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/*
Copyright (C) 2004-2011 Paul Davis
This program 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.
This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_panner_shell_h__
#define __ardour_panner_shell_h__
#include <cmath>
#include <cassert>
#include <vector>
#include <string>
#include <iostream>
#include <boost/noncopyable.hpp>
#include "pbd/cartesian.h"
#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
#include "ardour/session_object.h"
namespace ARDOUR {
class Session;
class Panner;
class BufferSet;
class AudioBuffer;
class Speakers;
class Pannable;
/** Class to manage panning by instantiating and controlling
* an appropriate Panner object for a given in/out configuration.
*/
class LIBARDOUR_API PannerShell : public SessionObject
{
public:
PannerShell (std::string name, Session&, boost::shared_ptr<Pannable>);
virtual ~PannerShell ();
std::string describe_parameter (Evoral::Parameter param);
bool can_support_io_configuration (const ChanCount& /*in*/, ChanCount& /*out*/) { return true; };
void configure_io (ChanCount in, ChanCount out);
/// The fundamental Panner function
void run (BufferSet& src, BufferSet& dest, framepos_t start_frame, framepos_t end_frames, pframes_t nframes);
XMLNode& get_state ();
int set_state (const XMLNode&, int version);
PBD::Signal0<void> Changed; /* panner and/or outputs count and/or bypass state changed */
boost::shared_ptr<Panner> panner() const { return _panner; }
boost::shared_ptr<Pannable> pannable() const { return _pannable; }
bool bypassed () const;
void set_bypassed (bool);
private:
void distribute_no_automation (BufferSet& src, BufferSet& dest, pframes_t nframes, gain_t gain_coeff);
boost::shared_ptr<Panner> _panner;
boost::shared_ptr<Pannable> _pannable;
bool _bypassed;
};
} // namespace ARDOUR
#endif /* __ardour_panner_shell_h__ */
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