From e8c11c3085db4589dacce099987eef2e8df4d03f Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Tue, 1 Oct 2019 00:21:02 +0200
Subject: [PATCH] FFT Window: in place apply methods

---
 sdrbase/dsp/fftwindow.cpp | 24 +++++++++++++++++++++---
 sdrbase/dsp/fftwindow.h   |  2 ++
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/sdrbase/dsp/fftwindow.cpp b/sdrbase/dsp/fftwindow.cpp
index d49c5734b..bcde02ea9 100644
--- a/sdrbase/dsp/fftwindow.cpp
+++ b/sdrbase/dsp/fftwindow.cpp
@@ -57,18 +57,36 @@ void FFTWindow::create(Function function, int n)
 
 void FFTWindow::apply(const std::vector<Real>& in, std::vector<Real>* out)
 {
-	for(size_t i = 0; i < m_window.size(); i++)
+	for(size_t i = 0; i < m_window.size(); i++) {
 		(*out)[i] = in[i] * m_window[i];
+    }
 }
 
 void FFTWindow::apply(const std::vector<Complex>& in, std::vector<Complex>* out)
 {
-	for(size_t i = 0; i < m_window.size(); i++)
+	for(size_t i = 0; i < m_window.size(); i++) {
 		(*out)[i] = in[i] * m_window[i];
+    }
+}
+
+void FFTWindow::apply(std::vector<Complex>& in)
+{
+	for(size_t i = 0; i < m_window.size(); i++) {
+		in[i] *= m_window[i];
+    }
 }
 
 void FFTWindow::apply(const Complex* in, Complex* out)
 {
-	for(size_t i = 0; i < m_window.size(); i++)
+	for(size_t i = 0; i < m_window.size(); i++) {
 		out[i] = in[i] * m_window[i];
+    }
 }
+
+void FFTWindow::apply(Complex* in)
+{
+	for(size_t i = 0; i < m_window.size(); i++) {
+		in[i] *= m_window[i];
+    }
+}
+
diff --git a/sdrbase/dsp/fftwindow.h b/sdrbase/dsp/fftwindow.h
index d1e1d95ae..0b6674dde 100644
--- a/sdrbase/dsp/fftwindow.h
+++ b/sdrbase/dsp/fftwindow.h
@@ -42,7 +42,9 @@ public:
 	void create(Function function, int n);
 	void apply(const std::vector<Real>& in, std::vector<Real>* out);
 	void apply(const std::vector<Complex>& in, std::vector<Complex>* out);
+    void apply(std::vector<Complex>& in);
 	void apply(const Complex* in, Complex* out);
+    void apply(Complex* in);
 
 private:
 	std::vector<float> m_window;