/usr/include/gdcm-2.0/gdcmSwapper.txx is in libgdcm2-dev 2.0.18-7.
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 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef GDCMSWAPPER_TXX
#define GDCMSWAPPER_TXX
#ifdef GDCM_HAVE_BYTESWAP_H
// TODO: not cross platform...
#include <byteswap.h>
#endif
#include <stdlib.h>
#include "gdcmTag.h"
namespace gdcm
{
#ifdef GDCM_WORDS_BIGENDIAN
template <> inline uint16_t SwapperNoOp::Swap<uint16_t>(uint16_t val)
{
#ifdef GDCM_HAVE_BYTESWAP_H
return bswap_16(val);
#else
return (val>>8) | (val<<8);
#endif
}
template <> inline int16_t SwapperNoOp::Swap<int16_t>(int16_t val)
{
return Swap((uint16_t)val);
}
template <> inline uint32_t SwapperNoOp::Swap<uint32_t>(uint32_t val)
{
#ifdef GDCM_HAVE_BYTESWAP_H
return bswap_32(val);
#else
val= ((val<<8)&0xFF00FF00) | ((val>>8)&0x00FF00FF);
val= (val>>16) | (val<<16);
return val;
#endif
}
template <> inline int32_t SwapperNoOp::Swap<int32_t>(int32_t val)
{
return Swap((uint32_t)val);
}
template <> inline float SwapperNoOp::Swap<float>(float val)
{
return Swap((uint32_t)val);
}
template <> inline uint64_t SwapperNoOp::Swap<uint64_t>(uint64_t val)
{
#ifdef GDCM_HAVE_BYTESWAP_H
return bswap_64(val);
#else
val= ((val<< 8)&0xFF00FF00FF00FF00ULL) | ((val>> 8)&0x00FF00FF00FF00FFULL);
val= ((val<<16)&0xFFFF0000FFFF0000ULL) | ((val>>16)&0x0000FFFF0000FFFFULL);
return (val>>32) | (val<<32);
#endif
}
template <> inline int64_t SwapperNoOp::Swap<int64_t>(int64_t val)
{
return Swap((uint64_t)val);
}
template <> inline double SwapperNoOp::Swap<double>(double val)
{
return Swap((uint64_t)val);
}
template <> inline Tag SwapperNoOp::Swap<Tag>(Tag val)
{
return Tag( Swap(val.GetGroup()), Swap(val.GetElement()) );
}
template <> inline void SwapperNoOp::SwapArray(uint8_t *, unsigned int ) {}
template <> inline void SwapperNoOp::SwapArray(float *array, unsigned int n)
{
switch( sizeof(float) )
{
case 4:
SwapperNoOp::SwapArray<uint32_t>((uint32_t*)array,n);
break;
default:
assert(0);
}
}
template <> inline void SwapperNoOp::SwapArray(double *array, unsigned int n)
{
switch( sizeof(double) )
{
case 8:
SwapperNoOp::SwapArray<uint64_t>((uint64_t*)array,n);
break;
default:
assert(0);
}
}
#else
template <> inline uint16_t SwapperDoOp::Swap<uint16_t>(uint16_t val)
{
#ifdef GDCM_HAVE_BYTESWAP_H
return bswap_16(val);
#else
return (val>>8) | (val<<8);
#endif
}
template <> inline int16_t SwapperDoOp::Swap<int16_t>(int16_t val)
{
return Swap((uint16_t)val);
}
template <> inline uint32_t SwapperDoOp::Swap<uint32_t>(uint32_t val)
{
#ifdef GDCM_HAVE_BYTESWAP_H
return bswap_32(val);
#else
val= ((val<<8)&0xFF00FF00) | ((val>>8)&0x00FF00FF);
val= (val>>16) | (val<<16);
return val;
#endif
}
template <> inline int32_t SwapperDoOp::Swap<int32_t>(int32_t val)
{
return Swap((uint32_t)val);
}
template <> inline float SwapperDoOp::Swap<float>(float val)
{
return static_cast<float>(Swap((uint32_t)val));
}
template <> inline uint64_t SwapperDoOp::Swap<uint64_t>(uint64_t val)
{
#ifdef GDCM_HAVE_BYTESWAP_H
return bswap_64(val);
#else
val= ((val<< 8)&0xFF00FF00FF00FF00ULL) | ((val>> 8)&0x00FF00FF00FF00FFULL);
val= ((val<<16)&0xFFFF0000FFFF0000ULL) | ((val>>16)&0x0000FFFF0000FFFFULL);
return (val>>32) | (val<<32);
#endif
}
template <> inline int64_t SwapperDoOp::Swap<int64_t>(int64_t val)
{
return Swap((uint64_t)val);
}
template <> inline double SwapperDoOp::Swap<double>(double val)
{
return static_cast<double>(Swap((uint64_t)val));
}
template <> inline Tag SwapperDoOp::Swap<Tag>(Tag val)
{
return Tag( Swap((uint32_t)val.GetElementTag()) );
}
template <> inline void SwapperDoOp::SwapArray(uint8_t *, size_t ) {}
template <> inline void SwapperDoOp::SwapArray(float *array, size_t n)
{
switch( sizeof(float) )
{
case 4:
SwapperDoOp::SwapArray<uint32_t>((uint32_t*)array,n);
break;
default:
assert(0);
}
}
template <> inline void SwapperDoOp::SwapArray(double *array, size_t n)
{
switch( sizeof(double) )
{
case 8:
SwapperDoOp::SwapArray<uint64_t>((uint64_t*)array,n);
break;
default:
assert(0);
}
}
#endif
} // end namespace gdcm
#endif // GDCMSWAPPER_TXX
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