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/*
* Copyright (C) 2009, 2010 Hermann Meyer, James Warden, Andreas Degert
* Copyright (C) 2011 Pete Shorthose
*
* 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.
* --------------------------------------------------------------------------
*/
/* ------- This is the JACK namespace ------- */
#pragma once
#ifndef SRC_HEADERS_GX_JACK_H_
#define SRC_HEADERS_GX_JACK_H_
#include <jack/jack.h> // NOLINT
#include <jack/midiport.h>
#include <jack/ringbuffer.h>
#ifdef HAVE_JACK_SESSION
#include <jack/session.h>
#endif
namespace gx_jack {
/****************************************************************
** port connection callback
*/
struct PortConnData {
public:
PortConnData() {} // no init
PortConnData(const char *a, const char *b, bool conn)
: name_a(a), name_b(b), connect(conn) {}
~PortConnData() {}
const char *name_a;
const char *name_b;
bool connect;
};
class PortConnRing {
private:
jack_ringbuffer_t *ring;
bool send_changes;
int overflow; // should be bool but gives compiler error
void set_overflow() { gx_system::atomic_set(&overflow, true); }
void clear_overflow() { gx_system::atomic_set(&overflow, false); }
bool is_overflow() { return gx_system::atomic_get(overflow); }
public:
Glib::Dispatcher new_data;
Glib::Dispatcher portchange;
void push(const char *a, const char *b, bool conn);
bool pop(PortConnData*);
void set_send(bool v) { send_changes = v; }
PortConnRing();
~PortConnRing();
};
/****************************************************************
** class GxJack
*/
class PortConnection {
public:
jack_port_t *port;
list<string> conn;
};
class JackPorts {
public:
PortConnection input;
PortConnection midi_input;
PortConnection insert_out;
PortConnection midi_output;
PortConnection insert_in;
PortConnection output1;
PortConnection output2;
};
#ifdef HAVE_JACK_SESSION
extern "C" {
typedef int (*jack_set_session_callback_type)(
jack_client_t *, JackSessionCallback, void *arg);
typedef char *(*jack_get_uuid_for_client_name_type)(
jack_client_t *, const char *);
typedef char *(*jack_client_get_uuid_type)(jack_client_t *);
}
#endif
struct midi_cc {
bool send_cc[5];
int cc_num[5];
int pg_num[5];
int bg_num[5];
int me_num[5];
};
class GxJack: public sigc::trackable {
private:
gx_engine::GxEngine& engine;
bool jack_is_down;
bool jack_is_exit;
bool bypass_insert;
midi_cc mmessage;
static int gx_jack_srate_callback(jack_nframes_t, void* arg);
static int gx_jack_xrun_callback(void* arg);
static int gx_jack_buffersize_callback(jack_nframes_t, void* arg);
static int gx_jack_process(jack_nframes_t, void* arg);
static int gx_jack_insert_process(jack_nframes_t, void* arg);
static void shutdown_callback_client(void* arg);
static void shutdown_callback_client_insert(void* arg);
void gx_jack_shutdown_callback();
static void gx_jack_portreg_callback(jack_port_id_t, int, void* arg);
static void gx_jack_portconn_callback(jack_port_id_t a, jack_port_id_t b, int connect, void* arg);
#ifdef HAVE_JACK_SESSION
jack_session_event_t *session_event;
jack_session_event_t *session_event_ins;
int session_callback_seen;
static void gx_jack_session_callback(jack_session_event_t *event, void *arg);
static void gx_jack_session_callback_ins(jack_session_event_t *event, void *arg);
static jack_set_session_callback_type jack_set_session_callback_fp;
static jack_get_uuid_for_client_name_type jack_get_uuid_for_client_name_fp;
static jack_client_get_uuid_type jack_client_get_uuid_fp;
#endif
void cleanup_slot(bool otherthread);
void fetch_connection_data();
PortConnRing connection_queue;
sigc::signal<void,string,string,bool> connection_changed;
Glib::Dispatcher buffersize_change;
Glib::Dispatcher client_change_rt;
sigc::signal<void> client_change;
string client_instance;
jack_nframes_t jack_sr; // jack sample rate
jack_nframes_t jack_bs; // jack buffer size
float *insert_buffer;
Glib::Dispatcher xrun;
float last_xrun;
bool xrun_msg_blocked;
void report_xrun_clear();
void report_xrun();
void write_jack_port_connections(
gx_system::JsonWriter& w, const char *key, const PortConnection& pc, bool replace=false);
std::string make_clientvar(const std::string& s);
std::string replace_clientvar(const std::string& s);
int is_power_of_two (unsigned int x);
bool gx_jack_init(bool startserver, int wait_after_connect,
const gx_system::CmdlineOptions& opt);
void gx_jack_init_port_connection(const gx_system::CmdlineOptions& opt);
void gx_jack_callbacks();
void gx_jack_cleanup();
inline void check_overload();
public:
JackPorts ports;
jack_client_t* client;
jack_client_t* client_insert;
jack_position_t current;
jack_transport_state_t transport_state;
jack_transport_state_t old_transport_state;
jack_nframes_t get_jack_sr() { return jack_sr; }
jack_nframes_t get_jack_bs() { return jack_bs; }
float get_jcpu_load() { return client ? jack_cpu_load(client) : -1; }
bool get_is_rt() { return client ? jack_is_realtime(client) : false; }
jack_nframes_t get_time_is() { return client ? jack_frame_time(client) : 0; }
public:
GxJack(gx_engine::GxEngine& engine_);
~GxJack();
void set_jack_down(bool v) { jack_is_down = v; }
void set_jack_exit(bool v) { jack_is_exit = v; }
void set_jack_insert(bool v) { bypass_insert = v;}
bool gx_jack_connection(bool connect, bool startserver,
int wait_after_connect, const gx_system::CmdlineOptions& opt);
float get_last_xrun() { return last_xrun; }
void* get_midi_buffer(jack_nframes_t nframes);
void send_midi_cc(int cc_num, int pgm_num, int bgn, int num);
void process_midi_cc(void *buf, jack_nframes_t nframes);
void read_connections(gx_system::JsonParser& jp);
void write_connections(gx_system::JsonWriter& w);
static string get_default_instancename();
const string& get_instancename() { return client_instance; }
string client_name;
string client_insert_name;
Glib::Dispatcher session;
Glib::Dispatcher session_ins;
Glib::Dispatcher shutdown;
bool is_jack_down() { return jack_is_down; }
Glib::Dispatcher connection;
bool is_jack_exit() { return jack_is_exit; }
sigc::signal<void>& signal_client_change() { return client_change; }
sigc::signal<void,string,string,bool>& signal_connection_changed() { return connection_changed; }
Glib::Dispatcher& signal_portchange() { return connection_queue.portchange; }
Glib::Dispatcher& signal_buffersize_change() { return buffersize_change; }
void send_connection_changes(bool v) { connection_queue.set_send(v); }
static void rt_watchdog_set_limit(int limit);
#ifdef HAVE_JACK_SESSION
jack_session_event_t *get_last_session_event() {
return gx_system::atomic_get(session_event);
}
jack_session_event_t *get_last_session_event_ins() {
return gx_system::atomic_get(session_event_ins);
}
int return_last_session_event();
int return_last_session_event_ins();
string get_uuid_insert();
gx_engine::GxEngine& get_engine() { return engine; }
#endif
};
} /* end of jack namespace */
#endif // SRC_HEADERS_GX_JACK_H_
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