From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 8 Jul 2015 20:46:52 -0400
Subject: Initial commit

---
 pkg/obsolete/fixline.gx | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 pkg/obsolete/fixline.gx

(limited to 'pkg/obsolete/fixline.gx')

diff --git a/pkg/obsolete/fixline.gx b/pkg/obsolete/fixline.gx
new file mode 100644
index 00000000..8a6c3672
--- /dev/null
+++ b/pkg/obsolete/fixline.gx
@@ -0,0 +1,50 @@
+include	<imhdr.h>
+include	<imset.h>
+
+$for (silrdx)
+
+# FIXLINE -- Linearly interpolate lines across a region.
+
+procedure fixline$t (image, x1, x2, y1, y2)
+
+pointer	image				# Image pointer
+int	x1, x2, y1, y2			# Region to be fixed
+
+int	i, nx, ny
+$if (datatype == x)
+complex	f1, f2
+$else $if (datatype == d)
+double	f1, f2
+$else
+real	f1, f2
+$endif $endif
+pointer	a, b, c
+
+pointer	imgs2$t(), imps2$t()
+
+begin
+	c = imps2$t (image, x1, x2, y1, y2)
+
+	nx = x2 - x1 + 1
+	ny = y2 - y1 + 1
+	if (y1 == 1) {
+	    a = imgs2$t (image, x1, x2, y2 + 1, y2 + 1)
+	    do i = 1, ny
+		call amov$t (Mem$t[a], Mem$t[c + (i - 1) * nx], nx)
+	} else if (y2 == IM_LEN (image, 2)) {
+	    a = imgs2$t (image, x1, x2,  y1 - 1, y1 - 1)
+	    do i = 1, ny
+		call amov$t (Mem$t[a], Mem$t[c + (i - 1) * nx], nx)
+	} else {
+	    call imseti (image, IM_NBUFS, 2)
+	    a = imgs2$t (image, x1, x2, y1 - 1, y1 - 1)
+	    b = imgs2$t (image, x1, x2, y2 + 1, y2 + 1)
+	    do i = 1, ny {
+		f2 = i / (ny + 1.)
+		f1 = 1 - f2
+		call awsu$t (Mem$t[a], Mem$t[b], Mem$t[c+(i-1)*nx], nx, f1, f2)
+	    }
+	}
+end
+
+$endfor
-- 
cgit