-/*=========================================================================
-
- Program: gdcm
- Module: $RCSfile: TestReadWriteReadCompare.cxx,v $
- Language: C++
- Date: $Date: 2005/02/02 10:06:32 $
- Version: $Revision: 1.10 $
-
- 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 "gdcmFile.h"
-#include "gdcmFileHelper.h"
-
-//Generated file:
-#include "gdcmDataImages.h"
-
-int main(int argc, char *argv[])
-{
- if (argc<2)
- {
- std::cerr << "Test::TestReadWriteReadCompare: Usage: " << argv[0]
- << " fileToCheck.dcm " << std::endl;
- }
-
- std::cout<< "Test::TestReadWriteReadCompare: description " << std::endl;
- std::cout << " For all images in gdcmData (and not blacklisted in "
- "Test/CMakeLists.txt)" << std::endl;
- std::cout << " apply the following multistep test: " << std::endl;
- std::cout << " step 1: parse the image (as gdcmFile) and call"
- << " IsReadable(). " << std::endl;
- std::cout << " step 2: write the corresponding image in DICOM V3 "
- << "with explicit" << std::endl
- << " Value Representation in temporary file "
- << "TestReadWriteReadCompare.dcm." << std::endl;
- std::cout << " step 3: read the image written on step2 and call "
- << " IsReadable(). " << std::endl;
- std::cout << " step 4: compare (in memory with memcmp) that the two "
- << "images " << std::endl
- << " match (as expanded by gdcm)." << std::endl;
-
- //int i = 0;
- //while( gdcmDataImages[i] != 0 )
- {
- std::string filename = GDCM_DATA_ROOT;
- filename += "/";
- //filename += gdcmDataImages[i++];
- filename +=argv[1];
-
- std::cout << " Testing: " << filename << std::endl;
-
- //////////////// Step 1 (see above description):
-
- gdcm::File *header = new gdcm::File( filename );
- if( !header->IsReadable() )
- {
- std::cerr << "Test::TestReadWriteReadCompare: Image not gdcm compatible:"
- << filename << std::endl;
- delete header;
- return 1;
- }
- std::cout << " step 1 ...";
-
- //////////////// Step 2:
-
- gdcm::FileHelper *file = new gdcm::FileHelper( header );
- int dataSize = file->GetImageDataSize();
- uint8_t* imageData = file->GetImageData(); //EXTREMELY IMPORTANT
- // Sure, it is : It's up to the user to decide if he wants to
- // GetImageData or if he wants to GetImageDataRaw
- // (even if we do it by setting a flag, he will have to decide)
-
- /// \todo Following line commented out because gdcmFile::SetImageData() is
- /// brain dead: it sets ImageDataSize to its argument and PixelRead to a.
- /// Later on, when writing gdcmFile::WriteBase()
- /// and because PixelRead == 1 we call
- /// PixelElement->SetLength( ImageDataSizeRaw );
- /// where we use ImageDataSizeRAW instead of ImageDataSize !
- /// But when the original image made the transformation LUT -> RGB,
- /// ImageDataSizeRaw is the third of ImageDataSize, and there is no
- /// reason (since we called gdcmFile::SetImageData) to use the Raw image
- /// size... This "bug" in gdcmFile made that we had to black list
- /// images 8BitsUncompressedColor.dcm, OT-PAL-8-face.dcm and
- /// US-PAL-8-10x-echo.dcm...
- /// In conclusion fix gdcmFile, and then uncomment the following line.
-
- // --> I did. ctest doesn't break. But ... is it enought to say it's OK ?
-
- file->SetImageData(imageData, dataSize);
-
- file->WriteDcmExplVR( "TestReadWriteReadCompare.dcm" );
- std::cout << "2...";
-
- //////////////// Step 3:
-
- gdcm::FileHelper *reread = new gdcm::FileHelper( "TestReadWriteReadCompare.dcm" );
- if( !reread->GetFile()->IsReadable() )
- {
- std::cerr << "Test::TestReadWriteReadCompare: Could not reread image "
- << "written:" << filename << std::endl;
- delete header;
- delete file;
- delete reread;
- return 1;
- }
- std::cout << "3...";
- // For the next step:
- int dataSizeWritten = reread->GetImageDataSize();
- uint8_t *imageDataWritten = reread->GetImageData();
-
- //////////////// Step 4:
-
- if (dataSize != dataSizeWritten)
- {
- std::cout << std::endl
- << " Pixel areas lengths differ: "
- << dataSize << " # " << dataSizeWritten << std::endl;
- delete header;
- delete file;
- delete reread;
- return 1;
- }
-
- if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
- {
- (void)res;
- std::cout << std::endl
- << " Pixel differ (as expanded in memory)." << std::endl;
- delete header;
- delete file;
- delete reread;
- return 1;
- }
- std::cout << "4...OK." << std::endl ;
-
- //////////////// Clean up:
- delete header;
- delete file;
- delete reread;
- }
-
- return 0;
-}