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NO-OP: whitespace

This commit is contained in:
Robin Gareus 2019-02-28 03:08:21 +01:00
parent 06854e1315
commit 62470f3cb4
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 39 additions and 42 deletions
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31
gtk2_ardour/fft.cc
View File

@ -76,7 +76,7 @@ FFT::analyze(ARDOUR::Sample *input, WindowingType windowing_type)
#define Re (_fftOutput[i])
#define Im (_fftOutput[_window_size-i])
for (uint32_t i=1; i < _data_size - 1; i++) {
for (uint32_t i = 1; i < _data_size - 1; ++i) {
power = (Re * Re) + (Im * Im);
phase = atanf(Im / Re);
@ -95,7 +95,7 @@ FFT::analyze(ARDOUR::Sample *input, WindowingType windowing_type)
}
void
FFT::calculate()
FFT::calculate ()
{
if (_iterations > 1) {
for (uint32_t i=0; i < _data_size - 1; i++) {
@ -106,32 +106,31 @@ FFT::calculate()
}
}
float *
FFT::get_hann_window()
float*
FFT::get_hann_window ()
{
if (_hann_window)
if (_hann_window) {
return _hann_window;
}
_hann_window = (float *) malloc(sizeof(float) * _window_size);
_hann_window = (float*) malloc (sizeof (float) * _window_size);
double sum = 0.0;
for (uint32_t i=0; i < _window_size; i++) {
_hann_window[i]=0.81f * ( 0.5f - (0.5f * (float) cos(2.0f * M_PI * (float)i / (float)(_window_size))));
sum += _hann_window[i];
}
for (uint32_t i = 0; i < _window_size; ++i) {
_hann_window[i] = 0.81f * (0.5f - (0.5f * (float) cos (2.0f * M_PI * (float)i / (float)(_window_size))));
sum += _hann_window[i];
}
double isum = 1.0 / sum;
double isum = 1.0 / sum;
for (uint32_t i=0; i < _window_size; i++) {
_hann_window[i] *= isum;
}
for (uint32_t i = 0; i < _window_size; ++i) {
_hann_window[i] *= isum;
}
return _hann_window;
}
FFT::~FFT()
{
if (_hann_window) {

50
gtk2_ardour/fft.h
View File

@ -36,42 +36,40 @@ namespace GTKArdour {
class FFT
{
public:
FFT(uint32_t);
~FFT();
public:
FFT (uint32_t);
~FFT ();
enum WindowingType {
NONE,
HANN
};
enum WindowingType {
NONE,
HANN
};
void reset();
void analyze(ARDOUR::Sample *, WindowingType w = NONE);
void calculate();
void reset ();
void analyze (ARDOUR::Sample*, WindowingType w = NONE);
void calculate ();
uint32_t bins() const { return _data_size; }
uint32_t bins () const { return _data_size; }
float power_at_bin(uint32_t i) const { return _power_at_bin[i]; }
float phase_at_bin(uint32_t i) const { return _phase_at_bin[i]; }
float power_at_bin (uint32_t i) const { return _power_at_bin[i]; }
float phase_at_bin (uint32_t i) const { return _phase_at_bin[i]; }
private:
float* get_hann_window ();
private:
uint32_t const _window_size;
uint32_t const _data_size;
uint32_t _iterations;
float *get_hann_window();
float* _hann_window;
uint32_t const _window_size;
uint32_t const _data_size;
uint32_t _iterations;
float* _fftInput;
float* _fftOutput;
float *_hann_window;
float* _power_at_bin;
float* _phase_at_bin;
float *_fftInput;
float *_fftOutput;
float *_power_at_bin;
float *_phase_at_bin;
fftwf_plan _plan;
fftwf_plan _plan;
};
}