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git-svn-id: svn://db.shs.com.ru/pip@342 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

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Бычков Андрей
2017-04-12 16:24:20 +00:00
parent bae9623484
commit 183ab64110
2 changed files with 60 additions and 41 deletions
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16
main.cpp
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@@ -41,19 +41,13 @@ int asize(ssize_t s, size_t pid_rsize) {
return (1 << t);
}
int main(int argc, char *argv[]) {
PIDeque<double> in;
for (int i = 0; i < 5; ++i)
in << i%10;
/*PIFFTWd fft;
fft.preparePlan(50, PIFFTWd::foReal);
PIVector<complexd> out = fft.calcFFT(in);*/
piCout << in.data();
in.align();
piCout << in.data();
in = PIDeque<double>();
PIVector<float> in;
for (int i = 0; i < 50; ++i)
in << i%10;
piCout << in.data();
PIFFTWf fft;
fft.preparePlan(50, PIFFTWf::foReal);
PIVector<complexf> out = fft.calcFFT(in);
piCout << out;
/*for (int i = 0; i < 16; ++i) {
piCout << asize(i, 100);
}

85
src/math/pifft_p.h
View File

@@ -42,6 +42,8 @@ class PIFFTW_Private
public:
explicit PIFFTW_Private() {
plan = 0;
p_in = p_out = 0;
p_inr = 0;
#ifdef PIP_FFTW
// fftwf_m
#else
@@ -49,74 +51,94 @@ public:
#endif
p_makeThreadSafe();
}
~PIFFTW_Private() {p_destroyPlan(plan);}
~PIFFTW_Private() {
p_destroyPlan(plan);
delVec(p_in);
delVec(p_out);
delVec(p_inr);
}
const PIVector<complex<T> > & calcFFT(const PIVector<complex<T> > & in) {
if (prepare != PlanParams(in.size(), fo_complex)) {
p_out.resize(in.size());
newVec(p_in, in.size());
newVec(p_out, in.size());
piCout << "[PIFFTW]" << "creating plan";
p_createPlan_c2c_1d(plan, in.size(), in.data(), p_out.data(), FFTW_FORWARD, FFTW_ESTIMATE | FFTW_UNALIGNED);
p_createPlan_c2c_1d(plan, in.size(), p_in, p_out, FFTW_FORWARD, FFTW_ESTIMATE);
v_out.resize(in.size());
prepare = PlanParams(in.size(), fo_complex);
}
p_executePlan_c2c(plan, in.data(), p_out.data());
return p_out;
memcpy(p_in, in.data(), sizeof(complex<T>) * in.size());
p_executePlan(plan);
memcpy(v_out.data(), p_out, sizeof(complex<T>) * v_out.size());
return v_out;
}
const PIVector<complex<T> > & calcFFT(const PIVector<T> & in) {
if (prepare != PlanParams(in.size(), fo_real)) {
p_out.resize(in.size());
newVec(p_inr, in.size());
newVec(p_out, in.size());
piCout << "[PIFFTW]" << "creating plan";
p_createPlan_r2c_1d(plan, in.size(), in.data(), p_out.data(), FFTW_ESTIMATE | FFTW_UNALIGNED);
p_createPlan_r2c_1d(plan, in.size(), p_inr, p_out, FFTW_ESTIMATE);
v_out.resize(in.size());
prepare = PlanParams(in.size(), fo_real);
}
p_executePlan_r2c(plan, in.data(), p_out.data());
return p_out;
memcpy(p_inr, in.data(), sizeof(T) * in.size());
p_executePlan(plan);
memcpy(v_out.data(), p_out, sizeof(complex<T>) * v_out.size());
return v_out;
}
const PIVector<complex<T> > & calcFFTinverse(const PIVector<complex<T> > & in) {
if (prepare != PlanParams(in.size(), fo_inverse)) {
p_out.resize(in.size());
if (prepare != PlanParams(in.size(), fo_complex)) {
newVec(p_in, in.size());
newVec(p_out, in.size());
piCout << "[PIFFTW]" << "creating plan";
p_createPlan_c2c_1d(plan, in.size(), in.data(), p_out.data(), FFTW_BACKWARD, FFTW_ESTIMATE | FFTW_UNALIGNED);
prepare = PlanParams(in.size(), fo_inverse);
p_createPlan_c2c_1d(plan, in.size(), p_in, p_out, FFTW_BACKWARD, FFTW_ESTIMATE);
v_out.resize(in.size());
prepare = PlanParams(in.size(), fo_complex);
}
p_executePlan_c2c(plan, in.data(), p_out.data());
return p_out;
memcpy(p_in, in.data(), sizeof(complex<T>) * in.size());
p_executePlan(plan);
memcpy(v_out.data(), p_out, sizeof(complex<T>) * v_out.size());
return v_out;
}
enum FFT_Operation {fo_real, fo_complex, fo_inverse};
void preparePlan(int size, int op) {
p_inr.clear();
p_in.clear();
p_out.clear();
switch ((FFT_Operation)op) {
case fo_real:
p_inr.resize(size);
p_out.resize(size);
p_createPlan_r2c_1d(plan, size, p_inr.data(), p_out.data(), FFTW_MEASURE | FFTW_UNALIGNED);
newVec(p_inr, size);
newVec(p_out, size);
p_createPlan_r2c_1d(plan, size, p_inr, p_out, FFTW_MEASURE);
break;
case fo_complex:
p_in.resize(size);
p_out.resize(size);
p_createPlan_c2c_1d(plan, size, p_in.data(), p_out.data(), FFTW_FORWARD, FFTW_MEASURE | FFTW_UNALIGNED);
newVec(p_in, size);
newVec(p_out, size);
p_createPlan_c2c_1d(plan, size, p_in, p_out, FFTW_FORWARD, FFTW_MEASURE);
break;
case fo_inverse:
p_in.resize(size);
p_out.resize(size);
p_createPlan_c2c_1d(plan, size, p_in.data(), p_out.data(), FFTW_BACKWARD, FFTW_MEASURE | FFTW_UNALIGNED);
newVec(p_in, size);
newVec(p_out, size);
p_createPlan_c2c_1d(plan, size, p_in, p_out, FFTW_BACKWARD, FFTW_MEASURE);
break;
default:
size = 0;
break;
}
v_out.resize(size);
prepare = PlanParams(size, (FFT_Operation)op);
}
inline void p_createPlan_c2c_1d(void *& plan, int size, const void * in, void * out, int dir, int flags) {}
inline void p_createPlan_r2c_1d(void *& plan, int size, const void * in, void * out, int flags) {}
inline void p_executePlan(void * plan) {}
inline void p_executePlan_c2c(void * plan, const void * in, void * out) {}
inline void p_executePlan_r2c(void * plan, const void * in, void * out) {}
inline void p_destroyPlan(void *& plan) {}
inline void p_makeThreadSafe() {}
template <typename VT>
inline void newVec(VT *& v, int size) {delVec(v); v = (VT*)amalloc(sizeof(VT) * size);}
template <typename VT>
inline void delVec(VT *& v) {if (v) afree(v); v = 0;}
struct PlanParams {
PlanParams() {size = 0; op = fo_complex;}
@@ -128,9 +150,9 @@ public:
FFT_Operation op;
};
PIVector<complex<T> > p_in;
PIVector<T> p_inr;
PIVector<complex<T> > p_out;
complex<T> * p_in, * p_out;
T * p_inr;
PIVector<complex<T> > v_out;
void * plan;
PlanParams prepare;
};
@@ -141,6 +163,7 @@ template<> inline void PIFFTW_Private<float>::p_createPlan_c2c_1d(void *& plan,
plan = fftwf_plan_dft_1d(size, (fftwf_complex *)in, (fftwf_complex *)out, dir, flags);}
template<> inline void PIFFTW_Private<float>::p_createPlan_r2c_1d(void *& plan, int size, const void * in, void * out, int flags) {
plan = fftwf_plan_dft_r2c_1d(size, (float *)in, (fftwf_complex *)out, flags);}
template<> inline void PIFFTW_Private<float>::p_executePlan(void * plan) {fftwf_execute((fftwf_plan)plan);}
template<> inline void PIFFTW_Private<float>::p_executePlan_c2c(void * plan, const void * in, void * out) {fftwf_execute_dft((fftwf_plan)plan, (fftwf_complex *)in, (fftwf_complex *)out);}
template<> inline void PIFFTW_Private<float>::p_executePlan_r2c(void * plan, const void * in, void * out) {fftwf_execute_dft_r2c((fftwf_plan)plan, (float *)in, (fftwf_complex *)out);}
template<> inline void PIFFTW_Private<float>::p_destroyPlan(void *& plan) {if (plan) fftwf_destroy_plan((fftwf_plan)plan); plan = 0;}
@@ -150,6 +173,7 @@ template<> inline void PIFFTW_Private<double>::p_createPlan_c2c_1d(void *& plan,
plan = fftw_plan_dft_1d(size, (fftw_complex *)in, (fftw_complex *)out, dir, flags);}
template<> inline void PIFFTW_Private<double>::p_createPlan_r2c_1d(void *& plan, int size, const void * in, void * out, int flags) {
plan = fftw_plan_dft_r2c_1d(size, (double *)in, (fftw_complex *)out, flags);}
template<> inline void PIFFTW_Private<double>::p_executePlan(void * plan) {fftw_execute((fftw_plan)plan);}
template<> inline void PIFFTW_Private<double>::p_executePlan_c2c(void * plan, const void * in, void * out) {fftw_execute_dft((fftw_plan)plan, (fftw_complex *)in, (fftw_complex *)out);}
template<> inline void PIFFTW_Private<double>::p_executePlan_r2c(void * plan, const void * in, void * out) {fftw_execute_dft_r2c((fftw_plan)plan, (double *)in, (fftw_complex *)out);}
template<> inline void PIFFTW_Private<double>::p_destroyPlan(void *& plan) {if (plan) fftw_destroy_plan((fftw_plan)plan); plan = 0;}
@@ -160,6 +184,7 @@ template<> inline void PIFFTW_Private<ldouble>::p_createPlan_c2c_1d(void *& plan
plan = fftwl_plan_dft_1d(size, (fftwl_complex *)in, (fftwl_complex *)out, dir, flags);}
template<> inline void PIFFTW_Private<ldouble>::p_createPlan_r2c_1d(void *& plan, int size, const void * in, void * out, int flags) {
plan = fftwl_plan_dft_r2c_1d(size, (ldouble *)in, (fftwl_complex *)out, flags);}
template<> inline void PIFFTW_Private<ldouble>::p_executePlan(void * plan) {fftwl_execute((fftwl_plan)plan);}
template<> inline void PIFFTW_Private<ldouble>::p_executePlan_c2c(void * plan, const void * in, void * out) {fftwl_execute_dft((fftwl_plan)plan, (fftwl_complex *)in, (fftwl_complex *)out);}
template<> inline void PIFFTW_Private<ldouble>::p_executePlan_r2c(void * plan, const void * in, void * out) {fftwl_execute_dft_r2c((fftwl_plan)plan, (ldouble *)in, (fftwl_complex *)out);}
template<> inline void PIFFTW_Private<ldouble>::p_destroyPlan(void *& plan) {if (plan) fftwl_destroy_plan((fftwl_plan)plan); plan = 0;}