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-rw-r--r--src/com/jsyn/midi/MessageParser.java90
1 files changed, 85 insertions, 5 deletions
diff --git a/src/com/jsyn/midi/MessageParser.java b/src/com/jsyn/midi/MessageParser.java
index 43d10c8..d0f5d4d 100644
--- a/src/com/jsyn/midi/MessageParser.java
+++ b/src/com/jsyn/midi/MessageParser.java
@@ -4,9 +4,9 @@
* 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.
@@ -18,10 +18,15 @@ 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;
@@ -41,27 +46,102 @@ public class MessageParser {
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:
- controlChange(channel, message[1], message[2]);
+ rawControlChange(channel, message[1], message[2]);
+ break;
+
+ case MidiConstants.PROGRAM_CHANGE:
+ programChange(channel, message[1]);
break;
case MidiConstants.PITCH_BEND:
- int bend = (((message[2]) & 0x007F) << 7) + ((message[1]) & 0x007F);
+ 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) {
}
}