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🐛 Fix fills and strokes opacity shouldn't affect shadows

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This commit is contained in:
Alejandro Alonso
2025-09-08 13:04:52 +02:00
parent ff55318c04
commit 8fff9afee6
1 changed files with 28 additions and 3 deletions
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31
render-wasm/src/render.rs
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@@ -22,7 +22,9 @@ use options::RenderOptions;
pub use surfaces::{SurfaceId, Surfaces};
use crate::performance;
use crate::shapes::{Blur, BlurType, Corners, Fill, Shadow, Shape, StructureEntry, Type};
use crate::shapes::{
Blur, BlurType, Corners, Fill, Shadow, Shape, SolidColor, Stroke, StructureEntry, Type,
};
use crate::state::ShapesPool;
use crate::textlayout::{
paragraph_builder_group_from_text, stroke_paragraph_builder_group_from_text,
@@ -1062,9 +1064,32 @@ impl RenderState {
) {
let mut transformed_shadow: Cow<Shadow> = Cow::Borrowed(shadow);
transformed_shadow.to_mut().offset = (0., 0.);
transformed_shadow.to_mut().color = skia::Color::from_argb(255, 0, 0, 0);
transformed_shadow.to_mut().color = skia::Color::BLACK;
transformed_shadow.to_mut().blur = transformed_shadow.blur * scale;
let mut plain_shape = Cow::Borrowed(shape);
// The opacity of fills and strokes shouldn't affect the shadow,
// so we paint everything black with the same opacity
plain_shape.to_mut().clear_fills();
if shape.has_fills() {
plain_shape
.to_mut()
.add_fill(Fill::Solid(SolidColor(skia::Color::BLACK)));
}
plain_shape.to_mut().clear_strokes();
for stroke in shape.strokes.iter() {
plain_shape.to_mut().add_stroke(Stroke {
fill: Fill::Solid(SolidColor(skia::Color::BLACK)),
width: stroke.width,
style: stroke.style.clone(),
cap_end: stroke.cap_end,
cap_start: stroke.cap_start,
kind: stroke.kind,
});
}
let mut shadow_paint = skia::Paint::default();
shadow_paint.set_image_filter(transformed_shadow.get_drop_shadow_filter());
shadow_paint.set_blend_mode(skia::BlendMode::SrcOver);
@@ -1085,7 +1110,7 @@ impl RenderState {
shapes,
modifiers,
structure,
shape,
&plain_shape,
scale_content,
clip_bounds,
SurfaceId::DropShadows,