88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/* This file is part of Om. Copyright (C) 2006 Dave Robillard.
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*
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* Om is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* Om is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PORTBASE_H
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#define PORTBASE_H
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#include <string>
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#include "util/types.h"
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#include "Array.h"
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#include "Port.h"
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#include "Buffer.h"
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using std::string;
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namespace Om {
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class MidiMessage;
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class Node;
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/** A port (with a type).
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*
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* This is basically just a buffer and a bunch of flags and helper methods.
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* All the interesting functionality of ports is in InputPort.
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*
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* \ingroup engine
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*/
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template <typename T>
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class PortBase : public Port
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{
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public:
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virtual ~PortBase();
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void set_value(size_t voice, T val, size_t offset);
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void set_value(T val, size_t offset);
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Buffer<T>* buffer(size_t voice) const { return m_buffers.at(voice); }
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virtual void prepare_buffers(size_t nframes);
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virtual void clear_buffers();
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PortBase* tied_port() const { return m_tied_port; }
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void untie() { m_is_tied = false; m_tied_port = NULL; }
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size_t buffer_size() const { return m_buffer_size; }
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/** Used by drivers to prevent port from changing buffers */
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void fixed_buffers(bool b) { m_fixed_buffers = b; }
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bool fixed_buffers() { return m_fixed_buffers; }
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protected:
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PortBase(Node* const node, const string& name, size_t index, size_t poly, PortInfo* port_info, size_t buffer_size);
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// Prevent copies (undefined)
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PortBase(const PortBase<T>& copy);
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PortBase& operator=(const Port&);
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void allocate_buffers();
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size_t m_buffer_size;
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bool m_fixed_buffers;
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bool m_is_tied;
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PortBase* m_tied_port;
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Array<Buffer<T>*> m_buffers;
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};
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template class PortBase<sample>;
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template class PortBase<MidiMessage>;
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} // namespace Om
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#endif // PORTBASE_H
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