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Java example source code file (DLSInstrument.java)

This example Java source code file (DLSInstrument.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arraylist, audio, dlsinfo, dlsinstrument, dlsmodulator, hashmap, list, midi, modelbytebufferwavetable, modelconnectionblock, modeldestination, modelidentifier, modelpatch, modelperformer, modelsource, sound, string, util

The DLSInstrument.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.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.sound.midi.Patch;

/**
 * This class is used to store information to describe instrument.
 * It contains list of regions and modulators.
 * It is stored inside a "ins " List Chunk inside DLS files.
 * In the DLS documentation a modulator is called articulator.
 *
 * @author Karl Helgason
 */
public final class DLSInstrument extends ModelInstrument {

    int preset = 0;
    int bank = 0;
    boolean druminstrument = false;
    byte[] guid = null;
    DLSInfo info = new DLSInfo();
    List<DLSRegion> regions = new ArrayList();
    List<DLSModulator> modulators = new ArrayList();

    public DLSInstrument() {
        super(null, null, null, null);
    }

    public DLSInstrument(DLSSoundbank soundbank) {
        super(soundbank, null, null, null);
    }

    public DLSInfo getInfo() {
        return info;
    }

    public String getName() {
        return info.name;
    }

    public void setName(String name) {
        info.name = name;
    }

    public ModelPatch getPatch() {
        return new ModelPatch(bank, preset, druminstrument);
    }

    public void setPatch(Patch patch) {
        if (patch instanceof ModelPatch && ((ModelPatch)patch).isPercussion()) {
            druminstrument = true;
            bank = patch.getBank();
            preset = patch.getProgram();
        } else {
            druminstrument = false;
            bank = patch.getBank();
            preset = patch.getProgram();
        }
    }

    public Object getData() {
        return null;
    }

    public List<DLSRegion> getRegions() {
        return regions;
    }

    public List<DLSModulator> getModulators() {
        return modulators;
    }

    public String toString() {
        if (druminstrument)
            return "Drumkit: " + info.name
                    + " bank #" + bank + " preset #" + preset;
        else
            return "Instrument: " + info.name
                    + " bank #" + bank + " preset #" + preset;
    }

    private ModelIdentifier convertToModelDest(int dest) {
        if (dest == DLSModulator.CONN_DST_NONE)
            return null;
        if (dest == DLSModulator.CONN_DST_GAIN)
            return ModelDestination.DESTINATION_GAIN;
        if (dest == DLSModulator.CONN_DST_PITCH)
            return ModelDestination.DESTINATION_PITCH;
        if (dest == DLSModulator.CONN_DST_PAN)
            return ModelDestination.DESTINATION_PAN;

        if (dest == DLSModulator.CONN_DST_LFO_FREQUENCY)
            return ModelDestination.DESTINATION_LFO1_FREQ;
        if (dest == DLSModulator.CONN_DST_LFO_STARTDELAY)
            return ModelDestination.DESTINATION_LFO1_DELAY;

        if (dest == DLSModulator.CONN_DST_EG1_ATTACKTIME)
            return ModelDestination.DESTINATION_EG1_ATTACK;
        if (dest == DLSModulator.CONN_DST_EG1_DECAYTIME)
            return ModelDestination.DESTINATION_EG1_DECAY;
        if (dest == DLSModulator.CONN_DST_EG1_RELEASETIME)
            return ModelDestination.DESTINATION_EG1_RELEASE;
        if (dest == DLSModulator.CONN_DST_EG1_SUSTAINLEVEL)
            return ModelDestination.DESTINATION_EG1_SUSTAIN;

        if (dest == DLSModulator.CONN_DST_EG2_ATTACKTIME)
            return ModelDestination.DESTINATION_EG2_ATTACK;
        if (dest == DLSModulator.CONN_DST_EG2_DECAYTIME)
            return ModelDestination.DESTINATION_EG2_DECAY;
        if (dest == DLSModulator.CONN_DST_EG2_RELEASETIME)
            return ModelDestination.DESTINATION_EG2_RELEASE;
        if (dest == DLSModulator.CONN_DST_EG2_SUSTAINLEVEL)
            return ModelDestination.DESTINATION_EG2_SUSTAIN;

        // DLS2 Destinations
        if (dest == DLSModulator.CONN_DST_KEYNUMBER)
            return ModelDestination.DESTINATION_KEYNUMBER;

        if (dest == DLSModulator.CONN_DST_CHORUS)
            return ModelDestination.DESTINATION_CHORUS;
        if (dest == DLSModulator.CONN_DST_REVERB)
            return ModelDestination.DESTINATION_REVERB;

        if (dest == DLSModulator.CONN_DST_VIB_FREQUENCY)
            return ModelDestination.DESTINATION_LFO2_FREQ;
        if (dest == DLSModulator.CONN_DST_VIB_STARTDELAY)
            return ModelDestination.DESTINATION_LFO2_DELAY;

        if (dest == DLSModulator.CONN_DST_EG1_DELAYTIME)
            return ModelDestination.DESTINATION_EG1_DELAY;
        if (dest == DLSModulator.CONN_DST_EG1_HOLDTIME)
            return ModelDestination.DESTINATION_EG1_HOLD;
        if (dest == DLSModulator.CONN_DST_EG1_SHUTDOWNTIME)
            return ModelDestination.DESTINATION_EG1_SHUTDOWN;

        if (dest == DLSModulator.CONN_DST_EG2_DELAYTIME)
            return ModelDestination.DESTINATION_EG2_DELAY;
        if (dest == DLSModulator.CONN_DST_EG2_HOLDTIME)
            return ModelDestination.DESTINATION_EG2_HOLD;

        if (dest == DLSModulator.CONN_DST_FILTER_CUTOFF)
            return ModelDestination.DESTINATION_FILTER_FREQ;
        if (dest == DLSModulator.CONN_DST_FILTER_Q)
            return ModelDestination.DESTINATION_FILTER_Q;

        return null;
    }

    private ModelIdentifier convertToModelSrc(int src) {
        if (src == DLSModulator.CONN_SRC_NONE)
            return null;

        if (src == DLSModulator.CONN_SRC_LFO)
            return ModelSource.SOURCE_LFO1;
        if (src == DLSModulator.CONN_SRC_KEYONVELOCITY)
            return ModelSource.SOURCE_NOTEON_VELOCITY;
        if (src == DLSModulator.CONN_SRC_KEYNUMBER)
            return ModelSource.SOURCE_NOTEON_KEYNUMBER;
        if (src == DLSModulator.CONN_SRC_EG1)
            return ModelSource.SOURCE_EG1;
        if (src == DLSModulator.CONN_SRC_EG2)
            return ModelSource.SOURCE_EG2;
        if (src == DLSModulator.CONN_SRC_PITCHWHEEL)
            return ModelSource.SOURCE_MIDI_PITCH;
        if (src == DLSModulator.CONN_SRC_CC1)
            return new ModelIdentifier("midi_cc", "1", 0);
        if (src == DLSModulator.CONN_SRC_CC7)
            return new ModelIdentifier("midi_cc", "7", 0);
        if (src == DLSModulator.CONN_SRC_CC10)
            return new ModelIdentifier("midi_cc", "10", 0);
        if (src == DLSModulator.CONN_SRC_CC11)
            return new ModelIdentifier("midi_cc", "11", 0);
        if (src == DLSModulator.CONN_SRC_RPN0)
            return new ModelIdentifier("midi_rpn", "0", 0);
        if (src == DLSModulator.CONN_SRC_RPN1)
            return new ModelIdentifier("midi_rpn", "1", 0);

        if (src == DLSModulator.CONN_SRC_POLYPRESSURE)
            return ModelSource.SOURCE_MIDI_POLY_PRESSURE;
        if (src == DLSModulator.CONN_SRC_CHANNELPRESSURE)
            return ModelSource.SOURCE_MIDI_CHANNEL_PRESSURE;
        if (src == DLSModulator.CONN_SRC_VIBRATO)
            return ModelSource.SOURCE_LFO2;
        if (src == DLSModulator.CONN_SRC_MONOPRESSURE)
            return ModelSource.SOURCE_MIDI_CHANNEL_PRESSURE;

        if (src == DLSModulator.CONN_SRC_CC91)
            return new ModelIdentifier("midi_cc", "91", 0);
        if (src == DLSModulator.CONN_SRC_CC93)
            return new ModelIdentifier("midi_cc", "93", 0);

        return null;
    }

    private ModelConnectionBlock convertToModel(DLSModulator mod) {
        ModelIdentifier source = convertToModelSrc(mod.getSource());
        ModelIdentifier control = convertToModelSrc(mod.getControl());
        ModelIdentifier destination_id =
                convertToModelDest(mod.getDestination());

        int scale = mod.getScale();
        double f_scale;
        if (scale == Integer.MIN_VALUE)
            f_scale = Double.NEGATIVE_INFINITY;
        else
            f_scale = scale / 65536.0;

        if (destination_id != null) {
            ModelSource src = null;
            ModelSource ctrl = null;
            ModelConnectionBlock block = new ModelConnectionBlock();
            if (control != null) {
                ModelSource s = new ModelSource();
                if (control == ModelSource.SOURCE_MIDI_PITCH) {
                    ((ModelStandardTransform)s.getTransform()).setPolarity(
                            ModelStandardTransform.POLARITY_BIPOLAR);
                } else if (control == ModelSource.SOURCE_LFO1
                        || control == ModelSource.SOURCE_LFO2) {
                    ((ModelStandardTransform)s.getTransform()).setPolarity(
                            ModelStandardTransform.POLARITY_BIPOLAR);
                }
                s.setIdentifier(control);
                block.addSource(s);
                ctrl = s;
            }
            if (source != null) {
                ModelSource s = new ModelSource();
                if (source == ModelSource.SOURCE_MIDI_PITCH) {
                    ((ModelStandardTransform)s.getTransform()).setPolarity(
                            ModelStandardTransform.POLARITY_BIPOLAR);
                } else if (source == ModelSource.SOURCE_LFO1
                        || source == ModelSource.SOURCE_LFO2) {
                    ((ModelStandardTransform)s.getTransform()).setPolarity(
                            ModelStandardTransform.POLARITY_BIPOLAR);
                }
                s.setIdentifier(source);
                block.addSource(s);
                src = s;
            }
            ModelDestination destination = new ModelDestination();
            destination.setIdentifier(destination_id);
            block.setDestination(destination);

            if (mod.getVersion() == 1) {
                //if (mod.getTransform() ==  DLSModulator.CONN_TRN_CONCAVE) {
                //    ((ModelStandardTransform)destination.getTransform())
                //            .setTransform(
                //            ModelStandardTransform.TRANSFORM_CONCAVE);
                //}
                if (mod.getTransform() == DLSModulator.CONN_TRN_CONCAVE) {
                    if (src != null) {
                        ((ModelStandardTransform)src.getTransform())
                                .setTransform(
                                    ModelStandardTransform.TRANSFORM_CONCAVE);
                        ((ModelStandardTransform)src.getTransform())
                                .setDirection(
                                    ModelStandardTransform.DIRECTION_MAX2MIN);
                    }
                    if (ctrl != null) {
                        ((ModelStandardTransform)ctrl.getTransform())
                                .setTransform(
                                    ModelStandardTransform.TRANSFORM_CONCAVE);
                        ((ModelStandardTransform)ctrl.getTransform())
                                .setDirection(
                                    ModelStandardTransform.DIRECTION_MAX2MIN);
                    }
                }

            } else if (mod.getVersion() == 2) {
                int transform = mod.getTransform();
                int src_transform_invert = (transform >> 15) & 1;
                int src_transform_bipolar = (transform >> 14) & 1;
                int src_transform = (transform >> 10) & 8;
                int ctr_transform_invert = (transform >> 9) & 1;
                int ctr_transform_bipolar = (transform >> 8) & 1;
                int ctr_transform = (transform >> 4) & 8;


                if (src != null) {
                    int trans = ModelStandardTransform.TRANSFORM_LINEAR;
                    if (src_transform == DLSModulator.CONN_TRN_SWITCH)
                        trans = ModelStandardTransform.TRANSFORM_SWITCH;
                    if (src_transform == DLSModulator.CONN_TRN_CONCAVE)
                        trans = ModelStandardTransform.TRANSFORM_CONCAVE;
                    if (src_transform == DLSModulator.CONN_TRN_CONVEX)
                        trans = ModelStandardTransform.TRANSFORM_CONVEX;
                    ((ModelStandardTransform)src.getTransform())
                            .setTransform(trans);
                    ((ModelStandardTransform)src.getTransform())
                            .setPolarity(src_transform_bipolar == 1);
                    ((ModelStandardTransform)src.getTransform())
                            .setDirection(src_transform_invert == 1);

                }

                if (ctrl != null) {
                    int trans = ModelStandardTransform.TRANSFORM_LINEAR;
                    if (ctr_transform == DLSModulator.CONN_TRN_SWITCH)
                        trans = ModelStandardTransform.TRANSFORM_SWITCH;
                    if (ctr_transform == DLSModulator.CONN_TRN_CONCAVE)
                        trans = ModelStandardTransform.TRANSFORM_CONCAVE;
                    if (ctr_transform == DLSModulator.CONN_TRN_CONVEX)
                        trans = ModelStandardTransform.TRANSFORM_CONVEX;
                    ((ModelStandardTransform)ctrl.getTransform())
                            .setTransform(trans);
                    ((ModelStandardTransform)ctrl.getTransform())
                            .setPolarity(ctr_transform_bipolar == 1);
                    ((ModelStandardTransform)ctrl.getTransform())
                            .setDirection(ctr_transform_invert == 1);
                }

                /* No output transforms are defined the DLS Level 2
                int out_transform = transform % 8;
                int trans = ModelStandardTransform.TRANSFORM_LINEAR;
                if (out_transform == DLSModulator.CONN_TRN_SWITCH)
                    trans = ModelStandardTransform.TRANSFORM_SWITCH;
                if (out_transform == DLSModulator.CONN_TRN_CONCAVE)
                    trans = ModelStandardTransform.TRANSFORM_CONCAVE;
                if (out_transform == DLSModulator.CONN_TRN_CONVEX)
                    trans = ModelStandardTransform.TRANSFORM_CONVEX;
                if (ctrl != null) {
                    ((ModelStandardTransform)destination.getTransform())
                            .setTransform(trans);
                }
                */

            }

            block.setScale(f_scale);

            return block;
        }

        return null;
    }

    public ModelPerformer[] getPerformers() {
        List<ModelPerformer> performers = new ArrayList();

        Map<String, DLSModulator> modmap = new HashMap();
        for (DLSModulator mod: getModulators()) {
            modmap.put(mod.getSource() + "x" + mod.getControl() + "=" +
                    mod.getDestination(), mod);
        }

        Map<String, DLSModulator> insmodmap =
                new HashMap<String, DLSModulator>();

        for (DLSRegion zone: regions) {
            ModelPerformer performer = new ModelPerformer();
            performer.setName(zone.getSample().getName());
            performer.setSelfNonExclusive((zone.getFusoptions() &
                    DLSRegion.OPTION_SELFNONEXCLUSIVE) != 0);
            performer.setExclusiveClass(zone.getExclusiveClass());
            performer.setKeyFrom(zone.getKeyfrom());
            performer.setKeyTo(zone.getKeyto());
            performer.setVelFrom(zone.getVelfrom());
            performer.setVelTo(zone.getVelto());

            insmodmap.clear();
            insmodmap.putAll(modmap);
            for (DLSModulator mod: zone.getModulators()) {
                insmodmap.put(mod.getSource() + "x" + mod.getControl() + "=" +
                        mod.getDestination(), mod);
            }

            List<ModelConnectionBlock> blocks = performer.getConnectionBlocks();
            for (DLSModulator mod: insmodmap.values()) {
                ModelConnectionBlock p = convertToModel(mod);
                if (p != null)
                    blocks.add(p);
            }


            DLSSample sample = zone.getSample();
            DLSSampleOptions sampleopt = zone.getSampleoptions();
            if (sampleopt == null)
                sampleopt = sample.getSampleoptions();

            ModelByteBuffer buff = sample.getDataBuffer();

            float pitchcorrection = (-sampleopt.unitynote * 100) +
                    sampleopt.finetune;

            ModelByteBufferWavetable osc = new ModelByteBufferWavetable(buff,
                    sample.getFormat(), pitchcorrection);
            osc.setAttenuation(osc.getAttenuation() / 65536f);
            if (sampleopt.getLoops().size() != 0) {
                DLSSampleLoop loop = sampleopt.getLoops().get(0);
                osc.setLoopStart((int)loop.getStart());
                osc.setLoopLength((int)loop.getLength());
                if (loop.getType() == DLSSampleLoop.LOOP_TYPE_FORWARD)
                    osc.setLoopType(ModelWavetable.LOOP_TYPE_FORWARD);
                if (loop.getType() == DLSSampleLoop.LOOP_TYPE_RELEASE)
                    osc.setLoopType(ModelWavetable.LOOP_TYPE_RELEASE);
                else
                    osc.setLoopType(ModelWavetable.LOOP_TYPE_FORWARD);
            }

            performer.getConnectionBlocks().add(
                    new ModelConnectionBlock(SoftFilter.FILTERTYPE_LP12,
                        new ModelDestination(
                            new ModelIdentifier("filter", "type", 1))));

            performer.getOscillators().add(osc);

            performers.add(performer);

        }

        return performers.toArray(new ModelPerformer[performers.size()]);
    }

    public byte[] getGuid() {
        return guid == null ? null : Arrays.copyOf(guid, guid.length);
    }

    public void setGuid(byte[] guid) {
        this.guid = guid == null ? null : Arrays.copyOf(guid, guid.length);
    }
}

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