Updated a range of operations to use ArrayBuffers instead of byteArrays to improve performance with large files.

This commit is contained in:
n1474335 2019-07-29 17:09:46 +01:00
parent 3a8b362dfd
commit 0e95ad8ed6
37 changed files with 112 additions and 84 deletions

View file

@ -22,19 +22,20 @@ class Fletcher32Checksum extends Operation {
this.module = "Crypto";
this.description = "The Fletcher checksum is an algorithm for computing a position-dependent checksum devised by John Gould Fletcher at Lawrence Livermore Labs in the late 1970s.<br><br>The objective of the Fletcher checksum was to provide error-detection properties approaching those of a cyclic redundancy check but with the lower computational effort associated with summation techniques.";
this.infoURL = "https://wikipedia.org/wiki/Fletcher%27s_checksum#Fletcher-32";
this.inputType = "byteArray";
this.inputType = "ArrayBuffer";
this.outputType = "string";
this.args = [];
}
/**
* @param {byteArray} input
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
let a = 0,
b = 0;
input = new Uint8Array(input);
for (let i = 0; i < input.length; i++) {
a = (a + input[i]) % 0xffff;