Testing/TestReadWriteReadCompare.cxx

   1 /*=========================================================================
   2
   3   Program:   gdcm
   4   Module:    $RCSfile: TestReadWriteReadCompare.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2008/02/13 19:08:34 $
   7   Version:   $Revision: 1.37 $
   8
   9   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  10   l'Image). All rights reserved. See Doc/License.txt or
  11   http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
  12
  13      This software is distributed WITHOUT ANY WARRANTY; without even
  14      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15      PURPOSE.  See the above copyright notices for more information.
  16
  17 =========================================================================*/
  18 #include "gdcmFile.h"
  19 #include "gdcmFileHelper.h"
  20 #include "gdcmDebug.h"
  21
  22 #include "gdcmGlobal.h"
  23 #include "gdcmTS.h"
  24
  25 //Generated file:
  26 #include "gdcmDataImages.h"
  27
  28 const unsigned int MAX_NUMBER_OF_DIFFERENCE = 10;
  29
  30 int nb_of_success___;
  31 int nb_of_failure___;
  32 int nb_of_diffPM1___;
  33 static int CompareInternal(std::string const &filename, std::string const &output)
  34 {
  35    std::cout << "----------------------------------------------------------------------" << std::endl
  36              << "   Testing: " << filename << std::endl;
  37
  38    //////////////// Step 1 (see above description):
  39
  40    GDCM_NAME_SPACE::File *file = GDCM_NAME_SPACE::File::New( );
  41    file->SetFileName( filename );
  42    file->Load ();
  43    if( !file->IsReadable() )
  44    {
  45       std::cout << "Failed" << std::endl
  46                 << "Test::TestReadWriteReadCompare: Image not gdcm compatible:"
  47                 << filename << std::endl;
  48       file->Delete();
  49       nb_of_failure___++;
  50       return 1;
  51    }
  52    std::cout << "           step 1...";
  53
  54    //////////////// Step 2:
  55    GDCM_NAME_SPACE::FileHelper *filehelper = GDCM_NAME_SPACE::FileHelper::New( file );
  56    int dataSize       = filehelper->GetImageDataSize();
  57    uint8_t *imageData = filehelper->GetImageData(); //EXTREMELY IMPORTANT
  58           // Sure, it is : It's up to the user to decide if he wants to
  59           // GetImageData or if he wants to GetImageDataRaw
  60           // (even if we do it by setting a flag, *he* will have to decide)
  61
  62    //filehelper->SetImageData(imageData, dataSize);
  63
  64    filehelper->SetContentType(GDCM_NAME_SPACE::UNMODIFIED_PIXELS_IMAGE); //  pixels remain unimpared
  65    filehelper->SetWriteModeToRGB( );
  66
  67    filehelper->SetUserData(imageData,dataSize); // This one ensures the compression
  68    filehelper->Write( output );
  69
  70    std::cout << "2...";
  71
  72    //////////////// Step 3:
  73    GDCM_NAME_SPACE::File *fileout = GDCM_NAME_SPACE::File::New();
  74    fileout->SetFileName( output );
  75    fileout->Load();
  76
  77    if( !fileout->IsReadable() )
  78    {
  79       std::cout << "Failed" << std::endl
  80                 << "Test::TestReadWriteReadCompare: Could not parse the newly "
  81                 << "written image:" << filename << std::endl;
  82       file->Delete();
  83       filehelper->Delete();
  84       fileout->Delete();
  85       nb_of_failure___++;
  86       return 1;
  87    }
  88
  89    GDCM_NAME_SPACE::FileHelper *reread = GDCM_NAME_SPACE::FileHelper::New( fileout );
  90
  91    std::cout << "3...";
  92    // For the next step:
  93    int     dataSizeWritten   = reread->GetImageDataSize();
  94    uint8_t *imageDataWritten = reread->GetImageData();
  95
  96    //////////////// Step 4:
  97    // Test the image size
  98    if (file->GetXSize() != reread->GetFile()->GetXSize() ||
  99        file->GetYSize() != reread->GetFile()->GetYSize() ||
 100        file->GetZSize() != reread->GetFile()->GetZSize())
 101    {
 102       std::cout << "Failed" << std::endl
 103          << "        Size differs: "
 104          << "X: " << file->GetXSize() << " # "
 105                   << reread->GetFile()->GetXSize() << " | "
 106          << "Y: " << file->GetYSize() << " # "
 107                   << reread->GetFile()->GetYSize() << " | "
 108          << "Z: " << file->GetZSize() << " # "
 109                   << reread->GetFile()->GetZSize() << std::endl;
 110       file->Delete();
 111       filehelper->Delete();
 112       fileout->Delete();
 113       reread->Delete();
 114       nb_of_failure___++;
 115       return 1;
 116    }
 117
 118    // Test the data size
 119    // beware of odd length Pixel Element!
 120    if (dataSize != dataSizeWritten)
 121       std::cout << std::endl << "dataSize:" << dataSize << " dataSizeWritten:" << dataSizeWritten << std::endl;
 122
 123    int dataSizeFixed = dataSize - dataSize%2;
 124    int dataSizeWrittenFixed = dataSizeWritten - dataSizeWritten%2;
 125
 126    if (dataSizeFixed != dataSizeWrittenFixed)
 127    {
 128       std::cout << "Failed" << std::endl
 129          << "        Pixel areas lengths differ: "
 130          << dataSize << " # " << dataSizeWritten << std::endl;
 131       file->Delete();
 132       filehelper->Delete();
 133       fileout->Delete();
 134       reread->Delete();
 135       nb_of_failure___++;
 136       return 1;
 137    }
 138
 139    // Test the data content
 140
 141    unsigned int nbDiff = 0;
 142    if (memcmp(imageData, imageDataWritten, dataSizeFixed) !=0)
 143    {
 144       std::string PixelType = filehelper->GetFile()->GetPixelType();
 145       std::string ts        = filehelper->GetFile()->GetTransferSyntax();
 146
 147        for(int i1=0; i1<dataSizeFixed; i1++)
 148          if (abs ((int)imageData[i1]-(int)imageDataWritten[i1]) > 2) {
 149             nbDiff++;
 150            // break; // at debug time, keep line commented out; (uncommenting will save CPU time)
 151          }
 152
 153        if (nbDiff!=0)
 154        {
 155           std::cout << std::endl << filename << " Failed : "
 156                     << nbDiff/(file->GetBitsAllocated()/8) << " Pixels -amongst "
 157                     << dataSizeFixed/(file->GetBitsAllocated()/8) << "- ("
 158                     << PixelType << " bAlloc:" << file->GetBitsAllocated() << " bStored:" << file->GetBitsStored()
 159                     << ") differ (as expanded in memory)."
 160                     << std::endl
 161                     << "        compression : "
 162                     << GDCM_NAME_SPACE::Global::GetTS()->GetValue(ts) << std::endl;
 163
 164           std::cout << "   list of the first " << MAX_NUMBER_OF_DIFFERENCE
 165                     << " bytes differing (pos : original - written) :"
 166                     << std::endl;
 167
 168           for(unsigned int i=0, j1=0; i<dataSizeFixed && j1<MAX_NUMBER_OF_DIFFERENCE; i++)
 169           {
 170              if (abs ((int)imageData[i]-(int)imageDataWritten[i]) > 2)
 171              {
 172                 if (j1<MAX_NUMBER_OF_DIFFERENCE)
 173                    std::cout << std::dec << "(" << i << " : "
 174                      << std::hex
 175                      << (int)(imageData[i]) << " - "
 176                      << (int)(imageDataWritten[i]) << ") "
 177                      << std::dec;
 178                 ++j1;
 179               }
 180           }
 181           std::cout << std::endl;
 182
 183           file->Delete();
 184           filehelper->Delete();
 185           fileout->Delete();
 186           reread->Delete();
 187           nb_of_failure___++;
 188
 189           if (nbDiff/2 > 8 )  // last pixel of (DermaColorLossLess.dcm) is diferent. ?!?
 190                               // I don't want it to break the testsuite
 191              return 1;
 192           else
 193              return 0;
 194        }
 195        else
 196        {
 197           std::cout << std::endl << filename << " : some pixels"
 198                     << "  ("
 199                     << PixelType << " bAlloc:" << file->GetBitsAllocated() << " bStored:" << file->GetBitsStored()
 200                     << ") differ +/-1 (as expanded in memory)."
 201                     << std::endl
 202                     << "        compression : "
 203                     << GDCM_NAME_SPACE::Global::GetTS()->GetValue(ts) << std::endl;
 204
 205           std::cout << "   list of the first " << MAX_NUMBER_OF_DIFFERENCE
 206                     << " bytes differing (pos : original - written) :"
 207                     << std::endl;
 208
 209           for(unsigned int i=0, j=0; i<dataSizeFixed && j<MAX_NUMBER_OF_DIFFERENCE; i++)
 210           {
 211              if (imageData[i] != imageDataWritten[i])
 212              {
 213                 std::cout << std::hex << "(" << i << " : "
 214                          << std::hex << (int)(imageData[i]) << " - "
 215                          << std::hex << (int)(imageDataWritten[i]) << ") "
 216                          << std::dec;
 217                 ++j;
 218               }
 219           }
 220           std::cout << std::endl;
 221           nb_of_diffPM1___++;
 222        }
 223    }
 224    else
 225    {
 226       nb_of_success___ ++;
 227    }
 228    std::cout << "=============== 4...OK." << std::endl ;
 229    //////////////// Clean up:
 230    file->Delete();
 231    filehelper->Delete();
 232    fileout->Delete();
 233    reread->Delete();
 234
 235    return 0;
 236 }
 237
 238 // -------------------------------------------------------------------------------------------
 239
 240 int TestReadWriteReadCompare(int argc, char *argv[])
 241 {
 242    int result = 0;
 243    nb_of_success___ = 0;
 244    nb_of_failure___ = 0;
 245    nb_of_diffPM1___ = 0;
 246
 247    if (argc == 4)
 248       GDCM_NAME_SPACE::Debug::DebugOn();
 249
 250    if (argc >= 3)
 251    {
 252       const std::string input  = argv[1];
 253       const std::string output = argv[2];
 254       result += CompareInternal(input, output);
 255    }
 256    else if( argc > 4 || argc == 2 )
 257    {
 258       std::cout << "Please read the manual" << std::endl;
 259    }
 260    else
 261    {
 262       std::cout<< "Test::TestReadWriteReadCompare: description " << std::endl;
 263       std::cout << "   For all images in gdcmData (and not blacklisted in "
 264                    "Test/CMakeLists.txt)" << std::endl;
 265       std::cout << "   apply the following multistep test: " << std::endl;
 266       std::cout << "   step 1: parse the image (as gdcmFile) and call"
 267                 << " IsReadable(). " << std::endl;
 268       std::cout << "   step 2: write the corresponding image in DICOM V3 "
 269                 << "with explicit Value Representation " << std::endl
 270                 << "            in temporary file "
 271                 << "TestReadWriteReadCompare.dcm." << std::endl;
 272       std::cout << "   step 3: read the image written on step2 and call "
 273                 << " IsReadable(). " << std::endl;
 274       std::cout << "   step 4: compare (in memory with memcmp) that the two "
 275                 << "images " << std::endl
 276                 << "           match (as expanded by gdcm)." << std::endl;
 277
 278       int i = 0;
 279       int res =0;
 280       while( gdcmDataImages[i] != 0 )
 281       {
 282          std::string filename = GDCM_DATA_ROOT;
 283          filename += "/";
 284          filename += gdcmDataImages[i];
 285          res = CompareInternal(filename, "TestReadWriteReadCompare.dcm");
 286
 287          if (res == 1)
 288          {
 289             std::cout << "=============================== Failure on: " << gdcmDataImages[i] << std::endl;
 290             result ++;
 291          }
 292          i ++;
 293       }
 294    }
 295    std::cout << "==================================" << std::endl;
 296    std::cout << "nb of success  " << nb_of_success___ << std::endl;
 297    std::cout << "nb of failure  " << nb_of_failure___ << std::endl;
 298    std::cout << "nb of diff+/-1 " << nb_of_diffPM1___ << std::endl;
 299    return result;
 300 }