InputFile::InputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::IStream &is, int numThreads):
_data (new Data (numThreads))
{
_data->_streamData=NULL;
_data->_deleteStream=false;
try
{
readMagicNumberAndVersionField(is, _data->version);
//
// Backward compatibility to read multpart file.
//
if (isMultiPart(_data->version))
{
compatibilityInitialize(is);
}
else
{
_data->_streamData = new InputStreamMutex();
_data->_streamData->is = &is;
_data->header.readFrom (*_data->_streamData->is, _data->version);
// fix type attribute in single part regular image types
// (may be wrong if an old version of OpenEXR converts
// a tiled image to scanline or vice versa)
if(!isNonImage(_data->version) &&
!isMultiPart(_data->version) &&
_data->header.hasType())
{
_data->header.setType(isTiled(_data->version) ? TILEDIMAGE : SCANLINEIMAGE);
}
_data->header.sanityCheck (isTiled (_data->version));
initialize();
}
}
catch (IEX_NAMESPACE::BaseExc &e)
{
if (_data && !_data->multiPartBackwardSupport && _data->_streamData) delete _data->_streamData;
if (_data) delete _data;
_data=NULL;
REPLACE_EXC (e, "Cannot read image file "
"\"" << is.fileName() << "\". " << e.what());
throw;
}
catch (...)
{
if (_data && !_data->multiPartBackwardSupport && _data->_streamData) delete _data->_streamData;
if (_data) delete _data;
_data=NULL;
throw;
}
}
MultiPartInputFile::MultiPartInputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::IStream& is,
int numThreads,
bool reconstructChunkOffsetTable):
_data(new Data(false, numThreads, reconstructChunkOffsetTable))
{
try
{
_data->is = &is;
initialize();
}
catch (IEX_NAMESPACE::BaseExc &e)
{
delete _data;
REPLACE_EXC (e, "Cannot read image file "
"\"" << is.fileName() << "\". " << e);
throw;
}
catch (...)
{
delete _data;
throw;
}
}