From 88576962887e1bcbedd3b766e92201b39bc69c7e Mon Sep 17 00:00:00 2001
From: Stuart Longland <me@vk4msl.id.au>
Date: Wed, 18 Apr 2018 22:38:59 +1000
Subject: [PATCH] resizer: Do not convert colourspace on GIF images.

---
 tornado_gallery/resizer.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tornado_gallery/resizer.py b/tornado_gallery/resizer.py
index b4c67c9..efa6308 100644
--- a/tornado_gallery/resizer.py
+++ b/tornado_gallery/resizer.py
@@ -216,8 +216,9 @@ class ResizerPool(object):
         # Resize!
         img = img.resize((width, height), Image.LANCZOS)
 
-        # Convert to RGB colourspace
-        img = img.convert('RGB')
+        # Convert to RGB colourspace if not GIF
+        if img_format != ImageFormat.GIF:
+            img = img.convert('RGB')
 
         # Write out the new file.
         cache_path = self._cache_node.join(cache_dir, cache_name)