1205 lines
44 KiB
C++
1205 lines
44 KiB
C++
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/*!
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* @file MIDI.hpp
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* Project Arduino MIDI Library
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* @brief MIDI Library for the Arduino - Inline implementations
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* @version 4.2
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* @author Francois Best
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* @date 24/02/11
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* @license GPL v3.0 - Copyright Forty Seven Effects 2014
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*
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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 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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BEGIN_MIDI_NAMESPACE
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/// \brief Constructor for MidiInterface.
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template<class SerialPort, class Settings>
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inline MidiInterface<SerialPort, Settings>::MidiInterface(SerialPort& inSerial)
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: mSerial(inSerial)
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{
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mNoteOffCallback = 0;
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mNoteOnCallback = 0;
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mAfterTouchPolyCallback = 0;
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mControlChangeCallback = 0;
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mProgramChangeCallback = 0;
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mAfterTouchChannelCallback = 0;
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mPitchBendCallback = 0;
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mSystemExclusiveCallback = 0;
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mTimeCodeQuarterFrameCallback = 0;
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mSongPositionCallback = 0;
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mSongSelectCallback = 0;
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mTuneRequestCallback = 0;
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mClockCallback = 0;
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mStartCallback = 0;
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mContinueCallback = 0;
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mStopCallback = 0;
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mActiveSensingCallback = 0;
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mSystemResetCallback = 0;
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}
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/*! \brief Destructor for MidiInterface.
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This is not really useful for the Arduino, as it is never called...
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*/
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template<class SerialPort, class Settings>
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inline MidiInterface<SerialPort, Settings>::~MidiInterface()
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{
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}
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// -----------------------------------------------------------------------------
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/*! \brief Call the begin method in the setup() function of the Arduino.
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All parameters are set to their default values:
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- Input channel set to 1 if no value is specified
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- Full thru mirroring
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::begin(Channel inChannel)
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{
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// Initialise the Serial port
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#if defined(FSE_AVR)
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mSerial. template open<Settings::BaudRate>();
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#else
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mSerial.begin(Settings::BaudRate);
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#endif
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mInputChannel = inChannel;
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mRunningStatus_TX = InvalidType;
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mRunningStatus_RX = InvalidType;
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mPendingMessageIndex = 0;
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mPendingMessageExpectedLenght = 0;
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mMessage.valid = false;
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mMessage.type = InvalidType;
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mMessage.channel = 0;
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mMessage.data1 = 0;
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mMessage.data2 = 0;
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mThruFilterMode = Full;
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mThruActivated = true;
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}
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// -----------------------------------------------------------------------------
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// Output
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// -----------------------------------------------------------------------------
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/*! \addtogroup output
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@{
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*/
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/*! \brief Generate and send a MIDI message from the values given.
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\param inType The message type (see type defines for reference)
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\param inData1 The first data byte.
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\param inData2 The second data byte (if the message contains only 1 data byte,
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set this one to 0).
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\param inChannel The output channel on which the message will be sent
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(values from 1 to 16). Note: you cannot send to OMNI.
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This is an internal method, use it only if you need to send raw data
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from your code, at your own risks.
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::send(MidiType inType,
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DataByte inData1,
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DataByte inData2,
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Channel inChannel)
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{
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// Then test if channel is valid
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if (inChannel >= MIDI_CHANNEL_OFF ||
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inChannel == MIDI_CHANNEL_OMNI ||
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inType < 0x80)
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{
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if (Settings::UseRunningStatus)
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{
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mRunningStatus_TX = InvalidType;
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}
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return; // Don't send anything
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}
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if (inType <= PitchBend) // Channel messages
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{
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// Protection: remove MSBs on data
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inData1 &= 0x7f;
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inData2 &= 0x7f;
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const StatusByte status = getStatus(inType, inChannel);
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if (Settings::UseRunningStatus)
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{
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if (mRunningStatus_TX != status)
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{
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// New message, memorise and send header
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mRunningStatus_TX = status;
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mSerial.write(mRunningStatus_TX);
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}
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}
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else
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{
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// Don't care about running status, send the status byte.
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mSerial.write(status);
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}
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// Then send data
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mSerial.write(inData1);
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if (inType != ProgramChange && inType != AfterTouchChannel)
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{
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mSerial.write(inData2);
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}
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}
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else if (inType >= TuneRequest && inType <= SystemReset)
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{
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sendRealTime(inType); // System Real-time and 1 byte.
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}
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}
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// -----------------------------------------------------------------------------
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/*! \brief Send a Note On message
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\param inNoteNumber Pitch value in the MIDI format (0 to 127).
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\param inVelocity Note attack velocity (0 to 127). A NoteOn with 0 velocity
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is considered as a NoteOff.
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\param inChannel The channel on which the message will be sent (1 to 16).
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Take a look at the values, names and frequencies of notes here:
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http://www.phys.unsw.edu.au/jw/notes.html
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendNoteOn(DataByte inNoteNumber,
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DataByte inVelocity,
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Channel inChannel)
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{
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send(NoteOn, inNoteNumber, inVelocity, inChannel);
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}
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/*! \brief Send a Note Off message
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\param inNoteNumber Pitch value in the MIDI format (0 to 127).
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\param inVelocity Release velocity (0 to 127).
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\param inChannel The channel on which the message will be sent (1 to 16).
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Note: you can send NoteOn with zero velocity to make a NoteOff, this is based
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on the Running Status principle, to avoid sending status messages and thus
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sending only NoteOn data. sendNoteOff will always send a real NoteOff message.
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Take a look at the values, names and frequencies of notes here:
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http://www.phys.unsw.edu.au/jw/notes.html
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendNoteOff(DataByte inNoteNumber,
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DataByte inVelocity,
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Channel inChannel)
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{
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send(NoteOff, inNoteNumber, inVelocity, inChannel);
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}
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/*! \brief Send a Program Change message
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\param inProgramNumber The Program to select (0 to 127).
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\param inChannel The channel on which the message will be sent (1 to 16).
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendProgramChange(DataByte inProgramNumber,
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Channel inChannel)
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{
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send(ProgramChange, inProgramNumber, 0, inChannel);
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}
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/*! \brief Send a Control Change message
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\param inControlNumber The controller number (0 to 127).
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\param inControlValue The value for the specified controller (0 to 127).
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\param inChannel The channel on which the message will be sent (1 to 16).
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@see MidiControlChangeNumber
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendControlChange(DataByte inControlNumber,
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DataByte inControlValue,
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Channel inChannel)
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{
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send(ControlChange, inControlNumber, inControlValue, inChannel);
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}
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/*! \brief Send a Polyphonic AfterTouch message (applies to a specified note)
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\param inNoteNumber The note to apply AfterTouch to (0 to 127).
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\param inPressure The amount of AfterTouch to apply (0 to 127).
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\param inChannel The channel on which the message will be sent (1 to 16).
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendPolyPressure(DataByte inNoteNumber,
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DataByte inPressure,
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Channel inChannel)
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{
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send(AfterTouchPoly, inNoteNumber, inPressure, inChannel);
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}
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/*! \brief Send a MonoPhonic AfterTouch message (applies to all notes)
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\param inPressure The amount of AfterTouch to apply to all notes.
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\param inChannel The channel on which the message will be sent (1 to 16).
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendAfterTouch(DataByte inPressure,
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Channel inChannel)
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{
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send(AfterTouchChannel, inPressure, 0, inChannel);
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}
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/*! \brief Send a Pitch Bend message using a signed integer value.
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\param inPitchValue The amount of bend to send (in a signed integer format),
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between MIDI_PITCHBEND_MIN and MIDI_PITCHBEND_MAX,
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center value is 0.
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\param inChannel The channel on which the message will be sent (1 to 16).
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendPitchBend(int inPitchValue,
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Channel inChannel)
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{
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const unsigned bend = inPitchValue - MIDI_PITCHBEND_MIN;
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send(PitchBend, (bend & 0x7f), (bend >> 7) & 0x7f, inChannel);
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}
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/*! \brief Send a Pitch Bend message using a floating point value.
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\param inPitchValue The amount of bend to send (in a floating point format),
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between -1.0f (maximum downwards bend)
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and +1.0f (max upwards bend), center value is 0.0f.
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\param inChannel The channel on which the message will be sent (1 to 16).
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendPitchBend(double inPitchValue,
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Channel inChannel)
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{
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const int value = inPitchValue * MIDI_PITCHBEND_MAX * Settings::Toto;
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sendPitchBend(value, inChannel);
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}
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/*! \brief Generate and send a System Exclusive frame.
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\param inLength The size of the array to send
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\param inArray The byte array containing the data to send
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\param inArrayContainsBoundaries When set to 'true', 0xf0 & 0xf7 bytes
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(start & stop SysEx) will NOT be sent
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(and therefore must be included in the array).
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default value for ArrayContainsBoundaries is set to 'false' for compatibility
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with previous versions of the library.
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendSysEx(unsigned inLength,
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const byte* inArray,
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bool inArrayContainsBoundaries)
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{
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const bool writeBeginEndBytes = !inArrayContainsBoundaries;
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if (writeBeginEndBytes)
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{
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mSerial.write(0xf0);
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}
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for (unsigned i = 0; i < inLength; ++i)
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{
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mSerial.write(inArray[i]);
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}
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if (writeBeginEndBytes)
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{
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mSerial.write(0xf7);
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}
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if (Settings::UseRunningStatus)
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{
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mRunningStatus_TX = InvalidType;
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}
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}
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/*! \brief Send a Tune Request message.
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When a MIDI unit receives this message,
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it should tune its oscillators (if equipped with any).
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendTuneRequest()
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{
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sendRealTime(TuneRequest);
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}
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/*! \brief Send a MIDI Time Code Quarter Frame.
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\param inTypeNibble MTC type
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\param inValuesNibble MTC data
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See MIDI Specification for more information.
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*/
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template<class SerialPort, class Settings>
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void MidiInterface<SerialPort, Settings>::sendTimeCodeQuarterFrame(DataByte inTypeNibble,
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DataByte inValuesNibble)
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{
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const byte data = (((inTypeNibble & 0x07) << 4) | (inValuesNibble & 0x0f));
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sendTimeCodeQuarterFrame(data);
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}
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/*! \brief Send a MIDI Time Code Quarter Frame.
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||
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||
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See MIDI Specification for more information.
|
||
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\param inData if you want to encode directly the nibbles in your program,
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you can send the byte here.
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*/
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template<class SerialPort, class Settings>
|
||
|
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void MidiInterface<SerialPort, Settings>::sendTimeCodeQuarterFrame(DataByte inData)
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||
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{
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mSerial.write((byte)TimeCodeQuarterFrame);
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mSerial.write(inData);
|
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|
||
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if (Settings::UseRunningStatus)
|
||
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{
|
||
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mRunningStatus_TX = InvalidType;
|
||
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}
|
||
|
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}
|
||
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|
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/*! \brief Send a Song Position Pointer message.
|
||
|
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\param inBeats The number of beats since the start of the song.
|
||
|
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*/
|
||
|
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template<class SerialPort, class Settings>
|
||
|
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void MidiInterface<SerialPort, Settings>::sendSongPosition(unsigned inBeats)
|
||
|
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{
|
||
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mSerial.write((byte)SongPosition);
|
||
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mSerial.write(inBeats & 0x7f);
|
||
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mSerial.write((inBeats >> 7) & 0x7f);
|
||
|
|
|
||
|
|
if (Settings::UseRunningStatus)
|
||
|
|
{
|
||
|
|
mRunningStatus_TX = InvalidType;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Send a Song Select message */
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::sendSongSelect(DataByte inSongNumber)
|
||
|
|
{
|
||
|
|
mSerial.write((byte)SongSelect);
|
||
|
|
mSerial.write(inSongNumber & 0x7f);
|
||
|
|
|
||
|
|
if (Settings::UseRunningStatus)
|
||
|
|
{
|
||
|
|
mRunningStatus_TX = InvalidType;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Send a Real Time (one byte) message.
|
||
|
|
|
||
|
|
\param inType The available Real Time types are:
|
||
|
|
Start, Stop, Continue, Clock, ActiveSensing and SystemReset.
|
||
|
|
You can also send a Tune Request with this method.
|
||
|
|
@see MidiType
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::sendRealTime(MidiType inType)
|
||
|
|
{
|
||
|
|
switch (inType)
|
||
|
|
{
|
||
|
|
case TuneRequest: // Not really real-time, but one byte anyway.
|
||
|
|
case Clock:
|
||
|
|
case Start:
|
||
|
|
case Stop:
|
||
|
|
case Continue:
|
||
|
|
case ActiveSensing:
|
||
|
|
case SystemReset:
|
||
|
|
mSerial.write((byte)inType);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
// Invalid Real Time marker
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Do not cancel Running Status for real-time messages as they can be
|
||
|
|
// interleaved within any message. Though, TuneRequest can be sent here,
|
||
|
|
// and as it is a System Common message, it must reset Running Status.
|
||
|
|
if (Settings::UseRunningStatus && inType == TuneRequest)
|
||
|
|
{
|
||
|
|
mRunningStatus_TX = InvalidType;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! @} */ // End of doc group MIDI Output
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
StatusByte MidiInterface<SerialPort, Settings>::getStatus(MidiType inType,
|
||
|
|
Channel inChannel) const
|
||
|
|
{
|
||
|
|
return ((byte)inType | ((inChannel - 1) & 0x0f));
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
// Input
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/*! \addtogroup input
|
||
|
|
@{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*! \brief Read messages from the serial port using the main input channel.
|
||
|
|
|
||
|
|
\return True if a valid message has been stored in the structure, false if not.
|
||
|
|
A valid message is a message that matches the input channel. \n\n
|
||
|
|
If the Thru is enabled and the message matches the filter,
|
||
|
|
it is sent back on the MIDI output.
|
||
|
|
@see see setInputChannel()
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline bool MidiInterface<SerialPort, Settings>::read()
|
||
|
|
{
|
||
|
|
return read(mInputChannel);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Read messages on a specified channel.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline bool MidiInterface<SerialPort, Settings>::read(Channel inChannel)
|
||
|
|
{
|
||
|
|
if (inChannel >= MIDI_CHANNEL_OFF)
|
||
|
|
return false; // MIDI Input disabled.
|
||
|
|
|
||
|
|
if (!parse())
|
||
|
|
return false;
|
||
|
|
|
||
|
|
handleNullVelocityNoteOnAsNoteOff();
|
||
|
|
const bool channelMatch = inputFilter(inChannel);
|
||
|
|
|
||
|
|
if (channelMatch)
|
||
|
|
{
|
||
|
|
launchCallback();
|
||
|
|
}
|
||
|
|
|
||
|
|
thruFilter(inChannel);
|
||
|
|
|
||
|
|
return channelMatch;
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
// Private method: MIDI parser
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
bool MidiInterface<SerialPort, Settings>::parse()
|
||
|
|
{
|
||
|
|
if (mSerial.available() == 0)
|
||
|
|
// No data available.
|
||
|
|
return false;
|
||
|
|
|
||
|
|
// Parsing algorithm:
|
||
|
|
// Get a byte from the serial buffer.
|
||
|
|
// If there is no pending message to be recomposed, start a new one.
|
||
|
|
// - Find type and channel (if pertinent)
|
||
|
|
// - Look for other bytes in buffer, call parser recursively,
|
||
|
|
// until the message is assembled or the buffer is empty.
|
||
|
|
// Else, add the extracted byte to the pending message, and check validity.
|
||
|
|
// When the message is done, store it.
|
||
|
|
|
||
|
|
const byte extracted = mSerial.read();
|
||
|
|
|
||
|
|
if (mPendingMessageIndex == 0)
|
||
|
|
{
|
||
|
|
// Start a new pending message
|
||
|
|
mPendingMessage[0] = extracted;
|
||
|
|
|
||
|
|
// Check for running status first
|
||
|
|
if (isChannelMessage(getTypeFromStatusByte(mRunningStatus_RX)))
|
||
|
|
{
|
||
|
|
// Only these types allow Running Status
|
||
|
|
|
||
|
|
// If the status byte is not received, prepend it
|
||
|
|
// to the pending message
|
||
|
|
if (extracted < 0x80)
|
||
|
|
{
|
||
|
|
mPendingMessage[0] = mRunningStatus_RX;
|
||
|
|
mPendingMessage[1] = extracted;
|
||
|
|
mPendingMessageIndex = 1;
|
||
|
|
}
|
||
|
|
// Else: well, we received another status byte,
|
||
|
|
// so the running status does not apply here.
|
||
|
|
// It will be updated upon completion of this message.
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (getTypeFromStatusByte(mPendingMessage[0]))
|
||
|
|
{
|
||
|
|
// 1 byte messages
|
||
|
|
case Start:
|
||
|
|
case Continue:
|
||
|
|
case Stop:
|
||
|
|
case Clock:
|
||
|
|
case ActiveSensing:
|
||
|
|
case SystemReset:
|
||
|
|
case TuneRequest:
|
||
|
|
// Handle the message type directly here.
|
||
|
|
mMessage.type = getTypeFromStatusByte(mPendingMessage[0]);
|
||
|
|
mMessage.channel = 0;
|
||
|
|
mMessage.data1 = 0;
|
||
|
|
mMessage.data2 = 0;
|
||
|
|
mMessage.valid = true;
|
||
|
|
|
||
|
|
// \fix Running Status broken when receiving Clock messages.
|
||
|
|
// Do not reset all input attributes, Running Status must remain unchanged.
|
||
|
|
//resetInput();
|
||
|
|
|
||
|
|
// We still need to reset these
|
||
|
|
mPendingMessageIndex = 0;
|
||
|
|
mPendingMessageExpectedLenght = 0;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
break;
|
||
|
|
|
||
|
|
// 2 bytes messages
|
||
|
|
case ProgramChange:
|
||
|
|
case AfterTouchChannel:
|
||
|
|
case TimeCodeQuarterFrame:
|
||
|
|
case SongSelect:
|
||
|
|
mPendingMessageExpectedLenght = 2;
|
||
|
|
break;
|
||
|
|
|
||
|
|
// 3 bytes messages
|
||
|
|
case NoteOn:
|
||
|
|
case NoteOff:
|
||
|
|
case ControlChange:
|
||
|
|
case PitchBend:
|
||
|
|
case AfterTouchPoly:
|
||
|
|
case SongPosition:
|
||
|
|
mPendingMessageExpectedLenght = 3;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case SystemExclusive:
|
||
|
|
// The message can be any lenght
|
||
|
|
// between 3 and MidiMessage::sSysExMaxSize bytes
|
||
|
|
mPendingMessageExpectedLenght = MidiMessage::sSysExMaxSize;
|
||
|
|
mRunningStatus_RX = InvalidType;
|
||
|
|
mMessage.sysexArray[0] = SystemExclusive;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case InvalidType:
|
||
|
|
default:
|
||
|
|
// This is obviously wrong. Let's get the hell out'a here.
|
||
|
|
resetInput();
|
||
|
|
return false;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mPendingMessageIndex >= (mPendingMessageExpectedLenght - 1))
|
||
|
|
{
|
||
|
|
// Reception complete
|
||
|
|
mMessage.type = getTypeFromStatusByte(mPendingMessage[0]);
|
||
|
|
mMessage.channel = getChannelFromStatusByte(mPendingMessage[0]);
|
||
|
|
mMessage.data1 = mPendingMessage[1];
|
||
|
|
|
||
|
|
// Save data2 only if applicable
|
||
|
|
if (mPendingMessageExpectedLenght == 3)
|
||
|
|
mMessage.data2 = mPendingMessage[2];
|
||
|
|
else
|
||
|
|
mMessage.data2 = 0;
|
||
|
|
|
||
|
|
mPendingMessageIndex = 0;
|
||
|
|
mPendingMessageExpectedLenght = 0;
|
||
|
|
mMessage.valid = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Waiting for more data
|
||
|
|
mPendingMessageIndex++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Settings::Use1ByteParsing)
|
||
|
|
{
|
||
|
|
// Message is not complete.
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Call the parser recursively
|
||
|
|
// to parse the rest of the message.
|
||
|
|
return parse();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// First, test if this is a status byte
|
||
|
|
if (extracted >= 0x80)
|
||
|
|
{
|
||
|
|
// Reception of status bytes in the middle of an uncompleted message
|
||
|
|
// are allowed only for interleaved Real Time message or EOX
|
||
|
|
switch (extracted)
|
||
|
|
{
|
||
|
|
case Clock:
|
||
|
|
case Start:
|
||
|
|
case Continue:
|
||
|
|
case Stop:
|
||
|
|
case ActiveSensing:
|
||
|
|
case SystemReset:
|
||
|
|
|
||
|
|
// Here we will have to extract the one-byte message,
|
||
|
|
// pass it to the structure for being read outside
|
||
|
|
// the MIDI class, and recompose the message it was
|
||
|
|
// interleaved into. Oh, and without killing the running status..
|
||
|
|
// This is done by leaving the pending message as is,
|
||
|
|
// it will be completed on next calls.
|
||
|
|
|
||
|
|
mMessage.type = (MidiType)extracted;
|
||
|
|
mMessage.data1 = 0;
|
||
|
|
mMessage.data2 = 0;
|
||
|
|
mMessage.channel = 0;
|
||
|
|
mMessage.valid = true;
|
||
|
|
return true;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
// End of Exclusive
|
||
|
|
case 0xf7:
|
||
|
|
if (mMessage.sysexArray[0] == SystemExclusive)
|
||
|
|
{
|
||
|
|
// Store the last byte (EOX)
|
||
|
|
mMessage.sysexArray[mPendingMessageIndex++] = 0xf7;
|
||
|
|
mMessage.type = SystemExclusive;
|
||
|
|
|
||
|
|
// Get length
|
||
|
|
mMessage.data1 = mPendingMessageIndex & 0xff; // LSB
|
||
|
|
mMessage.data2 = mPendingMessageIndex >> 8; // MSB
|
||
|
|
mMessage.channel = 0;
|
||
|
|
mMessage.valid = true;
|
||
|
|
|
||
|
|
resetInput();
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Well well well.. error.
|
||
|
|
resetInput();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add extracted data byte to pending message
|
||
|
|
if (mPendingMessage[0] == SystemExclusive)
|
||
|
|
mMessage.sysexArray[mPendingMessageIndex] = extracted;
|
||
|
|
else
|
||
|
|
mPendingMessage[mPendingMessageIndex] = extracted;
|
||
|
|
|
||
|
|
// Now we are going to check if we have reached the end of the message
|
||
|
|
if (mPendingMessageIndex >= (mPendingMessageExpectedLenght - 1))
|
||
|
|
{
|
||
|
|
// "FML" case: fall down here with an overflown SysEx..
|
||
|
|
// This means we received the last possible data byte that can fit
|
||
|
|
// the buffer. If this happens, try increasing MidiMessage::sSysExMaxSize.
|
||
|
|
if (mPendingMessage[0] == SystemExclusive)
|
||
|
|
{
|
||
|
|
resetInput();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
mMessage.type = getTypeFromStatusByte(mPendingMessage[0]);
|
||
|
|
|
||
|
|
if (isChannelMessage(mMessage.type))
|
||
|
|
mMessage.channel = getChannelFromStatusByte(mPendingMessage[0]);
|
||
|
|
else
|
||
|
|
mMessage.channel = 0;
|
||
|
|
|
||
|
|
mMessage.data1 = mPendingMessage[1];
|
||
|
|
|
||
|
|
// Save data2 only if applicable
|
||
|
|
if (mPendingMessageExpectedLenght == 3)
|
||
|
|
mMessage.data2 = mPendingMessage[2];
|
||
|
|
else
|
||
|
|
mMessage.data2 = 0;
|
||
|
|
|
||
|
|
// Reset local variables
|
||
|
|
mPendingMessageIndex = 0;
|
||
|
|
mPendingMessageExpectedLenght = 0;
|
||
|
|
|
||
|
|
mMessage.valid = true;
|
||
|
|
|
||
|
|
// Activate running status (if enabled for the received type)
|
||
|
|
switch (mMessage.type)
|
||
|
|
{
|
||
|
|
case NoteOff:
|
||
|
|
case NoteOn:
|
||
|
|
case AfterTouchPoly:
|
||
|
|
case ControlChange:
|
||
|
|
case ProgramChange:
|
||
|
|
case AfterTouchChannel:
|
||
|
|
case PitchBend:
|
||
|
|
// Running status enabled: store it from received message
|
||
|
|
mRunningStatus_RX = mPendingMessage[0];
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
// No running status
|
||
|
|
mRunningStatus_RX = InvalidType;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Then update the index of the pending message.
|
||
|
|
mPendingMessageIndex++;
|
||
|
|
|
||
|
|
if (Settings::Use1ByteParsing)
|
||
|
|
{
|
||
|
|
// Message is not complete.
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Call the parser recursively to parse the rest of the message.
|
||
|
|
return parse();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Private method, see midi_Settings.h for documentation
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline void MidiInterface<SerialPort, Settings>::handleNullVelocityNoteOnAsNoteOff()
|
||
|
|
{
|
||
|
|
if (Settings::HandleNullVelocityNoteOnAsNoteOff &&
|
||
|
|
getType() == NoteOn && getData2() == 0)
|
||
|
|
{
|
||
|
|
mMessage.type = NoteOff;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Private method: check if the received message is on the listened channel
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline bool MidiInterface<SerialPort, Settings>::inputFilter(Channel inChannel)
|
||
|
|
{
|
||
|
|
// This method handles recognition of channel
|
||
|
|
// (to know if the message is destinated to the Arduino)
|
||
|
|
|
||
|
|
if (mMessage.type == InvalidType)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
// First, check if the received message is Channel
|
||
|
|
if (mMessage.type >= NoteOff && mMessage.type <= PitchBend)
|
||
|
|
{
|
||
|
|
// Then we need to know if we listen to it
|
||
|
|
if ((mMessage.channel == mInputChannel) ||
|
||
|
|
(mInputChannel == MIDI_CHANNEL_OMNI))
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// We don't listen to this channel
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// System messages are always received
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Private method: reset input attributes
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline void MidiInterface<SerialPort, Settings>::resetInput()
|
||
|
|
{
|
||
|
|
mPendingMessageIndex = 0;
|
||
|
|
mPendingMessageExpectedLenght = 0;
|
||
|
|
mRunningStatus_RX = InvalidType;
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/*! \brief Get the last received message's type
|
||
|
|
|
||
|
|
Returns an enumerated type. @see MidiType
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline MidiType MidiInterface<SerialPort, Settings>::getType() const
|
||
|
|
{
|
||
|
|
return mMessage.type;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Get the channel of the message stored in the structure.
|
||
|
|
|
||
|
|
\return Channel range is 1 to 16.
|
||
|
|
For non-channel messages, this will return 0.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline Channel MidiInterface<SerialPort, Settings>::getChannel() const
|
||
|
|
{
|
||
|
|
return mMessage.channel;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Get the first data byte of the last received message. */
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline DataByte MidiInterface<SerialPort, Settings>::getData1() const
|
||
|
|
{
|
||
|
|
return mMessage.data1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Get the second data byte of the last received message. */
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline DataByte MidiInterface<SerialPort, Settings>::getData2() const
|
||
|
|
{
|
||
|
|
return mMessage.data2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Get the System Exclusive byte array.
|
||
|
|
|
||
|
|
@see getSysExArrayLength to get the array's length in bytes.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline const byte* MidiInterface<SerialPort, Settings>::getSysExArray() const
|
||
|
|
{
|
||
|
|
return mMessage.sysexArray;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Get the lenght of the System Exclusive array.
|
||
|
|
|
||
|
|
It is coded using data1 as LSB and data2 as MSB.
|
||
|
|
\return The array's length, in bytes.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline unsigned MidiInterface<SerialPort, Settings>::getSysExArrayLength() const
|
||
|
|
{
|
||
|
|
return mMessage.getSysExSize();
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Check if a valid message is stored in the structure. */
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline bool MidiInterface<SerialPort, Settings>::check() const
|
||
|
|
{
|
||
|
|
return mMessage.valid;
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline Channel MidiInterface<SerialPort, Settings>::getInputChannel() const
|
||
|
|
{
|
||
|
|
return mInputChannel;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Set the value for the input MIDI channel
|
||
|
|
\param inChannel the channel value. Valid values are 1 to 16, MIDI_CHANNEL_OMNI
|
||
|
|
if you want to listen to all channels, and MIDI_CHANNEL_OFF to disable input.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline void MidiInterface<SerialPort, Settings>::setInputChannel(Channel inChannel)
|
||
|
|
{
|
||
|
|
mInputChannel = inChannel;
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/*! \brief Extract an enumerated MIDI type from a status byte.
|
||
|
|
|
||
|
|
This is a utility static method, used internally,
|
||
|
|
made public so you can handle MidiTypes more easily.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
MidiType MidiInterface<SerialPort, Settings>::getTypeFromStatusByte(byte inStatus)
|
||
|
|
{
|
||
|
|
if ((inStatus < 0x80) ||
|
||
|
|
(inStatus == 0xf4) ||
|
||
|
|
(inStatus == 0xf5) ||
|
||
|
|
(inStatus == 0xf9) ||
|
||
|
|
(inStatus == 0xfD))
|
||
|
|
{
|
||
|
|
// Data bytes and undefined.
|
||
|
|
return InvalidType;
|
||
|
|
}
|
||
|
|
if (inStatus < 0xf0)
|
||
|
|
{
|
||
|
|
// Channel message, remove channel nibble.
|
||
|
|
return MidiType(inStatus & 0xf0);
|
||
|
|
}
|
||
|
|
|
||
|
|
return MidiType(inStatus);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! \brief Returns channel in the range 1-16
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
inline Channel MidiInterface<SerialPort, Settings>::getChannelFromStatusByte(byte inStatus)
|
||
|
|
{
|
||
|
|
return (inStatus & 0x0f) + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
bool MidiInterface<SerialPort, Settings>::isChannelMessage(MidiType inType)
|
||
|
|
{
|
||
|
|
return (inType == NoteOff ||
|
||
|
|
inType == NoteOn ||
|
||
|
|
inType == ControlChange ||
|
||
|
|
inType == AfterTouchPoly ||
|
||
|
|
inType == AfterTouchChannel ||
|
||
|
|
inType == PitchBend ||
|
||
|
|
inType == ProgramChange);
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/*! \addtogroup callbacks
|
||
|
|
@{
|
||
|
|
*/
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleNoteOff(void (*fptr)(byte channel, byte note, byte velocity)) { mNoteOffCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleNoteOn(void (*fptr)(byte channel, byte note, byte velocity)) { mNoteOnCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleAfterTouchPoly(void (*fptr)(byte channel, byte note, byte pressure)) { mAfterTouchPolyCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleControlChange(void (*fptr)(byte channel, byte number, byte value)) { mControlChangeCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleProgramChange(void (*fptr)(byte channel, byte number)) { mProgramChangeCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleAfterTouchChannel(void (*fptr)(byte channel, byte pressure)) { mAfterTouchChannelCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandlePitchBend(void (*fptr)(byte channel, int bend)) { mPitchBendCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleSystemExclusive(void (*fptr)(byte* array, unsigned size)) { mSystemExclusiveCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleTimeCodeQuarterFrame(void (*fptr)(byte data)) { mTimeCodeQuarterFrameCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleSongPosition(void (*fptr)(unsigned beats)) { mSongPositionCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleSongSelect(void (*fptr)(byte songnumber)) { mSongSelectCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleTuneRequest(void (*fptr)(void)) { mTuneRequestCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleClock(void (*fptr)(void)) { mClockCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleStart(void (*fptr)(void)) { mStartCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleContinue(void (*fptr)(void)) { mContinueCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleStop(void (*fptr)(void)) { mStopCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleActiveSensing(void (*fptr)(void)) { mActiveSensingCallback = fptr; }
|
||
|
|
template<class SerialPort, class Settings> void MidiInterface<SerialPort, Settings>::setHandleSystemReset(void (*fptr)(void)) { mSystemResetCallback = fptr; }
|
||
|
|
|
||
|
|
/*! \brief Detach an external function from the given type.
|
||
|
|
|
||
|
|
Use this method to cancel the effects of setHandle********.
|
||
|
|
\param inType The type of message to unbind.
|
||
|
|
When a message of this type is received, no function will be called.
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::disconnectCallbackFromType(MidiType inType)
|
||
|
|
{
|
||
|
|
switch (inType)
|
||
|
|
{
|
||
|
|
case NoteOff: mNoteOffCallback = 0; break;
|
||
|
|
case NoteOn: mNoteOnCallback = 0; break;
|
||
|
|
case AfterTouchPoly: mAfterTouchPolyCallback = 0; break;
|
||
|
|
case ControlChange: mControlChangeCallback = 0; break;
|
||
|
|
case ProgramChange: mProgramChangeCallback = 0; break;
|
||
|
|
case AfterTouchChannel: mAfterTouchChannelCallback = 0; break;
|
||
|
|
case PitchBend: mPitchBendCallback = 0; break;
|
||
|
|
case SystemExclusive: mSystemExclusiveCallback = 0; break;
|
||
|
|
case TimeCodeQuarterFrame: mTimeCodeQuarterFrameCallback = 0; break;
|
||
|
|
case SongPosition: mSongPositionCallback = 0; break;
|
||
|
|
case SongSelect: mSongSelectCallback = 0; break;
|
||
|
|
case TuneRequest: mTuneRequestCallback = 0; break;
|
||
|
|
case Clock: mClockCallback = 0; break;
|
||
|
|
case Start: mStartCallback = 0; break;
|
||
|
|
case Continue: mContinueCallback = 0; break;
|
||
|
|
case Stop: mStopCallback = 0; break;
|
||
|
|
case ActiveSensing: mActiveSensingCallback = 0; break;
|
||
|
|
case SystemReset: mSystemResetCallback = 0; break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! @} */ // End of doc group MIDI Callbacks
|
||
|
|
|
||
|
|
// Private - launch callback function based on received type.
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::launchCallback()
|
||
|
|
{
|
||
|
|
// The order is mixed to allow frequent messages to trigger their callback faster.
|
||
|
|
switch (mMessage.type)
|
||
|
|
{
|
||
|
|
// Notes
|
||
|
|
case NoteOff: if (mNoteOffCallback != 0) mNoteOffCallback(mMessage.channel, mMessage.data1, mMessage.data2); break;
|
||
|
|
case NoteOn: if (mNoteOnCallback != 0) mNoteOnCallback(mMessage.channel, mMessage.data1, mMessage.data2); break;
|
||
|
|
|
||
|
|
// Real-time messages
|
||
|
|
case Clock: if (mClockCallback != 0) mClockCallback(); break;
|
||
|
|
case Start: if (mStartCallback != 0) mStartCallback(); break;
|
||
|
|
case Continue: if (mContinueCallback != 0) mContinueCallback(); break;
|
||
|
|
case Stop: if (mStopCallback != 0) mStopCallback(); break;
|
||
|
|
case ActiveSensing: if (mActiveSensingCallback != 0) mActiveSensingCallback(); break;
|
||
|
|
|
||
|
|
// Continuous controllers
|
||
|
|
case ControlChange: if (mControlChangeCallback != 0) mControlChangeCallback(mMessage.channel, mMessage.data1, mMessage.data2); break;
|
||
|
|
case PitchBend: if (mPitchBendCallback != 0) mPitchBendCallback(mMessage.channel, (int)((mMessage.data1 & 0x7f) | ((mMessage.data2 & 0x7f) << 7)) + MIDI_PITCHBEND_MIN); break; // TODO: check this
|
||
|
|
case AfterTouchPoly: if (mAfterTouchPolyCallback != 0) mAfterTouchPolyCallback(mMessage.channel, mMessage.data1, mMessage.data2); break;
|
||
|
|
case AfterTouchChannel: if (mAfterTouchChannelCallback != 0) mAfterTouchChannelCallback(mMessage.channel, mMessage.data1); break;
|
||
|
|
|
||
|
|
case ProgramChange: if (mProgramChangeCallback != 0) mProgramChangeCallback(mMessage.channel, mMessage.data1); break;
|
||
|
|
case SystemExclusive: if (mSystemExclusiveCallback != 0) mSystemExclusiveCallback(mMessage.sysexArray, mMessage.getSysExSize()); break;
|
||
|
|
|
||
|
|
// Occasional messages
|
||
|
|
case TimeCodeQuarterFrame: if (mTimeCodeQuarterFrameCallback != 0) mTimeCodeQuarterFrameCallback(mMessage.data1); break;
|
||
|
|
case SongPosition: if (mSongPositionCallback != 0) mSongPositionCallback((mMessage.data1 & 0x7f) | ((mMessage.data2 & 0x7f) << 7)); break;
|
||
|
|
case SongSelect: if (mSongSelectCallback != 0) mSongSelectCallback(mMessage.data1); break;
|
||
|
|
case TuneRequest: if (mTuneRequestCallback != 0) mTuneRequestCallback(); break;
|
||
|
|
|
||
|
|
case SystemReset: if (mSystemResetCallback != 0) mSystemResetCallback(); break;
|
||
|
|
case InvalidType:
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! @} */ // End of doc group MIDI Input
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
// Thru
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/*! \addtogroup thru
|
||
|
|
@{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*! \brief Set the filter for thru mirroring
|
||
|
|
\param inThruFilterMode a filter mode
|
||
|
|
|
||
|
|
@see MidiFilterMode
|
||
|
|
*/
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::setThruFilterMode(MidiFilterMode inThruFilterMode)
|
||
|
|
{
|
||
|
|
mThruFilterMode = inThruFilterMode;
|
||
|
|
if (mThruFilterMode != Off)
|
||
|
|
mThruActivated = true;
|
||
|
|
else
|
||
|
|
mThruActivated = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
MidiFilterMode MidiInterface<SerialPort, Settings>::getFilterMode() const
|
||
|
|
{
|
||
|
|
return mThruFilterMode;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
bool MidiInterface<SerialPort, Settings>::getThruState() const
|
||
|
|
{
|
||
|
|
return mThruActivated;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::turnThruOn(MidiFilterMode inThruFilterMode)
|
||
|
|
{
|
||
|
|
mThruActivated = true;
|
||
|
|
mThruFilterMode = inThruFilterMode;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::turnThruOff()
|
||
|
|
{
|
||
|
|
mThruActivated = false;
|
||
|
|
mThruFilterMode = Off;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! @} */ // End of doc group MIDI Thru
|
||
|
|
|
||
|
|
// This method is called upon reception of a message
|
||
|
|
// and takes care of Thru filtering and sending.
|
||
|
|
// - All system messages (System Exclusive, Common and Real Time) are passed
|
||
|
|
// to output unless filter is set to Off.
|
||
|
|
// - Channel messages are passed to the output whether their channel
|
||
|
|
// is matching the input channel and the filter setting
|
||
|
|
template<class SerialPort, class Settings>
|
||
|
|
void MidiInterface<SerialPort, Settings>::thruFilter(Channel inChannel)
|
||
|
|
{
|
||
|
|
// If the feature is disabled, don't do anything.
|
||
|
|
if (!mThruActivated || (mThruFilterMode == Off))
|
||
|
|
return;
|
||
|
|
|
||
|
|
// First, check if the received message is Channel
|
||
|
|
if (mMessage.type >= NoteOff && mMessage.type <= PitchBend)
|
||
|
|
{
|
||
|
|
const bool filter_condition = ((mMessage.channel == mInputChannel) ||
|
||
|
|
(mInputChannel == MIDI_CHANNEL_OMNI));
|
||
|
|
|
||
|
|
// Now let's pass it to the output
|
||
|
|
switch (mThruFilterMode)
|
||
|
|
{
|
||
|
|
case Full:
|
||
|
|
send(mMessage.type,
|
||
|
|
mMessage.data1,
|
||
|
|
mMessage.data2,
|
||
|
|
mMessage.channel);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case SameChannel:
|
||
|
|
if (filter_condition)
|
||
|
|
{
|
||
|
|
send(mMessage.type,
|
||
|
|
mMessage.data1,
|
||
|
|
mMessage.data2,
|
||
|
|
mMessage.channel);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DifferentChannel:
|
||
|
|
if (!filter_condition)
|
||
|
|
{
|
||
|
|
send(mMessage.type,
|
||
|
|
mMessage.data1,
|
||
|
|
mMessage.data2,
|
||
|
|
mMessage.channel);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Off:
|
||
|
|
// Do nothing.
|
||
|
|
// Technically it's impossible to get there because
|
||
|
|
// the case was already tested earlier.
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Send the message to the output
|
||
|
|
switch (mMessage.type)
|
||
|
|
{
|
||
|
|
// Real Time and 1 byte
|
||
|
|
case Clock:
|
||
|
|
case Start:
|
||
|
|
case Stop:
|
||
|
|
case Continue:
|
||
|
|
case ActiveSensing:
|
||
|
|
case SystemReset:
|
||
|
|
case TuneRequest:
|
||
|
|
sendRealTime(mMessage.type);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case SystemExclusive:
|
||
|
|
// Send SysEx (0xf0 and 0xf7 are included in the buffer)
|
||
|
|
sendSysEx(getSysExArrayLength(), getSysExArray(), true);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case SongSelect:
|
||
|
|
sendSongSelect(mMessage.data1);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case SongPosition:
|
||
|
|
sendSongPosition(mMessage.data1 | ((unsigned)mMessage.data2 << 7));
|
||
|
|
break;
|
||
|
|
|
||
|
|
case TimeCodeQuarterFrame:
|
||
|
|
sendTimeCodeQuarterFrame(mMessage.data1,mMessage.data2);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
END_MIDI_NAMESPACE
|