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// Copyright (C) 1999-2017
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#include <iostream>
#include <sstream>
#include <iomanip>
using namespace std;
#include "rice.h"
extern "C" {
int fits_rdecomp (unsigned char *c,
int clen,
unsigned int array[],
int nx,
int nblock);
int fits_rdecomp_short (unsigned char *c,
int clen,
unsigned short array[],
int nx,
int nblock);
int fits_rdecomp_byte (unsigned char *c,
int clen,
unsigned char array[],
int nx,
int nblock);
}
template<class T> FitsRicem<T>::FitsRicem(FitsFile* fits)
: FitsCompressm<T>(fits)
{
// rice parameters
block_ = 32;
bytepix_ = 4;
noisebit_ = 4;
char name[] = "ZNAME ";
char val[] = "ZVAL ";
for (int ii=0; ii<9; ii++) {
name[5] = '0'+ii;
val[4] = '0'+ii;
if (fits->find(name)) {
char* which = fits->getString(name);
if (!strncmp(which,"BLOCK",4))
block_ = fits->getInteger(val,32);
else if (!strncmp(which,"BYTEPIX",4))
bytepix_ = fits->getInteger(val,4);
else if (!strncmp(which,"NOISEBIT",4))
noisebit_ = fits->getInteger(val,4);
delete [] which;
}
}
FitsCompressm<T>::uncompress(fits);
}
template <class T> int FitsRicem<T>::compressed(T* dest, char* sptr,
char* heap,
int kkstart, int kkstop,
int jjstart, int jjstop,
int iistart, int iistop)
{
double zs = FitsCompressm<T>::bscale_;
if (FitsCompressm<T>::zscale_)
zs = FitsCompressm<T>::zscale_->value(sptr,0);
double zz = FitsCompressm<T>::bzero_;
if (FitsCompressm<T>::zzero_)
zz = FitsCompressm<T>::zzero_->value(sptr,0);
int blank = FitsCompressm<T>::blank_;
if (FitsCompressm<T>::zblank_)
blank = (int)FitsCompressm<T>::zblank_->value(sptr,0);
int icnt=0;
unsigned char* ibuf = (unsigned char*)((FitsBinColumnArray*)FitsCompressm<T>::compress_)->get(heap, sptr, &icnt);
// ibuf can be NULL
if (!ibuf || !icnt)
return 0;
int ocnt = FitsCompressm<T>::tilesize_;
int ll=0;
switch (bytepix_) {
case 1:
{
char* obuf = new char[ocnt];
if (fits_rdecomp_byte(ibuf, icnt, (unsigned char*)obuf, ocnt, block_)) {
internalError("Fitsy++ rice bad inflate result");
return 0;
}
for (int kk=kkstart; kk<kkstop; kk++)
for (int jj=jjstart; jj<jjstop; jj++)
for (int ii=iistart; ii<iistop; ii++,ll++) {
// very carefull about type conversions
size_t id = kk*FitsCompressm<T>::width_*FitsCompressm<T>::height_ + jj*FitsCompressm<T>::width_ + ii;
T val = FitsCompressm<T>::getValue(obuf+ll,zs,zz,blank);
dest[id] = val;
}
if (obuf)
delete [] obuf;
}
break;
case 2:
{
short* obuf = new short[ocnt];
if (fits_rdecomp_short(ibuf, icnt, (unsigned short*)obuf, ocnt, block_)) {
internalError("Fitsy++ rice bad inflate result");
return 0;
}
for (int kk=kkstart; kk<kkstop; kk++)
for (int jj=jjstart; jj<jjstop; jj++)
for (int ii=iistart; ii<iistop; ii++,ll++) {
// very carefull about type conversions
size_t id = kk*FitsCompressm<T>::width_*FitsCompressm<T>::height_ + jj*FitsCompressm<T>::width_ + ii;
T val = FitsCompressm<T>::getValue(obuf+ll,zs,zz,blank);
dest[id] = val;
}
if (obuf)
delete [] obuf;
}
break;
case 4:
{
int* obuf = new int[ocnt];
if (fits_rdecomp(ibuf, icnt, (unsigned int*)obuf, ocnt, block_)) {
internalError("Fitsy++ rice bad inflate result");
return 0;
}
for (int kk=kkstart; kk<kkstop; kk++)
for (int jj=jjstart; jj<jjstop; jj++)
for (int ii=iistart; ii<iistop; ii++,ll++) {
// very carefull about type conversions
int id = kk*FitsCompressm<T>::width_*FitsCompressm<T>::height_ + jj*FitsCompressm<T>::width_ + ii;
T val = FitsCompressm<T>::getValue(obuf+ll,zs,zz,blank);
dest[id] = val;
}
if (obuf)
delete [] obuf;
}
break;
}
return 1;
}
template class FitsRicem<unsigned char>;
template class FitsRicem<short>;
template class FitsRicem<unsigned short>;
template class FitsRicem<int>;
template class FitsRicem<long long>;
template class FitsRicem<float>;
template class FitsRicem<double>;
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