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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 "gdcmFileChangeTransferSyntax.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmReader.h"
#include "gdcmImageReader.h"
#include "gdcmFilename.h"
#include "gdcmImageChangePlanarConfiguration.h"
#include "gdcmByteSwap.h"
static int TestFileChangeTransferSyntax4Func(const char *filename, bool verbose = false)
{
using namespace gdcm;
if( verbose )
std::cout << "Processing: " << filename << std::endl;
// Create directory first:
const char subdir[] = "TestFileChangeTransferSyntax4";
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 );
if( verbose )
std::cout << "Generating: " << outfilename << std::endl;
const gdcm::TransferSyntax ts( TransferSyntax::RLELossless );
gdcm::FileChangeTransferSyntax fcts;
fcts.SetTransferSyntax( ts );
fcts.SetInputFileName( filename );
fcts.SetOutputFileName( outfilename.c_str() );
ImageCodec *ic = fcts.GetCodec();
if( !ic )
{
return 1;
}
if( !fcts.Change() )
{
gdcm::Reader reader;
reader.SetFileName( filename );
if( !reader.Read() )
{
std::cerr << "not dicom" << std::endl;
return 1;
}
const gdcm::File & file = reader.GetFile();
const gdcm::FileMetaInformation & fmi = file.GetHeader();
const TransferSyntax &tsref = fmi.GetDataSetTransferSyntax();
if( tsref.IsEncapsulated() )
{
if( verbose )
std::cout << "Will not generate (encaps): " << outfilename << std::endl;
return 0;
}
gdcm::Filename fn( filename );
const char *name = fn.GetName();
// Special handling:
if( strcmp(name, "CT-MONO2-12-lomb-an2.acr" ) == 0
|| strcmp(name, "LIBIDO-8-ACR_NEMA-Lena_128_128.acr") == 0
|| strcmp(name, "gdcm-ACR-LibIDO.acr") == 0
|| strcmp(name, "gdcm-MR-SIEMENS-16-2.acr") == 0
|| strcmp(name, "libido1.0-vol.acr") == 0
|| strcmp(name, "test.acr") == 0
|| strcmp(name, "LIBIDO-24-ACR_NEMA-Rectangle.dcm") == 0
|| strcmp(name, "MR_Spectroscopy_SIEMENS_OF.dcm") == 0 // not an image
|| strcmp(name, "ELSCINT1_PMSCT_RLE1.dcm") == 0
|| strcmp(name, "ELSCINT1_PMSCT_RLE1_priv.dcm") == 0
|| strcmp(name, "gdcm-CR-DCMTK-16-NonSamplePerPix.dcm") == 0
|| strcmp(name, "SIEMENS_MAGNETOM-12-ACR_NEMA_2-Modern.dcm") == 0
|| strcmp(name, "PrivateGEImplicitVRBigEndianTransferSyntax16Bits.dcm") == 0 // Implicit VR Big Endian DLX (G.E Private)
|| strcmp(name, "MR_GE_with_Private_Compressed_Icon_0009_1110.dcm") == 0 // Explicit VR Big Endian
|| strcmp(name, "US-RGB-8-epicard.dcm") == 0 // Explicit VR Big Endian
|| strcmp(name, "GE_DLX-8-MONO2-PrivateSyntax.dcm") == 0 // Implicit VR Big Endian DLX (G.E Private)
|| strcmp(name, "GE_CT_With_Private_compressed-icon.dcm") == 0 // Explicit VR Big Endian
|| strcmp(name, "JDDICOM_Sample2-dcmdjpeg.dcm") == 0 // cannot recreate FMI
|| strcmp(name, "DMCPACS_ExplicitImplicit_BogusIOP.dcm") == 0 // ImageRegionReader does not handle it
|| strcmp(name, "unreadable.dcm") == 0 // No Pixel Data (old ACR-NEMA)
|| strcmp(name, "US-YBR_FULL_422-EVRLE.dcm") == 0 // packed ybr422
|| strncmp(name, "DICOMDIR", 8) == 0 // DICOMDIR*
|| strncmp(name, "dicomdir", 8) == 0 // dicomdir*
)
{
if( verbose )
std::cout << "Will not generate: " << outfilename << std::endl;
return 0;
}
std::cerr << "Could not change: " << filename << std::endl;
return 1;
}
// Let's read that file back in !
gdcm::ImageReader reader2;
reader2.SetFileName( outfilename.c_str() );
if ( !reader2.Read() )
{
std::cerr << "Could not even reread our generated file : " << outfilename << std::endl;
return 1;
}
// Check that after decompression we still find the same thing:
int res = 0;
gdcm::Image img = reader2.GetImage();
int pc = 0;
// When recompressing: US-RGB-8-epicard.dcm, make sure to compute the md5 using the
// same original Planar Configuration...
if( (int)img.GetPlanarConfiguration() != pc )
{
gdcm::ImageChangePlanarConfiguration icpc;
icpc.SetInput( reader2.GetImage() );
icpc.SetPlanarConfiguration( pc );
icpc.Change();
img = icpc.GetOutput();
}
//std::cerr << "Success to read image from file: " << filename << std::endl;
unsigned long len = img.GetBufferLength();
char* buffer = new char[len];
bool res2 = img.GetBuffer(buffer);
if( !res2 )
{
std::cerr << "could not get buffer: " << outfilename << std::endl;
return 1;
}
// On big Endian system we have byteswapped the buffer (duh!)
// Since the md5sum is byte based there is now way it would detect
// that the file is written in big endian word, so comparing against
// a md5sum computed on LittleEndian would fail. Thus we need to
// byteswap (again!) here:
#ifdef GDCM_WORDS_BIGENDIAN
if( img.GetPixelFormat().GetBitsAllocated() == 16 )
{
assert( !(len % 2) );
assert( img.GetPhotometricInterpretation() == gdcm::PhotometricInterpretation::MONOCHROME1
|| img.GetPhotometricInterpretation() == gdcm::PhotometricInterpretation::MONOCHROME2 );
gdcm::ByteSwap<unsigned short>::SwapRangeFromSwapCodeIntoSystem(
(unsigned short*)buffer, gdcm::SwapCode::LittleEndian, len/2);
}
#endif
const char *ref = gdcm::Testing::GetMD5FromFile(filename);
char digest[33];
gdcm::Testing::ComputeMD5(buffer, len, digest);
if( !ref )
{
// new regression image needs a md5 sum
std::cerr << "Missing md5 " << digest << " for: " << filename << std::endl;
//assert(0);
res = 1;
}
else if( strcmp(digest, ref) != 0 )
{
std::cerr << "Problem reading image from: " << filename << std::endl;
std::cerr << "Found " << digest << " instead of " << ref << std::endl;
res = 1;
}
if(res)
{
std::cerr << "problem with: " << outfilename << std::endl;
}
if( verbose )
{
std::cout << "file was written in: " << outfilename << std::endl;
}
delete[] buffer;
return res;
}
int TestFileChangeTransferSyntax4(int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return TestFileChangeTransferSyntax4Func(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 += TestFileChangeTransferSyntax4Func( filename );
++i;
}
return r;
}
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