1 /*=========================================================================
4 Module: $RCSfile: gdcmBinEntry.cxx,v $
6 Date: $Date: 2005/01/23 10:12:32 $
7 Version: $Revision: 1.55 $
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 "gdcmDebug.h"
24 #include <iostream> // for std::ios_base, since <ios> does not exist on gcc/Solaris
29 //-----------------------------------------------------------------------------
30 // Constructor / Destructor
33 * \brief Constructor from a given BinEntry
35 BinEntry::BinEntry(DictEntry *e) : ValEntry(e)
42 * \brief Constructor from a given BinEntry
43 * @param e Pointer to existing Doc entry
45 BinEntry::BinEntry(DocEntry *e) : ValEntry(e->GetDictEntry())
49 BinArea = 0; // let's be carefull !
54 * \brief Canonical destructor.
58 if (BinArea && SelfArea)
61 BinArea = 0; // let's be carefull !
66 //-----------------------------------------------------------------------------
69 * \brief Prints a BinEntry (Dicom entry)
70 * @param os ostream we want to print in
71 * @param indent Indentation string to be prepended during printing
73 void BinEntry::Print(std::ostream &os, std::string const & )
78 void* binArea = GetBinArea();
81 //s << " [" << GDCM_BINLOADED
82 s << " [" << GetValue()
83 << "; length = " << GetLength() << "]";
87 if ( GetLength() == 0 )
93 //s << " [gdcm::Binary data NOT loaded]";
94 s << " [" <<GetValue() << "]";
101 * \brief canonical Writer
102 * @param fp already open file pointer
103 * @param filetype type of the file to be written
105 void BinEntry::WriteContent(std::ofstream *fp, FileType filetype)
107 #define BUFFER_SIZE 4096
108 DocEntry::WriteContent(fp, filetype);
109 void* binArea = GetBinArea();
110 int lgr = GetLength();
111 if (binArea) // the binArea was *actually* loaded
115 // Probabely, the same operation will have to be done when we want
116 // to write image with Big Endian Transfert Syntax,
117 // and we are working on Little Endian Processor
119 #ifdef GDCM_WORDS_BIGENDIAN
120 // Be carefull with *any* 16 bits words 'binEntries !'
121 // if ( GetVR() == "OW") // to be used later
123 // TODO FIXME Right now, we only care of Pixels element
125 // 8 Bits Pixels *are* OB, 16 Bits Pixels *are* OW
126 // -value forced while Reading process-
127 if (GetGroup() == 0x7fe0 && GetVR() == "OW")
129 uint16_t *currPosition = (uint16_t *)binArea;
131 // TODO FIXME : Maybe we should allocate somewhere a static buffer,
132 // in order not to have to alloc/delete for almost every BinEntry ...
133 uint16_t *buffer = new uint16_t[BUFFER_SIZE];
135 // how many BUFFER_SIZE long pieces in binArea ?
136 int nbPieces = lgr/BUFFER_SIZE/2; //(16 bits = 2 Bytes)
137 uint16_t *binArea16 = (uint16_t*)binArea;
138 for (int j=0;j<nbPieces;j++)
140 for (int i = 0; i < BUFFER_SIZE/2; i++)
142 buffer[i] = (binArea16[i] >> 8) | (binArea16[i] << 8);
144 fp->write ( (char*)currPosition, BUFFER_SIZE );
145 currPosition += BUFFER_SIZE/2;
147 int remainingSize = lgr%BUFFER_SIZE;
148 if ( remainingSize != 0)
150 fp->write ( (char*)currPosition, remainingSize );
156 // For any other VR, BinEntry is re-written as-is
157 fp->write ( (char*)binArea, lgr );
160 fp->write ( (char*)binArea, lgr ); // Elem value
161 #endif //GDCM_WORDS_BIGENDIAN
166 // nothing was loaded, but we need to skip space on disc
167 fp->seekp(lgr, std::ios::cur);
170 //-----------------------------------------------------------------------------
174 /// \brief Sets the value (non string) of the current Dicom Header Entry
175 void BinEntry::SetBinArea( uint8_t *area, bool self )
177 if (BinArea && SelfArea)
184 //-----------------------------------------------------------------------------
187 //-----------------------------------------------------------------------------
190 //-----------------------------------------------------------------------------
191 } // end namespace gdcm