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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

@ -2,5 +2,5 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x33.46875 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 0x17.46875 children: inline
line 0 width: 0, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from SVGSVGBox start: 0, length: 0, rect: [8,21 0x0]
SVGSVGBox <svg> at (8,21) content-size 0x0 [SVG] children: not-inline
frag 0 from SVGSVGBox start: 0, length: 0, rect: [8,21.53125 0x0]
SVGSVGBox <svg> at (8,21.53125) content-size 0x0 [SVG] children: not-inline