Program: gdcm
Module: $RCSfile: gdcmJpeg2000.cxx,v $
Language: C++
- Date: $Date: 2005/10/24 21:08:59 $
- Version: $Revision: 1.31 $
+ Date: $Date: 2005/10/24 21:21:09 $
+ Version: $Revision: 1.32 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
{
- j2k_image_t img;
- j2k_cp_t cp;
-
- // default blindly copied
- cp.layer=0;
- cp.reduce=0;
- cp.decod_format=-1;
- cp.cod_format=-1;
-
- cp.cod_format=J2K_CFMT;
- cp.decod_format = PGX_DFMT;
- int len = inputlength;
- unsigned char *src = (unsigned char*)inputdata;
-
- // Decompression
- if (!j2k_decode(src, len, &img, &cp)) {
- std::cerr << "ERROR -> j2k_to_image: failed to decode image!\n";
- return false;
- }
-
- // Copy buffer
- for (int compno = 0; compno < img.numcomps; compno++)
- {
- j2k_comp_t *comp = &img.comps[compno];
- int nbytes = 0;
-
- int w = img.comps[compno].w;
- int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor);
-
- //int h = img.comps[compno].h;
- int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor);
-
- if (comp->prec <= 8)
+ j2k_image_t img;
+ j2k_cp_t cp;
+
+ // default blindly copied
+ cp.layer=0;
+ cp.reduce=0;
+ cp.decod_format=-1;
+ cp.cod_format=-1;
+
+ cp.cod_format=J2K_CFMT;
+ cp.decod_format = PGX_DFMT;
+ int len = inputlength;
+ unsigned char *src = (unsigned char*)inputdata;
+
+ // Decompression
+ if (!j2k_decode(src, len, &img, &cp))
+ {
+ gdcmErrorMacro( "ERROR -> j2k_to_image: failed to decode image!" );
+ return false;
+ }
+
+ // Copy buffer
+ for (int compno = 0; compno < img.numcomps; compno++)
+ {
+ j2k_comp_t *comp = &img.comps[compno];
+ int nbytes = 0;
+
+ int w = img.comps[compno].w;
+ int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor);
+
+ //int h = img.comps[compno].h;
+ int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor);
+
+ if (comp->prec <= 8)
{
- nbytes = 1;
- uint8_t *data8 = (uint8_t*)raw;
- for (int i = 0; i < wr * hr; i++)
- {
- int v = img.comps[compno].data[i / wr * w + i % wr];
- *data8++ = (uint8_t)v;
- }
+ nbytes = 1;
+ uint8_t *data8 = (uint8_t*)raw;
+ for (int i = 0; i < wr * hr; i++)
+ {
+ int v = img.comps[compno].data[i / wr * w + i % wr];
+ *data8++ = (uint8_t)v;
+ }
}
- else if (comp->prec <= 16)
+ else if (comp->prec <= 16)
{
- nbytes = 2;
- uint16_t *data16 = (uint16_t*)raw;
- for (int i = 0; i < wr * hr; i++)
- {
- int v = img.comps[compno].data[i / wr * w + i % wr];
- *data16++ = (uint16_t)v;
- }
+ nbytes = 2;
+ uint16_t *data16 = (uint16_t*)raw;
+ for (int i = 0; i < wr * hr; i++)
+ {
+ int v = img.comps[compno].data[i / wr * w + i % wr];
+ *data16++ = (uint16_t)v;
+ }
}
- else
+ else
{
- nbytes = 4;
- uint32_t *data32 = (uint32_t*)raw;
- for (int i = 0; i < wr * hr; i++)
- {
- int v = img.comps[compno].data[i / wr * w + i % wr];
- *data32++ = (uint32_t)v;
- }
+ nbytes = 4;
+ uint32_t *data32 = (uint32_t*)raw;
+ for (int i = 0; i < wr * hr; i++)
+ {
+ int v = img.comps[compno].data[i / wr * w + i % wr];
+ *data32++ = (uint32_t)v;
+ }
}
- free(img.comps[compno].data);
- }
-
-
- // Free remaining structures
- j2k_dec_release();
- // FIXME
- delete[] inputdata;
-
- return true;
+ free(img.comps[compno].data);
+ }
+
+ // Free remaining structures
+ j2k_dec_release();
+ // FIXME
+ delete[] inputdata;
+
+ return true;
}
#if 0