/* * Copyright (c) 2007, 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.Iterator;import java.util.List;import java.util.Map; import javax.sound.midi.Instrument;import javax.sound.midi.Patch;import javax.sound.midi.Soundbank;import javax.sound.midi.SoundbankResource; /** * A SoundFont 2.04 soundbank reader. * * Based on SoundFont 2.04 specification from: * <p>  http://developer.creative.com <br> *      http://www.soundfont.com/ ; * * @author Karl Helgason */public class SF2Soundbank implements Soundbank {     // version of the Sound Font RIFF file    protected int major = 2;    protected int minor = 1;    // target Sound Engine    protected String targetEngine = "EMU8000";    // Sound Font Bank Name    protected String name = "untitled";    // Sound ROM Name    protected String romName = null;    // Sound ROM Version    protected int romVersionMajor = -1;    protected int romVersionMinor = -1;    // Date of Creation of the Bank    protected String creationDate = null;    // Sound Designers and Engineers for the Bank    protected String engineers = null;    // Product for which the Bank was intended    protected String product = null;    // Copyright message    protected String copyright = null;    // Comments    protected String comments = null;    // The SoundFont tools used to create and alter the bank    protected String tools = null;    // The Sample Data loaded from the SoundFont    private ModelByteBuffer sampleData = null;    private ModelByteBuffer sampleData24 = null;    private File sampleFile = null;    private boolean largeFormat = false;    private List<SF2Instrument> instruments = new ArrayList<SF2Instrument>();    private List<SF2Layer> layers = new ArrayList<SF2Layer>();    private List<SF2Sample> samples = new ArrayList<SF2Sample>();     public SF2Soundbank() {    }     public SF2Soundbank(URL url) throws IOException {         InputStream is = url.openStream();        try {            readSoundbank(is);        } finally {            is.close();        }    }     public SF2Soundbank(File file) throws IOException {        largeFormat = true;        sampleFile = file;        InputStream is = new FileInputStream(file);        try {            readSoundbank(is);        } finally {            is.close();        }    }     public SF2Soundbank(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("sfbk")) {            throw new RIFFInvalidFormatException(                    "Input stream is not a valid SoundFont!");        }        while (riff.hasNextChunk()) {            RIFFReader chunk = riff.nextChunk();            if (chunk.getFormat().equals("LIST")) {                if (chunk.getType().equals("INFO"))                    readInfoChunk(chunk);                if (chunk.getType().equals("sdta"))                    readSdtaChunk(chunk);                if (chunk.getType().equals("pdta"))                    readPdtaChunk(chunk);            }        }    }     private void readInfoChunk(RIFFReader riff) throws IOException {        while (riff.hasNextChunk()) {            RIFFReader chunk = riff.nextChunk();            String format = chunk.getFormat();            if (format.equals("ifil")) {                major = chunk.readUnsignedShort();                minor = chunk.readUnsignedShort();            } else if (format.equals("isng")) {                this.targetEngine = chunk.readString(chunk.available());            } else if (format.equals("INAM")) {                this.name = chunk.readString(chunk.available());            } else if (format.equals("irom")) {                this.romName = chunk.readString(chunk.available());            } else if (format.equals("iver")) {                romVersionMajor = chunk.readUnsignedShort();                romVersionMinor = chunk.readUnsignedShort();            } else if (format.equals("ICRD")) {                this.creationDate = chunk.readString(chunk.available());            } else if (format.equals("IENG")) {                this.engineers = chunk.readString(chunk.available());            } else if (format.equals("IPRD")) {                this.product = chunk.readString(chunk.available());            } else if (format.equals("ICOP")) {                this.copyright = chunk.readString(chunk.available());            } else if (format.equals("ICMT")) {                this.comments = chunk.readString(chunk.available());            } else if (format.equals("ISFT")) {                this.tools = chunk.readString(chunk.available());            }         }    }     private void readSdtaChunk(RIFFReader riff) throws IOException {        while (riff.hasNextChunk()) {            RIFFReader chunk = riff.nextChunk();            if (chunk.getFormat().equals("smpl")) {                if (!largeFormat) {                    byte[] sampleData = new byte[chunk.available()];                     int read = 0;                    int avail = chunk.available();                    while (read != avail) {                        if (avail - read > 65536) {                            chunk.readFully(sampleData, read, 65536);                            read += 65536;                        } else {                            chunk.readFully(sampleData, read, avail - read);                            read = avail;                        }                     }                    this.sampleData = new ModelByteBuffer(sampleData);                    //chunk.read(sampleData);                } else {                    this.sampleData = new ModelByteBuffer(sampleFile,                            chunk.getFilePointer(), chunk.available());                }            }            if (chunk.getFormat().equals("sm24")) {                if (!largeFormat) {                    byte[] sampleData24 = new byte[chunk.available()];                    //chunk.read(sampleData24);                     int read = 0;                    int avail = chunk.available();                    while (read != avail) {                        if (avail - read > 65536) {                            chunk.readFully(sampleData24, read, 65536);                            read += 65536;                        } else {                            chunk.readFully(sampleData24, read, avail - read);                            read = avail;                        }                     }                    this.sampleData24 = new ModelByteBuffer(sampleData24);                } else {                    this.sampleData24 = new ModelByteBuffer(sampleFile,                            chunk.getFilePointer(), chunk.available());                }             }        }    }     private void readPdtaChunk(RIFFReader riff) throws IOException {         List<SF2Instrument> presets = new ArrayList<SF2Instrument>();        List<Integer> presets_bagNdx = new ArrayList<Integer>();        List<SF2InstrumentRegion> presets_splits_gen                = new ArrayList<SF2InstrumentRegion>();        List<SF2InstrumentRegion> presets_splits_mod                = new ArrayList<SF2InstrumentRegion>();         List<SF2Layer> instruments = new ArrayList<SF2Layer>();        List<Integer> instruments_bagNdx = new ArrayList<Integer>();        List<SF2LayerRegion> instruments_splits_gen                = new ArrayList<SF2LayerRegion>();        List<SF2LayerRegion> instruments_splits_mod                = new ArrayList<SF2LayerRegion>();         while (riff.hasNextChunk()) {            RIFFReader chunk = riff.nextChunk();            String format = chunk.getFormat();            if (format.equals("phdr")) {                // Preset Header / Instrument                if (chunk.available() % 38 != 0)                    throw new RIFFInvalidDataException();                int count = chunk.available() / 38;                for (int i = 0; i < count; i++) {                    SF2Instrument preset = new SF2Instrument(this);                    preset.name = chunk.readString(20);                    preset.preset = chunk.readUnsignedShort();                    preset.bank = chunk.readUnsignedShort();                    presets_bagNdx.add(chunk.readUnsignedShort());                    preset.library = chunk.readUnsignedInt();                    preset.genre = chunk.readUnsignedInt();                    preset.morphology = chunk.readUnsignedInt();                    presets.add(preset);                    if (i != count - 1)                        this.instruments.add(preset);                }            } else if (format.equals("pbag")) {                // Preset Zones / Instruments splits                if (chunk.available() % 4 != 0)                    throw new RIFFInvalidDataException();                int count = chunk.available() / 4;                 // Skip first record                {                    int gencount = chunk.readUnsignedShort();                    int modcount = chunk.readUnsignedShort();                    while (presets_splits_gen.size() < gencount)                        presets_splits_gen.add(null);                    while (presets_splits_mod.size() < modcount)                        presets_splits_mod.add(null);                    count--;                }                 int offset = presets_bagNdx.get(0);                // Offset should be 0 (but just case)                for (int i = 0; i < offset; i++) {                    if (count == 0)                        throw new RIFFInvalidDataException();                    int gencount = chunk.readUnsignedShort();                    int modcount = chunk.readUnsignedShort();                    while (presets_splits_gen.size() < gencount)                        presets_splits_gen.add(null);                    while (presets_splits_mod.size() < modcount)                        presets_splits_mod.add(null);                    count--;                }                 for (int i = 0; i < presets_bagNdx.size() - 1; i++) {                    int zone_count = presets_bagNdx.get(i + 1)                                     - presets_bagNdx.get(i);                    SF2Instrument preset = presets.get(i);                    for (int ii = 0; ii < zone_count; ii++) {                        if (count == 0)                            throw new RIFFInvalidDataException();                        int gencount = chunk.readUnsignedShort();                        int modcount = chunk.readUnsignedShort();                        SF2InstrumentRegion split = new SF2InstrumentRegion();                        preset.regions.add(split);                        while (presets_splits_gen.size() < gencount)                            presets_splits_gen.add(split);                        while (presets_splits_mod.size() < modcount)                            presets_splits_mod.add(split);                        count--;                    }                }            } else if (format.equals("pmod")) {                // Preset Modulators / Split Modulators                for (int i = 0; i < presets_splits_mod.size(); i++) {                    SF2Modulator modulator = new SF2Modulator();                    modulator.sourceOperator = chunk.readUnsignedShort();                    modulator.destinationOperator = chunk.readUnsignedShort();                    modulator.amount = chunk.readShort();                    modulator.amountSourceOperator = chunk.readUnsignedShort();                    modulator.transportOperator = chunk.readUnsignedShort();                    SF2InstrumentRegion split = presets_splits_mod.get(i);                    if (split != null)                        split.modulators.add(modulator);                }            } else if (format.equals("pgen")) {                // Preset Generators / Split Generators                for (int i = 0; i < presets_splits_gen.size(); i++) {                    int operator = chunk.readUnsignedShort();                    short amount = chunk.readShort();                    SF2InstrumentRegion split = presets_splits_gen.get(i);                    if (split != null)                        split.generators.put(operator, amount);                }            } else if (format.equals("inst")) {                // Instrument Header / Layers                if (chunk.available() % 22 != 0)                    throw new RIFFInvalidDataException();                int count = chunk.available() / 22;                for (int i = 0; i < count; i++) {                    SF2Layer layer = new SF2Layer(this);                    layer.name = chunk.readString(20);                    instruments_bagNdx.add(chunk.readUnsignedShort());                    instruments.add(layer);                    if (i != count - 1)                        this.layers.add(layer);                }            } else if (format.equals("ibag")) {                // Instrument Zones / Layer splits                if (chunk.available() % 4 != 0)                    throw new RIFFInvalidDataException();                int count = chunk.available() / 4;                 // Skip first record                {                    int gencount = chunk.readUnsignedShort();                    int modcount = chunk.readUnsignedShort();                    while (instruments_splits_gen.size() < gencount)                        instruments_splits_gen.add(null);                    while (instruments_splits_mod.size() < modcount)                        instruments_splits_mod.add(null);                    count--;                }                 int offset = instruments_bagNdx.get(0);                // Offset should be 0 (but just case)                for (int i = 0; i < offset; i++) {                    if (count == 0)                        throw new RIFFInvalidDataException();                    int gencount = chunk.readUnsignedShort();                    int modcount = chunk.readUnsignedShort();                    while (instruments_splits_gen.size() < gencount)                        instruments_splits_gen.add(null);                    while (instruments_splits_mod.size() < modcount)                        instruments_splits_mod.add(null);                    count--;                }                 for (int i = 0; i < instruments_bagNdx.size() - 1; i++) {                    int zone_count = instruments_bagNdx.get(i + 1) - instruments_bagNdx.get(i);                    SF2Layer layer = layers.get(i);                    for (int ii = 0; ii < zone_count; ii++) {                        if (count == 0)                            throw new RIFFInvalidDataException();                        int gencount = chunk.readUnsignedShort();                        int modcount = chunk.readUnsignedShort();                        SF2LayerRegion split = new SF2LayerRegion();                        layer.regions.add(split);                        while (instruments_splits_gen.size() < gencount)                            instruments_splits_gen.add(split);                        while (instruments_splits_mod.size() < modcount)                            instruments_splits_mod.add(split);                        count--;                    }                }             } else if (format.equals("imod")) {                // Instrument Modulators / Split Modulators                for (int i = 0; i < instruments_splits_mod.size(); i++) {                    SF2Modulator modulator = new SF2Modulator();                    modulator.sourceOperator = chunk.readUnsignedShort();                    modulator.destinationOperator = chunk.readUnsignedShort();                    modulator.amount = chunk.readShort();                    modulator.amountSourceOperator = chunk.readUnsignedShort();                    modulator.transportOperator = chunk.readUnsignedShort();                    SF2LayerRegion split = instruments_splits_gen.get(i);                    if (split != null)                        split.modulators.add(modulator);                }            } else if (format.equals("igen")) {                // Instrument Generators / Split Generators                for (int i = 0; i < instruments_splits_gen.size(); i++) {                    int operator = chunk.readUnsignedShort();                    short amount = chunk.readShort();                    SF2LayerRegion split = instruments_splits_gen.get(i);                    if (split != null)                        split.generators.put(operator, amount);                }            } else if (format.equals("shdr")) {                // Sample Headers                if (chunk.available() % 46 != 0)                    throw new RIFFInvalidDataException();                int count = chunk.available() / 46;                for (int i = 0; i < count; i++) {                    SF2Sample sample = new SF2Sample(this);                    sample.name = chunk.readString(20);                    long start = chunk.readUnsignedInt();                    long end = chunk.readUnsignedInt();                    sample.data = sampleData.subbuffer(start * 2, end * 2, true);                    if (sampleData24 != null)                        sample.data24 = sampleData24.subbuffer(start, end, true);                    /*                    sample.data = new ModelByteBuffer(sampleData, (int)(start*2),                            (int)((end - start)*2));                    if (sampleData24 != null)                        sample.data24 = new ModelByteBuffer(sampleData24,                                (int)start, (int)(end - start));                     */                    sample.startLoop = chunk.readUnsignedInt() - start;                    sample.endLoop = chunk.readUnsignedInt() - start;                    if (sample.startLoop < 0)                        sample.startLoop = -1;                    if (sample.endLoop < 0)                        sample.endLoop = -1;                    sample.sampleRate = chunk.readUnsignedInt();                    sample.originalPitch = chunk.readUnsignedByte();                    sample.pitchCorrection = chunk.readByte();                    sample.sampleLink = chunk.readUnsignedShort();                    sample.sampleType = chunk.readUnsignedShort();                    if (i != count - 1)                        this.samples.add(sample);                }            }        }         Iterator<SF2Layer> liter = this.layers.iterator();        while (liter.hasNext()) {            SF2Layer layer = liter.next();            Iterator<SF2LayerRegion> siter = layer.regions.iterator();            SF2Region globalsplit = null;            while (siter.hasNext()) {                SF2LayerRegion split = siter.next();                if (split.generators.get(SF2LayerRegion.GENERATOR_SAMPLEID) != null) {                    int sampleid = split.generators.get(                            SF2LayerRegion.GENERATOR_SAMPLEID);                    split.generators.remove(SF2LayerRegion.GENERATOR_SAMPLEID);                    split.sample = samples.get(sampleid);                } else {                    globalsplit = split;                }            }            if (globalsplit != null) {                layer.getRegions().remove(globalsplit);                SF2GlobalRegion gsplit = new SF2GlobalRegion();                gsplit.generators = globalsplit.generators;                gsplit.modulators = globalsplit.modulators;                layer.setGlobalZone(gsplit);            }        }          Iterator<SF2Instrument> iiter = this.instruments.iterator();        while (iiter.hasNext()) {            SF2Instrument instrument = iiter.next();            Iterator<SF2InstrumentRegion> siter = instrument.regions.iterator();            SF2Region globalsplit = null;            while (siter.hasNext()) {                SF2InstrumentRegion split = siter.next();                if (split.generators.get(SF2LayerRegion.GENERATOR_INSTRUMENT) != null) {                    int instrumentid = split.generators.get(                            SF2InstrumentRegion.GENERATOR_INSTRUMENT);                    split.generators.remove(SF2LayerRegion.GENERATOR_INSTRUMENT);                    split.layer = layers.get(instrumentid);                } else {                    globalsplit = split;                }            }             if (globalsplit != null) {                instrument.getRegions().remove(globalsplit);                SF2GlobalRegion gsplit = new SF2GlobalRegion();                gsplit.generators = globalsplit.generators;

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