X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbufferable.h;h=f47ef4cabf17c1664838195778910886fcda778b;hb=9f00daecc2517aa8fd5a6e4545b2db3f2fff985d;hp=a88f7b07a719535d426e262157fc8ef10879bd80;hpb=9f25c3632cfd5c669a2ad24255e2e85dfa1cb460;p=libs%2Fgl.git

diff --git a/source/bufferable.h b/source/bufferable.h
index a88f7b07..f47ef4ca 100644
--- a/source/bufferable.h
+++ b/source/bufferable.h
@@ -46,16 +46,20 @@ 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;
 
 private:
 	void unlink_from_buffer();
 
+public:
+	/** Returns the buffer in which the data is stored. */
+	const Buffer *get_buffer() const { return buffer; }
+
 protected:
 	/** Returns the buffer in which the data is stored. */
-	Buffer *get_buffer() const { return buffer; }
+	Buffer *get_mutable_buffer() const { return buffer; }
 
 	/** Returns the amount of data to be stored in the buffer, in bytes. */
 	virtual unsigned get_data_size() const = 0;