/*
 * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/* @test
   @summary Test AudioFloatInputStream read method */

import java.io.*;

import javax.sound.sampled.*;

import com.sun.media.sound.*;

public class Read {
	
	static float[] test_float_array;
	static byte[] test_byte_array;	
	static AudioFormat format = new AudioFormat(44100, 16, 1, true, false);
	
	static AudioFloatInputStream getStream1()
	{
		return AudioFloatInputStream.getInputStream(format, test_byte_array, 0, test_byte_array.length);
	}

	static AudioFloatInputStream getStream2()
	{
		AudioInputStream strm = new AudioInputStream(new ByteArrayInputStream(test_byte_array), format, 1024);
		return AudioFloatInputStream.getInputStream(strm);
	}
	
	static void setUp() throws Exception {
		test_float_array = new float[1024];
		test_byte_array = new byte[1024*format.getFrameSize()];
		for (int i = 0; i < 1024; i++) {
			double ii = i / 1024.0;
			ii = ii * ii;
			test_float_array[i] = (float)Math.sin(10*ii*2*Math.PI);
			test_float_array[i] += (float)Math.sin(1.731 + 2*ii*2*Math.PI);
			test_float_array[i] += (float)Math.sin(0.231 + 6.3*ii*2*Math.PI);
			test_float_array[i] *= 0.3;
		}
		AudioFloatConverter.getConverter(format).toByteArray(test_float_array, test_byte_array);	
	}	
		
	public static void main(String[] args) throws Exception {
		setUp();

		for (int i = 0; i < 2; i++) {
			AudioFloatInputStream stream = null; 
			if(i == 0) stream = getStream1();
			if(i == 1) stream = getStream2();
			float v = 0;
			stream.skip(512);
			v = stream.read();				
			if(!(Math.abs(v - test_float_array[512]) < 0.0001))
			{
				throw new RuntimeException("Read returned unexpected value.");
			}
		}
	}

}