00001 /* 00002 Copyright (c) 2010, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/TriMesh.h" 00026 #include "cinder/Stream.h" 00027 00028 #include <boost/logic/tribool.hpp> 00029 #include <boost/tuple/tuple_comparison.hpp> 00030 #include <map> 00031 00032 namespace cinder { 00033 00045 class ObjLoader { 00046 public: 00050 ObjLoader( std::shared_ptr<IStream> aStream, bool includeUVs = true ); 00054 ObjLoader( DataSourceRef dataSource, bool includeUVs = true ); 00055 ~ObjLoader(); 00056 00062 void load( TriMesh *destTriMesh, boost::tribool loadNormals = boost::logic::indeterminate, boost::tribool loadTexCoords = boost::logic::indeterminate, bool optimizeVertices = true ); 00067 void load( size_t groupIndex, TriMesh *destTriMesh, boost::tribool loadNormals = boost::logic::indeterminate, boost::tribool loadTexCoords = boost::logic::indeterminate, bool optimizeVertices = true ); 00068 00069 struct Face { 00070 int mNumVertices; 00071 std::vector<int> mVertexIndices; 00072 std::vector<int> mTexCoordIndices; 00073 std::vector<int> mNormalIndices; 00074 }; 00075 00076 struct Group { 00077 std::string mName; 00078 int mBaseVertexOffset, mBaseTexCoordOffset, mBaseNormalOffset; 00079 std::vector<Face> mFaces; 00080 bool mHasTexCoords; 00081 bool mHasNormals; 00082 }; 00083 00085 static void write( DataTargetRef dataTarget, const TriMesh &mesh, bool writeNormals = true, bool writeUVs = true ); 00086 00087 private: 00088 typedef boost::tuple<int,int> VertexPair; 00089 typedef boost::tuple<int,int,int> VertexTriple; 00090 00091 void parse( bool includeUVs ); 00092 00093 void parseFace( Group *group, const std::string &s, bool includeUVs ); 00094 void loadInternalNoOptimize( const Group &group, TriMesh *destTriMesh, bool texCoords, bool normals ); 00095 void loadInternalNormalsTextures( const Group &group, std::map<boost::tuple<int,int,int>,int> &uniqueVerts, TriMesh *destTriMesh ); 00096 void loadInternalNormals( const Group &group, std::map<boost::tuple<int,int>,int> &uniqueVerts, TriMesh *destTriMesh ); 00097 void loadInternalTextures( const Group &group, std::map<boost::tuple<int,int>,int> &uniqueVerts, TriMesh *destTriMesh ); 00098 void loadInternal( const Group &group, std::map<int,int> &uniqueVerts, TriMesh *destTriMesh ); 00099 00100 std::shared_ptr<IStream> mStream; 00101 std::vector<Vec3f> mVertices, mNormals; 00102 std::vector<Vec2f> mTexCoords; 00103 std::vector<Group> mGroups; 00104 }; 00105 00106 } // namespace cinder