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( shared_ptr<IStream> aStream, bool includeUVs = true ); 00051 ~ObjLoader(); 00052 00058 void load( TriMesh *destTriMesh, boost::tribool loadNormals = boost::logic::indeterminate, boost::tribool loadTexCoords = boost::logic::indeterminate, bool optimizeVertices = true ); 00063 void load( size_t groupIndex, TriMesh *destTriMesh, boost::tribool loadNormals = boost::logic::indeterminate, boost::tribool loadTexCoords = boost::logic::indeterminate, bool optimizeVertices = true ); 00064 00065 struct Face { 00066 int mNumVertices; 00067 std::vector<int> mVertexIndices; 00068 std::vector<int> mTexCoordIndices; 00069 std::vector<int> mNormalIndices; 00070 }; 00071 00072 struct Group { 00073 std::string mName; 00074 int mBaseVertexOffset, mBaseTexCoordOffset, mBaseNormalOffset; 00075 std::vector<Face> mFaces; 00076 bool mHasTexCoords; 00077 bool mHasNormals; 00078 }; 00079 00080 private: 00081 typedef boost::tuple<int,int> VertexPair; 00082 typedef boost::tuple<int,int,int> VertexTriple; 00083 00084 void parseFace( Group *group, const std::string &s, bool includeUVs ); 00085 void loadInternalNoOptimize( const Group &group, TriMesh *destTriMesh, bool texCoords, bool normals ); 00086 void loadInternalNormalsTextures( const Group &group, std::map<boost::tuple<int,int,int>,int> &uniqueVerts, TriMesh *destTriMesh ); 00087 void loadInternalNormals( const Group &group, std::map<boost::tuple<int,int>,int> &uniqueVerts, TriMesh *destTriMesh ); 00088 void loadInternalTextures( const Group &group, std::map<boost::tuple<int,int>,int> &uniqueVerts, TriMesh *destTriMesh ); 00089 void loadInternal( const Group &group, std::map<int,int> &uniqueVerts, TriMesh *destTriMesh ); 00090 00091 shared_ptr<IStream> mStream; 00092 std::vector<Vec3f> mVertices, mNormals; 00093 std::vector<Vec2f> mTexCoords; 00094 std::vector<Group> mGroups; 00095 }; 00096 00097 } // namespace cinder