colors

commit 51562c331a25a3c3548fb5d4d84cd9fd31aeafb2
parent b945d8df203f585a48e1e83d51c98be53ea9f99d
Author: lostd <lostd@2f30.org>
Date:   Thu, 11 Jun 2015 20:39:33 +0100

Fix comparison function

Two points having the same distance from the center of the cluster does
not mean they are unique.

Diffstat:
M
colors.c
 | 
6
++++--

1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/colors.c b/colors.c
@@ -56,9 +56,11 @@ distance(struct point *p1, struct point *p2)
 int
 pointcmp(struct point *p1, struct point *p2)
 {
-	struct point center = { 0 };
+	unsigned int a, b;
 
-	return distance(&center, p1) - distance(&center, p2);
+	a = p1->x << 16 | p1->y << 8 | p1->z;
+	b = p2->x << 16 | p2->y << 8 | p2->z;
+	return a - b;
 }
 RB_PROTOTYPE(pointtree, point, rb_e, pointcmp)
 RB_GENERATE(pointtree, point, rb_e, pointcmp)