Point Cloud Library (PCL)
1.7.0
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00001 /* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Point Cloud Library (PCL) - www.pointclouds.org 00005 * Copyright (c) 2007-2012, Ares Lagae 00006 * Copyright (c) 2012, Willow Garage, Inc. 00007 * All rights reserved. 00008 * 00009 * Redistribution and use in source and binary forms, with or without 00010 * modification, are permitted provided that the following conditions 00011 * are met: 00012 * 00013 * * Redistributions of source code must retain the above copyright 00014 * notice, this list of conditions and the following disclaimer. 00015 * * Redistributions in binary form must reproduce the above 00016 * copyright notice, this list of conditions and the following 00017 * disclaimer in the documentation and/or other materials provided 00018 * with the distribution. 00019 * * Neither the name of the copyright holder(s) nor the names of its 00020 * contributors may be used to endorse or promote products derived 00021 * from this software without specific prior written permission. 00022 * 00023 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00024 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00025 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00026 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00027 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00028 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00029 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00030 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00031 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00032 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00033 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00034 * POSSIBILITY OF SUCH DAMAGE. 00035 * 00036 * $Id$ 00037 * 00038 */ 00039 00040 #ifndef PCL_IO_PLY_BYTE_ORDER_H 00041 #define PCL_IO_PLY_BYTE_ORDER_H 00042 00043 #include <boost/detail/endian.hpp> 00044 00045 namespace pcl 00046 { 00047 namespace io 00048 { 00049 namespace ply 00050 { 00051 /** \file byte_order.h 00052 * defines byte shift operations and endianess. 00053 * \author Ares Lagae as part of libply, Nizar Sallem 00054 * \ingroup io 00055 */ 00056 00057 enum byte_order 00058 { 00059 little_endian_byte_order, 00060 big_endian_byte_order, 00061 #if defined(BOOST_BIG_ENDIAN) 00062 host_byte_order = big_endian_byte_order, 00063 #elif defined(BOOST_LITTLE_ENDIAN) 00064 host_byte_order = little_endian_byte_order, 00065 #else 00066 #error "unable to determine system endianness" 00067 #endif 00068 network_byte_order = big_endian_byte_order 00069 }; 00070 00071 template <std::size_t N> 00072 void swap_byte_order (char* bytes); 00073 00074 template <> 00075 inline void swap_byte_order<1> (char*) {} 00076 00077 template <> 00078 inline void swap_byte_order<2> (char* bytes) 00079 { 00080 std::swap (bytes[0], bytes[1]); 00081 } 00082 00083 template <> 00084 inline void swap_byte_order<4> (char* bytes) 00085 { 00086 std::swap (bytes[0], bytes[3]); 00087 std::swap (bytes[1], bytes[2]); 00088 } 00089 00090 template <> 00091 inline void swap_byte_order<8> (char* bytes) 00092 { 00093 std::swap (bytes[0], bytes[7]); 00094 std::swap (bytes[1], bytes[6]); 00095 std::swap (bytes[2], bytes[5]); 00096 std::swap (bytes[3], bytes[4]); 00097 } 00098 00099 template <typename T> 00100 void swap_byte_order (T& value) 00101 { 00102 swap_byte_order<sizeof (T)> (reinterpret_cast<char*> (&value)); 00103 } 00104 00105 } // namespace ply 00106 } // namespace io 00107 } // namespace pcl 00108 00109 #endif // PLY_BYTE_ORDER_H