1 /*
   2  * Copyright (c) 2007, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /* @test
  27    @summary Test SoftTuning load method */
  28 
  29 import java.io.UnsupportedEncodingException;
  30 
  31 import javax.sound.midi.MidiUnavailableException;
  32 import javax.sound.midi.Patch;
  33 import javax.sound.sampled.*;
  34 
  35 import com.sun.media.sound.*;
  36 
  37 public class Load6 {
  38 
  39     private static void assertEquals(Object a, Object b) throws Exception
  40     {
  41         if(!a.equals(b))
  42             throw new RuntimeException("assertEquals fails!");
  43     }
  44 
  45     private static void assertTrue(boolean value) throws Exception
  46     {
  47         if(!value)
  48             throw new RuntimeException("assertTrue fails!");
  49     }
  50 
  51     public static void main(String[] args) throws Exception {
  52         // http://www.midi.org/about-midi/tuning_extens.shtml
  53         // 0x06 SCALE/OCTAVE TUNING DUMP, 2 byte format
  54         SoftTuning tuning = new SoftTuning();
  55 
  56         byte[] name;
  57         name = "Testing123      ".getBytes("ascii");
  58         int[] msg = {0xf0,0x7e,0x7f,0x08,0x06,0,0,
  59                 name[0],name[1],name[2],name[3],name[4],name[5],name[6],
  60                 name[7],name[8],name[9],name[10],name[11],name[12],name[13],
  61                 name[14],name[15],
  62                 5,10,15,20,25,30,35,40,45,50,51,52,
  63                 5,10,15,20,25,30,35,40,45,50,51,52,
  64                 0,0xf7};
  65         // Calc checksum
  66         int x = msg[1] & 0xFF;
  67         for (int i = 2; i < msg.length - 2; i++)
  68             x = x ^ (msg[i] & 0xFF);
  69         msg[msg.length-2] = (x & 127);
  70 
  71         int[] oct = {5,10,15,20,25,30,35,40,45,50,51,52,5,10,15,20,25,30,35,40,45,50,51,52};
  72         byte[] bmsg = new byte[msg.length];
  73         for (int i = 0; i < bmsg.length; i++)
  74             bmsg[i] = (byte)msg[i];
  75         tuning.load(bmsg);
  76         double[] tunings = tuning.getTuning();
  77         for (int i = 0; i < tunings.length; i++)
  78         {
  79             double c = (oct[(i%12)*2]*128 + oct[(i%12)*2+1] -8192)*(100.0/8192.0);
  80             assertTrue(Math.abs(tunings[i]-(i*100 + (c))) < 0.00001);
  81         }
  82 
  83         // Check if tuning fails if checksum is wrong
  84         msg[msg.length - 2] += 10;
  85         for (int i = 0; i < bmsg.length; i++)
  86             bmsg[i] = (byte)msg[i];
  87         tuning = new SoftTuning();
  88         tuning.load(bmsg);
  89         assertTrue(!tuning.getName().equals("Testing123      "));
  90     }
  91 }