state-closure-obsolete.hpp

/*
  STATE-CLOSURE.hpp  -  Key Interface representing a render process and encapsulating state

   Copyright (C)
     2008,            Hermann Vosseler <Ichthyostega@web.de>

  **Lumiera** is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2 of the License, or (at your
  option) any later version. See the file COPYING for further details.

*/


#ifndef STEAM_ENGINE_STATE_CLOSURE_OBSOLETE_H
#define STEAM_ENGINE_STATE_CLOSURE_OBSOLETE_H


#include "lib/error.hpp"
#include "lib/frameid.hpp"
#include "steam/engine/buffhandle.hpp"

#include <cstddef>


namespace steam {
namespace engine { 
  
  using lumiera::FrameID;
  using lumiera::NodeID;

  class StateAdapter;
  class BuffTableStorage;
  
  

  class StateClosure_OBSOLETE
    {
    public:
      virtual BuffHandle allocateBuffer (const lumiera::StreamType*)  =0;
      
      virtual void releaseBuffer (BuffHandle&)  =0;
      
      virtual void is_calculated (BuffHandle const&)  =0;
      
      virtual FrameID const& genFrameID (NodeID const&, uint chanNo)  =0;
      
      virtual BuffHandle fetch (FrameID const&)  =0;
      
      virtual BuffTableStorage& getBuffTableStorage()  =0; 
      
      
    protected:
      virtual ~StateClosure_OBSOLETE() {};
      
      virtual StateClosure_OBSOLETE& getCurrentImplementation () =0;
      
      friend class engine::StateAdapter;
    };
  
}} // namespace steam::engine
#endif /*STEAM_ENGINE_STATE_CLOSURE_OBSOLETE_H*/