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author | David Robillard <d@drobilla.net> | 2012-08-19 02:57:26 +0000 |
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committer | David Robillard <d@drobilla.net> | 2012-08-19 02:57:26 +0000 |
commit | ba1f169967f64b9657074fba2de803b29829345c (patch) | |
tree | b46baed3c4d96f2129cb58686b09b2b86d86d05e /src/server/NodeImpl.hpp | |
parent | 800c329a0b77f9044923885abe0728028eca8350 (diff) | |
download | ingen-ba1f169967f64b9657074fba2de803b29829345c.tar.gz ingen-ba1f169967f64b9657074fba2de803b29829345c.tar.bz2 ingen-ba1f169967f64b9657074fba2de803b29829345c.zip |
GraphObject => Node
git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@4722 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/server/NodeImpl.hpp')
-rw-r--r-- | src/server/NodeImpl.hpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/server/NodeImpl.hpp b/src/server/NodeImpl.hpp new file mode 100644 index 00000000..937d4dea --- /dev/null +++ b/src/server/NodeImpl.hpp @@ -0,0 +1,108 @@ +/* + This file is part of Ingen. + Copyright 2007-2012 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_NODEIMPLIMPL_HPP +#define INGEN_ENGINE_NODEIMPLIMPL_HPP + +#include <cassert> +#include <cstddef> +#include <map> + +#include "ingen/Node.hpp" +#include "ingen/Resource.hpp" +#include "raul/Deletable.hpp" +#include "raul/Path.hpp" +#include "raul/SharedPtr.hpp" + +namespace Raul { class Maid; } + +namespace Ingen { + +namespace Shared { class URIs; } + +namespace Server { + +class BufferFactory; +class Context; +class GraphImpl; +class ProcessContext; + +/** 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; } + + Node* graph_parent() const { return _parent; } + NodeImpl* parent() const { return _parent; } + + /** Rename */ + virtual void set_path(const Raul::Path& new_path) { + _path = new_path; + const char* const new_sym = new_path.symbol(); + if (new_sym[0] != '\0') { + _symbol = Raul::Symbol(new_sym); + } + set_uri(Node::path_to_uri(new_path)); + } + + const Raul::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. + * + * Audio thread. + * + * \param poly Must be <= the most recent value passed to prepare_poly. + * \param maid Any objects no longer needed will be pushed to this + */ + virtual bool apply_poly( + ProcessContext& context, Raul::Maid& maid, uint32_t poly) = 0; + +protected: + NodeImpl(Ingen::URIs& uris, + NodeImpl* parent, + const Raul::Symbol& symbol); + + NodeImpl* _parent; + Raul::Path _path; + Raul::Symbol _symbol; +}; + +} // namespace Server +} // namespace Ingen + +#endif // INGEN_ENGINE_NODEIMPLIMPL_HPP |