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fonts: pre-size some vecs

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micro optimization really
This commit is contained in:
Wez Furlong 2021-04-27 22:39:32 -07:00
parent a2b068d59f
commit 8953bff276
2 changed files with 2 additions and 2 deletions
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2
wezterm-gui/src/shapecache.rs
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@ -50,7 +50,7 @@ where
infos: &[GlyphInfo], infos: &[GlyphInfo],
glyphs: &[Rc<CachedGlyph<T>>], glyphs: &[Rc<CachedGlyph<T>>],
) -> Vec<ShapedInfo<T>> { ) -> Vec<ShapedInfo<T>> {
let mut pos: Vec<Option<ShapedInfo<T>>> = vec![]; let mut pos: Vec<Option<ShapedInfo<T>>> = Vec::with_capacity(infos.len());
let mut x = 0.; let mut x = 0.;
let mut prior_info: Option<&GlyphInfo> = None; let mut prior_info: Option<&GlyphInfo> = None;

2
wezterm-gui/src/termwindow/render.rs
View File

@ -1275,7 +1275,7 @@ impl super::TermWindow {
glyph_cache: &mut GlyphCache<SrgbTexture2d>, glyph_cache: &mut GlyphCache<SrgbTexture2d>,
infos: &[GlyphInfo], infos: &[GlyphInfo],
) -> anyhow::Result<Vec<Rc<CachedGlyph<SrgbTexture2d>>>> { ) -> anyhow::Result<Vec<Rc<CachedGlyph<SrgbTexture2d>>>> {
let mut glyphs = vec![]; let mut glyphs = Vec::with_capacity(infos.len());
for info in infos { for info in infos {
let cell_idx = cluster.byte_to_cell_idx[info.cluster as usize]; let cell_idx = cluster.byte_to_cell_idx[info.cluster as usize];
let followed_by_space = match line.cells().get(cell_idx + 1) { let followed_by_space = match line.cells().get(cell_idx + 1) {