Struct wr_glyph_rasterizer::rasterizer::GlyphRasterizer

pub struct GlyphRasterizer {

    workers: Arc<ThreadPool>,
    font_contexts: Arc<FontContexts>,
    dedicated_thread: Option<GlyphRasterThread>,
    fonts: FastHashSet<FontKey>,
    pending_glyph_count: usize,
    pending_glyph_jobs: usize,
    glyph_request_count: usize,
    pending_glyph_requests: FastHashMap<FontInstance, SmallVec<[GlyphKey; 16]>>,
    glyph_rx: Receiver<GlyphRasterJob>,
    glyph_tx: Sender<GlyphRasterJob>,
    fonts_to_remove: Vec<FontKey>,
    font_instances_to_remove: Vec<FontInstance>,
    enable_multithreading: bool,
    can_use_r8_format: bool,
}

Fields

workers: Arc<ThreadPool>

font_contexts: Arc<FontContexts>

dedicated_thread: Option<GlyphRasterThread>

fonts: FastHashSet<FontKey>

The current set of loaded fonts.

pending_glyph_count: usize

The current number of individual glyphs waiting in pending batches.

pending_glyph_jobs: usize

The current number of glyph request jobs that have been kicked to worker threads.

glyph_request_count: usize

The number of glyphs requested this frame.

pending_glyph_requests: FastHashMap<FontInstance, SmallVec<[GlyphKey; 16]>>

A map of current glyph request batches.

glyph_rx: Receiver<GlyphRasterJob>

glyph_tx: Sender<GlyphRasterJob>

fonts_to_remove: Vec<FontKey>

font_instances_to_remove: Vec<FontInstance>

enable_multithreading: bool

can_use_r8_format: bool

Implementations

impl GlyphRasterizer

pub fn request_glyphs<F>( &mut self, font: FontInstance, glyph_keys: &[GlyphKey], handle: F, )

where F: FnMut(&GlyphKey) -> bool,

pub fn enable_multithreading(&mut self, enable: bool)

fn flush_glyph_requests( &mut self, font: FontInstance, glyphs: SmallVec<[GlyphKey; 16]>, use_workers: bool, )

Internal method to flush a list of glyph requests to a set of worker threads, or process on this thread if there isn’t much work to do (in which case the overhead of processing these on a thread is unlikely to be a performance win).

pub fn resolve_glyphs<F, G>(&mut self, handle: F, profile: &mut G)

where F: FnMut(GlyphRasterJob, bool), G: GlyphRasterizeProfiler,

impl GlyphRasterizer

pub fn new( workers: Arc<ThreadPool>, dedicated_thread: Option<GlyphRasterThread>, can_use_r8_format: bool, ) -> Self

pub fn add_font(&mut self, font_key: FontKey, template: FontTemplate)

pub fn delete_font(&mut self, font_key: FontKey)

pub fn delete_fonts(&mut self, font_keys: &[FontKey])

pub fn delete_font_instance(&mut self, instance: &FontInstance)

pub fn prepare_font(&self, font: &mut FontInstance)

pub fn has_font(&self, font_key: FontKey) -> bool

pub fn get_glyph_dimensions( &mut self, font: &FontInstance, glyph_index: GlyphIndex, ) -> Option<GlyphDimensions>

pub fn get_glyph_index(&mut self, font_key: FontKey, ch: char) -> Option<u32>

fn remove_dead_fonts(&mut self)