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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

@ -9,14 +9,14 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <div.buttons> at (394.625,11) content-size 114.375x50 flex-item [BFC] children: inline
line 0 width: 114.375, height: 19.46875, bottom: 19.46875, baseline: 14.53125
frag 0 from BlockContainer start: 0, length: 0, rect: [395.625,12 57.046875x17.46875]
frag 1 from BlockContainer start: 0, length: 0, rect: [454.625,12 53.328125x17.46875]
frag 1 from BlockContainer start: 0, length: 0, rect: [454.671875,12 53.328125x17.46875]
BlockContainer <div.button> at (395.625,12) content-size 57.046875x17.46875 inline-block [BFC] children: inline
line 0 width: 57.046875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 6, rect: [395.625,12 57.046875x17.46875]
"Accept"
TextNode <#text>
BlockContainer <div.button> at (454.625,12) content-size 53.328125x17.46875 inline-block [BFC] children: inline
BlockContainer <div.button> at (454.671875,12) content-size 53.328125x17.46875 inline-block [BFC] children: inline
line 0 width: 53.328125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 6, rect: [454.625,12 53.328125x17.46875]
frag 0 from TextNode start: 0, length: 6, rect: [454.671875,12 53.328125x17.46875]
"Reject"
TextNode <#text>