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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <error.h>
include <gset.h>
include <gki.h>
define SZ_TXQUALITY 1
# STDGRAPH -- Graphics kernel for the standard graphics output (interactive
# graphics terminal).
procedure t_stdgraph()
int fd, list
char txquality[SZ_TXQUALITY]
pointer gki, sp, fname, devname
int dev[LEN_GKIDD], deb[LEN_GKIDD]
int debug, verbose, gkiunits, xres, yres, quality
bool clgetb()
int clpopni(), clgfil(), open(), btoi(), clgeti()
int gki_fetch_next_instruction()
begin
call smark (sp)
call salloc (fname, SZ_FNAME, TY_CHAR)
call salloc (devname, SZ_FNAME, TY_CHAR)
# Open list of metafiles to be decoded.
list = clpopni ("input")
# Get parameters.
call clgstr ("device", Memc[devname], SZ_FNAME)
if (clgetb ("generic")) {
debug = NO
verbose = NO
gkiunits = NO
quality = 0
xres = 0
yres = 0
} else {
debug = btoi (clgetb ("debug"))
if (debug == YES) {
verbose = btoi (clgetb ("verbose"))
gkiunits = btoi (clgetb ("gkiunits"))
}
# Get the quality parameter for the text generator.
call clgstr ("txquality", txquality, SZ_TXQUALITY)
switch (txquality[1]) {
case 'l':
quality = GT_LOW
case 'm':
quality = GT_MEDIUM
case 'h':
quality = GT_HIGH
default:
quality = 0
}
xres = clgeti ("xres")
yres = clgeti ("yres")
}
# Open the graphics kernel.
call stg_open (Memc[devname], dev, STDIN, STDOUT, xres, yres, quality)
call gkp_install (deb, STDERR, verbose, gkiunits)
# Process a list of metacode files, writing the decoded metacode
# instructions on the standard output.
while (clgfil (list, Memc[fname], SZ_FNAME) != EOF) {
# Open input file.
iferr (fd = open (Memc[fname], READ_ONLY, BINARY_FILE)) {
call erract (EA_WARN)
next
} else
call stg_grstream (fd)
# Process the metacode instruction stream.
while (gki_fetch_next_instruction (fd, gki) != EOF)
switch (Mems[gki+GKI_HDR_OPCODE-1]) {
case GKI_CLOSEWS, GKI_DEACTIVATEWS, GKI_REACTIVATEWS:
# These instructions are passed directly to the kernel via
# the PSIOCTRL stream at runtime, but are ignored in
# metacode to avoid unnecessary mode switching of the
# terminal.
;
default:
if (debug == YES)
call gki_execute (Mems[gki], deb)
call gki_execute (Mems[gki], dev)
}
call close (fd)
}
# Make sure we finish with CLOSEWS so that the terminal is left in
# text mode.
call stg_closews (NULL, NULL)
# Finish up.
call gkp_close()
call stg_close()
call clpcls (list)
call sfree (sp)
end
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