gearmulator

commit a2752adbb6351bd1a75d7c014e1e654922b5a848
parent 2014c5eb6f3c69372eddaf0962aad1fc66b70581
Author: dsp56300 <dsp56300@users.noreply.github.com>
Date:   Sat, 22 Jun 2024 19:58:04 +0200

update time domain graph from frequency/phase modifications

Diffstat:
M
source/xtJucePlugin/weGraphData.cpp
 | 
29
+++++++++++++++++++++++++++++
M
source/xtJucePlugin/weGraphData.h
 | 
1
+

2 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/source/xtJucePlugin/weGraphData.cpp b/source/xtJucePlugin/weGraphData.cpp
@@ -48,6 +48,7 @@ namespace xtJucePlugin
 		if(m_frequencies[_index] == _value)
 			return;
 		m_frequencies[_index] = _value;
+		updateDataFromFrequenciesAndPhases();
 		onSourceChanged(m_source);
 	}
 
@@ -56,6 +57,7 @@ namespace xtJucePlugin
 		if(m_phases[_index] == _value)
 			return;
 		m_phases[_index] = _value;
+		updateDataFromFrequenciesAndPhases();
 		onSourceChanged(m_source);
 	}
 
@@ -84,4 +86,31 @@ namespace xtJucePlugin
 //				m_phases[i] = 0;
 		}
 	}
+
+	void GraphData::updateDataFromFrequenciesAndPhases()
+	{
+		const auto scale = static_cast<float>(m_fft.getSize()>>1);
+
+		for(uint32_t i=0; i<m_frequencies.size(); ++i)
+		{
+			const auto re = cos(m_phases[i] * g_pi) * scale * m_frequencies[i];
+			const auto im = sin(m_phases[i] * g_pi) * scale * m_frequencies[i];
+
+			m_fftInData[i].real(re);
+			m_fftInData[i].imag(im);
+
+			if(!i)
+				continue;
+
+			m_fftInData[128-i].real(re);
+			m_fftInData[128-i].imag(-im);
+		}
+
+		m_fft.perform(m_fftInData.data(), m_fftOutData.data(), true);
+
+		for(uint32_t i=0; i<m_data.size(); ++i)
+		{
+			m_data[i] = m_fftOutData[i].real();
+		}
+	}
 }
diff --git a/source/xtJucePlugin/weGraphData.h b/source/xtJucePlugin/weGraphData.h
@@ -28,6 +28,7 @@ namespace xtJucePlugin
 
 	private:
 		void updateFrequenciesAndPhases();
+		void updateDataFromFrequenciesAndPhases();
 
 		WaveData m_source;