Sha256: 0bc15d3f5f59b27d299b7f0a9dbc9def640cbfd131a16493a033be303c89a29b

Contents?: true

Size: 694 Bytes

Versions: 11

Compression:

Stored size: 694 Bytes

Contents

'use strict';

// Note: adler32 takes 12% for level 0 and 2% for level 6.
// It doesn't worth to make additional optimizationa as in original.
// Small size is preferable.

function adler32(adler, buf, len, pos) {
  var s1 = (adler & 0xffff) |0,
      s2 = ((adler >>> 16) & 0xffff) |0,
      n = 0;

  while (len !== 0) {
    // Set limit ~ twice less than 5552, to keep
    // s2 in 31-bits, because we force signed ints.
    // in other case %= will fail.
    n = len > 2000 ? 2000 : len;
    len -= n;

    do {
      s1 = (s1 + buf[pos++]) |0;
      s2 = (s2 + s1) |0;
    } while (--n);

    s1 %= 65521;
    s2 %= 65521;
  }

  return (s1 | (s2 << 16)) |0;
}


module.exports = adler32;

Version data entries

11 entries across 11 versions & 4 rubygems

Version Path
lanes-0.8.0 node_modules/pako/lib/zlib/adler32.js
minimum_viable_product-0.0.11 test/dummy/node_modules/pako/lib/zlib/adler32.js
brwy_rails-0.0.6 test/dummy/node_modules/pako/lib/zlib/adler32.js
brwy_rails-0.0.5 test/dummy/node_modules/pako/lib/zlib/adler32.js
brwy_rails-0.0.4 test/dummy/node_modules/pako/lib/zlib/adler32.js
brwy_rails-0.0.3 test/dummy/node_modules/pako/lib/zlib/adler32.js
brwy_rails-0.0.2 test/dummy/node_modules/pako/lib/zlib/adler32.js
brwy_rails-0.0.1 test/dummy/node_modules/pako/lib/zlib/adler32.js
gulp_assets-1.0.0.pre.5 template/node_modules/node-libs-browser/node_modules/browserify-zlib/node_modules/pako/lib/zlib/adler32.js
gulp_assets-1.0.0.pre.4 template/node_modules/node-libs-browser/node_modules/browserify-zlib/node_modules/pako/lib/zlib/adler32.js
gulp_assets-1.0.0.pre.3 template/node_modules/node-libs-browser/node_modules/browserify-zlib/node_modules/pako/lib/zlib/adler32.js