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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-runtime-lib
* Created on: 14 марта 2016 г.
*
* lsp-runtime-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-runtime-lib 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-runtime-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_PROTOCOL_MIDI_H_
#define LSP_PLUG_IN_PROTOCOL_MIDI_H_
#include <lsp-plug.in/runtime/version.h>
#include <lsp-plug.in/common/types.h>
namespace lsp
{
// Generalized midi event structure
namespace midi
{
#pragma pack(push, 1)
typedef struct event_t
{
uint32_t timestamp; // Timestamp
uint8_t type; // Type of event
uint8_t channel; // ID of the MIDI channel
union
{
uint8_t bparams[2]; // Byte parameters
struct
{
uint8_t pitch; // Note key
uint8_t velocity; // Note velocity
} note;
struct
{
uint8_t control; // Control
uint8_t value; // Value
} ctl;
struct
{
uint8_t pitch; // Note key
uint8_t pressure; // Note pressure
} atouch;
struct
{
uint8_t pressure; // Channel pressure
} chn;
uint8_t program; // program
uint16_t bend;
struct
{
uint8_t type;
uint8_t value;
} mtc;
uint16_t beats;
uint8_t song;
};
} event_t;
#pragma pack(pop)
enum message_t
{
MIDI_MSG_NOTE_OFF = 0x80,
MIDI_MSG_NOTE_ON = 0x90,
MIDI_MSG_NOTE_PRESSURE = 0xa0,
MIDI_MSG_NOTE_CONTROLLER = 0xb0,
MIDI_MSG_PROGRAM_CHANGE = 0xc0,
MIDI_MSG_CHANNEL_PRESSURE = 0xd0,
MIDI_MSG_PITCH_BEND = 0xe0,
MIDI_MSG_SYSTEM_EXCLUSIVE = 0xf0,
MIDI_MSG_MTC_QUARTER = 0xf1,
MIDI_MSG_SONG_POS = 0xf2,
MIDI_MSG_SONG_SELECT = 0xf3,
MIDI_MSG_TUNE_REQUEST = 0xf6,
MIDI_MSG_END_EXCLUSIVE = 0xf7,
MIDI_MSG_CLOCK = 0xf8,
MIDI_MSG_START = 0xfa,
MIDI_MSG_CONTINUE = 0xfb,
MIDI_MSG_STOP = 0xfc,
MIDI_MSG_ACTIVE_SENSING = 0xfe,
MIDI_MSG_RESET = 0xff
};
enum controller_t
{
MIDI_CTL_MSB_BANK = 0x00,
MIDI_CTL_MSB_MODWHEEL = 0x01,
MIDI_CTL_MSB_BREATH = 0x02,
MIDI_CTL_MSB_FOOT = 0x04,
MIDI_CTL_MSB_PORTAMENTO_TIME = 0x05,
MIDI_CTL_MSB_DATA_ENTRY = 0x06,
MIDI_CTL_MSB_MAIN_VOLUME = 0x07,
MIDI_CTL_MSB_BALANCE = 0x08,
MIDI_CTL_MSB_PAN = 0x0a,
MIDI_CTL_MSB_EXPRESSION = 0x0b,
MIDI_CTL_MSB_EFFECT1 = 0x0c,
MIDI_CTL_MSB_EFFECT2 = 0x0d,
MIDI_CTL_MSB_GENERAL_PURPOSE1 = 0x10,
MIDI_CTL_MSB_GENERAL_PURPOSE2 = 0x11,
MIDI_CTL_MSB_GENERAL_PURPOSE3 = 0x12,
MIDI_CTL_MSB_GENERAL_PURPOSE4 = 0x13,
MIDI_CTL_LSB_BANK = 0x20,
MIDI_CTL_LSB_MODWHEEL = 0x21,
MIDI_CTL_LSB_BREATH = 0x22,
MIDI_CTL_LSB_FOOT = 0x24,
MIDI_CTL_LSB_PORTAMENTO_TIME = 0x25,
MIDI_CTL_LSB_DATA_ENTRY = 0x26,
MIDI_CTL_LSB_MAIN_VOLUME = 0x27,
MIDI_CTL_LSB_BALANCE = 0x28,
MIDI_CTL_LSB_PAN = 0x2a,
MIDI_CTL_LSB_EXPRESSION = 0x2b,
MIDI_CTL_LSB_EFFECT1 = 0x2c,
MIDI_CTL_LSB_EFFECT2 = 0x2d,
MIDI_CTL_LSB_GENERAL_PURPOSE1 = 0x30,
MIDI_CTL_LSB_GENERAL_PURPOSE2 = 0x31,
MIDI_CTL_LSB_GENERAL_PURPOSE3 = 0x32,
MIDI_CTL_LSB_GENERAL_PURPOSE4 = 0x33,
MIDI_CTL_SUSTAIN = 0x40,
MIDI_CTL_PORTAMENTO = 0x41,
MIDI_CTL_SOSTENUTO = 0x42,
MIDI_CTL_SOFT_PEDAL = 0x43,
MIDI_CTL_LEGATO_FOOTSWITCH = 0x44,
MIDI_CTL_HOLD2 = 0x45,
MIDI_CTL_SC1_SOUND_VARIATION = 0x46,
MIDI_CTL_SC2_TIMBRE = 0x47,
MIDI_CTL_SC3_RELEASE_TIME = 0x48,
MIDI_CTL_SC4_ATTACK_TIME = 0x49,
MIDI_CTL_SC5_BRIGHTNESS = 0x4a,
MIDI_CTL_SC6 = 0x4b,
MIDI_CTL_SC7 = 0x4c,
MIDI_CTL_SC8 = 0x4d,
MIDI_CTL_SC9 = 0x4e,
MIDI_CTL_SC10 = 0x4f,
MIDI_CTL_GENERAL_PURPOSE5 = 0x50,
MIDI_CTL_GENERAL_PURPOSE6 = 0x51,
MIDI_CTL_GENERAL_PURPOSE7 = 0x52,
MIDI_CTL_GENERAL_PURPOSE8 = 0x53,
MIDI_CTL_PORTAMENTO_CONTROL = 0x54,
MIDI_CTL_E1_REVERB_DEPTH = 0x5b,
MIDI_CTL_E2_TREMOLO_DEPTH = 0x5c,
MIDI_CTL_E3_CHORUS_DEPTH = 0x5d,
MIDI_CTL_E4_DETUNE_DEPTH = 0x5e,
MIDI_CTL_E5_PHASER_DEPTH = 0x5f,
MIDI_CTL_DATA_INCREMENT = 0x60,
MIDI_CTL_DATA_DECREMENT = 0x61,
MIDI_CTL_NRPN_LSB = 0x62,
MIDI_CTL_NRPN_MSB = 0x63,
MIDI_CTL_RPN_LSB = 0x64,
MIDI_CTL_RPN_MSB = 0x65,
MIDI_CTL_ALL_SOUNDS_OFF = 0x78,
MIDI_CTL_RESET_CONTROLLERS = 0x79,
MIDI_CTL_LOCAL_CONTROL_SWITCH = 0x7a,
MIDI_CTL_ALL_NOTES_OFF = 0x7b,
MIDI_CTL_OMNI_OFF = 0x7c,
MIDI_CTL_OMNI_ON = 0x7d,
MIDI_CTL_MONO1 = 0x7e,
MIDI_CTL_MONO2 = 0x7f
};
/**
* Decode MIDI message
* @param ev MIDI event structure to decode
* @param bytes buffer containing MIDI message
* @return number of bytes used for decodingm negative value on error, never zero
*/
ssize_t decode(event_t *ev, const uint8_t *bytes);
/**
* Encode MIDI message
* @param bytes buffer to store encoded MIDI message
* @param ev MIDI event to encode
* @return number of bytes used for encoding, negative value on error, never zero
*/
ssize_t encode(uint8_t *bytes, const event_t *ev);
/**
* Return number of bytes required for encoding
* @param ev MIDI event
* @return number of bytes required to encode MIDI event, negative value on error, never zero
*/
ssize_t size_of(const event_t *ev);
}
}
#endif /* LSP_PLUG_IN_PROTOCOL_MIDI_H_ */
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