174 lines
6.8 KiB
C++
174 lines
6.8 KiB
C++
/* ========================================================================= *
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* *
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* OpenMesh *
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* Copyright (c) 2001-2015, RWTH-Aachen University *
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* Department of Computer Graphics and Multimedia *
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* All rights reserved. *
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* www.openmesh.org *
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* *
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*---------------------------------------------------------------------------*
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* This file is part of OpenMesh. *
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*---------------------------------------------------------------------------*
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* *
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* Redistribution and use in source and binary forms, with or without *
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* modification, are permitted provided that the following conditions *
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* are met: *
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* *
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* 1. Redistributions of source code must retain the above copyright notice, *
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* this list of conditions and the following disclaimer. *
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* *
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* 2. Redistributions in binary form must reproduce the above copyright *
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* notice, this list of conditions and the following disclaimer in the *
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* documentation and/or other materials provided with the distribution. *
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* *
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* 3. Neither the name of the copyright holder nor the names of its *
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* contributors may be used to endorse or promote products derived from *
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* this software without specific prior written permission. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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* *
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* ========================================================================= */
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//=============================================================================
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//
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// Implements a reader module for OFF files
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//
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//=============================================================================
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#ifndef __OMREADER_HH__
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#define __OMREADER_HH__
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//=== INCLUDES ================================================================
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// OpenMesh
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#include <OpenMesh/Core/System/config.h>
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#include <OpenMesh/Core/Utils/SingletonT.hh>
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#include <OpenMesh/Core/IO/OMFormat.hh>
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#include <OpenMesh/Core/IO/IOManager.hh>
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#include <OpenMesh/Core/IO/importer/BaseImporter.hh>
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#include <OpenMesh/Core/IO/reader/BaseReader.hh>
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// STD C++
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#include <iosfwd>
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#include <string>
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//== NAMESPACES ===============================================================
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namespace OpenMesh {
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namespace IO {
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//== IMPLEMENTATION ===========================================================
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/**
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Implementation of the OM format reader. This class is singleton'ed by
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SingletonT to OMReader.
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*/
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class OPENMESHDLLEXPORT _OMReader_ : public BaseReader
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{
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public:
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_OMReader_();
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virtual ~_OMReader_() { }
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std::string get_description() const override { return "OpenMesh File Format"; }
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std::string get_extensions() const override { return "om"; }
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std::string get_magic() const override { return "OM"; }
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bool read(const std::string& _filename,
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BaseImporter& _bi,
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Options& _opt ) override;
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//! Stream Reader for std::istream input in binary format
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bool read(std::istream& _is,
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BaseImporter& _bi,
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Options& _opt ) override;
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virtual bool can_u_read(const std::string& _filename) const override;
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virtual bool can_u_read(std::istream& _is) const;
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private:
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bool supports( const OMFormat::uint8 version ) const;
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bool read_ascii(std::istream& _is, BaseImporter& _bi, Options& _opt) const;
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bool read_binary(std::istream& _is, BaseImporter& _bi, Options& _opt) const;
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typedef OMFormat::Header Header;
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typedef OMFormat::Chunk::Header ChunkHeader;
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typedef OMFormat::Chunk::PropertyName PropertyName;
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// initialized/updated by read_binary*/read_ascii*
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mutable size_t bytes_;
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mutable Options fileOptions_;
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mutable Header header_;
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mutable ChunkHeader chunk_header_;
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mutable PropertyName property_name_;
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bool read_binary_vertex_chunk( std::istream &_is,
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BaseImporter &_bi,
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Options &_opt,
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bool _swap) const;
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bool read_binary_face_chunk( std::istream &_is,
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BaseImporter &_bi,
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Options &_opt,
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bool _swap) const;
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bool read_binary_edge_chunk( std::istream &_is,
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BaseImporter &_bi,
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Options &_opt,
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bool _swap) const;
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bool read_binary_halfedge_chunk( std::istream &_is,
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BaseImporter &_bi,
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Options &_opt,
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bool _swap) const;
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bool read_binary_mesh_chunk( std::istream &_is,
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BaseImporter &_bi,
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Options &_opt,
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bool _swap) const;
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size_t restore_binary_custom_data( std::istream& _is,
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BaseProperty* _bp,
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size_t _n_elem,
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bool _swap) const;
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};
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//== TYPE DEFINITION ==========================================================
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/// Declare the single entity of the OM reader.
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extern _OMReader_ __OMReaderInstance;
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OPENMESHDLLEXPORT _OMReader_& OMReader();
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//=============================================================================
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} // namespace IO
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} // namespace OpenMesh
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//=============================================================================
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#endif
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//=============================================================================
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