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