Display facade interface

[ichthyo]

Design an interface allowing the lower layers to send frames to output, without violating the layer separation requirements. Note this is mainly design work and doesn't mean implementing a player or render process

Requirements

• layer separation requirements
• must be performant
• integration with memory management
• extensible to multiple displayers (viewers), multiple output processes and differend kinds of output.

[ichthyo]

In 2/2009, joel and ichthyo did a player mockup / design study. This includes a (maybe) first draft of such an interface. Thus, for now, I take this ticket

[ichthyo]

(In #86) I'll take responsibility here, meaning that I'll have a look regarding the integration of the various parts. For rendering actually to happen, we need the colaboration of all 3 layers.