101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/*
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NODEWIRING.hpp - Implementation of the node network and operation control
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Copyright (C) Lumiera.org
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2008, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef ENGINE_NODEWIRING_H
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#define ENGINE_NODEWIRING_H
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#include "proc/engine/procnode.hpp"
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#include "lib/allocation-cluster.hpp"
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#include "proc/engine/nodewiring-def.hpp"
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//#include <boost/noncopyable.hpp>
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#include <boost/scoped_ptr.hpp>
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//#include <cstddef>
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namespace proc {
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namespace engine {
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class WiringFactory;
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namespace config { class WiringFactoryImpl; }
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using lib::RefArray;
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/**
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* Actual implementation of the link between nodes,
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* also acting as "track switch" for the execution path
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* chosen while operating the node network for rendering.
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* @param STATE Invocation state object controlling the
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* behaviour of callDown() while rendering.
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* @see StateAdapter
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* @see NodeFactory
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*/
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template<class STATE>
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class NodeWiring
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: public WiringDescriptor
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{
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public:
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NodeWiring(WiringSituation const& setup)
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: WiringDescriptor(setup.makeOutDescriptor(),
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setup.makeInDescriptor(),
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setup.resolveProcessingFunction(),
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setup.createNodeID())
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{ }
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private:
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virtual BuffHandle
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callDown (State& currentProcess, uint requestedOutputNr) const
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{
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STATE thisStep (currentProcess, *this, requestedOutputNr);
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return thisStep.retrieve (); // fetch or calculate results
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}
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};
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class WiringFactory
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{
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lib::AllocationCluster& alloc_;
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boost::scoped_ptr<config::WiringFactoryImpl> pImpl_;
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public:
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WiringFactory (lib::AllocationCluster& a);
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~WiringFactory ();
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WiringDescriptor&
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operator() (WiringSituation const& setup);
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};
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}} // namespace proc::engine
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#endif
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