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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 "gdcmFileStreamer.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmReader.h"
#include "gdcmFilename.h"
#include "gdcmImageRegionReader.h"
#include "gdcmImageHelper.h"
int TestFileStream4(const char *filename, bool verbose = false)
{
using namespace gdcm;
// Create directory first:
const char subdir[] = "TestFileStreamer4";
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 );
gdcm::Filename fn( filename );
const char *name = fn.GetName();
// Special handling:
bool checktemplate = false;
if( strcmp(name, "DMCPACS_ExplicitImplicit_BogusIOP.dcm" ) == 0
|| strcmp(name, "ExplicitVRforPublicElementsImplicitVRforShadowElements.dcm") == 0
|| strcmp(name, "SIEMENS_MAGNETOM-12-MONO2-GDCM12-VRUN.dcm") == 0
)
{
checktemplate = true;
}
if( strcmp(name, "JPEGNote_empty.dcm" ) == 0
|| strcmp(name, "JPEGNote_missing.dcm" ) == 0 )
{
// cannot read dims from DICOM header...
return 0;
}
gdcm::ImageRegionReader irr;
irr.SetFileName( filename );
if( !irr.ReadInformation() )
{
//std::cerr << "not an image: " << filename << std::endl;
return 0;
}
gdcm::File & file = irr.GetFile();
std::vector<unsigned int> dims =
gdcm::ImageHelper::GetDimensionsValue(file);
PixelFormat pf = gdcm::ImageHelper::GetPixelFormatValue(file);
int pixsize = pf.GetPixelSize();
const size_t computedlen = dims[0] * dims[1] * dims[2] * pixsize;
const FileMetaInformation &header = file.GetHeader();
const TransferSyntax &ts = header.GetDataSetTransferSyntax();
if( verbose )
{
std::cout << "Processing: " << filename << std::endl;
std::cout << "Generating: " << outfilename << std::endl;
}
std::vector<char> vbuffer;
assert( dims[0] );
vbuffer.resize( dims[0] * pixsize );
char *buffer = vbuffer.data();
const size_t len = vbuffer.size();
gdcm::FileStreamer fs;
fs.ReserveDataElement( computedlen );
fs.SetTemplateFileName( filename );
fs.CheckTemplateFileName( checktemplate );
fs.SetOutputFileName( outfilename.c_str() );
const gdcm::Tag pixeldata(0x7fe0,0x0010);
bool b = true;
if( strcmp(name, "libido1.0-vol.acr" ) != 0 ) // use Planes instead of Number of Frames
{
b = fs.CheckDataElement( pixeldata ); // will be checking file size
}
if( !b )
{
std::cerr << "Failed to CheckDataElement: " << outfilename << std::endl;
return 1;
}
b = fs.StartDataElement( pixeldata );
if( !b )
{
std::cerr << "Failed to StartDataElement: " << outfilename << std::endl;
return 1;
}
for( unsigned int z = 0; z < dims[2]; ++z )
for( unsigned int y = 0; y < dims[1]; ++y )
{
b = fs.AppendToDataElement( pixeldata, buffer, len );
if( !b )
{
std::cerr << "Failed to AppendToDataElement: " << outfilename << std::endl;
return 1;
}
}
if( !fs.StopDataElement( pixeldata ) )
{
if( ts.IsEncapsulated() )
{
// Everything is under control
return 0;
}
std::cerr << "Failed to StopDataElement: " << outfilename << std::endl;
return 1;
}
// Read back and check:
gdcm::Reader r;
r.SetFileName( outfilename.c_str() );
if( !r.Read() )
{
std::cerr << "Failed to read: " << outfilename << std::endl;
return 1;
}
gdcm::File & f = r.GetFile();
gdcm::DataSet & ds = f.GetDataSet();
if( !ds.FindDataElement( pixeldata ) )
{
std::cerr << "No pixel data: " << outfilename << std::endl;
return 1;
}
const gdcm::DataElement & de = ds.GetDataElement( pixeldata );
const gdcm::ByteValue *bv = de.GetByteValue();
if( bv->GetLength() != computedlen )
{
std::cerr << "Mismatch len: " << outfilename << " : " << bv->GetLength() <<
" vs " << computedlen << std::endl;
return 1;
}
const char *p = bv->GetPointer();
const char *end = p + dims[0] * dims[1] * dims[2];
int res = 0;
for( ; p != end; ++p )
{
res += *p;
}
if( res )
{
std::cerr << "Mismatch: " << outfilename << std::endl;
}
return res;
}
int TestFileStreamer4(int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return TestFileStream4(filename, true);
}
// else
gdcm::Trace::DebugOff();
gdcm::Trace::WarningOff();
gdcm::Trace::ErrorOff();
int r = 0, i = 0;
const char *filename;
const char * const *filenames = gdcm::Testing::GetFileNames();
while( (filename = filenames[i]) )
{
r += TestFileStream4( filename );
++i;
}
return r;
}
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