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Java example source code file (SoftMainMixer.java)
This example Java source code file (SoftMainMixer.java) is included in the alvinalexander.com
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The SoftMainMixer.java Java example source code
/*
* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.media.sound;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeMap;
import java.util.Map.Entry;
import javax.sound.midi.MidiMessage;
import javax.sound.midi.Patch;
import javax.sound.midi.ShortMessage;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
/**
* Software synthesizer main audio mixer.
*
* @author Karl Helgason
*/
public final class SoftMainMixer {
// A private class thats contains a ModelChannelMixer and it's private buffers.
// This becomes necessary when we want to have separate delay buffers for each channel mixer.
private class SoftChannelMixerContainer
{
ModelChannelMixer mixer;
SoftAudioBuffer[] buffers;
}
public final static int CHANNEL_LEFT = 0;
public final static int CHANNEL_RIGHT = 1;
public final static int CHANNEL_MONO = 2;
public final static int CHANNEL_DELAY_LEFT = 3;
public final static int CHANNEL_DELAY_RIGHT = 4;
public final static int CHANNEL_DELAY_MONO = 5;
public final static int CHANNEL_EFFECT1 = 6;
public final static int CHANNEL_EFFECT2 = 7;
public final static int CHANNEL_DELAY_EFFECT1 = 8;
public final static int CHANNEL_DELAY_EFFECT2 = 9;
public final static int CHANNEL_LEFT_DRY = 10;
public final static int CHANNEL_RIGHT_DRY = 11;
public final static int CHANNEL_SCRATCH1 = 12;
public final static int CHANNEL_SCRATCH2 = 13;
boolean active_sensing_on = false;
private long msec_last_activity = -1;
private boolean pusher_silent = false;
private int pusher_silent_count = 0;
private long sample_pos = 0;
boolean readfully = true;
private final Object control_mutex;
private SoftSynthesizer synth;
private float samplerate = 44100;
private int nrofchannels = 2;
private SoftVoice[] voicestatus = null;
private SoftAudioBuffer[] buffers;
private SoftReverb reverb;
private SoftAudioProcessor chorus;
private SoftAudioProcessor agc;
private long msec_buffer_len = 0;
private int buffer_len = 0;
TreeMap<Long, Object> midimessages = new TreeMap();
private int delay_midievent = 0;
private int max_delay_midievent = 0;
double last_volume_left = 1.0;
double last_volume_right = 1.0;
private double[] co_master_balance = new double[1];
private double[] co_master_volume = new double[1];
private double[] co_master_coarse_tuning = new double[1];
private double[] co_master_fine_tuning = new double[1];
private AudioInputStream ais;
private Set<SoftChannelMixerContainer> registeredMixers = null;
private Set<ModelChannelMixer> stoppedMixers = null;
private SoftChannelMixerContainer[] cur_registeredMixers = null;
SoftControl co_master = new SoftControl() {
double[] balance = co_master_balance;
double[] volume = co_master_volume;
double[] coarse_tuning = co_master_coarse_tuning;
double[] fine_tuning = co_master_fine_tuning;
public double[] get(int instance, String name) {
if (name == null)
return null;
if (name.equals("balance"))
return balance;
if (name.equals("volume"))
return volume;
if (name.equals("coarse_tuning"))
return coarse_tuning;
if (name.equals("fine_tuning"))
return fine_tuning;
return null;
}
};
private void processSystemExclusiveMessage(byte[] data) {
synchronized (synth.control_mutex) {
activity();
// Universal Non-Real-Time SysEx
if ((data[1] & 0xFF) == 0x7E) {
int deviceID = data[2] & 0xFF;
if (deviceID == 0x7F || deviceID == synth.getDeviceID()) {
int subid1 = data[3] & 0xFF;
int subid2;
switch (subid1) {
case 0x08: // MIDI Tuning Standard
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x01: // BULK TUNING DUMP
{
// http://www.midi.org/about-midi/tuning.shtml
SoftTuning tuning = synth.getTuning(new Patch(0,
data[5] & 0xFF));
tuning.load(data);
break;
}
case 0x04: // KEY-BASED TUNING DUMP
case 0x05: // SCALE/OCTAVE TUNING DUMP, 1 byte format
case 0x06: // SCALE/OCTAVE TUNING DUMP, 2 byte format
case 0x07: // SINGLE NOTE TUNING CHANGE (NON REAL-TIME)
// (BANK)
{
// http://www.midi.org/about-midi/tuning_extens.shtml
SoftTuning tuning = synth.getTuning(new Patch(
data[5] & 0xFF, data[6] & 0xFF));
tuning.load(data);
break;
}
case 0x08: // scale/octave tuning 1-byte form (Non
// Real-Time)
case 0x09: // scale/octave tuning 2-byte form (Non
// Real-Time)
{
// http://www.midi.org/about-midi/tuning-scale.shtml
SoftTuning tuning = new SoftTuning(data);
int channelmask = (data[5] & 0xFF) * 16384
+ (data[6] & 0xFF) * 128 + (data[7] & 0xFF);
SoftChannel[] channels = synth.channels;
for (int i = 0; i < channels.length; i++)
if ((channelmask & (1 << i)) != 0)
channels[i].tuning = tuning;
break;
}
default:
break;
}
break;
case 0x09: // General Midi Message
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x01: // General Midi 1 On
synth.setGeneralMidiMode(1);
reset();
break;
case 0x02: // General Midi Off
synth.setGeneralMidiMode(0);
reset();
break;
case 0x03: // General MidI Level 2 On
synth.setGeneralMidiMode(2);
reset();
break;
default:
break;
}
break;
case 0x0A: // DLS Message
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x01: // DLS On
if (synth.getGeneralMidiMode() == 0)
synth.setGeneralMidiMode(1);
synth.voice_allocation_mode = 1;
reset();
break;
case 0x02: // DLS Off
synth.setGeneralMidiMode(0);
synth.voice_allocation_mode = 0;
reset();
break;
case 0x03: // DLS Static Voice Allocation Off
synth.voice_allocation_mode = 0;
break;
case 0x04: // DLS Static Voice Allocation On
synth.voice_allocation_mode = 1;
break;
default:
break;
}
break;
default:
break;
}
}
}
// Universal Real-Time SysEx
if ((data[1] & 0xFF) == 0x7F) {
int deviceID = data[2] & 0xFF;
if (deviceID == 0x7F || deviceID == synth.getDeviceID()) {
int subid1 = data[3] & 0xFF;
int subid2;
switch (subid1) {
case 0x04: // Device Control
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x01: // Master Volume
case 0x02: // Master Balane
case 0x03: // Master fine tuning
case 0x04: // Master coarse tuning
int val = (data[5] & 0x7F)
+ ((data[6] & 0x7F) * 128);
if (subid2 == 0x01)
setVolume(val);
else if (subid2 == 0x02)
setBalance(val);
else if (subid2 == 0x03)
setFineTuning(val);
else if (subid2 == 0x04)
setCoarseTuning(val);
break;
case 0x05: // Global Parameter Control
int ix = 5;
int slotPathLen = (data[ix++] & 0xFF);
int paramWidth = (data[ix++] & 0xFF);
int valueWidth = (data[ix++] & 0xFF);
int[] slotPath = new int[slotPathLen];
for (int i = 0; i < slotPathLen; i++) {
int msb = (data[ix++] & 0xFF);
int lsb = (data[ix++] & 0xFF);
slotPath[i] = msb * 128 + lsb;
}
int paramCount = (data.length - 1 - ix)
/ (paramWidth + valueWidth);
long[] params = new long[paramCount];
long[] values = new long[paramCount];
for (int i = 0; i < paramCount; i++) {
values[i] = 0;
for (int j = 0; j < paramWidth; j++)
params[i] = params[i] * 128
+ (data[ix++] & 0xFF);
for (int j = 0; j < valueWidth; j++)
values[i] = values[i] * 128
+ (data[ix++] & 0xFF);
}
globalParameterControlChange(slotPath, params, values);
break;
default:
break;
}
break;
case 0x08: // MIDI Tuning Standard
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x02: // SINGLE NOTE TUNING CHANGE (REAL-TIME)
{
// http://www.midi.org/about-midi/tuning.shtml
SoftTuning tuning = synth.getTuning(new Patch(0,
data[5] & 0xFF));
tuning.load(data);
SoftVoice[] voices = synth.getVoices();
for (int i = 0; i < voices.length; i++)
if (voices[i].active)
if (voices[i].tuning == tuning)
voices[i].updateTuning(tuning);
break;
}
case 0x07: // SINGLE NOTE TUNING CHANGE (REAL-TIME)
// (BANK)
{
// http://www.midi.org/about-midi/tuning_extens.shtml
SoftTuning tuning = synth.getTuning(new Patch(
data[5] & 0xFF, data[6] & 0xFF));
tuning.load(data);
SoftVoice[] voices = synth.getVoices();
for (int i = 0; i < voices.length; i++)
if (voices[i].active)
if (voices[i].tuning == tuning)
voices[i].updateTuning(tuning);
break;
}
case 0x08: // scale/octave tuning 1-byte form
//(Real-Time)
case 0x09: // scale/octave tuning 2-byte form
// (Real-Time)
{
// http://www.midi.org/about-midi/tuning-scale.shtml
SoftTuning tuning = new SoftTuning(data);
int channelmask = (data[5] & 0xFF) * 16384
+ (data[6] & 0xFF) * 128 + (data[7] & 0xFF);
SoftChannel[] channels = synth.channels;
for (int i = 0; i < channels.length; i++)
if ((channelmask & (1 << i)) != 0)
channels[i].tuning = tuning;
SoftVoice[] voices = synth.getVoices();
for (int i = 0; i < voices.length; i++)
if (voices[i].active)
if ((channelmask & (1 << (voices[i].channel))) != 0)
voices[i].updateTuning(tuning);
break;
}
default:
break;
}
break;
case 0x09: // Control Destination Settings
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x01: // Channel Pressure
{
int[] destinations = new int[(data.length - 7) / 2];
int[] ranges = new int[(data.length - 7) / 2];
int ix = 0;
for (int j = 6; j < data.length - 1; j += 2) {
destinations[ix] = data[j] & 0xFF;
ranges[ix] = data[j + 1] & 0xFF;
ix++;
}
int channel = data[5] & 0xFF;
SoftChannel softchannel = synth.channels[channel];
softchannel.mapChannelPressureToDestination(
destinations, ranges);
break;
}
case 0x02: // Poly Pressure
{
int[] destinations = new int[(data.length - 7) / 2];
int[] ranges = new int[(data.length - 7) / 2];
int ix = 0;
for (int j = 6; j < data.length - 1; j += 2) {
destinations[ix] = data[j] & 0xFF;
ranges[ix] = data[j + 1] & 0xFF;
ix++;
}
int channel = data[5] & 0xFF;
SoftChannel softchannel = synth.channels[channel];
softchannel.mapPolyPressureToDestination(
destinations, ranges);
break;
}
case 0x03: // Control Change
{
int[] destinations = new int[(data.length - 7) / 2];
int[] ranges = new int[(data.length - 7) / 2];
int ix = 0;
for (int j = 7; j < data.length - 1; j += 2) {
destinations[ix] = data[j] & 0xFF;
ranges[ix] = data[j + 1] & 0xFF;
ix++;
}
int channel = data[5] & 0xFF;
SoftChannel softchannel = synth.channels[channel];
int control = data[6] & 0xFF;
softchannel.mapControlToDestination(control,
destinations, ranges);
break;
}
default:
break;
}
break;
case 0x0A: // Key Based Instrument Control
{
subid2 = data[4] & 0xFF;
switch (subid2) {
case 0x01: // Basic Message
int channel = data[5] & 0xFF;
int keynumber = data[6] & 0xFF;
SoftChannel softchannel = synth.channels[channel];
for (int j = 7; j < data.length - 1; j += 2) {
int controlnumber = data[j] & 0xFF;
int controlvalue = data[j + 1] & 0xFF;
softchannel.controlChangePerNote(keynumber,
controlnumber, controlvalue);
}
break;
default:
break;
}
break;
}
default:
break;
}
}
}
}
}
private void processMessages(long timeStamp) {
Iterator<Entry iter = midimessages.entrySet().iterator();
while (iter.hasNext()) {
Entry<Long, Object> entry = iter.next();
if (entry.getKey() >= (timeStamp + msec_buffer_len))
return;
long msec_delay = entry.getKey() - timeStamp;
delay_midievent = (int)(msec_delay * (samplerate / 1000000.0) + 0.5);
if(delay_midievent > max_delay_midievent)
delay_midievent = max_delay_midievent;
if(delay_midievent < 0)
delay_midievent = 0;
processMessage(entry.getValue());
iter.remove();
}
delay_midievent = 0;
}
void processAudioBuffers() {
if(synth.weakstream != null && synth.weakstream.silent_samples != 0)
{
sample_pos += synth.weakstream.silent_samples;
synth.weakstream.silent_samples = 0;
}
for (int i = 0; i < buffers.length; i++) {
if(i != CHANNEL_DELAY_LEFT &&
i != CHANNEL_DELAY_RIGHT &&
i != CHANNEL_DELAY_MONO &&
i != CHANNEL_DELAY_EFFECT1 &&
i != CHANNEL_DELAY_EFFECT2)
buffers[i].clear();
}
if(!buffers[CHANNEL_DELAY_LEFT].isSilent())
{
buffers[CHANNEL_LEFT].swap(buffers[CHANNEL_DELAY_LEFT]);
}
if(!buffers[CHANNEL_DELAY_RIGHT].isSilent())
{
buffers[CHANNEL_RIGHT].swap(buffers[CHANNEL_DELAY_RIGHT]);
}
if(!buffers[CHANNEL_DELAY_MONO].isSilent())
{
buffers[CHANNEL_MONO].swap(buffers[CHANNEL_DELAY_MONO]);
}
if(!buffers[CHANNEL_DELAY_EFFECT1].isSilent())
{
buffers[CHANNEL_EFFECT1].swap(buffers[CHANNEL_DELAY_EFFECT1]);
}
if(!buffers[CHANNEL_DELAY_EFFECT2].isSilent())
{
buffers[CHANNEL_EFFECT2].swap(buffers[CHANNEL_DELAY_EFFECT2]);
}
double volume_left;
double volume_right;
SoftChannelMixerContainer[] act_registeredMixers;
// perform control logic
synchronized (control_mutex) {
long msec_pos = (long)(sample_pos * (1000000.0 / samplerate));
processMessages(msec_pos);
if (active_sensing_on) {
// Active Sensing
// if no message occurs for max 1000 ms
// then do AllSoundOff on all channels
if ((msec_pos - msec_last_activity) > 1000000) {
active_sensing_on = false;
for (SoftChannel c : synth.channels)
c.allSoundOff();
}
}
for (int i = 0; i < voicestatus.length; i++)
if (voicestatus[i].active)
voicestatus[i].processControlLogic();
sample_pos += buffer_len;
double volume = co_master_volume[0];
volume_left = volume;
volume_right = volume;
double balance = co_master_balance[0];
if (balance > 0.5)
volume_left *= (1 - balance) * 2;
else
volume_right *= balance * 2;
chorus.processControlLogic();
reverb.processControlLogic();
agc.processControlLogic();
if (cur_registeredMixers == null) {
if (registeredMixers != null) {
cur_registeredMixers =
new SoftChannelMixerContainer[registeredMixers.size()];
registeredMixers.toArray(cur_registeredMixers);
}
}
act_registeredMixers = cur_registeredMixers;
if (act_registeredMixers != null)
if (act_registeredMixers.length == 0)
act_registeredMixers = null;
}
if (act_registeredMixers != null) {
// Make backup of left,right,mono channels
SoftAudioBuffer leftbak = buffers[CHANNEL_LEFT];
SoftAudioBuffer rightbak = buffers[CHANNEL_RIGHT];
SoftAudioBuffer monobak = buffers[CHANNEL_MONO];
SoftAudioBuffer delayleftbak = buffers[CHANNEL_DELAY_LEFT];
SoftAudioBuffer delayrightbak = buffers[CHANNEL_DELAY_RIGHT];
SoftAudioBuffer delaymonobak = buffers[CHANNEL_DELAY_MONO];
int bufferlen = buffers[CHANNEL_LEFT].getSize();
float[][] cbuffer = new float[nrofchannels][];
float[][] obuffer = new float[nrofchannels][];
obuffer[0] = leftbak.array();
if (nrofchannels != 1)
obuffer[1] = rightbak.array();
for (SoftChannelMixerContainer cmixer : act_registeredMixers) {
// Reroute default left,right output
// to channelmixer left,right input/output
buffers[CHANNEL_LEFT] = cmixer.buffers[CHANNEL_LEFT];
buffers[CHANNEL_RIGHT] = cmixer.buffers[CHANNEL_RIGHT];
buffers[CHANNEL_MONO] = cmixer.buffers[CHANNEL_MONO];
buffers[CHANNEL_DELAY_LEFT] = cmixer.buffers[CHANNEL_DELAY_LEFT];
buffers[CHANNEL_DELAY_RIGHT] = cmixer.buffers[CHANNEL_DELAY_RIGHT];
buffers[CHANNEL_DELAY_MONO] = cmixer.buffers[CHANNEL_DELAY_MONO];
buffers[CHANNEL_LEFT].clear();
buffers[CHANNEL_RIGHT].clear();
buffers[CHANNEL_MONO].clear();
if(!buffers[CHANNEL_DELAY_LEFT].isSilent())
{
buffers[CHANNEL_LEFT].swap(buffers[CHANNEL_DELAY_LEFT]);
}
if(!buffers[CHANNEL_DELAY_RIGHT].isSilent())
{
buffers[CHANNEL_RIGHT].swap(buffers[CHANNEL_DELAY_RIGHT]);
}
if(!buffers[CHANNEL_DELAY_MONO].isSilent())
{
buffers[CHANNEL_MONO].swap(buffers[CHANNEL_DELAY_MONO]);
}
cbuffer[0] = buffers[CHANNEL_LEFT].array();
if (nrofchannels != 1)
cbuffer[1] = buffers[CHANNEL_RIGHT].array();
boolean hasactivevoices = false;
for (int i = 0; i < voicestatus.length; i++)
if (voicestatus[i].active)
if (voicestatus[i].channelmixer == cmixer.mixer) {
voicestatus[i].processAudioLogic(buffers);
hasactivevoices = true;
}
if(!buffers[CHANNEL_MONO].isSilent())
{
float[] mono = buffers[CHANNEL_MONO].array();
float[] left = buffers[CHANNEL_LEFT].array();
if (nrofchannels != 1) {
float[] right = buffers[CHANNEL_RIGHT].array();
for (int i = 0; i < bufferlen; i++) {
float v = mono[i];
left[i] += v;
right[i] += v;
}
}
else
{
for (int i = 0; i < bufferlen; i++) {
left[i] += mono[i];
}
}
}
if (!cmixer.mixer.process(cbuffer, 0, bufferlen)) {
synchronized (control_mutex) {
registeredMixers.remove(cmixer);
cur_registeredMixers = null;
}
}
for (int i = 0; i < cbuffer.length; i++) {
float[] cbuff = cbuffer[i];
float[] obuff = obuffer[i];
for (int j = 0; j < bufferlen; j++)
obuff[j] += cbuff[j];
}
if (!hasactivevoices) {
synchronized (control_mutex) {
if (stoppedMixers != null) {
if (stoppedMixers.contains(cmixer)) {
stoppedMixers.remove(cmixer);
cmixer.mixer.stop();
}
}
}
}
}
buffers[CHANNEL_LEFT] = leftbak;
buffers[CHANNEL_RIGHT] = rightbak;
buffers[CHANNEL_MONO] = monobak;
buffers[CHANNEL_DELAY_LEFT] = delayleftbak;
buffers[CHANNEL_DELAY_RIGHT] = delayrightbak;
buffers[CHANNEL_DELAY_MONO] = delaymonobak;
}
for (int i = 0; i < voicestatus.length; i++)
if (voicestatus[i].active)
if (voicestatus[i].channelmixer == null)
voicestatus[i].processAudioLogic(buffers);
if(!buffers[CHANNEL_MONO].isSilent())
{
float[] mono = buffers[CHANNEL_MONO].array();
float[] left = buffers[CHANNEL_LEFT].array();
int bufferlen = buffers[CHANNEL_LEFT].getSize();
if (nrofchannels != 1) {
float[] right = buffers[CHANNEL_RIGHT].array();
for (int i = 0; i < bufferlen; i++) {
float v = mono[i];
left[i] += v;
right[i] += v;
}
}
else
{
for (int i = 0; i < bufferlen; i++) {
left[i] += mono[i];
}
}
}
// Run effects
if (synth.chorus_on)
chorus.processAudio();
if (synth.reverb_on)
reverb.processAudio();
if (nrofchannels == 1)
volume_left = (volume_left + volume_right) / 2;
// Set Volume / Balance
if (last_volume_left != volume_left || last_volume_right != volume_right) {
float[] left = buffers[CHANNEL_LEFT].array();
float[] right = buffers[CHANNEL_RIGHT].array();
int bufferlen = buffers[CHANNEL_LEFT].getSize();
float amp;
float amp_delta;
amp = (float)(last_volume_left * last_volume_left);
amp_delta = (float)((volume_left * volume_left - amp) / bufferlen);
for (int i = 0; i < bufferlen; i++) {
amp += amp_delta;
left[i] *= amp;
}
if (nrofchannels != 1) {
amp = (float)(last_volume_right * last_volume_right);
amp_delta = (float)((volume_right*volume_right - amp) / bufferlen);
for (int i = 0; i < bufferlen; i++) {
amp += amp_delta;
right[i] *= volume_right;
}
}
last_volume_left = volume_left;
last_volume_right = volume_right;
} else {
if (volume_left != 1.0 || volume_right != 1.0) {
float[] left = buffers[CHANNEL_LEFT].array();
float[] right = buffers[CHANNEL_RIGHT].array();
int bufferlen = buffers[CHANNEL_LEFT].getSize();
float amp;
amp = (float) (volume_left * volume_left);
for (int i = 0; i < bufferlen; i++)
left[i] *= amp;
if (nrofchannels != 1) {
amp = (float)(volume_right * volume_right);
for (int i = 0; i < bufferlen; i++)
right[i] *= amp;
}
}
}
if(buffers[CHANNEL_LEFT].isSilent()
&& buffers[CHANNEL_RIGHT].isSilent())
{
int midimessages_size;
synchronized (control_mutex) {
midimessages_size = midimessages.size();
}
if(midimessages_size == 0)
{
pusher_silent_count++;
if(pusher_silent_count > 5)
{
pusher_silent_count = 0;
synchronized (control_mutex) {
pusher_silent = true;
if(synth.weakstream != null)
synth.weakstream.setInputStream(null);
}
}
}
}
else
pusher_silent_count = 0;
if (synth.agc_on)
agc.processAudio();
}
// Must only we called within control_mutex synchronization
public void activity()
{
long silent_samples = 0;
if(pusher_silent)
{
pusher_silent = false;
if(synth.weakstream != null)
{
synth.weakstream.setInputStream(ais);
silent_samples = synth.weakstream.silent_samples;
}
}
msec_last_activity = (long)((sample_pos + silent_samples)
* (1000000.0 / samplerate));
}
public void stopMixer(ModelChannelMixer mixer) {
if (stoppedMixers == null)
stoppedMixers = new HashSet<ModelChannelMixer>();
stoppedMixers.add(mixer);
}
public void registerMixer(ModelChannelMixer mixer) {
if (registeredMixers == null)
registeredMixers = new HashSet<SoftChannelMixerContainer>();
SoftChannelMixerContainer mixercontainer = new SoftChannelMixerContainer();
mixercontainer.buffers = new SoftAudioBuffer[6];
for (int i = 0; i < mixercontainer.buffers.length; i++) {
mixercontainer.buffers[i] =
new SoftAudioBuffer(buffer_len, synth.getFormat());
}
mixercontainer.mixer = mixer;
registeredMixers.add(mixercontainer);
cur_registeredMixers = null;
}
public SoftMainMixer(SoftSynthesizer synth) {
this.synth = synth;
sample_pos = 0;
co_master_balance[0] = 0.5;
co_master_volume[0] = 1;
co_master_coarse_tuning[0] = 0.5;
co_master_fine_tuning[0] = 0.5;
msec_buffer_len = (long) (1000000.0 / synth.getControlRate());
samplerate = synth.getFormat().getSampleRate();
nrofchannels = synth.getFormat().getChannels();
int buffersize = (int) (synth.getFormat().getSampleRate()
/ synth.getControlRate());
buffer_len = buffersize;
max_delay_midievent = buffersize;
control_mutex = synth.control_mutex;
buffers = new SoftAudioBuffer[14];
for (int i = 0; i < buffers.length; i++) {
buffers[i] = new SoftAudioBuffer(buffersize, synth.getFormat());
}
voicestatus = synth.getVoices();
reverb = new SoftReverb();
chorus = new SoftChorus();
agc = new SoftLimiter();
float samplerate = synth.getFormat().getSampleRate();
float controlrate = synth.getControlRate();
reverb.init(samplerate, controlrate);
chorus.init(samplerate, controlrate);
agc.init(samplerate, controlrate);
reverb.setLightMode(synth.reverb_light);
reverb.setMixMode(true);
chorus.setMixMode(true);
agc.setMixMode(false);
chorus.setInput(0, buffers[CHANNEL_EFFECT2]);
chorus.setOutput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
chorus.setOutput(1, buffers[CHANNEL_RIGHT]);
chorus.setOutput(2, buffers[CHANNEL_EFFECT1]);
reverb.setInput(0, buffers[CHANNEL_EFFECT1]);
reverb.setOutput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
reverb.setOutput(1, buffers[CHANNEL_RIGHT]);
agc.setInput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
agc.setInput(1, buffers[CHANNEL_RIGHT]);
agc.setOutput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
agc.setOutput(1, buffers[CHANNEL_RIGHT]);
InputStream in = new InputStream() {
private final SoftAudioBuffer[] buffers = SoftMainMixer.this.buffers;
private final int nrofchannels
= SoftMainMixer.this.synth.getFormat().getChannels();
private final int buffersize = buffers[0].getSize();
private final byte[] bbuffer = new byte[buffersize
* (SoftMainMixer.this.synth.getFormat()
.getSampleSizeInBits() / 8)
* nrofchannels];
private int bbuffer_pos = 0;
private final byte[] single = new byte[1];
public void fillBuffer() {
/*
boolean pusher_silent2;
synchronized (control_mutex) {
pusher_silent2 = pusher_silent;
}
if(!pusher_silent2)*/
processAudioBuffers();
for (int i = 0; i < nrofchannels; i++)
buffers[i].get(bbuffer, i);
bbuffer_pos = 0;
}
public int read(byte[] b, int off, int len) {
int bbuffer_len = bbuffer.length;
int offlen = off + len;
int orgoff = off;
byte[] bbuffer = this.bbuffer;
while (off < offlen) {
if (available() == 0)
fillBuffer();
else {
int bbuffer_pos = this.bbuffer_pos;
while (off < offlen && bbuffer_pos < bbuffer_len)
b[off++] = bbuffer[bbuffer_pos++];
this.bbuffer_pos = bbuffer_pos;
if (!readfully)
return off - orgoff;
}
}
return len;
}
public int read() throws IOException {
int ret = read(single);
if (ret == -1)
return -1;
return single[0] & 0xFF;
}
public int available() {
return bbuffer.length - bbuffer_pos;
}
public void close() {
SoftMainMixer.this.synth.close();
}
};
ais = new AudioInputStream(in, synth.getFormat(), AudioSystem.NOT_SPECIFIED);
}
public AudioInputStream getInputStream() {
return ais;
}
public void reset() {
SoftChannel[] channels = synth.channels;
for (int i = 0; i < channels.length; i++) {
channels[i].allSoundOff();
channels[i].resetAllControllers(true);
if (synth.getGeneralMidiMode() == 2) {
if (i == 9)
channels[i].programChange(0, 0x78 * 128);
else
channels[i].programChange(0, 0x79 * 128);
} else
channels[i].programChange(0, 0);
}
setVolume(0x7F * 128 + 0x7F);
setBalance(0x40 * 128 + 0x00);
setCoarseTuning(0x40 * 128 + 0x00);
setFineTuning(0x40 * 128 + 0x00);
// Reset Reverb
globalParameterControlChange(
new int[]{0x01 * 128 + 0x01}, new long[]{0}, new long[]{4});
// Reset Chorus
globalParameterControlChange(
new int[]{0x01 * 128 + 0x02}, new long[]{0}, new long[]{2});
}
public void setVolume(int value) {
synchronized (control_mutex) {
co_master_volume[0] = value / 16384.0;
}
}
public void setBalance(int value) {
synchronized (control_mutex) {
co_master_balance[0] = value / 16384.0;
}
}
public void setFineTuning(int value) {
synchronized (control_mutex) {
co_master_fine_tuning[0] = value / 16384.0;
}
}
public void setCoarseTuning(int value) {
synchronized (control_mutex) {
co_master_coarse_tuning[0] = value / 16384.0;
}
}
public int getVolume() {
synchronized (control_mutex) {
return (int) (co_master_volume[0] * 16384.0);
}
}
public int getBalance() {
synchronized (control_mutex) {
return (int) (co_master_balance[0] * 16384.0);
}
}
public int getFineTuning() {
synchronized (control_mutex) {
return (int) (co_master_fine_tuning[0] * 16384.0);
}
}
public int getCoarseTuning() {
synchronized (control_mutex) {
return (int) (co_master_coarse_tuning[0] * 16384.0);
}
}
public void globalParameterControlChange(int[] slothpath, long[] params,
long[] paramsvalue) {
if (slothpath.length == 0)
return;
synchronized (control_mutex) {
// slothpath: 01xx are reserved only for GM2
if (slothpath[0] == 0x01 * 128 + 0x01) {
for (int i = 0; i < paramsvalue.length; i++) {
reverb.globalParameterControlChange(slothpath, params[i],
paramsvalue[i]);
}
}
if (slothpath[0] == 0x01 * 128 + 0x02) {
for (int i = 0; i < paramsvalue.length; i++) {
chorus.globalParameterControlChange(slothpath, params[i],
paramsvalue[i]);
}
}
}
}
public void processMessage(Object object) {
if (object instanceof byte[])
processMessage((byte[]) object);
if (object instanceof MidiMessage)
processMessage((MidiMessage)object);
}
public void processMessage(MidiMessage message) {
if (message instanceof ShortMessage) {
ShortMessage sms = (ShortMessage)message;
processMessage(sms.getChannel(), sms.getCommand(),
sms.getData1(), sms.getData2());
return;
}
processMessage(message.getMessage());
}
public void processMessage(byte[] data) {
int status = 0;
if (data.length > 0)
status = data[0] & 0xFF;
if (status == 0xF0) {
processSystemExclusiveMessage(data);
return;
}
int cmd = (status & 0xF0);
int ch = (status & 0x0F);
int data1;
int data2;
if (data.length > 1)
data1 = data[1] & 0xFF;
else
data1 = 0;
if (data.length > 2)
data2 = data[2] & 0xFF;
else
data2 = 0;
processMessage(ch, cmd, data1, data2);
}
public void processMessage(int ch, int cmd, int data1, int data2) {
synchronized (synth.control_mutex) {
activity();
}
if (cmd == 0xF0) {
int status = cmd | ch;
switch (status) {
case ShortMessage.ACTIVE_SENSING:
synchronized (synth.control_mutex) {
active_sensing_on = true;
}
break;
default:
break;
}
return;
}
SoftChannel[] channels = synth.channels;
if (ch >= channels.length)
return;
SoftChannel softchannel = channels[ch];
switch (cmd) {
case ShortMessage.NOTE_ON:
if(delay_midievent != 0)
softchannel.noteOn(data1, data2, delay_midievent);
else
softchannel.noteOn(data1, data2);
break;
case ShortMessage.NOTE_OFF:
softchannel.noteOff(data1, data2);
break;
case ShortMessage.POLY_PRESSURE:
softchannel.setPolyPressure(data1, data2);
break;
case ShortMessage.CONTROL_CHANGE:
softchannel.controlChange(data1, data2);
break;
case ShortMessage.PROGRAM_CHANGE:
softchannel.programChange(data1);
break;
case ShortMessage.CHANNEL_PRESSURE:
softchannel.setChannelPressure(data1);
break;
case ShortMessage.PITCH_BEND:
softchannel.setPitchBend(data1 + data2 * 128);
break;
default:
break;
}
}
public long getMicrosecondPosition() {
if(pusher_silent)
{
if(synth.weakstream != null)
{
return (long)((sample_pos + synth.weakstream.silent_samples)
* (1000000.0 / samplerate));
}
}
return (long)(sample_pos * (1000000.0 / samplerate));
}
public void close() {
}
}
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