- virtual bool get_frame(Surface &surface,Time time, ProgressCallback *callback=NULL)=0;
- virtual bool get_frame(Surface &surface,Time time,
+ virtual bool get_frame(Surface &surface, const RendDesc &renddesc, Time time, ProgressCallback *callback=NULL)=0;
+ virtual bool get_frame(Surface &surface, const RendDesc &renddesc,Time time,