const SWB_OFFSET_1024_24 = new Uint16Array([
      0,   4,   8,  12,  16,  20,  24,  28,
     32,  36,  40,  44,  52,  60,  68,  76,
     84,  92, 100, 108, 116, 124, 136, 148,
    160, 172, 188, 204, 220, 240, 260, 284,