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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"
#ifndef __fitscompress_h__
#define __fitscompress_h__
#include "file.h"
class FitsCompress : public FitsFile {
public:
enum QuantMethod {NONE,NODITHER,SUBDITHER1,SUBDITHER2};
protected:
int bitpix_;
char* type_;
int width_;
int height_;
int depth_;
int ww_;
int hh_;
int dd_;
double bscale_;
double bzero_;
unsigned int blank_;
char* zmaskcmp_;
size_t tilesize_;
size_t size_;
FitsColumn* gzcompress_;
FitsColumn* compress_;
FitsColumn* uncompress_;
FitsColumn* zscale_;
FitsColumn* zzero_;
FitsColumn* zblank_;
FitsColumn* null_;
int hasScaling_;
int hasBlank_;
QuantMethod quantize_;
int quantOffset_;
int numRandom_;
float* random_;
int randSeed_;
int randNext_;
protected:
int initHeader(FitsFile*);
void initRandom(int);
double unquantize(double, double, double);
double unquantizeZero(double, double, double);
public:
FitsCompress(FitsFile*);
virtual ~FitsCompress();
};
template<class T>
class FitsCompressm : public FitsCompress {
private:
int inflate(FitsFile*);
void swapBytes();
protected:
T swap(T* ptr);
protected:
void uncompress(FitsFile* fits);
int gzcompressed(T*, char*, char*, int, int, int, int, int, int);
virtual int compressed(T*, char*, char*, int, int, int, int, int, int) =0;
int uncompressed(T*, char*, char*, int, int, int, int, int, int);
T getValue(char*, double, double, int);
T getValue(short*, double, double, int);
T getValue(int*, double, double, int);
T getValue(long long*, double, double, int);
T getValue(float*, double, double, int);
T getValue(double*, double, double, int);
public:
FitsCompressm(FitsFile*);
};
class FitsPostNext : public FitsFile {
public:
FitsPostNext(FitsFile* prev);
};
#endif
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