X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmJpeg2000.cxx;h=5bcb13ea4bd3cad3f3c39d98218c97228a05ab3a;hb=9773cdd1d50902a212b648608320e0dad99dcb8c;hp=aa73b48a93344f32642e75e6ac345877e1f2b0a4;hpb=2329c3cbf7cc86aa2c8410756927f0dcf3941441;p=gdcm.git

diff --git a/src/gdcmJpeg2000.cxx b/src/gdcmJpeg2000.cxx
index aa73b48a..5bcb13ea 100644
--- a/src/gdcmJpeg2000.cxx
+++ b/src/gdcmJpeg2000.cxx
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmJpeg2000.cxx,v $
   Language:  C++
-  Date:      $Date: 2005/05/22 18:38:52 $
-  Version:   $Revision: 1.20 $
+  Date:      $Date: 2005/09/20 09:24:10 $
+  Version:   $Revision: 1.28 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -27,22 +27,23 @@ namespace gdcm
 //-----------------------------------------------------------------------------
  /**
  * \brief   routine for JPEG decompression 
- * @param fp pointer to an already open file descriptor 
- *                      JPEG2000 encoded image
- * @param image_buffer to receive uncompressed pixels
+ * @param raw raw
+ * @param inputdata inputdata
+ * @param inputlength inputlength 
  * @return 1 on success, 0 on error
- * @warning : not yet made
  */
 
-bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, size_t inputlength)
+bool gdcm_read_JPEG2000_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...
-  // FIXME this is really ugly but it seems I have to load the complete
-  // jpeg2000 stream to use jasper:
-  uint8_t *inputdata = new uint8_t[inputlength];
-  //fp is already 'seek' to proper pos
-  fp->read((char*)inputdata, inputlength);
-  jas_stream_t *jasStream = jas_stream_memopen((char *)inputdata, inputlength);
+  jas_stream_t *jasStream = 
+    jas_stream_memopen((char *)inputdata, inputlength);
     
   int fmtid;
   if ((fmtid = jas_image_getfmt(jasStream)) < 0) 
@@ -52,7 +53,7 @@ bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, 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");
@@ -66,10 +67,8 @@ bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, size_t inputlength)
   int height = jas_image_cmptheight(jasImage, 0);
   int prec = jas_image_cmptprec(jasImage, 0);
   int i, j, k;
-  char *fmtname = jas_image_fmttostr(fmtid);
-  printf("%s %d %d %d %d %ld\n", fmtname, numcmpts, width, height, prec, (long) jas_image_rawsize(jasImage));
 
-  // 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)
@@ -78,8 +77,7 @@ bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, size_t inputlength)
     for ( i = 0; i < height; i++)
       for ( j = 0; j < width; j++)
         for ( k= 0; k < numcmpts; k++)
-          *data8++ =
-            (uint8_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
+          *data8++ = (uint8_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
     }
   else if (prec <= 16)
     {
@@ -87,8 +85,7 @@ bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, size_t inputlength)
     for ( i = 0; i < height; i++) 
       for ( j = 0; j < width; j++) 
         for ( k= 0; k < numcmpts; k++)
-          *data16++ = 
-            (uint16_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
+          *data16++ = (uint16_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
     }
   else if (prec <= 32)
     {
@@ -96,8 +93,7 @@ bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, size_t inputlength)
     for ( i = 0; i < height; i++) 
       for ( j = 0; j < width; j++) 
         for ( k= 0; k < numcmpts; k++)
-          *data32++ = 
-            (uint32_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
+          *data32++ = (uint32_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
     }
 
   jas_image_destroy(jasImage);
@@ -105,6 +101,11 @@ bool gdcm_read_JPEG2000_file (std::ifstream* fp, void* raw, 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;