diff options
Diffstat (limited to 'src/com/jsyn/midi')
-rw-r--r-- | src/com/jsyn/midi/MessageParser.java | 147 | ||||
-rw-r--r-- | src/com/jsyn/midi/MidiConstants.java | 84 | ||||
-rw-r--r-- | src/com/jsyn/midi/MidiSynthesizer.java | 118 |
3 files changed, 0 insertions, 349 deletions
diff --git a/src/com/jsyn/midi/MessageParser.java b/src/com/jsyn/midi/MessageParser.java deleted file mode 100644 index d0f5d4d..0000000 --- a/src/com/jsyn/midi/MessageParser.java +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright 2010 Phil Burk, Mobileer Inc - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.jsyn.midi; - -/** - * Parse the message and call the appropriate method to handle it. - * - * @author Phil Burk (C) 2010 Mobileer Inc - */ -public class MessageParser { - private int[] parameterIndices = new int[MidiConstants.MAX_CHANNELS]; - private int[] parameterValues = new int[MidiConstants.MAX_CHANNELS]; - private int BIT_NON_RPM = 1 << 14; - private int MASK_14BIT = (1 << 14) - 1; - - public void parse(byte[] message) { - int status = message[0]; - int command = status & 0xF0; - int channel = status & 0x0F; - - switch (command) { - case MidiConstants.NOTE_ON: - int velocity = message[2]; - if (velocity == 0) { - noteOff(channel, message[1], velocity); - } else { - noteOn(channel, message[1], velocity); - } - break; - - case MidiConstants.NOTE_OFF: - noteOff(channel, message[1], message[2]); - break; - - case MidiConstants.POLYPHONIC_AFTERTOUCH: - polyphonicAftertouch(channel, message[1], message[2]); - break; - - case MidiConstants.CHANNEL_PRESSURE: - channelPressure(channel, message[1]); - break; - - case MidiConstants.CONTROL_CHANGE: - rawControlChange(channel, message[1], message[2]); - break; - - case MidiConstants.PROGRAM_CHANGE: - programChange(channel, message[1]); - break; - - case MidiConstants.PITCH_BEND: - int bend = (message[2] << 7) + message[1]; - pitchBend(channel, bend); - break; - } - - } - - public void rawControlChange(int channel, int index, int value) { - int paramIndex; - int paramValue; - switch(index) { - case MidiConstants.CONTROLLER_DATA_ENTRY: - parameterValues[channel] = value << 7; - fireParameterChange(channel); - break; - case MidiConstants.CONTROLLER_DATA_ENTRY_LSB: - paramValue = parameterValues[channel] & ~0x7F; - paramValue |= value; - parameterValues[channel] = paramValue; - fireParameterChange(channel); - break; - case MidiConstants.CONTROLLER_NRPN_LSB: - paramIndex = parameterIndices[channel] & ~0x7F; - paramIndex |= value | BIT_NON_RPM; - parameterIndices[channel] = paramIndex; - break; - case MidiConstants.CONTROLLER_NRPN_MSB: - parameterIndices[channel] = (value << 7) | BIT_NON_RPM;; - break; - case MidiConstants.CONTROLLER_RPN_LSB: - paramIndex = parameterIndices[channel] & ~0x7F; - paramIndex |= value; - parameterIndices[channel] = paramIndex; - break; - case MidiConstants.CONTROLLER_RPN_MSB: - parameterIndices[channel] = value << 7; - break; - default: - controlChange(channel, index, value); - break; - - } - } - - private void fireParameterChange(int channel) { - int paramIndex; - paramIndex = parameterIndices[channel]; - if ((paramIndex & BIT_NON_RPM) == 0) { - registeredParameter(channel, paramIndex, parameterValues[channel]); - } else { - nonRegisteredParameter(channel, paramIndex & MASK_14BIT, parameterValues[channel]); - } - } - - public void nonRegisteredParameter(int channel, int index14, int value14) { - } - - public void registeredParameter(int channel, int index14, int value14) { - } - - public void pitchBend(int channel, int bend) { - } - - public void programChange(int channel, int program) { - } - - public void polyphonicAftertouch(int channel, int pitch, int pressure) { - } - - public void channelPressure(int channel, int pressure) { - } - - public void controlChange(int channel, int index, int value) { - } - - public void noteOn(int channel, int pitch, int velocity) { - } - - // If a NOTE_ON with zero velocity is received then noteOff will be called. - public void noteOff(int channel, int pitch, int velocity) { - } -} diff --git a/src/com/jsyn/midi/MidiConstants.java b/src/com/jsyn/midi/MidiConstants.java deleted file mode 100644 index 8c92119..0000000 --- a/src/com/jsyn/midi/MidiConstants.java +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Copyright 2010 Phil Burk, Mobileer Inc - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.jsyn.midi; - -/** - * Constants that define the MIDI standard. - * - * @author Phil Burk (C) 2010 Mobileer Inc - */ -public class MidiConstants { - - public static final int MAX_CHANNELS = 16; - // Basic commands. - public static final int NOTE_OFF = 0x80; - public static final int NOTE_ON = 0x90; - public static final int POLYPHONIC_AFTERTOUCH = 0xA0; - public static final int CONTROL_CHANGE = 0xB0; - public static final int PROGRAM_CHANGE = 0xC0; - public static final int CHANNEL_AFTERTOUCH = 0xD0; - public static final int CHANNEL_PRESSURE = CHANNEL_AFTERTOUCH; - public static final int PITCH_BEND = 0xE0; - public static final int SYSTEM_COMMON = 0xF0; - - public static final int PITCH_BEND_CENTER = 0x2000; - - public static final int CONTROLLER_BANK_SELECT = 0; - public static final int CONTROLLER_MOD_WHEEL = 1; - public static final int CONTROLLER_BREATH = 2; - public static final int CONTROLLER_DATA_ENTRY = 6; - public static final int CONTROLLER_VOLUME = 7; - public static final int CONTROLLER_PAN = 10; - - public static final int CONTROLLER_LSB_OFFSET = 32; - public static final int CONTROLLER_DATA_ENTRY_LSB = CONTROLLER_DATA_ENTRY + CONTROLLER_LSB_OFFSET; - - public static final int CONTROLLER_TIMBRE = 74; // Often used by MPE for Y axis control. - - public static final int CONTROLLER_DATA_INCREMENT = 96; - public static final int CONTROLLER_DATA_DECREMENT = 97; - public static final int CONTROLLER_NRPN_LSB = 98; - public static final int CONTROLLER_NRPN_MSB = 99; - public static final int CONTROLLER_RPN_LSB = 100; - public static final int CONTROLLER_RPN_MSB = 101; - - public static final int RPN_BEND_RANGE = 0; - public static final int RPN_FINE_TUNING = 1; - - public static final String PITCH_NAMES[] = { - "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" - }; - - /** - * Calculate frequency in Hertz based on MIDI pitch. Middle C is 60.0. You can use fractional - * pitches so 60.5 would give you a pitch half way between C and C#. - */ - static final double CONCERT_A_FREQUENCY = 440.0; - static final double CONCERT_A_PITCH = 69.0; - - public static double convertPitchToFrequency(double pitch) { - return CONCERT_A_FREQUENCY * Math.pow(2.0, ((pitch - CONCERT_A_PITCH) / 12.0)); - } - - /** - * Calculate MIDI pitch based on frequency in Hertz. Middle C is 60.0. - */ - public static double convertFrequencyToPitch(double frequency) { - return CONCERT_A_PITCH + (12 * Math.log(frequency / CONCERT_A_FREQUENCY) / Math.log(2.0)); - } - -} diff --git a/src/com/jsyn/midi/MidiSynthesizer.java b/src/com/jsyn/midi/MidiSynthesizer.java deleted file mode 100644 index 30204b0..0000000 --- a/src/com/jsyn/midi/MidiSynthesizer.java +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Copyright 2016 Phil Burk, Mobileer Inc - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.jsyn.midi; - -import com.jsyn.instruments.DualOscillatorSynthVoice; -import com.jsyn.util.MultiChannelSynthesizer; - -/** - * Map MIDI messages into calls to a MultiChannelSynthesizer. - * Handles CONTROLLER_MOD_WHEEL, TIMBRE, VOLUME and PAN. - * Handles Bend Range RPN. - * - * <pre><code> - voiceDescription = DualOscillatorSynthVoice.getVoiceDescription(); - multiSynth = new MultiChannelSynthesizer(); - final int startChannel = 0; - multiSynth.setup(synth, startChannel, NUM_CHANNELS, VOICES_PER_CHANNEL, voiceDescription); - midiSynthesizer = new MidiSynthesizer(multiSynth); - // pass MIDI bytes - midiSynthesizer.onReceive(bytes, 0, bytes.length); - </code></pre> - * - * See the example UseMidiKeyboard.java - * - * @author Phil Burk (C) 2016 Mobileer Inc - */ -public class MidiSynthesizer extends MessageParser { - - private MultiChannelSynthesizer multiSynth; - - public MidiSynthesizer(MultiChannelSynthesizer multiSynth) { - this.multiSynth = multiSynth; - } - - @Override - public void controlChange(int channel, int index, int value) { - //System.out.println("controlChange(" + channel + ", " + index + ", " + value + ")"); - double normalized = value * (1.0 / 127.0); - switch (index) { - case MidiConstants.CONTROLLER_MOD_WHEEL: - double vibratoDepth = 0.1 * normalized; - System.out.println( "vibratoDepth = " + vibratoDepth ); - multiSynth.setVibratoDepth(channel, vibratoDepth); - break; - case MidiConstants.CONTROLLER_TIMBRE: - multiSynth.setTimbre(channel, normalized); - break; - case MidiConstants.CONTROLLER_VOLUME: - multiSynth.setVolume(channel, normalized); - break; - case MidiConstants.CONTROLLER_PAN: - // convert to -1 to +1 range - multiSynth.setPan(channel, (normalized * 2.0) - 1.0); - break; - } - } - - @Override - public void registeredParameter(int channel, int index14, int value14) { - switch(index14) { - case MidiConstants.RPN_BEND_RANGE: - int semitones = value14 >> 7; - int cents = value14 & 0x7F; - double bendRange = semitones + (cents * 0.01); - multiSynth.setBendRange(channel, bendRange); - break; - default: - break; - } - } - - @Override - public void programChange(int channel, int program) { - multiSynth.programChange(channel, program); - } - - @Override - public void channelPressure(int channel, int value) { - double normalized = value * (1.0 / 127.0); - multiSynth.setPressure(channel, normalized); - } - - @Override - public void noteOff(int channel, int noteNumber, int velocity) { - multiSynth.noteOff(channel, noteNumber, velocity); - } - - @Override - public void noteOn(int channel, int noteNumber, int velocity) { - multiSynth.noteOn(channel, noteNumber, velocity); - } - - @Override - public void pitchBend(int channel, int bend) { - double offset = (bend - MidiConstants.PITCH_BEND_CENTER) - * (1.0 / (MidiConstants.PITCH_BEND_CENTER)); - multiSynth.setPitchBend(channel, offset); - } - - public void onReceive(byte[] bytes, int i, int length) { - parse(bytes); // TODO - } - -} |