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Diffstat (limited to 'src/server/InputPort.hpp')
-rw-r--r-- | src/server/InputPort.hpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/server/InputPort.hpp b/src/server/InputPort.hpp new file mode 100644 index 00000000..0ecd5317 --- /dev/null +++ b/src/server/InputPort.hpp @@ -0,0 +1,93 @@ +/* This file is part of Ingen. + * Copyright 2007-2011 David Robillard <http://drobilla.net> + * + * Ingen 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. + * + * 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 General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef INGEN_ENGINE_INPUTPORT_HPP +#define INGEN_ENGINE_INPUTPORT_HPP + +#include <string> +#include <cstdlib> +#include <cassert> +#include "raul/List.hpp" +#include "raul/SharedPtr.hpp" +#include "PortImpl.hpp" + +namespace Ingen { +namespace Server { + +class ConnectionImpl; +class Context; +class NodeImpl; +class OutputPort; +class ProcessContext; + +/** An input port on a Node or Patch. + * + * All ports have a Buffer, but the actual contents (data) of that buffer may be + * set directly to the incoming connection's buffer if there's only one inbound + * connection, to eliminate the need to copy/mix. + * + * If a port has multiple connections, they will be mixed down into the local + * buffer and it will be used. + * + * \ingroup engine + */ +class InputPort : virtual public PortImpl +{ +public: + InputPort(BufferFactory& bufs, + NodeImpl* parent, + const Raul::Symbol& symbol, + uint32_t index, + uint32_t poly, + PortType type, + const Raul::Atom& value, + size_t buffer_size=0); + + virtual ~InputPort() {} + + typedef Raul::List< SharedPtr<ConnectionImpl> > Connections; + + void add_connection(Connections::Node* c); + Connections::Node* remove_connection(ProcessContext& context, const OutputPort* src_port); + + bool apply_poly(Raul::Maid& maid, uint32_t poly); + + bool get_buffers(BufferFactory& bufs, + Raul::Array<BufferFactory::Ref>* buffers, + uint32_t poly); + + void pre_process(Context& context); + void post_process(Context& context); + + size_t num_connections() const { return _num_connections; } ///< Pre-process thread + void increment_num_connections() { ++_num_connections; } + void decrement_num_connections() { --_num_connections; } + + bool is_input() const { return true; } + bool is_output() const { return false; } + + bool direct_connect() const; + +protected: + size_t _num_connections; ///< Pre-process thread + Connections _connections; +}; + +} // namespace Server +} // namespace Ingen + +#endif // INGEN_ENGINE_INPUTPORT_HPP |