Merge branch 'master' of ssh://git.carlh.net/home/carl/git/dcpomatic

[dcpomatic.git] / src / lib / image_proxy.h

diff --git a/src/lib/image_proxy.h b/src/lib/image_proxy.h
index d7bd7b0e62811f9846ceb92a127a77be09d9b1f5..01cb79552d26de566d6ea3ad667c8a819c5618f8 100644 (file)
--- a/src/lib/image_proxy.h
+++ b/src/lib/image_proxy.h
@@ -74,7 +74,12 @@ public:
        virtual void send_binary (boost::shared_ptr<Socket>) const = 0;
        /** @return true if our image is definitely the same as another, false if it is probably not */
        virtual bool same (boost::shared_ptr<const ImageProxy>) const = 0;
+       /** Do any useful work that would speed up a subsequent call to ::image().
+        *  This method may be called in a different thread to image().
+        */
+       virtual void prepare (boost::optional<dcp::Size> = boost::optional<dcp::Size>()) const {}
        virtual AVPixelFormat pixel_format () const = 0;
+       virtual size_t memory_used () const = 0;
 };
 
 boost::shared_ptr<ImageProxy> image_proxy_factory (boost::shared_ptr<cxml::Node> xml, boost::shared_ptr<Socket> socket);