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 24 import java.io.ByteArrayInputStream; 25 26 import javax.sound.sampled.AudioFormat; 27 import javax.sound.sampled.AudioInputStream; 28 import javax.sound.sampled.AudioSystem; 29 import javax.sound.sampled.Clip; 30 import javax.sound.sampled.DataLine; 31 import javax.sound.sampled.FloatControl; 32 import javax.sound.sampled.LineUnavailableException; 33 import 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 41 public 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 }