ImageSegmentComputer::ImageSegmentComputer(size_t numRows,
size_t numCols,
size_t numBytesPerPixel,
size_t maxRows,
Uint64 maxSize,
size_t rowsPerBlock,
size_t colsPerBlock) :
mNumRows(numRows),
mNumCols(numCols),
mNumBytesPerPixel(numBytesPerPixel),
mNumRowsLimit(maxRows),
mNumColsPaddedForBlocking(getActualDim(mNumCols, colsPerBlock)),
mNumRowsPerBlock(rowsPerBlock),
mMaxNumBytesPerSegment(maxSize),
mNumBytesTotal(static_cast<Uint64>(mNumBytesPerPixel) *
getActualDim(mNumRows, rowsPerBlock) *
mNumColsPaddedForBlocking)
{
if (maxRows > ILOC_MAX)
{
std::ostringstream ostr;
ostr << "Max rows was set to " << maxRows
<< " but it cannot be greater than " << ILOC_MAX
<< " per the NITF spec";
throw except::Exception(Ctxt(ostr.str()));
}
if (maxSize > NUM_BYTES_MAX)
{
std::ostringstream ostr;
ostr << "Max image segment size was set to " << maxSize
<< " but it cannot be greater than " << NUM_BYTES_MAX
<< " per the NITF spec";
throw except::Exception(Ctxt(ostr.str()));
}
computeImageInfo();
computeSegmentInfo();
}
void NITFImageInfo::compute()
{
computeImageInfo();
computeSegmentInfo();
}
