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/*
* Copyright (C) 1999-2019 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005-2006 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2006 Jesse Chappell <jesse@essej.net>
* Copyright (C) 2010-2012 Carl Hetherington <carl@carlh.net>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "pbd/error.h"
#include "pbd/pthread_utils.h"
#include "pbd/stacktrace.h"
#include "ardour/butler.h"
#include "ardour/disk_reader.h"
#include "ardour/route.h"
#include "ardour/session.h"
#include "ardour/session_event.h"
#include "ardour/track.h"
#include "ardour/types.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
/*---------------------------------------------------------------------------
BUTLER THREAD
---------------------------------------------------------------------------*/
void
Session::adjust_playback_buffering ()
{
if (!loading()) {
request_stop (false, false);
}
SessionEvent *ev = new SessionEvent (SessionEvent::AdjustPlaybackBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
queue_event (ev);
}
void
Session::adjust_capture_buffering ()
{
if (!loading()) {
request_stop (false, false);
}
SessionEvent *ev = new SessionEvent (SessionEvent::AdjustCaptureBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
queue_event (ev);
}
void
Session::schedule_playback_buffering_adjustment ()
{
add_post_transport_work (PostTransportAdjustPlaybackBuffering);
_butler->schedule_transport_work ();
}
void
Session::schedule_capture_buffering_adjustment ()
{
add_post_transport_work (PostTransportAdjustCaptureBuffering);
_butler->schedule_transport_work ();
}
void
Session::request_overwrite_buffer (boost::shared_ptr<Track> t, OverwriteReason why)
{
assert (t);
SessionEvent *ev = new SessionEvent (SessionEvent::Overwrite, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
ev->set_track (t);
ev->overwrite = why;
queue_event (ev);
}
void
Session::overwrite_some_buffers (boost::shared_ptr<Route> r, OverwriteReason why)
{
/* this is called from the process thread while handling queued
* SessionEvents. Therefore neither playback sample or read offsets in
* tracks will change while we "queue" them all for an upcoming
* overwrite.
*/
if (actively_recording()) {
return;
}
if (r) {
boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (r);
assert (t);
t->set_pending_overwrite (why);
} else {
foreach_track (&Track::set_pending_overwrite, why);
}
add_post_transport_work (PostTransportOverWrite);
_butler->schedule_transport_work ();
}
uint32_t
Session::playback_load ()
{
return (uint32_t) g_atomic_int_get (&_playback_load);
}
uint32_t
Session::capture_load ()
{
return (uint32_t) g_atomic_int_get (&_capture_load);
}
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