First checkin for OpenMesh 2.0

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597

Core/IO/reader/PLYReader.hh

@@ -0,0 +1,154 @@
+/*===========================================================================*\
+ *                                                                           *
+ *                               OpenMesh                                    *
+ *        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen         *
+ *                           www.openmesh.org                                *
+ *                                                                           *
+ *---------------------------------------------------------------------------*
+ *                                                                           *
+ *                                License                                    *
+ *                                                                           *
+ *  This library 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, version 2.1.                            *
+ *                                                                           *
+ *  This library 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 library; if not, write to the Free Software      *
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
+ *                                                                           *
+\*===========================================================================*/
+
+
+//=============================================================================
+//
+//  Implements a reader module for OFF files
+//
+//=============================================================================
+
+
+#ifndef __PLYREADER_HH__
+#define __PLYREADER_HH__
+
+
+//=== INCLUDES ================================================================
+
+
+#include <iostream>
+#include <string>
+#include <stdio.h>
+#include <fstream>
+
+#include <OpenMesh/Core/System/config.h>
+#include <OpenMesh/Core/Utils/SingletonT.hh>
+#include <OpenMesh/Core/IO/reader/BaseReader.hh>
+
+#ifndef WIN32
+#include <string.h>
+#endif
+
+//== NAMESPACES ===============================================================
+
+
+namespace OpenMesh {
+namespace IO {
+
+
+//== FORWARDS =================================================================
+
+
+class BaseImporter;
+
+
+//== IMPLEMENTATION ===========================================================
+
+
+/**
+    Implementation of the PLY format reader. This class is singleton'ed by
+    SingletonT to OFFReader.
+
+*/
+
+class _PLYReader_ : public BaseReader
+{
+public:
+
+  _PLYReader_();
+
+  std::string get_description() const { return "PLY polygon file format"; }
+  std::string get_extensions()  const { return "ply"; }
+  std::string get_magic()       const { return "PLY"; }
+
+  bool read(const std::string& _filename,
+	    BaseImporter& _bi,
+	    Options& _opt);
+
+  bool can_u_read(const std::string& _filename) const;
+
+  enum ValueType {
+    Unsupported ,
+    ValueTypeFLOAT32, ValueTypeFLOAT,
+    ValueTypeUINT8, ValueTypeINT32, ValueTypeINT ,
+    ValueTypeUCHAR
+  };
+
+private:
+
+  bool can_u_read(std::istream& _is) const;
+
+  bool read(std::fstream& _in, BaseImporter& _bi, Options& _opt ) const;
+  bool read_ascii(std::fstream& _in, BaseImporter& _bi) const;
+  bool read_binary(std::fstream& _in, BaseImporter& _bi, bool swap) const;
+
+  float readToFloatValue(ValueType _type , std::fstream& _in) const;
+
+  void readValue(ValueType _type , std::fstream& _in, float& _value) const;
+  void readValue(ValueType _type , std::fstream& _in, unsigned int& _value) const;
+  void readValue(ValueType _type , std::fstream& _in, int& _value) const;
+
+  //available options for reading
+  mutable Options options_;
+  //options that the user wants to read
+  mutable Options userOptions_;
+
+  mutable unsigned int vertexCount_;
+  mutable unsigned int faceCount_;
+
+  mutable ValueType vertexType_;
+  mutable uint vertexDimension_;
+
+  mutable ValueType faceIndexType_;
+  mutable ValueType faceEntryType_;
+
+  enum VertexProperty {
+    XCOORD,YCOORD,ZCOORD,
+    TEXX,TEXY,
+    COLORRED,COLORGREEN,COLORBLUE,COLORALPHA
+  };
+
+
+  // number of vertex properties
+  mutable unsigned int vertexPropertyCount_;
+  mutable std::map< int , std::pair< VertexProperty, ValueType> > vertexPropertyMap_;
+
+};
+
+
+//== TYPE DEFINITION ==========================================================
+
+
+/// Declare the single entity of the PLY reader
+extern _PLYReader_  __PLYReaderInstance;
+_PLYReader_&  PLYReader();
+
+
+//=============================================================================
+} // namespace IO
+} // namespace OpenMesh
+//=============================================================================
+#endif
+//=============================================================================