1/*
2 * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24import java.io.ByteArrayInputStream;
25
26import javax.sound.sampled.AudioFormat;
27import javax.sound.sampled.AudioInputStream;
28import javax.sound.sampled.AudioSystem;
29import javax.sound.sampled.Clip;
30import javax.sound.sampled.DataLine;
31import javax.sound.sampled.FloatControl;
32import javax.sound.sampled.LineUnavailableException;
33import javax.sound.sampled.Mixer;
34
35/**
36 * @test
37 * @bug 4385654
38 * @summary Check that the MASTER_GAIN control has a valid precision
39 */
40//public class test047 extends TRTest
41public class FloatControlBug {
42
43    private Clip theClip;
44
45    boolean testPassed = true;
46
47    private AudioFormat.Encoding theEncoding = AudioFormat.Encoding.PCM_SIGNED;
48
49    private float theSampleRate = 44100;
50
51    private int theSampleSize = 16;
52
53    private int theNumberOfChannels = 1;
54
55    private int theFrameSize = 2;
56
57    private float theFrameRate = 44100;
58
59    private boolean isBigEndian = false;
60
61    //_______________________________________________
62    //      Method: runTest
63    //_______________________________________________
64    public boolean runTest() {
65        AudioInputStream theAudioInputStream = new AudioInputStream(
66                new ByteArrayInputStream(new byte[0]),
67                new AudioFormat(44100.0f, 16, 2, true, false), 441000);
68
69        AudioFormat theAudioFormat = theAudioInputStream.getFormat();
70
71        DataLine.Info info = new DataLine.Info(Clip.class, theAudioFormat,
72                                               AudioSystem.NOT_SPECIFIED);
73        try {
74            theClip = (Clip) AudioSystem.getLine(info);
75            theClip.open(theAudioInputStream);
76            FloatControl theFloatControl = (FloatControl) (theClip.getControl(
77                    FloatControl.Type.MASTER_GAIN));
78            float theFloatControlPrecision = theFloatControl.getPrecision();
79            System.out.println(
80                    "theFloatControlPrecision: " + theFloatControlPrecision);
81            System.out.println("Minimum: " + theFloatControl.getMinimum());
82            System.out.println("Maximum: " + theFloatControl.getMaximum());
83            System.out.println("Value  : " + theFloatControl.getValue());
84            testPassed = theFloatControlPrecision > 0;
85        } catch (LineUnavailableException e) {
86            e.printStackTrace();
87            testPassed = true;
88        } catch (Exception e) {
89            e.printStackTrace();
90            testPassed = false;
91        }
92        return testPassed;
93    }
94
95    //_______________________________________________
96    //      Method: main
97    //_______________________________________________
98    public static void main(String[] args) throws Exception {
99        //test047 thisTest = new test047();
100        if (isSoundcardInstalled()) {
101            FloatControlBug thisTest = new FloatControlBug();
102            boolean testResult = thisTest.runTest();
103            if (testResult) {
104                System.out.println("Test passed");
105            } else {
106                System.out.println("Test failed");
107                throw new Exception("Test failed");
108            }
109        }
110    }
111
112    /**
113     * Returns true if at least one soundcard is correctly installed
114     * on the system.
115     */
116    public static boolean isSoundcardInstalled() {
117        boolean result = false;
118        try {
119            Mixer.Info[] mixers = AudioSystem.getMixerInfo();
120            if (mixers.length > 0) {
121                result = AudioSystem.getSourceDataLine(null) != null;
122            }
123        } catch (Exception e) {
124            System.err.println("Exception occured: " + e);
125        }
126        if (!result) {
127            System.err.println(
128                    "Soundcard does not exist or sound drivers not installed!");
129            System.err.println(
130                    "This test requires sound drivers for execution.");
131        }
132        return result;
133    }
134}
135