X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmTS.cxx;h=d61ca287af2c98a8cc75b151a264f431e12bcda9;hb=5887c4beef24959af83e43efad0bb86acac9339e;hp=15645c5f4b8b5bde2e61db8ca065c5999b83fe2f;hpb=79a0d5df2d3f7ed7a295d76c3ae1048358bc019a;p=gdcm.git diff --git a/src/gdcmTS.cxx b/src/gdcmTS.cxx index 15645c5f..d61ca287 100644 --- a/src/gdcmTS.cxx +++ b/src/gdcmTS.cxx @@ -3,8 +3,8 @@ Program: gdcm Module: $RCSfile: gdcmTS.cxx,v $ Language: C++ - Date: $Date: 2004/10/27 01:32:15 $ - Version: $Revision: 1.27 $ + Date: $Date: 2005/01/11 23:16:47 $ + Version: $Revision: 1.36 $ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de l'Image). All rights reserved. See Doc/License.txt or @@ -25,31 +25,80 @@ #include #include +// TODO +// a lot of troubles expected with TS : 1.2.840.113619.5.2 +// Implicit VR - Big Endian +// see : http://www.gemedicalsystemseurope.com/euen/it_solutions/pdf/lsqxi_rev2.pdf +// + namespace gdcm { //----------------------------------------------------------------------------- +static const char *SpecialStrings[] = { + // Implicit VR Little Endian + "1.2.840.10008.1.2", + // Implicit VR Big Endian DLX (G.E Private) + "1.2.840.113619.5.2", + // Explicit VR Little Endian + "1.2.840.10008.1.2.1", + // Deflated Explicit VR Little Endian + "1.2.840.10008.1.2.1.99", + // Explicit VR Big Endian + "1.2.840.10008.1.2.2", + // JPEG Baseline (Process 1) + "1.2.840.10008.1.2.4.50", + // JPEG Extended (Process 2 & 4) + "1.2.840.10008.1.2.4.51", + // JPEG Extended (Process 3 & 5) + "1.2.840.10008.1.2.4.52", + // JPEG Spectral Selection, Non-Hierarchical (Process 6 & 8) + "1.2.840.10008.1.2.4.53", + // JPEG Full Progression, Non-Hierarchical (Process 10 & 12) + "1.2.840.10008.1.2.4.55", + // JPEG Lossless, Non-Hierarchical (Process 14) + "1.2.840.10008.1.2.4.57", + // JPEG Lossless, Hierarchical, First-Order Prediction (Process 14, [Selection Value 1]) + "1.2.840.10008.1.2.4.70", + // JPEG 2000 Lossless + "1.2.840.10008.1.2.4.90", + // JPEG 2000 + "1.2.840.10008.1.2.4.91", + // RLE Lossless + "1.2.840.10008.1.2.5", + // Unknown + "Unknown Transfer Syntax" +}; + +void FillDefaultTSDict(TSHT &ts); +//----------------------------------------------------------------------------- // Constructor / Destructor TS::TS() { std::string filename = DictSet::BuildDictPath() + DICT_TS; std::ifstream from(filename.c_str()); - dbg.Error(!from, "TS::TS: can't open dictionary", filename.c_str()); - - TSKey key; - TSAtr name; - - while (!from.eof()) + if( !from ) { - from >> key; - from >> std::ws; - std::getline(from, name); + gdcmVerboseMacro("Can't open dictionary" << filename.c_str()); + FillDefaultTSDict( TsMap ); + } + else + { + TSKey key; + TSAtr name; - if(key != "") + while (!from.eof()) { - TsMap[key] = name; + from >> key; + from >> std::ws; + std::getline(from, name); + + if(key != "") + { + TsMap[key] = name; + } } + from.close(); } - from.close(); } //----------------------------------------------------------------------------- @@ -78,14 +127,21 @@ void TS::Print(std::ostream &os) //----------------------------------------------------------------------------- // Public -int TS::Count(TSKey const & key) +int TS::Count(TSKey const &key) { return TsMap.count(key); } -TSAtr const & TS::GetValue(TSKey const & key) +TSAtr const & TS::GetValue(TSKey const &key) { - TSHT::const_iterator it = TsMap.find(key); + // First thing clean up the string sometime the transfer syntax is padded with spaces + std::string copy = key; + while ( copy.size() && !isdigit((unsigned char)copy[copy.size()-1]) ) + { + copy.erase(copy.size()-1, 1); + } + + TSHT::const_iterator it = TsMap.find(copy); if (it == TsMap.end()) { return GDCM_UNFOUND; @@ -93,6 +149,125 @@ TSAtr const & TS::GetValue(TSKey const & key) return it->second; } +bool TS::IsTransferSyntax(TSKey const &key) +{ + TSHT::const_iterator it = TsMap.find(key); + return it != TsMap.end(); +} + +bool TS::IsRLELossless(TSKey const &key) +{ + bool r = false; + // First check this is an actual transfer syntax + if( IsTransferSyntax(key) ) + { + if ( key == SpecialStrings[RLELossless] ) + { + r = true; + } + } + return r; +} + +bool TS::IsJPEGLossless(TSKey const &key) +{ + bool r = false; + // First check this is an actual transfer syntax + if( IsTransferSyntax(key) ) + { + if ( key == SpecialStrings[JPEGFullProgressionProcess10_12] + || key == SpecialStrings[JPEGLosslessProcess14] + || key == SpecialStrings[JPEGLosslessProcess14_1] ) + { + r = true; + } + } + return r; +} + +/** + * \brief Determines if the Transfer Syntax was already encountered + * and if it corresponds to a JPEG2000 one + * @return True when JPEG2000 (Lossly or LossLess) found. False in all + * other cases. + */ +bool TS::IsJPEG2000(TSKey const &key) +{ + bool r = false; + // First check this is an actual transfer syntax + if( IsTransferSyntax(key) ) + { + if ( key == SpecialStrings[JPEG2000Lossless] + || key == SpecialStrings[JPEG2000] ) + { + r = true; + } + } + return r; +} + +/** + * \brief Determines if the Transfer Syntax corresponds to any form + * of Jpeg encoded Pixel data. + * @return True when any form of JPEG found. False otherwise. + */ +bool TS::IsJPEG(TSKey const &key) +{ + bool r = false; + // First check this is an actual transfer syntax + if( IsTransferSyntax(key) ) + { + if ( key == SpecialStrings[JPEGBaselineProcess1] + || key == SpecialStrings[JPEGExtendedProcess2_4] + || key == SpecialStrings[JPEGExtendedProcess3_5] + || key == SpecialStrings[JPEGSpectralSelectionProcess6_8] + || IsJPEGLossless( key ) + || IsJPEG2000( key ) ) + { + r = true; + } + } + return r; +} + +/** + * \brief Determines if the Transfer Syntax corresponds to encapsulated + * of encoded Pixel Data (as opposed to native). + * @return True when encapsulated. False when native. + */ +bool TS::IsEncapsulate(TSKey const &key) +{ + bool r = false; + // First check this is an actual transfer syntax + if( IsTransferSyntax(key) ) + { + if ( key == SpecialStrings[RLELossless] + || IsJPEG(key) ) + { + r = true; + } + } + return r; +} + +TS::SpecialType TS::GetSpecialTransferSyntax(TSKey const &key) +{ + for (int i = 0; SpecialStrings[i] != NULL; i++) + { + if ( SpecialStrings[i] == key ) + { + return SpecialType(i); + } + } + + return UnknownTS; +} + +const char* TS::GetSpecialTransferSyntax(SpecialType t) +{ + return SpecialStrings[t]; +} + //----------------------------------------------------------------------------- // Protected