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livetrax/libs/panners/1in2out/panner_1in2out.h

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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/panner.h"
namespace ARDOUR {
class Panner1in2out : public Panner
{
public:
Panner1in2out (boost::shared_ptr<Pannable>);
~Panner1in2out ();
void set_position (double);
bool clamp_position (double&);
std::pair<double, double> position_range () const;
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double position() const;
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ChanCount in() const { return ChanCount (DataType::AUDIO, 1); }
ChanCount out() const { return ChanCount (DataType::AUDIO, 2); }
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std::set<Evoral::Parameter> what_can_be_automated() const;
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static Panner* factory (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>);
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std::string describe_parameter (Evoral::Parameter);
std::string value_as_string (boost::shared_ptr<const AutomationControl>) const;
XMLNode& get_state ();
void reset ();
protected:
float left;
float right;
float desired_left;
float desired_right;
float left_interp;
float right_interp;
void distribute_one (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
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void distribute_one_automated (AudioBuffer& srcbuf, BufferSet& obufs,
samplepos_t start, samplepos_t end, pframes_t nframes,
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pan_t** buffers, uint32_t which);
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void update ();
};
} // namespace
#endif /* __ardour_panner_1in2out_h__ */