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Speed up per-frame layout, hit testing, and stacking paths

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Split ScrollingLayout validation so the per-frame geometry solve only
checks scalars and keeps the full tree validation behind debug_assert,
removing a HashSet build from every frame. Replace the per-region Vec
in decode_regions with a stack array via as_chunks, and skip the window
hit test in PointerMotion when Overview is not presenting, where
visual_scale_for_window returns 1.0 regardless.

Guard sync_window_stacking behind a check that the space already matches
the target order with uniform z_index, avoiding an O(n^2) raise_element
loop on every redraw. Narrow window_under_visual to the space iterator
outside Overview, keeping the collected and sorted candidate list for
the Overview branch where front-to-back order is load-bearing.

Raise rust-version to 1.98 and clear the resulting Clippy findings
across the workspace: let-chain collapses, clamp, and while-let loops.
This commit is contained in:
Samuel Onoja committed 2026-09-29 09:49:04 +01:00
1 parent 391f6b4e37
commit 67192c0c04
25 files changed
+886 -700
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compositor/src/winit.rs
+39 -40
View File
@@ -1017,7 +1017,7 @@ pub(crate) fn frame_effect_metrics(
_elements: &[AnimatedWindowRenderElement],
_scale: f64,
) -> FrameEffectMetrics {
FrameEffectMetrics::default()
FrameEffectMetrics
}
fn output_elements(
@@ -1220,45 +1220,44 @@ fn output_elements(
output,
&programs,
);
if !scale_content {
if let Some(snapshot) = state.resize_snapshots.get(&id)
&& snapshot.context == renderer.context_id().erased()
&& (snapshot.scale - scale).abs() < 0.001
{
let size = snapshot.texture.size();
let visible =
Rectangle::new(pixels.loc, (size.w, size.h).into()).intersection(pixels);
if let Some(visible) = visible {
let clip = framebuffer_clip_rect(
pixels,
output.current_mode().unwrap().size,
output.current_transform().invert(),
);
elements.push(
NativeTextureElement {
id: snapshot.id.clone(),
commit: snapshot.commit,
texture: snapshot.texture.clone(),
geometry: visible,
source: Rectangle::from_size(Size::from((
f64::from(visible.size.w),
f64::from(visible.size.h),
))),
alpha: crate::presentation::handoff_alpha(snapshot.elapsed)
* close_alpha,
program: Some(programs.texture.clone()),
uniforms: vec![
Uniform::new("clip_rect", clip).into_owned(),
Uniform::new(
"radius",
scaled_effect_value(window_radius, constrain, scale),
)
.into_owned(),
],
}
.into(),
);
}
if !scale_content
&& let Some(snapshot) = state.resize_snapshots.get(&id)
&& snapshot.context == renderer.context_id().erased()
&& (snapshot.scale - scale).abs() < 0.001
{
let size = snapshot.texture.size();
let visible =
Rectangle::new(pixels.loc, (size.w, size.h).into()).intersection(pixels);
if let Some(visible) = visible {
let clip = framebuffer_clip_rect(
pixels,
output.current_mode().unwrap().size,
output.current_transform().invert(),
);
elements.push(
NativeTextureElement {
id: snapshot.id.clone(),
commit: snapshot.commit,
texture: snapshot.texture.clone(),
geometry: visible,
source: Rectangle::from_size(Size::from((
f64::from(visible.size.w),
f64::from(visible.size.h),
))),
alpha: crate::presentation::handoff_alpha(snapshot.elapsed)
* close_alpha,
program: Some(programs.texture.clone()),
uniforms: vec![
Uniform::new("clip_rect", clip).into_owned(),
Uniform::new(
"radius",
scaled_effect_value(window_radius, constrain, scale),
)
.into_owned(),
],
}
.into(),
);
}
}
elements.extend(rounded_window_elements(