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https://github.com/Boof2015/prism.git
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Boof2015
96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
#pragma once
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#include <juce_gui_extra/juce_gui_extra.h>
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#include "PluginProcessor.h"
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#include "ScopeEngine.h"
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#include <memory>
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#include <vector>
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/**
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* Hosts the React webview UI and bridges the reused Prism spectrum DSP to it.
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*
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* Drains stereo audio buffered by the processor, feeds the selected scope engine,
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* and emits frame payloads to the webview after the UI reports readiness. macOS
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* uses display vblank; Windows/Linux use steady message-thread timers to avoid
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* fragile host/browser embedding behavior.
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*/
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class PrismSpectrumEditor : public juce::AudioProcessorEditor
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#if JUCE_WINDOWS || JUCE_LINUX
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, private juce::Timer
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#endif
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{
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public:
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explicit PrismSpectrumEditor(PrismSpectrumProcessor&);
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~PrismSpectrumEditor() override;
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void resized() override;
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#if JUCE_WINDOWS || JUCE_LINUX
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void timerCallback() override;
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#endif
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// Called by the webview event listeners (message thread).
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void onPrismConfig(juce::var payload);
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void onPrismReady();
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// Scope-specific native config (e.g. the spectrogram's canvas-derived rowCount).
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void onScopeNativeConfig(juce::var payload);
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// The UI's settings panel opened/closed along the bottom. Grow/shrink the editor
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// height by exactly the panel height so the scope area is unchanged (the window
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// accommodates the panel, like the app). 0 = closed.
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void onSettingsPanel(juce::var payload);
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// Push the processor's saved settings to the UI (used on ready + on host
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// state restore, to cover either ordering).
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void pushRestoreSettings();
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// Read the user's Prism app theme + active profile from disk and send them
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// to the UI as defaults (per-instance overrides still win).
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void sendAppDefaults();
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private:
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void loadUi();
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bool createWebView();
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void loadEmbeddedWebView();
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void showWebViewFallback();
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void startFrameDriver();
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void renderFrame();
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#if JUCE_LINUX
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void loadNativeSmoke();
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void loadWebSmoke();
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void loadFloatingWebView();
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void showLinuxDiagnosticPlaceholder(const juce::String& text);
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#endif
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PrismSpectrumProcessor& processorRef;
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std::unique_ptr<ScopeEngine> engine;
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std::vector<float> drainLeft, drainRight;
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double lastSampleRate = 0.0;
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// Height (px) the editor is currently grown by for the open settings panel.
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int settingsPanelHeight = 0;
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bool webViewReady = false;
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bool frameDriverStarted = false;
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// One-time attempt to lift WKWebView's private 60fps cap (macOS).
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bool frameRateUncapped = false;
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int uncapAttempts = 0;
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std::unique_ptr<juce::WebBrowserComponent> webView;
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#if JUCE_LINUX
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std::unique_ptr<juce::DocumentWindow> floatingWebViewWindow;
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#endif
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juce::Label webViewFallback;
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// Declared last so it is destroyed first; no vblank callback can fire into a
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// partially-destroyed editor. Windows/Linux use juce::Timer instead.
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#if ! JUCE_WINDOWS && ! JUCE_LINUX
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juce::VBlankAttachment vblank;
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#endif
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(PrismSpectrumEditor)
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};
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