webmidi_driver.h

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/*  webmidi_driver.h                                                      */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#pragma once

#include "core/os/midi_driver.h"

#include "godot_js.h"
#include "godot_midi.h"

class MIDIDriverWebMidi : public MIDIDriver {
private:
	static const int MAX_EVENT_BUFFER_LENGTH = 2;
	uint8_t _event_buffer[MAX_EVENT_BUFFER_LENGTH];

public:
	// Override return type to make writing static callbacks less tedious.
	static MIDIDriverWebMidi *get_singleton();

	virtual Error open() override;
	virtual void close() override final;

	MIDIDriverWebMidi() = default;
	virtual ~MIDIDriverWebMidi();

	WASM_EXPORT static void set_input_names_callback(int p_size, const char **p_input_names);
	static void _set_input_names_callback(const Vector<String> &p_input_names);

	WASM_EXPORT static void on_midi_message(int p_device_index, int p_status, const uint8_t *p_data, int p_data_len);
	static void _on_midi_message(int p_device_index, int p_status, const PackedByteArray &p_data, int p_data_len);
};