//*******************************************************************

// Copyright (C) 2007 Ball Aerspace & Technologies Corp

//

// LICENSE: See top level LICENSE.txt file.

//

// Author: Lucas Eckels

//

// Description: Nitf support class

//

//********************************************************************

// $Id: $

#include <ossim/support_data/ossimNitfImageDataMaskV2_1.h>

#include <ossim/base/ossimEndian.h>

ossimNitfImageDataMaskV2_1::ossimNitfImageDataMaskV2_1() : theBlockLength(0)

{

}

void ossimNitfImageDataMaskV2_1::setBlockCount(ossim_uint32 blockCount)

{

theIncludedBlocks.resize(blockCount, true);

}

void ossimNitfImageDataMaskV2_1::setBlockLengthInBytes(ossim_uint32 blockLength)

{

theBlockLength = blockLength;

}

void ossimNitfImageDataMaskV2_1::setIncludeBlock(ossim_uint32 blockNumber, bool included)

{

if (blockNumber < theIncludedBlocks.size())

{

theIncludedBlocks[blockNumber] = included;

}

}

void ossimNitfImageDataMaskV2_1::writeStream(std::ostream &out)

{

ossimEndian endian;

ossim_uint32 imdatoff = 4 + 2 + 2 + 2 + 4 * theIncludedBlocks.size();

ossim_uint16 bmrlnth = 4; // only support band mask

ossim_uint16 tmrlnth = 0;

ossim_uint16 tpxcdlnth = 0;

if(endian.getSystemEndianType() == OSSIM_LITTLE_ENDIAN)

{

endian.swap(imdatoff);

endian.swap(bmrlnth);

endian.swap(tmrlnth);

endian.swap(tpxcdlnth);

}

out.write(reinterpret_cast<char*>(&imdatoff), sizeof(imdatoff));

out.write(reinterpret_cast<char*>(&bmrlnth), sizeof(bmrlnth));

out.write(reinterpret_cast<char*>(&tmrlnth), sizeof(tmrlnth));

out.write(reinterpret_cast<char*>(&tpxcdlnth), sizeof(tpxcdlnth));

ossim_uint32 position = 0;

// Band Masks

for (std::vector<bool>::const_iterator iter = theIncludedBlocks.begin();

iter != theIncludedBlocks.end(); ++iter)

{

ossim_uint32 offset = 0xFFFFFFFF;

if (*iter)

{

offset = position;

position += theBlockLength;

}

if (endian.getSystemEndianType() == OSSIM_LITTLE_ENDIAN)

{

endian.swap(offset);

}

out.write(reinterpret_cast<char*>(&offset), sizeof(offset));

}

// Pad pixels not supported, always set to length 0, so don't need to write anything

}