Struct CachedBusConfig 

pub struct CachedBusConfig {
    pub input_bus_count: usize,
    pub output_bus_count: usize,
    pub input_buses: Vec<CachedBusInfo>,
    pub output_buses: Vec<CachedBusInfo>,
}

Cached bus configuration from plugin or host.

Stores bus and channel information for fast access during audio processing. This provides a common representation used by both VST3 and AU wrappers.

Fields

input_bus_count: usize

Number of input buses.

output_bus_count: usize

Number of output buses.

input_buses: Vec<CachedBusInfo>

Input bus information.

output_buses: Vec<CachedBusInfo>

Output bus information.

Implementations

impl CachedBusConfig

pub fn new( input_buses: Vec<CachedBusInfo>, output_buses: Vec<CachedBusInfo>, ) -> Self

Create a new cached bus configuration.

Panics

Panics if bus counts exceed MAX_BUSES.

pub fn from_plugin<P: Descriptor>(plugin: &P) -> Self

Create from a plugin’s bus configuration.

pub fn input_bus_info(&self, bus: usize) -> Option<&CachedBusInfo>

Get information about an input bus.

Returns None if the bus index is out of bounds.

pub fn output_bus_info(&self, bus: usize) -> Option<&CachedBusInfo>

Get information about an output bus.

Returns None if the bus index is out of bounds.

pub fn total_input_channels(&self) -> usize

Get the total number of input channels across all buses.

pub fn total_output_channels(&self) -> usize

Get the total number of output channels across all buses.

pub fn to_bus_layout(&self) -> BusLayout

Convert to a BusLayout for plugin preparation.

This enables passing the cached bus configuration to the plugin’s prepare() method via FullAudioSetup.

pub fn validate(&self) -> Result<(), String>

Validate that this configuration doesn’t exceed system limits.

Checks that:

• Bus counts are within MAX_BUSES
• Channel counts per bus are within MAX_CHANNELS

Returns Ok(()) if valid, or Err with a descriptive message.

Trait Implementations

impl Clone for CachedBusConfig

fn clone(&self) -> CachedBusConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CachedBusConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CachedBusConfig

fn default() -> Self

Create a default stereo configuration (2in/2out, main bus only).