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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_1in2out_h__
#define __ardour_panner_1in2out_h__
#include <cmath>
#include <cassert>
#include <vector>
#include <string>
#include <iostream>
#include "pbd/stateful.h"
#include "pbd/controllable.h"
#include "pbd/cartesian.h"
#include "ardour/types.h"
#include "ardour/automation_control.h"
#include "ardour/automatable.h"
namespace ARDOUR {
class PannerStereoBase : public class Panner
{
public:
PannerStereoBase (Panner&);
~PannerStereoBase ();
void set_position (double);
ChanCount in() const { return ChanCount (DataType::AUDIO, 1); }
ChanCount out() const { return ChanCount (DataType::AUDIO, 2); }
/* this class just leaves the pan law itself to be defined
by the update(), do_distribute_automated()
methods. derived classes also need a factory method
and a type name. See EqualPowerStereoPanner as an example.
*/
void do_distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes);
protected:
boost::shared_ptr<AutomationControl> _position;
float left;
float right;
float desired_left;
float desired_right;
float left_interp;
float right_interp;
};
}
#endif /* __ardour_panner_1in2out_h__ */
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