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Viewing changes to dae2ogre/src/DAE2OgreSceneGraphWriter.cpp

  • Committer: Package Import Robot
  • Author(s): Matteo F. Vescovi
  • Date: 2015-05-14 17:23:27 UTC
  • Revision ID: package-import@ubuntu.com-20150514172327-f862u8envms01fra
Tags: upstream-0.1.0~20140703.ddf8f47+dfsg1
Import upstream version 0.1.0~20140703.ddf8f47+dfsg1

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dae2ogre/src/DAE2OgreSceneGraphWriter.cpp
 
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/*
 
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Copyright (c) 2009 NetAllied Systems GmbH
 
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This file is part of dae2ogre.
 
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Licensed under the MIT Open Source License, 
 
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for details please see LICENSE file or the website
 
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http://www.opensource.org/licenses/mit-license.php
 
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*/
 
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#include "DAE2OgreStableHeaders.h"
 
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#include "DAE2OgreSceneGraphWriter.h"
 
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namespace DAE2Ogre
 
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{
 
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    //------------------------------
 
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        SceneGraphWriter::SceneGraphWriter( OgreWriter* ogreWriter, const COLLADAFW::VisualScene& visualScene, const OgreWriter::LibraryNodesList& libraryNodesList )
 
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                : BaseWriter( ogreWriter )
 
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            , mVisualScene(visualScene)
 
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                , mLibraryNodesList(libraryNodesList)
 
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        {
 
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        }
 
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    //------------------------------
 
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        SceneGraphWriter::~SceneGraphWriter()
 
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        {
 
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        }
 
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        //------------------------------
 
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        bool SceneGraphWriter::write(  )
 
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        {
 
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                createUniqueIdNodeMap();
 
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                NodeInfo nodeInfo( COLLADABU::Math::Matrix4::IDENTITY );
 
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                mNodeInfoStack.push( nodeInfo );
 
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                writeNodes( mVisualScene.getRootNodes());
 
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                return true;
 
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        }
 
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        //------------------------------
 
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        bool SceneGraphWriter::writeNodes( const COLLADAFW::NodePointerArray& nodesToWriter )
 
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        {
 
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                for ( size_t i = 0, count = nodesToWriter.getCount(); i < count; ++i)
 
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                {
 
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                        writeNode(nodesToWriter[i]);
 
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                }
 
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                return true;
 
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        }
 
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        //------------------------------
 
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        bool SceneGraphWriter::writeNode(const COLLADAFW::Node* nodeToWriter )
 
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        {
 
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                const NodeInfo& parentNodeInfo = mNodeInfoStack.top();
 
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                const COLLADABU::Math::Matrix4& parentWorldMatrix = parentNodeInfo.worldTransformation;
 
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                COLLADABU::Math::Matrix4 worldMatrix = parentWorldMatrix * nodeToWriter->getTransformationMatrix();
 
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                NodeInfo nodeInfo( worldMatrix );
 
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                mNodeInfoStack.push(nodeInfo);
 
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                writeNodes(nodeToWriter->getChildNodes());
 
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                storeInstanceGeometries( nodeToWriter->getInstanceGeometries(), worldMatrix);
 
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                writeInstanceNodes( nodeToWriter->getInstanceNodes() );
 
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                mNodeInfoStack.pop();
 
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                return true;
 
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        }
 
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        //------------------------------
 
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        void SceneGraphWriter::storeInstanceGeometries( const COLLADAFW::InstanceGeometryPointerArray& instanceGeometries, 
 
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                                                                                                        const COLLADABU::Math::Matrix4& worldMatrix  )
 
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        {
 
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                for ( size_t i = 0, count = instanceGeometries.getCount(); i < count; ++i)
 
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                {
 
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                        COLLADAFW::InstanceGeometry* instanceGeometry = instanceGeometries[i];
 
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                        OgreWriter::InstanceGeometryInfo instanceGeometryInfo( instanceGeometry, worldMatrix );
 
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                        addGeometryUniqueIdInstanceGeometryInfoPair(instanceGeometry->getInstanciatedObjectId(), instanceGeometryInfo);
 
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                }
 
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        }
 
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        //------------------------------
 
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        void SceneGraphWriter::writeInstanceNodes( const COLLADAFW::InstanceNodePointerArray& instanceNodes)
 
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        {
 
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                for ( size_t i = 0, count = instanceNodes.getCount(); i < count; ++i)
 
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                {
 
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                        const COLLADAFW::InstanceNode* instanceNode = instanceNodes[i];
 
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                        const COLLADAFW::UniqueId& referencedNodeUniqueId = instanceNode->getInstanciatedObjectId();
 
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                        UniqueIdNodeMap::const_iterator it = mUniqueIdNodeMap.find( referencedNodeUniqueId );
 
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                        if ( it != mUniqueIdNodeMap.end() )
 
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                        {
 
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                                const COLLADAFW::Node* referencedNode = it->second;
 
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                                writeNode( referencedNode );
 
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                        }
 
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                }
 
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        }
 
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        //------------------------------
 
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        void SceneGraphWriter::createUniqueIdNodeMap( COLLADAFW::Node* node )
 
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        {
 
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                mUniqueIdNodeMap[node->getUniqueId()] = node;
 
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                createUniqueIdNodeMap( node->getChildNodes() );
 
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        }
 
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        //------------------------------
 
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        void SceneGraphWriter::createUniqueIdNodeMap( const COLLADAFW::NodePointerArray& nodes )
 
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        {
 
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                for ( size_t i = 0, cout = nodes.getCount(); i < cout; ++i)
 
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                {
 
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                        COLLADAFW::Node* node = nodes[i];
 
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                        createUniqueIdNodeMap( node );
 
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                }
 
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        }
 
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        //------------------------------
 
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        void SceneGraphWriter::createUniqueIdNodeMap()
 
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        {
 
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                createUniqueIdNodeMap( mVisualScene.getRootNodes() );
 
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                OgreWriter::LibraryNodesList::const_iterator it = mLibraryNodesList.begin();
 
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                for ( ; it != mLibraryNodesList.end(); ++it )
 
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                {
 
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                        const COLLADAFW::LibraryNodes& libraryNodes = *it;
 
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                        createUniqueIdNodeMap( libraryNodes.getNodes() );
 
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                }
 
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        }
 
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} // namespace DAE2Ogre