/usr/include/rtd/LongImageData.h is in skycat 3.1.2+starlink1~b-8+b2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | // -*-c++-*-
/*
* E.S.O. - VLT project
*
* "@(#) $Id: LongImageData.h,v 1.1.1.1 2009/03/31 14:11:52 cguirao Exp $"
* $Id: LongImageData.h,v 1.1.1.1 2009/03/31 14:11:52 cguirao Exp $
*
* LongImageData.h - class definitions for class LongImageData
*
* See the man page ImageData(3) for a complete description of this class
* library.
*
* who when what
* -------------- -------- ----------------------------------------
* Allan Brighton 05/10/95 Created
* Peter W. Draper 24/01/97 Added FITS_LONG macro changes
* P.Biereichel 22/03/99 Added definitions for bias subtraction
*/
#include <sys/types.h>
#include "ImageData.h"
// The type "long" may have up to 64 bits on alpha machines. FITS
// defines the long we want to use as 32 bits, so use a macro to
// replace the long data type with plain int when appropriate.
#if SIZEOF_LONG == 8
#define FITS_LONG int
#else
#define FITS_LONG long
#endif
// This class is used for images where the raw data is made up of ints
class LongImageData : public ImageData
{
private:
// value of blank pixel, if known (if haveBlankPixel_ is nonzero)
FITS_LONG blank_;
int bias_; // offset for long to short conversion
double dbias_; // used when scale != 1.0
double scale_; // factor for long to short conversion
int scaled_; // flag, true if scale_ != 1.0
// local methods used to get short index in lookup table
short convertToShort(FITS_LONG); // convert long to short by adding bias
short scaleToShort(FITS_LONG); // as above, but with scaling
inline ushort convertToUshort(FITS_LONG l) { // unsigned
return ushort(scaled_ ? scaleToShort(l) : convertToShort(l));
}
// return X image pixel value for raw image value
inline byte lookup(FITS_LONG l) {
return lookup_[convertToUshort(l)];
}
inline unsigned long llookup(FITS_LONG l) {
return lookup_[convertToUshort(l)];
}
// return NTOH converted value evtl. subtracted with corresponding bias value
FITS_LONG getVal(FITS_LONG* p, int idx);
int getXsamples(FITS_LONG *rawImage, int idx, int wbox, FITS_LONG *samples);
int getBsamples(FITS_LONG *rawImage, int idx, int wbox, FITS_LONG *samples);
int getCsamples(FITS_LONG *rawImage, int idx, int wbox, FITS_LONG *samples);
FITS_LONG getMedian(FITS_LONG *samples, int n);
FITS_LONG getBoxVal(FITS_LONG *rawImage, int idx, int wbox, FITS_LONG *samples, int xs);
FITS_LONG getRMS(FITS_LONG *samples, int n);
protected:
// initialize conversion from base type to short,
void initShortConversion();
public:
// constructor
LongImageData(const char* name, const ImageIO& imio, int verbose)
: ImageData(name, imio, verbose),
blank_(0) {}
// return class name as a string
virtual const char* classname() { return "LongImageData"; }
// return the data type of the raw data
int dataType() {return LONG_IMAGE;}
// return true if the data type is signed
int isSigned() {return 1;}
// return a copy of this object
ImageData* copy() {return new LongImageData(*this);}
// include declarations for methods that differ only in raw data type
# include "ImageTemplates.h"
};
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