2 Copyright (C) 2006 Paul Davis
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2 of the License, or (at your option)
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation, Inc.,
16 675 Mass Ave, Cambridge, MA 02139, USA.
19 #ifndef __ardour_delivery_h__
20 #define __ardour_delivery_h__
24 #include "ardour/types.h"
25 #include "ardour/chan_count.h"
26 #include "ardour/io_processor.h"
37 class Delivery : public IOProcessor
41 /* main outputs - delivers out-of-place to port buffers, and cannot be removed */
43 /* send - delivers to port buffers, leaves input buffers untouched */
45 /* insert - delivers to port buffers and receives in-place from port buffers */
47 /* listen - internal send used only to deliver to control/monitor bus */
49 /* aux - internal send used to deliver to any bus, by user request */
53 static bool role_requires_output_ports (Role r) { return r == Main || r == Send || r == Insert; }
55 /* Delivery to an existing output */
57 Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<Pannable>, boost::shared_ptr<MuteMaster> mm, const std::string& name, Role);
59 /* Delivery to a new output owned by this object */
61 Delivery (Session& s, boost::shared_ptr<Pannable>, boost::shared_ptr<MuteMaster> mm, const std::string& name, Role);
64 bool set_name (const std::string& name);
65 std::string display_name() const;
67 Role role() const { return _role; }
68 bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
69 bool configure_io (ChanCount in, ChanCount out);
71 void run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool);
73 /* supplemental method used with MIDI */
75 void flush_buffers (framecnt_t nframes, framepos_t time);
76 void no_outs_cuz_we_no_monitor(bool);
77 virtual void cycle_start (pframes_t);
78 void transport_stopped (framepos_t frame);
79 void realtime_locate ();
81 BufferSet& output_buffers() { return *_output_buffers; }
83 PBD::Signal0<void> MuteChange;
85 static PBD::Signal1<void, pframes_t> CycleStart;
87 XMLNode& state (bool full);
88 int set_state (const XMLNode&, int version);
92 static int disable_panners (void);
93 static int reset_panners (void);
95 boost::shared_ptr<PannerShell> panner_shell() const { return _panshell; }
96 boost::shared_ptr<Panner> panner() const;
100 void defer_pan_reset ();
101 void allow_pan_reset ();
103 uint32_t pans_required() const { return _configured_input.n_audio(); }
104 virtual uint32_t pan_outs() const;
108 BufferSet* _output_buffers;
109 gain_t _current_gain;
110 boost::shared_ptr<PannerShell> _panshell;
112 gain_t target_gain ();
115 bool _no_outs_cuz_we_no_monitor;
116 boost::shared_ptr<MuteMaster> _mute_master;
118 static bool panners_legal;
119 static PBD::Signal0<int> PannersLegal;
121 int panners_became_legal ();
122 PBD::ScopedConnection panner_legal_c;
123 void output_changed (IOChange, void*);
125 bool _no_panner_reset;
129 } // namespace ARDOUR
131 #endif // __ardour__h__