Feat: UI/UX and ducking compressor

src/views/main_view.rs

@@ -482,6 +482,15 @@ fn render_tile(
     }
 }
 
+fn viz_gain(data: &[f32], config: &crate::state::audio::AudioConfig) -> f32 {
+    if config.normalize_viz {
+        let peak = data.iter().fold(0.0_f32, |m, s| m.max(s.abs()));
+        if peak > 0.0001 { 1.0 / peak } else { 1.0 }
+    } else {
+        config.gain_boost
+    }
+}
+
 fn render_scope(frame: &mut Frame, app: &App, area: Rect, orientation: Orientation) {
     let theme = theme::get();
     let block = Block::default()
@@ -490,9 +499,11 @@ fn render_scope(frame: &mut Frame, app: &App, area: Rect, orientation: Orientati
     let inner = block.inner(area);
     frame.render_widget(block, area);
 
+    let gain = viz_gain(&app.metrics.scope, &app.audio.config);
     let scope = Scope::new(&app.metrics.scope)
         .orientation(orientation)
-        .color(theme.meter.low);
+        .color(theme.meter.low)
+        .gain(gain);
     frame.render_widget(scope, inner);
 }
 
@@ -504,7 +515,13 @@ fn render_spectrum(frame: &mut Frame, app: &App, area: Rect) {
     let inner = block.inner(area);
     frame.render_widget(block, area);
 
-    let spectrum = Spectrum::new(&app.metrics.spectrum);
+    let gain = if app.audio.config.normalize_viz {
+        viz_gain(&app.metrics.spectrum, &app.audio.config)
+    } else {
+        1.0
+    };
+    let spectrum = Spectrum::new(&app.metrics.spectrum)
+        .gain(gain);
     frame.render_widget(spectrum, inner);
 }
 
@@ -516,8 +533,16 @@ fn render_lissajous(frame: &mut Frame, app: &App, area: Rect) {
     let inner = block.inner(area);
     frame.render_widget(block, area);
 
+    let peak = app.metrics.scope.iter().chain(app.metrics.scope_right.iter())
+        .fold(0.0_f32, |m, s| m.max(s.abs()));
+    let gain = if app.audio.config.normalize_viz {
+        if peak > 0.0001 { 1.0 / peak } else { 1.0 }
+    } else {
+        app.audio.config.gain_boost
+    };
     let lissajous = Lissajous::new(&app.metrics.scope, &app.metrics.scope_right)
-        .color(theme.meter.low);
+        .color(theme.meter.low)
+        .gain(gain);
     frame.render_widget(lissajous, inner);
 }