start-time selectable implementations. Modified back buffer to use
BufferCapabilities.FlipContents.COPIED which should do what we need in
terms of providing us with the current frame's contents on which to paint.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2468 542714f4-19e9-0310-aa3c-eee0fc999fb1
would sure be nice to have a variant that traces the supplied image rather
than always creating a new one, and more flexibility with respect to the
alpha gradient steps might be nice, but all of that sort of thing will
just have to come later.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1950 542714f4-19e9-0310-aa3c-eee0fc999fb1
Michael Bayne