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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
# MWSV.H -- Definitions for the MWSV external save-MWSV data format. This
# has been generalized slightly over the original "version 0" design, but is
# still not very general and should be redone at some point. There is an
# implicit assumption that most of the elements of the MWSV structure are
# identical to those in the MWCS runtime descriptor.
define MWSV_MAGIC 4D57X # identifies MWSV descriptor
define MWSV_VERSION 1 # current MWSV version
define MWSV_MAXWCS 8 # max wcs per mwcs
define MWSV_LENWCS0 282 # LENWCS for MWSV version 0
# Header for the saved MWCS object. Object LENs are in the natural units of
# whatever object the field refers to. Save buffer offsets are type char
# regardless of the object type. The unused fields at the end of the header
# are reserved for future use and are set to zero in the current version.
define LEN_SVHDR 16
define SV_MAGIC Memi[$1] # magic marker
define SV_CWCSLEN Memi[$1+1] # length of compressed MWSV
define SV_MWSVLEN Memi[$1+2] # full length of MWSV descr.
define SV_MWSVOFF Memi[$1+3] # char offset of saved MWSV
define SV_DBUFLEN Memi[$1+4] # length of saved DBUF
define SV_DBUFOFF Memi[$1+5] # char offset of saved DBUF
define SV_SBUFLEN Memi[$1+6] # length of saved SBUF
define SV_SBUFOFF Memi[$1+7] # char offset of saved SBUF
define SV_VERSION Memi[$1+8] # MWSV save file version number
define SV_NWCS Memi[$1+9] # number of saved WCS structs
define SV_LENWCS Memi[$1+10] # length of WCS substruct
# MWSV descriptor. This is very similar to the MWCS runtime descriptor
# except that the size of a WCS sub-structure (LENWCS) can vary. If the
# MWSV version is 0 lenwcs is fixed at MS_LENWCS0, otherwise the value of
# lenwcs is given in the save header as the value of field SV_LENWCS.
define MWSV_BASELEN 70
define LEN_MWSV (MWSV_BASELEN+($1)*($2))
define MS_MAGIC Memi[$1] # magic marker
define MS_WCSP ($1+70+(($2)-1)*($3)) # $1=ms $2=wcs $3=lenwcs
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