2 Copyright (C) 1999-2002 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <glibmm/thread.h>
30 #include "pbd/error.h"
31 #include "pbd/pthread_utils.h"
32 #include "pbd/stacktrace.h"
34 #include "ardour/audio_diskstream.h"
35 #include "ardour/audioengine.h"
36 #include "ardour/butler.h"
37 #include "ardour/configuration.h"
38 #include "ardour/io.h"
39 #include "ardour/midi_diskstream.h"
40 #include "ardour/session.h"
41 #include "ardour/timestamps.h"
42 #include "ardour/track.h"
47 using namespace ARDOUR;
50 /* XXX put this in the right place */
52 static inline uint32_t next_power_of_two (uint32_t n)
64 /*---------------------------------------------------------------------------
66 ---------------------------------------------------------------------------*/
69 Session::adjust_playback_buffering ()
71 request_stop (false, false);
72 SessionEvent *ev = new SessionEvent (SessionEvent::AdjustPlaybackBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
77 Session::adjust_capture_buffering ()
79 request_stop (false, false);
80 SessionEvent *ev = new SessionEvent (SessionEvent::AdjustCaptureBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
85 Session::schedule_playback_buffering_adjustment ()
87 add_post_transport_work (PostTransportAdjustPlaybackBuffering);
88 _butler->schedule_transport_work ();
92 Session::schedule_capture_buffering_adjustment ()
94 add_post_transport_work (PostTransportAdjustCaptureBuffering);
95 _butler->schedule_transport_work ();
99 Session::schedule_curve_reallocation ()
101 add_post_transport_work (PostTransportCurveRealloc);
102 _butler->schedule_transport_work ();
106 Session::request_overwrite_buffer (Track* t)
108 SessionEvent *ev = new SessionEvent (SessionEvent::Overwrite, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
113 /** Process thread. */
115 Session::overwrite_some_buffers (Track* t)
117 if (actively_recording()) {
123 t->set_pending_overwrite (true);
127 boost::shared_ptr<RouteList> rl = routes.reader();
128 for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
129 boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
131 tr->set_pending_overwrite (true);
136 add_post_transport_work (PostTransportOverWrite);
137 _butler->schedule_transport_work ();
141 Session::playback_load ()
143 return (uint32_t) g_atomic_int_get (&_playback_load);
147 Session::capture_load ()
149 return (uint32_t) g_atomic_int_get (&_capture_load);