1 /*
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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).
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25 
26 package com.sun.media.sound;
27 
28 import java.util.Comparator;
29 
30 import javax.sound.midi.Instrument;
31 import javax.sound.midi.Patch;
32 
33 /**
34  * Instrument comparator class.
35  * Used to order instrument by program, bank, percussion.
36  *
37  * @author Karl Helgason
38  */
39 public final class ModelInstrumentComparator implements Comparator<Instrument> {
40 
41     @Override
compare(Instrument arg0, Instrument arg1)42     public int compare(Instrument arg0, Instrument arg1) {
43         Patch p0 = arg0.getPatch();
44         Patch p1 = arg1.getPatch();
45         int a = p0.getBank() * 128 + p0.getProgram();
46         int b = p1.getBank() * 128 + p1.getProgram();
47         if (p0 instanceof ModelPatch) {
48             a += ((ModelPatch)p0).isPercussion() ? 2097152 : 0;
49         }
50         if (p1 instanceof ModelPatch) {
51             b += ((ModelPatch)p1).isPercussion() ? 2097152 : 0;
52         }
53         return a - b;
54     }
55 }
56