adjust font cache size if it gets too big

macos-click-through
Keith Simmons 3 years ago
parent de7696d407
commit 49224f8008

@ -1,8 +1,16 @@
use std::sync::Arc;
use log::trace;
use log::{trace, warn};
use lru::LruCache;
use skia_safe::{TextBlob, TextBlobBuilder};
use skia_safe::{
graphics::{
font_cache_used,
font_cache_limit,
set_font_cache_limit,
},
TextBlob,
TextBlobBuilder,
};
use swash::{
shape::ShapeContext,
text::{
@ -267,6 +275,18 @@ impl CachingShaper {
grouped_results
}
pub fn adjust_font_cache_size(&self) {
let current_font_cache_size = font_cache_limit() as f32;
let percent_font_cache_used = font_cache_used() as f32 / current_font_cache_size;
if percent_font_cache_used > 0.9 {
warn!(
"Font cache is {}% full, increasing cache size",
percent_font_cache_used * 100.0
);
set_font_cache_limit((percent_font_cache_used * 1.5) as usize);
}
}
pub fn shape(&mut self, text: String, bold: bool, italic: bool) -> Vec<TextBlob> {
let current_size = self.current_size();
let (glyph_width, ..) = self.font_base_dimensions();
@ -313,6 +333,8 @@ impl CachingShaper {
resulting_blobs.push(blob.expect("Could not create textblob"));
}
self.adjust_font_cache_size();
resulting_blobs
}

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