beamer-vst3

VST3 implementation layer for the Beamer framework.

This crate provides the VST3 interface implementations that wrap beamer-core traits into VST3 COM interfaces. It handles all the VST3-specific details like:

• Plugin factory (IPluginFactory, IPluginFactory2, IPluginFactory3)
• Generic processor wrapper ([Vst3Processor])
• Platform entry points

Architecture

Uses the combined component pattern where processor and controller are implemented by the same object. This is the modern, recommended approach used by most audio plugin frameworks.

User Plugin (implements beamer_core::Plugin)
       ↓
Vst3Processor<P> (generic VST3 wrapper)
       ↓
VST3 COM interfaces (IComponent, IAudioProcessor, IEditController)

Usage

1. Implement beamer_core::Plugin for your plugin type
2. Use export_vst3! macro to generate entry points

use beamer_core::{Plugin, AudioProcessor, AudioBuffer, Parameters, ParamInfo};
use beamer_vst3::{export_vst3, Vst3Processor, PluginConfig, vst3};

// Define your plugin
struct MyGain { params: MyParams }

impl AudioProcessor for MyGain {
    fn setup(&mut self, _: f64, _: usize) {}
    fn process(&mut self, buffer: &mut AudioBuffer) { /* DSP here */ }
}

impl Plugin for MyGain {
    type Params = MyParams;
    fn params(&self) -> &Self::Params { &self.params }
    fn create() -> Self { Self { params: MyParams::new() } }
}

// Configure and export
static CONFIG: PluginConfig = PluginConfig::new(
    "My Plugin",
    vst3::uid(0x12345678, 0x9ABCDEF0, 0xABCDEF12, 0x34567890),
)
.with_vendor("My Company");

export_vst3!(CONFIG, Vst3Processor<MyGain>);