func PlanDft2d(in, out [][]complex128, dir Direction, flag Flag) *Plan {
// TODO: check that in and out have the same dimensions
fftw_in := (*C.fftw_complex)((unsafe.Pointer)(&in[0][0]))
fftw_out := (*C.fftw_complex)((unsafe.Pointer)(&out[0][0]))
p := C.fftw_plan_dft_2d((C.int)(len(in)), (C.int)(len(in[0])), fftw_in, fftw_out, C.int(dir), C.uint(flag))
return newPlan(p)
}
// New fftw plan. Destroy() after use.
func New(data [][]complex128) *Plan {
pData := (unsafe.Pointer)(&data[0][0])
return &Plan{
fftwP: C.fftw_plan_dft_2d(
(C.int)(len(data)), // nrows
(C.int)(len(data[0])), // ncolumns
(*C.fftw_complex)(pData), // input slice
(*C.fftw_complex)(pData), // output slice
C.int(C.FFTW_FORWARD),
C.uint(C.FFTW_ESTIMATE)),
}
}
func NewPlan2(in, out *Array2, dir Direction, flag Flag) *Plan {
// TODO: check that in and out have the same dimensions
n0, n1 := in.Dims()
var (
n0_ = C.int(n0)
n1_ = C.int(n1)
in_ = (*C.fftw_complex)(unsafe.Pointer(in.ptr()))
out_ = (*C.fftw_complex)(unsafe.Pointer(out.ptr()))
dir_ = C.int(dir)
flag_ = C.uint(flag)
)
p := C.fftw_plan_dft_2d(n0_, n1_, in_, out_, dir_, flag_)
return &Plan{p}
}