1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <config.h>
include <gki.h>
# GKI_OPENWS -- Open workstation.
#
# BOI GKI_OPENWS L M N D
#
# L(i) 5 + N
# M(i) access mode (APPEND=4, NEW_FILE=5, TEE=6)
# N(i) number of characters in field D
# D(Nc) device name as in graphcap file
procedure gki_openws (fd, device, mode)
int fd # output file
char device[ARB] # device name
int mode # access mode
int ip, n, epa, nchars
pointer sp, gki, op
int strlen()
include "gki.com"
begin
call smark (sp)
n = strlen (device)
call salloc (gki, GKI_OPENWS_LEN + n, TY_SHORT)
# Pack the device name as a SHORT integer array.
op = gki + GKI_OPENWS_D - 1
for (ip=1; ip <= n; ip=ip+1) {
Mems[op] = device[ip]
op = op + 1
}
if (IS_INLINE(fd)) {
epa = gk_dd[GKI_OPENWS]
if (epa != 0)
call zcall3 (epa, Mems[gki+GKI_OPENWS_D-1], n, mode)
} else {
Mems[gki ] = BOI
Mems[gki+1] = GKI_OPENWS
Mems[gki+2] = GKI_OPENWS_LEN + n
Mems[gki+GKI_OPENWS_M-1] = mode
Mems[gki+GKI_OPENWS_N-1] = n
# Send a copy of the open workstation directive to PSIOCTRL in
# the CL process to connect the graphics stream to a kernel,
# before writing to the graphics stream. The GKI instruction
# must be preceded by the integer value of the stream number.
nchars = (GKI_OPENWS_LEN + n) * SZ_SHORT
if (IS_FILE(fd) && (fd >= STDGRAPH && fd <= STDPLOT)) {
call write (PSIOCTRL, fd, SZ_INT32)
call write (PSIOCTRL, Mems[gki], nchars)
call flush (PSIOCTRL)
}
# Now send a copy to the graphics kernel.
call write (gk_fd[fd], Mems[gki], nchars)
}
call sfree (sp)
end
|
