feat(jdk8): move files to new folder to avoid resources compiled.
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jdkSrc/jdk8/javax/sound/midi/Sequence.java
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jdkSrc/jdk8/javax/sound/midi/Sequence.java
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/*
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* Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package javax.sound.midi;
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import java.util.Vector;
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import com.sun.media.sound.MidiUtils;
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/**
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* A <code>Sequence</code> is a data structure containing musical
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* information (often an entire song or composition) that can be played
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* back by a <code>{@link Sequencer}</code> object. Specifically, the
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* <code>Sequence</code> contains timing
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* information and one or more tracks. Each <code>{@link Track track}</code> consists of a
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* series of MIDI events (such as note-ons, note-offs, program changes, and meta-events).
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* The sequence's timing information specifies the type of unit that is used
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* to time-stamp the events in the sequence.
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* <p>
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* A <code>Sequence</code> can be created from a MIDI file by reading the file
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* into an input stream and invoking one of the <code>getSequence</code> methods of
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* {@link MidiSystem}. A sequence can also be built from scratch by adding new
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* <code>Tracks</code> to an empty <code>Sequence</code>, and adding
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* <code>{@link MidiEvent}</code> objects to these <code>Tracks</code>.
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*
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* @see Sequencer#setSequence(java.io.InputStream stream)
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* @see Sequencer#setSequence(Sequence sequence)
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* @see Track#add(MidiEvent)
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* @see MidiFileFormat
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*
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* @author Kara Kytle
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*/
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public class Sequence {
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// Timing types
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/**
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* The tempo-based timing type, for which the resolution is expressed in pulses (ticks) per quarter note.
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* @see #Sequence(float, int)
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*/
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public static final float PPQ = 0.0f;
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/**
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* The SMPTE-based timing type with 24 frames per second (resolution is expressed in ticks per frame).
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* @see #Sequence(float, int)
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*/
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public static final float SMPTE_24 = 24.0f;
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/**
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* The SMPTE-based timing type with 25 frames per second (resolution is expressed in ticks per frame).
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* @see #Sequence(float, int)
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*/
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public static final float SMPTE_25 = 25.0f;
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/**
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* The SMPTE-based timing type with 29.97 frames per second (resolution is expressed in ticks per frame).
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* @see #Sequence(float, int)
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*/
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public static final float SMPTE_30DROP = 29.97f;
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/**
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* The SMPTE-based timing type with 30 frames per second (resolution is expressed in ticks per frame).
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* @see #Sequence(float, int)
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*/
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public static final float SMPTE_30 = 30.0f;
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// Variables
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/**
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* The timing division type of the sequence.
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* @see #PPQ
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* @see #SMPTE_24
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* @see #SMPTE_25
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* @see #SMPTE_30DROP
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* @see #SMPTE_30
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* @see #getDivisionType
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*/
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protected float divisionType;
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/**
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* The timing resolution of the sequence.
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* @see #getResolution
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*/
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protected int resolution;
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/**
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* The MIDI tracks in this sequence.
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* @see #getTracks
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*/
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protected Vector<Track> tracks = new Vector<Track>();
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/**
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* Constructs a new MIDI sequence with the specified timing division
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* type and timing resolution. The division type must be one of the
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* recognized MIDI timing types. For tempo-based timing,
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* <code>divisionType</code> is PPQ (pulses per quarter note) and
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* the resolution is specified in ticks per beat. For SMTPE timing,
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* <code>divisionType</code> specifies the number of frames per
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* second and the resolution is specified in ticks per frame.
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* The sequence will contain no initial tracks. Tracks may be
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* added to or removed from the sequence using <code>{@link #createTrack}</code>
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* and <code>{@link #deleteTrack}</code>.
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*
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* @param divisionType the timing division type (PPQ or one of the SMPTE types)
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* @param resolution the timing resolution
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* @throws InvalidMidiDataException if <code>divisionType</code> is not valid
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*
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* @see #PPQ
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* @see #SMPTE_24
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* @see #SMPTE_25
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* @see #SMPTE_30DROP
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* @see #SMPTE_30
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* @see #getDivisionType
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* @see #getResolution
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* @see #getTracks
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*/
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public Sequence(float divisionType, int resolution) throws InvalidMidiDataException {
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if (divisionType == PPQ)
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this.divisionType = PPQ;
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else if (divisionType == SMPTE_24)
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this.divisionType = SMPTE_24;
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else if (divisionType == SMPTE_25)
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this.divisionType = SMPTE_25;
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else if (divisionType == SMPTE_30DROP)
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this.divisionType = SMPTE_30DROP;
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else if (divisionType == SMPTE_30)
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this.divisionType = SMPTE_30;
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else throw new InvalidMidiDataException("Unsupported division type: " + divisionType);
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this.resolution = resolution;
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}
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/**
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* Constructs a new MIDI sequence with the specified timing division
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* type, timing resolution, and number of tracks. The division type must be one of the
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* recognized MIDI timing types. For tempo-based timing,
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* <code>divisionType</code> is PPQ (pulses per quarter note) and
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* the resolution is specified in ticks per beat. For SMTPE timing,
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* <code>divisionType</code> specifies the number of frames per
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* second and the resolution is specified in ticks per frame.
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* The sequence will be initialized with the number of tracks specified by
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* <code>numTracks</code>. These tracks are initially empty (i.e.
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* they contain only the meta-event End of Track).
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* The tracks may be retrieved for editing using the <code>{@link #getTracks}</code>
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* method. Additional tracks may be added, or existing tracks removed,
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* using <code>{@link #createTrack}</code> and <code>{@link #deleteTrack}</code>.
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*
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* @param divisionType the timing division type (PPQ or one of the SMPTE types)
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* @param resolution the timing resolution
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* @param numTracks the initial number of tracks in the sequence.
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* @throws InvalidMidiDataException if <code>divisionType</code> is not valid
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*
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* @see #PPQ
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* @see #SMPTE_24
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* @see #SMPTE_25
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* @see #SMPTE_30DROP
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* @see #SMPTE_30
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* @see #getDivisionType
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* @see #getResolution
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*/
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public Sequence(float divisionType, int resolution, int numTracks) throws InvalidMidiDataException {
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if (divisionType == PPQ)
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this.divisionType = PPQ;
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else if (divisionType == SMPTE_24)
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this.divisionType = SMPTE_24;
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else if (divisionType == SMPTE_25)
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this.divisionType = SMPTE_25;
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else if (divisionType == SMPTE_30DROP)
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this.divisionType = SMPTE_30DROP;
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else if (divisionType == SMPTE_30)
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this.divisionType = SMPTE_30;
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else throw new InvalidMidiDataException("Unsupported division type: " + divisionType);
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this.resolution = resolution;
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for (int i = 0; i < numTracks; i++) {
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tracks.addElement(new Track());
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}
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}
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/**
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* Obtains the timing division type for this sequence.
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* @return the division type (PPQ or one of the SMPTE types)
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*
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* @see #PPQ
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* @see #SMPTE_24
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* @see #SMPTE_25
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* @see #SMPTE_30DROP
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* @see #SMPTE_30
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* @see #Sequence(float, int)
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* @see MidiFileFormat#getDivisionType()
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*/
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public float getDivisionType() {
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return divisionType;
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}
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/**
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* Obtains the timing resolution for this sequence.
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* If the sequence's division type is PPQ, the resolution is specified in ticks per beat.
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* For SMTPE timing, the resolution is specified in ticks per frame.
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*
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* @return the number of ticks per beat (PPQ) or per frame (SMPTE)
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* @see #getDivisionType
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* @see #Sequence(float, int)
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* @see MidiFileFormat#getResolution()
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*/
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public int getResolution() {
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return resolution;
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}
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/**
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* Creates a new, initially empty track as part of this sequence.
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* The track initially contains the meta-event End of Track.
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* The newly created track is returned. All tracks in the sequence
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* may be retrieved using <code>{@link #getTracks}</code>. Tracks may be
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* removed from the sequence using <code>{@link #deleteTrack}</code>.
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* @return the newly created track
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*/
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public Track createTrack() {
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Track track = new Track();
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tracks.addElement(track);
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return track;
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}
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/**
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* Removes the specified track from the sequence.
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* @param track the track to remove
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* @return <code>true</code> if the track existed in the track and was removed,
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* otherwise <code>false</code>.
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*
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* @see #createTrack
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* @see #getTracks
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*/
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public boolean deleteTrack(Track track) {
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return tracks.removeElement(track);
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}
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/**
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* Obtains an array containing all the tracks in this sequence.
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* If the sequence contains no tracks, an array of length 0 is returned.
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* @return the array of tracks
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*
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* @see #createTrack
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* @see #deleteTrack
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*/
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public Track[] getTracks() {
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// Creation of the non-empty array will be synchronized inside toArray()
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return tracks.toArray(new Track[0]);
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}
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/**
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* Obtains the duration of this sequence, expressed in microseconds.
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* @return this sequence's duration in microseconds.
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*/
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public long getMicrosecondLength() {
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return com.sun.media.sound.MidiUtils.tick2microsecond(this, getTickLength(), null);
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}
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/**
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* Obtains the duration of this sequence, expressed in MIDI ticks.
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*
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* @return this sequence's length in ticks
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*
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* @see #getMicrosecondLength
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*/
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public long getTickLength() {
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long length = 0;
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synchronized(tracks) {
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for(int i=0; i<tracks.size(); i++ ) {
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long temp = ((Track)tracks.elementAt(i)).ticks();
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if( temp>length ) {
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length = temp;
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}
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}
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return length;
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}
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}
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/**
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* Obtains a list of patches referenced in this sequence.
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* This patch list may be used to load the required
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* <code>{@link Instrument}</code> objects
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* into a <code>{@link Synthesizer}</code>.
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*
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* @return an array of <code>{@link Patch}</code> objects used in this sequence
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*
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* @see Synthesizer#loadInstruments(Soundbank, Patch[])
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*/
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public Patch[] getPatchList() {
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// $$kk: 04.09.99: need to implement!!
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return new Patch[0];
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}
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}
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