1 /*=========================================================================
4 Module: $RCSfile: gdcmBinEntry.cxx,v $
6 Date: $Date: 2005/01/30 17:30:57 $
7 Version: $Revision: 1.59 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
19 #include "gdcmBinEntry.h"
20 #include "gdcmContentEntry.h"
22 #include "gdcmDebug.h"
26 #include <iostream> // for std::ios_base, since <ios> does not exist on gcc/Solaris
31 //-----------------------------------------------------------------------------
32 // Constructor / Destructor
35 * \brief Constructor from a given BinEntry
37 BinEntry::BinEntry(DictEntry *e) : ContentEntry(e)
44 * \brief Constructor from a given BinEntry
45 * @param e Pointer to existing Doc entry
47 BinEntry::BinEntry(DocEntry *e) : ContentEntry(e->GetDictEntry())
51 BinArea = 0; // let's be carefull !
56 * \brief Canonical destructor.
60 if (BinArea && SelfArea)
63 BinArea = 0; // let's be carefull !
67 //-----------------------------------------------------------------------------
70 * \brief Prints a BinEntry (Dicom entry)
71 * @param os ostream we want to print in
72 * @param indent Indentation string to be prepended during printing
74 void BinEntry::Print(std::ostream &os, std::string const & )
79 void* binArea = GetBinArea();
82 //s << " [" << GDCM_BINLOADED
83 s << " [" << GetValue()
84 << "; length = " << GetLength() << "]";
88 if ( GetLength() == 0 )
94 //s << " [gdcm::Binary data NOT loaded]";
95 s << " [" <<GetValue() << "]";
101 //-----------------------------------------------------------------------------
104 * \brief canonical Writer
105 * @param fp already open file pointer
106 * @param filetype type of the file (ACR, ImplicitVR, ExplicitVR, ...)
108 void BinEntry::WriteContent(std::ofstream *fp, FileType filetype)
110 #define BUFFER_SIZE 4096
111 DocEntry::WriteContent(fp, filetype);
112 void* binArea = GetBinArea();
113 int lgr = GetLength();
114 if (binArea) // the binArea was *actually* loaded
118 // Probabely, the same operation will have to be done when we want
119 // to write image with Big Endian Transfert Syntax,
120 // and we are working on Little Endian Processor
122 #ifdef GDCM_WORDS_BIGENDIAN
123 // Be carefull with *any* 16 bits words 'binEntries !'
124 // if ( GetVR() == "OW") // to be used later
126 // TODO FIXME Right now, we only care of Pixels element
128 // 8 Bits Pixels *are* OB, 16 Bits Pixels *are* OW
129 // -value forced while Reading process-
130 if (GetGroup() == 0x7fe0 && GetVR() == "OW")
132 uint16_t *currPosition = (uint16_t *)binArea;
134 // TODO FIXME : Maybe we should allocate somewhere a static buffer,
135 // in order not to have to alloc/delete for almost every BinEntry ...
136 uint16_t *buffer = new uint16_t[BUFFER_SIZE];
138 // how many BUFFER_SIZE long pieces in binArea ?
139 int nbPieces = lgr/BUFFER_SIZE/2; //(16 bits = 2 Bytes)
140 uint16_t *binArea16 = (uint16_t*)binArea;
141 for (int j=0;j<nbPieces;j++)
143 for (int i = 0; i < BUFFER_SIZE/2; i++)
145 buffer[i] = (binArea16[i] >> 8) | (binArea16[i] << 8);
147 fp->write ( (char*)currPosition, BUFFER_SIZE );
148 currPosition += BUFFER_SIZE/2;
150 int remainingSize = lgr%BUFFER_SIZE;
151 if ( remainingSize != 0)
153 fp->write ( (char*)currPosition, remainingSize );
159 // For any other VR, BinEntry is re-written as-is
160 fp->write ( (char*)binArea, lgr );
163 fp->write ( (char*)binArea, lgr ); // Elem value
164 #endif //GDCM_WORDS_BIGENDIAN
169 // nothing was loaded, but we need to skip space on disc
170 fp->seekp(lgr, std::ios::cur);
175 * \brief Sets the value (non string) of the current Dicom Header Entry
177 void BinEntry::SetBinArea( uint8_t *area, bool self )
179 if (BinArea && SelfArea)
186 //-----------------------------------------------------------------------------
189 //-----------------------------------------------------------------------------
192 //-----------------------------------------------------------------------------
193 } // end namespace gdcm