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c557bf28a7
git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@3209 d708f5d6-7413-0410-9779-e7cbd77b26cf
1312 lines
26 KiB
C++
1312 lines
26 KiB
C++
/*
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Copyright (C) 2002 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <unistd.h>
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#include <cerrno>
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#include <vector>
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#include <sstream>
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#include <glibmm/timer.h>
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#include <pbd/pthread_utils.h>
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#include <pbd/stacktrace.h>
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#include <ardour/audioengine.h>
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#include <ardour/buffer.h>
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#include <ardour/port.h>
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#include <ardour/session.h>
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#include <ardour/cycle_timer.h>
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#include <ardour/utils.h>
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#ifdef VST_SUPPORT
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#include <fst.h>
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#endif
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#include <ardour/timestamps.h>
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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gint AudioEngine::m_meter_exit;
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static void
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ardour_jack_error (const char* msg)
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{
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// throw JACK errors away - they cause visual clutter
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// error << "JACK: " << msg << endmsg;
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}
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AudioEngine::AudioEngine (string client_name)
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: ports (new Ports)
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{
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session = 0;
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session_remove_pending = false;
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_running = false;
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_has_run = false;
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last_monitor_check = 0;
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monitor_check_interval = max_frames;
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_processed_frames = 0;
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_freewheeling = false;
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_usecs_per_cycle = 0;
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_jack = 0;
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_frame_rate = 0;
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_buffer_size = 0;
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_freewheeling = false;
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_freewheel_thread_registered = false;
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m_meter_thread = 0;
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g_atomic_int_set (&m_meter_exit, 0);
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if (connect_to_jack (client_name)) {
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throw NoBackendAvailable ();
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}
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}
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AudioEngine::~AudioEngine ()
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{
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{
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Glib::Mutex::Lock tm (_process_lock);
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session_removed.signal ();
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if (_running) {
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jack_client_close (_jack);
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}
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stop_metering_thread ();
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}
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}
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void
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_thread_init_callback (void *arg)
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{
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/* make sure that anybody who needs to know about this thread
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knows about it.
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*/
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PBD::ThreadCreatedWithRequestSize (pthread_self(), X_("Audioengine"), 4096);
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}
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int
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AudioEngine::start ()
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{
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if (!_running) {
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if (session) {
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nframes_t blocksize = jack_get_buffer_size (_jack);
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BootMessage (_("Connect session to engine"));
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session->set_block_size (blocksize);
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session->set_frame_rate (jack_get_sample_rate (_jack));
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/* page in as much of the session process code as we
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can before we really start running.
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*/
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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}
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_processed_frames = 0;
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last_monitor_check = 0;
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jack_on_shutdown (_jack, halted, this);
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jack_set_graph_order_callback (_jack, _graph_order_callback, this);
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jack_set_thread_init_callback (_jack, _thread_init_callback, this);
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jack_set_process_callback (_jack, _process_callback, this);
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jack_set_sample_rate_callback (_jack, _sample_rate_callback, this);
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jack_set_buffer_size_callback (_jack, _bufsize_callback, this);
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jack_set_xrun_callback (_jack, _xrun_callback, this);
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jack_set_sync_callback (_jack, _jack_sync_callback, this);
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jack_set_freewheel_callback (_jack, _freewheel_callback, this);
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if (Config->get_jack_time_master()) {
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jack_set_timebase_callback (_jack, 0, _jack_timebase_callback, this);
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}
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if (jack_activate (_jack) == 0) {
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_running = true;
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_has_run = true;
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Running(); /* EMIT SIGNAL */
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} else {
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// error << _("cannot activate JACK client") << endmsg;
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}
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start_metering_thread();
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}
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return _running ? 0 : -1;
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}
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int
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AudioEngine::stop (bool forever)
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{
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if (_running) {
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_running = false;
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stop_metering_thread ();
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if (forever) {
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jack_client_t* foo = _jack;
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_jack = 0;
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jack_client_close (foo);
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} else {
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jack_deactivate (_jack);
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}
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Stopped(); /* EMIT SIGNAL */
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}
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return _running ? -1 : 0;
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}
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bool
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AudioEngine::get_sync_offset (nframes_t& offset) const
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{
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#ifdef HAVE_JACK_VIDEO_SUPPORT
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jack_position_t pos;
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(void) jack_transport_query (_jack, &pos);
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if (pos.valid & JackVideoFrameOffset) {
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offset = pos.video_offset;
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return true;
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}
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#endif
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return false;
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}
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void
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AudioEngine::_jack_timebase_callback (jack_transport_state_t state, nframes_t nframes,
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jack_position_t* pos, int new_position, void *arg)
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{
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static_cast<AudioEngine*> (arg)->jack_timebase_callback (state, nframes, pos, new_position);
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}
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void
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AudioEngine::jack_timebase_callback (jack_transport_state_t state, nframes_t nframes,
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jack_position_t* pos, int new_position)
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{
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if (_jack && session && session->synced_to_jack()) {
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session->jack_timebase_callback (state, nframes, pos, new_position);
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}
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}
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int
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AudioEngine::_jack_sync_callback (jack_transport_state_t state, jack_position_t* pos, void* arg)
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{
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return static_cast<AudioEngine*> (arg)->jack_sync_callback (state, pos);
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}
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int
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AudioEngine::jack_sync_callback (jack_transport_state_t state, jack_position_t* pos)
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{
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if (_jack && session) {
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return session->jack_sync_callback (state, pos);
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}
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return true;
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}
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int
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AudioEngine::_xrun_callback (void *arg)
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{
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AudioEngine* ae = static_cast<AudioEngine*> (arg);
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if (ae->jack()) {
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ae->Xrun (); /* EMIT SIGNAL */
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}
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return 0;
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}
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int
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AudioEngine::_graph_order_callback (void *arg)
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{
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AudioEngine* ae = static_cast<AudioEngine*> (arg);
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if (ae->jack()) {
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ae->GraphReordered (); /* EMIT SIGNAL */
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}
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return 0;
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}
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int
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AudioEngine::_process_callback (nframes_t nframes, void *arg)
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{
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return static_cast<AudioEngine *> (arg)->process_callback (nframes);
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}
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void
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AudioEngine::_freewheel_callback (int onoff, void *arg)
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{
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static_cast<AudioEngine*>(arg)->_freewheeling = onoff;
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}
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int
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AudioEngine::process_callback (nframes_t nframes)
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{
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// CycleTimer ct ("AudioEngine::process");
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Glib::Mutex::Lock tm (_process_lock, Glib::TRY_LOCK);
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nframes_t next_processed_frames;
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/* handle wrap around of total frames counter */
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if (max_frames - _processed_frames < nframes) {
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next_processed_frames = nframes - (max_frames - _processed_frames);
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} else {
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next_processed_frames = _processed_frames + nframes;
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}
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if (!tm.locked() || session == 0) {
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_processed_frames = next_processed_frames;
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return 0;
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}
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if (session_remove_pending) {
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session = 0;
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session_remove_pending = false;
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session_removed.signal();
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_processed_frames = next_processed_frames;
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return 0;
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}
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if (_freewheeling) {
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if (Freewheel (nframes)) {
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cerr << "Freewheeling returned non-zero!\n";
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_freewheeling = false;
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jack_set_freewheel (_jack, false);
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}
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return 0;
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}
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session->process (nframes);
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if (!_running) {
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/* we were zombified, maybe because a ladspa plugin took
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too long, or jackd exited, or something like that.
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*/
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_processed_frames = next_processed_frames;
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return 0;
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}
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if (last_monitor_check + monitor_check_interval < next_processed_frames) {
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boost::shared_ptr<Ports> p = ports.reader();
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for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
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Port *port = (*i);
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bool x;
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if (port->_last_monitor != (x = port->monitoring_input ())) {
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port->_last_monitor = x;
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/* XXX I think this is dangerous, due to
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a likely mutex in the signal handlers ...
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*/
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port->MonitorInputChanged (x); /* EMIT SIGNAL */
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}
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}
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last_monitor_check = next_processed_frames;
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}
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if (session->silent()) {
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boost::shared_ptr<Ports> p = ports.reader();
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for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
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Port *port = (*i);
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if (port->sends_output()) {
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Sample *buf = port->get_buffer(nframes);
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memset (buf, 0, sizeof(Sample) * nframes);
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// this should work but doesn't
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//port->silence(0, nframes); //need to implement declicking fade
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}
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}
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}
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_processed_frames = next_processed_frames;
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return 0;
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}
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int
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AudioEngine::_sample_rate_callback (nframes_t nframes, void *arg)
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{
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return static_cast<AudioEngine *> (arg)->jack_sample_rate_callback (nframes);
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}
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int
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AudioEngine::jack_sample_rate_callback (nframes_t nframes)
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{
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_frame_rate = nframes;
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_usecs_per_cycle = (int) floor ((((double) frames_per_cycle() / nframes)) * 1000000.0);
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/* check for monitor input change every 1/10th of second */
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monitor_check_interval = nframes / 10;
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last_monitor_check = 0;
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if (session) {
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session->set_frame_rate (nframes);
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}
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SampleRateChanged (nframes); /* EMIT SIGNAL */
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return 0;
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}
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int
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AudioEngine::_bufsize_callback (nframes_t nframes, void *arg)
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{
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return static_cast<AudioEngine *> (arg)->jack_bufsize_callback (nframes);
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}
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int
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AudioEngine::jack_bufsize_callback (nframes_t nframes)
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{
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_buffer_size = nframes;
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_usecs_per_cycle = (int) floor ((((double) nframes / frame_rate())) * 1000000.0);
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last_monitor_check = 0;
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boost::shared_ptr<Ports> p = ports.reader();
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for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
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(*i)->reset();
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}
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if (session) {
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session->set_block_size (_buffer_size);
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}
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return 0;
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}
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void
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AudioEngine::stop_metering_thread ()
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{
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if (m_meter_thread) {
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g_atomic_int_set (&m_meter_exit, 1);
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m_meter_thread->join ();
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m_meter_thread = 0;
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}
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}
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void
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AudioEngine::start_metering_thread ()
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{
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if (m_meter_thread == 0) {
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g_atomic_int_set (&m_meter_exit, 0);
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m_meter_thread = Glib::Thread::create (sigc::mem_fun(this, &AudioEngine::meter_thread),
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500000, true, true, Glib::THREAD_PRIORITY_NORMAL);
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}
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}
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void
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AudioEngine::meter_thread ()
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{
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while (true) {
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Glib::usleep (10000); /* 1/100th sec interval */
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if (g_atomic_int_get(&m_meter_exit)) {
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break;
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}
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IO::update_meters ();
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}
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}
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void
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AudioEngine::set_session (Session *s)
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{
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Glib::Mutex::Lock pl (_process_lock);
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if (!session) {
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session = s;
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nframes_t blocksize = jack_get_buffer_size (_jack);
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/* page in as much of the session process code as we
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can before we really start running.
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*/
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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session->process (blocksize);
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}
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}
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void
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AudioEngine::remove_session ()
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{
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Glib::Mutex::Lock lm (_process_lock);
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if (_running) {
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if (session) {
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session_remove_pending = true;
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session_removed.wait(_process_lock);
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}
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} else {
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session = 0;
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}
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remove_all_ports ();
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}
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void
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AudioEngine::port_registration_failure (const std::string& portname)
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{
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string full_portname = jack_client_name;
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full_portname += ':';
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full_portname += portname;
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jack_port_t* p = jack_port_by_name (_jack, full_portname.c_str());
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string reason;
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if (p) {
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reason = _("a port with this name already exists: check for duplicated track/bus names");
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} else {
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reason = _("unknown error");
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}
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throw PortRegistrationFailure (string_compose (_("AudioEngine: cannot register port \"%1\": %2"), portname, reason).c_str());
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}
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Port *
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AudioEngine::register_input_port (DataType type, const string& portname)
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{
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if (!_running) {
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if (!_has_run) {
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fatal << _("register input port called before engine was started") << endmsg;
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/*NOTREACHED*/
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} else {
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return 0;
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}
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}
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jack_port_t *p = jack_port_register (_jack, portname.c_str(), type.to_jack_type(), JackPortIsInput, 0);
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if (p) {
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Port *newport;
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if ((newport = new Port (p)) != 0) {
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RCUWriter<Ports> writer (ports);
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boost::shared_ptr<Ports> ps = writer.get_copy ();
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ps->insert (ps->begin(), newport);
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/* writer goes out of scope, forces update */
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}
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return newport;
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} else {
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port_registration_failure (portname);
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}
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return 0;
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}
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Port *
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AudioEngine::register_output_port (DataType type, const string& portname)
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{
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if (!_running) {
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if (!_has_run) {
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fatal << _("register output port called before engine was started") << endmsg;
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/*NOTREACHED*/
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} else {
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return 0;
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}
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}
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jack_port_t *p;
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if ((p = jack_port_register (_jack, portname.c_str(),
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type.to_jack_type(), JackPortIsOutput, 0)) != 0) {
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Port *newport = 0;
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{
|
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RCUWriter<Ports> writer (ports);
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boost::shared_ptr<Ports> ps = writer.get_copy ();
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newport = new Port (p);
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ps->insert (ps->begin(), newport);
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/* writer goes out of scope, forces update */
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}
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return newport;
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} else {
|
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port_registration_failure (portname);
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}
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return 0;
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}
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int
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AudioEngine::unregister_port (Port *port)
|
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{
|
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if (!_running) {
|
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/* probably happening when the engine has been halted by JACK,
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in which case, there is nothing we can do here.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
if (port) {
|
|
|
|
int ret = jack_port_unregister (_jack, port->_port);
|
|
|
|
if (ret == 0) {
|
|
|
|
{
|
|
|
|
RCUWriter<Ports> writer (ports);
|
|
boost::shared_ptr<Ports> ps = writer.get_copy ();
|
|
|
|
for (Ports::iterator i = ps->begin(); i != ps->end(); ++i) {
|
|
if ((*i) == port) {
|
|
ps->erase (i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* writer goes out of scope, forces update */
|
|
}
|
|
|
|
remove_connections_for (port);
|
|
}
|
|
|
|
return ret;
|
|
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int
|
|
AudioEngine::connect (const string& source, const string& destination)
|
|
{
|
|
if (!_running) {
|
|
if (!_has_run) {
|
|
fatal << _("connect called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
string s = make_port_name_non_relative (source);
|
|
string d = make_port_name_non_relative (destination);
|
|
|
|
int ret = jack_connect (_jack, s.c_str(), d.c_str());
|
|
|
|
if (ret == 0) {
|
|
pair<string,string> c (s, d);
|
|
port_connections.push_back (c);
|
|
} else if (ret == EEXIST) {
|
|
error << string_compose(_("AudioEngine: connection already exists: %1 (%2) to %3 (%4)"),
|
|
source, s, destination, d)
|
|
<< endmsg;
|
|
} else {
|
|
error << string_compose(_("AudioEngine: cannot connect %1 (%2) to %3 (%4)"),
|
|
source, s, destination, d)
|
|
<< endmsg;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
AudioEngine::disconnect (const string& source, const string& destination)
|
|
{
|
|
if (!_running) {
|
|
if (!_has_run) {
|
|
fatal << _("disconnect called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
string s = make_port_name_non_relative (source);
|
|
string d = make_port_name_non_relative (destination);
|
|
|
|
int ret = jack_disconnect (_jack, s.c_str(), d.c_str());
|
|
|
|
if (ret == 0) {
|
|
pair<string,string> c (s, d);
|
|
PortConnections::iterator i;
|
|
|
|
if ((i = find (port_connections.begin(), port_connections.end(), c)) != port_connections.end()) {
|
|
port_connections.erase (i);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
AudioEngine::disconnect (Port *port)
|
|
{
|
|
if (!_running) {
|
|
if (!_has_run) {
|
|
fatal << _("disconnect called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int ret = jack_port_disconnect (_jack, port->_port);
|
|
|
|
if (ret == 0) {
|
|
remove_connections_for (port);
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
nframes_t
|
|
AudioEngine::frame_rate ()
|
|
{
|
|
if (_jack) {
|
|
if (_frame_rate == 0) {
|
|
return (_frame_rate = jack_get_sample_rate (_jack));
|
|
} else {
|
|
return _frame_rate;
|
|
}
|
|
} else {
|
|
fatal << X_("programming error: AudioEngine::frame_rate() called while disconnected from JACK")
|
|
<< endmsg;
|
|
/*NOTREACHED*/
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
nframes_t
|
|
AudioEngine::frames_per_cycle ()
|
|
{
|
|
if (_jack) {
|
|
if (_buffer_size == 0) {
|
|
return (_buffer_size = jack_get_buffer_size (_jack));
|
|
} else {
|
|
return _buffer_size;
|
|
}
|
|
} else {
|
|
fatal << X_("programming error: AudioEngine::frame_rate() called while disconnected from JACK")
|
|
<< endmsg;
|
|
/*NOTREACHED*/
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
Port *
|
|
AudioEngine::get_port_by_name (const string& portname, bool keep)
|
|
{
|
|
Glib::Mutex::Lock lm (_process_lock);
|
|
|
|
if (!_running) {
|
|
if (!_has_run) {
|
|
fatal << _("get_port_by_name() called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* check to see if we have a Port for this name already */
|
|
|
|
boost::shared_ptr<Ports> pr = ports.reader();
|
|
|
|
for (Ports::iterator i = pr->begin(); i != pr->end(); ++i) {
|
|
if (portname == (*i)->name()) {
|
|
return (*i);
|
|
}
|
|
}
|
|
|
|
jack_port_t *p;
|
|
|
|
if ((p = jack_port_by_name (_jack, portname.c_str())) != 0) {
|
|
Port *newport = new Port (p);
|
|
|
|
{
|
|
if (keep && newport->is_mine (_jack)) {
|
|
RCUWriter<Ports> writer (ports);
|
|
boost::shared_ptr<Ports> ps = writer.get_copy ();
|
|
ps->insert (newport);
|
|
/* writer goes out of scope, forces update */
|
|
}
|
|
}
|
|
|
|
return newport;
|
|
|
|
} else {
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
const char **
|
|
AudioEngine::get_ports (const string& port_name_pattern, const string& type_name_pattern, uint32_t flags)
|
|
{
|
|
if (!_running) {
|
|
if (!_has_run) {
|
|
fatal << _("get_ports called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
return jack_get_ports (_jack, port_name_pattern.c_str(), type_name_pattern.c_str(), flags);
|
|
}
|
|
|
|
void
|
|
AudioEngine::halted (void *arg)
|
|
{
|
|
AudioEngine* ae = static_cast<AudioEngine *> (arg);
|
|
bool was_running = ae->_running;
|
|
|
|
ae->stop_metering_thread ();
|
|
|
|
ae->_running = false;
|
|
ae->_buffer_size = 0;
|
|
ae->_frame_rate = 0;
|
|
ae->_jack = 0;
|
|
|
|
if (was_running) {
|
|
ae->Halted(); /* EMIT SIGNAL */
|
|
}
|
|
}
|
|
|
|
bool
|
|
AudioEngine::can_request_hardware_monitoring ()
|
|
{
|
|
const char ** ports;
|
|
|
|
if (!_jack) {
|
|
return 0;
|
|
}
|
|
|
|
if ((ports = jack_get_ports (_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortCanMonitor)) == 0) {
|
|
return false;
|
|
}
|
|
|
|
free (ports);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
AudioEngine::n_physical_audio_outputs () const
|
|
{
|
|
const char ** ports;
|
|
uint32_t i = 0;
|
|
|
|
if (!_jack) {
|
|
return 0;
|
|
}
|
|
|
|
if ((ports = jack_get_ports (_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|JackPortIsInput)) == 0) {
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; ports[i]; ++i);
|
|
free (ports);
|
|
|
|
return i;
|
|
}
|
|
|
|
uint32_t
|
|
AudioEngine::n_physical_audio_inputs () const
|
|
{
|
|
const char ** ports;
|
|
uint32_t i = 0;
|
|
|
|
if (!_jack) {
|
|
return 0;
|
|
}
|
|
|
|
if ((ports = jack_get_ports (_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|JackPortIsOutput)) == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if (ports) {
|
|
for (i = 0; ports[i]; ++i);
|
|
free (ports);
|
|
}
|
|
return i;
|
|
}
|
|
|
|
void
|
|
AudioEngine::get_physical_audio_inputs (vector<string>& ins)
|
|
{
|
|
const char ** ports;
|
|
uint32_t i = 0;
|
|
|
|
if (!_jack) {
|
|
return;
|
|
}
|
|
|
|
if ((ports = jack_get_ports (_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|JackPortIsOutput)) == 0) {
|
|
return;
|
|
}
|
|
|
|
if (ports) {
|
|
for (i = 0; ports[i]; ++i) {
|
|
ins.push_back (ports[i]);
|
|
}
|
|
free (ports);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioEngine::get_physical_audio_outputs (vector<string>& outs)
|
|
{
|
|
const char ** ports;
|
|
uint32_t i = 0;
|
|
|
|
if (!_jack) {
|
|
return;
|
|
}
|
|
|
|
if ((ports = jack_get_ports (_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|JackPortIsInput)) == 0) {
|
|
return;
|
|
}
|
|
|
|
if (ports) {
|
|
for (i = 0; ports[i]; ++i) {
|
|
outs.push_back (ports[i]);
|
|
}
|
|
free (ports);
|
|
}
|
|
}
|
|
|
|
string
|
|
AudioEngine::get_nth_physical_audio (uint32_t n, int flag)
|
|
{
|
|
const char ** ports;
|
|
uint32_t i;
|
|
string ret;
|
|
|
|
if (!_running || !_jack) {
|
|
if (!_has_run) {
|
|
fatal << _("get_nth_physical called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
} else {
|
|
return "";
|
|
}
|
|
}
|
|
|
|
ports = jack_get_ports (_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|flag);
|
|
|
|
if (ports == 0) {
|
|
return "";
|
|
}
|
|
|
|
for (i = 0; i < n && ports[i]; ++i);
|
|
|
|
if (ports[i]) {
|
|
ret = ports[i];
|
|
}
|
|
|
|
free ((char *) ports);
|
|
|
|
return ret;
|
|
}
|
|
|
|
nframes_t
|
|
AudioEngine::get_port_total_latency (const Port& port)
|
|
{
|
|
if (!_jack) {
|
|
fatal << _("get_port_total_latency() called with no JACK client connection") << endmsg;
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
if (!_running) {
|
|
if (!_has_run) {
|
|
fatal << _("get_port_total_latency() called before engine was started") << endmsg;
|
|
/*NOTREACHED*/
|
|
}
|
|
}
|
|
|
|
return jack_port_get_total_latency (_jack, port._port);
|
|
}
|
|
|
|
void
|
|
AudioEngine::transport_stop ()
|
|
{
|
|
// cerr << "tell JACK to stop\n";
|
|
if (_jack) {
|
|
jack_transport_stop (_jack);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioEngine::transport_start ()
|
|
{
|
|
// cerr << "tell JACK to start\n";
|
|
if (_jack) {
|
|
jack_transport_start (_jack);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioEngine::transport_locate (nframes_t where)
|
|
{
|
|
// cerr << "tell JACK to locate to " << where << endl;
|
|
if (_jack) {
|
|
jack_transport_locate (_jack, where);
|
|
}
|
|
}
|
|
|
|
AudioEngine::TransportState
|
|
AudioEngine::transport_state ()
|
|
{
|
|
if (_jack) {
|
|
jack_position_t pos;
|
|
return (TransportState) jack_transport_query (_jack, &pos);
|
|
} else {
|
|
return (TransportState) JackTransportStopped;
|
|
}
|
|
}
|
|
|
|
int
|
|
AudioEngine::reset_timebase ()
|
|
{
|
|
if (_jack) {
|
|
if (Config->get_jack_time_master()) {
|
|
return jack_set_timebase_callback (_jack, 0, _jack_timebase_callback, this);
|
|
} else {
|
|
return jack_release_timebase (_jack);
|
|
}
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int
|
|
AudioEngine::freewheel (bool onoff)
|
|
{
|
|
if (_jack) {
|
|
|
|
if (onoff) {
|
|
_freewheel_thread_registered = false;
|
|
}
|
|
|
|
return jack_set_freewheel (_jack, onoff);
|
|
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioEngine::remove_all_ports ()
|
|
{
|
|
/* process lock MUST be held */
|
|
|
|
if (_jack) {
|
|
boost::shared_ptr<Ports> p = ports.reader();
|
|
|
|
for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
|
|
jack_port_unregister (_jack, (*i)->_port);
|
|
}
|
|
}
|
|
|
|
{
|
|
RCUWriter<Ports> writer (ports);
|
|
boost::shared_ptr<Ports> ps = writer.get_copy ();
|
|
ps->clear ();
|
|
}
|
|
|
|
port_connections.clear ();
|
|
}
|
|
|
|
void
|
|
AudioEngine::remove_connections_for (Port* port)
|
|
{
|
|
for (PortConnections::iterator i = port_connections.begin(); i != port_connections.end(); ) {
|
|
PortConnections::iterator tmp;
|
|
|
|
tmp = i;
|
|
++tmp;
|
|
|
|
if ((*i).first == port->name()) {
|
|
port_connections.erase (i);
|
|
}
|
|
|
|
i = tmp;
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_JACK_CLIENT_OPEN
|
|
|
|
int
|
|
AudioEngine::connect_to_jack (string client_name)
|
|
{
|
|
jack_options_t options = JackNullOption;
|
|
jack_status_t status;
|
|
const char *server_name = NULL;
|
|
|
|
jack_client_name = client_name; /* might be reset below */
|
|
_jack = jack_client_open (jack_client_name.c_str(), options, &status, server_name);
|
|
|
|
if (_jack == NULL) {
|
|
/* just return without an error message. something else will take care of it */
|
|
return -1;
|
|
}
|
|
|
|
if (status & JackNameNotUnique) {
|
|
jack_client_name = jack_get_client_name (_jack);
|
|
}
|
|
|
|
jack_set_error_function (ardour_jack_error);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
int
|
|
AudioEngine::connect_to_jack (string client_name)
|
|
{
|
|
jack_client_name = client_name;
|
|
|
|
if ((_jack = jack_client_new (client_name.c_str())) == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_JACK_CLIENT_OPEN */
|
|
|
|
int
|
|
AudioEngine::disconnect_from_jack ()
|
|
{
|
|
if (_jack == 0) {
|
|
return 0;
|
|
}
|
|
|
|
jack_client_close (_jack);
|
|
|
|
_buffer_size = 0;
|
|
_frame_rate = 0;
|
|
|
|
if (_running) {
|
|
stop_metering_thread ();
|
|
_running = false;
|
|
Stopped(); /* EMIT SIGNAL */
|
|
}
|
|
|
|
_jack = 0;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
AudioEngine::reconnect_to_jack ()
|
|
{
|
|
if (_jack) {
|
|
disconnect_from_jack ();
|
|
/* XXX give jackd a chance */
|
|
Glib::usleep (250000);
|
|
}
|
|
|
|
if (connect_to_jack (jack_client_name)) {
|
|
error << _("failed to connect to JACK") << endmsg;
|
|
return -1;
|
|
}
|
|
|
|
Ports::iterator i;
|
|
|
|
boost::shared_ptr<Ports> p = ports.reader ();
|
|
|
|
for (i = p->begin(); i != p->end(); ++i) {
|
|
|
|
/* XXX hack hack hack */
|
|
|
|
string long_name = (*i)->name();
|
|
string short_name;
|
|
|
|
short_name = long_name.substr (long_name.find_last_of (':') + 1);
|
|
|
|
if (((*i)->_port = jack_port_register (_jack, short_name.c_str(), (*i)->type(), (*i)->flags(), 0)) == 0) {
|
|
error << string_compose (_("could not reregister %1"), (*i)->name()) << endmsg;
|
|
break;
|
|
} else {
|
|
}
|
|
|
|
(*i)->reset ();
|
|
|
|
if ((*i)->flags() & JackPortIsOutput) {
|
|
(*i)->silence (jack_get_buffer_size (_jack), 0);
|
|
}
|
|
}
|
|
|
|
if (i != p->end()) {
|
|
/* failed */
|
|
for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
|
|
jack_port_unregister (_jack, (*i)->_port);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
if (session) {
|
|
session->reset_jack_connection (_jack);
|
|
nframes_t blocksize = jack_get_buffer_size (_jack);
|
|
session->set_block_size (blocksize);
|
|
session->set_frame_rate (jack_get_sample_rate (_jack));
|
|
}
|
|
|
|
last_monitor_check = 0;
|
|
|
|
jack_on_shutdown (_jack, halted, this);
|
|
jack_set_graph_order_callback (_jack, _graph_order_callback, this);
|
|
jack_set_thread_init_callback (_jack, _thread_init_callback, this);
|
|
jack_set_process_callback (_jack, _process_callback, this);
|
|
jack_set_sample_rate_callback (_jack, _sample_rate_callback, this);
|
|
jack_set_buffer_size_callback (_jack, _bufsize_callback, this);
|
|
jack_set_xrun_callback (_jack, _xrun_callback, this);
|
|
jack_set_sync_callback (_jack, _jack_sync_callback, this);
|
|
jack_set_freewheel_callback (_jack, _freewheel_callback, this);
|
|
|
|
if (Config->get_jack_time_master()) {
|
|
jack_set_timebase_callback (_jack, 0, _jack_timebase_callback, this);
|
|
}
|
|
|
|
if (jack_activate (_jack) == 0) {
|
|
_running = true;
|
|
_has_run = true;
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
/* re-establish connections */
|
|
|
|
for (PortConnections::iterator i = port_connections.begin(); i != port_connections.end(); ++i) {
|
|
|
|
int err;
|
|
|
|
if ((err = jack_connect (_jack, (*i).first.c_str(), (*i).second.c_str())) != 0) {
|
|
if (err != EEXIST) {
|
|
error << string_compose (_("could not reconnect %1 and %2 (err = %3)"),
|
|
(*i).first, (*i).second, err)
|
|
<< endmsg;
|
|
}
|
|
}
|
|
}
|
|
|
|
Running (); /* EMIT SIGNAL*/
|
|
|
|
start_metering_thread ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
AudioEngine::request_buffer_size (nframes_t nframes)
|
|
{
|
|
if (_jack) {
|
|
|
|
if (nframes == jack_get_buffer_size (_jack)) {
|
|
return 0;
|
|
}
|
|
|
|
return jack_set_buffer_size (_jack, nframes);
|
|
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioEngine::update_total_latencies ()
|
|
{
|
|
#ifdef HAVE_JACK_RECOMPUTE_LATENCIES
|
|
jack_recompute_total_latencies (_jack);
|
|
#endif
|
|
}
|
|
|
|
string
|
|
AudioEngine::make_port_name_relative (string portname)
|
|
{
|
|
string::size_type len;
|
|
string::size_type n;
|
|
|
|
len = portname.length();
|
|
|
|
for (n = 0; n < len; ++n) {
|
|
if (portname[n] == ':') {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((n != len) && (portname.substr (0, n) == jack_client_name)) {
|
|
return portname.substr (n+1);
|
|
}
|
|
|
|
return portname;
|
|
}
|
|
|
|
string
|
|
AudioEngine::make_port_name_non_relative (string portname)
|
|
{
|
|
string str;
|
|
|
|
if (portname.find_first_of (':') != string::npos) {
|
|
return portname;
|
|
}
|
|
|
|
str = jack_client_name;
|
|
str += ':';
|
|
str += portname;
|
|
|
|
return str;
|
|
}
|
|
|
|
bool
|
|
AudioEngine::is_realtime () const
|
|
{
|
|
if (_jack) {
|
|
return jack_is_realtime (_jack);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|