/var/www/greso.tech/server/nsm/node_modules/pngjs/lib
Edit: /var/www/greso.tech/server/nsm/node_modules/pngjs/lib/crc.js (853B)
"use strict";
let crcTable = [];
(function () {
for (let i = 0; i < 256; i++) {
let currentCrc = i;
for (let j = 0; j < 8; j++) {
if (currentCrc & 1) {
currentCrc = 0xedb88320 ^ (currentCrc >>> 1);
} else {
currentCrc = currentCrc >>> 1;
}
}
crcTable[i] = currentCrc;
}
})();
let CrcCalculator = (module.exports = function () {
this._crc = -1;
});
CrcCalculator.prototype.write = function (data) {
for (let i = 0; i < data.length; i++) {
this._crc = crcTable[(this._crc ^ data[i]) & 0xff] ^ (this._crc >>> 8);
}
return true;
};
CrcCalculator.prototype.crc32 = function () {
return this._crc ^ -1;
};
CrcCalculator.crc32 = function (buf) {
let crc = -1;
for (let i = 0; i < buf.length; i++) {
crc = crcTable[(crc ^ buf[i]) & 0xff] ^ (crc >>> 8);
}
return crc ^ -1;
};