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/*
* Copyright 2009 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.ports;
import java.io.PrintStream;
import com.jsyn.Synthesizer;
import com.jsyn.unitgen.UnitGenerator;
/**
* A UnitInputPort has an array of these, one for each part.
*
* @author Phil Burk 2009 Mobileer Inc
*/
public class InputMixingBlockPart extends PortBlockPart {
private double[] mixer = new double[Synthesizer.FRAMES_PER_BLOCK];
private double current;
private UnitInputPort unitInputPort;
InputMixingBlockPart(UnitInputPort unitInputPort, double defaultValue) {
super(unitInputPort, defaultValue);
this.unitInputPort = unitInputPort;
}
@Override
public double getValue() {
return current;
}
@Override
protected void setValue(double value) {
current = value;
super.setValue(value);
}
@Override
public double[] getValues() {
double[] result;
int numConnections = getConnectionCount();
// System.out.println("numConnection = " + numConnections + " for " +
// this );
if (numConnections == 0) {
// No connection so just use our own data.
result = super.getValues();
} else {
// Mix all of the connected ports.
double[] inputs;
int jCon = 0;
PortBlockPart otherPart;
// Choose value to initialize the mixer array.
if (unitInputPort.isValueAdded()) {
inputs = super.getValues(); // prime mixer with the set() values
jCon = 0;
} else {
otherPart = getConnection(jCon);
inputs = otherPart.getValues(); // prime mixer with first connected
jCon = 1;
}
for (int i = 0; i < mixer.length; i++) {
mixer[i] = inputs[i];
}
// Now mix in the remaining inputs.
for (; jCon < numConnections; jCon++) {
otherPart = getConnection(jCon);
inputs = otherPart.getValues();
for (int i = 0; i < mixer.length; i++) {
mixer[i] += inputs[i];
}
}
result = mixer;
}
current = result[0];
return result;
}
private void printIndentation(PrintStream out, int level) {
for (int i = 0; i < level; i++) {
out.print(" ");
}
}
private String portToString(UnitBlockPort port) {
UnitGenerator ugen = port.getUnitGenerator();
return ugen.getClass().getSimpleName() + "." + port.getName();
}
public void printConnections(PrintStream out, int level) {
for (int i = 0; i < getConnectionCount(); i++) {
PortBlockPart part = getConnection(i);
printIndentation(out, level);
out.println(portToString(getPort()) + " <--- " + portToString(part.getPort()));
part.getPort().getUnitGenerator().printConnections(out, level + 1);
}
}
}
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