/// <summary>
/// Creates a 1D plan.
/// </summary>
/// <param name="fftType">Type of FFT.</param>
/// <param name="dataType">The data type.</param>
/// <param name="nx">The length in samples.</param>
/// <param name="batch">The number of FFTs in batch.</param>
/// <returns>
/// Plan.
/// </returns>
public override FFTPlan1D Plan1D(eFFTType fftType, eDataType dataType, int nx, int batch)
{
int insize, outsize;
CUFFTType cuFFTType = VerifyTypes(fftType, dataType, out insize, out outsize);
//Console.WriteLine(size);
IntPtr pin = fftwf.malloc(nx * insize * batch);
IntPtr pout = fftwf.malloc(nx * outsize * batch);
Ifftw_plan fwdPlan;
Ifftw_plan invPlan;
if (dataType == eDataType.Single)
{
if (batch == 1)
{
fwdPlan = fftwf_plan.dft_1d(fftType, nx, pin, pout, fftw_direction.Forward, fftw_flags.Estimate);
invPlan = fftwf_plan.dft_1d(fftType, nx, pin, pout, fftw_direction.Backward, fftw_flags.Estimate);
}
else
{
fwdPlan = fftwf_plan.dft_many(fftType, 1, new int[] { nx }, batch,
pin, null, 1, nx,
pout, null, 1, nx, fftw_direction.Forward, fftw_flags.Estimate);
invPlan = fftwf_plan.dft_many(fftType, 1, new int[] { nx }, batch,
pin, null, 1, nx,
pout, null, 1, nx, fftw_direction.Backward, fftw_flags.Estimate);
}
}
else
{
if (batch == 1)
{
fwdPlan = fftw_plan.dft_1d(fftType, nx, pin, pout, fftw_direction.Forward, fftw_flags.Estimate);
invPlan = fftw_plan.dft_1d(fftType, nx, pin, pout, fftw_direction.Backward, fftw_flags.Estimate);
}
else
{
fwdPlan = fftw_plan.dft_many(fftType, 1, new int[] { nx }, batch,
pin, null, 1, nx,
pout, null, 1, nx, fftw_direction.Forward, fftw_flags.Estimate);
invPlan = fftw_plan.dft_many(fftType, 1, new int[] { nx }, batch,
pin, null, 1, nx,
pout, null, 1, nx, fftw_direction.Backward, fftw_flags.Estimate);
}
}
FFTPlan1D plan = new FFTPlan1D(nx, batch, this);
FFTPlan1DEx planEx = new FFTPlan1DEx(plan)
{
FFTWFwdPlan = fwdPlan, FFTWInvPlan = invPlan, N = nx, DataType = dataType
};
Plans.Add(plan, planEx);
return(plan);
}
/// <summary>
/// Creates a 1D plan.
/// </summary>
/// <param name="fftType">Type of FFT.</param>
/// <param name="dataType">Data type.</param>
/// <param name="nx">The length in samples.</param>
/// <param name="batchSize">The number of FFTs in batch.</param>
/// <returns>Plan.</returns>
public override FFTPlan1D Plan1D(eFFTType fftType, eDataType dataType, int nx, int batchSize)
{
int insize, outsize;
CUFFTType cuFFTType = VerifyTypes(fftType, dataType, out insize, out outsize);
cufftHandle handle = new cufftHandle();
CUFFTResult res;
if (batchSize <= 1)
{
res = _driver.cufftPlan1d(ref handle, nx, cuFFTType, batchSize);
}
else
{
res = _driver.cufftPlanMany(ref handle, 1, new int[] { nx },
null, //inembed
1, //istride 1
0, //idist 0
null, //onembed
1, //ostride 1
0, //odist 0
cuFFTType,
batchSize);
}
if (res != CUFFTResult.Success)
{
throw new CudafyHostException(res.ToString());
}
FFTPlan1D plan = new FFTPlan1D(nx, batchSize, this);
FFTPlan1DEx planEx = new FFTPlan1DEx(plan)
{
CudaFFTHandle = handle, CudaFFTType = cuFFTType, DataType = dataType
};
Plans.Add(plan, planEx);
return(plan);
}
