TransformSwitch.java revision 8729:0242fce0f717 
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
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22 */
23
24/* @test
25   @summary Test ModelStandardTransform transform method */
26
27import com.sun.media.sound.ModelStandardTransform;
28
29public class TransformSwitch {
30
31    private static void assertTrue(boolean value) throws Exception
32    {
33        if(!value)
34            throw new RuntimeException("assertTrue fails!");
35    }
36
37    public static void main(String[] args) throws Exception {
38        ModelStandardTransform transform = new ModelStandardTransform();
39        transform.setTransform(ModelStandardTransform.TRANSFORM_SWITCH);
40
41        transform.setDirection(ModelStandardTransform.DIRECTION_MIN2MAX);
42        transform.setPolarity(ModelStandardTransform.POLARITY_UNIPOLAR);
43        assertTrue(Math.abs(transform.transform(0.2f) - 0.0f) < 0.0001f);
44        assertTrue(Math.abs(transform.transform(0.8f) - 1.0f) < 0.0001f);
45
46        transform.setDirection(ModelStandardTransform.DIRECTION_MAX2MIN);
47        transform.setPolarity(ModelStandardTransform.POLARITY_UNIPOLAR);
48        assertTrue(Math.abs(transform.transform(0.2f) - 1.0f) < 0.0001f);
49        assertTrue(Math.abs(transform.transform(0.8f) - 0.0f) < 0.0001f);
50
51        transform.setDirection(ModelStandardTransform.DIRECTION_MIN2MAX);
52        transform.setPolarity(ModelStandardTransform.POLARITY_BIPOLAR);
53        assertTrue(Math.abs(transform.transform(0.2f) + 1.0f) < 0.0001f);
54        assertTrue(Math.abs(transform.transform(0.8f) - 1.0f) < 0.0001f);
55
56        transform.setDirection(ModelStandardTransform.DIRECTION_MAX2MIN);
57        transform.setPolarity(ModelStandardTransform.POLARITY_BIPOLAR);
58        assertTrue(Math.abs(transform.transform(0.2f) - 1.0f) < 0.0001f);
59        assertTrue(Math.abs(transform.transform(0.8f) + 1.0f) < 0.0001f);
60    }
61}
62