vendor/khanamiryan/qrcode-detector-decoder/lib/common/reedsolomon/GenericGF.php

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

<?php
/*
 * Copyright 2007 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Zxing\Common\Reedsolomon;

/**
 * <p>This class contains utility methods for performing mathematical operations over
 * the Galois Fields. Operations use a given primitive polynomial in calculations.</p>
 *
 * <p>Throughout this package, elements of the GF are represented as an {@code int}
 * for convenience and speed (but at the cost of memory).
 * </p>
 *
 * @author Sean Owen
 * @author David Olivier
 */
final class GenericGF {

    public static $AZTEC_DATA_12;
    public static $AZTEC_DATA_10;
    public static $AZTEC_DATA_6;
    public static $AZTEC_PARAM;
    public static $QR_CODE_FIELD_256;
    public static $DATA_MATRIX_FIELD_256;
    public static $AZTEC_DATA_8;
    public static $MAXICODE_FIELD_64;

    private $expTable;
    private $logTable;
    private $zero;
    private $one;
    private $size;
    private $primitive;
    private $generatorBase;


    public static function Init(){
        self::$AZTEC_DATA_12 = new GenericGF(0x1069, 4096, 1); // x^12 + x^6 + x^5 + x^3 + 1
        self::$AZTEC_DATA_10 = new GenericGF(0x409, 1024, 1); // x^10 + x^3 + 1
        self::$AZTEC_DATA_6 = new GenericGF(0x43, 64, 1); // x^6 + x + 1
        self::$AZTEC_PARAM = new GenericGF(0x13, 16, 1); // x^4 + x + 1
        self::$QR_CODE_FIELD_256 = new GenericGF(0x011D, 256, 0); // x^8 + x^4 + x^3 + x^2 + 1
        self::$DATA_MATRIX_FIELD_256 = new GenericGF(0x012D, 256, 1); // x^8 + x^5 + x^3 + x^2 + 1
        self::$AZTEC_DATA_8 = self::$DATA_MATRIX_FIELD_256;
        self::$MAXICODE_FIELD_64 = self::$AZTEC_DATA_6;
    }