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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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20
Tests/LibWeb/Layout/expected/inline-size.txt
View file

@ -1,20 +1,20 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x570.851562 [BFC] children: not-inline
BlockContainer <body> at (8,70) content-size 784x492.851562 children: not-inline
BlockContainer <html> at (0,0) content-size 800x570.84375 [BFC] children: not-inline
BlockContainer <body> at (8,70) content-size 784x492.84375 children: not-inline
BlockContainer <p.min-inline-test> at (8,70) content-size 784x200 children: inline
line 0 width: 85.859375, height: 76.425781, bottom: 76.425781, baseline: 59.199218
frag 0 from TextNode start: 0, length: 2, rect: [8,70 85.859375x76.425781]
line 0 width: 85.859375, height: 76.421875, bottom: 76.421875, baseline: 59.1875
frag 0 from TextNode start: 0, length: 2, rect: [8,70 85.859375x76.421875]
"KK"
TextNode <#text>
BlockContainer <(anonymous)> at (8,340) content-size 784x76.425781 children: inline
line 0 width: 0, height: 76.425781, bottom: 76.425781, baseline: 59.199218
BlockContainer <(anonymous)> at (8,340) content-size 784x76.421875 children: inline
line 0 width: 0, height: 76.421875, bottom: 76.421875, baseline: 59.1875
TextNode <#text>
BreakNode <br>
TextNode <#text>
BlockContainer <p.max-inline-test> at (8,486.425781) content-size 100x76.425781 children: inline
line 0 width: 85.859375, height: 76.425781, bottom: 76.425781, baseline: 59.199218
frag 0 from TextNode start: 0, length: 2, rect: [8,486.425781 85.859375x76.425781]
BlockContainer <p.max-inline-test> at (8,486.421875) content-size 100x76.421875 children: inline
line 0 width: 85.859375, height: 76.421875, bottom: 76.421875, baseline: 59.1875
frag 0 from TextNode start: 0, length: 2, rect: [8,486.421875 85.859375x76.421875]
"KK"
TextNode <#text>
BlockContainer <(anonymous)> at (8,632.851562) content-size 784x0 children: inline
BlockContainer <(anonymous)> at (8,632.84375) content-size 784x0 children: inline
TextNode <#text>