]> Creatis software - gdcm.git/blobdiff - Testing/TestCopyDicom.cxx
First stage of name normalisation : gdcm::File replace by gdcm::FileHelper
[gdcm.git] / Testing / TestCopyDicom.cxx
index e67a9926ce380aebb25487a81fa6963cd9a313e3..d012050af58816cf462a84ba60e9a39045a5cbe4 100644 (file)
@@ -1,13 +1,32 @@
+/*=========================================================================
+                                                                                
+  Program:   gdcm
+  Module:    $RCSfile: TestCopyDicom.cxx,v $
+  Language:  C++
+  Date:      $Date: 2005/01/20 16:16:59 $
+  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
+  http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
+                                                                                
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+                                                                                
+=========================================================================*/
 #include "gdcmHeader.h"
-#include "gdcmFile.h"
-#include "gdcmDocument.h"
+#include "gdcmFileHelper.h"
 #include "gdcmValEntry.h"
+#include "gdcmBinEntry.h"
 
 //Generated file:
 #include "gdcmDataImages.h"
 
 #ifndef _WIN32
 #include <unistd.h> //for access, unlink
+#else
+#include <io.h> //for _access on Win32
 #endif
 
 // return true if the file exists
@@ -37,79 +56,206 @@ bool RemoveFile(const char* source)
   return unlink(source) != 0 ? false : true;
 }
 
-// Here we load a gdcmFile and then try to create from scratch a copy of it,
-// copying field by field the dicom image
-
-int TestCopyDicom(int , char* [])
+int CopyDicom(std::string const & filename, 
+              std::string const & output )
 {
-   int i =0;
-   int retVal = 0;  //by default this is an error
-   while( gdcmDataImages[i] != 0 )
-   {
-      std::string filename = GDCM_DATA_ROOT;
-      filename += "/";  //doh!
-      filename += gdcmDataImages[i];
-      std::cerr << "Filename: " << filename << std::endl;
-
-      std::string output = "../Testing/Temporary/output.dcm";
-
+      std::cout << "   Testing: " << filename << std::endl;
       if( FileExists( output.c_str() ) )
       {
-         std::cerr << "Don't try to cheat, I am removing the file anyway" << std::endl;
          if( !RemoveFile( output.c_str() ) )
          {
-            std::cerr << "Ouch, the file exist, but I cannot remove it" << std::endl;
+            std::cout << "Ouch, the file exist, but I cannot remove it" << std::endl;
             return 1;
          }
       }
 
-      gdcmFile *original = new gdcmFile( filename );
-      gdcmFile *copy = new gdcmFile( output );
+      //////////////// Step 1:
+      std::cout << "      1...";
+      gdcm::Header *originalH = new gdcm::Header( filename );
+      gdcm::Header *copyH     = new gdcm::Header( );
 
       //First of all copy the header field by field
-      TagNameHT & nameHt = original->GetHeader()->GetPubDict()->GetEntriesByName();
-      for (TagNameHT::iterator tag = nameHt.begin(); tag != nameHt.end(); ++tag)
+  
+      // Warning :Accessor gdcmElementSet::GetEntry() should not exist 
+      // It was commented out by Mathieu, that was a *good* idea
+
+      //////////////// Step 2:
+      std::cout << "2...";
+      gdcm::DocEntry* d=originalH->GetFirstEntry();
+      while(d)
       {
-         if (tag->second->GetVR() == "SQ") //to skip pb of SQ recursive exploration
-            continue;
-
-         //According to JPR I should also skip those:
-//         if (tag->second->GetVR() == "unkn") //to skip pb of SQ recursive exploration
-//            continue;
-
-         //no clue what to do with this one
-         //std::cerr << "Reading: " << tag->second->GetVR() << std::endl;
-         std::string value = ((gdcmValEntry*)(tag->second))->GetValue();
-//         if( value.find( "gdcm::NotLoaded" ) == 0 )
-//            continue;
-
-         //no clue what to do with this one
-         if( value.find( "gdcm::Loaded" ) == 0 )
-            continue;
-
-         copy->GetHeader()->ReplaceOrCreateByNumber( 
-               value, 
-               tag->second->GetGroup(), 
-               tag->second->GetElement() );
+         if ( gdcm::BinEntry* b = dynamic_cast<gdcm::BinEntry*>(d) )
+         {
+            copyH->ReplaceOrCreate( 
+                                 b->GetBinArea(),
+                                 b->GetLength(),
+                                 b->GetGroup(), 
+                                 b->GetElement(),
+                                 b->GetVR() );
+         }
+         else if ( gdcm::ValEntry* v = dynamic_cast<gdcm::ValEntry*>(d) )
+         {   
+             copyH->ReplaceOrCreate( 
+                                 v->GetValue(),
+                                 v->GetGroup(), 
+                                 v->GetElement(),
+                                 v->GetVR() ); 
+         }
+         else
+         {
+          // We skip pb of SQ recursive exploration
+         }
+
+         d=originalH->GetNextEntry();
       }
 
+      gdcm::FileHelper *original = new gdcm::FileHelper( originalH );
+      gdcm::FileHelper *copy     = new gdcm::FileHelper( copyH );
+
       size_t dataSize = original->GetImageDataSize();
-      void *imageData = original->GetImageData();
+      uint8_t* imageData = original->GetImageData();
 
+      // Useless to set the image datas, because it's already made when
+      // copying the corresponding BinEntry that contains the pixel datas
       copy->SetImageData(imageData, dataSize);
-      //original->GetHeader()->SetImageDataSize(dataSize);
 
-      //copy->GetHeader()->PrintEntry();
+      //////////////// Step 3:
+      std::cout << "3...";
+      copy->SetWriteModeToRGB();
+      if( !copy->WriteDcmExplVR(output) )
+      {
+         std::cout << " Failed" << std::endl
+                   << "       " << output << " not written" << std::endl;
+
+         delete original;
+         delete copy;
+         delete originalH;
+         delete copyH;
+
+         return 1;
+      }
+
+      delete copy;
+      delete copyH;
+
+      //////////////// Step 4:
+      std::cout << "4...";
+      copy = new gdcm::FileHelper( output );
 
-      //copy->WriteDcmExplVR( output );
-      
       //Is the file written still gdcm parsable ?
-      gdcmFile check( output );
-      retVal += !check.GetHeader()->IsReadable();
-   }
+      if ( !copy->GetHeader()->IsReadable() )
+      { 
+         std::cout << " Failed" << std::endl
+                   << "        " << output << " not readable" << std::endl;
 
-   return retVal;
+         delete original;
+         delete originalH;
+
+         return 1;
+      }
+
+      //////////////// Step 5:
+      std::cout << "5...";
+      size_t    dataSizeWritten = copy->GetImageDataSize();
+      uint8_t* imageDataWritten = copy->GetImageData();
+
+      if (dataSize != dataSizeWritten)
+      {
+         std::cout << " Failed" << std::endl
+                   << "        Pixel areas lengths differ: "
+                   << dataSize << " # " << dataSizeWritten << std::endl;
+
+         delete original;
+         delete copy;
+         delete originalH;
+
+         return 1;
+      }
+
+      if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
+      {
+         (void)res;
+         std::cout << " Failed" << std::endl
+                   << "        Pixel differ (as expanded in memory)." << std::endl;
+
+         delete original;
+         delete copy;
+         delete originalH;
+
+         return 1;
+      }
+      std::cout << "OK." << std::endl ;
+
+      delete original;
+      delete copy;
+      delete originalH;
+
+      return 0;
 }
 
+// Here we load a gdcmFile and then try to create from scratch a copy of it,
+// copying field by field the dicom image
+
+int TestCopyDicom(int argc, char* argv[])
+{
+   if ( argc == 3 )
+   {
+      // The test is specified a specific filename, use it instead of looping
+      // over all images
+      const std::string input = argv[1];
+      const std::string reference = argv[2];
+      return CopyDicom( input, reference );
+   }
+   else if ( argc > 3 || argc == 2 )
+   {
+      std::cout << "   Usage: " << argv[0]
+                << " (no arguments needed)." << std::endl;
+      std::cout << "or   Usage: " << argv[0]
+                << " filename.dcm reference.dcm" << std::endl;
+      return 1;
+   }
+   // else other cases:
 
+   std::cout << "   Description (Test::TestCopyDicom): "
+             << std::endl;
+   std::cout << "   For all images in gdcmData (and not blacklisted in "
+                "Test/CMakeLists.txt)"
+             << std::endl;
+   std::cout << "   apply the following to each filename.xxx: "
+             << std::endl;
+   std::cout << "   step 1: parse the image (as gdcmHeader) and call"
+             << " IsReadable(). After that, call GetImageData() and "
+             << "GetImageDataSize() "
+             << std::endl;
+   std::cout << "   step 2: create a copy of the readed file and the new"
+             << " pixel datas are set to the copy"
+             << std::endl;
+   std::cout << "   step 3: write the copy of the image"
+             << std::endl;
+   std::cout << "   step 4: read the copy and call IsReadable()"
+             << std::endl;
+   std::cout << "   step 5: compare (in memory with memcmp) that the two "
+             << "images " << std::endl
+             << "           match (as expanded by gdcm)." << std::endl;
+   std::cout << std::endl;
+
+   int i =0;
+   int retVal = 0;  //by default this is an error
+   while( gdcmDataImages[i] != 0 )
+   {
+      std::string filename = GDCM_DATA_ROOT;
+      filename += "/";  //doh!
+      filename += gdcmDataImages[i];
+
+      std::string output = "output.dcm";
+
+      if( CopyDicom( filename, output ) != 0 )
+      {
+         retVal++;
+      }
+
+      i++;
+   }
+   return retVal;
+}