Struct ScaleScratch 

pub struct ScaleScratch { /* private fields */ }

Reusable scratch for scaling draw commands to physical pixels on the software path. Holds the output buffer plus per-frame caches keyed by the source Arc pointer, so a style shared by many commands (the common case for a UI tree) is scaled and heap-allocated once per frame rather than once per command.

Implementations

impl ScaleScratch

pub fn new() -> Self

pub fn scale_into( &mut self, commands: &[DrawCommand], sf: f32, ) -> &[DrawCommand]

Scales every command in commands by sf into the reusable internal buffer and returns it. The pointer-keyed caches are cleared on entry, so a recycled allocator address can never yield a stale hit (ABA-safe); cache reuse only spans commands within this single call.

Trait Implementations

impl Default for ScaleScratch

fn default() -> ScaleScratch

Returns the “default value” for a type.