X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Ffft.cc;h=a4e34bf2aafedbb56116c372772ef017c2320506;hb=549de1f298ad777febe201c6c50e2303a6ca0c4d;hp=f78a1e94ad2f1935313765c16e1e67f8bb452388;hpb=a75868c767dc5a74f4b7361a6255972bad7f7c61;p=ardour.git

diff --git a/gtk2_ardour/fft.cc b/gtk2_ardour/fft.cc
index f78a1e94ad..a4e34bf2aa 100644
--- a/gtk2_ardour/fft.cc
+++ b/gtk2_ardour/fft.cc
@@ -23,6 +23,8 @@
 #include <string.h>
 #include <math.h>
 
+using namespace GTKArdour;
+
 FFT::FFT(uint32_t windowSize)
 	: _window_size(windowSize),
 	  _data_size(_window_size/2),
@@ -46,7 +48,7 @@ FFT::reset()
 {
 	memset(_power_at_bin, 0, sizeof(float) * _data_size);
 	memset(_phase_at_bin, 0, sizeof(float) * _data_size);
-	
+
 	_iterations = 0;
 }
 
@@ -74,11 +76,11 @@ 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);
-	
+
 		if (Re < 0.0 && Im > 0.0) {
 			phase += M_PI;
 		} else if (Re < 0.0 && Im < 0.0) {
@@ -96,7 +98,7 @@ void
 FFT::calculate()
 {
 	if (_iterations > 1) {
-	       	for (uint32_t i=0; i < _data_size - 1; i++) { 
+	       	for (uint32_t i=0; i < _data_size - 1; i++) {
 			_power_at_bin[i] /= (float)_iterations;
 			_phase_at_bin[i] /= (float)_iterations;
 		}
@@ -114,14 +116,14 @@ FFT::get_hann_window()
         _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];
         }
 
         double isum = 1.0 / sum;
-        
+
         for (uint32_t i=0; i < _window_size; i++) {
                 _hann_window[i] *= isum;
         }