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livetrax/libs/surfaces/mackie/mackie_control_protocol.h

291 lines
9.5 KiB
C++

/*
Copyright (C) 2006,2007 John Anderson
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_mackie_control_protocol_h
#define ardour_mackie_control_protocol_h
#include <vector>
#include <sys/time.h>
#include <pthread.h>
#include <glibmm/thread.h>
#include <ardour/types.h>
#include <ardour/session.h>
#include <midi++/types.h>
#include <control_protocol/control_protocol.h>
#include "midi_byte_array.h"
#include "controls.h"
#include "route_signal.h"
#include "mackie_button_handler.h"
#include "mackie_port.h"
namespace MIDI {
class Port;
class Parser;
}
namespace Mackie {
class Surface;
}
/**
This handles the plugin duties, and the midi encoding and decoding,
and the signal callbacks, mostly from ARDOUR::Route.
The model of the control surface is handled by classes in controls.h
What happens is that each strip on the control surface has
a corresponding route in ControlProtocol::route_table. When
an incoming midi message is signaled, the correct route
is looked up, and the relevant changes made to it.
For each route currently in route_table, there's a RouteSignal object
which encapsulates the signals that indicate that there are changes
to be sent to the surface. The signals are handled by this class.
Calls to signal handlers pass a Route object which is used to look
up the relevant Strip in Surface. Then the state is retrieved from
the Route and encoded as the correct midi message.
*/
class MackieControlProtocol
: public ARDOUR::ControlProtocol
, public Mackie::MackieButtonHandler
{
public:
MackieControlProtocol( ARDOUR::Session & );
virtual ~MackieControlProtocol();
int set_active (bool yn);
XMLNode& get_state ();
int set_state (const XMLNode&);
static bool probe();
Mackie::Surface & surface();
// control events
void handle_control_event( Mackie::SurfacePort & port, Mackie::Control & control, const Mackie::ControlState & state );
// strip/route related stuff
public:
/// Signal handler for Route::solo
void notify_solo_changed( ARDOUR::Route *, Mackie::MackiePort * );
/// Signal handler for Route::mute
void notify_mute_changed( ARDOUR::Route *, Mackie::MackiePort * );
/// Signal handler for Route::record_enable_changed
void notify_record_enable_changed( ARDOUR::Route *, Mackie::MackiePort * );
/// Signal handler for Route::gain_changed ( from IO )
void notify_gain_changed( ARDOUR::Route *, Mackie::MackiePort * );
/// Signal handler for Route::name_change
void notify_name_changed( void *, ARDOUR::Route *, Mackie::MackiePort * );
/// Signal handler from Panner::Change
void notify_panner_changed( ARDOUR::Route *, Mackie::MackiePort * );
/// Signal handler for new routes added
void notify_route_added( ARDOUR::Session::RouteList & );
/// rebuild the current bank. Called on route added/removed and
/// remote id changed.
void refresh_current_bank();
// global buttons (ie button not part of strips)
public:
// button-related signals
void notify_record_state_changed();
void notify_transport_state_changed();
// mainly to pick up punch-in and punch-out
void notify_parameter_changed( const char * );
void notify_solo_active_changed( bool );
// this is called to generate the midi to send in response to
// a button press.
void update_led( Mackie::Button & button, Mackie::LedState );
// calls update_led, but looks up the button by name
void update_global_button( const std::string & name, Mackie::LedState );
// transport button handler methods from MackieButtonHandler
virtual Mackie::LedState rewind_press( Mackie::Button & );
virtual Mackie::LedState rewind_release( Mackie::Button & );
virtual Mackie::LedState ffwd_press( Mackie::Button & );
virtual Mackie::LedState ffwd_release( Mackie::Button & );
virtual Mackie::LedState stop_press( Mackie::Button & );
virtual Mackie::LedState stop_release( Mackie::Button & );
virtual Mackie::LedState play_press( Mackie::Button & );
virtual Mackie::LedState play_release( Mackie::Button & );
virtual Mackie::LedState record_press( Mackie::Button & );
virtual Mackie::LedState record_release( Mackie::Button & );
virtual Mackie::LedState loop_press( Mackie::Button & );
virtual Mackie::LedState loop_release( Mackie::Button & );
virtual Mackie::LedState punch_in_press( Mackie::Button & );
virtual Mackie::LedState punch_in_release( Mackie::Button & );
virtual Mackie::LedState punch_out_press( Mackie::Button & );
virtual Mackie::LedState punch_out_release( Mackie::Button & );
virtual Mackie::LedState home_press( Mackie::Button & );
virtual Mackie::LedState home_release( Mackie::Button & );
virtual Mackie::LedState end_press( Mackie::Button & );
virtual Mackie::LedState end_release( Mackie::Button & );
// bank switching button handler methods from MackieButtonHandler
virtual Mackie::LedState left_press( Mackie::Button & );
virtual Mackie::LedState left_release( Mackie::Button & );
virtual Mackie::LedState right_press( Mackie::Button & );
virtual Mackie::LedState right_release( Mackie::Button & );
virtual Mackie::LedState channel_left_press( Mackie::Button & );
virtual Mackie::LedState channel_left_release( Mackie::Button & );
virtual Mackie::LedState channel_right_press( Mackie::Button & );
virtual Mackie::LedState channel_right_release( Mackie::Button & );
protected:
// create instances of MackiePort, depending on what's found in ardour.rc
void create_ports();
// shut down the surface
void close();
// create the Surface object, with the correct number
// of strips for the currently connected ports and
// hook up the control event notification
void initialize_surface();
// This sets up the notifications and sets the
// controls to the correct values
void update_surface();
// connects global (not strip) signals from the Session to here
// so the surface can be notified of changes from the other UIs.
void connect_session_signals();
// set all controls to their zero position
void zero_all();
/**
Fetch the set of routes to be considered for control by the
surface. Excluding master, hidden and control routes, and inactive routes
*/
typedef std::vector<boost::shared_ptr<ARDOUR::Route> > Sorted;
Sorted get_sorted_routes();
// bank switching
void switch_banks( int initial );
void prev_track();
void next_track();
// delete all RouteSignal objects connecting Routes to Strips
void clear_route_signals();
/// This is the main MCU port, ie not an extender port
const Mackie::MackiePort & mcu_port() const;
Mackie::MackiePort & mcu_port();
typedef std::vector<Mackie::RouteSignal*> RouteSignals;
RouteSignals route_signals;
// return which of the ports a particular route_table
// index belongs to
Mackie::MackiePort & port_for_id( uint32_t index );
/**
Handle a button press for the control and return whether
the corresponding light should be on or off.
*/
bool handle_strip_button( Mackie::Control &, Mackie::ButtonState, boost::shared_ptr<ARDOUR::Route> );
// Polling midi port(s) for incoming messages
static void* _monitor_work (void* arg);
void* monitor_work ();
/// rebuild the set of ports for this surface
void update_ports();
/// Returns true if there is pending data, false otherwise
bool poll_ports();
/// Trigger the MIDI::Parser
void read_ports();
void add_port( MIDI::Port &, int number );
/**
used by the notify_XXX methods to find
a strip corresponding to the Route passed in.
*/
Mackie::Strip & strip_from_route( ARDOUR::Route * route );
/// notification from the MackiePorts that their status has changed
void handle_port_changed( Mackie::SurfacePort *, bool active );
/**
notification that the port is about to start it's init sequence.
We must make sure that before this exits, the port is being polled
for new data.
*/
void handle_port_init( Mackie::SurfacePort * );
boost::shared_ptr<ARDOUR::Route> master_route();
Mackie::Strip & master_strip();
private:
boost::shared_ptr<Mackie::RouteSignal> master_route_signal;
static const char * default_port_name;
/// The Midi port(s) connected to the units
typedef vector<Mackie::MackiePort*> MackiePorts;
MackiePorts _ports;
// the thread that polls the ports for incoming midi data
pthread_t thread;
/// The initial remote_id of the currently switched in bank.
uint32_t _current_initial_bank;
/// protects the port list, and polling structures
Glib::Mutex update_mutex;
/// Protects set_active, and allows waiting on the poll thread
Glib::Cond update_cond;
// because sigc::trackable doesn't seem to be working
std::vector<sigc::connection> _connections;
std::back_insert_iterator<std::vector<sigc::connection> > connections_back;
/// The representation of the physical controls on the surface.
Mackie::Surface * _surface;
/// If a port is opened or closed, this will be
/// true until the port configuration is updated;
bool _ports_changed;
struct pollfd * pfd;
int nfds;
};
#endif // ardour_mackie_control_protocol_h