86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
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/*
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Copyright (C) 2004-2011 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ardour_panner_2in2out_h__
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#define __ardour_panner_2in2out_h__
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#include <cmath>
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#include <cassert>
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#include <vector>
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#include <string>
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#include <iostream>
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#include "pbd/stateful.h"
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#include "pbd/controllable.h"
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#include "pbd/cartesian.h"
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#include "ardour/automation_control.h"
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#include "ardour/automatable.h"
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#include "ardour/panner.h"
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#include "ardour/types.h"
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namespace ARDOUR {
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class Panner2in2out : public Panner
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{
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public:
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Panner2in2out (boost::shared_ptr<Pannable>);
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~Panner2in2out ();
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ChanCount in() const { return ChanCount (DataType::AUDIO, 2); }
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ChanCount out() const { return ChanCount (DataType::AUDIO, 2); }
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bool clamp_position (double&);
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bool clamp_width (double&);
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void set_position (double);
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void set_width (double);
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double position () const;
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double width () const;
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static Panner* factory (boost::shared_ptr<Pannable>, Speakers&);
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XMLNode& state (bool full_state);
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XMLNode& get_state (void);
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int set_state (const XMLNode&, int version);
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void update ();
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protected:
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float left[2];
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float right[2];
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float desired_left[2];
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float desired_right[2];
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float left_interp[2];
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float right_interp[2];
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private:
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bool clamp_stereo_pan (double& direction_as_lr_fract, double& width);
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void distribute_one (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
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void distribute_one_automated (AudioBuffer& srcbuf, BufferSet& obufs,
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framepos_t start, framepos_t end, pframes_t nframes,
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pan_t** buffers, uint32_t which);
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};
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} // namespace
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#endif /* __ardour_panner_2in2out_h__ */
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