# copied stf.h to gflib/gf.h directory on APRIL 21 1993 N.Z.
# Renamed gflib to gilib, along with all external names (BPS Sept 1 1998)
# Added fxf.h (BPS 24 Nov 1999)
# Source from IRAF V2.11 
# updated by PEH 2007 July 16

# STF.H -- IKI/STF internal definitions.

define	HDR_TEMPLATE	"dev$pix.hhh"	# used by fmkcopy to create new header
define	MAX_LENEXTN	3		# max length imagefile extension
define	STF_HDRPATTERN	"^??h"		# class of legal header extensions
define	STF_DEFHDREXTN	"hhh"		# default header file extension
define	STF_DEFPIXEXTN	"hhd"		# default pixel file extension
define	ENV_DEFIMTYPE	"imtype"	# name of environment variable
define	STF_MAXDIM	7		# max NAXIS
define	MAX_CACHE	5		# max cached header files
define	DEF_CACHE	3		# default size of header file cache
define	ENV_STFCACHE	"stfcache"	# environment variable for cache size
define	MAX_PCOUNT	99		# max param descriptors
define	SZ_DATATYPE	16		# e.g., `REAL*4'
define	SZ_KEYWORD	8		# size of a FITS keyword
define	SZ_PTYPE	8		# e.g., `CRPIX1'
define	SZ_PDTYPE	16		# e.g., `CHAR*8'
define	SZ_COMMENT	FITS_SZCOMMENT	# comment string for GPB card
define	SZ_EXTRASPACE	(81*32)		# extra space for new cards in header

define	FITS_RECLEN	80		# length of a FITS record (card)
define	FITS_STARTVALUE	10		# first column of value field
define	FITS_ENDVALUE	30		# last  column of value field
define	FITS_SZVALSTR	21		# nchars in value string
define	FITS_SZCOMMENT	50		# max chars in comment, incl. /

# STF image descriptor, used internally by the STF interface.  The required
# header parameters are maintained in this descriptor, everything else is
# simply copied into the user area of the IMIO descriptor.

define	LEN_STFDES	(LEN_STFBASE+MAX_PCOUNT*LEN_PDES)
define	STF_CACHE	STF_BITPIX	# cache descriptor starting here
define	STF_CACHELEN	(33+STF_PCOUNT($1)*LEN_PDES)
define	LEN_STFBASE	43

define	STF_ACMODE	Memi[$1]	# image access mode
define	STF_NEWIMAGE	Memi[$1+1]	# creating entire new STF format image?
define	STF_GROUP	Memi[$1+2]	# group to be accessed
define	STF_SZGROUP	Memi[$1+3]	# size of image+hdr in pixfile, chars
define	STF_PFD		Memi[$1+4]	# pixfile file descriptor
define	STF_GRARG	Memi[$1+5]	# group index given in image name
			# (extra space)
define	STF_BITPIX	Memi[$1+10]	# bits per pixel
define	STF_NAXIS	Memi[$1+11]	# number of axes in image
define	STF_GROUPS	Memi[$1+12]	# group format?
define	STF_GCOUNT	Memi[$1+13]	# number of groups in STF image
define	STF_PSIZE	Memi[$1+14]	# size of GPB, bits
define	STF_PCOUNT	Memi[$1+15]	# number of parameters in GPB
define	STF_DATATYPE	Memc[P2C($1+16)]# datatype string
define	STF_LENAXIS	Memi[$1+35+$2-1]# 35:41 = [7] max
define	STF_PDES	(($1)+43+((($2)-1)*LEN_PDES))

# GPB Parameter descriptor.
define	LEN_PDES	81
define	P_OFFSET	Memi[$1]	# struct offset of parameter
define	P_SPPTYPE	Memi[$1+1]	# SPP datatype of parameter
define	P_LEN		Memi[$1+2]	# number of elements
define	P_PSIZE		Memi[$1+3]	# field size, bits
define	P_PTYPEP	(P2C($1+4))	# pointer to parameter name
define	P_PTYPE		Memc[P2C($1+4)]	# parameter name
define	P_PDTYPE	Memc[P2C($1+13)]# datatype string
define	P_COMMENT	Memc[P2C($1+30)]# comment string

# Reserved FITS keywords known to this code.
define	KW_BITPIX	1
define	KW_DATATYPE	2
define	KW_END		3
define	KW_GCOUNT	4
define	KW_GROUPS	5
define	KW_NAXIS	6
define	KW_NAXISN	7
define	KW_PCOUNT	8
define	KW_PDTYPE	9
define	KW_PSIZE	10
define	KW_PSIZEN	11
define	KW_PTYPE	12
define	KW_SIMPLE	13

# FITS.H (actually fxf.h) -- IKI/FITS internal definitions.

define	FITS_ORIGIN	"NOAO-IRAF FITS Image Kernel July 2003"

define	FITS_LENEXTN	4		# max length imagefile extension
define	SZ_DATATYPE	16		# size of datatype string (eg "REAL*4")
define	SZ_EXTTYPE	20		# size of exttype string (eg BINTABLE)
define	SZ_KEYWORD	8		# size of a FITS keyword
define	SZ_EXTRASPACE	(81*32)		# extra space for new cards in header
define	DEF_PHULINES	0		# initial allocation for PHU
define	DEF_EHULINES	0		# initial allocation for EHU
define	DEF_PADLINES	0		# initial value for extra lines in HU
define	DEF_PLMAXLEN	32768		# default max PLIO encoded line length
define	DEF_PLDEPTH	0		# default PLIO mask depth

define	FITS_BLOCK_BYTES 2880		# FITS logical block length (bytes)
define	FITS_BLOCK_CHARS 1440		# FITS logical block length (spp chars)
define	FITS_STARTVALUE 10		# first column of value field
define	FITS_ENDVALUE	30		# last	column of value field
define	FITS_SZVALSTR	21		# nchars in value string
define	LEN_CARD	80		# length of FITS card.
define	LEN_UACARD	81		# size of a Userarea line.
define	LEN_OBJECT	63		# maximum length of a FITS string value
define	LEN_FORMAT	40		# maximum length of a TFORM value
define	NO_KEYW		-1		# indicates no keyword is present.

define	MAX_OFFSETS	100		# max number of offsets per cache entry.
define	MAX_CACHE	60		# max number of cache entries.
define	DEF_CACHE	10		# default number of cache entries.

define	DEF_HDREXTN	"fits"		# default header file extension
define	ENV_FKINIT	"fkinit"	# FITS kernel initialization

define	DEF_ISOCUTOVER	0		# date when ISO format dates kick in
define	ENV_ISOCUTOVER	"isodates"	# environment override for default

define	FITS_BYTE	8	# Bits in a FITS byte
define	FITS_SHORT	16	# Bits in a FITS short
define	FITS_LONG	32	# Bits in a FITS long
define	FITS_REAL	-32	# 32 Bits FITS IEEE float representation
define	FITS_DOUBLE	-64	# 64 Bits FITS IEEE double representation

define	COL_VALUE	11	# Starting column for parameter values
define	NDEC_REAL	7	# Precision of real
define	NDEC_DOUBLE	14	# Precision of double

define	FITS_LEN_CHAR	(((($1) + 1439)/1440)* 1440)

# Extension subtypes.
define	FK_PLIO		1

# Mapping of FITS Keywords to IRAF image header.  All unrecognized keywords
# are stored here.

define	UNKNOWN	 Memc[($1+IMU-1)*SZ_STRUCT+1]


# FITS image descriptor, used internally by the FITS kernel.  The required
# header parameters are maintained in this descriptor, everything else is
# simply copied into the user area of the IMIO descriptor.

define	LEN_FITDES	500
define	LEN_FITBASE	400

define	FIT_ACMODE	Memi[$1]	# image access mode
define	FIT_PFD		Memi[$1+1]	# pixel file descriptor
define	FIT_PIXOFF	Memi[$1+2]	# pixel offset
define	FIT_TOTPIX	Memi[$1+3]	# size of image in pixfile, chars
define	FIT_IO		Memi[$1+4]	# FITS I/O channel
define	FIT_ZCNV	Memi[$1+5]	# set if on-the-fly conversion needed
define	FIT_IOSTAT	Memi[$1+6]	# i/o status for zfio routines
define  FIT_TFORMP      Memi[$1+7]      # TFORM keyword value pointer
define  FIT_TTYPEP      Memi[$1+8]      # TTYPE keyword value pointer
define  FIT_TFIELDS     Memi[$1+9]      # number of fields in binary table
define  FIT_PCOUNT      Memi[$1+10]     # PCOUNT keyword value
			# extra space
define	FIT_BSCALE	Memd[P2D($1+16)]
define	FIT_BZERO	Memd[P2D($1+18)]
define	FIT_BITPIX	Memi[$1+20]	# bits per pixel
define	FIT_NAXIS	Memi[$1+21]	# number of axes in image
define	FIT_LENAXIS	Memi[$1+22+$2-1]# 35:41 = [7] max
define	FIT_ZBYTES	Memi[$1+30]	# Status value for FIT_ZCNV mode
define	FIT_HFD		Memi[$1+31]	# Header file descriptor
define	FIT_PIXTYPE	Memi[$1+32]
define	FIT_CACHEHDR	Memi[$1+33]	# Cached main header unit's address.
define	FIT_CACHEHLEN	Memi[$1+34]	# Lenght of the above.
define	FIT_IM		Memi[$1+35]	# Has the 'im' descriptor value 
define	FIT_GROUP	Memi[$1+36]
define	FIT_NEWIMAGE	Memi[$1+37]	# Newimage flag
define	FIT_HDRPTR	Memi[$1+38]	# Header data Xtension pointer
define	FIT_PIXPTR	Memi[$1+39]	# Pixel data Xtension pointer
define	FIT_NUMOFFS	Memi[$1+40]	# Number of offsets in cache header.
define	FIT_EOFSIZE	Memi[$1+41]	# Size in char of file before append.
define	FIT_XTENSION	Memi[$1+42]	# Yes, if an Xtension has been read.
define	FIT_INHERIT	Memi[$1+43]	# INHERIT header keyword value.
define	FIT_EXTVER	Memi[$1+44]	# EXTVER value (integer only)
define	FIT_EXPAND	Memi[$1+45]	# Expand the header?
define	FIT_MIN		Memr[$1+46]	# Minimum pixel value
define	FIT_MAX		Memr[$1+47]	# Maximum pixel value
define	FIT_MTIME	Meml[$1+48]	# Time of last mod. for FITS unit 
define	FIT_SVNANR	Memr[$1+49]
define	FIT_SVNAND	Memd[P2D($1+50)]
define	FIT_SVMAPRIN	Memi[$1+52]
define	FIT_SVMAPROUT	Memi[$1+53]
define	FIT_SVMAPDIN	Memi[$1+54]
define	FIT_SVMAPDOUT	Memi[$1+55]
define	FIT_EXTEND	Memi[$1+56]	# FITS extend keyword
define	FIT_PLMAXLEN	Memi[$1+57]	# PLIO maximum linelen
			# extra space
define	FIT_EXTTYPE	Memc[P2C($1+70)]  # extension type
define	FIT_FILENAME	Memc[P2C($1+110)] # FILENAME value 
define	FIT_EXTNAME	Memc[P2C($1+150)] # EXTNAME value 
define	FIT_DATATYPE	Memc[P2C($1+190)] # datatype string
define	FIT_TITLE	Memc[P2C($1+230)] # title string
define	FIT_OBJECT	Memc[P2C($1+270)] # object string
define  FIT_EXTSTYPE    Memc[P2C($1+310)] # FITS extension subtype
			# extra space

# The FKS terms carry the fkinit or kernel section arguments.
define	FKS_APPEND	Memi[$1+400]	# YES, NO append an extension
define	FKS_INHERIT	Memi[$1+401]	# YES, NO inherit the main header
define	FKS_OVERWRITE	Memi[$1+402]	# YES, NO overwrite an extension
define	FKS_DUPNAME	Memi[$1+403]	# YES, NO allow duplicated EXTNAME
define	FKS_EXTVER	Memi[$1+404]	# YES, NO allow duplicated EXTNAME
define	FKS_EXPAND	Memi[$1+405]	# YES, NO expand the header
define	FKS_PHULINES	Memi[$1+406]	# Allocated lines in PHU
define	FKS_EHULINES	Memi[$1+407]	# Allocated lines in EHU
define	FKS_PADLINES	Memi[$1+408]	# Additional lines for HU
define	FKS_NEWFILE	Memi[$1+409]	# YES, NO force newfile
define	FKS_CACHESIZE	Memi[$1+410]	# size of header cache
define  FKS_SUBTYPE     Memi[$1+411]	# BINTABLE subtype
define	FKS_EXTNAME	Memc[P2C($1+412)] # EXTNAME value
			# extra space


# Reserved FITS keywords known to this code.

define	FK_KEYWORDS "|bitpix|datatype|end|naxis|naxisn|simple|bscale|bzero\
|origin|iraf-tlm|filename|extend|irafname|irafmax|irafmin|datamax\
|datamin|xtension|object|pcount|extname|extver|nextend|inherit\
|zcmptype|tform|ttype|tfields|date|"

define	KW_BITPIX	1
define	KW_DATATYPE	2
define	KW_END		3
define	KW_NAXIS	4
define	KW_NAXISN	5
define	KW_SIMPLE	6
define	KW_BSCALE	7
define	KW_BZERO	8
define	KW_ORIGIN	9
define	KW_IRAFTLM	10
define	KW_FILENAME	11
define	KW_EXTEND	12
define	KW_IRAFNAME	13
define	KW_IRAFMAX	14
define	KW_IRAFMIN	15
define	KW_DATAMAX	16
define	KW_DATAMIN	17
define	KW_XTENSION	18
define	KW_OBJECT	19
define	KW_PCOUNT	20
define	KW_EXTNAME	21
define	KW_EXTVER	22
define	KW_NEXTEND	23
define	KW_INHERIT	24
define  KW_ZCMPTYPE     25
define  KW_TFORM        26
define  KW_TTYPE        27
define  KW_TFIELDS      28
define  KW_DATE         29
