Android Byte Array to Double Convert bytesLE2doubles(byte[] b)

Description

bytes L Edoubles

License

LGPL

Declaration

public static double[] bytesLE2doubles(byte[] b) 

Method Source Code

//package com.java2s;
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1/*  ww  w .  j  av  a  2  s . co  m*/
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at http://sourceforge.net/projects/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Gunter Zeilinger, Huetteldorferstr. 24/10, 1150 Vienna/Austria/Europe.
 * Portions created by the Initial Developer are Copyright (C) 2002-2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * Gunter Zeilinger <gunterze@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

public class Main {
    public static double[] bytesLE2doubles(byte[] b) {
        if (b == null)
            return null;
        if ((b.length & 0x7) != 0)
            throw new IllegalArgumentException("byte[" + b.length + "]");
        double[] val = new double[b.length >> 3];
        for (int i = 0; i < val.length; i++)
            val[i] = bytesLE2double(b, i << 3);
        return val;
    }

    public static double bytesLE2double(byte[] b, int off) {
        return Double.longBitsToDouble(bytesLE2long(b, off));
    }

    public static long bytesLE2long(byte[] b, int off) {
        return ((b[off + 7] & 0xffL) << 56) | ((b[off + 6] & 0xffL) << 48)
                | ((b[off + 5] & 0xffL) << 40)
                | ((b[off + 4] & 0xffL) << 32)
                | ((b[off + 3] & 0xffL) << 24)
                | ((b[off + 2] & 0xffL) << 16)
                | ((b[off + 1] & 0xffL) << 8) | (b[off] & 0xffL);
    }
}

Related

1. bytesBE2double(byte[] b, int off)
2. bytesBE2doubles(byte[] b)
3. bytesLE2double(byte[] b, int off)
4. getDouble(byte[] b, int index)
5. getDouble(byte[] buf, boolean bigEndian)
6. getDouble(byte[] bytes)
7. toDouble(byte[] b, int pos)