From 925088a8f21c2b2b136d30ca2d4bc45fd816ce35 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Fri, 28 Feb 2020 18:35:21 +0100
Subject: [PATCH] render: color_hex_to_pixman_with_alpha(): handle alpha == 0
 (transparent)

---
 render.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/render.c b/render.c
index 98ea90f6..634e07dc 100644
--- a/render.c
+++ b/render.c
@@ -218,6 +218,9 @@ color_hex_to_rgb(uint32_t color)
 static inline pixman_color_t
 color_hex_to_pixman_with_alpha(uint32_t color, uint16_t alpha)
 {
+    if (alpha == 0)
+        return (pixman_color_t){0, 0, 0, 0};
+
     int alpha_div = 0xffff / alpha;
     return (pixman_color_t){
         .red =   ((color >> 16 & 0xff) | (color >> 8 & 0xff00)) / alpha_div,