Testing/TestReadWriteReadCompare.cxx

   1 /*=========================================================================
   2
   3   Program:   gdcm
   4   Module:    $RCSfile: TestReadWriteReadCompare.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2008/04/10 12:15:34 $
   7   Version:   $Revision: 1.38 $
   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 #include <stdlib.h> // abs
  26
  27 //Generated file:
  28 #include "gdcmDataImages.h"
  29
  30 const unsigned int MAX_NUMBER_OF_DIFFERENCE = 10;
  31
  32 int nb_of_success___;
  33 int nb_of_failure___;
  34 int nb_of_diffPM1___;
  35 static int CompareInternal(std::string const &filename, std::string const &output)
  36 {
  37    std::cout << "----------------------------------------------------------------------" << std::endl
  38              << "   Testing: " << filename << std::endl;
  39
  40    //////////////// Step 1 (see above description):
  41
  42    GDCM_NAME_SPACE::File *file = GDCM_NAME_SPACE::File::New( );
  43    file->SetFileName( filename );
  44    file->Load ();
  45    if( !file->IsReadable() )
  46    {
  47       std::cout << "Failed" << std::endl
  48                 << "Test::TestReadWriteReadCompare: Image not gdcm compatible:"
  49                 << filename << std::endl;
  50       file->Delete();
  51       nb_of_failure___++;
  52       return 1;
  53    }
  54    std::cout << "           step 1...";
  55
  56    //////////////// Step 2:
  57    GDCM_NAME_SPACE::FileHelper *filehelper = GDCM_NAME_SPACE::FileHelper::New( file );
  58    int dataSize       = filehelper->GetImageDataSize();
  59    uint8_t *imageData = filehelper->GetImageData(); //EXTREMELY IMPORTANT
  60           // Sure, it is : It's up to the user to decide if he wants to
  61           // GetImageData or if he wants to GetImageDataRaw
  62           // (even if we do it by setting a flag, *he* will have to decide)
  63
  64    //filehelper->SetImageData(imageData, dataSize);
  65
  66    filehelper->SetContentType(GDCM_NAME_SPACE::UNMODIFIED_PIXELS_IMAGE); //  pixels remain unimpared
  67    filehelper->SetWriteModeToRGB( );
  68
  69    filehelper->SetUserData(imageData,dataSize); // This one ensures the compression
  70    filehelper->Write( output );
  71
  72    std::cout << "2...";
  73
  74    //////////////// Step 3:
  75    GDCM_NAME_SPACE::File *fileout = GDCM_NAME_SPACE::File::New();
  76    fileout->SetFileName( output );
  77    fileout->Load();
  78
  79    if( !fileout->IsReadable() )
  80    {
  81       std::cout << "Failed" << std::endl
  82                 << "Test::TestReadWriteReadCompare: Could not parse the newly "
  83                 << "written image:" << filename << std::endl;
  84       file->Delete();
  85       filehelper->Delete();
  86       fileout->Delete();
  87       nb_of_failure___++;
  88       return 1;
  89    }
  90
  91    GDCM_NAME_SPACE::FileHelper *reread = GDCM_NAME_SPACE::FileHelper::New( fileout );
  92
  93    std::cout << "3...";
  94    // For the next step:
  95    int     dataSizeWritten   = reread->GetImageDataSize();
  96    uint8_t *imageDataWritten = reread->GetImageData();
  97
  98    //////////////// Step 4:
  99    // Test the image size
 100    if (file->GetXSize() != reread->GetFile()->GetXSize() ||
 101        file->GetYSize() != reread->GetFile()->GetYSize() ||
 102        file->GetZSize() != reread->GetFile()->GetZSize())
 103    {
 104       std::cout << "Failed" << std::endl
 105          << "        Size differs: "
 106          << "X: " << file->GetXSize() << " # "
 107                   << reread->GetFile()->GetXSize() << " | "
 108          << "Y: " << file->GetYSize() << " # "
 109                   << reread->GetFile()->GetYSize() << " | "
 110          << "Z: " << file->GetZSize() << " # "
 111                   << reread->GetFile()->GetZSize() << std::endl;
 112       file->Delete();
 113       filehelper->Delete();
 114       fileout->Delete();
 115       reread->Delete();
 116       nb_of_failure___++;
 117       return 1;
 118    }
 119
 120    // Test the data size
 121    // beware of odd length Pixel Element!
 122    if (dataSize != dataSizeWritten)
 123       std::cout << std::endl << "dataSize:" << dataSize << " dataSizeWritten:" << dataSizeWritten << std::endl;
 124
 125    int dataSizeFixed = dataSize - dataSize%2;
 126    int dataSizeWrittenFixed = dataSizeWritten - dataSizeWritten%2;
 127
 128    if (dataSizeFixed != dataSizeWrittenFixed)
 129    {
 130       std::cout << "Failed" << std::endl
 131          << "        Pixel areas lengths differ: "
 132          << dataSize << " # " << dataSizeWritten << std::endl;
 133       file->Delete();
 134       filehelper->Delete();
 135       fileout->Delete();
 136       reread->Delete();
 137       nb_of_failure___++;
 138       return 1;
 139    }
 140
 141    // Test the data content
 142
 143    unsigned int nbDiff = 0;
 144    if (memcmp(imageData, imageDataWritten, dataSizeFixed) !=0)
 145    {
 146       std::string PixelType = filehelper->GetFile()->GetPixelType();
 147       std::string ts        = filehelper->GetFile()->GetTransferSyntax();
 148
 149        for(int i1=0; i1<dataSizeFixed; i1++)
 150          if (abs ((int)imageData[i1]-(int)imageDataWritten[i1]) > 2) {
 151             nbDiff++;
 152            // break; // at debug time, keep line commented out; (uncommenting will save CPU time)
 153          }
 154
 155        if (nbDiff!=0)
 156        {
 157           std::cout << std::endl << filename << " Failed : "
 158                     << nbDiff/(file->GetBitsAllocated()/8) << " Pixels -amongst "
 159                     << dataSizeFixed/(file->GetBitsAllocated()/8) << "- ("
 160                     << PixelType << " bAlloc:" << file->GetBitsAllocated() << " bStored:" << file->GetBitsStored()
 161                     << ") differ (as expanded in memory)."
 162                     << std::endl
 163                     << "        compression : "
 164                     << GDCM_NAME_SPACE::Global::GetTS()->GetValue(ts) << std::endl;
 165
 166           std::cout << "   list of the first " << MAX_NUMBER_OF_DIFFERENCE
 167                     << " bytes differing (pos : original - written) :"
 168                     << std::endl;
 169
 170           for(unsigned int i=0, j1=0; i<dataSizeFixed && j1<MAX_NUMBER_OF_DIFFERENCE; i++)
 171           {
 172              if (abs ((int)imageData[i]-(int)imageDataWritten[i]) > 2)
 173              {
 174                 if (j1<MAX_NUMBER_OF_DIFFERENCE)
 175                    std::cout << std::dec << "(" << i << " : "
 176                      << std::hex
 177                      << (int)(imageData[i]) << " - "
 178                      << (int)(imageDataWritten[i]) << ") "
 179                      << std::dec;
 180                 ++j1;
 181               }
 182           }
 183           std::cout << std::endl;
 184
 185           file->Delete();
 186           filehelper->Delete();
 187           fileout->Delete();
 188           reread->Delete();
 189           nb_of_failure___++;
 190
 191           if (nbDiff/2 > 8 )  // last pixel of (DermaColorLossLess.dcm) is diferent. ?!?
 192                               // I don't want it to break the testsuite
 193              return 1;
 194           else
 195              return 0;
 196        }
 197        else
 198        {
 199           std::cout << std::endl << filename << " : some pixels"
 200                     << "  ("
 201                     << PixelType << " bAlloc:" << file->GetBitsAllocated() << " bStored:" << file->GetBitsStored()
 202                     << ") differ +/-1 (as expanded in memory)."
 203                     << std::endl
 204                     << "        compression : "
 205                     << GDCM_NAME_SPACE::Global::GetTS()->GetValue(ts) << std::endl;
 206
 207           std::cout << "   list of the first " << MAX_NUMBER_OF_DIFFERENCE
 208                     << " bytes differing (pos : original - written) :"
 209                     << std::endl;
 210
 211           for(unsigned int i=0, j=0; i<dataSizeFixed && j<MAX_NUMBER_OF_DIFFERENCE; i++)
 212           {
 213              if (imageData[i] != imageDataWritten[i])
 214              {
 215                 std::cout << std::hex << "(" << i << " : "
 216                          << std::hex << (int)(imageData[i]) << " - "
 217                          << std::hex << (int)(imageDataWritten[i]) << ") "
 218                          << std::dec;
 219                 ++j;
 220               }
 221           }
 222           std::cout << std::endl;
 223           nb_of_diffPM1___++;
 224        }
 225    }
 226    else
 227    {
 228       nb_of_success___ ++;
 229    }
 230    std::cout << "=============== 4...OK." << std::endl ;
 231    //////////////// Clean up:
 232    file->Delete();
 233    filehelper->Delete();
 234    fileout->Delete();
 235    reread->Delete();
 236
 237    return 0;
 238 }
 239
 240 // -------------------------------------------------------------------------------------------
 241
 242 int TestReadWriteReadCompare(int argc, char *argv[])
 243 {
 244    int result = 0;
 245    nb_of_success___ = 0;
 246    nb_of_failure___ = 0;
 247    nb_of_diffPM1___ = 0;
 248
 249    if (argc == 4)
 250       GDCM_NAME_SPACE::Debug::DebugOn();
 251
 252    if (argc >= 3)
 253    {
 254       const std::string input  = argv[1];
 255       const std::string output = argv[2];
 256       result += CompareInternal(input, output);
 257    }
 258    else if( argc > 4 || argc == 2 )
 259    {
 260       std::cout << "Please read the manual" << std::endl;
 261    }
 262    else
 263    {
 264       std::cout<< "Test::TestReadWriteReadCompare: description " << std::endl;
 265       std::cout << "   For all images in gdcmData (and not blacklisted in "
 266                    "Test/CMakeLists.txt)" << std::endl;
 267       std::cout << "   apply the following multistep test: " << std::endl;
 268       std::cout << "   step 1: parse the image (as gdcmFile) and call"
 269                 << " IsReadable(). " << std::endl;
 270       std::cout << "   step 2: write the corresponding image in DICOM V3 "
 271                 << "with explicit Value Representation " << std::endl
 272                 << "            in temporary file "
 273                 << "TestReadWriteReadCompare.dcm." << std::endl;
 274       std::cout << "   step 3: read the image written on step2 and call "
 275                 << " IsReadable(). " << std::endl;
 276       std::cout << "   step 4: compare (in memory with memcmp) that the two "
 277                 << "images " << std::endl
 278                 << "           match (as expanded by gdcm)." << std::endl;
 279
 280       int i = 0;
 281       int res =0;
 282       while( gdcmDataImages[i] != 0 )
 283       {
 284          std::string filename = GDCM_DATA_ROOT;
 285          filename += "/";
 286          filename += gdcmDataImages[i];
 287          res = CompareInternal(filename, "TestReadWriteReadCompare.dcm");
 288
 289          if (res == 1)
 290          {
 291             std::cout << "=============================== Failure on: " << gdcmDataImages[i] << std::endl;
 292             result ++;
 293          }
 294          i ++;
 295       }
 296    }
 297    std::cout << "==================================" << std::endl;
 298    std::cout << "nb of success  " << nb_of_success___ << std::endl;
 299    std::cout << "nb of failure  " << nb_of_failure___ << std::endl;
 300    std::cout << "nb of diff+/-1 " << nb_of_diffPM1___ << std::endl;
 301    return result;
 302 }