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/*
Copyright (C) 2013 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.
*/
#ifndef __ardour_jack_audiobackend_h__
#define __ardour_jack_audiobackend_h__
#include <string>
#include <vector>
#include <stdint.h>
#include "ardour/audio_backend.h"
namespace ARDOUR {
class JACKAudioBackend : public {
public:
JACKAudioBackend (AudioEngine& e);
~JACKAudioBackend ();
std::vector<std::string> enumerate_devices () const;
std::vector<float> available_sample_rates (const std::string& device) const;
std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
int set_parameters (const Parameters&);
int get_parameters (Parameters&) const;
int start ();
int stop ();
int pause ();
int freewheel ();
private:
jack_client_t* volatile _jack; /* could be reset to null by SIGPIPE or another thread */
std::string jack_client_name;
static int _xrun_callback (void *arg);
static int _graph_order_callback (void *arg);
static void* _process_thread (void *arg);
static int _sample_rate_callback (pframes_t nframes, void *arg);
static int _bufsize_callback (pframes_t nframes, void *arg);
static void _jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int, void*);
static int _jack_sync_callback (jack_transport_state_t, jack_position_t*, void *arg);
static void _freewheel_callback (int , void *arg);
static void _registration_callback (jack_port_id_t, int, void *);
static void _connect_callback (jack_port_id_t, jack_port_id_t, int, void *);
static void _latency_callback (jack_latency_callback_mode_t, void*);#
static void halted (void *);
static void halted_info (jack_status_t,const char*,void *);
ifdef HAVE_JACK_SESSION
static void _session_callback (jack_session_event_t *event, void *arg);
#endif
void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
int jack_sync_callback (jack_transport_state_t, jack_position_t*);
int jack_bufsize_callback (pframes_t);
int jack_sample_rate_callback (pframes_t);
void freewheel_callback (int);
void connect_callback (jack_port_id_t, jack_port_id_t, int);
int process_callback (pframes_t nframes);
void jack_latency_callback (jack_latency_callback_mode_t);
void set_jack_callbacks ();
int connect_to_jack (std::string client_name, std::string session_uuid);
struct ThreadData {
JACKAudioBackend* engine;
boost::function<void()> f;
size_t stacksize;
ThreadData (JACKAudioBackend* e, boost::function<void()> fp, size_t stacksz)
: engine (e) , f (fp) , stacksize (stacksz) {}
};
void* process_thread ();
static void* _start_process_thread (void*);
ChanCount n_physical (unsigned long) const;
void get_physical (DataType, unsigned long, std::vector<std::string> &);
};
}
#endif /* __ardour_audiobackend_h__ */
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