1 /*=========================================================================
4 Module: $RCSfile: gdcmBinEntry.cxx,v $
6 Date: $Date: 2005/01/28 15:10:56 $
7 Version: $Revision: 1.58 $
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 !
68 //-----------------------------------------------------------------------------
71 * \brief Prints a BinEntry (Dicom entry)
72 * @param os ostream we want to print in
73 * @param indent Indentation string to be prepended during printing
75 void BinEntry::Print(std::ostream &os, std::string const & )
80 void* binArea = GetBinArea();
83 //s << " [" << GDCM_BINLOADED
84 s << " [" << GetValue()
85 << "; length = " << GetLength() << "]";
89 if ( GetLength() == 0 )
95 //s << " [gdcm::Binary data NOT loaded]";
96 s << " [" <<GetValue() << "]";
102 //-----------------------------------------------------------------------------
105 * \brief canonical Writer
106 * @param fp already open file pointer
107 * @param filetype type of the file (ACR, ImplicitVR, ExplicitVR, ...)
109 void BinEntry::WriteContent(std::ofstream *fp, FileType filetype)
111 #define BUFFER_SIZE 4096
112 DocEntry::WriteContent(fp, filetype);
113 void* binArea = GetBinArea();
114 int lgr = GetLength();
115 if (binArea) // the binArea was *actually* loaded
119 // Probabely, the same operation will have to be done when we want
120 // to write image with Big Endian Transfert Syntax,
121 // and we are working on Little Endian Processor
123 #ifdef GDCM_WORDS_BIGENDIAN
124 // Be carefull with *any* 16 bits words 'binEntries !'
125 // if ( GetVR() == "OW") // to be used later
127 // TODO FIXME Right now, we only care of Pixels element
129 // 8 Bits Pixels *are* OB, 16 Bits Pixels *are* OW
130 // -value forced while Reading process-
131 if (GetGroup() == 0x7fe0 && GetVR() == "OW")
133 uint16_t *currPosition = (uint16_t *)binArea;
135 // TODO FIXME : Maybe we should allocate somewhere a static buffer,
136 // in order not to have to alloc/delete for almost every BinEntry ...
137 uint16_t *buffer = new uint16_t[BUFFER_SIZE];
139 // how many BUFFER_SIZE long pieces in binArea ?
140 int nbPieces = lgr/BUFFER_SIZE/2; //(16 bits = 2 Bytes)
141 uint16_t *binArea16 = (uint16_t*)binArea;
142 for (int j=0;j<nbPieces;j++)
144 for (int i = 0; i < BUFFER_SIZE/2; i++)
146 buffer[i] = (binArea16[i] >> 8) | (binArea16[i] << 8);
148 fp->write ( (char*)currPosition, BUFFER_SIZE );
149 currPosition += BUFFER_SIZE/2;
151 int remainingSize = lgr%BUFFER_SIZE;
152 if ( remainingSize != 0)
154 fp->write ( (char*)currPosition, remainingSize );
160 // For any other VR, BinEntry is re-written as-is
161 fp->write ( (char*)binArea, lgr );
164 fp->write ( (char*)binArea, lgr ); // Elem value
165 #endif //GDCM_WORDS_BIGENDIAN
170 // nothing was loaded, but we need to skip space on disc
171 fp->seekp(lgr, std::ios::cur);
176 * \brief Sets the value (non string) of the current Dicom Header Entry
178 void BinEntry::SetBinArea( uint8_t *area, bool self )
180 if (BinArea && SelfArea)
187 //-----------------------------------------------------------------------------
190 //-----------------------------------------------------------------------------
193 //-----------------------------------------------------------------------------
194 } // end namespace gdcm