basic skeleton for new MIDISurface base class

2025-12-28 17:37:41 +01:00 · 2022-10-14 13:10:24 -06:00 · 2022-10-14 13:10:24 -06:00 · 4fbf3028aa
commit 4fbf3028aa
parent 16ce8b3331
6 changed files with 749 additions and 9 deletions
--- a/libs/surfaces/midi_surface/midi_surface.h
+++ b/libs/surfaces/midi_surface/midi_surface.h
@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2022 Robin Gareus <robin@gareus.org>
+ *
+ * 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.
+ */
+
+#define ABSTRACT_UI_EXPORTS
+#include "pbd/abstract_ui.h"
+#include "control_protocol/control_protocol.h"
+#include "midi++/types.h"
+
+#include "midi_byte_array.h"
+
+namespace MIDI {
+	class Parser;
+	class Port;
+}
+
+namespace ARDOUR {
+	class Bundle;
+	class Port;
+	class MidiBuffer;
+}
+
+struct MidiSurfaceRequest : public BaseUI::BaseRequestObject {
+  public:
+	MidiSurfaceRequest () {}
+	~MidiSurfaceRequest () {}
+};
+
+class MIDISurface : public ARDOUR::ControlProtocol
+                  , public AbstractUI<MidiSurfaceRequest>
+{
+  public:
+	MIDISurface (ARDOUR::Session&, std::string const & name, bool use_pad_filter);
+	~MIDISurface ();
+
+	boost::shared_ptr<ARDOUR::Port> input_port();
+	boost::shared_ptr<ARDOUR::Port> output_port();
+
+	// Bundle to represent our input ports
+	boost::shared_ptr<ARDOUR::Bundle> _input_bundle;
+	// Bundle to represent our output ports
+	boost::shared_ptr<ARDOUR::Bundle> _output_bundle;
+
+	ARDOUR::Session & get_session() { return *session; }
+
+	virtual std::string input_port_name () const = 0;
+	virtual std::string output_port_name () const = 0;
+
+	void write (const MidiByteArray&);
+
+	XMLNode& get_state() const;
+	int set_state (const XMLNode & node, int version);
+
+	std::list<boost::shared_ptr<ARDOUR::Bundle> > bundles ();
+
+	PBD::Signal0<void> ConnectionChange;
+
+	CONTROL_PROTOCOL_THREADS_NEED_TEMPO_MAP_DECL();
+
+  private:
+	bool with_pad_filter;
+	bool _in_use;
+	MIDI::Port* _input_port;
+	MIDI::Port* _output_port;
+
+	boost::shared_ptr<ARDOUR::Port> _async_in;
+	boost::shared_ptr<ARDOUR::Port> _async_out;
+
+	void do_request (MidiSurfaceRequest*);
+
+	virtual void connect_to_parser ();
+	virtual void handle_midi_pitchbend_message (MIDI::Parser&, MIDI::pitchbend_t) {}
+	virtual void handle_midi_controller_message (MIDI::Parser&, MIDI::EventTwoBytes*) {}
+	virtual void handle_midi_note_on_message (MIDI::Parser&, MIDI::EventTwoBytes*) {}
+	virtual void handle_midi_note_off_message (MIDI::Parser&, MIDI::EventTwoBytes*) {}
+	virtual void handle_midi_sysex (MIDI::Parser&, MIDI::byte *, size_t count) {}
+
+	virtual bool midi_input_handler (Glib::IOCondition ioc, MIDI::Port* port);
+
+	virtual void thread_init ();
+
+	PBD::ScopedConnectionList session_connections;
+
+	virtual void connect_session_signals ();
+	virtual void notify_record_state_changed () {}
+	virtual void notify_transport_state_changed () {}
+	virtual void notify_loop_state_changed () {}
+	virtual void notify_parameter_changed (std::string) {}
+	virtual void notify_solo_active_changed (bool) {}
+
+	virtual void port_registration_handler ();
+	virtual bool pad_filter (ARDOUR::MidiBuffer& in, ARDOUR::MidiBuffer& out) const { return false; }
+
+	enum ConnectionState {
+		InputConnected = 0x1,
+		OutputConnected = 0x2
+	};
+
+	int _connection_state;
+
+	virtual bool connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boost::weak_ptr<ARDOUR::Port>, std::string name2, bool yn);
+	PBD::ScopedConnectionList port_connections;
+
+	virtual int ports_acquire ();
+	virtual void ports_release ();
+
+	virtual int begin_using_device ();
+	virtual int stop_using_device ();
+	virtual int device_acquire () = 0;
+	virtual void device_release () = 0;
+};