1 /*=========================================================================
4 Module: $RCSfile: gdcmBinEntry.cxx,v $
6 Date: $Date: 2005/01/16 04:50:41 $
7 Version: $Revision: 1.53 $
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())
48 /* Length = e->GetLength();
49 ReadLength = e->GetReadLength();
50 ImplicitVR = e->IsImplicitVR();
51 Offset = e->GetOffset();*/
54 //SQDepthLevel = e->GetDepthLevel();
56 BinArea = 0; // let's be carefull !
61 * \brief Canonical destructor.
65 if (BinArea && SelfArea)
68 BinArea = 0; // let's be carefull !
73 //-----------------------------------------------------------------------------
76 * \brief canonical Printer
79 void BinEntry::Print(std::ostream &os, std::string const & )
84 void* binArea = GetBinArea();
87 //s << " [" << GDCM_BINLOADED
88 s << " [" << GetValue()
89 << "; length = " << GetLength() << "]";
93 if ( GetLength() == 0 )
99 //s << " [gdcm::Binary data NOT loaded]";
100 s << " [" <<GetValue() << "]";
108 * \brief canonical Writer
109 * @param fp already open file pointer
110 * @param filetype type of the file to be written
112 void BinEntry::WriteContent(std::ofstream *fp, FileType filetype)
114 #define BUFFER_SIZE 4096
115 DocEntry::WriteContent(fp, filetype);
116 void* binArea = GetBinArea();
117 int lgr = GetLength();
118 if (binArea) // the binArea was *actually* loaded
122 // Probabely, the same operation will have to be done when we want
123 // to write image with Big Endian Transfert Syntax,
124 // and we are working onj Little Endian Processor
126 #ifdef GDCM_WORDS_BIGENDIAN
127 // Be carefull with *any* 16 bits words 'binEntries !'
128 // if ( GetVR() == "OW") // to be used later
130 // TODO FIXME Right now, we only care of Pixels element
132 // 8 Bits Pixels *are* OB, 16 Bits Pixels *are* OW
133 // -value forced while Reading process-
134 if (GetGroup() == 0x7fe0 && GetVR() == "OW")
136 uint16_t *currPosition = (uint16_t *)binArea;
138 // TODO FIXME : Maybe we should allocate somewhere a static buffer,
139 // in order not to have to alloc/delete for almost every BinEntry ...
140 uint16_t *buffer = new uint16_t[BUFFER_SIZE];
142 // how many BUFFER_SIZE long pieces in binArea ?
143 int nbPieces = lgr/BUFFER_SIZE/2; //(16 bits = 2 Bytes)
144 uint16_t *binArea16 = (uint16_t*)binArea;
145 for (int j=0;j<nbPieces;j++)
147 for (int i = 0; i < BUFFER_SIZE/2; i++)
149 buffer[i] = (binArea16[i] >> 8) | (binArea16[i] << 8);
151 fp->write ( (char*)currPosition, BUFFER_SIZE );
152 currPosition += BUFFER_SIZE/2;
154 int remainingSize = lgr%BUFFER_SIZE;
155 if ( remainingSize != 0)
157 fp->write ( (char*)currPosition, remainingSize );
163 // For any other VR, BinEntry is re-written as-is
164 fp->write ( (char*)binArea, lgr );
167 fp->write ( (char*)binArea, lgr ); // Elem value
168 #endif //GDCM_WORDS_BIGENDIAN
173 // nothing was loaded, but we need to skip space on disc
174 fp->seekp(lgr, std::ios::cur);
177 //-----------------------------------------------------------------------------
181 /// \brief Sets the value (non string) of the current Dicom Header Entry
182 void BinEntry::SetBinArea( uint8_t *area, bool self )
184 if (BinArea && SelfArea)
191 //-----------------------------------------------------------------------------
194 //-----------------------------------------------------------------------------
197 //-----------------------------------------------------------------------------
198 } // end namespace gdcm