64 lines
2.4 KiB
Java
64 lines
2.4 KiB
Java
/*
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* Copyright (c) 2002, 2013, 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 com.sun.media.sound;
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import javax.sound.midi.*;
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/**
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* optimized FastSysexMessage that doesn't copy the array upon instantiation
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*
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* @author Florian Bomers
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*/
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final class FastSysexMessage extends SysexMessage {
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FastSysexMessage(byte[] data) throws InvalidMidiDataException {
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super(data);
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if (data.length==0 || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7))) {
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super.setMessage(data, data.length); // will throw Exception
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}
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}
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/**
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* The returned array may be larger than this message is.
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* Use getLength() to get the real length of the message.
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*/
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byte[] getReadOnlyMessage() {
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return data;
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}
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// overwrite this method so that the original data array,
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// which is shared among all transmitters, cannot be modified
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public void setMessage(byte[] data, int length) throws InvalidMidiDataException {
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if ((data.length == 0) || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7))) {
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super.setMessage(data, data.length); // will throw Exception
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}
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this.length = length;
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this.data = new byte[this.length];
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System.arraycopy(data, 0, this.data, 0, length);
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}
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} // class FastSysexMessage
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