git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/modules/juce_dsp/frequency/juce_Windowing.h

@@ -0,0 +1,111 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 6 End-User License
+   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
+
+   End User License Agreement: www.juce.com/juce-6-licence
+   Privacy Policy: www.juce.com/juce-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+namespace dsp
+{
+
+/**
+    A class which provides multiple windowing functions useful for filter design
+    and spectrum analyzers.
+
+    The different functions provided here can be used by creating either a
+    WindowingFunction object, or a static function to fill an array with the
+    windowing method samples.
+
+    @tags{DSP}
+*/
+template <typename FloatType>
+class JUCE_API  WindowingFunction
+{
+public:
+    //==============================================================================
+    /** The windowing methods available. */
+    enum WindowingMethod
+    {
+        rectangular = 0,
+        triangular,
+        hann,
+        hamming,
+        blackman,
+        blackmanHarris,
+        flatTop,
+        kaiser,
+        numWindowingMethods
+    };
+
+    //==============================================================================
+    /** This constructor automatically fills a buffer of the specified size using
+        the fillWindowingTables function and the specified arguments.
+
+        @see fillWindowingTables
+    */
+    WindowingFunction (size_t size, WindowingMethod,
+                       bool normalise = true, FloatType beta = 0);
+
+    //==============================================================================
+    /** Fills the content of the object array with a given windowing method table.
+
+        @param size         the size of the destination buffer allocated in the object
+        @param type         the type of windowing method being used
+        @param normalise    if the result must be normalised, creating a DC amplitude
+                            response of one
+        @param beta         an optional argument useful only for Kaiser's method
+                            which must be positive and sets the properties of the
+                            method (bandwidth and attenuation increases with beta)
+    */
+    void fillWindowingTables (size_t size, WindowingMethod type,
+                              bool normalise = true, FloatType beta = 0) noexcept;
+
+    /** Fills the content of an array with a given windowing method table.
+
+        @param samples      the destination buffer pointer
+        @param size         the size of the destination buffer allocated in the object
+        @param normalise    if the result must be normalised, creating a DC amplitude
+                            response of one
+        @param beta         an optional argument useful only for Kaiser's method,
+                            which must be positive and sets the properties of the
+                            method (bandwidth and attenuation increases with beta)
+    */
+    static void fillWindowingTables (FloatType* samples, size_t size, WindowingMethod,
+                                     bool normalise = true, FloatType beta = 0) noexcept;
+
+    /** Multiplies the content of a buffer with the given window. */
+    void multiplyWithWindowingTable (FloatType* samples, size_t size) noexcept;
+
+    /** Returns the name of a given windowing method. */
+    static const char* getWindowingMethodName (WindowingMethod) noexcept;
+
+
+private:
+    //==============================================================================
+    Array<FloatType> windowTable;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (WindowingFunction)
+};
+
+} // namespace dsp
+} // namespace juce