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Source/Components/Displays/ReverbResponse.h

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+/*
+  ==============================================================================
+
+    ReverbResponse.h
+    Created: 17 Jan 2024 11:16:38pm
+    Author:  binya
+
+  ==============================================================================
+*/
+
+#pragma once
+#include <JuceHeader.h>
+
+#include <readerwriterqueue.h>
+#include "../../Utilities/ComponentUtils.h"
+#include "../../Sampler/Effects/Reverb.h"
+
+class ReverbResponseThread final : public juce::Thread
+{
+public:
+    explicit ReverbResponseThread(const APVTS& apvts, int sampleRate);
+    ~ReverbResponseThread() override;
+
+    void run() override;
+
+    moodycamel::ReaderWriterQueue<juce::AudioBuffer<float>, 16384>& getResponseChangeQueue() { return responseChangeQueue; }
+
+    //==============================================================================
+    static constexpr int DISPLAY_TIME{ 10 };
+    static constexpr float SAMPLE_RATE_RATIO{ 10.f };
+
+private:
+    static constexpr float IMPULSE_TIME{ 0.05f };
+    static constexpr float CHIRP_START{ 50.f };
+    static constexpr float CHIRP_END{ 18000.f };
+
+    void initializeImpulse();
+
+    //==============================================================================
+    int sampleRate;
+
+    Reverb reverb;
+    std::atomic<float> size{ 0.f }, damping{ 0.f }, delay{ 0.f }, mix{ 0.f };
+    std::atomic<bool> reverbChanged{ false };
+    juce::ParameterAttachment sizeAttachment, dampingAttachment, delayAttachment, mixAttachment;
+
+    juce::AudioBuffer<float> impulse;
+
+    #pragma warning(disable: 4324)	// structure was padded due to __declspec(align())
+    moodycamel::ReaderWriterQueue<juce::AudioBuffer<float>, 16384> responseChangeQueue;
+};
+
+class ReverbResponse final : public CustomComponent, public juce::Timer
+{
+public:
+    ReverbResponse(APVTS& apvts);
+
+    void paint (juce::Graphics&) override;
+    void enablementChanged() override;
+
+    void timerCallback() override;
+
+private:
+    APVTS& apvts;
+    constexpr static int sampleRate = 48000;
+
+    float lows{ 0.f }, highs{ 0.f }, mix{ 0.f };
+    juce::ParameterAttachment lowsAttachment, highsAttachment, mixAttachment;
+
+    ReverbResponseThread responseThread;
+    juce::AudioBuffer<float> response;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ReverbResponse)
+};