diff options
Diffstat (limited to 'sys/mwcs/mwsv.h')
| -rw-r--r-- | sys/mwcs/mwsv.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sys/mwcs/mwsv.h b/sys/mwcs/mwsv.h new file mode 100644 index 00000000..e08a6069 --- /dev/null +++ b/sys/mwcs/mwsv.h @@ -0,0 +1,41 @@ +# 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 |