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/threads.h>
30 #include "pbd/error.h"
31 #include "pbd/pthread_utils.h"
32 #include "pbd/stacktrace.h"
34 #include "ardour/butler.h"
35 #include "ardour/route.h"
36 #include "ardour/session.h"
37 #include "ardour/session_event.h"
38 #include "ardour/track.h"
39 #include "ardour/types.h"
44 using namespace ARDOUR;
47 /* XXX put this in the right place */
49 static inline uint32_t next_power_of_two (uint32_t n)
61 /*---------------------------------------------------------------------------
63 ---------------------------------------------------------------------------*/
66 Session::adjust_playback_buffering ()
68 request_stop (false, false);
69 SessionEvent *ev = new SessionEvent (SessionEvent::AdjustPlaybackBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
74 Session::adjust_capture_buffering ()
76 request_stop (false, false);
77 SessionEvent *ev = new SessionEvent (SessionEvent::AdjustCaptureBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
82 Session::schedule_playback_buffering_adjustment ()
84 add_post_transport_work (PostTransportAdjustPlaybackBuffering);
85 _butler->schedule_transport_work ();
89 Session::schedule_capture_buffering_adjustment ()
91 add_post_transport_work (PostTransportAdjustCaptureBuffering);
92 _butler->schedule_transport_work ();
96 Session::schedule_curve_reallocation ()
98 add_post_transport_work (PostTransportCurveRealloc);
99 _butler->schedule_transport_work ();
103 Session::request_overwrite_buffer (Track* t)
105 SessionEvent *ev = new SessionEvent (SessionEvent::Overwrite, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
110 /** Process thread. */
112 Session::overwrite_some_buffers (Track* t)
114 if (actively_recording()) {
120 t->set_pending_overwrite (true);
124 boost::shared_ptr<RouteList> rl = routes.reader();
125 for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
126 boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
128 tr->set_pending_overwrite (true);
133 add_post_transport_work (PostTransportOverWrite);
134 _butler->schedule_transport_work ();
138 Session::playback_load ()
140 return (uint32_t) g_atomic_int_get (&_playback_load);
144 Session::capture_load ()
146 return (uint32_t) g_atomic_int_get (&_capture_load);