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# GIOTR.H -- Global definitions for the GIOTR graphics i/o workstation
# transformation and i/o program unit. Note: requires <gio.h>.
define DEF_MAXLENFRAMEBUF 128000
define DEF_LENFRAMEBUF 8192
define INC_LENFRAMEBUF 4096
define DEF_LENSCRATCHBUF 256
define INC_LENSCRATCHBUF 256
define MAX_PSEUDOFILES 10
define SZ_TRDEVNAME 229
define SZ_KERNFNAME 259
define LEN_GTRCOM 28 # see "gtr.com"
define KSHIFT 10000 # encode pr ("etc$prpsio.x") such that
#
# ((pr*KSHIFT)+stream) > LAST_FD
#
# see also <gio.h>
define LEN_TRSTRUCT (564+204)
define TR_PID Memi[$1] # process id of kernel
define TR_IN Memi[$1+1] # input from process
define TR_OUT Memi[$1+2] # output to process
define TR_TTY Memi[$1+3] # graphcap descriptor
define TR_SPOOLDATA Memi[$1+4] # spool metacode instructions
define TR_FRAMEBUF Memi[$1+5] # pointer to frame buffer
define TR_LENFRAMEBUF Memi[$1+6] # length of the frame buffer
define TR_MAXLENFRAMEBUF Memi[$1+7] # max length of the frame buffer
define TR_IP Memi[$1+8] # input pointer into frame buf
define TR_OP Memi[$1+9] # output pointer into frame buf
define TR_LASTOP Memi[$1+10] # last OP (for undo)
define TR_SCRATCHBUF Memi[$1+11] # for annotating plots
define TR_LENSCRATCHBUF Memi[$1+12] # length of the scratch buffer
define TR_OPSB Memi[$1+13] # output pointer, scratch buf
define TR_NOPEN Memi[$1+14] # number of opens
define TR_REDIR Memi[$1+15] # redirection information
define TR_WCS Memi[$1+16] # WCS selected, 0 if none
define TR_PAGE Memi[$1+17] # clear screen for text
define TR_WAITPAGE Memi[$1+18] # grc_waitpage flag
define TR_WSOPEN Memi[$1+19] # workstation open count
define TR_SKIPOPEN Memi[$1+20] # skip wsopen in metacode
define TR_WSACTIVE Memi[$1+21] # workstation activated?
define TR_WSACTSAVE Memi[$1+22] # save old wsactive state
define TR_INTERACTIVE Memi[$1+23] # the user graphics terminal?
# (open)
define TR_TXAP ($1+30) # text drawing attributes
define TR_PLAP ($1+40) # text drawing attributes
define TR_DEVNAME Memc[P2C($1+44)] # device name
define TR_KERNFNAME Memc[P2C($1+274)] # name of kernel file (or "cl")
define TR_GTRCOM Memi[$1+534] # storage for the gtr common
define TR_WCSPTR (($1)+564+($2)*LEN_WCS) # WCS storage (0=not used)
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