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Only calculate peak meter while GUI is open

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To show off this feature.
This commit is contained in:
Robbert van der Helm 2022-02-08 20:28:40 +01:00
parent 4260c5441c
commit d9ac60ae85
1 changed files with 14 additions and 10 deletions
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24
plugins/examples/gain-gui/src/lib.rs
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@ -178,17 +178,21 @@ impl Plugin for Gain {
amplitude += *sample; amplitude += *sample;
} }
amplitude = (amplitude / num_samples as f32).abs(); // To save resources, a plugin can (and probably should!) only perform expensive
let current_peak_meter = self.peak_meter.load(std::sync::atomic::Ordering::Relaxed); // calculations that are only displayed on the GUI while the GUI is open
let new_peak_meter = if amplitude > current_peak_meter { if self.editor_state.open() {
amplitude amplitude = (amplitude / num_samples as f32).abs();
} else { let current_peak_meter = self.peak_meter.load(std::sync::atomic::Ordering::Relaxed);
current_peak_meter * self.peak_meter_decay_weight let new_peak_meter = if amplitude > current_peak_meter {
+ amplitude * (1.0 - self.peak_meter_decay_weight) amplitude
}; } else {
current_peak_meter * self.peak_meter_decay_weight
+ amplitude * (1.0 - self.peak_meter_decay_weight)
};
self.peak_meter self.peak_meter
.store(new_peak_meter, std::sync::atomic::Ordering::Relaxed) .store(new_peak_meter, std::sync::atomic::Ordering::Relaxed)
}
} }
ProcessStatus::Normal ProcessStatus::Normal