Struct RendererConfig 

pub struct RendererConfig {
    pub text_cache_capacity: NonZeroUsize,
    pub svg_cache_capacity: NonZeroUsize,
    pub svg_trees_capacity: NonZeroUsize,
    pub shared_elements_capacity: NonZeroUsize,
    pub image_uv_capacity: NonZeroUsize,
    pub texture_registry_capacity: NonZeroUsize,
    pub mega_heim_width: u32,
    pub mega_heim_height: u32,
}

Configurable parameters for the GpuRenderer.

The 5220-line GpuRenderer monolith hardcoded six LRU cache sizes plus the Mega-Heim atlas dimensions. This struct extracts those tunables so they can be adjusted at runtime via GpuRenderer::set_config() (e.g., to use a low_vram preset after detecting a device with limited VRAM).

Fields

text_cache_capacity: NonZeroUsize

Capacity of the text glyph cache (keyed by glyph hash).

svg_cache_capacity: NonZeroUsize

Capacity of the SVG tessellated model cache.

svg_trees_capacity: NonZeroUsize

Capacity of the parsed usvg::Tree cache.

shared_elements_capacity: NonZeroUsize

Capacity of the shared element (Lottie) cache.

image_uv_capacity: NonZeroUsize

Capacity of the image UV registry.

texture_registry_capacity: NonZeroUsize

Capacity of the texture name -> handle registry.

mega_heim_width: u32

Width of the Mega-Heim shared texture atlas.

mega_heim_height: u32

Height of the Mega-Heim shared texture atlas.

Implementations

impl RendererConfig

pub fn low_vram() -> Self

Low-VRAM preset: smaller caches and atlas for mobile GPUs.

pub fn high_end() -> Self

High-end preset: larger caches and atlas for desktop GPUs.

pub fn mega_heim_vram_bytes(&self) -> u64

Total VRAM cost of the Mega-Heim texture in bytes (RGBA8 = 4 bytes/pixel).

Trait Implementations

impl Clone for RendererConfig

fn clone(&self) -> RendererConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RendererConfig

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

Formats the value using the given formatter.

impl Default for RendererConfig

fn default() -> Self

Returns the “default value” for a type.