image-in-browser/lib/common/crc32.d.ts

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

/** @format */
/**
 * Interface representing options for CRC32 calculation.
 */
export interface Crc32Options {
    /** The buffer containing the data to calculate the CRC32 checksum for. */
    buffer: Uint8Array;
    /** The base CRC value to start with (optional). */
    baseCrc?: number;
    /** The position in the buffer to start calculating from (optional). */
    position?: number;
    /** The length of the data to calculate the checksum for (optional). */
    length?: number;
}
/**
 * Abstract class providing CRC32 checksum calculation methods.
 */
export declare abstract class Crc32 {
    /**
     * The CRC32 lookup table.
     * @private
     */
    private static readonly _crcTable;
    /**
     * Creates the CRC32 lookup table.
     * @returns {number[]} The CRC32 lookup table.
     * @private
     */
    private static makeTable;
    /**
     * Calculates the CRC32 checksum for the given options.
     * @param {Crc32Options} opt - The options for CRC32 calculation.
     * @param {Uint8Array} opt.buffer - The buffer containing the data to calculate the CRC32 checksum for.
     * @param {number} [opt.baseCrc] - The base CRC value to start with (optional).
     * @param {number} [opt.position] - The position in the buffer to start calculating from (optional).
     * @param {number} [opt.length] - The length of the data to calculate the checksum for (optional).
     * @returns {number} The calculated CRC32 checksum.
     */
    static getChecksum(opt: Crc32Options): number;
}