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LibWeb: Use fixed-point saturated arithmetics for CSSPixels

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Using fixed-point saturated arithmetics for CSSPixels allows to avoid
accumulating floating-point errors.

This implementation is not complete yet: currently saturated
arithmetics implemented only for addition. But it is enough to not
regress any of layout tests we have :)

See https://github.com/SerenityOS/serenity/issues/18566
This commit is contained in:
Aliaksandr Kalenik 2023-07-23 01:09:39 +02:00 • committed by Andreas Kling
parent 5cdd03fc53
commit bec07d4af7
136 changed files with 1938 additions and 1844 deletions
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16
Tests/LibWeb/Layout/expected/table/fixed-margins.txt
View file

@ -1,15 +1,15 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x35.40625 children: not-inline
BlockContainer <div.wrapper> at (8,8) content-size 784x35.40625 children: not-inline
TableWrapper <(anonymous)> at (108,8) content-size 584x35.40625 [BFC] children: not-inline
Box <div.box> at (108,8) content-size 584x35.40625 table-box [TFC] children: not-inline
Box <(anonymous)> at (108,8) content-size 584x35.40625 table-row children: not-inline
BlockContainer <div.cell> at (108,8) content-size 584x35.40625 table-cell [BFC] children: inline
BlockContainer <body> at (8,8) content-size 784x34.9375 children: not-inline
BlockContainer <div.wrapper> at (8,8) content-size 784x34.9375 children: not-inline
TableWrapper <(anonymous)> at (108,8) content-size 584x34.9375 [BFC] children: not-inline
Box <div.box> at (108,8) content-size 584x34.9375 table-box [TFC] children: not-inline
Box <(anonymous)> at (108,8) content-size 575.171875x34.9375 table-row children: not-inline
BlockContainer <div.cell> at (108,8) content-size 575.171875x34.9375 table-cell [BFC] children: inline
line 0 width: 569.859375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 58, rect: [108,8 569.859375x17.46875]
"DaTa DisplaYiNg CSS WeBpaGE ScReEn OF aR AddITioN COmmOnLY"
line 1 width: 399.9375, height: 17.9375, bottom: 35.40625, baseline: 13.53125
frag 0 from TextNode start: 59, length: 40, rect: [108,25 399.9375x17.46875]
line 1 width: 399.9375, height: 17.46875, bottom: 34.9375, baseline: 13.53125
frag 0 from TextNode start: 59, length: 40, rect: [108,25.46875 399.9375x17.46875]
"To AdJuSt PRiCiNG sTYLiNG ceLL oF TAbLeS"
TextNode <#text>