From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 9 Feb 2020 22:04:14 +0000 (+0200)
Subject: Check for non-null buffer in Bufferable's refresh function
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=d42c443d24a8e428c43f849b218c9e1a1dca4189

Check for non-null buffer in Bufferable's refresh function
---

diff --git a/source/bufferable.h b/source/bufferable.h
index 66a6db18..f47ef4ca 100644
--- a/source/bufferable.h
+++ b/source/bufferable.h
@@ -46,7 +46,7 @@ public:
 	void use_buffer(Buffer *buf, Bufferable *prev = 0);
 
 	/** Uploads new data into the buffer if necessary. */
-	void refresh() const { if(dirty) update_buffer(); }
+	void refresh() const { if(buffer && dirty) update_buffer(); }
 
 	AsyncUpdater *refresh_async() const;