/*

 * Copyright (c) 2003, 2016, Oracle and/or its affiliates. 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.

 *

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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import javax.sound.sampled.AudioFormat;

import javax.sound.sampled.AudioSystem;

import javax.sound.sampled.DataLine;

import javax.sound.sampled.Line;

import javax.sound.sampled.Mixer;

/**

 * @test

 * @bug 4936397

 * @summary Verify that there'll for a given endianness, there's also the little

 *          endian version

 */

public class BothEndiansAndSigns {

    static boolean failed = false;

    static int testedFormats = 0;

    public static void main(String[] args) throws Exception {

        out("4936397: Verify that there'll for a given endianness, there's also the little endian version");

        out("         and the same for signed'ness for 8-bit formats");

        Mixer.Info[] aInfos = AudioSystem.getMixerInfo();

        for (int i = 0; i < aInfos.length; i++) {

            try {

                Mixer mixer = AudioSystem.getMixer(aInfos[i]);

                out("Mixer "+aInfos[i]);

                checkLines(mixer, mixer.getSourceLineInfo());

                checkLines(mixer, mixer.getTargetLineInfo());

            } catch (Exception e) {

                out("Unexpected exception when getting a mixer: "+e);

            }

        }

        if (testedFormats == 0) {

            out("[No appropriate lines available] - cannot exercise this test.");

        } else {

            if (failed) {

                throw new Exception("Test FAILED!");

            }

            out("Test passed");

        }

    }

    public static void checkLines(Mixer mixer, Line.Info[] infos) {

        for (int i = 0; i<infos.length; i++) {

            try {

                if (infos[i] instanceof DataLine.Info) {

                    DataLine.Info info = (DataLine.Info) infos[i];

                    System.out.println(" Line "+info+" (max. "+mixer.getMaxLines(info)+" simultaneously): ");

                    AudioFormat[] formats = info.getFormats();

                    for (int f = 0; f < formats.length; f++) {

                        try {

                            AudioFormat otherEndianOrSign = getOtherEndianOrSign(formats[f]);

                            if (otherEndianOrSign != null) {

                                checkFormat(formats, otherEndianOrSign);

                            }

                        } catch (Exception e1) {

                            out("  Unexpected exception when getting a format: "+e1);

                        }

                    }

                }

            } catch (Exception e) {

                out(" Unexpected exception when getting a line: "+e);

            }

        }

    }

    public static void checkFormat(AudioFormat[] formats, AudioFormat format) {

        for (int i = 0; i < formats.length; i++) {

            testedFormats++;

            if (formats[i].matches(format)) {

                return;

            }

        }

        out("  ## expected this format: "+format

            +" ("+format.getChannels()+" channels, "

            +"frameSize="+format.getFrameSize()+", "

            +(format.isBigEndian()?"big endian":"little endian")

            +")");

        failed = true;

    }

    public static AudioFormat getOtherEndianOrSign(AudioFormat format) {

        AudioFormat.Encoding newEnc = null;

        boolean newEndian = format.isBigEndian();

        boolean isSigned = format.getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED);

        boolean isUnsigned = format.getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED);

        if ((isSigned || isUnsigned) && format.getSampleSizeInBits() > 0) {

            if (format.getSampleSizeInBits() == 8) {

                // return the other signed'ness

                if (isSigned) {

                    newEnc = AudioFormat.Encoding.PCM_UNSIGNED;

                } else {

                    newEnc = AudioFormat.Encoding.PCM_SIGNED;

                }

            } else {

                newEnc = format.getEncoding();

                newEndian = !newEndian;

            }

            if (newEnc != null) {

                return new AudioFormat(newEnc, format.getSampleRate(),

                                       format.getSampleSizeInBits(),

                                       format.getChannels(),

                                       format.getFrameSize(),

                                       format.getFrameRate(),

                                       newEndian);

            }

        }

        return null;

    }

    static void out(String s) {

        System.out.println(s); System.out.flush();

    }

}