#else
#include <netinet/in.h>
#endif
-#include <cctype> // for isalpha
+#include <cctype> // for isalpha
#include <sstream>
#include "gdcmUtil.h"
#include "gdcmHeader.h"
-#define HEADER_LENGTH_TO_READ 256 // on ne lit plus que le debut
-#define _MaxSizeLoadElementValue_ 1024 // longueur au dela de laquelle on ne charge plus les valeurs
-
-//FIXME: this looks dirty to me...
-
-#define str2num(str, typeNum) *((typeNum *)(str))
-
-// str est un pointeur dans un tableau de caractères, qui doit contenir,
-// à cet endroit la, la représentation binaire d'un entier (16 ou 32 bits)
-// je veux récupérer ça ... dans un entier.
-// s'il y a une autre solution, évitant des cast et les indirections,
-// je suis preneur
+// Refer to gdcmHeader::CheckSwap()
+#define HEADER_LENGTH_TO_READ 256
+// Refer to gdcmHeader::SetMaxSizeLoadElementValue()
+#define _MaxSizeLoadElementValue_ 1024
VRHT * gdcmHeader::dicom_vr = (VRHT*)0;
void gdcmHeader::Initialise(void) {
- if (!gdcmHeader::dicom_vr)
- InitVRDict();
- Dicts = new gdcmDictSet();
- RefPubDict = Dicts->GetDefaultPubDict();
- RefShaDict = (gdcmDict*)0;
+ if (!gdcmHeader::dicom_vr)
+ InitVRDict();
+ Dicts = new gdcmDictSet();
+ RefPubDict = Dicts->GetDefaultPubDict();
+ RefShaDict = (gdcmDict*)0;
}
-
gdcmHeader::gdcmHeader(const char *InFilename, bool exception_on_error)
throw(gdcmFileError) {
SetMaxSizeLoadElementValue(_MaxSizeLoadElementValue_);
gdcmHeader::~gdcmHeader (void) {
- fclose(fp);
- return;
+ //FIXME obviously there is much to be done here !
+ fclose(fp);
+ return;
}
void gdcmHeader::InitVRDict (void) {
- if (dicom_vr) {
- dbg.Verbose(0, "gdcmHeader::InitVRDict:", "VR dictionary allready set");
- return;
- }
- VRHT *vr = new VRHT;
- (*vr)["AE"] = "Application Entity"; // At most 16 bytes
- (*vr)["AS"] = "Age String"; // Exactly 4 bytes
- (*vr)["AT"] = "Attribute Tag"; // 2 16-bit unsigned short integers
- (*vr)["CS"] = "Code String"; // At most 16 bytes
- (*vr)["DA"] = "Date"; // Exactly 8 bytes
- (*vr)["DS"] = "Decimal String"; // At most 16 bytes
- (*vr)["DT"] = "Date Time"; // At most 26 bytes
- (*vr)["FL"] = "Floating Point Single"; // 32-bit IEEE 754:1985 float
- (*vr)["FD"] = "Floating Point Double"; // 64-bit IEEE 754:1985 double
- (*vr)["IS"] = "Integer String"; // At most 12 bytes
- (*vr)["LO"] = "Long String"; // At most 64 chars
- (*vr)["LT"] = "Long Text"; // At most 10240 chars
- (*vr)["OB"] = "Other Byte String"; // String of bytes (vr independant)
- (*vr)["OW"] = "Other Word String"; // String of 16-bit words (vr dep)
- (*vr)["PN"] = "Person Name"; // At most 64 chars
- (*vr)["SH"] = "Short String"; // At most 16 chars
- (*vr)["SL"] = "Signed Long"; // Exactly 4 bytes
- (*vr)["SQ"] = "Sequence of Items"; // Not Applicable
- (*vr)["SS"] = "Signed Short"; // Exactly 2 bytes
- (*vr)["ST"] = "Short Text"; // At most 1024 chars
- (*vr)["TM"] = "Time"; // At most 16 bytes
- (*vr)["UI"] = "Unique Identifier"; // At most 64 bytes
- (*vr)["UL"] = "Unsigned Long "; // Exactly 4 bytes
- (*vr)["UN"] = "Unknown"; // Any length of bytes
- (*vr)["US"] = "Unsigned Short "; // Exactly 2 bytes
- (*vr)["UT"] = "Unlimited Text"; // At most 2^32 -1 chars
- dicom_vr = vr;
+ if (dicom_vr) {
+ dbg.Verbose(0, "gdcmHeader::InitVRDict:", "VR dictionary allready set");
+ return;
+ }
+ VRHT *vr = new VRHT;
+ (*vr)["AE"] = "Application Entity"; // At most 16 bytes
+ (*vr)["AS"] = "Age String"; // Exactly 4 bytes
+ (*vr)["AT"] = "Attribute Tag"; // 2 16-bit unsigned short integers
+ (*vr)["CS"] = "Code String"; // At most 16 bytes
+ (*vr)["DA"] = "Date"; // Exactly 8 bytes
+ (*vr)["DS"] = "Decimal String"; // At most 16 bytes
+ (*vr)["DT"] = "Date Time"; // At most 26 bytes
+ (*vr)["FL"] = "Floating Point Single"; // 32-bit IEEE 754:1985 float
+ (*vr)["FD"] = "Floating Point Double"; // 64-bit IEEE 754:1985 double
+ (*vr)["IS"] = "Integer String"; // At most 12 bytes
+ (*vr)["LO"] = "Long String"; // At most 64 chars
+ (*vr)["LT"] = "Long Text"; // At most 10240 chars
+ (*vr)["OB"] = "Other Byte String"; // String of bytes (vr independant)
+ (*vr)["OW"] = "Other Word String"; // String of 16-bit words (vr dep)
+ (*vr)["PN"] = "Person Name"; // At most 64 chars
+ (*vr)["SH"] = "Short String"; // At most 16 chars
+ (*vr)["SL"] = "Signed Long"; // Exactly 4 bytes
+ (*vr)["SQ"] = "Sequence of Items"; // Not Applicable
+ (*vr)["SS"] = "Signed Short"; // Exactly 2 bytes
+ (*vr)["ST"] = "Short Text"; // At most 1024 chars
+ (*vr)["TM"] = "Time"; // At most 16 bytes
+ (*vr)["UI"] = "Unique Identifier"; // At most 64 bytes
+ (*vr)["UL"] = "Unsigned Long "; // Exactly 4 bytes
+ (*vr)["UN"] = "Unknown"; // Any length of bytes
+ (*vr)["US"] = "Unsigned Short "; // Exactly 2 bytes
+ (*vr)["UT"] = "Unlimited Text"; // At most 2^32 -1 chars
+ dicom_vr = vr;
}
/**
*/
void gdcmHeader::CheckSwap()
{
- // The only guaranted way of finding the swap code is to find a
- // group tag since we know it's length has to be of four bytes i.e.
- // 0x00000004. Finding the swap code in then straigthforward. Trouble
- // occurs when we can't find such group...
- guint32 s;
- guint32 x=4; // x : pour ntohs
- bool net2host; // true when HostByteOrder is the same as NetworkByteOrder
-
- int lgrLue;
- char * entCur;
- char deb[HEADER_LENGTH_TO_READ];
-
- // First, compare HostByteOrder and NetworkByteOrder in order to
- // determine if we shall need to swap bytes (i.e. the Endian type).
- if (x==ntohs(x))
- net2host = true;
- else
- net2host = false;
-
- // The easiest case is the one of a DICOM header, since it possesses a
- // file preamble where it suffice to look for the string "DICM".
- lgrLue = fread(deb, 1, HEADER_LENGTH_TO_READ, fp);
-
- entCur = deb + 128;
- if(memcmp(entCur, "DICM", (size_t)4) == 0) {
- filetype = TrueDicom;
- dbg.Verbose(1, "gdcmHeader::CheckSwap:", "looks like DICOM Version3");
- } else {
- filetype = Unknown;
- dbg.Verbose(1, "gdcmHeader::CheckSwap:", "not a DICOM Version3 file");
- }
-
- if(filetype == TrueDicom) {
- // Next, determine the value representation (VR). Let's skip to the
- // first element (0002, 0000) and check there if we find "UL", in
- // which case we (almost) know it is explicit VR.
- // WARNING: if it happens to be implicit VR then what we will read
- // is the length of the group. If this ascii representation of this
- // length happens to be "UL" then we shall believe it is explicit VR.
- // FIXME: in order to fix the above warning, we could read the next
- // element value (or a couple of elements values) in order to make
- // sure we are not commiting a big mistake.
- // We need to skip :
- // * the 128 bytes of File Preamble (often padded with zeroes),
- // * the 4 bytes of "DICM" string,
- // * the 4 bytes of the first tag (0002, 0000),
- // i.e. a total of 136 bytes.
- entCur = deb + 136;
- if(memcmp(entCur, "UL", (size_t)2) == 0) {
- filetype = ExplicitVR;
- dbg.Verbose(1, "gdcmHeader::CheckSwap:",
- "explicit Value Representation");
- } else {
- filetype = ImplicitVR;
- dbg.Verbose(1, "gdcmHeader::CheckSwap:",
- "not an explicit Value Representation");
- }
-
- if (net2host) {
- sw = 4321;
- dbg.Verbose(1, "gdcmHeader::CheckSwap:",
- "HostByteOrder != NetworkByteOrder");
- } else {
- sw = 0;
- dbg.Verbose(1, "gdcmHeader::CheckSwap:",
- "HostByteOrder = NetworkByteOrder");
- }
-
- // Position the file position indicator at first tag (i.e.
- // after the file preamble and the "DICM" string).
- rewind(fp);
- fseek (fp, 132L, SEEK_SET);
- return;
- } // End of TrueDicom
-
- // Alas, this is not a DicomV3 file and whatever happens there is no file
- // preamble. We can reset the file position indicator to where the data
- // is (i.e. the beginning of the file).
- rewind(fp);
-
- // Our next best chance would be to be considering a 'clean' ACR/NEMA file.
- // By clean we mean that the length of the first tag is written down.
- // If this is the case and since the length of the first group HAS to be
- // four (bytes), then determining the proper swap code is straightforward.
-
- entCur = deb + 4;
- s = str2num(entCur, guint32);
-
- switch (s) {
- case 0x00040000 :
- sw = 3412;
- filetype = ACR;
- return;
- case 0x04000000 :
- sw = 4321;
- filetype = ACR;
- return;
- case 0x00000400 :
- sw = 2143;
- filetype = ACR;
- return;
- case 0x00000004 :
- sw = 0;
- filetype = ACR;
- return;
- default :
- dbg.Verbose(0, "gdcmHeader::CheckSwap:",
- "ACR/NEMA unfound swap info (time to raise bets)");
- }
-
- // We are out of luck. It is not a DicomV3 nor a 'clean' ACR/NEMA file.
- // It is time for despaired wild guesses. So, let's assume this file
- // happens to be 'dirty' ACR/NEMA, i.e. the length of the group is
- // not present. Then the only info we have is the net2host one.
- if (! net2host )
- sw = 0;
- else
- sw = 4321;
- return;
+ // The only guaranted way of finding the swap code is to find a
+ // group tag since we know it's length has to be of four bytes i.e.
+ // 0x00000004. Finding the swap code in then straigthforward. Trouble
+ // occurs when we can't find such group...
+ guint32 s;
+ guint32 x=4; // x : pour ntohs
+ bool net2host; // true when HostByteOrder is the same as NetworkByteOrder
+
+ int lgrLue;
+ char * entCur;
+ char deb[HEADER_LENGTH_TO_READ];
+
+ // First, compare HostByteOrder and NetworkByteOrder in order to
+ // determine if we shall need to swap bytes (i.e. the Endian type).
+ if (x==ntohs(x))
+ net2host = true;
+ else
+ net2host = false;
+
+ // The easiest case is the one of a DICOM header, since it possesses a
+ // file preamble where it suffice to look for the string "DICM".
+ lgrLue = fread(deb, 1, HEADER_LENGTH_TO_READ, fp);
+
+ entCur = deb + 128;
+ if(memcmp(entCur, "DICM", (size_t)4) == 0) {
+ filetype = TrueDicom;
+ dbg.Verbose(1, "gdcmHeader::CheckSwap:", "looks like DICOM Version3");
+ } else {
+ filetype = Unknown;
+ dbg.Verbose(1, "gdcmHeader::CheckSwap:", "not a DICOM Version3 file");
+ }
+
+ if(filetype == TrueDicom) {
+ // Next, determine the value representation (VR). Let's skip to the
+ // first element (0002, 0000) and check there if we find "UL", in
+ // which case we (almost) know it is explicit VR.
+ // WARNING: if it happens to be implicit VR then what we will read
+ // is the length of the group. If this ascii representation of this
+ // length happens to be "UL" then we shall believe it is explicit VR.
+ // FIXME: in order to fix the above warning, we could read the next
+ // element value (or a couple of elements values) in order to make
+ // sure we are not commiting a big mistake.
+ // We need to skip :
+ // * the 128 bytes of File Preamble (often padded with zeroes),
+ // * the 4 bytes of "DICM" string,
+ // * the 4 bytes of the first tag (0002, 0000),
+ // i.e. a total of 136 bytes.
+ entCur = deb + 136;
+ if(memcmp(entCur, "UL", (size_t)2) == 0) {
+ filetype = ExplicitVR;
+ dbg.Verbose(1, "gdcmHeader::CheckSwap:",
+ "explicit Value Representation");
+ } else {
+ filetype = ImplicitVR;
+ dbg.Verbose(1, "gdcmHeader::CheckSwap:",
+ "not an explicit Value Representation");
+ }
+
+ if (net2host) {
+ sw = 4321;
+ dbg.Verbose(1, "gdcmHeader::CheckSwap:",
+ "HostByteOrder != NetworkByteOrder");
+ } else {
+ sw = 0;
+ dbg.Verbose(1, "gdcmHeader::CheckSwap:",
+ "HostByteOrder = NetworkByteOrder");
+ }
+
+ // Position the file position indicator at first tag (i.e.
+ // after the file preamble and the "DICM" string).
+ rewind(fp);
+ fseek (fp, 132L, SEEK_SET);
+ return;
+ } // End of TrueDicom
+
+ // Alas, this is not a DicomV3 file and whatever happens there is no file
+ // preamble. We can reset the file position indicator to where the data
+ // is (i.e. the beginning of the file).
+ rewind(fp);
+
+ // Our next best chance would be to be considering a 'clean' ACR/NEMA file.
+ // By clean we mean that the length of the first tag is written down.
+ // If this is the case and since the length of the first group HAS to be
+ // four (bytes), then determining the proper swap code is straightforward.
+
+ entCur = deb + 4;
+ // We assume the array of char we are considering contains the binary
+ // representation of a 32 bits integer. Hence the following dirty
+ // trick :
+ s = *((guint32 *)(entCur));
+
+ switch (s) {
+ case 0x00040000 :
+ sw = 3412;
+ filetype = ACR;
+ return;
+ case 0x04000000 :
+ sw = 4321;
+ filetype = ACR;
+ return;
+ case 0x00000400 :
+ sw = 2143;
+ filetype = ACR;
+ return;
+ case 0x00000004 :
+ sw = 0;
+ filetype = ACR;
+ return;
+ default :
+ dbg.Verbose(0, "gdcmHeader::CheckSwap:",
+ "ACR/NEMA unfound swap info (time to raise bets)");
+ }
+
+ // We are out of luck. It is not a DicomV3 nor a 'clean' ACR/NEMA file.
+ // It is time for despaired wild guesses. So, let's assume this file
+ // happens to be 'dirty' ACR/NEMA, i.e. the length of the group is
+ // not present. Then the only info we have is the net2host one.
+ if (! net2host )
+ sw = 0;
+ else
+ sw = 4321;
+ return;
}
void gdcmHeader::SwitchSwapToBigEndian(void) {
- dbg.Verbose(1, "gdcmHeader::SwitchSwapToBigEndian",
- "Switching to BigEndian mode.");
- if ( sw == 0 ) {
- sw = 4321;
- return;
- }
- if ( sw == 4321 ) {
- sw = 0;
- return;
- }
- if ( sw == 3412 ) {
- sw = 2143;
- return;
- }
- if ( sw == 2143 )
- sw = 3412;
+ dbg.Verbose(1, "gdcmHeader::SwitchSwapToBigEndian",
+ "Switching to BigEndian mode.");
+ if ( sw == 0 ) {
+ sw = 4321;
+ return;
+ }
+ if ( sw == 4321 ) {
+ sw = 0;
+ return;
+ }
+ if ( sw == 3412 ) {
+ sw = 2143;
+ return;
+ }
+ if ( sw == 2143 )
+ sw = 3412;
}
void gdcmHeader::GetPixels(size_t lgrTotale, void* _Pixels) {
- size_t pixelsOffset;
- pixelsOffset = GetPixelOffset();
- fseek(fp, pixelsOffset, SEEK_SET);
- fread(_Pixels, 1, lgrTotale, fp);
+ size_t pixelsOffset;
+ pixelsOffset = GetPixelOffset();
+ fseek(fp, pixelsOffset, SEEK_SET);
+ fread(_Pixels, 1, lgrTotale, fp);
}
* \brief Find the value representation of the current tag.
*/
void gdcmHeader::FindVR( ElValue *ElVal) {
- if (filetype != ExplicitVR)
- return;
-
- char VR[3];
- string vr;
- int lgrLue;
- long PositionOnEntry = ftell(fp);
- // Warning: we believe this is explicit VR (Value Representation) because
- // we used a heuristic that found "UL" in the first tag. Alas this
- // doesn't guarantee that all the tags will be in explicit VR. In some
- // cases (see e-film filtered files) one finds implicit VR tags mixed
- // within an explicit VR file. Hence we make sure the present tag
- // is in explicit VR and try to fix things if it happens not to be
- // the case.
- bool RealExplicit = true;
-
- lgrLue=fread (&VR, (size_t)2,(size_t)1, fp);
- VR[2]=0;
- vr = string(VR);
-
- // Assume we are reading a falsely explicit VR file i.e. we reached
- // a tag where we expect reading a VR but are in fact we read the
- // first to bytes of the length. Then we will interogate (through find)
- // the dicom_vr dictionary with oddities like "\004\0" which crashes
- // both GCC and VC++ implementations of the STL map. Hence when the
- // expected VR read happens to be non-ascii characters we consider
- // we hit falsely explicit VR tag.
-
- if ( (!isalpha(VR[0])) && (!isalpha(VR[1])) )
- RealExplicit = false;
-
- // CLEANME searching the dicom_vr at each occurence is expensive.
- // PostPone this test in an optional integrity check at the end
- // of parsing or only in debug mode.
- if ( RealExplicit && !dicom_vr->count(vr) )
- RealExplicit = false;
-
- if ( RealExplicit ) {
- if ( ElVal->IsVrUnknown() ) {
- // When not a dictionary entry, we can safely overwrite the vr.
- ElVal->SetVR(vr);
- return;
- }
- if ( ElVal->GetVR() == vr ) {
- // The vr we just read and the dictionary agree. Nothing to do.
- return;
- }
- // The vr present in the file and the dictionary disagree. We assume
- // the file writer knew best and use the vr of the file. Since it would
- // be unwise to overwrite the vr of a dictionary (since it would
- // compromise it's next user), we need to clone the actual DictEntry
- // and change the vr for the read one.
- gdcmDictEntry* NewTag = new gdcmDictEntry(ElVal->GetGroup(),
- ElVal->GetElement(),
- vr,
- "FIXME",
- ElVal->GetName());
- ElVal->SetDictEntry(NewTag);
- return;
- }
-
- // We thought this was explicit VR, but we end up with an
- // implicit VR tag. Let's backtrack.
- dbg.Verbose(1, "gdcmHeader::FindVR:", "Falsely explicit vr file");
- fseek(fp, PositionOnEntry, SEEK_SET);
- // When this element is known in the dictionary we shall use, e.g. for
- // the semantics (see the usage of IsAnInteger), the vr proposed by the
- // dictionary entry. Still we have to flag the element as implicit since
- // we know now our assumption on expliciteness is not furfilled.
- // avoid .
- if ( ElVal->IsVrUnknown() )
- ElVal->SetVR("Implicit");
- ElVal->SetImplicitVr();
+ if (filetype != ExplicitVR)
+ return;
+
+ char VR[3];
+ string vr;
+ int lgrLue;
+ long PositionOnEntry = ftell(fp);
+ // Warning: we believe this is explicit VR (Value Representation) because
+ // we used a heuristic that found "UL" in the first tag. Alas this
+ // doesn't guarantee that all the tags will be in explicit VR. In some
+ // cases (see e-film filtered files) one finds implicit VR tags mixed
+ // within an explicit VR file. Hence we make sure the present tag
+ // is in explicit VR and try to fix things if it happens not to be
+ // the case.
+ bool RealExplicit = true;
+
+ lgrLue=fread (&VR, (size_t)2,(size_t)1, fp);
+ VR[2]=0;
+ vr = string(VR);
+
+ // Assume we are reading a falsely explicit VR file i.e. we reached
+ // a tag where we expect reading a VR but are in fact we read the
+ // first to bytes of the length. Then we will interogate (through find)
+ // the dicom_vr dictionary with oddities like "\004\0" which crashes
+ // both GCC and VC++ implementations of the STL map. Hence when the
+ // expected VR read happens to be non-ascii characters we consider
+ // we hit falsely explicit VR tag.
+
+ if ( (!isalpha(VR[0])) && (!isalpha(VR[1])) )
+ RealExplicit = false;
+
+ // CLEANME searching the dicom_vr at each occurence is expensive.
+ // PostPone this test in an optional integrity check at the end
+ // of parsing or only in debug mode.
+ if ( RealExplicit && !dicom_vr->count(vr) )
+ RealExplicit = false;
+
+ if ( RealExplicit ) {
+ if ( ElVal->IsVrUnknown() ) {
+ // When not a dictionary entry, we can safely overwrite the vr.
+ ElVal->SetVR(vr);
+ return;
+ }
+ if ( ElVal->GetVR() == vr ) {
+ // The vr we just read and the dictionary agree. Nothing to do.
+ return;
+ }
+ // The vr present in the file and the dictionary disagree. We assume
+ // the file writer knew best and use the vr of the file. Since it would
+ // be unwise to overwrite the vr of a dictionary (since it would
+ // compromise it's next user), we need to clone the actual DictEntry
+ // and change the vr for the read one.
+ gdcmDictEntry* NewTag = new gdcmDictEntry(ElVal->GetGroup(),
+ ElVal->GetElement(),
+ vr,
+ "FIXME",
+ ElVal->GetName());
+ ElVal->SetDictEntry(NewTag);
+ return;
+ }
+
+ // We thought this was explicit VR, but we end up with an
+ // implicit VR tag. Let's backtrack.
+ dbg.Verbose(1, "gdcmHeader::FindVR:", "Falsely explicit vr file");
+ fseek(fp, PositionOnEntry, SEEK_SET);
+ // When this element is known in the dictionary we shall use, e.g. for
+ // the semantics (see the usage of IsAnInteger), the vr proposed by the
+ // dictionary entry. Still we have to flag the element as implicit since
+ // we know now our assumption on expliciteness is not furfilled.
+ // avoid .
+ if ( ElVal->IsVrUnknown() )
+ ElVal->SetVR("Implicit");
+ ElVal->SetImplicitVr();
}
/**
* @return True when ImplicitVRLittleEndian found. False in all other cases.
*/
bool gdcmHeader::IsImplicitVRLittleEndianTransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2" )
+ return true;
+ return false;
}
/**
* @return True when ExplicitVRLittleEndian found. False in all other cases.
*/
bool gdcmHeader::IsExplicitVRLittleEndianTransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.1" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.1" )
+ return true;
+ return false;
}
/**
* @return True when DeflatedExplicitVRLittleEndian found. False in all other cases.
*/
bool gdcmHeader::IsDeflatedExplicitVRLittleEndianTransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.1.99" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.1.99" )
+ return true;
+ return false;
}
-
/**
* \ingroup gdcmHeader
* \brief Determines if the Transfer Syntax was allready encountered
* @return True when big endian found. False in all other cases.
*/
bool gdcmHeader::IsExplicitVRBigEndianTransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.2" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.2" )
+ return true;
+ return false;
}
-
/**
* \ingroup gdcmHeader
* \brief Determines if the Transfer Syntax was allready encountered
* @return True when JPEGBaseLineProcess1found. False in all other cases.
*/
bool gdcmHeader::IsJPEGBaseLineProcess1TransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.4.50" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.4.50" )
+ return true;
+ return false;
}
/**
* @return True when JPEGExtendedProcess2-4 found. False in all other cases.
*/
bool gdcmHeader::IsJPEGExtendedProcess2_4TransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.4.51" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.4.51" )
+ return true;
+ return false;
}
-
/**
* \ingroup gdcmHeader
* \brief Determines if the Transfer Syntax was allready encountered
* @return True when JPEGExtendedProcess3-5 found. False in all other cases.
*/
bool gdcmHeader::IsJPEGExtendedProcess3_5TransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.4.52" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.4.52" )
+ return true;
+ return false;
}
/**
* \brief Determines if the Transfer Syntax was allready encountered
* and if it corresponds to a JPEGSpectralSelectionProcess6-8 one.
*
- * @return True when JPEGSpectralSelectionProcess6-8 found. False in all other cases.
+ * @return True when JPEGSpectralSelectionProcess6-8 found. False in all
+ * other cases.
*/
bool gdcmHeader::IsJPEGSpectralSelectionProcess6_8TransferSyntax(void) {
- ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
- if ( !Element )
- return false;
- LoadElementValueSafe(Element);
- string Transfer = Element->GetValue();
- if ( Transfer == "1.2.840.10008.1.2.4.53" )
- return true;
- return false;
+ ElValue* Element = PubElVals.GetElementByNumber(0x0002, 0x0010);
+ if ( !Element )
+ return false;
+ LoadElementValueSafe(Element);
+ string Transfer = Element->GetValue();
+ if ( Transfer == "1.2.840.10008.1.2.4.53" )
+ return true;
+ return false;
}
-//
-// Euhhhhhhh
-// Il y en a encore DIX-SEPT, comme ça.
-// Il faudrait trouver qq chose + rusé ...
-//
-// --> probablement TOUS les supprimer (Eric dixit)
-//
-
-
+/**
+ * \ingroup gdcmHeader
+ * \brief When the length of an element value is obviously wrong (because
+ * the parser went Jabberwocky) one can hope improving things by
+ * applying this heuristic.
+ */
void gdcmHeader::FixFoundLength(ElValue * ElVal, guint32 FoundLength) {
- // Heuristic: a final fix.
- if ( FoundLength == 0xffffffff)
- FoundLength = 0;
- ElVal->SetLength(FoundLength);
+ if ( FoundLength == 0xffffffff)
+ FoundLength = 0;
+ ElVal->SetLength(FoundLength);
}
guint32 gdcmHeader::FindLengthOB(void) {
- // See PS 3.5-2001, section A.4 p. 49 on encapsulation of encoded pixel data.
- guint16 g;
- guint16 n;
- long PositionOnEntry = ftell(fp);
- bool FoundSequenceDelimiter = false;
- guint32 TotalLength = 0;
- guint32 ItemLength;
-
- while ( ! FoundSequenceDelimiter) {
- g = ReadInt16();
- n = ReadInt16();
- if (errno == 1)
- return 0;
- TotalLength += 4; // We even have to decount the group and element
- if ( g != 0xfffe ) {
- dbg.Verbose(1, "gdcmHeader::FindLengthOB: ",
- "wrong group for an item sequence.");
- errno = 1;
- return 0;
- }
- if ( n == 0xe0dd )
- FoundSequenceDelimiter = true;
- else if ( n != 0xe000) {
- dbg.Verbose(1, "gdcmHeader::FindLengthOB: ",
- "wrong element for an item sequence.");
- errno = 1;
- return 0;
- }
- ItemLength = ReadInt32();
- TotalLength += ItemLength + 4; // We add 4 bytes since we just read
- // the ItemLength with ReadInt32
- SkipBytes(ItemLength);
- }
- fseek(fp, PositionOnEntry, SEEK_SET);
- return TotalLength;
+ // See PS 3.5-2001, section A.4 p. 49 on encapsulation of encoded pixel data.
+ guint16 g;
+ guint16 n;
+ long PositionOnEntry = ftell(fp);
+ bool FoundSequenceDelimiter = false;
+ guint32 TotalLength = 0;
+ guint32 ItemLength;
+
+ while ( ! FoundSequenceDelimiter) {
+ g = ReadInt16();
+ n = ReadInt16();
+ if (errno == 1)
+ return 0;
+ TotalLength += 4; // We even have to decount the group and element
+ if ( g != 0xfffe ) {
+ dbg.Verbose(1, "gdcmHeader::FindLengthOB: ",
+ "wrong group for an item sequence.");
+ errno = 1;
+ return 0;
+ }
+ if ( n == 0xe0dd )
+ FoundSequenceDelimiter = true;
+ else if ( n != 0xe000) {
+ dbg.Verbose(1, "gdcmHeader::FindLengthOB: ",
+ "wrong element for an item sequence.");
+ errno = 1;
+ return 0;
+ }
+ ItemLength = ReadInt32();
+ TotalLength += ItemLength + 4; // We add 4 bytes since we just read
+ // the ItemLength with ReadInt32
+ SkipBytes(ItemLength);
+ }
+ fseek(fp, PositionOnEntry, SEEK_SET);
+ return TotalLength;
}
void gdcmHeader::FindLength(ElValue * ElVal) {
- guint16 element = ElVal->GetElement();
- string vr = ElVal->GetVR();
- guint16 length16;
-
- if ( (filetype == ExplicitVR) && ! ElVal->IsImplicitVr() ) {
-
- if ( (vr=="OB") || (vr=="OW") || (vr=="SQ") || (vr=="UN") ) {
- // The following reserved two bytes (see PS 3.5-2001, section
- // 7.1.2 Data element structure with explicit vr p27) must be
- // skipped before proceeding on reading the length on 4 bytes.
- fseek(fp, 2L, SEEK_CUR);
- guint32 length32 = ReadInt32();
- if ( (vr == "OB") && (length32 == 0xffffffff) ) {
- ElVal->SetLength(FindLengthOB());
- return;
- }
- FixFoundLength(ElVal, length32);
- return;
- }
-
- // Length is encoded on 2 bytes.
- length16 = ReadInt16();
-
- // We can tell the current file is encoded in big endian (like
- // Data/US-RGB-8-epicard) when we find the "Transfer Syntax" tag
- // and it's value is the one of the encoding of a big endian file.
- // In order to deal with such big endian encoded files, we have
- // (at least) two strategies:
- // * when we load the "Transfer Syntax" tag with value of big endian
- // encoding, we raise the proper flags. Then we wait for the end
- // of the META group (0x0002) among which is "Transfer Syntax",
- // before switching the swap code to big endian. We have to postpone
- // the switching of the swap code since the META group is fully encoded
- // in little endian, and big endian coding only starts at the next
- // group. The corresponding code can be hard to analyse and adds
- // many additional unnecessary tests for regular tags.
- // * the second strategy consists in waiting for trouble, that shall appear
- // when we find the first group with big endian encoding. This is
- // easy to detect since the length of a "Group Length" tag (the
- // ones with zero as element number) has to be of 4 (0x0004). When we
- // encouter 1024 (0x0400) chances are the encoding changed and we
- // found a group with big endian encoding.
- // We shall use this second strategy. In order make sure that we
- // can interpret the presence of an apparently big endian encoded
- // length of a "Group Length" without committing a big mistake, we
- // add an additional check: we look in the allready parsed elements
- // for the presence of a "Transfer Syntax" whose value has to be "big
- // endian encoding". When this is the case, chances are we got our
- // hands on a big endian encoded file: we switch the swap code to
- // big endian and proceed...
- if ( (element == 0x000) && (length16 == 0x0400) ) {
- if ( ! IsExplicitVRBigEndianTransferSyntax() ) {
- dbg.Verbose(0, "gdcmHeader::FindLength", "not explicit VR");
- errno = 1;
- return;
- }
- length16 = 4;
- SwitchSwapToBigEndian();
- // Restore the unproperly loaded values i.e. the group, the element
- // and the dictionary entry depending on them.
- guint16 CorrectGroup = SwapShort(ElVal->GetGroup());
- guint16 CorrectElem = SwapShort(ElVal->GetElement());
- gdcmDictEntry * NewTag = GetDictEntryByKey(CorrectGroup, CorrectElem);
- if (!NewTag) {
- // This correct tag is not in the dictionary. Create a new one.
- NewTag = new gdcmDictEntry(CorrectGroup, CorrectElem);
- }
- // FIXME this can create a memory leaks on the old entry that be
- // left unreferenced.
- ElVal->SetDictEntry(NewTag);
- }
-
- // Heuristic: well some files are really ill-formed.
- if ( length16 == 0xffff) {
- length16 = 0;
- dbg.Verbose(0, "gdcmHeader::FindLength",
- "Erroneous element length fixed.");
- }
- FixFoundLength(ElVal, (guint32)length16);
- return;
- }
-
- // Either implicit VR or a non DICOM conformal (see not below) explicit
- // VR that ommited the VR of (at least) this element. Farts happen.
- // [Note: according to the part 5, PS 3.5-2001, section 7.1 p25
- // on Data elements "Implicit and Explicit VR Data Elements shall
- // not coexist in a Data Set and Data Sets nested within it".]
- // Length is on 4 bytes.
- FixFoundLength(ElVal, ReadInt32());
+ guint16 element = ElVal->GetElement();
+ string vr = ElVal->GetVR();
+ guint16 length16;
+
+ if ( (filetype == ExplicitVR) && ! ElVal->IsImplicitVr() ) {
+
+ if ( (vr=="OB") || (vr=="OW") || (vr=="SQ") || (vr=="UN") ) {
+ // The following reserved two bytes (see PS 3.5-2001, section
+ // 7.1.2 Data element structure with explicit vr p27) must be
+ // skipped before proceeding on reading the length on 4 bytes.
+ fseek(fp, 2L, SEEK_CUR);
+ guint32 length32 = ReadInt32();
+ if ( (vr == "OB") && (length32 == 0xffffffff) ) {
+ ElVal->SetLength(FindLengthOB());
+ return;
+ }
+ FixFoundLength(ElVal, length32);
+ return;
+ }
+
+ // Length is encoded on 2 bytes.
+ length16 = ReadInt16();
+
+ // We can tell the current file is encoded in big endian (like
+ // Data/US-RGB-8-epicard) when we find the "Transfer Syntax" tag
+ // and it's value is the one of the encoding of a big endian file.
+ // In order to deal with such big endian encoded files, we have
+ // (at least) two strategies:
+ // * when we load the "Transfer Syntax" tag with value of big endian
+ // encoding, we raise the proper flags. Then we wait for the end
+ // of the META group (0x0002) among which is "Transfer Syntax",
+ // before switching the swap code to big endian. We have to postpone
+ // the switching of the swap code since the META group is fully encoded
+ // in little endian, and big endian coding only starts at the next
+ // group. The corresponding code can be hard to analyse and adds
+ // many additional unnecessary tests for regular tags.
+ // * the second strategy consists in waiting for trouble, that shall
+ // appear when we find the first group with big endian encoding. This
+ // is easy to detect since the length of a "Group Length" tag (the
+ // ones with zero as element number) has to be of 4 (0x0004). When we
+ // encouter 1024 (0x0400) chances are the encoding changed and we
+ // found a group with big endian encoding.
+ // We shall use this second strategy. In order to make sure that we
+ // can interpret the presence of an apparently big endian encoded
+ // length of a "Group Length" without committing a big mistake, we
+ // add an additional check: we look in the allready parsed elements
+ // for the presence of a "Transfer Syntax" whose value has to be "big
+ // endian encoding". When this is the case, chances are we have got our
+ // hands on a big endian encoded file: we switch the swap code to
+ // big endian and proceed...
+ if ( (element == 0x000) && (length16 == 0x0400) ) {
+ if ( ! IsExplicitVRBigEndianTransferSyntax() ) {
+ dbg.Verbose(0, "gdcmHeader::FindLength", "not explicit VR");
+ errno = 1;
+ return;
+ }
+ length16 = 4;
+ SwitchSwapToBigEndian();
+ // Restore the unproperly loaded values i.e. the group, the element
+ // and the dictionary entry depending on them.
+ guint16 CorrectGroup = SwapShort(ElVal->GetGroup());
+ guint16 CorrectElem = SwapShort(ElVal->GetElement());
+ gdcmDictEntry * NewTag = GetDictEntryByKey(CorrectGroup, CorrectElem);
+ if (!NewTag) {
+ // This correct tag is not in the dictionary. Create a new one.
+ NewTag = new gdcmDictEntry(CorrectGroup, CorrectElem);
+ }
+ // FIXME this can create a memory leaks on the old entry that be
+ // left unreferenced.
+ ElVal->SetDictEntry(NewTag);
+ }
+
+ // Heuristic: well some files are really ill-formed.
+ if ( length16 == 0xffff) {
+ length16 = 0;
+ dbg.Verbose(0, "gdcmHeader::FindLength",
+ "Erroneous element length fixed.");
+ }
+ FixFoundLength(ElVal, (guint32)length16);
+ return;
+ }
+
+ // Either implicit VR or a non DICOM conformal (see not below) explicit
+ // VR that ommited the VR of (at least) this element. Farts happen.
+ // [Note: according to the part 5, PS 3.5-2001, section 7.1 p25
+ // on Data elements "Implicit and Explicit VR Data Elements shall
+ // not coexist in a Data Set and Data Sets nested within it".]
+ // Length is on 4 bytes.
+ FixFoundLength(ElVal, ReadInt32());
}
/**
* @return The suggested integer.
*/
guint32 gdcmHeader::SwapLong(guint32 a) {
- // FIXME: il pourrait y avoir un pb pour les entiers negatifs ...
- switch (sw) {
- case 0 :
- break;
- case 4321 :
- a=( ((a<<24) & 0xff000000) | ((a<<8) & 0x00ff0000) |
- ((a>>8) & 0x0000ff00) | ((a>>24) & 0x000000ff) );
- break;
-
- case 3412 :
- a=( ((a<<16) & 0xffff0000) | ((a>>16) & 0x0000ffff) );
- break;
-
- case 2143 :
- a=( ((a<<8) & 0xff00ff00) | ((a>>8) & 0x00ff00ff) );
- break;
- default :
- dbg.Error(" gdcmHeader::SwapLong : unset swap code");
- a=0;
- }
- return(a);
+ // FIXME: il pourrait y avoir un pb pour les entiers negatifs ...
+ switch (sw) {
+ case 0 :
+ break;
+ case 4321 :
+ a=( ((a<<24) & 0xff000000) | ((a<<8) & 0x00ff0000) |
+ ((a>>8) & 0x0000ff00) | ((a>>24) & 0x000000ff) );
+ break;
+
+ case 3412 :
+ a=( ((a<<16) & 0xffff0000) | ((a>>16) & 0x0000ffff) );
+ break;
+
+ case 2143 :
+ a=( ((a<<8) & 0xff00ff00) | ((a>>8) & 0x00ff00ff) );
+ break;
+ default :
+ dbg.Error(" gdcmHeader::SwapLong : unset swap code");
+ a=0;
+ }
+ return(a);
}
/**
* @return The properly swaped 16 bits integer.
*/
guint16 gdcmHeader::SwapShort(guint16 a) {
- if ( (sw==4321) || (sw==2143) )
- a =(((a<<8) & 0x0ff00) | ((a>>8)&0x00ff));
- return (a);
+ if ( (sw==4321) || (sw==2143) )
+ a =(((a<<8) & 0x0ff00) | ((a>>8)&0x00ff));
+ return (a);
}
void gdcmHeader::SkipBytes(guint32 NBytes) {
- //FIXME don't dump the returned value
- (void)fseek(fp, (long)NBytes, SEEK_CUR);
+ //FIXME don't dump the returned value
+ (void)fseek(fp, (long)NBytes, SEEK_CUR);
}
void gdcmHeader::SkipElementValue(ElValue * ElVal) {
- SkipBytes(ElVal->GetLength());
+ SkipBytes(ElVal->GetLength());
}
void gdcmHeader::SetMaxSizeLoadElementValue(long NewSize) {
- if (NewSize < 0)
- return;
- if ((guint32)NewSize >= (guint32)0xffffffff) {
- MaxSizeLoadElementValue = 0xffffffff;
- return;
- }
- MaxSizeLoadElementValue = NewSize;
+ if (NewSize < 0)
+ return;
+ if ((guint32)NewSize >= (guint32)0xffffffff) {
+ MaxSizeLoadElementValue = 0xffffffff;
+ return;
+ }
+ MaxSizeLoadElementValue = NewSize;
}
/**
* gdcmHeader::SetMaxSizeLoadElementValue()
*/
void gdcmHeader::LoadElementValue(ElValue * ElVal) {
- size_t item_read;
- guint16 group = ElVal->GetGroup();
- guint16 elem = ElVal->GetElement();
- string vr = ElVal->GetVR();
- guint32 length = ElVal->GetLength();
- bool SkipLoad = false;
-
- fseek(fp, (long)ElVal->GetOffset(), SEEK_SET);
-
- // Sequences not treated yet !
- //
- // Ne faudrait-il pas au contraire trouver immediatement
- // une maniere 'propre' de traiter les sequences (vr = SQ)
- // car commencer par les ignorer risque de conduire a qq chose
- // qui pourrait ne pas etre generalisable
- //
- if( vr == "SQ" )
- SkipLoad = true;
-
- // Heuristic : a sequence "contains" a set of tags (called items). It looks
- // like the last tag of a sequence (the one that terminates the sequence)
- // has a group of 0xfffe (with a dummy length).
- if( group == 0xfffe )
- SkipLoad = true;
-
- // The group length doesn't represent data to be loaded in memory, since
- // each element of the group shall be loaded individualy.
- if( elem == 0 )
- //SkipLoad = true; // modif sauvage JPR
- // On charge la longueur du groupe
- // quand l'element 0x0000 est présent !
-
- if ( SkipLoad ) {
- // FIXME the following skip is not necessary
- SkipElementValue(ElVal);
- ElVal->SetLength(0);
- ElVal->SetValue("gdcm::Skipped");
- return;
- }
-
- // When the length is zero things are easy:
- if ( length == 0 ) {
- ElVal->SetValue("");
- return;
- }
-
- // The elements whose length is bigger than the specified upper bound
- // are not loaded. Instead we leave a short notice of the offset of
- // the element content and it's length.
- if (length > MaxSizeLoadElementValue) {
- ostringstream s;
- s << "gdcm::NotLoaded.";
- s << " Address:" << (long)ElVal->GetOffset();
- s << " Length:" << ElVal->GetLength();
- ElVal->SetValue(s.str());
- return;
- }
-
- // When an integer is expected, read and convert the following two or
- // four bytes properly i.e. as an integer as opposed to a string.
- if ( IsAnInteger(ElVal) ) {
- guint32 NewInt;
- if( length == 2 ) {
- NewInt = ReadInt16();
- } else if( length == 4 ) {
- NewInt = ReadInt32();
- } else
- dbg.Error(true, "LoadElementValue: Inconsistency when reading Int.");
-
- //FIXME: make the following an util fonction
- ostringstream s;
- s << NewInt;
- ElVal->SetValue(s.str());
- return;
- }
-
- // FIXME The exact size should be length if we move to strings or whatever
- char* NewValue = (char*)malloc(length+1);
- if( !NewValue) {
- dbg.Verbose(1, "LoadElementValue: Failed to allocate NewValue");
- return;
- }
- NewValue[length]= 0;
-
- item_read = fread(NewValue, (size_t)length, (size_t)1, fp);
- if ( item_read != 1 ) {
- free(NewValue);
- dbg.Verbose(1, "gdcmHeader::LoadElementValue","unread element value");
- ElVal->SetValue("gdcm::UnRead");
- return;
- }
- ElVal->SetValue(NewValue);
+ size_t item_read;
+ guint16 group = ElVal->GetGroup();
+ guint16 elem = ElVal->GetElement();
+ string vr = ElVal->GetVR();
+ guint32 length = ElVal->GetLength();
+ bool SkipLoad = false;
+
+ fseek(fp, (long)ElVal->GetOffset(), SEEK_SET);
+
+ // Sequences not treated yet !
+ //
+ // Ne faudrait-il pas au contraire trouver immediatement
+ // une maniere 'propre' de traiter les sequences (vr = SQ)
+ // car commencer par les ignorer risque de conduire a qq chose
+ // qui pourrait ne pas etre generalisable
+ //
+ if( vr == "SQ" )
+ SkipLoad = true;
+
+ // Heuristic : a sequence "contains" a set of tags (called items). It looks
+ // like the last tag of a sequence (the one that terminates the sequence)
+ // has a group of 0xfffe (with a dummy length).
+ if( group == 0xfffe )
+ SkipLoad = true;
+
+ // The group length doesn't represent data to be loaded in memory, since
+ // each element of the group shall be loaded individualy.
+ if( elem == 0 )
+ //SkipLoad = true; // modif sauvage JPR
+ // On charge la longueur du groupe
+ // quand l'element 0x0000 est présent !
+
+ if ( SkipLoad ) {
+ // FIXME the following skip is not necessary
+ SkipElementValue(ElVal);
+ ElVal->SetLength(0);
+ ElVal->SetValue("gdcm::Skipped");
+ return;
+ }
+
+ // When the length is zero things are easy:
+ if ( length == 0 ) {
+ ElVal->SetValue("");
+ return;
+ }
+
+ // The elements whose length is bigger than the specified upper bound
+ // are not loaded. Instead we leave a short notice of the offset of
+ // the element content and it's length.
+ if (length > MaxSizeLoadElementValue) {
+ ostringstream s;
+ s << "gdcm::NotLoaded.";
+ s << " Address:" << (long)ElVal->GetOffset();
+ s << " Length:" << ElVal->GetLength();
+ ElVal->SetValue(s.str());
+ return;
+ }
+
+ // When an integer is expected, read and convert the following two or
+ // four bytes properly i.e. as an integer as opposed to a string.
+ if ( IsAnInteger(ElVal) ) {
+ guint32 NewInt;
+ if( length == 2 ) {
+ NewInt = ReadInt16();
+ } else if( length == 4 ) {
+ NewInt = ReadInt32();
+ } else
+ dbg.Error(true, "LoadElementValue: Inconsistency when reading Int.");
+
+ //FIXME: make the following an util fonction
+ ostringstream s;
+ s << NewInt;
+ ElVal->SetValue(s.str());
+ return;
+ }
+
+ // FIXME The exact size should be length if we move to strings or whatever
+ char* NewValue = (char*)malloc(length+1);
+ if( !NewValue) {
+ dbg.Verbose(1, "LoadElementValue: Failed to allocate NewValue");
+ return;
+ }
+ NewValue[length]= 0;
+
+ item_read = fread(NewValue, (size_t)length, (size_t)1, fp);
+ if ( item_read != 1 ) {
+ free(NewValue);
+ dbg.Verbose(1, "gdcmHeader::LoadElementValue","unread element value");
+ ElVal->SetValue("gdcm::UnRead");
+ return;
+ }
+ ElVal->SetValue(NewValue);
}
/**
* @return
*/
void gdcmHeader::LoadElementValueSafe(ElValue * ElVal) {
- long PositionOnEntry = ftell(fp);
- LoadElementValue(ElVal);
- fseek(fp, PositionOnEntry, SEEK_SET);
+ long PositionOnEntry = ftell(fp);
+ LoadElementValue(ElVal);
+ fseek(fp, PositionOnEntry, SEEK_SET);
}
guint16 gdcmHeader::ReadInt16(void) {
- guint16 g;
- size_t item_read;
- item_read = fread (&g, (size_t)2,(size_t)1, fp);
- errno = 0;
- if ( item_read != 1 ) {
- dbg.Verbose(1, "gdcmHeader::ReadInt16", " File read error");
- errno = 1;
- return 0;
- }
- g = SwapShort(g);
- return g;
+ guint16 g;
+ size_t item_read;
+ item_read = fread (&g, (size_t)2,(size_t)1, fp);
+ errno = 0;
+ if ( item_read != 1 ) {
+ dbg.Verbose(1, "gdcmHeader::ReadInt16", " File read error");
+ errno = 1;
+ return 0;
+ }
+ g = SwapShort(g);
+ return g;
}
guint32 gdcmHeader::ReadInt32(void) {
- guint32 g;
- size_t item_read;
- item_read = fread (&g, (size_t)4,(size_t)1, fp);
- errno = 0;
- if ( item_read != 1 ) {
- dbg.Verbose(1, "gdcmHeader::ReadInt32", " File read error");
- errno = 1;
- return 0;
- }
- g = SwapLong(g);
- return g;
+ guint32 g;
+ size_t item_read;
+ item_read = fread (&g, (size_t)4,(size_t)1, fp);
+ errno = 0;
+ if ( item_read != 1 ) {
+ dbg.Verbose(1, "gdcmHeader::ReadInt32", " File read error");
+ errno = 1;
+ return 0;
+ }
+ g = SwapLong(g);
+ return g;
}
/**
* @param Elem element of the underlying DictEntry
*/
ElValue* gdcmHeader::NewElValueByKey(guint16 Group, guint16 Elem) {
- // Find out if the tag we encountered is in the dictionaries:
- gdcmDictEntry * NewTag = GetDictEntryByKey(Group, Elem);
- if (!NewTag)
- NewTag = new gdcmDictEntry(Group, Elem);
-
- ElValue* NewElVal = new ElValue(NewTag);
- if (!NewElVal) {
- dbg.Verbose(1, "gdcmHeader::NewElValueByKey",
- "failed to allocate ElValue");
- return (ElValue*)0;
- }
+ // Find out if the tag we encountered is in the dictionaries:
+ gdcmDictEntry * NewTag = GetDictEntryByKey(Group, Elem);
+ if (!NewTag)
+ NewTag = new gdcmDictEntry(Group, Elem);
+
+ ElValue* NewElVal = new ElValue(NewTag);
+ if (!NewElVal) {
+ dbg.Verbose(1, "gdcmHeader::NewElValueByKey",
+ "failed to allocate ElValue");
+ return (ElValue*)0;
+ }
return NewElVal;
}
return NewElVal;
}
-
/**
* \ingroup gdcmHeader
- * \brief Read the next tag without loading it's value
+ * \brief Read the next tag but WITHOUT loading it's value
* @return On succes the newly created ElValue, NULL on failure.
*/
-
ElValue * gdcmHeader::ReadNextElement(void) {
- guint16 g;
- guint16 n;
- ElValue * NewElVal;
-
- g = ReadInt16();
- n = ReadInt16();
- if (errno == 1)
- // We reached the EOF (or an error occured) and header parsing
- // has to be considered as finished.
- return (ElValue *)0;
-
- NewElVal = NewElValueByKey(g, n);
- FindVR(NewElVal);
- FindLength(NewElVal);
- if (errno == 1)
- // Call it quits
- return (ElValue *)0;
- NewElVal->SetOffset(ftell(fp));
- return NewElVal;
+ guint16 g;
+ guint16 n;
+ ElValue * NewElVal;
+
+ g = ReadInt16();
+ n = ReadInt16();
+ if (errno == 1)
+ // We reached the EOF (or an error occured) and header parsing
+ // has to be considered as finished.
+ return (ElValue *)0;
+
+ NewElVal = NewElValueByKey(g, n);
+ FindVR(NewElVal);
+ FindLength(NewElVal);
+ if (errno == 1)
+ // Call it quits
+ return (ElValue *)0;
+ NewElVal->SetOffset(ftell(fp));
+ return NewElVal;
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Apply some heuristics to predict wether the considered
+ * element value contains/represents an integer or not.
+ * @param ElVal The element value on which to apply the predicate.
+ * @return The result of the heuristical predicate.
+ */
bool gdcmHeader::IsAnInteger(ElValue * ElVal) {
- guint16 group = ElVal->GetGroup();
- guint16 element = ElVal->GetElement();
- string vr = ElVal->GetVR();
- guint32 length = ElVal->GetLength();
-
- // When we have some semantics on the element we just read, and if we
- // a priori know we are dealing with an integer, then we shall be
- // able to swap it's element value properly.
- if ( element == 0 ) { // This is the group length of the group
- if (length == 4)
- return true;
- else
- dbg.Error("gdcmHeader::IsAnInteger",
- "Erroneous Group Length element length.");
- }
-
- if ( group % 2 != 0 )
- // We only have some semantics on documented elements, which are
- // the even ones.
- return false;
-
- if ( (length != 4) && ( length != 2) )
- // Swapping only make sense on integers which are 2 or 4 bytes long.
- return false;
-
- if ( (vr == "UL") || (vr == "US") || (vr == "SL") || (vr == "SS") )
- return true;
-
- if ( (group == 0x0028) && (element == 0x0005) )
- // The "Image Dimensions" tag is retained from ACR/NEMA and contains
- // the number of dimensions of the contained object (1 for Signal,
- // 2 for Image, 3 for Volume, 4 for Sequence).
- return true;
-
- if ( (group == 0x0028) && (element == 0x0200) )
- // This tag is retained from ACR/NEMA
- return true;
-
- return false;
+ guint16 group = ElVal->GetGroup();
+ guint16 element = ElVal->GetElement();
+ string vr = ElVal->GetVR();
+ guint32 length = ElVal->GetLength();
+
+ // When we have some semantics on the element we just read, and if we
+ // a priori know we are dealing with an integer, then we shall be
+ // able to swap it's element value properly.
+ if ( element == 0 ) { // This is the group length of the group
+ if (length == 4)
+ return true;
+ else
+ dbg.Error("gdcmHeader::IsAnInteger",
+ "Erroneous Group Length element length.");
+ }
+
+ if ( group % 2 != 0 )
+ // We only have some semantics on documented elements, which are
+ // the even ones.
+ return false;
+
+ if ( (length != 4) && ( length != 2) )
+ // Swapping only make sense on integers which are 2 or 4 bytes long.
+ return false;
+
+ if ( (vr == "UL") || (vr == "US") || (vr == "SL") || (vr == "SS") )
+ return true;
+
+ if ( (group == 0x0028) && (element == 0x0005) )
+ // The "Image Dimensions" tag is retained from ACR/NEMA and contains
+ // the number of dimensions of the contained object (1 for Signal,
+ // 2 for Image, 3 for Volume, 4 for Sequence).
+ return true;
+
+ if ( (group == 0x0028) && (element == 0x0200) )
+ // This tag is retained from ACR/NEMA
+ return true;
+
+ return false;
}
/**
* \brief Recover the offset (from the beginning of the file) of the pixels.
*/
size_t gdcmHeader::GetPixelOffset(void) {
- // If this file complies with the norm we should encounter the
- // "Image Location" tag (0x0028, 0x0200). This tag contains the
- // the group that contains the pixel data (hence the "Pixel Data"
- // is found by indirection through the "Image Location").
- // Inside the group pointed by "Image Location" the searched element
- // is conventionally the element 0x0010 (when the norm is respected).
- // When the "Image Location" is absent we default to group 0x7fe0.
- guint16 grPixel;
- guint16 numPixel;
- string ImageLocation = GetPubElValByName("Image Location");
- if ( ImageLocation == "gdcm::Unfound" ) {
- grPixel = 0x7fe0;
- } else {
- grPixel = (guint16) atoi( ImageLocation.c_str() );
- }
- if (grPixel != 0x7fe0)
- // FIXME is this still necessary ?
- // Now, this looks like an old dirty fix for Philips imager
- numPixel = 0x1010;
- else
- numPixel = 0x0010;
- ElValue* PixelElement = PubElVals.GetElementByNumber(grPixel, numPixel);
- if (PixelElement)
- return PixelElement->GetOffset();
- else
- return 0;
+ // If this file complies with the norm we should encounter the
+ // "Image Location" tag (0x0028, 0x0200). This tag contains the
+ // the group that contains the pixel data (hence the "Pixel Data"
+ // is found by indirection through the "Image Location").
+ // Inside the group pointed by "Image Location" the searched element
+ // is conventionally the element 0x0010 (when the norm is respected).
+ // When the "Image Location" is absent we default to group 0x7fe0.
+ guint16 grPixel;
+ guint16 numPixel;
+ string ImageLocation = GetPubElValByName("Image Location");
+ if ( ImageLocation == "gdcm::Unfound" ) {
+ grPixel = 0x7fe0;
+ } else {
+ grPixel = (guint16) atoi( ImageLocation.c_str() );
+ }
+ if (grPixel != 0x7fe0)
+ // FIXME is this still necessary ?
+ // Now, this looks like an old dirty fix for Philips imager
+ numPixel = 0x1010;
+ else
+ numPixel = 0x0010;
+ ElValue* PixelElement = PubElVals.GetElementByNumber(grPixel, numPixel);
+ if (PixelElement)
+ return PixelElement->GetOffset();
+ else
+ return 0;
}
/**
* @return Corresponding DictEntry when it exists, NULL otherwise.
*/
gdcmDictEntry * gdcmHeader::GetDictEntryByKey(guint16 group, guint16 element) {
- gdcmDictEntry * found = (gdcmDictEntry*)0;
- if (!RefPubDict && !RefShaDict) {
- dbg.Verbose(0, "FIXME in gdcmHeader::GetDictEntry",
+ gdcmDictEntry * found = (gdcmDictEntry*)0;
+ if (!RefPubDict && !RefShaDict) {
+ dbg.Verbose(0, "FIXME in gdcmHeader::GetDictEntry",
"we SHOULD have a default dictionary");
- }
- if (RefPubDict) {
- found = RefPubDict->GetTagByKey(group, element);
- if (found)
- return found;
- }
- if (RefShaDict) {
- found = RefShaDict->GetTagByKey(group, element);
- if (found)
- return found;
- }
- return found;
+ }
+ if (RefPubDict) {
+ found = RefPubDict->GetTagByKey(group, element);
+ if (found)
+ return found;
+ }
+ if (RefShaDict) {
+ found = RefShaDict->GetTagByKey(group, element);
+ if (found)
+ return found;
+ }
+ return found;
}
/**
* \brief Searches both the public and the shadow dictionary (when they
* exist) for the presence of the DictEntry with given name.
* The public dictionary has precedence on the shadow one.
- * @earam Name name of the searched DictEntry
+ * @param Name name of the searched DictEntry
* @return Corresponding DictEntry when it exists, NULL otherwise.
*/
gdcmDictEntry * gdcmHeader::GetDictEntryByName(string Name) {
- gdcmDictEntry * found = (gdcmDictEntry*)0;
- if (!RefPubDict && !RefShaDict) {
- dbg.Verbose(0, "FIXME in gdcmHeader::GetDictEntry",
+ gdcmDictEntry * found = (gdcmDictEntry*)0;
+ if (!RefPubDict && !RefShaDict) {
+ dbg.Verbose(0, "FIXME in gdcmHeader::GetDictEntry",
"we SHOULD have a default dictionary");
- }
- if (RefPubDict) {
- found = RefPubDict->GetTagByName(Name);
- if (found)
- return found;
- }
- if (RefShaDict) {
- found = RefShaDict->GetTagByName(Name);
- if (found)
- return found;
- }
- return found;
+ }
+ if (RefPubDict) {
+ found = RefPubDict->GetTagByName(Name);
+ if (found)
+ return found;
+ }
+ if (RefShaDict) {
+ found = RefShaDict->GetTagByName(Name);
+ if (found)
+ return found;
+ }
+ return found;
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the public dictionary for element value of
+ * a given tag.
+ * @param group Group of the researched tag.
+ * @param element Element of the researched tag.
+ * @return Corresponding element value when it exists, and the string
+ * "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetPubElValByNumber(guint16 group, guint16 element) {
- return PubElVals.GetElValueByNumber(group, element);
+ return PubElVals.GetElValueByNumber(group, element);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the public dictionary for element value
+ * representation of a given tag.
+ *
+ * Obtaining the VR (Value Representation) might be needed by caller
+ * to convert the string typed content to caller's native type
+ * (think of C++ vs Python). The VR is actually of a higher level
+ * of semantics than just the native C++ type.
+ * @param group Group of the researched tag.
+ * @param element Element of the researched tag.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetPubElValRepByNumber(guint16 group, guint16 element) {
- ElValue* elem = PubElVals.GetElementByNumber(group, element);
- if ( !elem )
- return "gdcm::Unfound";
- return elem->GetVR();
+ ElValue* elem = PubElVals.GetElementByNumber(group, element);
+ if ( !elem )
+ return "gdcm::Unfound";
+ return elem->GetVR();
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the public dictionary for element value of
+ * a given tag.
+ * @param TagName name of the researched element.
+ * @return Corresponding element value when it exists, and the string
+ * "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetPubElValByName(string TagName) {
- return PubElVals.GetElValueByName(TagName);
+ return PubElVals.GetElValueByName(TagName);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the elements parsed with the public dictionary for
+ * the element value representation of a given tag.
+ *
+ * Obtaining the VR (Value Representation) might be needed by caller
+ * to convert the string typed content to caller's native type
+ * (think of C++ vs Python). The VR is actually of a higher level
+ * of semantics than just the native C++ type.
+ * @param TagName name of the researched element.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetPubElValRepByName(string TagName) {
- ElValue* elem = PubElVals.GetElementByName(TagName);
- if ( !elem )
- return "gdcm::Unfound";
- return elem->GetVR();
+ ElValue* elem = PubElVals.GetElementByName(TagName);
+ if ( !elem )
+ return "gdcm::Unfound";
+ return elem->GetVR();
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within elements parsed with the SHADOW dictionary
+ * for the element value of a given tag.
+ * @param group Group of the researched tag.
+ * @param element Element of the researched tag.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetShaElValByNumber(guint16 group, guint16 element) {
- return ShaElVals.GetElValueByNumber(group, element);
+ return ShaElVals.GetElValueByNumber(group, element);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the elements parsed with the SHADOW dictionary
+ * for the element value representation of a given tag.
+ *
+ * Obtaining the VR (Value Representation) might be needed by caller
+ * to convert the string typed content to caller's native type
+ * (think of C++ vs Python). The VR is actually of a higher level
+ * of semantics than just the native C++ type.
+ * @param group Group of the researched tag.
+ * @param element Element of the researched tag.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetShaElValRepByNumber(guint16 group, guint16 element) {
- ElValue* elem = ShaElVals.GetElementByNumber(group, element);
- if ( !elem )
- return "gdcm::Unfound";
- return elem->GetVR();
+ ElValue* elem = ShaElVals.GetElementByNumber(group, element);
+ if ( !elem )
+ return "gdcm::Unfound";
+ return elem->GetVR();
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the elements parsed with the shadow dictionary
+ * for an element value of given tag.
+ * @param TagName name of the researched element.
+ * @return Corresponding element value when it exists, and the string
+ * "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetShaElValByName(string TagName) {
- return ShaElVals.GetElValueByName(TagName);
+ return ShaElVals.GetElValueByName(TagName);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within the elements parsed with the shadow dictionary for
+ * the element value representation of a given tag.
+ *
+ * Obtaining the VR (Value Representation) might be needed by caller
+ * to convert the string typed content to caller's native type
+ * (think of C++ vs Python). The VR is actually of a higher level
+ * of semantics than just the native C++ type.
+ * @param TagName name of the researched element.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetShaElValRepByName(string TagName) {
- ElValue* elem = ShaElVals.GetElementByName(TagName);
- if ( !elem )
- return "gdcm::Unfound";
- return elem->GetVR();
+ ElValue* elem = ShaElVals.GetElementByName(TagName);
+ if ( !elem )
+ return "gdcm::Unfound";
+ return elem->GetVR();
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within elements parsed with the public dictionary
+ * and then within the elements parsed with the shadow dictionary
+ * for the element value of a given tag.
+ * @param group Group of the researched tag.
+ * @param element Element of the researched tag.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetElValByNumber(guint16 group, guint16 element) {
- string pub = GetPubElValByNumber(group, element);
- if (pub.length())
- return pub;
- return GetShaElValByNumber(group, element);
+ string pub = GetPubElValByNumber(group, element);
+ if (pub.length())
+ return pub;
+ return GetShaElValByNumber(group, element);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within elements parsed with the public dictionary
+ * and then within the elements parsed with the shadow dictionary
+ * for the element value representation of a given tag.
+ *
+ * Obtaining the VR (Value Representation) might be needed by caller
+ * to convert the string typed content to caller's native type
+ * (think of C++ vs Python). The VR is actually of a higher level
+ * of semantics than just the native C++ type.
+ * @param group Group of the researched tag.
+ * @param element Element of the researched tag.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetElValRepByNumber(guint16 group, guint16 element) {
- string pub = GetPubElValRepByNumber(group, element);
- if (pub.length())
- return pub;
- return GetShaElValRepByNumber(group, element);
+ string pub = GetPubElValRepByNumber(group, element);
+ if (pub.length())
+ return pub;
+ return GetShaElValRepByNumber(group, element);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within elements parsed with the public dictionary
+ * and then within the elements parsed with the shadow dictionary
+ * for the element value of a given tag.
+ * @param TagName name of the researched element.
+ * @return Corresponding element value when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetElValByName(string TagName) {
- string pub = GetPubElValByName(TagName);
- if (pub.length())
- return pub;
- return GetShaElValByName(TagName);
+ string pub = GetPubElValByName(TagName);
+ if (pub.length())
+ return pub;
+ return GetShaElValByName(TagName);
}
+/**
+ * \ingroup gdcmHeader
+ * \brief Searches within elements parsed with the public dictionary
+ * and then within the elements parsed with the shadow dictionary
+ * for the element value representation of a given tag.
+ *
+ * Obtaining the VR (Value Representation) might be needed by caller
+ * to convert the string typed content to caller's native type
+ * (think of C++ vs Python). The VR is actually of a higher level
+ * of semantics than just the native C++ type.
+ * @param TagName name of the researched element.
+ * @return Corresponding element value representation when it exists,
+ * and the string "gdcm::Unfound" otherwise.
+ */
string gdcmHeader::GetElValRepByName(string TagName) {
- string pub = GetPubElValRepByName(TagName);
- if (pub.length())
- return pub;
- return GetShaElValRepByName(TagName);
+ string pub = GetPubElValRepByName(TagName);
+ if (pub.length())
+ return pub;
+ return GetShaElValRepByName(TagName);
}
/**
int gdcmHeader::SetPubElValByNumber(string content, guint16 group,
guint16 element)
{
- //CLEANME TagKey key = gdcmDictEntry::TranslateToKey(group, element);
- //CLEANME PubElVals.tagHt[key]->SetValue(content);
- return ( PubElVals.SetElValueByNumber (content, group, element) );
+ return ( PubElVals.SetElValueByNumber (content, group, element) );
}
/**
* @param TagName name of the tag to be modified
*/
int gdcmHeader::SetPubElValByName(string content, string TagName) {
- //CLEANME TagKey key = gdcmDictEntry::TranslateToKey(group, element);
- //CLEANME PubElVals.tagHt[key]->SetValue(content);
- return ( PubElVals.SetElValueByName (content, TagName) );
+ return ( PubElVals.SetElValueByName (content, TagName) );
}
/**
int gdcmHeader::SetShaElValByNumber(string content,
guint16 group, guint16 element)
{
- return ( ShaElVals.SetElValueByNumber (content, group, element) );
+ return ( ShaElVals.SetElValueByNumber (content, group, element) );
}
/**
* @param TagName name of the tag to be modified
*/
int gdcmHeader::SetShaElValByName(string content, string TagName) {
- return ( ShaElVals.SetElValueByName (content, TagName) );
+ return ( ShaElVals.SetElValueByName (content, TagName) );
}
/**
* \brief Parses the header of the file but WITHOUT loading element values.
*/
void gdcmHeader::ParseHeader(bool exception_on_error) throw(gdcmFormatError) {
- ElValue * newElValue = (ElValue *)0;
-
- rewind(fp);
- CheckSwap();
- while ( (newElValue = ReadNextElement()) ) {
- SkipElementValue(newElValue);
- PubElVals.Add(newElValue);
- }
+ ElValue * newElValue = (ElValue *)0;
+
+ rewind(fp);
+ CheckSwap();
+ while ( (newElValue = ReadNextElement()) ) {
+ SkipElementValue(newElValue);
+ PubElVals.Add(newElValue);
+ }
}
/**
* the ones of the official DICOM fields Rows, Columns and Planes.
*/
void gdcmHeader::AddAndDefaultElements(void) {
- ElValue* NewEntry = (ElValue*)0;
+ ElValue* NewEntry = (ElValue*)0;
- NewEntry = NewElValueByName("gdcmXSize");
- NewEntry->SetValue(GetElValByName("Rows"));
- PubElVals.Add(NewEntry);
+ NewEntry = NewElValueByName("gdcmXSize");
+ NewEntry->SetValue(GetElValByName("Rows"));
+ PubElVals.Add(NewEntry);
- NewEntry = NewElValueByName("gdcmYSize");
- NewEntry->SetValue(GetElValByName("Columns"));
- PubElVals.Add(NewEntry);
+ NewEntry = NewElValueByName("gdcmYSize");
+ NewEntry->SetValue(GetElValByName("Columns"));
+ PubElVals.Add(NewEntry);
- NewEntry = NewElValueByName("gdcmZSize");
- NewEntry->SetValue(GetElValByName("Planes"));
- PubElVals.Add(NewEntry);
+ NewEntry = NewElValueByName("gdcmZSize");
+ NewEntry->SetValue(GetElValByName("Planes"));
+ PubElVals.Add(NewEntry);
}
/**
* public tag based hash table.
*/
void gdcmHeader::LoadElements(void) {
- rewind(fp);
- TagElValueHT ht = PubElVals.GetTagHt();
- for (TagElValueHT::iterator tag = ht.begin(); tag != ht.end(); ++tag) {
- LoadElementValue(tag->second);
- }
+ rewind(fp);
+ TagElValueHT ht = PubElVals.GetTagHt();
+ for (TagElValueHT::iterator tag = ht.begin(); tag != ht.end(); ++tag) {
+ LoadElementValue(tag->second);
+ }
}
void gdcmHeader::PrintPubElVal(ostream & os) {
- PubElVals.Print(os);
+ PubElVals.Print(os);
}
void gdcmHeader::PrintPubDict(ostream & os) {
- RefPubDict->Print(os);
+ RefPubDict->Print(os);
}
projects / gdcm.git / commitdiff