From fa3a72c8f6321b03e9074c7d2fea6a1ac78cb3b5 Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Fri, 31 May 2024 20:17:37 -0400
Subject: [PATCH] Fix oklch conversion

We want to normalize angles to be in [0, 360).
---
 gtk/gtkcolorutils.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gtk/gtkcolorutils.c b/gtk/gtkcolorutils.c
index 4abcddbdc0..acd7c84dcf 100644
--- a/gtk/gtkcolorutils.c
+++ b/gtk/gtkcolorutils.c
@@ -307,7 +307,10 @@ gtk_oklab_to_oklch (float  L,  float  a, float  b,
 {
   *L2 = L;
   *C = sqrtf (a * a + b * b);
-  *H = atan2 (b, a);
+  *H = RAD_TO_DEG (atan2 (b, a));
+  *H = fmod (*H, 360);
+  if (*H < 0)
+    *H += 360;
 }
 
 void