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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <gki.h>
include "gkt.h"
# GKT_OPEN -- Install the nspp kernel as a graphics kernel device driver.
# The device table DD consists of an array of the entry point addresses for
# the driver procedures. If a driver does not implement a particular
# instruction the table entry for that procedure may be set to zero, causing
# the interpreter to ignore the instruction.
procedure gkt_open (devname, dd)
char devname[ARB] # nonnull for forced output to a device
int dd[ARB] # device table to be initialized
pointer sp, devns
int len_devname
int locpr(), strlen()
extern gkt_openws(), gkt_closews(), gkt_clear(), gkt_cancel()
extern gkt_flush(), gkt_polyline(), gkt_polymarker(), gkt_text()
extern gkt_fillarea(), gkt_putcellarray(), gkt_plset()
extern gkt_pmset(), gkt_txset(), gkt_faset()
extern gkt_escape()
include "gkt.com"
begin
call smark (sp)
call salloc (devns, SZ_FNAME, TY_SHORT)
# Flag first pass. Save forced device name in common for OPENWS.
# Zero the frame and instruction counters.
g_kt = NULL
g_nframes = 0
g_ndraw = 0
call strcpy (devname, g_device, SZ_GDEVICE)
# Install the device driver.
dd[GKI_OPENWS] = locpr (gkt_openws)
dd[GKI_CLOSEWS] = locpr (gkt_closews)
dd[GKI_DEACTIVATEWS] = 0
dd[GKI_REACTIVATEWS] = 0
dd[GKI_MFTITLE] = 0
dd[GKI_CLEAR] = locpr (gkt_clear)
dd[GKI_CANCEL] = locpr (gkt_cancel)
dd[GKI_FLUSH] = locpr (gkt_flush)
dd[GKI_POLYLINE] = locpr (gkt_polyline)
dd[GKI_POLYMARKER] = locpr (gkt_polymarker)
dd[GKI_TEXT] = locpr (gkt_text)
dd[GKI_FILLAREA] = locpr (gkt_fillarea)
dd[GKI_PUTCELLARRAY] = locpr (gkt_putcellarray)
dd[GKI_SETCURSOR] = 0
dd[GKI_PLSET] = locpr (gkt_plset)
dd[GKI_PMSET] = locpr (gkt_pmset)
dd[GKI_TXSET] = locpr (gkt_txset)
dd[GKI_FASET] = locpr (gkt_faset)
dd[GKI_GETCURSOR] = 0
dd[GKI_GETCELLARRAY] = 0
dd[GKI_ESCAPE] = locpr (gkt_escape)
dd[GKI_SETWCS] = 0
dd[GKI_GETWCS] = 0
dd[GKI_UNKNOWN] = 0
# If a device was named open the workstation as well. This is
# necessary to permit processing of metacode files which do not
# contain the open workstation instruction.
len_devname = strlen (devname)
if (len_devname > 0) {
call achtcs (devname, Mems[devns], len_devname)
call gkt_openws (Mems[devns], len_devname, NEW_FILE)
}
call sfree (sp)
end
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