From: Florian Forster <octo@leeloo.lan.home.verplant.org>
Date: Sat, 18 Aug 2007 11:06:19 +0000 (+0200)
Subject: panolib.c: Fixed argument-checking in the bilinear interpolation.
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=37da36e515306b3a538731220ee25f665071e892;p=libopano.git

panolib.c: Fixed argument-checking in the bilinear interpolation.
---

diff --git a/src/panolib.c b/src/panolib.c
index 2686059..6d503d6 100644
--- a/src/panolib.c
+++ b/src/panolib.c
@@ -91,16 +91,16 @@ static int copy_pixel (ui_image_t *dest, const ui_image_t *src,
 		int i;
 
 		x_src_left = (int) x_src_fp;
-		x_src_right = x_src_left + 1;
+		x_src_right = (x_src_left + 1) % src->width;
+
 		y_src_top  = (int) y_src_fp;
 		y_src_bottom = y_src_top + 1;
+		if (y_src_bottom >= src->height)
+			y_src_bottom = src->height - 1;
 
 		x_right_frac = x_src_fp - x_src_left;
 		y_bottom_frac = y_src_fp - y_src_top;
 
-		assert (x_src_right < src->width);
-		assert (y_src_bottom < src->height);
-
 		assert ((x_right_frac >= 0.0) && (x_right_frac <= 1.0));
 		assert ((y_bottom_frac >= 0.0) && (y_bottom_frac <= 1.0));