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-/*
- This file is part of Ingen.
- Copyright 2007-2015 David Robillard <http://drobilla.net/>
-
- Ingen is free software: you can redistribute it and/or modify it under the
- terms of the GNU Affero General Public License as published by the Free
- Software Foundation, either version 3 of the License, or any later version.
-
- Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU Affero General Public License for details.
-
- You should have received a copy of the GNU Affero General Public License
- along with Ingen. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef INGEN_ENGINE_NODEIMPL_HPP
-#define INGEN_ENGINE_NODEIMPL_HPP
-
-#include <cassert>
-#include <cstddef>
-#include <map>
-
-#include "ingen/Node.hpp"
-#include "ingen/Resource.hpp"
-#include "raul/Deletable.hpp"
-#include "raul/Path.hpp"
-
-namespace Raul { class Maid; }
-
-namespace Ingen {
-
-namespace Shared { class URIs; }
-
-namespace Server {
-
-class BlockImpl;
-class BufferFactory;
-class GraphImpl;
-class RunContext;
-
-/** An object on the audio graph (a Graph, Block, or Port).
- *
- * Each of these is a Raul::Deletable and so can be deleted in a realtime safe
- * way from anywhere, and they all have a map of variable for clients to store
- * arbitrary values in (which the engine puts no significance to whatsoever).
- *
- * \ingroup engine
- */
-class NodeImpl : public Node
-{
-public:
- virtual ~NodeImpl() {}
-
- const Raul::Symbol& symbol() const { return _symbol; }
- const BlockImpl* parent() const { return _parent; }
- BlockImpl* parent() { return _parent; }
-
- /** Rename */
- void set_uri(const Raul::URI& uri) override {
- _path = uri_to_path(uri);
- _symbol = Raul::Symbol(_path.is_root() ? "main" : _path.symbol());
- Node::set_uri(uri);
- }
-
- const Atom& get_property(const Raul::URI& key) const;
-
- /** The Graph this object is a child of. */
- virtual GraphImpl* parent_graph() const;
-
- const Raul::Path& path() const { return _path; }
-
- /** Prepare for a new (external) polyphony value.
- *
- * Preprocessor thread, poly is actually applied by apply_poly.
- * \return true on success.
- */
- virtual bool prepare_poly(BufferFactory& bufs, uint32_t poly) = 0;
-
- /** Apply a new (external) polyphony value.
- *
- * \param context Process context (process thread only).
- * \param poly Must be <= the most recent value passed to prepare_poly.
- */
- virtual bool apply_poly(RunContext& context, uint32_t poly) = 0;
-
-protected:
- NodeImpl(const Ingen::URIs& uris,
- BlockImpl* parent,
- const Raul::Symbol& symbol);
-
- BlockImpl* _parent;
- Raul::Path _path;
- Raul::Symbol _symbol;
-};
-
-} // namespace Server
-} // namespace Ingen
-
-#endif // INGEN_ENGINE_NODEIMPL_HPP