OpenMesh
OpenMesh/Core/IO/reader/PLYReader.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
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00006  *                                                                           *
00007  *---------------------------------------------------------------------------*
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00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
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00033 \*===========================================================================*/
00034 
00035 /*===========================================================================*\
00036  *                                                                           *
00037  *   $Revision: 463 $                                                         *
00038  *   $Date: 2011-11-25 16:08:38 +0100 (Fr, 25 Nov 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 
00043 //=============================================================================
00044 //
00045 //  Implements a reader module for OFF files
00046 //
00047 //=============================================================================
00048 
00049 
00050 #ifndef __PLYREADER_HH__
00051 #define __PLYREADER_HH__
00052 
00053 
00054 //=== INCLUDES ================================================================
00055 
00056 
00057 #include <iostream>
00058 #include <string>
00059 #include <stdio.h>
00060 #include <fstream>
00061 
00062 #include <OpenMesh/Core/System/config.h>
00063 #include <OpenMesh/Core/Utils/SingletonT.hh>
00064 #include <OpenMesh/Core/IO/reader/BaseReader.hh>
00065 
00066 #ifndef WIN32
00067 #include <string.h>
00068 #endif
00069 
00070 //== NAMESPACES ===============================================================
00071 
00072 
00073 namespace OpenMesh {
00074 namespace IO {
00075 
00076 
00077 //== FORWARDS =================================================================
00078 
00079 
00080 class BaseImporter;
00081 
00082 
00083 //== IMPLEMENTATION ===========================================================
00084 
00085 
00092 class _PLYReader_ : public BaseReader
00093 {
00094 public:
00095 
00096   _PLYReader_();
00097 
00098   std::string get_description() const { return "PLY polygon file format"; }
00099   std::string get_extensions()  const { return "ply"; }
00100   std::string get_magic()       const { return "PLY"; }
00101 
00102   bool read(const std::string& _filename,
00103         BaseImporter& _bi,
00104         Options& _opt);
00105 
00106   bool read(std::istream& _is,
00107             BaseImporter& _bi,
00108             Options& _opt);
00109 
00110   bool can_u_read(const std::string& _filename) const;
00111 
00112   enum ValueType {
00113     Unsupported,
00114     ValueTypeINT8, ValueTypeCHAR,
00115     ValueTypeUINT8, ValueTypeUCHAR,
00116     ValueTypeINT16, ValueTypeSHORT,
00117     ValueTypeUINT16, ValueTypeUSHORT,
00118     ValueTypeINT32, ValueTypeINT,
00119     ValueTypeUINT32, ValueTypeUINT,
00120     ValueTypeFLOAT32, ValueTypeFLOAT,
00121     ValueTypeFLOAT64, ValueTypeDOUBLE
00122   };
00123 
00124 private:
00125 
00126   bool can_u_read(std::istream& _is) const;
00127 
00128   bool read_ascii(std::istream& _in, BaseImporter& _bi) const;
00129   bool read_binary(std::istream& _in, BaseImporter& _bi, bool swap) const;
00130 
00131   float readToFloatValue(ValueType _type , std::fstream& _in) const;
00132 
00133   void readValue(ValueType _type , std::istream& _in, float& _value) const;
00134   void readValue(ValueType _type, std::istream& _in, double& _value) const;
00135   void readValue(ValueType _type , std::istream& _in, unsigned int& _value) const;
00136   void readValue(ValueType _type , std::istream& _in, int& _value) const;
00137 
00138   void readInteger(ValueType _type, std::istream& _in, int& _value) const;
00139   void readInteger(ValueType _type, std::istream& _in, unsigned int& _value) const;
00140 
00142   void consume_input(std::istream& _in, int _count) const {
00143           _in.read(reinterpret_cast<char*>(&buff[0]), _count);
00144   }
00145 
00146   mutable unsigned char buff[8];
00147 
00149   mutable Options options_;
00150 
00152   mutable Options userOptions_;
00153 
00154   mutable unsigned int vertexCount_;
00155   mutable unsigned int faceCount_;
00156 
00157   mutable ValueType vertexType_;
00158   mutable uint vertexDimension_;
00159 
00160   mutable ValueType faceIndexType_;
00161   mutable ValueType faceEntryType_;
00162 
00163   enum VertexProperty {
00164     XCOORD,YCOORD,ZCOORD,
00165     TEXX,TEXY,
00166     COLORRED,COLORGREEN,COLORBLUE,COLORALPHA,
00167     XNORM,YNORM,ZNORM,
00168     UNSUPPORTED
00169   };
00170 
00172   mutable std::map<ValueType, int> scalar_size_;
00173 
00174   // Number of vertex properties
00175   mutable unsigned int vertexPropertyCount_;
00176   mutable std::map< int , std::pair< VertexProperty, ValueType> > vertexPropertyMap_;
00177 
00178 };
00179 
00180 
00181 //== TYPE DEFINITION ==========================================================
00182 
00183 
00185 extern _PLYReader_  __PLYReaderInstance;
00186 _PLYReader_&  PLYReader();
00187 
00188 
00189 //=============================================================================
00190 } // namespace IO
00191 } // namespace OpenMesh
00192 //=============================================================================
00193 #endif
00194 //=============================================================================