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LibWeb+WebContent: Move display list rasterization off the main thread

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The display list is an immutable data structure, so once it's created,
rasterization can be moved to a separate thread. This allows more room
for performing other tasks between processing HTML rendering tasks.

This change makes PaintingSurface, ImmutableBitmap, and GlyphRun atomic
ref-counted, as they are shared between the main and rendering threads
by being included in the display list.
This commit is contained in:
Aliaksandr Kalenik 2025-02-25 04:07:53 +01:00 • committed by Alexander Kalenik
commit 24e2c402f5
Notes: github-actions[bot] 2025-03-31 14:59:11 +00:00
16 changed files with 180 additions and 42 deletions
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2
Services/WebWorker/PageHost.cpp
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@ -77,7 +77,7 @@ Web::CSS::PreferredMotion PageHost::preferred_motion() const
return Web::CSS::PreferredMotion::Auto;
}
void PageHost::paint(Web::DevicePixelRect const&, Web::Painting::BackingStore&, Web::PaintOptions)
void PageHost::start_display_list_rendering(Web::DevicePixelRect const&, Web::Painting::BackingStore&, Web::PaintOptions, Function<void()>&&)
{
}