session_butler.cc

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/*
    Copyright (C) 1999-2002 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.

*/

#include "pbd/error.h"
#include "pbd/pthread_utils.h"
#include "pbd/stacktrace.h"

#include "ardour/butler.h"
#include "ardour/route.h"
#include "ardour/session.h"
#include "ardour/session_event.h"
#include "ardour/track.h"
#include "ardour/types.h"

#include "i18n.h"

using namespace std;
using namespace ARDOUR;
using namespace PBD;

/*---------------------------------------------------------------------------
 BUTLER THREAD
 ---------------------------------------------------------------------------*/

void
Session::adjust_playback_buffering ()
{
        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 ()
{
        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::schedule_curve_reallocation ()
{
        add_post_transport_work (PostTransportCurveRealloc);
        _butler->schedule_transport_work ();
}

void
Session::request_overwrite_buffer (Track* t)
{
        SessionEvent *ev = new SessionEvent (SessionEvent::Overwrite, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
        ev->set_ptr (t);
        queue_event (ev);
}

void
Session::overwrite_some_buffers (Track* t)
{
        if (actively_recording()) {
                return;
        }

        if (t) {

                t->set_pending_overwrite (true);

        } else {

                boost::shared_ptr<RouteList> rl = routes.reader();
                for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
                        boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
                        if (tr) {
                                tr->set_pending_overwrite (true);
                        }
                }
        }

        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);
}