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This commit is contained in:
Antonio Scandurra 2023-10-03 16:30:41 +02:00
parent 08464ee26e
commit e49b411205
6 changed files with 148 additions and 127 deletions
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34
crates/gpui3/src/text_system.rs
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@ -11,7 +11,8 @@ use line_wrapper::*;
pub use text_layout_cache::*;
use crate::{
px, Bounds, Hsla, Pixels, PlatformTextSystem, Point, Result, SharedString, Size, UnderlineStyle,
px, Bounds, DevicePixels, Hsla, Pixels, PlatformTextSystem, Point, RasterizationOptions,
Result, SharedString, Size, UnderlineStyle,
};
use collections::HashMap;
use core::fmt;
@ -30,6 +31,8 @@ pub struct FontId(pub usize);
#[derive(Hash, PartialEq, Eq, Clone, Copy, Debug)]
pub struct FontFamilyId(pub usize);
pub const SUBPIXEL_VARIANTS: u8 = 4;
pub struct TextSystem {
text_layout_cache: Arc<TextLayoutCache>,
platform_text_system: Arc<dyn PlatformTextSystem>,
@ -212,6 +215,13 @@ impl TextSystem {
text_system: self.clone(),
})
}
pub fn rasterize_glyph(
&self,
glyph_id: &RasterizedGlyphId,
) -> Result<(Bounds<DevicePixels>, Vec<u8>)> {
self.platform_text_system.rasterize_glyph(glyph_id)
}
}
#[derive(Hash, Eq, PartialEq)]
@ -370,11 +380,25 @@ pub struct ShapedGlyph {
pub is_emoji: bool,
}
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
#[derive(Clone, Debug, PartialEq)]
pub struct RasterizedGlyphId {
font_id: FontId,
glyph_id: GlyphId,
font_size: Pixels,
pub(crate) font_id: FontId,
pub(crate) glyph_id: GlyphId,
pub(crate) font_size: Pixels,
pub(crate) subpixel_variant: Point<u8>,
pub(crate) scale_factor: f32,
}
impl Eq for RasterizedGlyphId {}
impl Hash for RasterizedGlyphId {
fn hash<H: Hasher>(&self, state: &mut H) {
self.font_id.0.hash(state);
self.glyph_id.0.hash(state);
self.font_size.0.to_bits().hash(state);
self.subpixel_variant.hash(state);
self.scale_factor.to_bits().hash(state);
}
}
#[derive(Clone, Debug, Eq, PartialEq, Hash)]