Claude
a22c238dc4
A complete audio-reactive visualizer for psytrance music featuring: Audio Analysis (DSPEngine): - FFT spectrum analysis via Accelerate/vDSP - 64-band Mel spectrogram - Sub-bass energy extraction (<100Hz) - Automatic sidechain pump detection - Harmonic-to-Noise ratio (HNR) calculation - Peak/transient detection 8 Visualization Modes (Metal Shaders): 1. FFT Classic - Frequency spectrum bars with glow 2. Mel Spectrogram - Waterfall display 3. Sub-Bass - Pulsating rings 4. Sidechain Pump - Breathing zoom effect 5. Harmonic/Noise - Geometric vs chaotic particles 6. Mandelbrot - Audio-reactive fractal zoom 7. Tunnel Warp - Infinite tunnel with distortion 8. DMT Geometry - Sacred geometry patterns Features: - Selectable audio input device (BlackHole support) - Configurable buffer size (512/1024) - Reactivity slider for visual intensity - Auto-hiding control panel - Fullscreen support with keyboard shortcuts (1-8, F, ESC) - Persistent settings via UserDefaults - Psytrance-inspired neon/UV color palette
123 lines
3.0 KiB
Swift
123 lines
3.0 KiB
Swift
//
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// VisualizerView.swift
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// PsytranceVisualizer
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//
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// MTKView subclass for rendering visualizations
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//
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import MetalKit
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import Combine
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/// MTKView subclass that displays audio-reactive visualizations
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final class VisualizerView: MTKView {
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// MARK: - Properties
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private var renderer: MetalRenderer?
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private var cancellables = Set<AnyCancellable>()
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// MARK: - Initialization
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init() {
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// Get default Metal device
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guard let device = MTLCreateSystemDefaultDevice() else {
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fatalError("Metal is not supported on this device")
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}
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super.init(frame: .zero, device: device)
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configure()
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setupRenderer()
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}
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required init(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// MARK: - Configuration
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private func configure() {
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// Background color
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clearColor = MTLClearColor(red: 0, green: 0, blue: 0, alpha: 1)
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// Color format
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colorPixelFormat = .bgra8Unorm
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// Enable display link for smooth rendering
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isPaused = false
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enableSetNeedsDisplay = false
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// Use display refresh rate
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preferredFramesPerSecond = 120 // Will cap to display refresh
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// Layer configuration
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layer?.isOpaque = true
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// Allow high DPI
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layer?.contentsScale = NSScreen.main?.backingScaleFactor ?? 2.0
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}
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private func setupRenderer() {
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guard let device = device else { return }
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renderer = MetalRenderer(device: device)
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delegate = renderer
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// Initial size update
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if let renderer = renderer {
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let size = drawableSize
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renderer.mtkView(self, drawableSizeWillChange: size)
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}
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}
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// MARK: - Public Methods
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/// Returns the Metal renderer
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func getRenderer() -> MetalRenderer? {
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return renderer
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}
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/// Updates audio data for visualization
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func updateAudioData(_ data: AudioAnalysisData) {
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renderer?.updateAudioData(data)
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}
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/// Sets the visualization mode
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func setVisualizationMode(_ mode: VisualizationMode) {
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renderer?.setVisualizationMode(mode)
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}
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/// Sets reactivity value
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func setReactivity(_ value: Float) {
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renderer?.setReactivity(value)
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}
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/// Gets current visualization mode
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var currentMode: VisualizationMode {
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renderer?.currentMode ?? .fftClassic
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}
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}
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// MARK: - SwiftUI Bridge
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#if canImport(SwiftUI)
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import SwiftUI
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/// SwiftUI wrapper for VisualizerView
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struct VisualizerViewRepresentable: NSViewRepresentable {
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@Binding var audioData: AudioAnalysisData
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@Binding var mode: VisualizationMode
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@Binding var reactivity: Float
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func makeNSView(context: Context) -> VisualizerView {
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let view = VisualizerView()
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return view
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}
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func updateNSView(_ nsView: VisualizerView, context: Context) {
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nsView.updateAudioData(audioData)
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nsView.setVisualizationMode(mode)
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nsView.setReactivity(reactivity)
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}
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}
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#endif
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