aboutsummaryrefslogtreecommitdiff
path: root/sys/imio/imbln2.x
blob: 034a1a45d310c3ad4f80987ca97308e87e8197fd (plain) (blame)
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
# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.

include	<imhdr.h>
include	<imio.h>

# IMBLN2 -- Get the length of the axes of a two dimensional subraster.
# Must be called immediately after the get or put call that created the
# buffer.

procedure imbln2 (imdes, nx, ny)

pointer	imdes
int	nx, ny
int	i, v[2]
pointer	bdes

begin
	# Get pointer to most recently used buffer descriptor.
	bdes = IM_LASTBDES(imdes)

	do i = 1, 2
	    v[i] = abs (BD_VE(bdes,i) - BD_VS(bdes,i)) + 1

	nx = v[1]
	ny = v[2]
end