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1 files changed, 212 insertions, 0 deletions

diff --git a/pkg/images/imutil/src/generic/imamax.x b/pkg/images/imutil/src/generic/imamax.x
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+++ b/pkg/images/imutil/src/generic/imamax.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<imhdr.h>
+
+# IMA_MAX -- Image arithmetic maximum value.
+
+
+procedure ima_maxs (im_a, im_b, im_c, a, b)
+
+pointer	im_a, im_b, im_c
+short	a, b
+
+int	len
+pointer	im[3], buf[3]
+long	v[IM_MAXDIM, 3]
+
+int	ima_nls()
+
+begin
+	# Loop through all of the image lines.
+	im[1] = im_c
+	len = IM_LEN (im[1], 1)
+	call amovkl (long(1), v, 3 * IM_MAXDIM)
+
+	# If imagea is constant then read imageb and do the vector/scalar
+	# maximum to imagec.
+	if (im_a == NULL) {
+	    im[2] = im_b
+	    while (ima_nls (im, buf, v, 2) != EOF)
+		call amaxks (Mems[buf[2]], a, Mems[buf[1]], len)
+
+	# If imageb is constant then read imagea and do the vector/scalar
+	# maximum to imagec.
+	} else if (im_b == NULL) {
+	    im[2] = im_a
+	    while (ima_nls (im, buf, v, 2) != EOF)
+		call amaxks (Mems[buf[2]], b, Mems[buf[1]], len)
+
+	# Read imagea and imageb and do a vector-vector maximum
+	# operation to imagec.
+	} else {
+	    im[2] = im_a
+	    im[3] = im_b
+	    while (ima_nls (im, buf, v, 3) != EOF)
+		call amaxs (Mems[buf[2]], Mems[buf[3]], Mems[buf[1]], len)
+	}
+end
+
+procedure ima_maxi (im_a, im_b, im_c, a, b)
+
+pointer	im_a, im_b, im_c
+int	a, b
+
+int	len
+pointer	im[3], buf[3]
+long	v[IM_MAXDIM, 3]
+
+int	ima_nli()
+
+begin
+	# Loop through all of the image lines.
+	im[1] = im_c
+	len = IM_LEN (im[1], 1)
+	call amovkl (long(1), v, 3 * IM_MAXDIM)
+
+	# If imagea is constant then read imageb and do the vector/scalar
+	# maximum to imagec.
+	if (im_a == NULL) {
+	    im[2] = im_b
+	    while (ima_nli (im, buf, v, 2) != EOF)
+		call amaxki (Memi[buf[2]], a, Memi[buf[1]], len)
+
+	# If imageb is constant then read imagea and do the vector/scalar
+	# maximum to imagec.
+	} else if (im_b == NULL) {
+	    im[2] = im_a
+	    while (ima_nli (im, buf, v, 2) != EOF)
+		call amaxki (Memi[buf[2]], b, Memi[buf[1]], len)
+
+	# Read imagea and imageb and do a vector-vector maximum
+	# operation to imagec.
+	} else {
+	    im[2] = im_a
+	    im[3] = im_b
+	    while (ima_nli (im, buf, v, 3) != EOF)
+		call amaxi (Memi[buf[2]], Memi[buf[3]], Memi[buf[1]], len)
+	}
+end
+
+procedure ima_maxl (im_a, im_b, im_c, a, b)
+
+pointer	im_a, im_b, im_c
+long	a, b
+
+int	len
+pointer	im[3], buf[3]
+long	v[IM_MAXDIM, 3]
+
+int	ima_nll()
+
+begin
+	# Loop through all of the image lines.
+	im[1] = im_c
+	len = IM_LEN (im[1], 1)
+	call amovkl (long(1), v, 3 * IM_MAXDIM)
+
+	# If imagea is constant then read imageb and do the vector/scalar
+	# maximum to imagec.
+	if (im_a == NULL) {
+	    im[2] = im_b
+	    while (ima_nll (im, buf, v, 2) != EOF)
+		call amaxkl (Meml[buf[2]], a, Meml[buf[1]], len)
+
+	# If imageb is constant then read imagea and do the vector/scalar
+	# maximum to imagec.
+	} else if (im_b == NULL) {
+	    im[2] = im_a
+	    while (ima_nll (im, buf, v, 2) != EOF)
+		call amaxkl (Meml[buf[2]], b, Meml[buf[1]], len)
+
+	# Read imagea and imageb and do a vector-vector maximum
+	# operation to imagec.
+	} else {
+	    im[2] = im_a
+	    im[3] = im_b
+	    while (ima_nll (im, buf, v, 3) != EOF)
+		call amaxl (Meml[buf[2]], Meml[buf[3]], Meml[buf[1]], len)
+	}
+end
+
+procedure ima_maxr (im_a, im_b, im_c, a, b)
+
+pointer	im_a, im_b, im_c
+real	a, b
+
+int	len
+pointer	im[3], buf[3]
+long	v[IM_MAXDIM, 3]
+
+int	ima_nlr()
+
+begin
+	# Loop through all of the image lines.
+	im[1] = im_c
+	len = IM_LEN (im[1], 1)
+	call amovkl (long(1), v, 3 * IM_MAXDIM)
+
+	# If imagea is constant then read imageb and do the vector/scalar
+	# maximum to imagec.
+	if (im_a == NULL) {
+	    im[2] = im_b
+	    while (ima_nlr (im, buf, v, 2) != EOF)
+		call amaxkr (Memr[buf[2]], a, Memr[buf[1]], len)
+
+	# If imageb is constant then read imagea and do the vector/scalar
+	# maximum to imagec.
+	} else if (im_b == NULL) {
+	    im[2] = im_a
+	    while (ima_nlr (im, buf, v, 2) != EOF)
+		call amaxkr (Memr[buf[2]], b, Memr[buf[1]], len)
+
+	# Read imagea and imageb and do a vector-vector maximum
+	# operation to imagec.
+	} else {
+	    im[2] = im_a
+	    im[3] = im_b
+	    while (ima_nlr (im, buf, v, 3) != EOF)
+		call amaxr (Memr[buf[2]], Memr[buf[3]], Memr[buf[1]], len)
+	}
+end
+
+procedure ima_maxd (im_a, im_b, im_c, a, b)
+
+pointer	im_a, im_b, im_c
+double	a, b
+
+int	len
+pointer	im[3], buf[3]
+long	v[IM_MAXDIM, 3]
+
+int	ima_nld()
+
+begin
+	# Loop through all of the image lines.
+	im[1] = im_c
+	len = IM_LEN (im[1], 1)
+	call amovkl (long(1), v, 3 * IM_MAXDIM)
+
+	# If imagea is constant then read imageb and do the vector/scalar
+	# maximum to imagec.
+	if (im_a == NULL) {
+	    im[2] = im_b
+	    while (ima_nld (im, buf, v, 2) != EOF)
+		call amaxkd (Memd[buf[2]], a, Memd[buf[1]], len)
+
+	# If imageb is constant then read imagea and do the vector/scalar
+	# maximum to imagec.
+	} else if (im_b == NULL) {
+	    im[2] = im_a
+	    while (ima_nld (im, buf, v, 2) != EOF)
+		call amaxkd (Memd[buf[2]], b, Memd[buf[1]], len)
+
+	# Read imagea and imageb and do a vector-vector maximum
+	# operation to imagec.
+	} else {
+	    im[2] = im_a
+	    im[3] = im_b
+	    while (ima_nld (im, buf, v, 3) != EOF)
+		call amaxd (Memd[buf[2]], Memd[buf[3]], Memd[buf[1]], len)
+	}
+end
+