X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmDataEntry.cxx;h=1d8ade9fe3db1dc53094fa0f921db178f2c3e6fd;hb=fafcabd41c8bd44143874bb4f4ef267e9a718864;hp=9930924a3e3e064881454cfa17101c729bca7199;hpb=3572eb0f563e17bc055c906d72ea33efd970ce86;p=gdcm.git diff --git a/src/gdcmDataEntry.cxx b/src/gdcmDataEntry.cxx index 9930924a..1d8ade9f 100644 --- a/src/gdcmDataEntry.cxx +++ b/src/gdcmDataEntry.cxx @@ -3,8 +3,8 @@ Program: gdcm Module: $RCSfile: gdcmDataEntry.cxx,v $ Language: C++ - Date: $Date: 2005/10/27 17:07:24 $ - Version: $Revision: 1.14 $ + Date: $Date: 2006/01/20 09:17:25 $ + Version: $Revision: 1.28 $ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de l'Image). All rights reserved. See Doc/License.txt or @@ -75,7 +75,9 @@ DataEntry::~DataEntry () //----------------------------------------------------------------------------- // Public /** - * \brief Sets the value (non string) of the current Dicom Header Entry + * \brief Sets the value (non string) of the current DataEntry + * @param area area + * @param self self */ void DataEntry::SetBinArea( uint8_t *area, bool self ) { @@ -87,7 +89,9 @@ void DataEntry::SetBinArea( uint8_t *area, bool self ) State = STATE_LOADED; } /** - * \brief Inserts the value (non string) into the current Dicom Header Entry + * \brief Inserts the value (non string) into the current DataEntry + * @param area area + * @param length length */ void DataEntry::CopyBinArea( uint8_t *area, uint32_t length ) { @@ -107,6 +111,11 @@ void DataEntry::CopyBinArea( uint8_t *area, uint32_t length ) } } +/** + * \brief Inserts the elementary (non string) value into the current DataEntry + * @param id index of the elementary value to be set + * @param val value, passed as a double + */ void DataEntry::SetValue(const uint32_t &id, const double &val) { if( !BinArea ) @@ -151,9 +160,10 @@ void DataEntry::SetValue(const uint32_t &id, const double &val) } /** * \brief returns, as a double (?!?) one of the values - // (when entry is multivaluated), identified by its index. - // Returns 0.0 if index is wrong - // FIXME : warn the user there was a problem ! + * (when entry is multivaluated), identified by its index. + * Returns 0.0 if index is wrong + * FIXME : warn the user there was a problem ! + * @param id id */ double DataEntry::GetValue(const uint32_t &id) const { @@ -234,17 +244,19 @@ double DataEntry::GetValue(const uint32_t &id) const */ bool DataEntry::IsValueCountValid() const { - bool valid; uint32_t vm; const std::string &strVM = GetVM(); uint32_t vc = GetValueCount(); + bool valid = vc == 0; + if( valid ) + return true; // FIXME : what shall we do with VM = "2-n", "3-n", etc if( strVM == "1-n" ) { - // make sure it is at least one ??? FIXME - valid = vc >= 1 || vc == 0; + // make sure there is at least one ??? FIXME + valid = vc >= 1; } else { @@ -252,7 +264,7 @@ bool DataEntry::IsValueCountValid() const os.str( strVM ); os >> vm; // Two cases: - // vm respect the one from the dict + // vm respects the one from the dict // vm is 0 (we need to check if this element is allowed to be empty) FIXME // note (JPR) @@ -269,7 +281,7 @@ bool DataEntry::IsValueCountValid() const // Problem : entry type may depend on the modality and/or the Sequence // it's embedded in ! // (Get the information in the 'Conformance Statements' ...) - valid = vc == vm || vc == 0; + valid = vc == vm; } return valid; } @@ -284,14 +296,15 @@ uint32_t DataEntry::GetValueCount( ) const return GetLength()/sizeof(uint16_t); else if( vr == "UL" || vr == "SL" ) return GetLength()/sizeof(uint32_t); - else if( vr == "FL" ) - return GetLength()/sizeof(float); + else if( vr == "FL" || vr == "OF" ) + return GetLength()/4 ; // FL has a *4* length! sizeof(float); else if( vr == "FD" ) - return GetLength()/sizeof(double); + return GetLength()/8; // FD has a *8* length! sizeof(double); else if( Global::GetVR()->IsVROfStringRepresentable(vr) ) { // Some element in DICOM are allowed to be empty - if( !GetLength() ) return 0; + if( !GetLength() ) + return 0; // Don't use std::string to accelerate processing uint32_t count = 1; for(uint32_t i=0;i 0 ) { - // FIXME : should be quicker if we don't create one more std::string - // just to make even the length of a char array ... - - /* - std::string finalVal = Util::DicomString( value.c_str() ); - SetLength(finalVal.size()); - NewBinArea(); - - memcpy(BinArea, &(finalVal[0]), finalVal.size()); - */ - size_t l = value.size(); SetLength(l + l%2); NewBinArea(); - //memcpy(BinArea, &(value[0]), l); memcpy(BinArea, value.c_str(), l); if (l%2) BinArea[l] = '\0'; @@ -454,13 +454,19 @@ std::string const &DataEntry::GetString() const StrArea=s.str(); } else + { StrArea.append((const char *)BinArea,GetLength()); - + // to avoid gdcm propagate oddities in lengthes + if ( GetLength()%2) + StrArea.append(" ",1); + } return StrArea; } + /** - * \brief Copies all the attributes from an other DocEntry + * \brief Copies all the attributes from an other DocEntry * @param doc entry to copy from + * @remarks The content BinArea is copied too */ void DataEntry::Copy(DocEntry *doc) { @@ -474,8 +480,9 @@ void DataEntry::Copy(DocEntry *doc) CopyBinArea(entry->BinArea,entry->GetLength()); } } + /** - * \brief Writes the value of a DataEntry + * \brief Writes the 'value' area of a DataEntry * @param fp already open ofstream pointer * @param filetype type of the file (ACR, ImplicitVR, ExplicitVR, ...) */ @@ -488,11 +495,11 @@ void DataEntry::WriteContent(std::ofstream *fp, FileType filetype) return; //delimitors have NO value } - // --> We only deal with Little Endian writting + // --> We only deal with Little Endian writting. // --> forget Big Endian Transfer Syntax writting! // Next DICOM version will give it up ... - // WARNING - Implicit VR private element : + // WARNING - For Implicit VR private element, // we have *no choice* but considering them as // something like 'OB' values. // we rewrite them as we found them on disc. @@ -502,13 +509,16 @@ void DataEntry::WriteContent(std::ofstream *fp, FileType filetype) // on Little endian based processor // and, later on, somebody needs // this 'OW' Implicit VR private element (?!?) + // (Same stuff, mutatis mutandis, for Little/Big) - - // 8/16 bits Pixels problem should be solve automatiquely, - // since we ensure the VR is conform to Pixel size. + // 8/16 bits Pixels problem should be solved automatiquely, + // since we ensure the VR (OB vs OW) is conform to Pixel size. uint8_t *data = BinArea; //safe notation size_t l = GetLength(); + gdcmDebugMacro("in DataEntry::WriteContent " << GetKey() << " AtomicLength: " + << Global::GetVR()->GetAtomicElementLength(this->GetVR() ) // << " BinArea in :" << &BinArea + ); if (BinArea) // the binArea was *actually* loaded { #if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION) @@ -551,26 +561,43 @@ void DataEntry::WriteContent(std::ofstream *fp, FileType filetype) } else { - // nothing was loaded, but we need to skip space on disc - + // nothing was loaded, but we need to skip space on disc + if (l != 0) + { // --> WARNING : nothing is written; // --> the initial data (on the the source image) is lost - // --> user is *not* informed ! - - fp->seekp(l, std::ios::cur); + // --> user is *not* informed ! + gdcmDebugMacro ("Nothing was loaded, but we need to skip space on disc. " + << "Length =" << l << " for " << GetKey() ); + fp->seekp(l, std::ios::cur); + } } + // to avoid gdcm to propagate oddities + // (length was already modified) + if (l%2) + fp->seekp(1, std::ios::cur); +} + +/** + * \brief Compute the full length of the elementary DataEntry (not only value + * length) depending on the VR. + */ +uint32_t DataEntry::ComputeFullLength() +{ + return GetFullLength(); } //----------------------------------------------------------------------------- // Protected -void DataEntry::NewBinArea(void) +/// \brief Creates a DataEntry owned BinArea (remove previous one if any) +void DataEntry::NewBinArea( ) { DeleteBinArea(); if( GetLength() > 0 ) BinArea = new uint8_t[GetLength()]; SelfArea = true; } - +/// \brief Removes the BinArea, if owned by the DataEntry void DataEntry::DeleteBinArea(void) { if (BinArea && SelfArea)