From: Matthias Clasen <mclasen@redhat.com>
Date: Sat, 16 Jul 2022 03:07:59 +0000 (-0400)
Subject: png loader: gray can have alpha
X-Git-Tag: archive/raspbian/4.8.3+ds-2+rpi1~3^2~81^2^2~57^2~4
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=14cb208ec209a944226709dea42788c043eb7982;p=gtk4.git

png loader: gray can have alpha
---

diff --git a/gdk/loaders/gdkpng.c b/gdk/loaders/gdkpng.c
index 20711210d0..c049868caf 100644
--- a/gdk/loaders/gdkpng.c
+++ b/gdk/loaders/gdkpng.c
@@ -184,7 +184,8 @@ gdk_load_png (GBytes  *bytes,
   if (color_type == PNG_COLOR_TYPE_PALETTE)
     png_set_palette_to_rgb (png);
 
-  if (color_type == PNG_COLOR_TYPE_GRAY)
+  if (color_type == PNG_COLOR_TYPE_GRAY ||
+      color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
     png_set_expand_gray_1_2_4_to_8 (png);
 
   if (png_get_valid (png, info, PNG_INFO_tRNS))