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include <pmset.h>
include "ace.h"
# BNDRY -- Flag boundary pixels of unsplit objects.
# Assume the boundary flag is not set.
procedure bndry (om, logfd)
pointer om #I Object mask
int logfd #I Logfile
int i, c, c1, c2, l, nc, nl, num, bndryval, val, vallast
pointer sp, v, irl, irlptr, orl, orlptr, bufs, buf1, buf2, buf3
int andi(), ori()
begin
call smark (sp)
call salloc (v, PM_MAXDIM, TY_LONG)
if (logfd != NULL)
call fprintf (logfd, " Set boundary mask:\n")
call pm_gsize (om, nc, Meml[v], nl)
nc = Meml[v]; nl = Meml[v+1]
Meml[v] = 1
# Allocate buffers.
call salloc (irl, 3+3*nc, TY_INT)
call salloc (orl, 3+3*nc, TY_INT)
call salloc (bufs, 3, TY_POINTER)
call salloc (Memi[bufs], nc, TY_INT)
call salloc (Memi[bufs+1], nc, TY_INT)
call salloc (Memi[bufs+2], nc, TY_INT)
Memi[orl+1] = nc
# First line.
l = 1
buf2 = Memi[bufs+mod(l,3)]
buf3 = Memi[bufs+mod(2,3)]
Meml[v+1] = l + 1
call pmglpi (om, Meml[v], Memi[buf3], 0, nc, 0)
Meml[v+1] = l
call pmglpi (om, Meml[v], Memi[buf2], 0, nc, 0)
call pmglri (om, Meml[v], Memi[irl], 0, nc, 0)
irlptr = irl
orlptr = orl
do i = 2, Memi[irl] {
irlptr = irlptr + 3
num = Memi[irlptr+2]
if (num < NUMSTART || MSPLIT(num)) {
orlptr = orlptr + 3
Memi[orlptr] = Memi[irlptr]
Memi[orlptr+1] = Memi[irlptr+1]
Memi[orlptr+2] = num
next
}
bndryval = MSETFLAG (num, MASK_BNDRY)
c1 = Memi[irlptr] - 1
c2 = c1 + Memi[irlptr+1] - 1
do c = c1, c2
Memi[buf2+c] = bndryval
orlptr = orlptr + 3
Memi[orlptr] = Memi[irlptr]
Memi[orlptr+1] = Memi[irlptr+1]
Memi[orlptr+2] = bndryval
}
Memi[orl] = 1 + (orlptr - orl) / 3
call pmplri (om, Meml[v], Memi[orl], 0, nc, PIX_SRC)
# Interior lines.
do l = 2, nl-1 {
buf1 = Memi[bufs+mod(l-1,3)]
buf2 = Memi[bufs+mod(l,3)]
buf3 = Memi[bufs+mod(l+1,3)]
Meml[v+1] = l + 1
call pmglpi (om, Meml[v], Memi[buf3], 0, nc, 0)
Meml[v+1] = l
call pmglri (om, Meml[v], Memi[irl], 0, nc, 0)
irlptr = irl
orlptr = orl
do i = 2, Memi[irl] {
irlptr = irlptr + 3
num = Memi[irlptr+2]
if (num < NUMSTART || MSPLIT(num)) {
orlptr = orlptr + 3
Memi[orlptr] = Memi[irlptr]
Memi[orlptr+1] = Memi[irlptr+1]
Memi[orlptr+2] = num
next
}
c1 = Memi[irlptr] - 1
c2 = c1 + Memi[irlptr+1] - 1
bndryval = MSETFLAG (num, MASK_BNDRY)
Memi[buf2+c1] = bndryval
orlptr = orlptr + 3
Memi[orlptr] = c1 + 1
Memi[orlptr+2] = bndryval
vallast = bndryval
do c = c1+1, c2-1 {
val = num
if (Memi[buf3+c-1] != num)
val = bndryval
else if (Memi[buf3+c] != num)
val = bndryval
else if (Memi[buf3+c+1] != num)
val = bndryval
else if (Memi[buf1+c-1] != num && Memi[buf1+c-1]!=bndryval)
val = bndryval
else if (Memi[buf1+c] != num && Memi[buf1+c] != bndryval)
val = bndryval
else if (Memi[buf1+c+1] != num && Memi[buf1+c+1]!=bndryval)
val = bndryval
if (val == bndryval)
Memi[buf2+c] = val
if (val != vallast) {
Memi[orlptr+1] = c - Memi[orlptr] + 1
orlptr = orlptr + 3
Memi[orlptr] = c + 1
Memi[orlptr+2] = val
vallast = val
}
}
Memi[buf2+c2] = bndryval
if (vallast != bndryval) {
Memi[orlptr+1] = c2 - Memi[orlptr] + 1
orlptr = orlptr + 3
Memi[orlptr] = c2 + 1
Memi[orlptr+1] = 1
Memi[orlptr+2] = bndryval
} else
Memi[orlptr+1] = c2 - Memi[orlptr] + 2
}
Memi[orl] = 1 + (orlptr - orl) / 3
call pmplri (om, Meml[v], Memi[orl], 0, nc, PIX_SRC)
}
# Last line.
l = nl
buf2 = Memi[bufs+mod(l,3)]
Meml[v+1] = l
call pmglri (om, Meml[v], Memi[irl], 0, nc, 0)
irlptr = irl
orlptr = orl
do i = 2, Memi[irl] {
irlptr = irlptr + 3
num = Memi[irlptr+2]
if (num < NUMSTART || MSPLIT(num)) {
orlptr = orlptr + 3
Memi[orlptr] = Memi[irlptr]
Memi[orlptr+1] = Memi[irlptr+1]
Memi[orlptr+2] = num
next
}
bndryval = MSETFLAG (num, MASK_BNDRY)
c1 = Memi[irlptr] - 1
c2 = c1 + Memi[irlptr+1] - 1
do c = c1, c2
Memi[buf2+c] = bndryval
orlptr = orlptr + 3
Memi[orlptr] = Memi[irlptr]
Memi[orlptr+1] = Memi[irlptr+1]
Memi[orlptr+2] = bndryval
}
Memi[orl] = 1 + (orlptr - orl) / 3
call pmplri (om, Meml[v], Memi[orl], 0, nc, PIX_SRC)
call sfree (sp)
end
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