Function InitFFT

libraries/lib-fft/FFT.cpp:97–110

}

void InitFFT()
{
   gFFTBitTable.reinit(MaxFastBits);

   size_t len = 2;
   for (size_t b = 1; b <= MaxFastBits; b++) {
      auto &array = gFFTBitTable[b - 1];
      array.reinit(len);
      for (size_t i = 0; i < len; i++)
         array[i] = ReverseBits(i, b);

      len <<= 1;
   }
}

void DeinitFFT()
{