeleton(const Skeleton* pSkeleton, const String& filename) { LogManager::getSingleton().logMessage("XMLSkeletonSerializer writing " " skeleton data to " + filename + "..."); mXMLDoc = new TiXmlDocument(); mXMLDoc->InsertEndChild(TiXmlElement("skeleton")); TiXmlElement* rootNode = mXMLDoc->RootElement(); LogManager::getSingleton().logMessage("Populating DOM..."); // Write main skeleton data LogManager::getSingleton().logMessage("Exporting bones.."); writeSkeleton(pSkeleton); LogManager::getSingleton().logMessage("Bones exported."); // Write all animations unsigned short numAnims = pSkeleton->getNumAnimations(); String msg = "Exporting animations, count=" + StringConverter::toString(numAnims); LogManager::getSingleton().logMessage(msg); TiXmlElement* animsNode = rootNode->InsertEndChild(TiXmlElement("animations"))->ToElement(); for (unsigned short i = 0; i < numAnims; ++i) { Animation* pAnim = pSkeleton->getAnimation(i); msg = "Exporting animation: " + pAnim->getName(); LogManager::getSingleton().logMessage(msg); writeAnimation(animsNode, pAnim); LogManager::getSingleton().logMessage("Animation exported."); } // Write links Skeleton::LinkedSkeletonAnimSourceIterator linkIt = pSkeleton->getLinkedSkeletonAnimationSourceIterator(); if (linkIt.hasMoreElements()) { LogManager::getSingleton().logMessage("Exporting animation links."); TiXmlElement* linksNode = rootNode->InsertEndChild(TiXmlElement("animationlinks"))->ToElement(); while(linkIt.hasMoreElements()) { const LinkedSkeletonAnimationSource& link = linkIt.getNext(); writeSkeletonAnimationLink(linksNode, link); } } LogManager::getSingleton().logMessage("DOM populated, writing XML file.."); // Write out to a file mXMLDoc->SaveFile(filename); delete mXMLDoc; LogManager::getSingleton().logMessage("XMLSkeletonSerializer export successful."); } //--------------------------------------------------------------------- void XMLSkeletonSerializer::writeSkeleton(const Skeleton* pSkel) { TiXmlElement* rootNode = mXMLDoc->RootElement(); TiXmlElement* bonesElem = rootNode->InsertEndChild(TiXmlElement("bones"))->ToElement(); unsigned short numBones = pSkel->getNumBones(); LogManager::getSingleton().logMessage("There are " + StringConverter::toString(numBones) + " bones."); unsigned short i; for (i = 0; i < numBones; ++i) { LogManager::getSingleton().logMessage(" Exporting Bone number " + StringConverter::toString(i)); Bone* pBone = pSkel->getBone(i); writeBone(bonesElem, pBone); } // Write parents TiXmlElement* hierElem = rootNode->InsertEndChild(TiXmlElement("bonehierarchy"))->ToElement(); for (i = 0; i < numBones; ++i) { Bone* pBone = pSkel->getBone(i); unsigned short handle = pBone->getHandle(); String name = pBone->getName() ; /* BEFORE if (handle != 0) // root bone { Bone* pParent = (Bone*)pBone->getParent(); writeBoneParent(hierElem, name, pParent->getName()); } *//* AFTER */ if ((pBone->getParent())!=NULL) // root bone { Bone* pParent = (Bone*)pBone->getParent(); writeBoneParent(hierElem, name, pParent->getName()); } } } //--------------------------------------------------------------------- void XMLSkeletonSerializer::writeBone(TiXmlElement* bonesElement, const Bone* pBone) { TiXmlElement* boneElem = bonesElement->InsertEndChild(TiXmlElement("bone"))->ToElement(); // Bone name & handle boneElem->SetAttribute("id", StringConverter::toString(pBone->getHandle())); boneElem->SetAttribute("name", pBone->getName()); // Position TiXmlElement* subNode = boneElem->InsertEndChild(TiXmlElement("position"))->ToElement(); Vector3 pos = pBone->getPosition(); subNode->SetAttribute("x", StringConverter::toString(pos.x)); subNode->SetAttribute("y", StringConverter::toString(pos.y)); subNode->SetAttribute("z", StringConverter::toString(pos.z)); // Orientation subNode = boneElem->InsertEndChild(TiXmlElement("rotation"))->ToElement(); // Show Quaternion as angle / axis Radian angle; Vector3 axis; pBone->getOrientation().ToAngleAxis(angle, axis); TiXmlElement* axisNode = subNode->InsertEndChild(TiXmlElement("axis"))->ToElement(); subNode->SetAttribute("angle", StringConverter::toString(angle.valueRadians())); axisNode->SetAttribute("x", StringConverter::toString(axis.x)); axisNode->SetAttribute("y", StringConverter::toString(axis.y)); axisNode->SetAttribute("z", StringConverter::toString(axis.z)); } //--------------------------------------------------------------------- // // Modifications effectuées: // // on stoque les noms et pas les Id. c'est plus lisibles. void XMLSkeletonSerializer::writeBoneParent(TiXmlElement* boneHierarchyNode, String boneName, String parentName) { TiXmlElement* boneParentNode = boneHierarchyNode->InsertEndChild(TiXmlElement("boneparent"))->ToElement(); /* boneParentNode->SetAttribute("boneid", StringConverter::toString(boneId)); boneParentNode->SetAttribute("parentid", StringConverter::toString(parentId)); */ // Modifications: on stoque les noms./ boneParentNode->SetAttribute("bone", boneName); boneParentNode->SetAttribute("parent", parentName); } //--------------------------------------------------------------------- void XMLSkeletonSerializer::writeAnimation(TiXmlElement* animsNode, const Animation* anim) { TiXmlElement* animNode = animsNode->InsertEndChild(TiXmlElement("animation"))->ToElement(); animNode->SetAttribute("name", anim->getName()); animNode->SetAttribute("length", StringConverter::toString(anim->getLength())); // Write all tracks TiXmlElement* tracksNode = animNode->InsertEndChild(TiXmlElement("tracks"))->ToElement(); Animation::TrackIterator trackIt = anim->getTrackIterator(); while (trackIt.hasMoreElements()) { writeAnimationTrack(tracksNode, trackIt.getNext()); } } //--------------------------------------------------------------------- void XMLSkeletonSerializer::writeAnimationTrack(TiXmlElement* tracksNode, const AnimationTrack* track) { TiXmlElement* trackNode = tracksNode->InsertEndChild(TiXmlElement("track"))->ToElement(); // unsigned short boneIndex : Index of bone to apply to Bone* bone = (Bone*)track->getAssociatedNode(); //unsigned short boneid = bone->getHandle(); String boneName = bone->getName(); trackNode->SetAttribute("bone", boneName); // Write all keyframes TiXmlElement* keysNode = trackNode->InsertEndChild(TiXmlElement("keyframes"))->ToElement(); for (unsigned short i = 0; i < track->getNumKeyFrames(); ++i) { writeKeyFrame(keysNode, track->getKeyFrame(i)); } } //--------------------------------------------------------------------- void XMLSkeletonSerializer::writeKeyFrame(TiXmlElement* keysNode, const KeyFrame* key) { TiXmlElement* keyNode = keysNode->InsertEndChild(TiXmlElement("keyframe"))->ToElement(); keyNode->SetAttribute("time", StringConverter::toString(key->getTime())); TiXmlElement* transNode = keyNode->InsertEndChild(TiXmlElement("translate"))->ToElement(); Vector3 trans = key->getTranslate(); transNode->SetAttribute("x", StringConverter::toString(trans.x)); transNode->SetAttribute("y", StringConverter::toString(trans.y)); transNode->SetAttribute("z", StringConverter::toString(trans.z)); TiXmlElement* rotNode = keyNode->InsertEndChild(TiXmlElement("rotate"))->ToElement(); // Show Quaternion as angle / axis Radian angle; Vector3 axis; key->getRotation().ToAngleAxis(angle, axis); TiXmlElement* axisNode = rotNode->InsertEndChild(TiXmlElement("axis"))->ToElement(); rotNode->SetAttribute("angle", StringConverter::toString(angle.valueRadians())); axisNode->SetAttribute("x", StringConverter::toString(axis.x)); axisNode->SetAttribute("y", StringConverter::toString(axis.y)); axisNode->SetAttribute("z", StringConverter::toString(axis.z)); TiXmlElement* scaleNode = keyNode->InsertEndChild(TiXmlElement("scale"))->ToElement(); scaleNode->SetAttribute("x", StringConverter::toString(key->getScale().x)); scaleNode->SetAttribute("y", StringConverter::toString(key->getScale().y)); scaleNode->SetAttribute("z", StringConverter::toString(key->getScale().z)); } //--------------------------------------------------------------------- void XMLSkeletonSerializer::writeSkeletonAnimationLink(TiXmlElement* linksNode, const LinkedSkeletonAnimationSource& link) { TiXmlElement* linkNode = linksNode->InsertEndChild(TiXmlElement("animationlink"))->ToElement(); linkNode->SetAttribute("skeletonName", link.skeletonName); linkNode->SetAttribute("scale", StringConverter::toString(link.scale)); } //--------------------------------------------------------------------- void XMLSkeletonSerializer::readSkeletonAnimationLinks(Skeleton* skel, TiXmlElement* linksNode) { LogManager::getSingleton().logMessage("XMLSkeletonSerializer: Reading Animations links..."); for (TiXmlElement* linkElem = linksNode->FirstChildElement("animationlink"); linkElem != 0; linkElem = linkElem->NextSiblingElement()) { String skelName = linkElem->Attribute("skeletonName"); const char* strScale = linkElem->Attribute("scale"); Real scale; // Scale optional if (strScale == 0) { scale = 1.0f; } else { scale = StringConverter::parseReal(strScale); } skel->addLinkedSkeletonAnimationSource(skelName, scale); } } }