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LibWeb: Use fixed-point saturated arithmetics for CSSPixels

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

View file

@ -3,7 +3,7 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <body> at (8,8) content-size 784x0 children: not-inline
BlockContainer <div.hello> at (8,8) content-size 784x0 children: not-inline
BlockContainer <(anonymous)> at (8,8) content-size 500x100 positioned [BFC] children: inline
line 0 width: 0, height: 21.835937, bottom: 21.835937, baseline: 16.914062
frag 0 from TextNode start: 0, length: 0, rect: [8,8 0x21.835937]
line 0 width: 0, height: 21.828125, bottom: 21.828125, baseline: 16.890625
frag 0 from TextNode start: 0, length: 0, rect: [8,8 0x21.828125]
""
TextNode <#text>