-
-
-void gdcmDocument::Parse7FE0 (void) {
-
- gdcmDocEntry* Element = GetDocEntryByNumber(0x0002, 0x0010);
- if ( !Element )
- return;
-
- std::string Transfer = ((gdcmValEntry *)Element)->GetValue();
- if (Transfer == UI1_2_840_10008_1_2 )
- return;
- if ( Transfer == UI1_2_840_10008_1_2_1 )
- return;
- if ( Transfer == UI1_2_840_10008_1_2_2 ) //1.2.2 ??? A verifier !
- return;
- if ( Transfer == UI1_2_840_10008_1_2_1_99 )
- return;
-
- int nb;
- std::string str_nb=GetEntryByNumber(0x0028,0x0100);
- if (str_nb == GDCM_UNFOUND ) {
- nb = 16;
- } else {
- nb = atoi(str_nb.c_str() );
- if (nb == 12) nb =16;
- }
-
- guint16 ItemTagGr,ItemTagEl;
- int ln;
- long ftellRes;
-
- // -------------------- for Parsing : Position on begining of Jpeg/RLE Pixels
-
- if ( Transfer != UI1_2_840_10008_1_2_5 ) { // !RLELossLessTransferSyntax
- // 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(GetSwapCode()) {
- ItemTagGr=SwapShort(ItemTagGr);
- ItemTagEl=SwapShort(ItemTagEl);
- }
- ftellRes=ftell(fp);
- fread(&ln,4,1,fp);
- if(GetSwapCode())
- ln=SwapLong(ln); // Basic Offset Table Item Length
-
- if (ln != 0) {
- char * BasicOffsetTableItemValue= new char[ln+1];
- fread(BasicOffsetTableItemValue,ln,1,fp);
- guint32 a;
- for (int i=0;i<ln;i+=4){
- a=str2num(&BasicOffsetTableItemValue[i],guint32);
- }
- }
-
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
- fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
- if(GetSwapCode()) {
- ItemTagGr=SwapShort(ItemTagGr);
- ItemTagEl=SwapShort(ItemTagEl);
- }
-
- while ( ( ItemTagGr==0xfffe) && (ItemTagEl!=0xe0dd) ) { // Parse fragments
-
- ftellRes=ftell(fp);
- fread(&ln,4,1,fp);
- if(GetSwapCode())
- ln=SwapLong(ln); // length
- // ------------------------
- 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(GetSwapCode()) {
- ItemTagGr=SwapShort(ItemTagGr);
- ItemTagEl=SwapShort(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(GetSwapCode()) {
- ItemTagGr=SwapShort(ItemTagGr);
- ItemTagEl=SwapShort(ItemTagEl);
- }
- // Item Length
- ftellRes=ftell(fp);
- fread(&ln,4,1,fp);
- if(GetSwapCode())
- ln=SwapLong(ln); // Basic Offset Table Item Length
- if (ln != 0) {
- // What is it used for ??
- char * BasicOffsetTableItemValue= new char[ln+1];
- fread(BasicOffsetTableItemValue,ln,1,fp);
- guint32 a;
- for (int i=0;i<ln;i+=4){
- a=str2num(&BasicOffsetTableItemValue[i],guint32);
- }
- }
-
- ftellRes=ftell(fp);
- fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
- fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
- if(GetSwapCode()) {
- ItemTagGr=SwapShort(ItemTagGr);
- ItemTagEl=SwapShort(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(GetSwapCode())
- fragmentLength=SwapLong(fragmentLength); // length
-
- //------------------ scanning (not reading) fragment pixels
-
- fread(&nbRleSegments,4,1,fp); // Reading : Number of RLE Segments
- if(GetSwapCode())
- nbRleSegments=SwapLong(nbRleSegments);
-
- for(int k=1; k<=15; k++) { // Reading RLE Segments Offset Table
- ftellRes=ftell(fp);
- fread(&RleSegmentOffsetTable[k],4,1,fp);
- if(GetSwapCode())
- RleSegmentOffsetTable[k]=SwapLong(RleSegmentOffsetTable[k]);
- }
-
- if (nbRleSegments>1) { // skipping (not reading) RLE Segments
- for(unsigned int k=1; k<=nbRleSegments-1; k++) {
- RleSegmentLength[k]= RleSegmentOffsetTable[k+1]
- - RleSegmentOffsetTable[k];
- ftellRes=ftell(fp);
-
- fseek(fp,RleSegmentLength[k],SEEK_CUR);
- }
- }
- RleSegmentLength[nbRleSegments]= fragmentLength
- - RleSegmentOffsetTable[nbRleSegments];
- ftellRes=ftell(fp);
- 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(GetSwapCode()) {
- ItemTagGr=SwapShort(ItemTagGr);
- ItemTagEl=SwapShort(ItemTagEl);
- }
- }