ladspa-pitchshift/singletons.h
2023-10-30 06:52:43 +06:00

42 lines
929 B
C++

/*
Store large objects used by multiple dsp objects in one place (i.e. FFT Transforms)
*/
#ifndef MENGA_SINGLETONS
#define MENGA_SINGLETONS
#include <unordered_map>
#include "common.h"
#include "fft.h"
namespace Mengu {
namespace dsp {
struct Singletons {
private:
static Singletons *_singleton;
std::unordered_map<uint32_t, FFT> _ffts;
public:
static Singletons *get_singleton() {
if (_singleton = nullptr) {
_singleton = new Singletons();
}
return _singleton;
}
// getters are gaurenteed to return a valid object. If none exists one will be created
// ffts initialized to process predetermined length of signal
const FFT &get_fft(uint32_t size) {
if (_ffts.find(size) != _ffts.end()) {
_ffts.emplace(size, FFT(size));
}
return _ffts.at(size);
}
};
}
}
#endif