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/*
Copyright (C) 2006 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_delivery_h__
#define __ardour_delivery_h__
#include <string>
#include "ardour/types.h"
#include "ardour/chan_count.h"
#include "ardour/io_processor.h"
namespace ARDOUR {
class BufferSet;
class IO;
class MuteMaster;
class PannerShell;
class Panner;
class Pannable;
class Delivery : public IOProcessor
{
public:
enum Role {
/* main outputs - delivers out-of-place to port buffers, and cannot be removed */
Main = 0x1,
/* send - delivers to port buffers, leaves input buffers untouched */
Send = 0x2,
/* insert - delivers to port buffers and receives in-place from port buffers */
Insert = 0x4,
/* listen - internal send used only to deliver to control/monitor bus */
Listen = 0x8,
/* aux - internal send used to deliver to any bus, by user request */
Aux = 0x10
};
static bool role_requires_output_ports (Role r) { return r == Main || r == Send || r == Insert; }
/* Delivery to an existing output */
Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<Pannable>, boost::shared_ptr<MuteMaster> mm, const std::string& name, Role);
/* Delivery to a new output owned by this object */
Delivery (Session& s, boost::shared_ptr<Pannable>, boost::shared_ptr<MuteMaster> mm, const std::string& name, Role);
~Delivery ();
bool set_name (const std::string& name);
std::string display_name() const;
Role role() const { return _role; }
bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
bool configure_io (ChanCount in, ChanCount out);
void run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool);
/* supplemental method used with MIDI */
void flush_buffers (framecnt_t nframes, framepos_t time);
void no_outs_cuz_we_no_monitor(bool);
void cycle_start (pframes_t);
void transport_stopped (framepos_t frame);
void realtime_locate ();
BufferSet& output_buffers() { return *_output_buffers; }
PBD::Signal0<void> MuteChange;
static PBD::Signal1<void, pframes_t> CycleStart;
XMLNode& state (bool full);
int set_state (const XMLNode&, int version);
/* Panning */
static int disable_panners (void);
static int reset_panners (void);
boost::shared_ptr<PannerShell> panner_shell() const { return _panshell; }
boost::shared_ptr<Panner> panner() const;
void reset_panner ();
void defer_pan_reset ();
void allow_pan_reset ();
uint32_t pans_required() const { return _configured_input.n_audio(); }
protected:
Role _role;
BufferSet* _output_buffers;
gain_t _current_gain;
bool _no_outs_cuz_we_no_monitor;
boost::shared_ptr<MuteMaster> _mute_master;
bool no_panner_reset;
boost::shared_ptr<PannerShell> _panshell;
framecnt_t scnt;
static bool panners_legal;
static PBD::Signal0<int> PannersLegal;
int panners_became_legal ();
PBD::ScopedConnection panner_legal_c;
void output_changed (IOChange, void*);
gain_t target_gain ();
};
} // namespace ARDOUR
#endif // __ardour__h__
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