Raxol.Terminal.Renderer.CachedStyleRenderer (Raxol v2.0.1)

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High-performance terminal renderer with style string caching.

Phase 2 optimization targeting the critical bottleneck:

  • Style string building: 44.9% of render time
  • Target: Reduce from 1461μs to <500μs (65% improvement)

Key optimizations:

  1. LRU cache for compiled CSS style strings
  2. Pre-compiled templates for common styles
  3. Batch processing for consecutive identical styles
  4. Memory-efficient string building

Summary

Types

t()

Functions

get_cache_stats()

Get cache performance statistics.

new(screen_buffer, theme \\ %{}, font_settings \\ %{})

Creates a new cached style renderer.

render(renderer)

Renders the terminal content with cached style optimization.

render_with_state(renderer)

Renders the terminal content and returns both content and updated renderer with cache. Use this for stateful rendering where you want to preserve cache between renders.

reset_cache_stats()

Reset cache statistics.

Types

t()

@type t() :: %Raxol.Terminal.Renderer.CachedStyleRenderer{
  cache_hits: non_neg_integer(),
  cache_misses: non_neg_integer(),
  cursor: {non_neg_integer(), non_neg_integer()} | nil,
  font_settings: map(),
  screen_buffer: Raxol.Terminal.ScreenBuffer.t(),
  style_cache: map(),
  theme: map()
}

Functions

get_cache_stats()

Get cache performance statistics.

new(screen_buffer, theme \\ %{}, font_settings \\ %{})

Creates a new cached style renderer.

render(renderer)

Renders the terminal content with cached style optimization.

render_with_state(renderer)

Renders the terminal content and returns both content and updated renderer with cache. Use this for stateful rendering where you want to preserve cache between renders.

reset_cache_stats()

Reset cache statistics.