mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-28 02:27:19 +02:00
3012c0fe72
Replace per-frame heap-allocated RefCounted ScrollFrame objects with a single contiguous Vector<ScrollFrame> inside ScrollState. All frames for a viewport are now stored in one allocation, using type-safe ScrollFrameIndex instead of RefPtr pointers. This reduces allocation churn, improves cache locality, and moves parent-chain traversal (cumulative offset, nearest scrolling ancestor) into ScrollState — similar to how visual context nodes were recently consolidated into AccumulatedVisualContextTree.
16 lines
504 B
Plaintext
16 lines
504 B
Plaintext
AccumulatedVisualContext Tree:
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[2] clip=[33,33 180x100]
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[3] scroll_frame_id=2 (PaintableWithLines(BlockContainer(anonymous)))
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DisplayList:
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SaveLayer@0
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FillRect@0 rect=[20,20 204x154] color=rgb(211, 211, 211)
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FillPath@0 path_bounding_rect=[20,20 204x154]
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FillPath@0 path_bounding_rect=[32,32 182x102]
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FillRect@3 rect=[33,33 300x200] color=rgb(240, 128, 128)
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DrawGlyphRun@3 rect=[33,33 179x18] translation=[33,46.796875] color=rgb(0, 0, 0)
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PaintScrollBar@0
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PaintScrollBar@0
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Restore@0
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