5 #include "iddcmjpeg.h" // for the 'LibIDO' Jpeg LossLess
7 /////////////////////////////////////////////////////////////////
10 * \brief Constructor dedicated to writing a new DICOMV3 part10 compliant
11 * file (see SetFileName, SetDcmTag and Write)
12 * Opens (in read only and when possible) an existing file and checks
13 * for DICOM compliance. Returns NULL on failure.
14 * \Note the in-memory representation of all available tags found in
15 * the DICOM header is post-poned to first header information access.
16 * This avoid a double parsing of public part of the header when
17 * one sets an a posteriori shadow dictionary (efficiency can be
18 * seen as a side effect).
20 * @param filename file to be opened for parsing
25 gdcmFile::gdcmFile(std::string & filename)
26 :gdcmHeader(filename.c_str())
28 SetPixelDataSizeFromHeader();
31 gdcmFile::gdcmFile(const char * filename)
34 SetPixelDataSizeFromHeader();
39 * \brief calcule la longueur (in bytes) A ALLOUER pour recevoir les
41 * ou DES images dans le cas d'un multiframe
42 * ATTENTION : il ne s'agit PAS de la longueur du groupe des Pixels
43 * (dans le cas d'images compressees, elle n'a pas de sens).
45 * @return longueur a allouer
47 void gdcmFile::SetPixelDataSizeFromHeader(void) {
51 str_nb=gdcmHeader::GetPubElValByNumber(0x0028,0x0100);
52 if (str_nb == GDCM_UNFOUND ) {
55 nb = atoi(str_nb.c_str() );
58 lgrTotale = GetXSize() * GetYSize() * GetZSize() * (nb/8)* GetSamplesPerPixel();
59 std::string str_PhotometricInterpretation = gdcmHeader::GetPubElValByNumber(0x0028,0x0004);
60 if ( str_PhotometricInterpretation == "PALETTE COLOR " ) {
64 // see PS 3.3-2003 : C.7.6.3.2.1
74 // YBR_FULL_422 (no LUT, no Palette)
80 // ex : gdcm-US-ALOKA-16.dcm
81 // 0028|1221 [OW] [Segmented Red Palette Color Lookup Table Data]
82 // 0028|1222 [OW] [Segmented Green Palette Color Lookup Table Data]
83 // 0028|1223 [OW] [Segmented Blue Palette Color Lookup Table Data]
85 // ex : US-PAL-8-10x-echo.dcm, 8BitsRunLengthColor.dcm
86 // 0028|1201 [OW] [Red Palette Color Lookup Table Data]
87 // 0028|1202 [OW] [Green Palette Color Lookup Table Data]
88 // 0028|1203 [OW] [Blue Palette Color Lookup Table Data]
90 // ex : OT-PAL-8-face.dcm
91 // 0028|1201 [US] [Red Palette Color Lookup Table Data]
92 // 0028|1202 [US] [Green Palette Color Lookup Table Data]
93 // 0028|1203 [US] [Blue Palette Color Lookup Table Data]
97 /////////////////////////////////////////////////////////////////
100 * \brief Returns the size (in bytes) of required memory to hold
101 * the pixel data represented in this file.
102 * @return The size of pixel data in bytes.
105 size_t gdcmFile::GetImageDataSize(void) {
110 /////////////////////////////////////////////////////////////////
113 * \brief Read pixel data from disk (optionaly decompressing) into the
114 * caller specified memory location.
115 * @param destination where the pixel data should be stored.
118 bool gdcmFile::ReadPixelData(void* destination) {
123 if ( fseek(fp, GetPixelOffset(), SEEK_SET) == -1 ) {
128 // ------------------------- Uncompressed File
131 IsImplicitVRLittleEndianTransferSyntax() ||
132 IsExplicitVRLittleEndianTransferSyntax() ||
133 IsExplicitVRBigEndianTransferSyntax() ||
134 IsDeflatedExplicitVRLittleEndianTransferSyntax() ) {
136 size_t ItemRead = fread(destination, lgrTotale, 1, fp);
137 if ( ItemRead != 1 ) {
146 // ------------------------ Compressed File .
149 std::string str_nb=gdcmHeader::GetPubElValByNumber(0x0028,0x0100);
150 if (str_nb == GDCM_UNFOUND ) {
153 nb = atoi(str_nb.c_str() );
154 if (nb == 12) nb =16;
158 int taille = GetXSize() * GetYSize() * GetSamplesPerPixel();
161 // ------------------------------- JPEG LossLess : call to Jpeg Libido
163 if (IsJPEGLossless() /*&& GetZSize() == 1*/) {
165 int ln; // Position on begining of Jpeg Pixels
166 fseek(fp,4,SEEK_CUR); // skipping (fffe,e000) : Basic Offset Table Item
169 ln=SwapLong(ln); // Item length
170 fseek(fp,ln,SEEK_CUR); // skipping Basic Offset Table ('ln' bytes)
171 fseek(fp,4,SEEK_CUR); // skipping (fffe,e000) : First fragment Item Tag
172 fread(&ln,4,1,fp); // First fragment length (just to know)
176 ClbJpeg* jpg = _IdDcmJpegRead(fp); // TODO : find a 'full' one.
177 // (We use the LibIDO one :-(
182 int * dataJpg = jpg->DataImg;
187 unsigned short *dest = (unsigned short *)destination;
188 for (int i=0; i<taille; i++) {
189 *((unsigned char *)dest+i) = *(dataJpg +i);
196 unsigned short *dest = (unsigned short *)destination;
197 for (int i=0; i<taille; i++) {
198 *((unsigned short *)dest+i) = *(dataJpg +i);
203 _IdDcmJpegFree (jpg);
207 // ------------------------------- RLE
209 if (gdcmHeader::IsRLELossLessTransferSyntax()) {
210 int res = (bool)gdcm_read_RLE_file (destination);
214 // ------------------------------- JPEG Lossy : call to IJG 6b
216 long fragmentBegining; // for ftell, fseek
217 bool b = gdcmHeader::IsJPEG2000();
220 guint16 ItemTagGr,ItemTagEl;
221 int ln; // Position on begining of Jpeg Pixels
223 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
224 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
226 ItemTagGr=SwapShort(ItemTagGr);
227 ItemTagEl=SwapShort(ItemTagEl);
231 ln=SwapLong(ln); // Basic Offset Table Item length
234 // What is it used for ?!?
235 char *BasicOffsetTableItemValue = (char *)malloc(ln+1);
236 fread(BasicOffsetTableItemValue,ln,1,fp);
239 // first Fragment initialisation
240 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
241 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
243 ItemTagGr=SwapShort(ItemTagGr);
244 ItemTagEl=SwapShort(ItemTagEl);
247 // parsing fragments until Sequence Delim. Tag found
248 //unsigned short *dest = (unsigned short *)destination;
250 while ( ( ItemTagGr == 0xfffe) && (ItemTagEl != 0xe0dd) ) {
253 ln=SwapLong(ln); // Fragment Item length
255 // FIXME : multi fragments
256 fragmentBegining=ftell(fp);
260 res = (bool)gdcm_read_JPEG2000_file (destination); // Reading Fragment pixels
262 else if (IsJPEGLossless()) {
263 // ------------- call to LibIDO Jpeg for each Frame/fragment
265 // Warning : Works only if there is one fragment per frame
266 // (Or a single fragment for the multiframe file)
267 ClbJpeg* jpg = _IdDcmJpegRead(fp); // TODO : find a 'full' one.
268 // (We use the LibIDO one :-(
273 int * dataJpg = jpg->DataImg;
274 unsigned short *dest = (unsigned short *)destination;
278 for (int i=0; i<taille; i++) {
279 *((unsigned char *)dest+i) = *(dataJpg +i);
286 for (int i=0; i<taille; i++) {
287 *((unsigned short *)dest+i) = *(dataJpg +i);
292 _IdDcmJpegFree (jpg);
294 } // ------------------------------------- endif (IsJPEGLossless())
297 if (GetBitsStored() == 8) {
298 res = (bool)gdcm_read_JPEG_file (destination); // Reading Fragment pixels
300 res = (bool)gdcm_read_JPEG_file12 (destination);// Reading Fragment pixels
305 // FIXME : will work only when each fragment corresponds to a Frame :-(
307 destination = (char *)destination + taille * nBytes; // location in user's memory
308 // for next fragment (if any)
309 // TODO : find a suitable file (multifragment/single Frame Jpeg file) to check
311 fseek(fp,fragmentBegining,SEEK_SET); // To be sure we start
312 fseek(fp,ln,SEEK_CUR); // at the begining of next fragment
314 ItemTagGr = ItemTagEl =0;
315 fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
316 fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
318 ItemTagGr=SwapShort(ItemTagGr);
319 ItemTagEl=SwapShort(ItemTagEl);
322 //(char *) destination += taille * nBytes;
323 //std::cout << "destination" << destination << std::endl;
331 * \brief Allocates necessary memory, copies the pixel data
332 * (image[s]/volume[s]) to newly allocated zone.
333 * @return Pointer to newly allocated pixel data.
334 * \ NULL if alloc fails
336 void * gdcmFile::GetImageData (void) {
337 PixelData = (void *) malloc(lgrTotale);
339 GetImageDataIntoVector(PixelData, lgrTotale);
345 * \brief Copies at most MaxSize bytes of pixel data to caller's
347 * @param destination Address (in caller's memory space) at which the
348 * pixel data should be copied
349 * @param MaxSize Maximum number of bytes to be copied. When MaxSize
350 * is not sufficient to hold the pixel data the copy is not
351 * executed (i.e. no partial copy).
352 * @return On success, the number of bytes actually copied. Zero on
353 * failure e.g. MaxSize is lower than necessary.
356 size_t gdcmFile::GetImageDataIntoVector (void* destination, size_t MaxSize) {
358 int nb, nbu, highBit, signe;
359 std::string str_nbFrames, str_nb, str_nbu, str_highBit, str_signe;
361 if ( lgrTotale > MaxSize ) {
362 dbg.Verbose(0, "gdcmFile::GetImageDataIntoVector: pixel data bigger"
363 "than caller's expected MaxSize");
367 (void)ReadPixelData(destination);
369 // Nombre de Bits Alloues pour le stockage d'un Pixel
370 str_nb = GetPubElValByNumber(0x0028,0x0100);
371 if (str_nb == GDCM_UNFOUND ) {
374 nb = atoi(str_nb.c_str() );
377 // Nombre de Bits Utilises
378 str_nbu=GetPubElValByNumber(0x0028,0x0101);
379 if (str_nbu == GDCM_UNFOUND ) {
382 nbu = atoi(str_nbu.c_str() );
385 // Position du Bit de Poids Fort
386 str_highBit=GetPubElValByNumber(0x0028,0x0102);
387 if (str_highBit == GDCM_UNFOUND ) {
390 highBit = atoi(str_highBit.c_str() );
394 str_signe=GetPubElValByNumber(0x0028,0x0103);
395 if (str_signe == GDCM_UNFOUND ) {
398 signe = atoi(str_signe.c_str() );
401 // re arange bytes inside the integer
403 SwapZone(destination, GetSwapCode(), lgrTotale, nb);
405 // re arange bits inside the bytes
407 int l = (int)lgrTotale / (nb/8);
409 guint16 mask = 0xffff;
410 mask = mask >> (nb-nbu);
411 guint16 *deb = (guint16 *)destination;
412 for(int i = 0; i<l; i++) {
413 *deb = (*deb >> (nbu-highBit-1)) & mask;
416 } else if (nb == 32 ) {
417 guint32 mask = 0xffffffff;
418 mask = mask >> (nb-nbu);
419 guint32 *deb = (guint32 *)destination;
420 for(int i = 0; i<l; i++) {
421 *deb = (*deb >> (nbu-highBit-1)) & mask;
425 dbg.Verbose(0, "gdcmFile::GetImageDataIntoVector: wierd image");
430 // Just to 'see' was was actually read on disk :-(
431 // Some troubles expected
433 // *Try* to deal with the color
434 // ----------------------------
436 // Planar configuration = 0 : Pixels are already RGB
437 // Planar configuration = 1 : 3 planes : R, G, B
438 // Planar configuration = 2 : 1 gray Plane + 3 LUT
440 // Well ... supposed to be !
441 // See US-PAL-8-10x-echo.dcm: PlanarConfiguration=0,PhotometricInterpretation=PALETTE COLOR
442 // and heuristic has to be found :-(
444 std::string str_PhotometricInterpretation = gdcmHeader::GetPubElValByNumber(0x0028,0x0004);
446 if ( (str_PhotometricInterpretation == "MONOCHROME1 ")
447 || (str_PhotometricInterpretation == "MONOCHROME2 ")
448 || (str_PhotometricInterpretation == "RGB")) {
451 int planConf=GetPlanarConfiguration();
455 // Pixels are already RGB
461 if (str_PhotometricInterpretation == "YBR_FULL") { // Warning : YBR_FULL_422 acts as RGB (?!)
463 // need to make RGB Pixels from Planes Y,cB,cR
464 // see http://lestourtereaux.free.fr/papers/data/yuvrgb.pdf
465 // for code optimisation
467 int l = GetXSize()*GetYSize();
468 int nbFrames = GetZSize();
470 unsigned char * newDest = (unsigned char*) malloc(lgrTotale);
471 unsigned char *x = newDest;
472 unsigned char * a = (unsigned char *)destination;
473 unsigned char * b = a + l;
474 unsigned char * c = b + l;
478 // TODO : Replace by the 'well known'
479 // integer computation counterpart
480 for (int i=0;i<nbFrames;i++) {
481 for (int j=0;j<l; j++) {
482 R= 1.164 *( *a-16) + 1.596 *( *c -128) + 0.5;
483 G= 1.164 *( *a-16) - 0.813 *( *c -128) - 0.392 *(*b -128) + 0.5;
484 B= 1.164 *( *a-16) + 2.017 *( *b -128) + 0.5;
489 if (R>255.0) R=255.0;
490 if (G>255.0) G=255.0;
491 if (B>255.0) B=255.0;
493 *(x++) = (unsigned char)R;
494 *(x++) = (unsigned char)G;
495 *(x++) = (unsigned char)B;
499 memmove(destination,newDest,lgrTotale);
504 // need to make RGB Pixels from Planes R,G,B
506 int l = GetXSize()*GetYSize();
507 int nbFrames = GetZSize();
509 char * newDest = (char*) malloc(lgrTotale);
511 char * a = (char *)destination;
516 // any trick not to have to allocate temporary buffer is welcome ...
518 for (int i=0;i<nbFrames;i++) {
519 for (int j=0;j<l; j++) {
525 memmove(destination,newDest,lgrTotale);
529 // now, it's an RGB image
530 // Lets's write it in the Header
531 std::string spp = "3";
532 gdcmHeader::SetPubElValByNumber(spp,0x0028,0x0002);
533 std::string rgb="RGB";
534 gdcmHeader::SetPubElValByNumber(rgb,0x0028,0x0004);
539 // from Lut R + Lut G + Lut B
541 // we no longer use gdcmHeader::GetLUTRGB
542 // since a lot of images have strange info
543 // in the Lookup Table Descriptors (0028,1101),...
545 unsigned char * newDest = (unsigned char*) malloc(lgrTotale);
546 unsigned char * a = (unsigned char *)destination;
548 unsigned char *lutR =(unsigned char *)GetPubElValVoidAreaByNumber(0x0028,0x1201);
549 unsigned char *lutG =(unsigned char *)GetPubElValVoidAreaByNumber(0x0028,0x1202);
550 unsigned char *lutB =(unsigned char *)GetPubElValVoidAreaByNumber(0x0028,0x1203);
552 if (lutR && lutG && lutB ) { // need to make RGB Pixels
554 // and Lut R,Lut G,Lut B
556 unsigned char * newDest = (unsigned char*) malloc(lgrTotale);
558 memmove(newDest, destination, l);// move Gray pixels to temp area
560 unsigned char * x = newDest;
563 // See PS 3.3-2003 C.11.1.1.2 p 619
566 if ( GetLUTNbits()==16 && nb==8) mult=2; // See PS 3.3
569 for (int i=0;i<l; i++) {
578 // now, it's an RGB image
579 std::string spp = "3";
580 gdcmHeader::SetPubElValByNumber(spp,0x0028,0x0002);
581 std::string rgb="RGB";
582 gdcmHeader::SetPubElValByNumber(rgb,0x0028,0x0004);
584 } else { // need to make RGB Pixels (?)
585 // from grey Pixels (?!)
586 // and Gray Lut (!?!)
587 unsigned char *lutGray =(unsigned char *)GetPubElValVoidAreaByNumber(0x0028,0x1200);
588 // Well . I'll wait till I find such an image
598 // Je laisse le code integral, au cas ça puisse etre reutilise ailleurs
603 * \brief Swap the bytes, according to swap code.
604 * \warning not end user intended
605 * @param im area to deal with
606 * @param swap swap code
607 * @param lgr Area Length
608 * @param nb Pixels Bit number
611 void gdcmFile::SwapZone(void* im, int swap, int lgr, int nb) {
629 ((unsigned short int*)im)[i]= ((((unsigned short int*)im)[i])>>8)
630 | ((((unsigned short int*)im)[i])<<8);
634 printf("valeur de SWAP (16 bits) not allowed : %d\n", swap);
645 faible= ((unsigned long int*)im)[i]&0x0000ffff; /* 4321 */
646 fort =((unsigned long int*)im)[i]>>16;
647 fort= (fort>>8) | (fort<<8);
648 faible=(faible>>8) | (faible<<8);
650 ((unsigned long int*)im)[i]=(s32<<16)|fort;
656 faible= ((unsigned long int*)im)[i]&0x0000ffff; /* 2143 */
657 fort=((unsigned long int*)im)[i]>>16;
658 fort= (fort>>8) | (fort<<8);
659 faible=(faible>>8) | (faible<<8);
661 ((unsigned long int*)im)[i]=(s32<<16)|faible;
667 faible= ((unsigned long int*)im)[i]&0x0000ffff; /* 3412 */
668 fort=((unsigned long int*)im)[i]>>16;
670 ((unsigned long int*)im)[i]=(s32<<16)|fort;
675 printf(" SWAP value (32 bits) not allowed : %d\n", swap);
680 /////////////////////////////////////////////////////////////////
684 * \warning doit-etre etre publique ?
685 * TODO : y a-t-il un inconvenient à fusioner ces 2 fonctions
688 * @param ExpectedSize
690 * @return integer acts as a boolean
692 int gdcmFile::SetImageData(void * inData, size_t ExpectedSize) {
693 SetImageDataSize(ExpectedSize);
695 lgrTotale = ExpectedSize;
700 /////////////////////////////////////////////////////////////////
703 * \brief Sets the Pixel Area size in the Header
704 * --> not-for-rats function
706 * \warning WARNING doit-etre etre publique ?
707 * TODO : y aurait il un inconvenient à fusionner ces 2 fonctions
709 * @param ImageDataSize new Pixel Area Size
710 * warning : nothing else is checked
713 void gdcmFile::SetImageDataSize(size_t ImageDataSize) {
714 std::string content1;
716 // Assumes ElValue (0x7fe0, 0x0010) exists ...
717 sprintf(car,"%d",ImageDataSize);
719 gdcmElValue*a = GetElValueByNumber(0x7fe0, 0x0010);
720 a->SetLength(ImageDataSize);
723 sprintf(car,"%d",ImageDataSize);
725 SetPubElValByNumber(content1, 0x7fe0, 0x0000);
729 /////////////////////////////////////////////////////////////////
732 * \brief Ecrit sur disque les pixels d'UNE image
733 * Aucun test n'est fait sur l'"Endiannerie" du processeur.
734 * Ca sera à l'utilisateur d'appeler son Reader correctement
735 * (Equivalent a IdImaWriteRawFile)
741 int gdcmFile::WriteRawData (std::string fileName) {
743 fp1 = fopen(fileName.c_str(),"wb");
745 printf("Echec ouverture (ecriture) Fichier [%s] \n",fileName.c_str());
748 fwrite (PixelData,lgrTotale, 1, fp1);
753 /////////////////////////////////////////////////////////////////
756 * \brief Ecrit sur disque UNE image Dicom
757 * Aucun test n'est fait sur l'"Endiannerie" du processeur.
758 * Ca fonctionnera correctement (?) sur processeur Intel
759 * (Equivalent a IdDcmWrite)
762 * @return int acts as a boolean
765 int gdcmFile::WriteDcmImplVR (std::string fileName) {
766 return WriteBase(fileName, ImplicitVR);
769 /////////////////////////////////////////////////////////////////
774 * @return int acts as a boolean
777 int gdcmFile::WriteDcmImplVR (const char* fileName) {
778 return WriteDcmImplVR (std::string (fileName));
781 /////////////////////////////////////////////////////////////////
786 * @return int acts as a boolean
789 int gdcmFile::WriteDcmExplVR (std::string fileName) {
790 return WriteBase(fileName, ExplicitVR);
793 /////////////////////////////////////////////////////////////////
796 * \brief Ecrit au format ACR-NEMA sur disque l'entete et les pixels
797 * (a l'attention des logiciels cliniques
798 * qui ne prennent en entrée QUE des images ACR ...
799 * \warning si un header DICOM est fourni en entree,
800 * les groupes < 0x0008 et les groupes impairs sont ignores)
801 * \warning Aucun test n'est fait sur l'"Endiannerie" du processeur.
802 * Ca fonctionnera correctement (?) sur processeur Intel
803 * (Equivalent a IdDcmWrite)
806 * @return int acts as a boolean
809 int gdcmFile::WriteAcr (std::string fileName) {
810 return WriteBase(fileName, ACR);
813 /////////////////////////////////////////////////////////////////
820 * @return int acts as a boolean
822 int gdcmFile::WriteBase (std::string FileName, FileType type) {
825 fp1 = fopen(FileName.c_str(),"wb");
827 printf("Echec ouverture (ecriture) Fichier [%s] \n",FileName.c_str());
831 if ( (type == ImplicitVR) || (type == ExplicitVR) ) {
833 // writing Dicom File Preamble
834 filePreamble=(char*)calloc(128,1);
835 fwrite(filePreamble,128,1,fp1);
836 fwrite("DICM",4,1,fp1);
839 // --------------------------------------------------------------
840 // Special Patch to allow gdcm to re-write ACR-LibIDO formated images
842 // if recognition code tells us we dealt with a LibIDO image
843 // we reproduce on disk the switch between lineNumber and columnNumber
844 // just before writting ...
846 std::string rows, columns;
847 if ( filetype == ACR_LIBIDO){
848 rows = GetPubElValByNumber(0x0028, 0x0010);
849 columns = GetPubElValByNumber(0x0028, 0x0011);
850 SetPubElValByNumber(columns, 0x0028, 0x0010);
851 SetPubElValByNumber(rows , 0x0028, 0x0011);
853 // ----------------- End of Special Patch ----------------
855 gdcmHeader::Write(fp1, type);
857 // --------------------------------------------------------------
858 // Special Patch to allow gdcm to re-write ACR-LibIDO formated images
860 // ...and we restore the Header to be Dicom Compliant again
861 // just after writting
863 if (filetype == ACR_LIBIDO){
864 SetPubElValByNumber(rows , 0x0028, 0x0010);
865 SetPubElValByNumber(columns, 0x0028, 0x0011);
867 // ----------------- End of Special Patch ----------------
869 fwrite(PixelData, lgrTotale, 1, fp1);