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-rw-r--r--src/libs/engine/Connection.hpp97
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diff --git a/src/libs/engine/Connection.hpp b/src/libs/engine/Connection.hpp
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--- a/src/libs/engine/Connection.hpp
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-/* This file is part of Ingen.
- * Copyright (C) 2007 Dave 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 CONNECTION_H
-#define CONNECTION_H
-
-#include <cstdlib>
-#include <boost/utility.hpp>
-#include <raul/Deletable.hpp>
-#include "interface/DataType.hpp"
-#include "PortImpl.hpp"
-#include "types.hpp"
-
-namespace Ingen {
-
-class PortImpl;
-class Buffer;
-
-
-/** Represents a single inbound connection for an InputPort.
- *
- * This can be a group of ports (ie coming from a polyphonic Node) or
- * a single Port. This class exists basically as an abstraction of mixing
- * down polyphonic inputs, so InputPort can just deal with mixing down
- * multiple connections (oblivious to the polyphonic situation of the
- * connection itself).
- *
- * \ingroup engine
- */
-class Connection : public Raul::Deletable
-{
-public:
- Connection(PortImpl* src_port, PortImpl* dst_port);
- virtual ~Connection();
-
- PortImpl* src_port() const { return _src_port; }
- PortImpl* dst_port() const { return _dst_port; }
-
- /** Used by some (recursive) events to prevent double disconnections */
- bool pending_disconnection() { return _pending_disconnection; }
- void pending_disconnection(bool b) { _pending_disconnection = b; }
-
- void process(ProcessContext& context);
-
- /** Get the buffer for a particular voice.
- * A Connection is smart - it knows the destination port requesting the
- * buffer, and will return accordingly (ie the same buffer for every voice
- * in a mono->poly connection).
- */
- inline Buffer* buffer(size_t voice) const;
-
- void set_buffer_size(size_t size);
- void prepare_poly(uint32_t poly);
- void apply_poly(Raul::Maid& maid, uint32_t poly);
-
- DataType type() const { return _src_port->type(); }
-
-protected:
- PortImpl* const _src_port;
- PortImpl* const _dst_port;
- Buffer* _local_buffer;
- size_t _buffer_size;
- bool _must_mix;
- bool _pending_disconnection;
-};
-
-
-inline Buffer*
-Connection::buffer(size_t voice) const
-{
- if (_must_mix) {
- return _local_buffer;
- } else if ( ! _src_port->polyphonic()) {
- return _src_port->buffer(0);
- } else {
- return _src_port->buffer(voice);
- }
-}
-
-
-} // namespace Ingen
-
-#endif // CONNECTION_H