3 //This is needed when compiling in debug mode
5 // 'type' : forcing value to bool 'true' or 'false' (performance warning)
6 //#pragma warning ( disable : 4800 )
7 // 'identifier' : class 'type' needs to have dll-interface to be used by
8 // clients of class 'type2'
9 #pragma warning ( disable : 4251 )
10 // 'identifier' : identifier was truncated to 'number' characters in the
12 #pragma warning ( disable : 4786 )
17 #include "iddcmjpeg.h" // for the 'LibIDO' Jpeg LossLess
19 #define str2num(str, typeNum) *((typeNum *)(str))
21 /////////////////////////////////////////////////////////////////
24 * \brief Parse pixel data from disk and *prints* the result
25 * \ For multi-fragment Jpeg/Rle files checking purpose *only*
26 * \ Allows to 'see' if the file *does* conform
27 * \ (some of them do not)
28 * \ with Dicom Part 3, Annex A (PS 3.5-2003, page 58, page 85)
31 bool gdcmFile::ParsePixelData(void) {
36 if ( fseek(fp, GetPixelOffset(), SEEK_SET) == -1 ) {
42 IsImplicitVRLittleEndianTransferSyntax() ||
43 IsExplicitVRLittleEndianTransferSyntax() ||
44 IsExplicitVRBigEndianTransferSyntax() ||
45 IsDeflatedExplicitVRLittleEndianTransferSyntax() ) {
47 printf ("gdcmFile::ParsePixelData : non JPEG/RLE File\n");
52 std::string str_nb=gdcmHeader::GetPubElValByNumber(0x0028,0x0100);
53 if (str_nb == GDCM_UNFOUND ) {
56 nb = atoi(str_nb.c_str() );
61 int taille = GetXSize() * GetYSize() * GetSamplesPerPixel();
63 printf ("Checking the Dicom-encapsulated Jpeg/RLE Pixels\n");
65 guint16 ItemTagGr,ItemTagEl;
68 char * destination = NULL;
70 // -------------------- for Parsing : Position on begining of Jpeg/RLE Pixels
72 if( !IsRLELossLessTransferSyntax()) {
76 std::cout << "JPEG image" << std::endl;
78 fread(&ItemTagGr,2,1,fp); //Reading (fffe):Basic Offset Table Item Tag Gr
79 fread(&ItemTagEl,2,1,fp); //Reading (e000):Basic Offset Table Item Tag El
81 ItemTagGr=SwapShort(ItemTagGr);
82 ItemTagEl=SwapShort(ItemTagEl);
84 printf ("at %x : ItemTag (should be fffe,e000): %04x,%04x\n",
85 ftellRes,ItemTagGr,ItemTagEl );
89 ln=SwapLong(ln); // Basic Offset Table Item Lentgh
90 printf("at %x : Basic Offset Table Item Lentgh (??) %d x(%08x)\n",
93 // What is it used for ??
94 char * BasicOffsetTableItemValue= (char *)malloc(ln+1);
95 fread(BasicOffsetTableItemValue,ln,1,fp);
97 for (int i=0;i<ln;i+=4){
98 a=str2num(&BasicOffsetTableItemValue[i],guint32);
99 printf(" x(%08x) %d\n",a,a);
104 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
105 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
107 ItemTagGr=SwapShort(ItemTagGr);
108 ItemTagEl=SwapShort(ItemTagEl);
110 printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
111 ftellRes,ItemTagGr,ItemTagEl );
113 while ( ( ItemTagGr==0xfffe) && (ItemTagEl!=0xe0dd) ) { // Parse fragments
118 ln=SwapLong(ln); // length
119 printf(" at %x : fragment length %d x(%08x)\n",
122 // destination += taille * nBytes; // location in user's memory
123 //printf (" Destination will be x(%x) = %d \n",
124 // destination,destination );
126 // ------------------------
127 fseek(fp,ln,SEEK_CUR); // skipping (not reading) fragment pixels
128 // ------------------------
131 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
132 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
134 ItemTagGr=SwapShort(ItemTagGr);
135 ItemTagEl=SwapShort(ItemTagEl);
137 printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
138 ftellRes,ItemTagGr,ItemTagEl );
145 std::cout << "RLE image" << std::endl;
146 long RleSegmentLength[15],fragmentLength;
147 guint32 nbRleSegments;
148 guint32 RleSegmentOffsetTable[15];
150 // Basic Offset Table with Item Value
152 fread(&ItemTagGr,2,1,fp); //Reading (fffe):Basic Offset Table Item Tag Gr
153 fread(&ItemTagEl,2,1,fp); //Reading (e000):Basic Offset Table Item Tag El
155 ItemTagGr=SwapShort(ItemTagGr);
156 ItemTagEl=SwapShort(ItemTagEl);
158 printf ("at %x : ItemTag (should be fffe,e000): %04x,%04x\n",
159 ftellRes,ItemTagGr,ItemTagEl );
164 ln=SwapLong(ln); // Basic Offset Table Item Lentgh
165 printf("at %x : Basic Offset Table Item Lentgh (??) %d x(%08x)\n",
168 // What is it used for ??
169 char * BasicOffsetTableItemValue= (char *)malloc(ln+1);
170 fread(BasicOffsetTableItemValue,ln,1,fp);
172 for (int i=0;i<ln;i+=4){
173 a=str2num(&BasicOffsetTableItemValue[i],guint32);
174 printf(" x(%08x) %d\n",a,a);
179 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
180 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
182 ItemTagGr=SwapShort(ItemTagGr);
183 ItemTagEl=SwapShort(ItemTagEl);
185 printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
186 ftellRes,ItemTagGr,ItemTagEl );
188 // while 'Sequence Delimiter Item' (fffe,e0dd) not found
189 while ( ( ItemTagGr == 0xfffe) && (ItemTagEl != 0xe0dd) ) {
190 // Parse fragments of the current Fragment (Frame)
192 fread(&fragmentLength,4,1,fp);
194 fragmentLength=SwapLong(fragmentLength); // length
195 printf(" at %x : 'fragment' length %d x(%08x)\n",
196 ftellRes, fragmentLength,fragmentLength);
198 //------------------ scanning (not reading) fragment pixels
200 fread(&nbRleSegments,4,1,fp); // Reading : Number of RLE Segments
202 nbRleSegments=SwapLong(nbRleSegments);
203 printf(" Nb of RLE Segments : %d\n",nbRleSegments);
205 for(int k=1; k<=15; k++) { // Reading RLE Segments Offset Table
207 fread(&RleSegmentOffsetTable[k],4,1,fp);
209 RleSegmentOffsetTable[k]=SwapLong(RleSegmentOffsetTable[k]);
210 printf(" at : %x Offset Segment %d : %d (%x)\n",
211 ftellRes,k,RleSegmentOffsetTable[k],
212 RleSegmentOffsetTable[k]);
215 if (nbRleSegments>1) { // skipping (not reading) RLE Segments
216 for(int k=1; k<=nbRleSegments-1; k++) {
217 RleSegmentLength[k]= RleSegmentOffsetTable[k+1]
218 - RleSegmentOffsetTable[k];
220 printf (" Segment %d : Length = %d x(%x) Start at %x\n",
221 k,RleSegmentLength[k],RleSegmentLength[k], ftellRes);
222 fseek(fp,RleSegmentLength[k],SEEK_CUR);
225 RleSegmentLength[nbRleSegments]= fragmentLength
226 - RleSegmentOffsetTable[nbRleSegments];
228 printf (" Segment %d : Length = %d x(%x) Start at %x\n",
229 nbRleSegments,RleSegmentLength[nbRleSegments],
230 RleSegmentLength[nbRleSegments],ftellRes);
232 fseek(fp,RleSegmentLength[nbRleSegments],SEEK_CUR);
234 // ------------------ end of scanning fragment pixels
237 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
238 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
240 ItemTagGr=SwapShort(ItemTagGr);
241 ItemTagEl=SwapShort(ItemTagEl);
243 printf ("at %x : ItemTag (should be fffe,e000 or e0dd): %04x,%04x\n",
244 ftellRes,ItemTagGr,ItemTagEl );