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midi_Message.h
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midi_Message.h
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/*!
* @file midi_Message.h
* Project Arduino MIDI Library
* @brief MIDI Library for the Arduino - Message struct definition
* @author Francois Best
* @date 11/06/14
* @license MIT - Copyright (c) 2015 Francois Best
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#pragma once
#include "midi_Namespace.h"
#include "midi_Defs.h"
#ifndef ARDUINO
#include <string.h>
#endif
BEGIN_MIDI_NAMESPACE
/*! The Message structure contains decoded data of a MIDI message
read from the serial port with read()
*/
template<unsigned SysExMaxSize>
struct Message
{
/*! Default constructor
\n Initializes the attributes with their default values.
*/
inline Message()
: channel(0)
, type(MIDI_NAMESPACE::InvalidType)
, data1(0)
, data2(0)
, valid(false)
{
memset(sysexArray, 0, sSysExMaxSize * sizeof(DataByte));
}
inline Message(const Message& inOther)
: channel(inOther.channel)
, type(inOther.type)
, data1(inOther.data1)
, data2(inOther.data2)
, valid(inOther.valid)
, length(inOther.length)
{
if (type == midi::SystemExclusive)
{
memcpy(sysexArray, inOther.sysexArray, sSysExMaxSize * sizeof(DataByte));
}
}
/*! The maximum size for the System Exclusive array.
*/
static const unsigned sSysExMaxSize = SysExMaxSize;
/*! The MIDI channel on which the message was recieved.
\n Value goes from 1 to 16.
*/
Channel channel;
/*! The type of the message
(see the MidiType enum for types reference)
*/
MidiType type;
/*! The first data byte.
\n Value goes from 0 to 127.
*/
DataByte data1;
/*! The second data byte.
If the message is only 2 bytes long, this one is null.
\n Value goes from 0 to 127.
*/
DataByte data2;
/*! System Exclusive dedicated byte array.
\n Array length is stocked on 16 bits,
in data1 (LSB) and data2 (MSB)
*/
DataByte sysexArray[sSysExMaxSize];
/*! This boolean indicates if the message is valid or not.
There is no channel consideration here,
validity means the message respects the MIDI norm.
*/
bool valid;
/*! Total Length of the message.
*/
unsigned length;
inline unsigned getSysExSize() const
{
const unsigned size = unsigned(data2) << 8 | data1;
return size > sSysExMaxSize ? sSysExMaxSize : size;
}
inline bool isSystemRealTime () const
{
return (type & 0xf8) == 0xf8;
}
inline bool isSystemCommon () const
{
return (type & 0xf8) == 0xf0;
}
inline bool isChannelMessage () const
{
return (type & 0xf0) != 0xf0;
}
};
END_MIDI_NAMESPACE