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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.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 notice for more information.
=========================================================================*/
#include "gdcmFileDerivation.h"
#include "gdcmReader.h"
#include "gdcmWriter.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmUIDGenerator.h"
int TestFileDerive(const char *subdir, const char* filename)
{
using namespace gdcm;
Reader reader;
reader.SetFileName( filename );
if ( !reader.Read() )
{
std::cerr << "Failed to read: " << filename << std::endl;
return 1;
}
FileDerivation fd;
fd.SetFile( reader.GetFile() );
// Setup some actions:
// TODO we should reference the original image
File &file = reader.GetFile();
DataSet &ds = file.GetDataSet();
if( !ds.FindDataElement( Tag(0x0008,0x0016) )
|| ds.GetDataElement( Tag(0x0008,0x0016) ).IsEmpty() )
{
std::cerr << "Missing sop class giving up: " << filename << std::endl;
return 0;
}
if( !ds.FindDataElement( Tag(0x0008,0x0018) )
|| ds.GetDataElement( Tag(0x0008,0x0018) ).IsEmpty() )
{
std::cerr << "Missing sop instance giving up: " << filename << std::endl;
return 0;
}
const DataElement &sopclassuid = ds.GetDataElement( Tag(0x0008,0x0016) );
const DataElement &sopinstanceuid = ds.GetDataElement( Tag(0x0008,0x0018) );
// Make sure that const char* pointer will be properly padded with \0 char:
std::string sopclassuid_str( sopclassuid.GetByteValue()->GetPointer(), sopclassuid.GetByteValue()->GetLength() );
std::string sopinstanceuid_str( sopinstanceuid.GetByteValue()->GetPointer(), sopinstanceuid.GetByteValue()->GetLength() );
fd.AddReference( sopclassuid_str.c_str(), sopinstanceuid_str.c_str() );
// CID 7202 Source Image Purposes of Reference
// {"DCM",121320,"Uncompressed predecessor"},
fd.SetPurposeOfReferenceCodeSequenceCodeValue( 121320 );
// CID 7203 Image Derivation
// { "DCM",113040,"Lossy Compression" },
fd.SetDerivationCodeSequenceCodeValue( 113040 );
fd.SetDerivationDescription( "lossy conversion" );
if( !fd.Derive() )
{
std::cerr << "Failed to derive: " << filename << std::endl;
if( ds.FindDataElement( Tag(0x8,0x2112) ) )
{
return 0;
}
return 1;
}
// Create directory first:
std::string tmpdir = Testing::GetTempDirectory( subdir );
if( !System::FileIsDirectory( tmpdir.c_str() ) )
{
System::MakeDirectory( tmpdir.c_str() );
//return 1;
}
std::string outfilename = Testing::GetTempFilename( filename, subdir );
Writer writer;
writer.SetFileName( outfilename.c_str() );
writer.SetFile( reader.GetFile() );
if( !writer.Write() )
{
std::cerr << "Failed to write: " << outfilename << std::endl;
return 1;
}
// now let's try to read it back in:
Reader reader2;
reader2.SetFileName( outfilename.c_str() );
if ( !reader2.Read() )
{
std::cerr << "Could not reread written file: " << outfilename << std::endl;
return 1;
}
return 0;
}
int TestFileDerivation( int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return TestFileDerive( argv[0], filename);
}
// else
gdcm::Trace::DebugOff();
gdcm::Trace::WarningOff();
int r = 0, i = 0;
const char *filename;
const char * const *filenames = gdcm::Testing::GetFileNames();
while( (filename = filenames[i]) )
{
r += TestFileDerive( argv[0], filename );
++i;
}
return r;
}
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