145 lines
7.1 KiB
Java
145 lines
7.1 KiB
Java
/*
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* Copyright (c) 2023, 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.
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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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import java.io.ByteArrayInputStream;
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import javax.sound.midi.MidiSystem;
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import javax.sound.midi.Sequence;
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import javax.sound.midi.Track;
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/**
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* @test
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* @bug 8319598
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* @summary SMFParser bug with running status, interrupted by Meta or SysEx messages
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*/
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public class SMFInterruptedRunningStatus {
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public static void main(String[] args) throws Exception {
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byte[][] files = new byte[][] {SMF_1, SMF_2, SMF_3};
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for (int i = 0; i < files.length; i++) {
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Sequence seq = MidiSystem.getSequence(
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new ByteArrayInputStream(files[i]));
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testSequence(seq, i + 1);
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}
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// no exception thrown, all files have been parsed correctly
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System.out.println("Test passed");
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}
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private static void testSequence(Sequence seq, int fileNumber) {
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// check number of tracks and number of events
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Track[] tracks = seq.getTracks();
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if (1 != tracks.length) {
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throw new RuntimeException("file number "
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+ fileNumber + " fails (incorrect number of tracks: "
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+ tracks.length + ")");
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}
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Track track = tracks[0];
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if (7 != track.size()) {
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throw new RuntimeException("file number " + fileNumber
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+ " fails (incorrect number of events: "
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+ track.size() + ")");
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}
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// check status byte of each message
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int[] expectedStatusBytes = new int[] {
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0x90, 0xFF, 0x90, 0x90, 0x90, 0xFF, 0xFF};
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for (int i = 0; i < expectedStatusBytes.length; i++) {
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int expected = expectedStatusBytes[i];
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if (expected != track.get(i).getMessage().getStatus()) {
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throw new RuntimeException("file number " + fileNumber
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+ " fails (wrong status byte in event " + i + ")");
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}
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}
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}
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// MIDI file without running status - should work equally before
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// and after the bugfix
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private static final byte[] SMF_1 = {
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0x4D, 0x54, 0x68, 0x64, 0x00, 0x00, 0x00, 0x06, // file header (start)
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0x00, 0x01, 0x00, 0x01, 0x00, (byte) 0x80, // file header (end)
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0x4D, 0x54, 0x72, 0x6B, 0x00, 0x00, 0x00, 0x24, // track header
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0x00, // delta time
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(byte) 0x90, 0x3C, 0x7F, // Note-ON (C)
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0x40, // delta time
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(byte) 0xFF, 0x01, 0x04, 0x54, 0x65, 0x73, 0x74, // META (text)
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0x20, // delta time
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(byte) 0x90, 0x3C, 0x00, // Note-OFF (C)
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0x20, // delta time
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(byte) 0x90, 0x3E, 0x7F, // Note-ON (D)
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0x60, // delta time
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(byte) 0x90, 0x3E, 0x00, // Note-OFF (D)
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0x20, // delta time
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(byte) 0xFF, 0x01, 0x04, 0x54, 0x65, 0x73, 0x74, // META (text)
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0x00, // delta time
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(byte) 0xFF, 0x2F, 0x00 // META (end of track)
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};
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// MIDI file with running status, interrupted by a META message
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// - failed before the bugfix
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private static final byte[] SMF_2 = {
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0x4D, 0x54, 0x68, 0x64, 0x00, 0x00, 0x00, 0x06, // file header (start)
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0x00, 0x01, 0x00, 0x01, 0x00, (byte) 0x80, // file header (end)
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0x4D, 0x54, 0x72, 0x6B, 0x00, 0x00, 0x00, 0x21, // track header
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0x00, // delta time
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(byte) 0x90, 0x3C, 0x7F, // Note-ON (C)
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0x40, // delta time
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(byte) 0xFF, 0x01, 0x04, 0x54, 0x65, 0x73, 0x74, // META (interruptor)
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0x20, // delta time
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0x3C, 0x00, // Note-OFF (C) - running status
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0x20, // delta time
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0x3E, 0x7F, // Note-ON (D) - running status
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0x60, // delta time
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0x3E, 0x00, // Note-OFF (D) - running status
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0x20, // delta time
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(byte) 0xFF, 0x01, 0x04, 0x54, 0x65, 0x73, 0x74, // META (text)
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0x00, // delta time
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(byte) 0xFF, 0x2F, 0x00 // META (end of track)
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};
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// MIDI file with running status, interrupted by a META message
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// - succeeded before the bugfix but with wrong interpretation of the data
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private static final byte[] SMF_3 = {
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0x4D, 0x54, 0x68, 0x64, 0x00, 0x00, 0x00, 0x06, // file header (start)
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0x00, 0x01, 0x00, 0x01, 0x00, (byte) 0x80, // file header (end)
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0x4D, 0x54, 0x72, 0x6B, 0x00, 0x00, 0x00, 0x21, // track header
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0x00, // delta time
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(byte) 0x90, 0x3C, 0x7F, // Note-ON (C)
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0x40, // delta time
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(byte) 0xFF, 0x01, 0x04, 0x54, 0x65, 0x73, 0x74, // META (interruptor)
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0x20, // delta time
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0x3C, 0x00, // Note-OFF (C) - running status
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0x0D, // delta time
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0x3E, 0x7F, // Note-ON (D) - running status
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0x60, // delta time
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0x3E, 0x00, // Note-OFF (D) - running status
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0x20, // delta time
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(byte) 0xFF, 0x01, 0x04, 0x54, 0x65, 0x73, 0x74, // META (text)
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0x00, // delta time
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(byte) 0xFF, 0x2F, 0x00 // META (end of track)
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};
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}
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