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improve box drawing rendering at smaller font sizes

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This commit is contained in:
Wez Furlong 2021-06-26 08:46:01 -07:00
parent 4c0d789ac3
commit 843dd88bb5
1 changed files with 8 additions and 4 deletions
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12
wezterm-gui/src/glyphcache.rs
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@ -206,14 +206,16 @@ pub enum BlockCoord {
}
impl BlockCoord {
/// Compute the actual pixel value given the max dimension
/// Compute the actual pixel value given the max dimension.
/// For interior points, add 0.5 so that we get the middle of the row;
/// in AA modes with 1px wide strokes this gives better results.
pub fn to_pixel(self, max: usize, underline_height: f32) -> f32 {
match self {
Self::Zero => 0.,
Self::One => max as f32,
Self::Frac(num, den) => max as f32 * num as f32 / den as f32,
Self::Frac(num, den) => (max as f32 * num as f32 / den as f32) + 0.5,
Self::FracWithOffset(num, den, under) => {
(max as f32 * num as f32 / den as f32) + (underline_height / under as f32)
((max as f32 * num as f32 / den as f32) + (underline_height / under as f32)) + 0.5
}
}
}
@ -2633,6 +2635,7 @@ impl<T: Texture2d> GlyphCache<T> {
let mut paint = Paint::default();
paint.set_color(tiny_skia::Color::WHITE);
paint.force_hq_pipeline = true;
pixmap.fill_path(
&path,
@ -2745,7 +2748,8 @@ impl<T: Texture2d> GlyphCache<T> {
let intensity = (intensity.to_scale() * 255.) as u8;
let mut paint = Paint::default();
paint.set_color_rgba8(intensity, intensity, intensity, intensity);
paint.anti_alias = false; // explicitly do not want AA for small sizes
paint.anti_alias = true;
paint.force_hq_pipeline = true;
let mut pb = PathBuilder::new();
for item in path.iter() {
item.to_skia(width, height, self.metrics.underline_height as f32, &mut pb);