# gdcmSwapper.h

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    00001 /*=========================================================================
    00002
    00003   Program: GDCM (Grassroots DICOM). A DICOM library
    00004   Module:  $URL$
    00005
    00006   Copyright (c) 2006-2009 Mathieu Malaterre
    00007   All rights reserved.
    00008   See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
    00009
    00010      This software is distributed WITHOUT ANY WARRANTY; without even
    00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    00012      PURPOSE.  See the above copyright notice for more information.
    00013
    00014 =========================================================================*/
    00015 #ifndef __gdcmSwapper_h
    00016 #define __gdcmSwapper_h
    00017
    00018 #include "gdcmSwapCode.h"
    00019
    00020 namespace gdcm
    00021 {
    00022
    00023
    00024 #ifdef GDCM_WORDS_BIGENDIAN
    00025 class SwapperDoOp
    00026 {
    00027 public:
    00028   template <typename T> static T Swap(T val) {return val;}
    00029   template <typename T> static void SwapArray(T *, unsigned int ) {}
    00030 };
    00031
    00032 class SwapperNoOp
    00033 {
    00034 public:
    00035   template <typename T> static T Swap(T val);
    00036   template <typename T>
    00037   static void SwapArray(T *array, unsigned int n)
    00038   {
    00039     // TODO: need to unroll loop:
    00040     for(unsigned int i = 0; i < n; ++i)
    00041     {
    00042       array[i] = Swap<T>(array[i]);
    00043     }
    00044   }
    00045 };
    00046 #else
    00047 class SwapperNoOp
    00048 {
    00049 public:
    00050   template <typename T> static T Swap(T val) {return val;}
    00051   template <typename T> static void SwapArray(T *, unsigned int ) {}
    00052 };
    00053
    00054 class SwapperDoOp
    00055 {
    00056 public:
    00057   template <typename T> static T Swap(T val);
    00058   template <typename T>
    00059   static void SwapArray(T *array, unsigned int n)
    00060   {
    00061     // TODO: need to unroll loop:
    00062     for(unsigned int i = 0; i < n; ++i)
    00063     {
    00064       array[i] = Swap<T>(array[i]);
    00065     }
    00066   }
    00067 };
    00068 #endif
    00069
    00070
    00071 } // end namespace gdcm
    00072
    00073 #include "gdcmSwapper.txx"
    00074
    00075 #endif //__gdcmSwapper_h