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Revert "LibWeb/CSS: Implement 'background-blend-mode'"

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This reverts commit a73cd88f0c.

Emitting SaveLayer for each paintable made rasterization a lot slower
on every website because now Skia has to allocate enormous amounts of
temporary surfaces. Let's revert it for now and figure how to implement
it with less aggressive SaveLayer usage.
This commit is contained in:
Aliaksandr Kalenik 2025-03-28 13:45:50 +00:00 • committed by Alexander Kalenik
commit 552dd18696
Notes: github-actions[bot] 2025-03-28 16:49:06 +00:00
27 changed files with 199 additions and 303 deletions
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1
Libraries/LibWeb/CSS/ComputedValues.h
View file

@ -296,7 +296,6 @@ struct BackgroundLayerData {
CSS::LengthPercentage size_y { CSS::Length::make_auto() };
CSS::Repeat repeat_x { CSS::Repeat::Repeat };
CSS::Repeat repeat_y { CSS::Repeat::Repeat };
CSS::MixBlendMode blend_mode { CSS::MixBlendMode::Normal };
};
struct BorderData {

1
Libraries/LibWeb/CSS/Parser/PropertyParsing.cpp
View file

@ -443,7 +443,6 @@ Parser::ParseErrorOr<NonnullRefPtr<CSSStyleValue>> Parser::parse_css_value(Prope
return parsed_value.release_nonnull();
return ParseError::SyntaxError;
case PropertyID::BackgroundAttachment:
case PropertyID::BackgroundBlendMode:
case PropertyID::BackgroundClip:
case PropertyID::BackgroundImage:
case PropertyID::BackgroundOrigin:

8
Libraries/LibWeb/CSS/Properties.json
View file

@ -327,14 +327,6 @@
"background-attachment"
]
},
"background-blend-mode": {
"animation-type": "none",
"inherited": false,
"initial": "normal",
"valid-types": [
"mix-blend-mode"
]
},
"background-clip": {
"affects-layout": false,
"animation-type": "repeatable-list",