JDK8/Java8源码在线阅读
/*
* Copyright (c) 2008, 2014, 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
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*/
package com.sun.media.sound;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.ref.WeakReference;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.StringTokenizer;
import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;
import javax.sound.midi.Instrument;
import javax.sound.midi.MidiChannel;
import javax.sound.midi.MidiDevice;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Patch;
import javax.sound.midi.Receiver;
import javax.sound.midi.Soundbank;
import javax.sound.midi.Transmitter;
import javax.sound.midi.VoiceStatus;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
/**
* The software synthesizer class.
*
* @author Karl Helgason
*/
public final class SoftSynthesizer implements AudioSynthesizer,
ReferenceCountingDevice {
protected static final class WeakAudioStream extends InputStream
{
private volatile AudioInputStream stream;
public SoftAudioPusher pusher = null;
public AudioInputStream jitter_stream = null;
public SourceDataLine sourceDataLine = null;
public volatile long silent_samples = 0;
private int framesize = 0;
private WeakReference<AudioInputStream> weak_stream_link;
private AudioFloatConverter converter;
private float[] silentbuffer = null;
private int samplesize;
public void setInputStream(AudioInputStream stream)
{
this.stream = stream;
}
public int available() throws IOException {
AudioInputStream local_stream = stream;
if(local_stream != null)
return local_stream.available();
return 0;
}
public int read() throws IOException {
byte[] b = new byte[1];
if (read(b) == -1)
return -1;
return b[0] & 0xFF;
}
public int read(byte[] b, int off, int len) throws IOException {
AudioInputStream local_stream = stream;
if(local_stream != null)
return local_stream.read(b, off, len);
else
{
int flen = len / samplesize;
if(silentbuffer == null || silentbuffer.length < flen)
silentbuffer = new float[flen];
converter.toByteArray(silentbuffer, flen, b, off);
silent_samples += (long)((len / framesize));
if(pusher != null)
if(weak_stream_link.get() == null)
{
Runnable runnable = new Runnable()
{
SoftAudioPusher _pusher = pusher;
AudioInputStream _jitter_stream = jitter_stream;
SourceDataLine _sourceDataLine = sourceDataLine;
public void run()
{
_pusher.stop();
if(_jitter_stream != null)
try {
_jitter_stream.close();
} catch (IOException e) {
e.printStackTrace();
}
if(_sourceDataLine != null)
_sourceDataLine.close();
}
};
pusher = null;
jitter_stream = null;
sourceDataLine = null;
new Thread(runnable).start();
}
return len;
}
}
public WeakAudioStream(AudioInputStream stream) {
this.stream = stream;
weak_stream_link = new WeakReference<AudioInputStream>(stream);
converter = AudioFloatConverter.getConverter(stream.getFormat());
samplesize = stream.getFormat().getFrameSize() / stream.getFormat().getChannels();
framesize = stream.getFormat().getFrameSize();
}
public AudioInputStream getAudioInputStream()
{
return new AudioInputStream(this, stream.getFormat(), AudioSystem.NOT_SPECIFIED);
}
public void close() throws IOException
{
AudioInputStream astream = weak_stream_link.get();
if(astream != null)
astream.close();
}
}
private static class Info extends MidiDevice.Info {
Info() {
super(INFO_NAME, INFO_VENDOR, INFO_DESCRIPTION, INFO_VERSION);
}
}
static final String INFO_NAME = "Gervill";
static final String INFO_VENDOR = "OpenJDK";
static final String INFO_DESCRIPTION = "Software MIDI Synthesizer";
static final String INFO_VERSION = "1.0";
final static MidiDevice.Info info = new Info();
private static SourceDataLine testline = null;
private static Soundbank defaultSoundBank = null;
WeakAudioStream weakstream = null;
final Object control_mutex = this;
int voiceIDCounter = 0;
// 0: default
// 1: DLS Voice Allocation
int voice_allocation_mode = 0;
boolean load_default_soundbank = false;
boolean reverb_light = true;
boolean reverb_on = true;
boolean chorus_on = true;
boolean agc_on = true;
SoftChannel[] channels;
SoftChannelProxy[] external_channels = null;
private boolean largemode = false;
// 0: GM Mode off (default)
// 1: GM Level 1
// 2: GM Level 2
private int gmmode = 0;
private int deviceid = 0;
private AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
private SourceDataLine sourceDataLine = null;
private SoftAudioPusher pusher = null;
private AudioInputStream pusher_stream = null;
private float controlrate = 147f;
private boolean open = false;
private boolean implicitOpen = false;
private String resamplerType = "linear";
private SoftResampler resampler = new SoftLinearResampler();
private int number_of_midi_channels = 16;
private int maxpoly = 64;
private long latency = 200000; // 200 msec
private boolean jitter_correction = false;
private SoftMainMixer mainmixer;
private SoftVoice[] voices;
private Map<String, SoftTuning> tunings
= new HashMap<String, SoftTuning>();
private Map<String, SoftInstrument> inslist
= new HashMap<String, SoftInstrument>();
private Map<String, ModelInstrument> loadedlist
= new HashMap<String, ModelInstrument>();
private ArrayList<Receiver> recvslist = new ArrayList<Receiver>();
private void getBuffers(ModelInstrument instrument,
List<ModelByteBuffer> buffers) {
for (ModelPerformer performer : instrument.getPerformers()) {
if (performer.getOscillators() != null) {
for (ModelOscillator osc : performer.getOscillators()) {
if (osc instanceof ModelByteBufferWavetable) {
ModelByteBufferWavetable w = (ModelByteBufferWavetable)osc;
ModelByteBuffer buff = w.getBuffer();
if (buff != null)
buffers.add(buff);
buff = w.get8BitExtensionBuffer();
if (buff != null)
buffers.add(buff);
}
}
}
}
}
private boolean loadSamples(List<ModelInstrument> instruments) {
if (largemode)
return true;
List<ModelByteBuffer> buffers = new ArrayList<ModelByteBuffer>();
for (ModelInstrument instrument : instruments)
getBuffers(instrument, buffers);
try {
ModelByteBuffer.loadAll(buffers);
} catch (IOException e) {
return false;
}
return true;
}
private boolean loadInstruments(List<ModelInstrument> instruments) {
if (!isOpen())
return false;
if (!loadSamples(instruments))
return false;
synchronized (control_mutex) {
if (channels != null)
for (SoftChannel c : channels)
{
c.current_instrument = null;
c.current_director = null;
}
for (Instrument instrument : instruments) {
String pat = patchToString(instrument.getPatch());
SoftInstrument softins
= new SoftInstrument((ModelInstrument) instrument);
inslist.put(pat, softins);
loadedlist.put(pat, (ModelInstrument) instrument);
}
}
return true;
}
private void processPropertyInfo(Map<String, Object> info) {
AudioSynthesizerPropertyInfo[] items = getPropertyInfo(info);
String resamplerType = (String)items[0].value;
if (resamplerType.equalsIgnoreCase("point"))
{
this.resampler = new SoftPointResampler();
this.resamplerType = "point";
}
else if (resamplerType.equalsIgnoreCase("linear"))
{
this.resampler = new SoftLinearResampler2();
this.resamplerType = "linear";
}
else if (resamplerType.equalsIgnoreCase("linear1"))
{
this.resampler = new SoftLinearResampler();
this.resamplerType = "linear1";
}
else if (resamplerType.equalsIgnoreCase("linear2"))
{
this.resampler = new SoftLinearResampler2();
this.resamplerType = "linear2";
}
else if (resamplerType.equalsIgnoreCase("cubic"))
{
this.resampler = new SoftCubicResampler();
this.resamplerType = "cubic";
}
else if (resamplerType.equalsIgnoreCase("lanczos"))
{
this.resampler = new SoftLanczosResampler();
this.resamplerType = "lanczos";
}
else if (resamplerType.equalsIgnoreCase("sinc"))
{
this.resampler = new SoftSincResampler();
this.resamplerType = "sinc";
}
setFormat((AudioFormat)items[2].value);
controlrate = (Float)items[1].value;
latency = (Long)items[3].value;
deviceid = (Integer)items[4].value;
maxpoly = (Integer)items[5].value;
reverb_on = (Boolean)items[6].value;
chorus_on = (Boolean)items[7].value;
agc_on = (Boolean)items[8].value;
largemode = (Boolean)items[9].value;
number_of_midi_channels = (Integer)items[10].value;
jitter_correction = (Boolean)items[11].value;
reverb_light = (Boolean)items[12].value;
load_default_soundbank = (Boolean)items[13].value;
}
private String patchToString(Patch patch) {
if (patch instanceof ModelPatch && ((ModelPatch) patch).isPercussion())
return "p." + patch.getProgram() + "." + patch.getBank();
else
return patch.getProgram() + "." + patch.getBank();
}
private void setFormat(AudioFormat format) {
if (format.getChannels() > 2) {
throw new IllegalArgumentException(
"Only mono and stereo audio supported.");
}
if (AudioFloatConverter.getConverter(format) == null)
throw new IllegalArgumentException("Audio format not supported.");
this.format = format;
}
void removeReceiver(Receiver recv) {
boolean perform_close = false;
synchronized (control_mutex) {
if (recvslist.remove(recv)) {
if (implicitOpen && recvslist.isEmpty())
perform_close = true;
}
}
if (perform_close)
close();
}
SoftMainMixer getMainMixer() {
if (!isOpen())
return null;
return mainmixer;
}
SoftInstrument findInstrument(int program, int bank, int channel) {
// Add support for GM2 banks 0x78 and 0x79
// as specified in DLS 2.2 in Section 1.4.6
// which allows using percussion and melodic instruments
// on all channels
if (bank >> 7 == 0x78 || bank >> 7 == 0x79) {
SoftInstrument current_instrument
= inslist.get(program + "." + bank);
if (current_instrument != null)
return current_instrument;
String p_plaf;
if (bank >> 7 == 0x78)
p_plaf = "p.";
else
p_plaf = "";
// Instrument not found fallback to MSB:bank, LSB:0
current_instrument = inslist.get(p_plaf + program + "."
+ ((bank & 128) << 7));
if (current_instrument != null)
return current_instrument;
// Instrument not found fallback to MSB:0, LSB:bank
current_instrument = inslist.get(p_plaf + program + "."
+ (bank & 128));
if (current_instrument != null)
return current_instrument;
// Instrument not found fallback to MSB:0, LSB:0
current_instrument = inslist.get(p_plaf + program + ".0");
if (current_instrument != null)
return current_instrument;
// Instrument not found fallback to MSB:0, LSB:0, program=0
current_instrument = inslist.get(p_plaf + program + "0.0");
if (current_instrument != null)
return current_instrument;
return null;
}
// Channel 10 uses percussion instruments
String p_plaf;
if (channel == 9)
p_plaf = "p.";
else
p_plaf = "";
SoftInstrument current_instrument
= inslist.get(p_plaf + program + "." + bank);
if (current_instrument != null)
return current_instrument;
// Instrument not found fallback to MSB:0, LSB:0
current_instrument = inslist.get(p_plaf + program + ".0");
if (current_instrument != null)
return current_instrument;
// Instrument not found fallback to MSB:0, LSB:0, program=0
current_instrument = inslist.get(p_plaf + "0.0");
if (current_instrument != null)
return current_instrument;
return null;
}
int getVoiceAllocationMode() {
return voice_allocation_mode;
}
int getGeneralMidiMode() {
return gmmode;
}
void setGeneralMidiMode(int gmmode) {
this.gmmode = gmmode;
}
int getDeviceID() {
return deviceid;
}
float getControlRate() {
return controlrate;
}
SoftVoice[] getVoices() {
return voices;
}
SoftTuning getTuning(Patch patch) {
String t_id = patchToString(patch);
SoftTuning tuning = tunings.get(t_id);
if (tuning == null) {
tuning = new SoftTuning(patch);
tunings.put(t_id, tuning);
}
return tuning;
}
public long getLatency() {
synchronized (control_mutex) {
return latency;
}
}
public AudioFormat getFormat() {
synchronized (control_mutex) {
return format;
}
}
public int getMaxPolyphony() {
synchronized (control_mutex) {
return maxpoly;
}
}
public MidiChannel[] getChannels() {
synchronized (control_mutex) {
// if (external_channels == null) => the synthesizer is not open,
// create 16 proxy channels
// otherwise external_channels has the same length as channels array
if (external_channels == null) {
external_channels = new SoftChannelProxy[16];
for (int i = 0; i < external_channels.length; i++)
external_channels[i] = new SoftChannelProxy();
}
MidiChannel[] ret;
if (isOpen())
ret = new MidiChannel[channels.length];
else
ret = new MidiChannel[16];
for (int i = 0; i < ret.length; i++)
ret[i] = external_channels[i];
return ret;
}
}
public VoiceStatus[] getVoiceStatus() {
if (!isOpen()) {
VoiceStatus[] tempVoiceStatusArray
= new VoiceStatus[getMaxPolyphony()];
for (int i = 0; i < tempVoiceStatusArray.length; i++) {
VoiceStatus b = new VoiceStatus();
b.active = false;
b.bank = 0;
b.channel = 0;
b.note = 0;
b.program = 0;
b.volume = 0;
tempVoiceStatusArray[i] = b;
}
return tempVoiceStatusArray;
}
synchronized (control_mutex) {
VoiceStatus[] tempVoiceStatusArray = new VoiceStatus[voices.length];
for (int i = 0; i < voices.length; i++) {
VoiceStatus a = voices[i];
VoiceStatus b = new VoiceStatus();
b.active = a.active;
b.bank = a.bank;
b.channel = a.channel;
b.note = a.note;
b.program = a.program;
b.volume = a.volume;
tempVoiceStatusArray[i] = b;
}
return tempVoiceStatusArray;
}
}
public boolean isSoundbankSupported(Soundbank soundbank) {
for (Instrument ins: soundbank.getInstruments())
if (!(ins instanceof ModelInstrument))
return false;
return true;
}
public boolean loadInstrument(Instrument instrument) {
if (instrument == null || (!(instrument instanceof ModelInstrument))) {
throw new IllegalArgumentException("Unsupported instrument: " +
instrument);
}
List<ModelInstrument> instruments = new ArrayList<ModelInstrument>();
instruments.add((ModelInstrument)instrument);
return loadInstruments(instruments);
}
public void unloadInstrument(Instrument instrument) {
if (instrument == null || (!(instrument instanceof ModelInstrument))) {
throw new IllegalArgumentException("Unsupported instrument: " +
instrument);
}
if (!isOpen())
return;
String pat = patchToString(instrument.getPatch());
synchronized (control_mutex) {
for (SoftChannel c: channels)
c.current_instrument = null;
inslist.remove(pat);
loadedlist.remove(pat);
for (int i = 0; i < channels.length; i++) {
channels[i].allSoundOff();
}
}
}
public boolean remapInstrument(Instrument from, Instrument to) {
if (from == null)
throw new NullPointerException();
if (to == null)
throw new NullPointerException();
if (!(from instanceof ModelInstrument)) {
throw new IllegalArgumentException("Unsupported instrument: " +
from.toString());
}
if (!(to instanceof ModelInstrument)) {
throw new IllegalArgumentException("Unsupported instrument: " +
to.toString());
}
if (!isOpen())
return false;
synchronized (control_mutex) {
if (!loadedlist.containsValue(to))
throw new IllegalArgumentException("Instrument to is not loaded.");
unloadInstrument(from);
ModelMappedInstrument mfrom = new ModelMappedInstrument(
(ModelInstrument)to, from.getPatch());
return loadInstrument(mfrom);
}
}
public Soundbank getDefaultSoundbank() {
synchronized (SoftSynthesizer.class) {
if (defaultSoundBank != null)
return defaultSoundBank;
List<PrivilegedAction<InputStream>> actions =
new ArrayList<PrivilegedAction<InputStream>>();
actions.add(new PrivilegedAction<InputStream>() {
public InputStream run() {
File javahome = new File(System.getProperties()
.getProperty("java.home"));
File libaudio = new File(new File(javahome, "lib"), "audio");
if (libaudio.exists()) {
File foundfile = null;
File[] files = libaudio.listFiles();
if (files != null) {
for (int i = 0; i < files.length; i++) {
File file = files[i];
if (file.isFile()) {
String lname = file.getName().toLowerCase();
if (lname.endsWith(".sf2")
|| lname.endsWith(".dls")) {
if (foundfile == null
|| (file.length() > foundfile
.length())) {
foundfile = file;
}
}
}
}
}
if (foundfile != null) {
try {
return new FileInputStream(foundfile);
} catch (IOException e) {
}
}
}
return null;
}
});
actions.add(new PrivilegedAction<InputStream>() {
public InputStream run() {
if (System.getProperties().getProperty("os.name")
.startsWith("Windows")) {
File gm_dls = new File(System.getenv("SystemRoot")
+ "\\system32\\drivers\\gm.dls");
if (gm_dls.exists()) {
try {
return new FileInputStream(gm_dls);
} catch (IOException e) {
}
}
}
return null;
}
});
actions.add(new PrivilegedAction<InputStream>() {
public InputStream run() {
/*
* Try to load saved generated soundbank
*/
File userhome = new File(System.getProperty("user.home"),
".gervill");
File emg_soundbank_file = new File(userhome,
"soundbank-emg.sf2");
if (emg_soundbank_file.exists()) {
try {
return new FileInputStream(emg_soundbank_file);
} catch (IOException e) {
}
}
return null;
}
});
for (PrivilegedAction<InputStream> action : actions) {
try {
InputStream is = AccessController.doPrivileged(action);
if(is == null) continue;
Soundbank sbk;
try {
sbk = MidiSystem.getSoundbank(new BufferedInputStream(is));
} finally {
is.close();
}
if (sbk != null) {
defaultSoundBank = sbk;
return defaultSoundBank;
}
} catch (Exception e) {
}
}
try {
/*
* Generate emergency soundbank
*/
defaultSoundBank = EmergencySoundbank.createSoundbank();
} catch (Exception e) {
}
if (defaultSoundBank != null) {
/*
* Save generated soundbank to disk for faster future use.
*/
OutputStream out = AccessController
.doPrivileged((PrivilegedAction<OutputStream>) () -> {
try {
File userhome = new File(System
.getProperty("user.home"), ".gervill");
if (!userhome.exists()) {
userhome.mkdirs();
}
File emg_soundbank_file = new File(
userhome, "soundbank-emg.sf2");
if (emg_soundbank_file.exists()) {
return null;
}
return new FileOutputStream(emg_soundbank_file);
} catch (final FileNotFoundException ignored) {
}
return null;
});
if (out != null) {
try {
((SF2Soundbank) defaultSoundBank).save(out);
out.close();
} catch (final IOException ignored) {
}
}
}
}
return defaultSoundBank;
}
public Instrument[] getAvailableInstruments() {
Soundbank defsbk = getDefaultSoundbank();
if (defsbk == null)
return new Instrument[0];
Instrument[] inslist_array = defsbk.getInstruments();
Arrays.sort(inslist_array, new ModelInstrumentComparator());
return inslist_array;
}
public Instrument[] getLoadedInstruments() {
if (!isOpen())
return new Instrument[0];
synchronized (control_mutex) {
ModelInstrument[] inslist_array =
new ModelInstrument[loadedlist.values().size()];
loadedlist.values().toArray(inslist_array);
Arrays.sort(inslist_array, new ModelInstrumentComparator());
return inslist_array;
}
}
public boolean loadAllInstruments(Soundbank soundbank) {
List<ModelInstrument> instruments = new ArrayList<ModelInstrument>();
for (Instrument ins: soundbank.getInstruments()) {
if (ins == null || !(ins instanceof ModelInstrument)) {
throw new IllegalArgumentException(
"Unsupported instrument: " + ins);
}
instruments.add((ModelInstrument)ins);
}
return loadInstruments(instruments);
}
public void unloadAllInstruments(Soundbank soundbank) {
if (soundbank == null || !isSoundbankSupported(soundbank))
throw new IllegalArgumentException("Unsupported soundbank: " + soundbank);
if (!isOpen())
return;
for (Instrument ins: soundbank.getInstruments()) {
if (ins instanceof ModelInstrument) {
unloadInstrument(ins);
}
}
}
public boolean loadInstruments(Soundbank soundbank, Patch[] patchList) {
List<ModelInstrument> instruments = new ArrayList<ModelInstrument>();
for (Patch patch: patchList) {
Instrument ins = soundbank.getInstrument(patch);
if (ins == null || !(ins instanceof ModelInstrument)) {
throw new IllegalArgumentException(
"Unsupported instrument: " + ins);
}
instruments.add((ModelInstrument)ins);
}
return loadInstruments(instruments);
}
public void unloadInstruments(Soundbank soundbank, Patch[] patchList) {
if (soundbank == null || !isSoundbankSupported(soundbank))
throw new IllegalArgumentException("Unsupported soundbank: " + soundbank);
if (!isOpen())
return;
for (Patch pat: patchList) {
Instrument ins = soundbank.getInstrument(pat);
if (ins instanceof ModelInstrument) {
unloadInstrument(ins);
}
}
}
public MidiDevice.Info getDeviceInfo() {
return info;
}
private Properties getStoredProperties() {
return AccessController
.doPrivileged((PrivilegedAction<Properties>) () -> {
Properties p = new Properties();
String notePath = "/com/sun/media/sound/softsynthesizer";
try {
Preferences prefroot = Preferences.userRoot();
if (prefroot.nodeExists(notePath)) {
Preferences prefs = prefroot.node(notePath);
String[] prefs_keys = prefs.keys();
for (String prefs_key : prefs_keys) {
String val = prefs.get(prefs_key, null);
if (val != null) {
p.setProperty(prefs_key, val);
}
}
}
} catch (final BackingStoreException ignored) {
}
return p;
});
}
public AudioSynthesizerPropertyInfo[] getPropertyInfo(Map<String, Object> info) {
List<AudioSynthesizerPropertyInfo> list =
new ArrayList<AudioSynthesizerPropertyInfo>();
AudioSynthesizerPropertyInfo item;
// If info != null or synthesizer is closed
// we return how the synthesizer will be set on next open
// If info == null and synthesizer is open
// we return current synthesizer properties.
boolean o = info == null && open;
item = new AudioSynthesizerPropertyInfo("interpolation", o?resamplerType:"linear");
item.choices = new String[]{"linear", "linear1", "linear2", "cubic",
"lanczos", "sinc", "point"};
item.description = "Interpolation method";
list.add(item);
item = new AudioSynthesizerPropertyInfo("control rate", o?controlrate:147f);
item.description = "Control rate";
list.add(item);
item = new AudioSynthesizerPropertyInfo("format",
o?format:new AudioFormat(44100, 16, 2, true, false));
item.description = "Default audio format";
list.add(item);
item = new AudioSynthesizerPropertyInfo("latency", o?latency:120000L);
item.description = "Default latency";
list.add(item);
item = new AudioSynthesizerPropertyInfo("device id", o?deviceid:0);
item.description = "Device ID for SysEx Messages";
list.add(item);
item = new AudioSynthesizerPropertyInfo("max polyphony", o?maxpoly:64);
item.description = "Maximum polyphony";
list.add(item);
item = new AudioSynthesizerPropertyInfo("reverb", o?reverb_on:true);
item.description = "Turn reverb effect on or off";
list.add(item);
item = new AudioSynthesizerPropertyInfo("chorus", o?chorus_on:true);
item.description = "Turn chorus effect on or off";
list.add(item);
item = new AudioSynthesizerPropertyInfo("auto gain control", o?agc_on:true);
item.description = "Turn auto gain control on or off";
list.add(item);
item = new AudioSynthesizerPropertyInfo("large mode", o?largemode:false);
item.description = "Turn large mode on or off.";
list.add(item);
item = new AudioSynthesizerPropertyInfo("midi channels", o?channels.length:16);
item.description = "Number of midi channels.";
list.add(item);
item = new AudioSynthesizerPropertyInfo("jitter correction", o?jitter_correction:true);
item.description = "Turn jitter correction on or off.";
list.add(item);
item = new AudioSynthesizerPropertyInfo("light reverb", o?reverb_light:true);
item.description = "Turn light reverb mode on or off";
list.add(item);
item = new AudioSynthesizerPropertyInfo("load default soundbank", o?load_default_soundbank:true);
item.description = "Enabled/disable loading default soundbank";
list.add(item);
AudioSynthesizerPropertyInfo[] items;
items = list.toArray(new AudioSynthesizerPropertyInfo[list.size()]);
Properties storedProperties = getStoredProperties();
for (AudioSynthesizerPropertyInfo item2 : items) {
Object v = (info == null) ? null : info.get(item2.name);
v = (v != null) ? v : storedProperties.getProperty(item2.name);
if (v != null) {
Class c = (item2.valueClass);
if (c.isInstance(v))
item2.value = v;
else if (v instanceof String) {
String s = (String) v;
if (c == Boolean.class) {
if (s.equalsIgnoreCase("true"))
item2.value = Boolean.TRUE;
if (s.equalsIgnoreCase("false"))
item2.value = Boolean.FALSE;
} else if (c == AudioFormat.class) {
int channels = 2;
boolean signed = true;
boolean bigendian = false;
int bits = 16;
float sampleRate = 44100f;
try {
StringTokenizer st = new StringTokenizer(s, ", ");
String prevToken = "";
while (st.hasMoreTokens()) {
String token = st.nextToken().toLowerCase();
if (token.equals("mono"))
channels = 1;
if (token.startsWith("channel"))
channels = Integer.parseInt(prevToken);
if (token.contains("unsigned"))
signed = false;
if (token.equals("big-endian"))
bigendian = true;
if (token.equals("bit"))
bits = Integer.parseInt(prevToken);
if (token.equals("hz"))
sampleRate = Float.parseFloat(prevToken);
prevToken = token;
}
item2.value = new AudioFormat(sampleRate, bits,
channels, signed, bigendian);
} catch (NumberFormatException e) {
}
} else
try {
if (c == Byte.class)
item2.value = Byte.valueOf(s);
else if (c == Short.class)
item2.value = Short.valueOf(s);
else if (c == Integer.class)
item2.value = Integer.valueOf(s);
else if (c == Long.class)
item2.value = Long.valueOf(s);
else if (c == Float.class)
item2.value = Float.valueOf(s);
else if (c == Double.class)
item2.value = Double.valueOf(s);
} catch (NumberFormatException e) {
}
} else if (v instanceof Number) {
Number n = (Number) v;
if (c == Byte.class)
item2.value = Byte.valueOf(n.byteValue());
if (c == Short.class)
item2.value = Short.valueOf(n.shortValue());
if (c == Integer.class)
item2.value = Integer.valueOf(n.intValue());
if (c == Long.class)
item2.value = Long.valueOf(n.longValue());
if (c == Float.class)
item2.value = Float.valueOf(n.floatValue());
if (c == Double.class)
item2.value = Double.valueOf(n.doubleValue());
}
}
}
return items;
}
public void open() throws MidiUnavailableException {
if (isOpen()) {
synchronized (control_mutex) {
implicitOpen = false;
}
return;
}
open(null, null);
}
public void open(SourceDataLine line, Map<String, Object> info) throws MidiUnavailableException {
if (isOpen()) {
synchronized (control_mutex) {
implicitOpen = false;
}
return;
}
synchronized (control_mutex) {
try {
if (line != null) {
// can throw IllegalArgumentException
setFormat(line.getFormat());
}
AudioInputStream ais = openStream(getFormat(), info);
weakstream = new WeakAudioStream(ais);
ais = weakstream.getAudioInputStream();
if (line == null)
{
if (testline != null) {
line = testline;
} else {
// can throw LineUnavailableException,
// IllegalArgumentException, SecurityException
line = AudioSystem.getSourceDataLine(getFormat());
}
}
double latency = this.latency;
if (!line.isOpen()) {
int bufferSize = getFormat().getFrameSize()
* (int)(getFormat().getFrameRate() * (latency/1000000f));
// can throw LineUnavailableException,
// IllegalArgumentException, SecurityException
line.open(getFormat(), bufferSize);
// Remember that we opened that line
// so we can close again in SoftSynthesizer.close()
sourceDataLine = line;
}
if (!line.isActive())
line.start();
int controlbuffersize = 512;
try {
controlbuffersize = ais.available();
} catch (IOException e) {
}
// Tell mixer not fill read buffers fully.
// This lowers latency, and tells DataPusher
// to read in smaller amounts.
//mainmixer.readfully = false;
//pusher = new DataPusher(line, ais);
int buffersize = line.getBufferSize();
buffersize -= buffersize % controlbuffersize;
if (buffersize < 3 * controlbuffersize)
buffersize = 3 * controlbuffersize;
if (jitter_correction) {
ais = new SoftJitterCorrector(ais, buffersize,
controlbuffersize);
if(weakstream != null)
weakstream.jitter_stream = ais;
}
pusher = new SoftAudioPusher(line, ais, controlbuffersize);
pusher_stream = ais;
pusher.start();
if(weakstream != null)
{
weakstream.pusher = pusher;
weakstream.sourceDataLine = sourceDataLine;
}
} catch (final LineUnavailableException | SecurityException
| IllegalArgumentException e) {
if (isOpen()) {
close();
}
// am: need MidiUnavailableException(Throwable) ctor!
MidiUnavailableException ex = new MidiUnavailableException(
"Can not open line");
ex.initCause(e);
throw ex;
}
}
}
public AudioInputStream openStream(AudioFormat targetFormat,
Map<String, Object> info) throws MidiUnavailableException {
if (isOpen())
throw new MidiUnavailableException("Synthesizer is already open");
synchronized (control_mutex) {
gmmode = 0;
voice_allocation_mode = 0;
processPropertyInfo(info);
open = true;
implicitOpen = false;
if (targetFormat != null)
setFormat(targetFormat);
if (load_default_soundbank)
{
Soundbank defbank = getDefaultSoundbank();
if (defbank != null) {
loadAllInstruments(defbank);
}
}
voices = new SoftVoice[maxpoly];
for (int i = 0; i < maxpoly; i++)
voices[i] = new SoftVoice(this);
mainmixer = new SoftMainMixer(this);
channels = new SoftChannel[number_of_midi_channels];
for (int i = 0; i < channels.length; i++)
channels[i] = new SoftChannel(this, i);
if (external_channels == null) {
// Always create external_channels array
// with 16 or more channels
// so getChannels works correctly
// when the synhtesizer is closed.
if (channels.length < 16)
external_channels = new SoftChannelProxy[16];
else
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