Crate truce_rack_vst3 

VST3 host implementation for the truce-rack framework.

Built on the community vst3 Rust bindings — no Steinberg SDK submodule, no cmake. A fresh checkout builds in seconds.

Lifecycle

Each .vst3 bundle exports GetPluginFactory (and on macOS bundleEntry / bundleExit). Loading walks:

1. dlopen the binary inside the bundle.
2. bundleEntry() on macOS (no-op elsewhere).
3. GetPluginFactory() → IPluginFactory.
4. createInstance(cid, IComponent::IID) → IComponent.
5. IPluginBase::initialize(host_context) on the component.
6. Cast to IAudioProcessor.
7. IComponent::getControllerClassId(&mut cid2) — if separate, factory.createInstance(cid2, IEditController::IID) and initialize it. Otherwise cast the component itself.
8. Connect the component and controller IConnectionPoints (separate-controller case only).

Activate calls setBusArrangements, setupProcessing, setActive(true), setProcessing(true). Deactivate reverses.

Structs

Vst3Plugin

One loaded VST3 plugin instance.

Vst3Scanner

VST3 scanner.

Constants

FORMAT

Format identifier used on returned PluginInfo.

VST3_EXTENSION

Bundle directory suffix every VST3 plugin uses.

Functions

default_vst3_paths

Standard VST3 install locations for the current OS.