X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmJpeg2000.cxx;h=5b0171075364354e69766df729268a0016474887;hb=46afb30d2d016a9b1581c7ee4ca96d614a35203c;hp=51f1b050c7f32b9bc8914c0b57dc75b7d3b4957b;hpb=5643fadddc60ed9986f21bddf1e1ed1d36f5d7a2;p=gdcm.git

diff --git a/src/gdcmJpeg2000.cxx b/src/gdcmJpeg2000.cxx
index 51f1b050..5b017107 100644
--- a/src/gdcmJpeg2000.cxx
+++ b/src/gdcmJpeg2000.cxx
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmJpeg2000.cxx,v $
   Language:  C++
-  Date:      $Date: 2005/06/07 20:23:13 $
-  Version:   $Revision: 1.24 $
+  Date:      $Date: 2005/11/28 15:20:33 $
+  Version:   $Revision: 1.34 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -20,7 +20,10 @@
 
 #include <iostream>
 #include <fstream>
-#include <jasper/jasper.h>
+
+extern "C" {
+  #include <openjpeg.h>
+}
 
 namespace gdcm 
 {
@@ -35,6 +38,85 @@ namespace gdcm
 
 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))
+   {
+      gdcmStaticErrorMacro( "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 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)
+      {
+         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)
+      {
+         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
+      {
+         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;
+}
+
+#if 0
+bool gdcm_read_JASPER_file (void* raw, char *inputdata, size_t inputlength)
+{
+#if 0
+  std::cerr << "Inputlenght=" << inputlength << std::endl;
+  std::ofstream out("/tmp/jpeg2000.jpc", std::ios::binary);
+  out.write((char*)inputdata,inputlength);
+  out.close();
+#endif
   jas_init(); //important...
   jas_stream_t *jasStream = 
     jas_stream_memopen((char *)inputdata, inputlength);
@@ -47,7 +129,7 @@ bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
     }
 
   // Decode the image. 
-  jas_image_t *jasImage = NULL;
+  jas_image_t *jasImage /* = NULL*/; // Useless assignation
   if (!(jasImage = jas_image_decode(jasStream, fmtid, 0))) 
     {
     gdcmErrorMacro("cannot decode image");
@@ -62,7 +144,7 @@ bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
   int prec = jas_image_cmptprec(jasImage, 0);
   int i, j, k;
 
-  // The following should serioulsy be rewritten I cannot belive we need to
+  // The following should serioulsy be rewritten I cannot believe we need to
   // do a per pixel decompression, there should be a way to read a full
   // scanline...
   if (prec == 8)
@@ -95,10 +177,16 @@ bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
 
   //FIXME
   //delete the jpeg temp buffer
+#if 0
+  std::ofstream rawout("/tmp/jpeg2000.raw");
+  rawout.write((char*)raw,height*width*numcmpts*((prec+4)/8));
+  rawout.close();
+#endif
   delete[] inputdata;
 
   return true;
 }
+#endif
 
 //-----------------------------------------------------------------------------
 } // end namespace gdcm