/usr/include/osg/Endian is in libopenscenegraph-dev 3.2.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_ENDIAN
#define OSG_ENDIAN 1
#include <algorithm>
namespace osg {
enum Endian
{
BigEndian,
LittleEndian
};
inline Endian getCpuByteOrder()
{
union {
char big_endian_1[2];
short is_it_really_1;
} u;
u.big_endian_1[0] = 0;
u.big_endian_1[1] = 1;
if (u.is_it_really_1 == 1)
return BigEndian;
else
return LittleEndian;
}
inline void swapBytes( char* in, unsigned int size )
{
char* start = in;
char* end = start+size-1;
while (start<end)
{
std::swap(*start++,*end--);
}
}
inline void swapBytes2( char* in )
{
std::swap(in[0],in[1]);
}
inline void swapBytes4( char* in )
{
std::swap(in[0],in[3]);
std::swap(in[1],in[2]);
}
inline void swapBytes8( char* in )
{
std::swap(in[0],in[7]);
std::swap(in[1],in[6]);
std::swap(in[2],in[5]);
std::swap(in[3],in[4]);
}
inline void swapBytes16( char* in )
{
std::swap(in[0],in[15]);
std::swap(in[1],in[14]);
std::swap(in[2],in[13]);
std::swap(in[3],in[12]);
std::swap(in[4],in[11]);
std::swap(in[5],in[10]);
std::swap(in[6],in[9]);
std::swap(in[7],in[8]);
}
template<typename T>
void swapBytes(T& t) { swapBytes(reinterpret_cast<char*>(&t), sizeof(T)); }
}
#endif
|