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Fix buggy text withviewports on monitors with different scales (#3666)

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* Closes https://github.com/emilk/egui/issues/3664

Bonus: optimize color conversions and font atlas upload, especially in
debug builds.
This commit is contained in:
Emil Ernerfeldt
2023-11-30 15:56:05 +01:00
committed by GitHub
parent 61a7b90d5b
commit bd9bc252aa
13 changed files with 284 additions and 61 deletions
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16
crates/epaint/src/texture_atlas.rs
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@@ -97,7 +97,7 @@ impl TextureAtlas {
// for r in [1, 2, 4, 8, 16, 32, 64] {
// let w = 2 * r + 3;
// let hw = w as i32 / 2;
const LARGEST_CIRCLE_RADIUS: f32 = 64.0;
const LARGEST_CIRCLE_RADIUS: f32 = 8.0; // keep small so that the initial texture atlas is small
for i in 0.. {
let r = 2.0_f32.powf(i as f32 / 2.0 - 1.0);
if r > LARGEST_CIRCLE_RADIUS {
@@ -172,9 +172,21 @@ impl TextureAtlas {
}
}
/// The texture options suitable for a font texture
#[inline]
pub fn texture_options() -> crate::textures::TextureOptions {
crate::textures::TextureOptions::LINEAR
}
/// The full font atlas image.
#[inline]
pub fn image(&self) -> &FontImage {
&self.image
}
/// Call to get the change to the image since last call.
pub fn take_delta(&mut self) -> Option<ImageDelta> {
let texture_options = crate::textures::TextureOptions::LINEAR;
let texture_options = Self::texture_options();
let dirty = std::mem::replace(&mut self.dirty, Rectu::NOTHING);
if dirty == Rectu::NOTHING {