WIP: better precision?

src/state/audio.rs

@@ -59,6 +59,7 @@ pub struct AudioConfig {
     pub refresh_rate: RefreshRate,
     pub show_scope: bool,
     pub show_spectrum: bool,
+    pub lookahead_ms: u32,
 }
 
 impl Default for AudioConfig {
@@ -75,6 +76,7 @@ impl Default for AudioConfig {
             refresh_rate: RefreshRate::default(),
             show_scope: true,
             show_spectrum: true,
+            lookahead_ms: 15,
         }
     }
 }
@@ -140,6 +142,7 @@ pub enum SettingKind {
     BufferSize,
     Polyphony,
     Nudge,
+    Lookahead,
 }
 
 impl SettingKind {
@@ -148,16 +151,18 @@ impl SettingKind {
             Self::Channels => Self::BufferSize,
             Self::BufferSize => Self::Polyphony,
             Self::Polyphony => Self::Nudge,
-            Self::Nudge => Self::Channels,
+            Self::Nudge => Self::Lookahead,
+            Self::Lookahead => Self::Channels,
         }
     }
 
     pub fn prev(self) -> Self {
         match self {
-            Self::Channels => Self::Nudge,
+            Self::Channels => Self::Lookahead,
             Self::BufferSize => Self::Channels,
             Self::Polyphony => Self::BufferSize,
             Self::Nudge => Self::Polyphony,
+            Self::Lookahead => Self::Nudge,
         }
     }
 }
@@ -297,6 +302,11 @@ impl AudioSettings {
         self.config.max_voices = new_val;
     }
 
+    pub fn adjust_lookahead(&mut self, delta: i32) {
+        let new_val = (self.config.lookahead_ms as i32 + delta).clamp(0, 50) as u32;
+        self.config.lookahead_ms = new_val;
+    }
+
     pub fn toggle_refresh_rate(&mut self) {
         self.config.refresh_rate = self.config.refresh_rate.toggle();
     }