#include "gdcmFile.h"
#include "gdcmUtil.h"
#include "iddcmjpeg.h" // for the 'LibIDO' Jpeg LossLess
+#include "jpeg/ljpg/jpegless.h"
/////////////////////////////////////////////////////////////////
/**
if ( fseek(fp, GetPixelOffset(), SEEK_SET) == -1 ) {
CloseFile();
return false;
- }
+ }
+
+// ------------------------- Compacted File (12 Bits Per Pixel)
+
+ /* unpack 12 Bits pixels into 16 Bits pixels */
+ /* 2 pixels 12bit = [0xABCDEF] */
+ /* 2 pixels 16bit = [0x0ABD] + [0x0FCE] */
+
+ if (GetBitsAllocated()==12) {
+ int nbPixels = GetXSize()*GetYSize();
+ unsigned char b0, b1, b2;
+
+ for(int p=0;p<nbPixels;p+=2) {
+ fread(&b0,1,1,fp);
+ fread(&b1,1,1,fp);
+ fread(&b2,1,1,fp);
+ *((unsigned short int*)destination)++ =
+ ((b0 >> 4) << 8) + ((b0 & 0x0f) << 4) + (b1 & 0x0f);
+ /* A */ /* B */ /* D */
+ *((unsigned short int*)destination)++ =
+ ((b2 & 0x0f) << 8) + ((b1 >> 4) << 4) + (b2 >> 4);
+ /* F */ /* C */ /* E */
+
+ // Troubles expected on Big-Endian processors ?
+ }
+ return(true);
+ }
+
// ------------------------- Uncompressed File
nb = 16;
} else {
nb = atoi(str_nb.c_str() );
- if (nb == 12) nb =16;
+ if (nb == 12) nb =16; // ?? 12 should be ACR-NEMA only ?
}
int nBytes= nb/8;
int taille = GetXSize() * GetYSize() * GetSamplesPerPixel();
-
- // ------------------------------- JPEG LossLess : call to Jpeg Libido
-
- if (IsJPEGLossless() && GetZSize() == 1) {
-
- int ln; // Position on begining of Jpeg Pixels
- fseek(fp,4,SEEK_CUR); // skipping (fffe,e000) : Basic Offset Table Item
- fread(&ln,4,1,fp);
- if(GetSwapCode())
- ln=SwapLong(ln); // Item length
- fseek(fp,ln,SEEK_CUR); // skipping Basic Offset Table ('ln' bytes)
- fseek(fp,4,SEEK_CUR); // skipping (fffe,e000) : First fragment Item Tag
- fread(&ln,4,1,fp); // First fragment length (just to know)
- if(GetSwapCode())
- ln=SwapLong(ln);
-
- ClbJpeg* jpg = _IdDcmJpegRead(fp); // TODO : find a 'full' one.
- // (We use the LibIDO one :-(
- if(jpg == NULL) {
- CloseFile();
- return false;
- }
- int * dataJpg = jpg->DataImg;
-
- switch (nBytes) {
- case 1:
- {
- unsigned short *dest = (unsigned short *)destination;
- for (int i=0; i<taille; i++) {
- *((unsigned char *)dest+i) = *(dataJpg +i);
- }
- }
- break;
-
- case 2:
- {
- unsigned short *dest = (unsigned short *)destination;
- for (int i=0; i<taille; i++) {
- *((unsigned short *)dest+i) = *(dataJpg +i);
- }
- }
- break;
- }
- _IdDcmJpegFree (jpg);
- return true;
- }
+
- // ------------------------------- RLE
+ // ---------------- RLE
if (gdcmHeader::IsRLELossLessTransferSyntax()) {
int res = (bool)gdcm_read_RLE_file (destination);
return res;
}
- // ------------------------------- Multiframe JPEG
+ // ----------------- SingleFrame/Multiframe JPEG
long fragmentBegining; // for ftell, fseek
+
bool b = gdcmHeader::IsJPEG2000();
- bool res;
+ bool res = true;
guint16 ItemTagGr,ItemTagEl;
- int ln; // Position on begining of Jpeg Pixels
+ int ln;
+
+ // Position on begining of Jpeg Pixels
fread(&ItemTagGr,2,1,fp); // Reading (fffe) : Item Tag Gr
fread(&ItemTagEl,2,1,fp); // Reading (e000) : Item Tag El
}
// parsing fragments until Sequence Delim. Tag found
- //unsigned short *dest = (unsigned short *)destination;
-
- while ( ( ItemTagGr == 0xfffe) && (ItemTagEl != 0xe0dd) ) {
+
+ while ( ( ItemTagGr == 0xfffe) && (ItemTagEl != 0xe0dd) ) {
+
+ // --- for each Fragment
+
fread(&ln,4,1,fp);
if(GetSwapCode())
ln=SwapLong(ln); // Fragment Item length
- // FIXME : multi fragments
fragmentBegining=ftell(fp);
if (b)
res = (bool)gdcm_read_JPEG2000_file (destination); // Not Yet written
- else if (IsJPEGLossless()) { // JPEG LossLess : call to LibIDO Jpeg
-
- // ------------- for each Fragment
-
- // Warning : Works only if there is one fragment per frame
- // (Or a single fragment for the multiframe file)
- ClbJpeg* jpg = _IdDcmJpegRead(fp); // TODO : find a 'full' one.
- // (We use the LibIDO one :-(
- if(jpg == NULL) {
- CloseFile();
- return false;
- }
- int * dataJpg = jpg->DataImg;
- unsigned short *dest = (unsigned short *)destination;
- switch (nBytes) {
- case 1:
- {
- for (int i=0; i<taille; i++) {
- *((unsigned char *)dest+i) = *(dataJpg +i);
- }
- break;
- }
-
- case 2:
- {
- for (int i=0; i<taille; i++) {
- *((unsigned short *)dest+i) = *(dataJpg +i);
- }
- break;
- }
- }
- _IdDcmJpegFree (jpg);
-
- res=1; // in order not to break the loop
+ else if (IsJPEGLossless()) { // JPEG LossLess : call to xmedcom JPEG
+
+ JPEGLosslessDecodeImage (fp,
+ (unsigned short *)destination,
+ GetPixelSize()*8* GetSamplesPerPixel(),
+ ln);
+
+ res=1; // in order not to break the loop
} // ------------------------------------- endif (IsJPEGLossless())
- else // JPEG Lossy : call to IJG 6b
+ else { // JPEG Lossy : call to xmedcon JPEG
+ // (just to see if it works) --> it does NOT !
+ /*
+ JPEGLosslessDecodeImage (fp,
+ (unsigned short *)destination,
+ GetPixelSize()*8* GetSamplesPerPixel(),
+ ln);
+
+ */
+ // JPEG Lossy : call to IJG 6b
+
if (GetBitsStored() == 8) {
res = (bool)gdcm_read_JPEG_file (destination); // Reading Fragment pixels
} else {
res = (bool)gdcm_read_JPEG_file12 (destination);// Reading Fragment pixels
- }
+ }
+
+
+ }
if (!res) break;
}
} // endWhile parsing fragments until Sequence Delim. Tag found
-
+
return res;
}
int l = lgrTotale/3;
memmove(newDest, destination, l);// move Gray pixels to temp area
- unsigned char * x = newDest;
-
int j;
// See PS 3.3-2003 C.11.1.1.2 p 619
//
// if we get a black image, let's just remove the '+1'
// and check again
// if it works, we shall have to check the 3 Palettes
- // to see which byte is ==0 (first one, on second one)
+ // to see which byte is ==0 (first one, or second one)
+
+ //unsigned char * x = newDest;
for (int i=0;i<l; i++) {
j=newDest[i]*mult +1;
git://git.creatis.insa-lyon.fr / gdcm.git / commitdiff