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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 "gdcmImageRegionReader.h"
#include "gdcmImageHelper.h"
#include "gdcmFilename.h"
#include "gdcmBoxRegion.h"
#include "gdcmTesting.h"
static int TestImageRegionRead(const char* filename, bool verbose = false)
{
using gdcm::System;
using gdcm::Testing;
if( verbose )
std::cerr << "Reading: " << filename << std::endl;
gdcm::Filename fn( filename );
// DMCPACS_ExplicitImplicit_BogusIOP.dcm is very difficult to handle since
// we need to read 3 attribute to detect the "well known" bug. However the third
// attribute is (b500,b700) which make ReadUpToTag(7fe0,0010) fails...
if( strcmp(fn.GetName(), "DMCPACS_ExplicitImplicit_BogusIOP.dcm" ) == 0
|| strcmp(fn.GetName(), "SC16BitsAllocated_8BitsStoredJ2K.dcm" ) == 0 // mismatch pixel format in JPEG 2000 vs DICOM
|| strcmp(fn.GetName(), "SC16BitsAllocated_8BitsStoredJPEG.dcm" ) == 0 // mismatch pixel format in JPEG vs DICOM
|| strcmp(fn.GetName(), "PHILIPS_Gyroscan-12-Jpeg_Extended_Process_2_4.dcm" ) == 0 // bogus JPEG cannot be streamed
|| strcmp(fn.GetName(), "US-YBR_FULL_422-EVRLE.dcm" ) == 0 // FIXME TODO
// FIXME: we should be able to handle those at some point:
|| strcmp(fn.GetName(), "JPEGNote_empty.dcm" ) == 0
|| strcmp(fn.GetName(), "JPEGNote_missing.dcm" ) == 0
|| strcmp(fn.GetName(), "JPEGNote_bogus.dcm" ) == 0
)
{
std::cerr << "Skipping impossible file: " << filename << std::endl;
return 0;
}
gdcm::ImageRegionReader reader;
reader.SetFileName( filename );
bool canReadInformation = reader.ReadInformation();
if (!canReadInformation)
{
std::cerr << "Cannot ReadInformation: " << filename << std::endl;
return 0; //unable to read tags as expected.
}
// Create directory first:
const char subdir[] = "TestImageRegionReader3";
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 );
outfilename += ".raw";
std::ofstream of( outfilename.c_str(), std::ios::binary );
int res = 0;
std::vector<unsigned int> dims =
gdcm::ImageHelper::GetDimensionsValue(reader.GetFile());
std::vector<char> vbuffer;
gdcm::BoxRegion box;
for( unsigned int z = 0; z < dims[2]; ++z )
{
const unsigned int xdelta = dims[0] / 1;
const unsigned int ydelta = dims[1] / 4;
size_t zlen;
bool b;
for( unsigned int y = 0; y < 4; ++y )
{
unsigned int maxy = ydelta + y * ydelta;
if( y == 3 ) maxy = dims[1];
box.SetDomain(0, xdelta - 1, 0 + y * ydelta, (unsigned int)(maxy - 1), z, z);
reader.SetRegion(box);
zlen = reader.ComputeBufferLength();
assert( zlen );
vbuffer.resize( zlen );
char* buffer = vbuffer.data();
b = reader.ReadIntoBuffer(buffer, zlen);
if( !b ) return 1;
assert( zlen );
of.write( buffer, zlen );
}
}
of.close();
char digest[33];
bool b = gdcm::Testing::ComputeFileMD5(outfilename.c_str(), digest);
if( !b )
{
std::cerr << "Could not ComputeFileMD5: " << outfilename << std::endl;
return 1;
}
const char *ref = gdcm::Testing::GetMD5FromFile(filename);
// FIXME: PC=1
if( strcmp(fn.GetName(), "ACUSON-24-YBR_FULL-RLE-b.dcm" ) == 0) ref = "2d7a28cae6c3b3183284d1b4ae08307f";
if( strcmp(fn.GetName(), "ACUSON-24-YBR_FULL-RLE.dcm" ) == 0) ref = "429f31f0b70bd515b3feeda5dea5eac0";
if( verbose )
{
std::cout << "ref=" << ref << std::endl;
std::cout << "md5=" << digest << std::endl;
}
if( !ref )
{
// new regression image needs a md5 sum
std::cout << "Missing md5 " << digest << " for: " << filename << std::endl;
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;
}
return res;
}
int TestImageRegionReader3(int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return TestImageRegionRead(filename, true);
}
// else
// First of get rid of warning/debug message
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 += TestImageRegionRead(filename);
++i;
}
return r;
}
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