Program: gdcm
Module: $RCSfile: gdcmJpeg2000.cxx,v $
Language: C++
- Date: $Date: 2005/09/20 09:24:10 $
- Version: $Revision: 1.28 $
+ Date: $Date: 2005/10/24 15:36:33 $
+ Version: $Revision: 1.29 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
#include <iostream>
#include <fstream>
-#include <jasper/jasper.h>
+//#include <jasper/jasper.h>
+extern "C" {
+#include <openjpeg.h>
+}
namespace gdcm
{
*/
bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
+{
+ j2k_image_t img;
+ j2k_cp_t cp;
+ //jp2_struct_t *jp2_struct=NULL;
+
+ // 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;
+
+ if (!j2k_decode(src, len, &img, &cp)) {
+ fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+ return false;
+ }
+
+
+ /************** PGX *****************/
+ //char *data8 = (char*)raw;
+ //uint16_t *data8 = (uint16_t*)raw;
+ for (int compno = 0; compno < img.numcomps; compno++) {
+ j2k_comp_t *comp = &img.comps[compno];
+ int nbytes = 0;
+
+ // w = int_ceildiv(img.x1 - img.x0, comp->dx);
+ // wr = int_ceildiv(int_ceildivpow2(img.x1 - img.x0,img.factor), comp->dx);
+ int w = img.comps[compno].w;
+ int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor);
+ std::cerr << "wr=" << wr << std::endl;
+
+ // h = int_ceildiv(img.y1 - img.y0, comp->dy);
+ // hr = int_ceildiv(int_ceildivpow2(img.y1 - img.y0,img.factor), comp->dy);
+ int h = img.comps[compno].h;
+ int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor);
+ std::cerr << "hr=" << hr << std::endl;
+
+ //fprintf(fdest, "PG ML %c %d %d %d\n", comp->sgnd ? '-' : '+',
+ // comp->prec, wr, hr);
+
+ 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;
+ }
+ }
+ 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;
+ }
+ }
+ 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;
+ }
+ }
+// for (int i = 0; i < wr * hr; i++)
+// {
+// //std::cout << "i:" << i << '\n';
+// int v = img.comps[compno].data[i / wr * w + i % wr];
+// //for (int j = nbytes - 1; j >= 0; j--)
+// for (int j = 0; j < nbytes-1 ; j++)
+// {
+// char byte = (char) (v >> (j * 8));
+// //fwrite(&byte, 1, 1, fdest);
+// *data8++ = byte;
+// }
+// //*data8++ = (uint16_t)v;
+// }
+ free(img.comps[compno].data);
+// fclose(fdest);
+ /************** END PGX *****************/
+ }
+
+
+ // Free remaining structures
+ //--------------------------
+ delete[] inputdata;
+ j2k_dec_release();
+
+ return true;
+}
+
+#if 0
+bool gdcm_read_JASPER_file (void* raw, char *inputdata, size_t inputlength)
{
#if 0
std::cerr << "Inputlenght=" << inputlength << std::endl;
return true;
}
+#endif
//-----------------------------------------------------------------------------
} // end namespace gdcm