JDK8/Java8源码在线阅读
/*
* 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.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Stack;
import javax.sound.midi.Instrument;
import javax.sound.midi.Patch;
import javax.sound.midi.Soundbank;
import javax.sound.midi.SoundbankResource;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.AudioFormat.Encoding;
/**
* A DLS Level 1 and Level 2 soundbank reader (from files/url/streams).
*
* @author Karl Helgason
*/
public final class DLSSoundbank implements Soundbank {
static private class DLSID {
long i1;
int s1;
int s2;
int x1;
int x2;
int x3;
int x4;
int x5;
int x6;
int x7;
int x8;
private DLSID() {
}
DLSID(long i1, int s1, int s2, int x1, int x2, int x3, int x4,
int x5, int x6, int x7, int x8) {
this.i1 = i1;
this.s1 = s1;
this.s2 = s2;
this.x1 = x1;
this.x2 = x2;
this.x3 = x3;
this.x4 = x4;
this.x5 = x5;
this.x6 = x6;
this.x7 = x7;
this.x8 = x8;
}
public static DLSID read(RIFFReader riff) throws IOException {
DLSID d = new DLSID();
d.i1 = riff.readUnsignedInt();
d.s1 = riff.readUnsignedShort();
d.s2 = riff.readUnsignedShort();
d.x1 = riff.readUnsignedByte();
d.x2 = riff.readUnsignedByte();
d.x3 = riff.readUnsignedByte();
d.x4 = riff.readUnsignedByte();
d.x5 = riff.readUnsignedByte();
d.x6 = riff.readUnsignedByte();
d.x7 = riff.readUnsignedByte();
d.x8 = riff.readUnsignedByte();
return d;
}
public int hashCode() {
return (int)i1;
}
public boolean equals(Object obj) {
if (!(obj instanceof DLSID)) {
return false;
}
DLSID t = (DLSID) obj;
return i1 == t.i1 && s1 == t.s1 && s2 == t.s2
&& x1 == t.x1 && x2 == t.x2 && x3 == t.x3 && x4 == t.x4
&& x5 == t.x5 && x6 == t.x6 && x7 == t.x7 && x8 == t.x8;
}
}
/** X = X & Y */
private static final int DLS_CDL_AND = 0x0001;
/** X = X | Y */
private static final int DLS_CDL_OR = 0x0002;
/** X = X ^ Y */
private static final int DLS_CDL_XOR = 0x0003;
/** X = X + Y */
private static final int DLS_CDL_ADD = 0x0004;
/** X = X - Y */
private static final int DLS_CDL_SUBTRACT = 0x0005;
/** X = X * Y */
private static final int DLS_CDL_MULTIPLY = 0x0006;
/** X = X / Y */
private static final int DLS_CDL_DIVIDE = 0x0007;
/** X = X && Y */
private static final int DLS_CDL_LOGICAL_AND = 0x0008;
/** X = X || Y */
private static final int DLS_CDL_LOGICAL_OR = 0x0009;
/** X = (X < Y) */
private static final int DLS_CDL_LT = 0x000A;
/** X = (X <= Y) */
private static final int DLS_CDL_LE = 0x000B;
/** X = (X > Y) */
private static final int DLS_CDL_GT = 0x000C;
/** X = (X >= Y) */
private static final int DLS_CDL_GE = 0x000D;
/** X = (X == Y) */
private static final int DLS_CDL_EQ = 0x000E;
/** X = !X */
private static final int DLS_CDL_NOT = 0x000F;
/** 32-bit constant */
private static final int DLS_CDL_CONST = 0x0010;
/** 32-bit value returned from query */
private static final int DLS_CDL_QUERY = 0x0011;
/** 32-bit value returned from query */
private static final int DLS_CDL_QUERYSUPPORTED = 0x0012;
private static final DLSID DLSID_GMInHardware = new DLSID(0x178f2f24,
0xc364, 0x11d1, 0xa7, 0x60, 0x00, 0x00, 0xf8, 0x75, 0xac, 0x12);
private static final DLSID DLSID_GSInHardware = new DLSID(0x178f2f25,
0xc364, 0x11d1, 0xa7, 0x60, 0x00, 0x00, 0xf8, 0x75, 0xac, 0x12);
private static final DLSID DLSID_XGInHardware = new DLSID(0x178f2f26,
0xc364, 0x11d1, 0xa7, 0x60, 0x00, 0x00, 0xf8, 0x75, 0xac, 0x12);
private static final DLSID DLSID_SupportsDLS1 = new DLSID(0x178f2f27,
0xc364, 0x11d1, 0xa7, 0x60, 0x00, 0x00, 0xf8, 0x75, 0xac, 0x12);
private static final DLSID DLSID_SupportsDLS2 = new DLSID(0xf14599e5,
0x4689, 0x11d2, 0xaf, 0xa6, 0x0, 0xaa, 0x0, 0x24, 0xd8, 0xb6);
private static final DLSID DLSID_SampleMemorySize = new DLSID(0x178f2f28,
0xc364, 0x11d1, 0xa7, 0x60, 0x00, 0x00, 0xf8, 0x75, 0xac, 0x12);
private static final DLSID DLSID_ManufacturersID = new DLSID(0xb03e1181,
0x8095, 0x11d2, 0xa1, 0xef, 0x0, 0x60, 0x8, 0x33, 0xdb, 0xd8);
private static final DLSID DLSID_ProductID = new DLSID(0xb03e1182,
0x8095, 0x11d2, 0xa1, 0xef, 0x0, 0x60, 0x8, 0x33, 0xdb, 0xd8);
private static final DLSID DLSID_SamplePlaybackRate = new DLSID(0x2a91f713,
0xa4bf, 0x11d2, 0xbb, 0xdf, 0x0, 0x60, 0x8, 0x33, 0xdb, 0xd8);
private long major = -1;
private long minor = -1;
private final DLSInfo info = new DLSInfo();
private final List<DLSInstrument> instruments = new ArrayList<DLSInstrument>();
private final List<DLSSample> samples = new ArrayList<DLSSample>();
private boolean largeFormat = false;
private File sampleFile;
public DLSSoundbank() {
}
public DLSSoundbank(URL url) throws IOException {
InputStream is = url.openStream();
try {
readSoundbank(is);
} finally {
is.close();
}
}
public DLSSoundbank(File file) throws IOException {
largeFormat = true;
sampleFile = file;
InputStream is = new FileInputStream(file);
try {
readSoundbank(is);
} finally {
is.close();
}
}
public DLSSoundbank(InputStream inputstream) throws IOException {
readSoundbank(inputstream);
}
private void readSoundbank(InputStream inputstream) throws IOException {
RIFFReader riff = new RIFFReader(inputstream);
if (!riff.getFormat().equals("RIFF")) {
throw new RIFFInvalidFormatException(
"Input stream is not a valid RIFF stream!");
}
if (!riff.getType().equals("DLS ")) {
throw new RIFFInvalidFormatException(
"Input stream is not a valid DLS soundbank!");
}
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
if (chunk.getFormat().equals("LIST")) {
if (chunk.getType().equals("INFO"))
readInfoChunk(chunk);
if (chunk.getType().equals("lins"))
readLinsChunk(chunk);
if (chunk.getType().equals("wvpl"))
readWvplChunk(chunk);
} else {
if (chunk.getFormat().equals("cdl ")) {
if (!readCdlChunk(chunk)) {
throw new RIFFInvalidFormatException(
"DLS file isn't supported!");
}
}
if (chunk.getFormat().equals("colh")) {
// skipped because we will load the entire bank into memory
// long instrumentcount = chunk.readUnsignedInt();
// System.out.println("instrumentcount = "+ instrumentcount);
}
if (chunk.getFormat().equals("ptbl")) {
// Pool Table Chunk
// skipped because we will load the entire bank into memory
}
if (chunk.getFormat().equals("vers")) {
major = chunk.readUnsignedInt();
minor = chunk.readUnsignedInt();
}
}
}
for (Map.Entry<DLSRegion, Long> entry : temp_rgnassign.entrySet()) {
entry.getKey().sample = samples.get((int)entry.getValue().longValue());
}
temp_rgnassign = null;
}
private boolean cdlIsQuerySupported(DLSID uuid) {
return uuid.equals(DLSID_GMInHardware)
|| uuid.equals(DLSID_GSInHardware)
|| uuid.equals(DLSID_XGInHardware)
|| uuid.equals(DLSID_SupportsDLS1)
|| uuid.equals(DLSID_SupportsDLS2)
|| uuid.equals(DLSID_SampleMemorySize)
|| uuid.equals(DLSID_ManufacturersID)
|| uuid.equals(DLSID_ProductID)
|| uuid.equals(DLSID_SamplePlaybackRate);
}
private long cdlQuery(DLSID uuid) {
if (uuid.equals(DLSID_GMInHardware))
return 1;
if (uuid.equals(DLSID_GSInHardware))
return 0;
if (uuid.equals(DLSID_XGInHardware))
return 0;
if (uuid.equals(DLSID_SupportsDLS1))
return 1;
if (uuid.equals(DLSID_SupportsDLS2))
return 1;
if (uuid.equals(DLSID_SampleMemorySize))
return Runtime.getRuntime().totalMemory();
if (uuid.equals(DLSID_ManufacturersID))
return 0;
if (uuid.equals(DLSID_ProductID))
return 0;
if (uuid.equals(DLSID_SamplePlaybackRate))
return 44100;
return 0;
}
// Reading cdl-ck Chunk
// "cdl " chunk can only appear inside : DLS,lart,lar2,rgn,rgn2
private boolean readCdlChunk(RIFFReader riff) throws IOException {
DLSID uuid;
long x;
long y;
Stack<Long> stack = new Stack<Long>();
while (riff.available() != 0) {
int opcode = riff.readUnsignedShort();
switch (opcode) {
case DLS_CDL_AND:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(((x != 0) && (y != 0)) ? 1 : 0));
break;
case DLS_CDL_OR:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(((x != 0) || (y != 0)) ? 1 : 0));
break;
case DLS_CDL_XOR:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(((x != 0) ^ (y != 0)) ? 1 : 0));
break;
case DLS_CDL_ADD:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(x + y));
break;
case DLS_CDL_SUBTRACT:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(x - y));
break;
case DLS_CDL_MULTIPLY:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(x * y));
break;
case DLS_CDL_DIVIDE:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(x / y));
break;
case DLS_CDL_LOGICAL_AND:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(((x != 0) && (y != 0)) ? 1 : 0));
break;
case DLS_CDL_LOGICAL_OR:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf(((x != 0) || (y != 0)) ? 1 : 0));
break;
case DLS_CDL_LT:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf((x < y) ? 1 : 0));
break;
case DLS_CDL_LE:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf((x <= y) ? 1 : 0));
break;
case DLS_CDL_GT:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf((x > y) ? 1 : 0));
break;
case DLS_CDL_GE:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf((x >= y) ? 1 : 0));
break;
case DLS_CDL_EQ:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf((x == y) ? 1 : 0));
break;
case DLS_CDL_NOT:
x = stack.pop();
y = stack.pop();
stack.push(Long.valueOf((x == 0) ? 1 : 0));
break;
case DLS_CDL_CONST:
stack.push(Long.valueOf(riff.readUnsignedInt()));
break;
case DLS_CDL_QUERY:
uuid = DLSID.read(riff);
stack.push(cdlQuery(uuid));
break;
case DLS_CDL_QUERYSUPPORTED:
uuid = DLSID.read(riff);
stack.push(Long.valueOf(cdlIsQuerySupported(uuid) ? 1 : 0));
break;
default:
break;
}
}
if (stack.isEmpty())
return false;
return stack.pop() == 1;
}
private void readInfoChunk(RIFFReader riff) throws IOException {
info.name = null;
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
String format = chunk.getFormat();
if (format.equals("INAM"))
info.name = chunk.readString(chunk.available());
else if (format.equals("ICRD"))
info.creationDate = chunk.readString(chunk.available());
else if (format.equals("IENG"))
info.engineers = chunk.readString(chunk.available());
else if (format.equals("IPRD"))
info.product = chunk.readString(chunk.available());
else if (format.equals("ICOP"))
info.copyright = chunk.readString(chunk.available());
else if (format.equals("ICMT"))
info.comments = chunk.readString(chunk.available());
else if (format.equals("ISFT"))
info.tools = chunk.readString(chunk.available());
else if (format.equals("IARL"))
info.archival_location = chunk.readString(chunk.available());
else if (format.equals("IART"))
info.artist = chunk.readString(chunk.available());
else if (format.equals("ICMS"))
info.commissioned = chunk.readString(chunk.available());
else if (format.equals("IGNR"))
info.genre = chunk.readString(chunk.available());
else if (format.equals("IKEY"))
info.keywords = chunk.readString(chunk.available());
else if (format.equals("IMED"))
info.medium = chunk.readString(chunk.available());
else if (format.equals("ISBJ"))
info.subject = chunk.readString(chunk.available());
else if (format.equals("ISRC"))
info.source = chunk.readString(chunk.available());
else if (format.equals("ISRF"))
info.source_form = chunk.readString(chunk.available());
else if (format.equals("ITCH"))
info.technician = chunk.readString(chunk.available());
}
}
private void readLinsChunk(RIFFReader riff) throws IOException {
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
if (chunk.getFormat().equals("LIST")) {
if (chunk.getType().equals("ins "))
readInsChunk(chunk);
}
}
}
private void readInsChunk(RIFFReader riff) throws IOException {
DLSInstrument instrument = new DLSInstrument(this);
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
String format = chunk.getFormat();
if (format.equals("LIST")) {
if (chunk.getType().equals("INFO")) {
readInsInfoChunk(instrument, chunk);
}
if (chunk.getType().equals("lrgn")) {
while (chunk.hasNextChunk()) {
RIFFReader subchunk = chunk.nextChunk();
if (subchunk.getFormat().equals("LIST")) {
if (subchunk.getType().equals("rgn ")) {
DLSRegion split = new DLSRegion();
if (readRgnChunk(split, subchunk))
instrument.getRegions().add(split);
}
if (subchunk.getType().equals("rgn2")) {
// support for DLS level 2 regions
DLSRegion split = new DLSRegion();
if (readRgnChunk(split, subchunk))
instrument.getRegions().add(split);
}
}
}
}
if (chunk.getType().equals("lart")) {
List<DLSModulator> modlist = new ArrayList<DLSModulator>();
while (chunk.hasNextChunk()) {
RIFFReader subchunk = chunk.nextChunk();
if (chunk.getFormat().equals("cdl ")) {
if (!readCdlChunk(chunk)) {
modlist.clear();
break;
}
}
if (subchunk.getFormat().equals("art1"))
readArt1Chunk(modlist, subchunk);
}
instrument.getModulators().addAll(modlist);
}
if (chunk.getType().equals("lar2")) {
// support for DLS level 2 ART
List<DLSModulator> modlist = new ArrayList<DLSModulator>();
while (chunk.hasNextChunk()) {
RIFFReader subchunk = chunk.nextChunk();
if (chunk.getFormat().equals("cdl ")) {
if (!readCdlChunk(chunk)) {
modlist.clear();
break;
}
}
if (subchunk.getFormat().equals("art2"))
readArt2Chunk(modlist, subchunk);
}
instrument.getModulators().addAll(modlist);
}
} else {
if (format.equals("dlid")) {
instrument.guid = new byte[16];
chunk.readFully(instrument.guid);
}
if (format.equals("insh")) {
chunk.readUnsignedInt(); // Read Region Count - ignored
int bank = chunk.read(); // LSB
bank += (chunk.read() & 127) << 7; // MSB
chunk.read(); // Read Reserved byte
int drumins = chunk.read(); // Drum Instrument
int id = chunk.read() & 127; // Read only first 7 bits
chunk.read(); // Read Reserved byte
chunk.read(); // Read Reserved byte
chunk.read(); // Read Reserved byte
instrument.bank = bank;
instrument.preset = (int) id;
instrument.druminstrument = (drumins & 128) > 0;
//System.out.println("bank="+bank+" drumkit="+drumkit
// +" id="+id);
}
}
}
instruments.add(instrument);
}
private void readArt1Chunk(List<DLSModulator> modulators, RIFFReader riff)
throws IOException {
long size = riff.readUnsignedInt();
long count = riff.readUnsignedInt();
if (size - 8 != 0)
riff.skipBytes(size - 8);
for (int i = 0; i < count; i++) {
DLSModulator modulator = new DLSModulator();
modulator.version = 1;
modulator.source = riff.readUnsignedShort();
modulator.control = riff.readUnsignedShort();
modulator.destination = riff.readUnsignedShort();
modulator.transform = riff.readUnsignedShort();
modulator.scale = riff.readInt();
modulators.add(modulator);
}
}
private void readArt2Chunk(List<DLSModulator> modulators, RIFFReader riff)
throws IOException {
long size = riff.readUnsignedInt();
long count = riff.readUnsignedInt();
if (size - 8 != 0)
riff.skipBytes(size - 8);
for (int i = 0; i < count; i++) {
DLSModulator modulator = new DLSModulator();
modulator.version = 2;
modulator.source = riff.readUnsignedShort();
modulator.control = riff.readUnsignedShort();
modulator.destination = riff.readUnsignedShort();
modulator.transform = riff.readUnsignedShort();
modulator.scale = riff.readInt();
modulators.add(modulator);
}
}
private Map<DLSRegion, Long> temp_rgnassign = new HashMap<DLSRegion, Long>();
private boolean readRgnChunk(DLSRegion split, RIFFReader riff)
throws IOException {
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
String format = chunk.getFormat();
if (format.equals("LIST")) {
if (chunk.getType().equals("lart")) {
List<DLSModulator> modlist = new ArrayList<DLSModulator>();
while (chunk.hasNextChunk()) {
RIFFReader subchunk = chunk.nextChunk();
if (chunk.getFormat().equals("cdl ")) {
if (!readCdlChunk(chunk)) {
modlist.clear();
break;
}
}
if (subchunk.getFormat().equals("art1"))
readArt1Chunk(modlist, subchunk);
}
split.getModulators().addAll(modlist);
}
if (chunk.getType().equals("lar2")) {
// support for DLS level 2 ART
List<DLSModulator> modlist = new ArrayList<DLSModulator>();
while (chunk.hasNextChunk()) {
RIFFReader subchunk = chunk.nextChunk();
if (chunk.getFormat().equals("cdl ")) {
if (!readCdlChunk(chunk)) {
modlist.clear();
break;
}
}
if (subchunk.getFormat().equals("art2"))
readArt2Chunk(modlist, subchunk);
}
split.getModulators().addAll(modlist);
}
} else {
if (format.equals("cdl ")) {
if (!readCdlChunk(chunk))
return false;
}
if (format.equals("rgnh")) {
split.keyfrom = chunk.readUnsignedShort();
split.keyto = chunk.readUnsignedShort();
split.velfrom = chunk.readUnsignedShort();
split.velto = chunk.readUnsignedShort();
split.options = chunk.readUnsignedShort();
split.exclusiveClass = chunk.readUnsignedShort();
}
if (format.equals("wlnk")) {
split.fusoptions = chunk.readUnsignedShort();
split.phasegroup = chunk.readUnsignedShort();
split.channel = chunk.readUnsignedInt();
long sampleid = chunk.readUnsignedInt();
temp_rgnassign.put(split, sampleid);
}
if (format.equals("wsmp")) {
split.sampleoptions = new DLSSampleOptions();
readWsmpChunk(split.sampleoptions, chunk);
}
}
}
return true;
}
private void readWsmpChunk(DLSSampleOptions sampleOptions, RIFFReader riff)
throws IOException {
long size = riff.readUnsignedInt();
sampleOptions.unitynote = riff.readUnsignedShort();
sampleOptions.finetune = riff.readShort();
sampleOptions.attenuation = riff.readInt();
sampleOptions.options = riff.readUnsignedInt();
long loops = riff.readInt();
if (size > 20)
riff.skipBytes(size - 20);
for (int i = 0; i < loops; i++) {
DLSSampleLoop loop = new DLSSampleLoop();
long size2 = riff.readUnsignedInt();
loop.type = riff.readUnsignedInt();
loop.start = riff.readUnsignedInt();
loop.length = riff.readUnsignedInt();
sampleOptions.loops.add(loop);
if (size2 > 16)
riff.skipBytes(size2 - 16);
}
}
private void readInsInfoChunk(DLSInstrument dlsinstrument, RIFFReader riff)
throws IOException {
dlsinstrument.info.name = null;
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
String format = chunk.getFormat();
if (format.equals("INAM")) {
dlsinstrument.info.name = chunk.readString(chunk.available());
} else if (format.equals("ICRD")) {
dlsinstrument.info.creationDate =
chunk.readString(chunk.available());
} else if (format.equals("IENG")) {
dlsinstrument.info.engineers =
chunk.readString(chunk.available());
} else if (format.equals("IPRD")) {
dlsinstrument.info.product = chunk.readString(chunk.available());
} else if (format.equals("ICOP")) {
dlsinstrument.info.copyright =
chunk.readString(chunk.available());
} else if (format.equals("ICMT")) {
dlsinstrument.info.comments =
chunk.readString(chunk.available());
} else if (format.equals("ISFT")) {
dlsinstrument.info.tools = chunk.readString(chunk.available());
} else if (format.equals("IARL")) {
dlsinstrument.info.archival_location =
chunk.readString(chunk.available());
} else if (format.equals("IART")) {
dlsinstrument.info.artist = chunk.readString(chunk.available());
} else if (format.equals("ICMS")) {
dlsinstrument.info.commissioned =
chunk.readString(chunk.available());
} else if (format.equals("IGNR")) {
dlsinstrument.info.genre = chunk.readString(chunk.available());
} else if (format.equals("IKEY")) {
dlsinstrument.info.keywords =
chunk.readString(chunk.available());
} else if (format.equals("IMED")) {
dlsinstrument.info.medium = chunk.readString(chunk.available());
} else if (format.equals("ISBJ")) {
dlsinstrument.info.subject = chunk.readString(chunk.available());
} else if (format.equals("ISRC")) {
dlsinstrument.info.source = chunk.readString(chunk.available());
} else if (format.equals("ISRF")) {
dlsinstrument.info.source_form =
chunk.readString(chunk.available());
} else if (format.equals("ITCH")) {
dlsinstrument.info.technician =
chunk.readString(chunk.available());
}
}
}
private void readWvplChunk(RIFFReader riff) throws IOException {
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
if (chunk.getFormat().equals("LIST")) {
if (chunk.getType().equals("wave"))
readWaveChunk(chunk);
}
}
}
private void readWaveChunk(RIFFReader riff) throws IOException {
DLSSample sample = new DLSSample(this);
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
String format = chunk.getFormat();
if (format.equals("LIST")) {
if (chunk.getType().equals("INFO")) {
readWaveInfoChunk(sample, chunk);
}
} else {
if (format.equals("dlid")) {
sample.guid = new byte[16];
chunk.readFully(sample.guid);
}
if (format.equals("fmt ")) {
int sampleformat = chunk.readUnsignedShort();
if (sampleformat != 1 && sampleformat != 3) {
throw new RIFFInvalidDataException(
"Only PCM samples are supported!");
}
int channels = chunk.readUnsignedShort();
long samplerate = chunk.readUnsignedInt();
// bytes per sec
/* long framerate = */ chunk.readUnsignedInt();
// block align, framesize
int framesize = chunk.readUnsignedShort();
int bits = chunk.readUnsignedShort();
AudioFormat audioformat = null;
if (sampleformat == 1) {
if (bits == 8) {
audioformat = new AudioFormat(
Encoding.PCM_UNSIGNED, samplerate, bits,
channels, framesize, samplerate, false);
} else {
audioformat = new AudioFormat(
Encoding.PCM_SIGNED, samplerate, bits,
channels, framesize, samplerate, false);
}
}
if (sampleformat == 3) {
audioformat = new AudioFormat(
Encoding.PCM_FLOAT, samplerate, bits,
channels, framesize, samplerate, false);
}
sample.format = audioformat;
}
if (format.equals("data")) {
if (largeFormat) {
sample.setData(new ModelByteBuffer(sampleFile,
chunk.getFilePointer(), chunk.available()));
} else {
byte[] buffer = new byte[chunk.available()];
// chunk.read(buffer);
sample.setData(buffer);
int read = 0;
int avail = chunk.available();
while (read != avail) {
if (avail - read > 65536) {
chunk.readFully(buffer, read, 65536);
read += 65536;
} else {
chunk.readFully(buffer, read, avail - read);
read = avail;
}
}
}
}
if (format.equals("wsmp")) {
sample.sampleoptions = new DLSSampleOptions();
readWsmpChunk(sample.sampleoptions, chunk);
}
}
}
samples.add(sample);
}
private void readWaveInfoChunk(DLSSample dlssample, RIFFReader riff)
throws IOException {
dlssample.info.name = null;
while (riff.hasNextChunk()) {
RIFFReader chunk = riff.nextChunk();
String format = chunk.getFormat();
if (format.equals("INAM")) {
dlssample.info.name = chunk.readString(chunk.available());
} else if (format.equals("ICRD")) {
dlssample.info.creationDate =
chunk.readString(chunk.available());
} else if (format.equals("IENG")) {
dlssample.info.engineers = chunk.readString(chunk.available());
} else if (format.equals("IPRD")) {
dlssample.info.product = chunk.readString(chunk.available());
} else if (format.equals("ICOP")) {
dlssample.info.copyright = chunk.readString(chunk.available());
} else if (format.equals("ICMT")) {
dlssample.info.comments = chunk.readString(chunk.available());
} else if (format.equals("ISFT")) {
dlssample.info.tools = chunk.readString(chunk.available());
} else if (format.equals("IARL")) {
dlssample.info.archival_location =
chunk.readString(chunk.available());
} else if (format.equals("IART")) {
dlssample.info.artist = chunk.readString(chunk.available());
} else if (format.equals("ICMS")) {
dlssample.info.commissioned =
chunk.readString(chunk.available());
} else if (format.equals("IGNR")) {
dlssample.info.genre = chunk.readString(chunk.available());
} else if (format.equals("IKEY")) {
dlssample.info.keywords = chunk.readString(chunk.available());
} else if (format.equals("IMED")) {
dlssample.info.medium = chunk.readString(chunk.available());
} else if (format.equals("ISBJ")) {
dlssample.info.subject = chunk.readString(chunk.available());
} else if (format.equals("ISRC")) {
dlssample.info.source = chunk.readString(chunk.available());
} else if (format.equals("ISRF")) {
dlssample.info.source_form = chunk.readString(chunk.available());
} else if (format.equals("ITCH")) {
dlssample.info.technician = chunk.readString(chunk.available());
}
}
}
public void save(String name) throws IOException {
writeSoundbank(new RIFFWriter(name, "DLS "));
}
public void save(File file) throws IOException {
writeSoundbank(new RIFFWriter(file, "DLS "));
}
public void save(OutputStream out) throws IOException {
writeSoundbank(new RIFFWriter(out, "DLS "));
}
private void writeSoundbank(RIFFWriter writer) throws IOException {
RIFFWriter colh_chunk = writer.writeChunk("colh");
colh_chunk.writeUnsignedInt(instruments.size());
if (major != -1 && minor != -1) {
RIFFWriter vers_chunk = writer.writeChunk("vers");
vers_chunk.writeUnsignedInt(major);
vers_chunk.writeUnsignedInt(minor);
}
writeInstruments(writer.writeList("lins"));
RIFFWriter ptbl = writer.writeChunk("ptbl");
ptbl.writeUnsignedInt(8);
ptbl.writeUnsignedInt(samples.size());
long ptbl_offset = writer.getFilePointer();
for (int i = 0; i < samples.size(); i++)
ptbl.writeUnsignedInt(0);
RIFFWriter wvpl = writer.writeList("wvpl");
long off = wvpl.getFilePointer();
List<Long> offsettable = new ArrayList<Long>();
for (DLSSample sample : samples) {
offsettable.add(Long.valueOf(wvpl.getFilePointer() - off));
writeSample(wvpl.writeList("wave"), sample);
}
// small cheat, we are going to rewrite data back in wvpl
long bak = writer.getFilePointer();
writer.seek(ptbl_offset);
writer.setWriteOverride(true);
for (Long offset : offsettable)
writer.writeUnsignedInt(offset.longValue());
writer.setWriteOverride(false);
writer.seek(bak);
writeInfo(writer.writeList("INFO"), info);
writer.close();
}
private void writeSample(RIFFWriter writer, DLSSample sample)
throws IOException {
AudioFormat audioformat = sample.getFormat();
Encoding encoding = audioformat.getEncoding();
float sampleRate = audioformat.getSampleRate();
int sampleSizeInBits = audioformat.getSampleSizeInBits();
int channels = audioformat.getChannels();
int frameSize = audioformat.getFrameSize();
float frameRate = audioformat.getFrameRate();
boolean bigEndian = audioformat.isBigEndian();
boolean convert_needed = false;
if (audioformat.getSampleSizeInBits() == 8) {
if (!encoding.equals(Encoding.PCM_UNSIGNED)) {
encoding = Encoding.PCM_UNSIGNED;
convert_needed = true;
}
} else {
if (!encoding.equals(Encoding.PCM_SIGNED)) {
encoding = Encoding.PCM_SIGNED;
convert_needed = true;
}
if (bigEndian) {
bigEndian = false;
convert_needed = true;
}
}
if (convert_needed) {
audioformat = new AudioFormat(encoding, sampleRate,
sampleSizeInBits, channels, frameSize, frameRate, bigEndian);
}
// fmt
RIFFWriter fmt_chunk = writer.writeChunk("fmt ");
int sampleformat = 0;
if (audioformat.getEncoding().equals(Encoding.PCM_UNSIGNED))
sampleformat = 1;
else if (audioformat.getEncoding().equals(Encoding.PCM_SIGNED))
sampleformat = 1;
else if (audioformat.getEncoding().equals(Encoding.PCM_FLOAT))
sampleformat = 3;
fmt_chunk.writeUnsignedShort(sampleformat);
fmt_chunk.writeUnsignedShort(audioformat.getChannels());
fmt_chunk.writeUnsignedInt((long) audioformat.getSampleRate());
long srate = ((long)audioformat.getFrameRate())*audioformat.getFrameSize();
fmt_chunk.writeUnsignedInt(srate);
fmt_chunk.writeUnsignedShort(audioformat.getFrameSize());
fmt_chunk.writeUnsignedShort(audioformat.getSampleSizeInBits());
fmt_chunk.write(0);
fmt_chunk.write(0);
writeSampleOptions(writer.writeChunk("wsmp"), sample.sampleoptions);
if (convert_needed) {
RIFFWriter data_chunk = writer.writeChunk("data");
AudioInputStream stream = AudioSystem.getAudioInputStream(
audioformat, (AudioInputStream)sample.getData());
byte[] buff = new byte[1024];
int ret;
while ((ret = stream.read(buff)) != -1) {
data_chunk.write(buff, 0, ret);
}
} else {
RIFFWriter data_chunk = writer.writeChunk("data");
ModelByteBuffer databuff = sample.getDataBuffer();
databuff.writeTo(data_chunk);
/*
data_chunk.write(databuff.array(),
databuff.arrayOffset(),
databuff.capacity());
*/
}
writeInfo(writer.writeList("INFO"), sample.info);
}
private void writeInstruments(RIFFWriter writer) throws IOException {
for (DLSInstrument instrument : instruments) {
writeInstrument(writer.writeList("ins "), instrument);
}
}
private void writeInstrument(RIFFWriter writer, DLSInstrument instrument)
throws IOException {
int art1_count = 0;
int art2_count = 0;
for (DLSModulator modulator : instrument.getModulators()) {
if (modulator.version == 1)
art1_count++;
if (modulator.version == 2)
art2_count++;
}
for (DLSRegion region : instrument.regions) {
for (DLSModulator modulator : region.getModulators()) {
if (modulator.version == 1)
art1_count++;
if (modulator.version == 2)
art2_count++;
}
}
int version = 1;
if (art2_count > 0)
version = 2;
RIFFWriter insh_chunk = writer.writeChunk("insh");
insh_chunk.writeUnsignedInt(instrument.getRegions().size());
insh_chunk.writeUnsignedInt(instrument.bank +
(instrument.druminstrument ? 2147483648L : 0));
insh_chunk.writeUnsignedInt(instrument.preset);
RIFFWriter lrgn = writer.writeList("lrgn");
for (DLSRegion region: instrument.regions)
writeRegion(lrgn, region, version);
writeArticulators(writer, instrument.getModulators());
writeInfo(writer.writeList("INFO"), instrument.info);
}
private void writeArticulators(RIFFWriter writer,
List<DLSModulator> modulators) throws IOException {
int art1_count = 0;
int art2_count = 0;
for (DLSModulator modulator : modulators) {
if (modulator.version == 1)
art1_count++;
if (modulator.version == 2)
art2_count++;
}
if (art1_count > 0) {
RIFFWriter lar1 = writer.writeList("lart");
RIFFWriter art1 = lar1.writeChunk("art1");
art1.writeUnsignedInt(8);
art1.writeUnsignedInt(art1_count);
for (DLSModulator modulator : modulators) {
if (modulator.version == 1) {
art1.writeUnsignedShort(modulator.source);
art1.writeUnsignedShort(modulator.control);
art1.writeUnsignedShort(modulator.destination);
art1.writeUnsignedShort(modulator.transform);
art1.writeInt(modulator.scale);
}
}
}
if (art2_count > 0) {
RIFFWriter lar2 = writer.writeList("lar2");
RIFFWriter art2 = lar2.writeChunk("art2");
art2.writeUnsignedInt(8);
art2.writeUnsignedInt(art2_count);
for (DLSModulator modulator : modulators) {
if (modulator.version == 2) {
art2.writeUnsignedShort(modulator.source);
art2.writeUnsignedShort(modulator.control);
art2.writeUnsignedShort(modulator.destination);
art2.writeUnsignedShort(modulator.transform);
art2.writeInt(modulator.scale);
}
}
}
}
private void writeRegion(RIFFWriter writer, DLSRegion region, int version)
throws IOException {
RIFFWriter rgns = null;
if (version == 1)
rgns = writer.writeList("rgn ");
if (version == 2)
rgns = writer.writeList("rgn2");
if (rgns == null)
return;
RIFFWriter rgnh = rgns.writeChunk("rgnh");
rgnh.writeUnsignedShort(region.keyfrom);
rgnh.writeUnsignedShort(region.keyto);
rgnh.writeUnsignedShort(region.velfrom);
rgnh.writeUnsignedShort(region.velto);
rgnh.writeUnsignedShort(region.options);
rgnh.writeUnsignedShort(region.exclusiveClass);
if (region.sampleoptions != null)
writeSampleOptions(rgns.writeChunk("wsmp"), region.sampleoptions);
if (region.sample != null) {
if (samples.indexOf(region.sample) != -1) {
RIFFWriter wlnk = rgns.writeChunk("wlnk");
wlnk.writeUnsignedShort(region.fusoptions);
wlnk.writeUnsignedShort(region.phasegroup);
wlnk.writeUnsignedInt(region.channel);
wlnk.writeUnsignedInt(samples.indexOf(region.sample));
}
}
writeArticulators(rgns, region.getModulators());
rgns.close();
}
private void writeSampleOptions(RIFFWriter wsmp,
DLSSampleOptions sampleoptions) throws IOException {
wsmp.writeUnsignedInt(20);
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