TransformSwitch.java revision 829:b06c29386f63 
1/*
2 * Copyright 2007 Sun Microsystems, Inc.  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.  Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26/* @test
27   @summary Test ModelStandardTransform transform method */
28
29import com.sun.media.sound.ModelStandardTransform;
30
31public class TransformSwitch {
32
33    private static void assertTrue(boolean value) throws Exception
34    {
35        if(!value)
36            throw new RuntimeException("assertTrue fails!");
37    }
38
39    public static void main(String[] args) throws Exception {
40        ModelStandardTransform transform = new ModelStandardTransform();
41        transform.setTransform(ModelStandardTransform.TRANSFORM_SWITCH);
42
43        transform.setDirection(ModelStandardTransform.DIRECTION_MIN2MAX);
44        transform.setPolarity(ModelStandardTransform.POLARITY_UNIPOLAR);
45        assertTrue(Math.abs(transform.transform(0.2f) - 0.0f) < 0.0001f);
46        assertTrue(Math.abs(transform.transform(0.8f) - 1.0f) < 0.0001f);
47
48        transform.setDirection(ModelStandardTransform.DIRECTION_MAX2MIN);
49        transform.setPolarity(ModelStandardTransform.POLARITY_UNIPOLAR);
50        assertTrue(Math.abs(transform.transform(0.2f) - 1.0f) < 0.0001f);
51        assertTrue(Math.abs(transform.transform(0.8f) - 0.0f) < 0.0001f);
52
53        transform.setDirection(ModelStandardTransform.DIRECTION_MIN2MAX);
54        transform.setPolarity(ModelStandardTransform.POLARITY_BIPOLAR);
55        assertTrue(Math.abs(transform.transform(0.2f) + 1.0f) < 0.0001f);
56        assertTrue(Math.abs(transform.transform(0.8f) - 1.0f) < 0.0001f);
57
58        transform.setDirection(ModelStandardTransform.DIRECTION_MAX2MIN);
59        transform.setPolarity(ModelStandardTransform.POLARITY_BIPOLAR);
60        assertTrue(Math.abs(transform.transform(0.2f) - 1.0f) < 0.0001f);
61        assertTrue(Math.abs(transform.transform(0.8f) + 1.0f) < 0.0001f);
62    }
63}
64