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// Copyright (C) 1999-2018
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#include "nrrd.h"
#include "head.h"
#include "util.h"
FitsNRRD::FitsNRRD(FitsFile* fits)
{
byteswap_ = fits->byteswap();
endian_ = fits->endian();
pBitpix_ = fits->pBitpix();
pWidth_ = fits->pWidth();
pHeight_ = fits->pHeight();
pDepth_ = fits->pDepth();
size_ = (size_t)pWidth_*pHeight_*pDepth_;
}
FitsNRRD::~FitsNRRD()
{
if (data_)
delete [] (char*)data_;
}
int FitsNRRD::initHeader(FitsFile* fits)
{
// simple check
if (!pWidth_ || !pHeight_ || !pBitpix_)
return 0;
// create header
head_ = new FitsHead(pWidth_, pHeight_, pDepth_, pBitpix_);
if (!head_->isValid())
return 0;
// other
primary_ = fits->primary();
managePrimary_ = 0;
inherit_ = head_->inherit();
return 1;
}
template<class T> FitsNRRDm<T>::FitsNRRDm(FitsFile* fits)
: FitsNRRD(fits)
{
}
template <class T> void FitsNRRDm<T>::uncompress(FitsFile* fits)
{
if (!initHeader(fits))
return;
T* dest = new T[size_];
if (!dest) {
internalError("Fitsy++ nrrd unable to allocate memory");
return;
}
memset(dest, 0, size_*sizeof(T));
compressed(dest, (char*)fits->data(), fits->dataSize()-fits->dataSkip());
data_ = dest;
dataSize_ = size_;
dataSkip_ = 0;
// all done
valid_ = 1;
}
template class FitsNRRDm<unsigned char>;
template class FitsNRRDm<short>;
template class FitsNRRDm<unsigned short>;
template class FitsNRRDm<int>;
template class FitsNRRDm<long long>;
template class FitsNRRDm<float>;
template class FitsNRRDm<double>;
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