From 896c85bfd5a607cfb91e5fd24c858d2ddadc0216 Mon Sep 17 00:00:00 2001
From: Douglas Bagnall <douglas@paradise.net.nz>
Date: Sat, 12 Jun 2010 18:37:09 +1200
Subject: [PATCH] either clamp_intxy was out by 1, or all its callers were

---
 edges.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/edges.c b/edges.c
index cc0d975..f11bf2f 100644
--- a/edges.c
+++ b/edges.c
@@ -119,12 +119,13 @@ corners_to_full_lut(GstSparrow *sparrow, sparrow_find_lines_t *fl){
 #define FLOATXY(x)(((double)(x)) / (1 << SPARROW_FIXED_POINT))
 
 static inline int
-clamp_intxy(int x, const int max){
+clamp_intxy(int x, const int max_plus_one){
   if (x < 0)
     return 0;
-  if (x >= max << SPARROW_FIXED_POINT)
-    return max;
-  return x / (1 << SPARROW_FIXED_POINT);
+  x >>= SPARROW_FIXED_POINT;
+  if (x >= max_plus_one)
+    return max_plus_one - 1;
+  return x;
 }
 
 static void
-- 
2.11.4.GIT