public void AllocateDeviceMemory()
{
int fftWidth = width / 2 + 1;
imgToTrackCplx = new CudaDeviceVariable <float2>(fftWidth * height);
imgRefCplx = new CudaDeviceVariable <float2>(fftWidth * height);
x = new CudaDeviceVariable <int>(1);
y = new CudaDeviceVariable <int>(1);
val = new CudaDeviceVariable <float>(1);
bufferFFT = new CudaDeviceVariable <byte>(FFTBufferSize);
int maxBufferSize = imgToTrackRotated.MaxIndexGetBufferHostSize();
maxBufferSize = Math.Max(maxBufferSize, imgToTrackRotated.MinMaxGetBufferHostSize());
buffer = new CudaDeviceVariable <byte>(maxBufferSize);
forward.SetWorkArea(bufferFFT.DevicePointer);
backward.SetWorkArea(bufferFFT.DevicePointer);
memoryAllocated = true;
}