+++ /dev/null
-// gdcmParse.cxx
-//-----------------------------------------------------------------------------
-//This is needed when compiling in debug mode
-#ifdef _MSC_VER
-// 'type' : forcing value to bool 'true' or 'false' (performance warning)
-//#pragma warning ( disable : 4800 )
-// 'identifier' : class 'type' needs to have dll-interface to be used by
-// clients of class 'type2'
-#pragma warning ( disable : 4251 )
-// 'identifier' : identifier was truncated to 'number' characters in the
-// debug information
-#pragma warning ( disable : 4786 )
-#endif //_MSC_VER
-
-#include "gdcmFile.h"
-#include "gdcmUtil.h"
-
-#define str2num(str, typeNum) *((typeNum *)(str))
-
-//-----------------------------------------------------------------------------
-/**
- * \ingroup gdcmFile
- * \brief Parse pixel data from disk and *prints* the result
- * \ For multi-fragment Jpeg/Rle files checking purpose *only*
- * \ Allows to 'see' if the file *does* conform
- * \ (some of them do not)
- * \ with Dicom Part 3, Annex A (PS 3.5-2003, page 58, page 85)
- *
- */
-bool gdcmFile::ParsePixelData(void) {
-// DO NOT remove the printf s.
-// The ONLY purpose of this method is to PRINT the content
- FILE *fp;
-
- if ( !(fp=Header->OpenFile()))
- return false;
-
- if ( fseek(fp, Header->GetPixelOffset(), SEEK_SET) == -1 ) {
- Header->CloseFile();
- return false;
- }
-
- if ( !Header->IsDicomV3() ||
- Header->IsImplicitVRLittleEndianTransferSyntax() ||
- Header->IsExplicitVRLittleEndianTransferSyntax() ||
- Header->IsExplicitVRBigEndianTransferSyntax() ||
- Header->IsDeflatedExplicitVRLittleEndianTransferSyntax() ) {
-
- printf ("gdcmFile::ParsePixelData : non JPEG/RLE File\n");
- return false;
- }
-
- int nb;
- std::string str_nb=Header->GetEntryByNumber(0x0028,0x0100);
- if (str_nb == GDCM_UNFOUND ) {
- nb = 16;
- } else {
- nb = atoi(str_nb.c_str() );
- if (nb == 12) nb =16;
- }
- int nBytes= nb/8;
-
- int taille = Header->GetXSize() * Header->GetYSize() * Header->GetSamplesPerPixel();
-
- printf ("Checking the Dicom-encapsulated Jpeg/RLE Pixels\n");
-
- guint16 ItemTagGr,ItemTagEl;
- int ln;
- long ftellRes;
- char * destination = NULL;
-
- // -------------------- for Parsing : Position on begining of Jpeg/RLE Pixels
-
- if( !Header->IsRLELossLessTransferSyntax()) {
-
- // JPEG Image
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); //Reading (fffe):Basic Offset Table Item Tag Gr
- fread(&ItemTagEl,2,1,fp); //Reading (e000):Basic Offset Table Item Tag El
- if(Header->GetSwapCode()) {
- ItemTagGr=Header->SwapShort(ItemTagGr);
- ItemTagEl=Header->SwapShort(ItemTagEl);
- }
- printf ("at %x : ItemTag (should be fffe,e000): %04x,%04x\n",
- ftellRes,ItemTagGr,ItemTagEl );
- ftellRes=ftell(fp);
- fread(&ln,4,1,fp);
- if(Header->GetSwapCode())
- ln=Header->SwapLong(ln); // Basic Offset Table Item Lentgh
- printf("at %x : Basic Offset Table Item Lentgh (??) %d x(%08x)\n",
- ftellRes,ln,ln);
- if (ln != 0) {
- // What is it used for ??
- char * BasicOffsetTableItemValue= (char *)malloc(ln+1);
- fread(BasicOffsetTableItemValue,ln,1,fp);
- guint32 a;
- for (int i=0;i<ln;i+=4){
- a=str2num(&BasicOffsetTableItemValue[i],guint32);
- printf(" x(%08x) %d\n",a,a);
- }
- }
-
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
- fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
- if(Header->GetSwapCode()) {
- ItemTagGr=Header->SwapShort(ItemTagGr);
- ItemTagEl=Header->SwapShort(ItemTagEl);
- }
- printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
- ftellRes,ItemTagGr,ItemTagEl );
-
- while ( ( ItemTagGr==0xfffe) && (ItemTagEl!=0xe0dd) ) { // Parse fragments
-
- ftellRes=ftell(fp);
- fread(&ln,4,1,fp);
- if(Header->GetSwapCode())
- ln=Header->SwapLong(ln); // length
- printf(" at %x : fragment length %d x(%08x)\n",
- ftellRes, ln,ln);
-
- // destination += taille * nBytes; // location in user's memory
- //printf (" Destination will be x(%x) = %d \n",
- // destination,destination );
-
- // ------------------------
- fseek(fp,ln,SEEK_CUR); // skipping (not reading) fragment pixels
- // ------------------------
-
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
- fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
- if(Header->GetSwapCode()) {
- ItemTagGr=Header->SwapShort(ItemTagGr);
- ItemTagEl=Header->SwapShort(ItemTagEl);
- }
- printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
- ftellRes,ItemTagGr,ItemTagEl );
- }
-
- } else {
-
- // RLE Image
- long RleSegmentLength[15],fragmentLength;
- guint32 nbRleSegments;
- guint32 RleSegmentOffsetTable[15];
- ftellRes=ftell(fp);
- // Basic Offset Table with Item Value
- // Item Tag
- fread(&ItemTagGr,2,1,fp); //Reading (fffe):Basic Offset Table Item Tag Gr
- fread(&ItemTagEl,2,1,fp); //Reading (e000):Basic Offset Table Item Tag El
- if(Header->GetSwapCode()) {
- ItemTagGr=Header->SwapShort(ItemTagGr);
- ItemTagEl=Header->SwapShort(ItemTagEl);
- }
- printf ("at %x : ItemTag (should be fffe,e000): %04x,%04x\n",
- ftellRes,ItemTagGr,ItemTagEl );
- // Item Length
- ftellRes=ftell(fp);
- fread(&ln,4,1,fp);
- if(Header->GetSwapCode())
- ln=Header->SwapLong(ln); // Basic Offset Table Item Lentgh
- printf("at %x : Basic Offset Table Item Lentgh (??) %d x(%08x)\n",
- ftellRes,ln,ln);
- if (ln != 0) {
- // What is it used for ??
- char * BasicOffsetTableItemValue= (char *)malloc(ln+1);
- fread(BasicOffsetTableItemValue,ln,1,fp);
- guint32 a;
- for (int i=0;i<ln;i+=4){
- a=str2num(&BasicOffsetTableItemValue[i],guint32);
- printf(" x(%08x) %d\n",a,a);
- }
- }
-
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
- fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
- if(Header->GetSwapCode()) {
- ItemTagGr=Header->SwapShort(ItemTagGr);
- ItemTagEl=Header->SwapShort(ItemTagEl);
- }
- printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
- ftellRes,ItemTagGr,ItemTagEl );
-
- // while 'Sequence Delimiter Item' (fffe,e0dd) not found
- while ( ( ItemTagGr == 0xfffe) && (ItemTagEl != 0xe0dd) ) {
- // Parse fragments of the current Fragment (Frame)
- ftellRes=ftell(fp);
- fread(&fragmentLength,4,1,fp);
- if(Header->GetSwapCode())
- fragmentLength=Header->SwapLong(fragmentLength); // length
- printf(" at %x : 'fragment' length %d x(%08x)\n",
- ftellRes, fragmentLength,fragmentLength);
-
- //------------------ scanning (not reading) fragment pixels
-
- fread(&nbRleSegments,4,1,fp); // Reading : Number of RLE Segments
- if(Header->GetSwapCode())
- nbRleSegments=Header->SwapLong(nbRleSegments);
- printf(" Nb of RLE Segments : %d\n",nbRleSegments);
-
- for(int k=1; k<=15; k++) { // Reading RLE Segments Offset Table
- ftellRes=ftell(fp);
- fread(&RleSegmentOffsetTable[k],4,1,fp);
- if(Header->GetSwapCode())
- RleSegmentOffsetTable[k]=Header->SwapLong(RleSegmentOffsetTable[k]);
- printf(" at : %x Offset Segment %d : %d (%x)\n",
- ftellRes,k,RleSegmentOffsetTable[k],
- RleSegmentOffsetTable[k]);
- }
-
- if (nbRleSegments>1) { // skipping (not reading) RLE Segments
- for(int k=1; k<=nbRleSegments-1; k++) {
- RleSegmentLength[k]= RleSegmentOffsetTable[k+1]
- - RleSegmentOffsetTable[k];
- ftellRes=ftell(fp);
- printf (" Segment %d : Length = %d x(%x) Start at %x\n",
- k,RleSegmentLength[k],RleSegmentLength[k], ftellRes);
- fseek(fp,RleSegmentLength[k],SEEK_CUR);
- }
- }
- RleSegmentLength[nbRleSegments]= fragmentLength
- - RleSegmentOffsetTable[nbRleSegments];
- ftellRes=ftell(fp);
- printf (" Segment %d : Length = %d x(%x) Start at %x\n",
- nbRleSegments,RleSegmentLength[nbRleSegments],
- RleSegmentLength[nbRleSegments],ftellRes);
-
- fseek(fp,RleSegmentLength[nbRleSegments],SEEK_CUR);
-
- // ------------------ end of scanning fragment pixels
-
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
- fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
- if(Header->GetSwapCode()) {
- ItemTagGr=Header->SwapShort(ItemTagGr);
- ItemTagEl=Header->SwapShort(ItemTagEl);
- }
- printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
- ftellRes,ItemTagGr,ItemTagEl );
- }
- }
- return true;
-}
-
-//-----------------------------------------------------------------------------
projects / gdcm.git / commitdiff