diff options
| author | Robin Gareus <robin@gareus.org> | 2019-02-28 03:08:21 +0100 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2019-02-28 03:08:21 +0100 |
| commit | 62470f3cb431e8378af303ad53f92b4948c459ad (patch) | |
| tree | 6738d4f371ecdbfd92307b98a43b66fdf2f8189e /gtk2_ardour/fft.cc | |
| parent | 06854e131520077b41e4da2bb6dc0f7141609be5 (diff) | |
NO-OP: whitespace
Diffstat (limited to 'gtk2_ardour/fft.cc')
| -rw-r--r-- | gtk2_ardour/fft.cc | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/gtk2_ardour/fft.cc b/gtk2_ardour/fft.cc index ec9af2fd3e..b9a23f3571 100644 --- a/gtk2_ardour/fft.cc +++ b/gtk2_ardour/fft.cc @@ -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) { |