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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 "gdcmPresentationContextAC.h"
#include "gdcmSwapper.h"
#include <limits>
namespace gdcm
{
namespace network
{
const uint8_t PresentationContextAC::ItemType = 0x21;
const uint8_t PresentationContextAC::Reserved2 = 0x00;
const uint8_t PresentationContextAC::Reserved6 = 0x00;
const uint8_t PresentationContextAC::Reserved8 = 0x00;
PresentationContextAC::PresentationContextAC()
{
ID = 1; // odd [1-255]
Result = 0;
ItemLength = 8;
assert( (size_t)ItemLength + 4 == Size() );
}
std::istream &PresentationContextAC::Read(std::istream &is)
{
//uint8_t itemtype = 0x0;
//is.read( (char*)&itemtype, sizeof(ItemType) );
//assert( itemtype == ItemType );
uint8_t reserved2;
is.read( (char*)&reserved2, sizeof(Reserved2) );
uint16_t itemlength;
is.read( (char*)&itemlength, sizeof(ItemLength) );
SwapperDoOp::SwapArray(&itemlength,1);
ItemLength = itemlength;
uint8_t id;
is.read( (char*)&id, sizeof(ID) );
ID = id;
uint8_t reserved6;
is.read( (char*)&reserved6, sizeof(Reserved6) );
uint8_t result;
is.read( (char*)&result, sizeof(Result) );
Result = result; // 0-4
uint8_t reserved8;
is.read( (char*)&reserved8, sizeof(Reserved6) );
SubItems.Read( is );
assert( (size_t)ItemLength + 4 == Size() );
return is;
}
const std::ostream &PresentationContextAC::Write(std::ostream &os) const
{
os.write( (char*)&ItemType, sizeof(ItemType) );
os.write( (char*)&Reserved2, sizeof(Reserved2) );
//os.write( (char*)&ItemLength, sizeof(ItemLength) );
uint16_t copy = ItemLength;
SwapperDoOp::SwapArray(©,1);
os.write( (char*)©, sizeof(ItemLength) );
os.write( (char*)&ID, sizeof(ID) );
os.write( (char*)&Reserved6, sizeof(Reserved6) );
os.write( (char*)&Result, sizeof(Result) );
os.write( (char*)&Reserved8, sizeof(Reserved8) );
SubItems.Write(os);
assert( (size_t)ItemLength + 4 == Size() );
return os;
}
size_t PresentationContextAC::Size() const
{
size_t ret = 0;
ret += sizeof(ItemType);
ret += sizeof(Reserved2);
ret += sizeof(ItemLength);
ret += sizeof(ID);
ret += sizeof(Reserved6);
ret += sizeof(Result);
ret += sizeof(Reserved8);
ret += SubItems.Size();
assert(ret <= (size_t)std::numeric_limits<uint16_t>::max);
assert(ret >= 4);
return ret;
}
void PresentationContextAC::SetTransferSyntax( TransferSyntaxSub const &ts )
{
SubItems = ts;
ItemLength = (uint16_t)(Size() - 4);
assert( (size_t)ItemLength + 4 == Size() );
}
void PresentationContextAC::Print(std::ostream &os) const
{
os << "ID: " << (int)ID << std::endl;
os << "Result: " << (int)Result << std::endl;
os << "TransferSyntax: ";
SubItems.Print( os );
}
void PresentationContextAC::SetPresentationContextID( uint8_t id )
{
ID = id;
}
} // end namespace network
} // end namespace gdcm
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