Skip to content

GitLab

Commit fcfd81ff authored by Martin Reinecke's avatar Martin Reinecke
Browse files
Options

Merge branch 'develop' into 'master' 

Develop

See merge request !4
parents cef9199e 8a3d6ff7
Hide whitespace changes
Inline Side-by-side
Showing with 186 additions and 86 deletions
pocketfft_hdronly.h
View file @ fcfd81ff
......@@ -19,6 +19,7 @@
#include <stdexcept>
#include <memory>
#include <vector>
#include <complex>
#if defined(_WIN32)
#include <malloc.h>
#endif
......@@ -36,6 +37,8 @@ namespace pocketfft {
using shape_t = std::vector<size_t>;
using stride_t = std::vector<ptrdiff_t>;
constexpr bool FORWARD = true,
BACKWARD = false;
namespace detail {
......@@ -156,13 +159,29 @@ template<typename T> void ROTM90(cmplx<T> &a)
template<typename T> class sincos_2pibyn
{
private:
template<typename Ta, typename Tb, bool bigger> struct TypeSelector
{};
template<typename Ta, typename Tb> struct TypeSelector<Ta, Tb, true>
{ using type = Ta; };
template<typename Ta, typename Tb> struct TypeSelector<Ta, Tb, false>
{ using type = Tb; };
using Thigh = typename TypeSelector<T, double, (sizeof(T)>sizeof(double))>::type;
arr<T> data;
// adapted from https://stackoverflow.com/questions/42792939/
// CAUTION: this function only works for arguments in the range
// [-0.25; 0.25]!
void my_sincosm1pi (double a, double *restrict res)
void my_sincosm1pi (Thigh a, Thigh *restrict res)
{
if (sizeof(Thigh)>sizeof(double)) // don't have the code for long double
{
Thigh pi = Thigh(3.141592653589793238462643383279502884197L);
res[1] = sin(pi*a);
auto s = res[1];
res[0] = (s*s)/(-sqrt((1-s)*(1+s))-1);
return;
}
double s = a * a;
/* Approximate cos(pi*x)-1 for x in [-0.25,0.25] */
double r = -1.0369917389758117e-4;
......@@ -194,25 +213,25 @@ template<typename T> class sincos_2pibyn
res[0]=1.; res[1]=0.;
if (n==1) return;
size_t l1 = size_t(sqrt(n));
arr<double> tmp(2*l1);
arr<Thigh> tmp(2*l1);
for (size_t i=1; i<l1; ++i)
{
my_sincosm1pi((2.*i)/den,&tmp[2*i]);
my_sincosm1pi((Thigh(2)*i)/den,&tmp[2*i]);
res[2*i ] = tmp[2*i]+1.;
res[2*i+1] = tmp[2*i+1];
}
size_t start=l1;
while(start<n)
{
double cs[2];
my_sincosm1pi((2.*start)/den,cs);
Thigh cs[2];
my_sincosm1pi((Thigh(2)*start)/den,cs);
res[2*start] = cs[0]+1.;
res[2*start+1] = cs[1];
size_t end = l1;
if (start+end>n) end = n-start;
for (size_t i=1; i<end; ++i)
{
double csx[2]={tmp[2*i], tmp[2*i+1]};
Thigh csx[2]={tmp[2*i], tmp[2*i+1]};
res[2*(start+i)] = ((cs[0]*csx[0] - cs[1]*csx[1] + cs[0]) + csx[0]) + 1.;
res[2*(start+i)+1] = (cs[0]*csx[1] + cs[1]*csx[0]) + cs[1] + csx[1];
}
......@@ -253,7 +272,7 @@ template<typename T> class sincos_2pibyn
void fill_first_quadrant(size_t n, T * restrict res)
{
const double hsqt2 = 0.707106781186547524400844362104849;
constexpr Thigh hsqt2 = Thigh(0.707106781186547524400844362104849L);
size_t quart = n>>2;
if ((n&7)==0)
res[quart] = res[quart+1] = hsqt2;
......@@ -336,7 +355,7 @@ struct util // hack to avoid duplicate symbols
static NOINLINE double cost_guess (size_t n)
{
const double lfp=1.1; // penalty for non-hardcoded larger factors
constexpr double lfp=1.1; // penalty for non-hardcoded larger factors
size_t ni=n;
double result=0.;
while ((n&1)==0)
......@@ -377,6 +396,41 @@ struct util // hack to avoid duplicate symbols
res*=sz;
return res;
}
static NOINLINE void sanity_check(const shape_t &shape,
const stride_t &stride_in, const stride_t &stride_out, bool inplace)
{
auto ndim = shape.size();
if (ndim<1) throw runtime_error("ndim must be >= 1");
if ((stride_in.size()!=ndim) || (stride_out.size()!=ndim))
throw runtime_error("stride dimension mismatch");
for (auto shp: shape)
if (shp<1) throw runtime_error("zero extent detected");
if (inplace && (stride_in!=stride_out))
throw runtime_error("stride mismatch");
}
static NOINLINE void sanity_check(const shape_t &shape,
const stride_t &stride_in, const stride_t &stride_out, bool inplace,
const shape_t &axes)
{
sanity_check(shape, stride_in, stride_out, inplace);
auto ndim = shape.size();
shape_t tmp(ndim,0);
for (auto ax : axes)
{
if (ax>=ndim) throw runtime_error("bad axis number");
if (++tmp[ax]>1) throw runtime_error("axis specified repeatedly");
}
}
static NOINLINE void sanity_check(const shape_t &shape,
const stride_t &stride_in, const stride_t &stride_out, bool inplace,
size_t axis)
{
sanity_check(shape, stride_in, stride_out, inplace);
if (axis>=shape.size()) throw runtime_error("bad axis number");
}
};
#define CH(a,b,c) ch[(a)+ido*((b)+l1*(c))]
......@@ -390,7 +444,6 @@ struct util // hack to avoid duplicate symbols
template<typename T0> class cfftp
{
private:
struct fctdata
{
size_t fct;
......@@ -452,7 +505,8 @@ template<bool bwd, typename T> void pass3 (size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const cmplx<T0> * restrict wa)
{
constexpr size_t cdim=3;
constexpr T0 tw1r=-0.5, tw1i= (bwd ? 1.: -1.) * 0.86602540378443864676;
constexpr T0 tw1r=-0.5,
tw1i= (bwd ? 1: -1) * T0(0.8660254037844386467637231707529362L);
if (ido==1)
for (size_t k=0; k<l1; ++k)
......@@ -554,10 +608,10 @@ template<bool bwd, typename T> void pass5 (size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const cmplx<T0> * restrict wa)
{
constexpr size_t cdim=5;
constexpr T0 tw1r= 0.3090169943749474241,
tw1i= (bwd ? 1.: -1.) * 0.95105651629515357212,
tw2r= -0.8090169943749474241,
tw2i= (bwd ? 1.: -1.) * 0.58778525229247312917;
constexpr T0 tw1r= T0(0.3090169943749474241022934171828191L),
tw1i= (bwd ? 1: -1) * T0(0.9510565162951535721164393333793821L),
tw2r= T0(-0.8090169943749474241022934171828191L),
tw2i= (bwd ? 1: -1) * T0(0.5877852522924731291687059546390728L);
if (ido==1)
for (size_t k=0; k<l1; ++k)
......@@ -618,12 +672,12 @@ template<bool bwd, typename T> void pass7(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const cmplx<T0> * restrict wa)
{
constexpr size_t cdim=7;
constexpr T0 tw1r= 0.623489801858733530525,
tw1i= (bwd ? 1. : -1.) * 0.7818314824680298087084,
tw2r= -0.222520933956314404289,
tw2i= (bwd ? 1. : -1.) * 0.9749279121818236070181,
tw3r= -0.9009688679024191262361,
tw3i= (bwd ? 1. : -1.) * 0.4338837391175581204758;
constexpr T0 tw1r= T0(0.6234898018587335305250048840042398L),
tw1i= (bwd ? 1 : -1) * T0(0.7818314824680298087084445266740578L),
tw2r= T0(-0.2225209339563144042889025644967948L),
tw2i= (bwd ? 1 : -1) * T0(0.9749279121818236070181316829939312L),
tw3r= T0(-0.9009688679024191262361023195074451L),
tw3i= (bwd ? 1 : -1) * T0(0.433883739117558120475768332848359L);
if (ido==1)
for (size_t k=0; k<l1; ++k)
......@@ -688,17 +742,17 @@ template<bool bwd, typename T> void pass7(size_t ido, size_t l1,
template<bool bwd, typename T> void pass11 (size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const cmplx<T0> * restrict wa)
{
const size_t cdim=11;
const T0 tw1r = 0.8412535328311811688618,
tw1i = (bwd ? 1. : -1.) * 0.5406408174555975821076,
tw2r = 0.4154150130018864255293,
tw2i = (bwd ? 1. : -1.) * 0.9096319953545183714117,
tw3r = -0.1423148382732851404438,
tw3i = (bwd ? 1. : -1.) * 0.9898214418809327323761,
tw4r = -0.6548607339452850640569,
tw4i = (bwd ? 1. : -1.) * 0.755749574354258283774,
tw5r = -0.9594929736144973898904,
tw5i = (bwd ? 1. : -1.) * 0.2817325568414296977114;
constexpr size_t cdim=11;
constexpr T0 tw1r= T0(0.8412535328311811688618116489193677L),
tw1i= (bwd ? 1 : -1) * T0(0.5406408174555975821076359543186917L),
tw2r= T0(0.4154150130018864255292741492296232L),
tw2i= (bwd ? 1 : -1) * T0(0.9096319953545183714117153830790285L),
tw3r= T0(-0.1423148382732851404437926686163697L),
tw3i= (bwd ? 1 : -1) * T0(0.9898214418809327323760920377767188L),
tw4r= T0(-0.6548607339452850640569250724662936L),
tw4i= (bwd ? 1 : -1) * T0(0.7557495743542582837740358439723444L),
tw5r= T0(-0.9594929736144973898903680570663277L),
tw5i= (bwd ? 1 : -1) * T0(0.2817325568414296977114179153466169L);
if (ido==1)
for (size_t k=0; k<l1; ++k)
......@@ -1035,7 +1089,7 @@ template<typename T> void radf3(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const T0 * restrict wa)
{
constexpr size_t cdim=3;
constexpr T0 taur=-0.5, taui=0.86602540378443864676;
constexpr T0 taur=-0.5, taui=T0(0.8660254037844386467637231707529362L);
for (size_t k=0; k<l1; k++)
{
......@@ -1069,7 +1123,7 @@ template<typename T> void radf4(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const T0 * restrict wa)
{
constexpr size_t cdim=4;
constexpr T0 hsqt2=0.70710678118654752440;
constexpr T0 hsqt2=T0(0.707106781186547524400844362104849L);
for (size_t k=0; k<l1; k++)
{
......@@ -1110,8 +1164,10 @@ template<typename T> void radf5(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const T0 * restrict wa)
{
constexpr size_t cdim=5;
constexpr T0 tr11= 0.3090169943749474241, ti11=0.95105651629515357212,
tr12=-0.8090169943749474241, ti12=0.58778525229247312917;
constexpr T0 tr11= T0(0.3090169943749474241022934171828191L),
ti11= T0(0.9510565162951535721164393333793821L),
tr12= T0(-0.8090169943749474241022934171828191L),
ti12= T0(0.5877852522924731291687059546390728L);
for (size_t k=0; k<l1; k++)
{
......@@ -1335,7 +1391,7 @@ template<typename T> void radb3(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const T0 * restrict wa)
{
constexpr size_t cdim=3;
constexpr T0 taur=-0.5, taui=0.86602540378443864676;
constexpr T0 taur=-0.5, taui=T0(0.8660254037844386467637231707529362L);
for (size_t k=0; k<l1; k++)
{
......@@ -1370,7 +1426,7 @@ template<typename T> void radb4(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const T0 * restrict wa)
{
constexpr size_t cdim=4;
constexpr T0 sqrt2=1.41421356237309504880;
constexpr T0 sqrt2=T0(1.414213562373095048801688724209698L);
for (size_t k=0; k<l1; k++)
{
......@@ -1416,8 +1472,10 @@ template<typename T> void radb5(size_t ido, size_t l1,
const T * restrict cc, T * restrict ch, const T0 * restrict wa)
{
constexpr size_t cdim=5;
constexpr T0 tr11= 0.3090169943749474241, ti11=0.95105651629515357212,
tr12=-0.8090169943749474241, ti12=0.58778525229247312917;
constexpr T0 tr11= T0(0.3090169943749474241022934171828191L),
ti11= T0(0.9510565162951535721164393333793821L),
tr12= T0(-0.8090169943749474241022934171828191L),
ti12= T0(0.5877852522924731291687059546390728L);
for (size_t k=0; k<l1; k++)
{
......@@ -1825,7 +1883,7 @@ template<typename T0> class fftblue
}
/* initialize the zero-padded, Fourier transformed b_k. Add normalisation. */
T0 xn2 = 1./n2;
T0 xn2 = T0(1)/n2;
bkf[0] = bk[0]*xn2;
for (size_t m=1; m<n; ++m)
bkf[m] = bkf[n2-m] = bk[m]*xn2;
......@@ -1996,10 +2054,9 @@ template<size_t N, typename Ti, typename To> class multi_iter
for (int i=pos.size()-1; i>=0; --i)
{
if (i==int(idim)) continue;
++pos[i];
p_ii += iarr.stride(i);
p_oi += oarr.stride(i);
if (pos[i] < iarr.shape(i))
if (++pos[i] < iarr.shape(i))
return;
pos[i] = 0;
p_ii -= iarr.shape(i)*iarr.stride(i);
......@@ -2039,7 +2096,12 @@ template<size_t N, typename Ti, typename To> class multi_iter
};
#if defined(HAVE_VECSUPPORT)
template<typename T> struct VTYPE{};
template<typename T> struct VTYPE {};
template<> struct VTYPE<long double>
{
using type = long double __attribute__ ((vector_size (sizeof(long double))));
static constexpr int vlen=1;
};
template<> struct VTYPE<double>
{
using type = double __attribute__ ((vector_size (VBYTELEN)));
......@@ -2051,10 +2113,7 @@ template<> struct VTYPE<float>
static constexpr int vlen=VBYTELEN/sizeof(float);
};
#else
template<typename T> struct VTYPE{};
template<> struct VTYPE<double>
{ static constexpr int vlen=1; };
template<> struct VTYPE<float>
template<typename T> struct VTYPE
{ static constexpr int vlen=1; };
#endif
......@@ -2345,52 +2404,99 @@ template<typename T> NOINLINE void general_r(
} // namespace detail
template<typename T> void c2c(const shape_t &shape,
const stride_t &stride_in, const stride_t &stride_out, const shape_t &axes,
bool forward, const void *data_in, void *data_out, T fct)
template<typename T> void c2c(const shape_t &shape, const stride_t &stride_in,
const stride_t &stride_out, const shape_t &axes, bool forward,
const std::complex<T> *data_in, std::complex<T> *data_out, T fct)
{
using namespace detail;
util::sanity_check(shape, stride_in, stride_out, data_in==data_out, axes);
ndarr<cmplx<T>> ain(data_in, shape, stride_in),
aout(data_out, shape, stride_out);
general_c(ain, aout, axes, forward, fct);
}
template<typename T> void r2c(const shape_t &shape,
template<typename T> void r2c(const shape_t &shape_in,
const stride_t &stride_in, const stride_t &stride_out, size_t axis,
const void *data_in, void *data_out, T fct)
const T *data_in, std::complex<T> *data_out, T fct)
{
using namespace detail;
ndarr<T> ain(data_in, shape, stride_in);
ndarr<cmplx<T>> aout(data_out, shape, stride_out);
util::sanity_check(shape_in, stride_in, stride_out, false, axis);
ndarr<T> ain(data_in, shape_in, stride_in);
ndarr<cmplx<T>> aout(data_out, shape_in, stride_out); // FIXME
general_r2c(ain, aout, axis, fct);
}
template<typename T> void c2r(const shape_t &shape, size_t new_size,
template<typename T> void r2c(const shape_t &shape_in,
const stride_t &stride_in, const stride_t &stride_out, const shape_t &axes,
const T *data_in, std::complex<T> *data_out, T fct)
{
using namespace detail;
util::sanity_check(shape_in, stride_in, stride_out, false, axes);
r2c(shape_in, stride_in, stride_out, axes.back(), data_in, data_out, fct);
if (axes.size()==1) return;
shape_t shape_out(shape_in);
shape_out[axes.back()] = shape_in[axes.back()]/2 + 1;
auto newaxes = shape_t{axes.begin(), --axes.end()};
c2c(shape_out, stride_out, stride_out, newaxes, true, data_out, data_out,
T(1));
}
template<typename T> void c2r(const shape_t &shape_out,
const stride_t &stride_in, const stride_t &stride_out, size_t axis,
const void *data_in, void *data_out, T fct)
const std::complex<T> *data_in, T *data_out, T fct)
{
using namespace detail;
shape_t shape_out(shape);
shape_out[axis] = new_size;
ndarr<cmplx<T>> ain(data_in, shape, stride_in);
util::sanity_check(shape_out, stride_in, stride_out, false, axis);
shape_t shape_in(shape_out);
shape_in[axis] = shape_out[axis]/2 + 1;
ndarr<cmplx<T>> ain(data_in, shape_in, stride_in);
ndarr<T> aout(data_out, shape_out, stride_out);
general_c2r(ain, aout, axis, fct);
}
template<typename T> void c2r(const shape_t &shape_out,
const stride_t &stride_in, const stride_t &stride_out, const shape_t &axes,
const std::complex<T> *data_in, T *data_out, T fct)
{
using namespace detail;
if (axes.size()==1)
{
c2r(shape_out, stride_in, stride_out, axes[0], data_in, data_out, fct);
return;
}
util::sanity_check(shape_out, stride_in, stride_out, false, axes);
auto shape_in = shape_out;
shape_in[axes.back()] = shape_out[axes.back()]/2 + 1;
auto nval = util::prod(shape_in);
stride_t stride_inter(shape_in.size());
stride_inter.back() = sizeof(cmplx<T>);
for (int i=shape_in.size()-2; i>=0; --i)
stride_inter[i] = stride_inter[i+1]*shape_in[i+1];
arr<complex<T>> tmp(nval);
auto newaxes = shape_t({axes.begin(), --axes.end()});
c2c(shape_in, stride_in, stride_inter, newaxes, false, data_in, tmp.data(),
T(1));
c2r(shape_out, stride_inter, stride_out, axes.back(), tmp.data(), data_out,
fct);
}
template<typename T> void r2r_fftpack(const shape_t &shape,
const stride_t &stride_in, const stride_t &stride_out, size_t axis,
bool forward, const void *data_in, void *data_out, T fct)
bool forward, const T *data_in, T *data_out, T fct)
{
using namespace detail;
util::sanity_check(shape, stride_in, stride_out, data_in==data_out, axis);
ndarr<T> ain(data_in, shape, stride_in), aout(data_out, shape, stride_out);
general_r(ain, aout, axis, forward, fct);
}
template<typename T> void r2r_hartley(const shape_t &shape,
const stride_t &stride_in, const stride_t &stride_out, const shape_t &axes,
const void *data_in, void *data_out, T fct)
const T *data_in, T *data_out, T fct)
{
using namespace detail;
util::sanity_check(shape, stride_in, stride_out, data_in==data_out, axes);
ndarr<T> ain(data_in, shape, stride_in), aout(data_out, shape, stride_out);
general_hartley(ain, aout, axes, fct);
}
......
pypocketfft.cc
View file @ fcfd81ff
......@@ -26,7 +26,6 @@ namespace {
using namespace std;
using namespace pocketfft;
using namespace pocketfft::detail;
namespace py = pybind11;
......@@ -83,9 +82,9 @@ template<typename T> py::array xfftn_internal(const py::array &in,
{
auto dims(copy_shape(in));
py::array res = inplace ? in : py::array_t<complex<T>>(dims);
ndarr<cmplx<T>> ain(in.data(), dims, copy_strides(in));
ndarr<cmplx<T>> aout(res.mutable_data(), dims, copy_strides(res));
general_c<T>(ain, aout, axes, fwd, fct);
c2c(dims, copy_strides(in), copy_strides(res), axes, fwd,
reinterpret_cast<const complex<T> *>(in.data()),
reinterpret_cast<complex<T> *>(res.mutable_data()), T(fct));
return res;
}
......@@ -108,12 +107,9 @@ template<typename T> py::array rfftn_internal(const py::array &in,
auto dims_in(copy_shape(in)), dims_out(dims_in);
dims_out[axes.back()] = (dims_out[axes.back()]>>1)+1;
py::array res = py::array_t<complex<T>>(dims_out);
ndarr<T> ain(in.data(), dims_in, copy_strides(in));
ndarr<cmplx<T>> aout(res.mutable_data(), dims_out, copy_strides(res));
general_r2c<T>(ain, aout, axes.back(), fct);
if (axes.size()==1) return res;
shape_t axes2(axes.begin(), --axes.end());
general_c<T>(aout, aout, axes2, true, 1.);
r2c(dims_in, copy_strides(in), copy_strides(res), axes,
reinterpret_cast<const T *>(in.data()),
reinterpret_cast<complex<T> *>(res.mutable_data()), T(fct));
return res;
}
py::array rfftn(const py::array &in, py::object axes_, double fct)
......@@ -126,9 +122,9 @@ template<typename T> py::array xrfft_scipy(const py::array &in,
{
auto dims(copy_shape(in));
py::array res = inplace ? in : py::array_t<T>(dims);
ndarr<T> ain(in.data(), dims, copy_strides(in));
ndarr<T> aout(res.mutable_data(), dims, copy_strides(res));
general_r<T>(ain, aout, axis, fwd, fct);
r2r_fftpack(dims, copy_strides(in), copy_strides(res), axis, fwd,
reinterpret_cast<const T *>(in.data()),
reinterpret_cast<T *>(res.mutable_data()), T(fct));
return res;
}
py::array rfft_scipy(const py::array &in, size_t axis, double fct, bool inplace)
......@@ -148,19 +144,16 @@ template<typename T> py::array irfftn_internal(const py::array &in,
py::object axes_, size_t lastsize, T fct)
{
auto axes = makeaxes(in, axes_);
py::array inter = (axes.size()==1) ? in :
xfftn_internal<T>(in, shape_t(axes.begin(), --axes.end()), 1., false, false);
size_t axis = axes.back();
if (lastsize==0) lastsize=2*inter.shape(axis)-1;
if (ptrdiff_t(lastsize/2) + 1 != inter.shape(axis))
shape_t dims_in(copy_shape(in)), dims_out=dims_in;
if (lastsize==0) lastsize=2*dims_in[axis]-1;
if ((lastsize/2) + 1 != dims_in[axis])
throw runtime_error("bad lastsize");
auto dims_out(copy_shape(inter));
dims_out[axis] = lastsize;
py::array res = py::array_t<T>(dims_out);
ndarr<cmplx<T>> ain(inter.data(), copy_shape(inter), copy_strides(inter));
ndarr<T> aout(res.mutable_data(), dims_out, copy_strides(res));
general_c2r<T>(ain, aout, axis, fct);
c2r(dims_in, lastsize, copy_strides(in), copy_strides(res), axes,
reinterpret_cast<const complex<T> *>(in.data()),
reinterpret_cast<T *>(res.mutable_data()), T(fct));
return res;
}
py::array irfftn(const py::array &in, py::object axes_, size_t lastsize,
......@@ -176,9 +169,9 @@ template<typename T> py::array hartley_internal(const py::array &in,
{
auto dims(copy_shape(in));
py::array res = inplace ? in : py::array_t<T>(dims);
ndarr<T> ain(in.data(), copy_shape(in), copy_strides(in));
ndarr<T> aout(res.mutable_data(), copy_shape(res), copy_strides(res));
general_hartley<T>(ain, aout, makeaxes(in, axes_), fct);
r2r_hartley(dims, copy_strides(in), copy_strides(res), makeaxes(in, axes_),
reinterpret_cast<const T *>(in.data()),
reinterpret_cast<T *>(res.mutable_data()), T(fct));
return res;
}
py::array hartley(const py::array &in, py::object axes_, double fct,
......@@ -192,6 +185,7 @@ py::array hartley(const py::array &in, py::object axes_, double fct,
template<typename T>py::array complex2hartley(const py::array &in,
const py::array &tmp, py::object axes_, bool inplace)
{
using namespace pocketfft::detail;
int ndim = in.ndim();
auto dims_out(copy_shape(in));
py::array out = inplace ? in : py::array_t<T>(dims_out);
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment