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/*
* Mixer.cs
* Copyright © 2010-2011 kbinani
*
* This file is part of org.kbinani.cadencii.
*
* org.kbinani.cadencii is free software; you can redistribute it and/or
* modify it under the terms of the GPLv3 License.
*
* org.kbinani.cadencii is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#if JAVA
package org.kbinani.cadencii;
import java.awt.*;
import java.util.*;
import org.kbinani.*;
#else
using System;
using org.kbinani.java.awt;
using org.kbinani.java.util;
namespace org.kbinani.cadencii {
#endif
#if JAVA
public class Mixer extends WaveUnit implements WaveSender, WaveReceiver {
#else
public class Mixer : WaveUnit, WaveSender, WaveReceiver {
#endif
private const int BUFLEN = 1024;
private WaveReceiver mReceiver = null;
private Vector<WaveSender> mSenders = new Vector<WaveSender>();
private double[] mBufferL = new double[BUFLEN];
private double[] mBufferR = new double[BUFLEN];
private double[] mBuffer2L = new double[BUFLEN];
private double[] mBuffer2R = new double[BUFLEN];
private int mVersion = 0;
public override int getVersion()
{
return mVersion;
}
public override void setConfig( String parameter ) {
// do nothing
}
public void push( double[] l, double[] r, int length ) {
int remain = length;
int offset = 0;
while ( remain > 0 ) {
int amount = (remain > BUFLEN) ? BUFLEN : remain;
for ( int i = 0; i < BUFLEN; i++ ) {
mBufferL[i] = l[i + offset];
mBufferR[i] = r[i + offset];
}
foreach ( WaveSender s in mSenders ) {
s.pull( mBuffer2L, mBuffer2R, amount );
for ( int i = 0; i < BUFLEN; i++ ) {
mBufferL[i] += mBuffer2L[i];
mBufferR[i] += mBuffer2R[i];
}
}
if ( mReceiver != null ) {
mReceiver.push( mBufferL, mBufferR, amount );
}
remain -= amount;
offset += amount;
}
}
public void pull( double[] l, double[] r, int length ) {
int remain = length;
int offset = 0;
while ( remain > 0 ) {
int amount = (remain > BUFLEN) ? BUFLEN : remain;
for ( int i = 0; i < amount; i++ ) {
mBuffer2L[i] = 0.0;
mBuffer2R[i] = 0.0;
}
foreach ( WaveSender s in mSenders ) {
if ( s == null ) {
continue;
}
s.pull( mBufferL, mBufferR, amount );
for ( int i = 0; i < amount; i++ ) {
mBuffer2L[i] += mBufferL[i];
mBuffer2R[i] += mBufferR[i];
}
}
if ( mReceiver != null ) {
mReceiver.push( mBuffer2L, mBuffer2R, amount );
}
for ( int i = 0; i < amount; i++ ) {
l[i + offset] = mBuffer2L[i];
r[i + offset] = mBuffer2R[i];
}
remain -= amount;
offset += amount;
}
}
public void setReceiver( WaveReceiver r ) {
if ( mReceiver != null ) {
mReceiver.end();
}
mReceiver = r;
}
public void setSender( WaveSender s ) {
addSender( s );
}
public void end() {
if ( mReceiver != null ) {
mReceiver.end();
}
foreach ( WaveSender s in mSenders ) {
if ( s != null ) {
s.end();
}
}
}
public void addSender( WaveSender s ) {
if ( s == null ) {
return;
}
if ( !mSenders.contains( s ) ) {
mSenders.add( s );
#if DEBUG
sout.println( "Mixer#addSender; sender added" );
#endif
} else {
#if DEBUG
sout.println( "Mixer#addSender; sender NOT added" );
#endif
}
}
}
#if !JAVA
}
#endif
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