Flyspray: FS#8799
This will allow for pretty themes, for example those with nice glass effects on their backdrops (some might argue they're wasting screen space but it's upto them),
as well as allowing for future background WPS updates in the main UI.
Plugins are not converted yet, they simply use the full screen. Ideally, any plugin that does *not* want the UI viewport, should take care of that itself (i.e. plugins should normally use the UI viewport).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22365 a1c6a512-1295-4272-9138-f99709370657
-add wrappers wps_data_load() and wps_data_init() so that other code doesn't need the structs for that
-change (and rename) gui_sync_wps_uses_albumart() to take points to be filled as parameter to get the AA size of a wps
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22139 a1c6a512-1295-4272-9138-f99709370657
