From b636cf4a899a90c45b545c866f394653513e96a1 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Fri, 23 Jun 2017 13:02:42 +0200 Subject: Fix nan in conversion from ciexyz to cieluv MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- conversions.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'conversions.h') diff --git a/conversions.h b/conversions.h index 6a3ad68..71e8b54 100644 --- a/conversions.h +++ b/conversions.h @@ -106,11 +106,13 @@ TYPE X__ = (FROM_X), Y__ = (FROM_Y), Z__ = (FROM_Z);\ TYPE L2__, L__, u__, v__, t__;\ t__ = X__ + 15 * Y__ + 3 * Z__;\ - u__ = 4 * X__ / t__;\ - v__ = 9 * Y__ / t__;\ + u__ = X__ / t__;\ + v__ = Y__ / t__;\ + if (WASDIV0(u__) || WASDIV0(v__))\ + u__ = v__ = D(0.);\ t__ = WX__ + 15 * WY__ + 3 * WZ__;\ - u__ -= 4 * WX__ / t__;\ - v__ -= 9 * WY__ / t__;\ + u__ = 4 * (u__ - WX__ / t__);\ + v__ = 9 * (v__ - WY__ / t__);\ L__ = Y__ / WY__;\ L2__ = L__ * 24389;\ L__ = L2__ <= 216 ? L2__ / 27 : xcbrt(L__) * 116 - 16;\ -- cgit v1.2.3-70-g09d2