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.
   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 /* @test
  25    @summary Test SoftTuning load method */
  26 
  27 import java.io.UnsupportedEncodingException;
  28 
  29 import javax.sound.midi.MidiUnavailableException;
  30 import javax.sound.midi.Patch;
  31 import javax.sound.sampled.*;
  32 
  33 import com.sun.media.sound.*;
  34 
  35 public class Load4 {
  36 
  37     private static void assertEquals(Object a, Object b) throws Exception
  38     {
  39         if(!a.equals(b))
  40             throw new RuntimeException("assertEquals fails!");
  41     }
  42 
  43     private static void assertTrue(boolean value) throws Exception
  44     {
  45         if(!value)
  46             throw new RuntimeException("assertTrue fails!");
  47     }
  48 
  49     public static void main(String[] args) throws Exception {
  50         // http://www.midi.org/about-midi/tuning_extens.shtml
  51         // 0x04 KEY-BASED TUNING DUMP
  52         SoftTuning tuning = new SoftTuning();
  53         byte[] name;
  54         name = "Testing123      ".getBytes("ascii");
  55 
  56         int[] msg = new int[25+3*128];
  57         int[] head = {0xf0,0x7e,0x7f,0x08,0x04,0x00,0x00};
  58         int ox = 0;
  59         for (int i = 0; i < head.length; i++)
  60             msg[ox++] = head[i];
  61         for (int i = 0; i < name.length; i++)
  62             msg[ox++] = name[i];
  63         for (int i = 0; i < 128; i++) {
  64             msg[ox++] = i;
  65             msg[ox++] = 64;
  66             msg[ox++] = 0;
  67         }
  68 
  69         // Calc checksum
  70         int x = msg[1] & 0xFF;
  71         for (int i = 2; i < msg.length - 2; i++)
  72             x = x ^ (msg[i] & 0xFF);
  73         msg[ox++] = (x & 127);
  74 
  75         msg[ox++] = 0xf7;
  76         byte[] bmsg = new byte[msg.length];
  77         for (int i = 0; i < bmsg.length; i++)
  78             bmsg[i] = (byte)msg[i];
  79 
  80         tuning.load(bmsg);
  81         assertEquals(tuning.getName(), "Testing123      ");
  82         double[] tunings = tuning.getTuning();
  83         for (int i = 0; i < tunings.length; i++)
  84             assertTrue(Math.abs(tunings[i]-(i*100 + 50)) < 0.00001);
  85 
  86         // Check if tuning fails if checksum is wrong
  87         msg[msg.length - 2] += 10;
  88         for (int i = 0; i < bmsg.length; i++)
  89             bmsg[i] = (byte)msg[i];
  90         tuning = new SoftTuning();
  91         tuning.load(bmsg);
  92         assertTrue(!tuning.getName().equals("Testing123      "));
  93 
  94         // Check if tuning fails if checksum is wrong
  95         msg[msg.length - 2] += 10;
  96         for (int i = 0; i < bmsg.length; i++)
  97             bmsg[i] = (byte)msg[i];
  98         tuning = new SoftTuning();
  99         tuning.load(bmsg);
 100         assertTrue(!tuning.getName().equals("Testing123      "));
 101     }
 102 }