function unpackLookupTable(lookup, map, rle) {
    for (let /** @type{number} */ i = 0; i < 256; ++i) {
      lookup[i] = i & 0x3F;
      lookup[512 + i] = i >> 2;
      lookup[1792 + i] = 2 + (i >> 6);
    }
    for (let /** @type{number} */ i = 0; i < 128; ++i) {
      lookup[1024 + i] = 4 * (map.charCodeAt(i) - 32);
    }
    for (let /** @type{number} */ i = 0; i < 64; ++i) {
      lookup[1152 + i] = i & 1;
      lookup[1216 + i] = 2 + (i & 1);
    }
    let /** @type{number} */ offset = 1280;
    for (let /** @type{number} */ k = 0; k < 19; ++k) {
      let /** @type{number} */ value = k & 3;
      let /** @type{number} */ rep = rle.charCodeAt(k) - 32;
      for (let /** @type{number} */ i = 0; i < rep; ++i) {
        lookup[offset++] = value;
      }
    }
    for (let /** @type{number} */ i = 0; i < 16; ++i) {
      lookup[1792 + i] = 1;
      lookup[2032 + i] = 6;
    }
    lookup[1792] = 0;
    lookup[2047] = 7;
    for (let /** @type{number} */ i = 0; i < 256; ++i) {
      lookup[1536 + i] = lookup[1792 + i] << 3;
    }
  }
@param {!Int32Array} lookup
@param {!string} map
@param {!string} rle
@return {void}