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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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30
Tests/LibWeb/Layout/expected/block-and-inline/block-with-min-content-width.txt
View file

@ -1,33 +1,33 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (1,1) content-size 798x130.21875 [BFC] children: not-inline
BlockContainer <body> at (10,10) content-size 780x112.21875 children: not-inline
BlockContainer <div.foo> at (11,11) content-size 93.765625x35.40625 children: inline
BlockContainer <html> at (1,1) content-size 798x128.8125 [BFC] children: not-inline
BlockContainer <body> at (10,10) content-size 780x110.8125 children: not-inline
BlockContainer <div.foo> at (11,11) content-size 93.765625x34.9375 children: inline
line 0 width: 43.578125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 6, rect: [11,11 43.578125x17.46875]
"width:"
line 1 width: 93.765625, height: 17.9375, bottom: 35.40625, baseline: 13.53125
frag 0 from TextNode start: 7, length: 11, rect: [11,28 93.765625x17.46875]
line 1 width: 93.765625, height: 17.46875, bottom: 34.9375, baseline: 13.53125
frag 0 from TextNode start: 7, length: 11, rect: [11,28.46875 93.765625x17.46875]
"min-content"
TextNode <#text>
BlockContainer <(anonymous)> at (10,47.40625) content-size 780x0 children: inline
BlockContainer <(anonymous)> at (10,46.9375) content-size 780x0 children: inline
TextNode <#text>
BlockContainer <div.bar> at (11,48.40625) content-size 93.765625x35.40625 children: inline
BlockContainer <div.bar> at (11,47.9375) content-size 93.765625x34.9375 children: inline
line 0 width: 81.3125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 10, rect: [11,48.40625 81.3125x17.46875]
frag 0 from TextNode start: 0, length: 10, rect: [11,47.9375 81.3125x17.46875]
"max-width:"
line 1 width: 93.765625, height: 17.9375, bottom: 35.40625, baseline: 13.53125
line 1 width: 93.765625, height: 17.46875, bottom: 34.9375, baseline: 13.53125
frag 0 from TextNode start: 11, length: 11, rect: [11,65.40625 93.765625x17.46875]
"min-content"
TextNode <#text>
BlockContainer <(anonymous)> at (10,84.8125) content-size 780x0 children: inline
BlockContainer <(anonymous)> at (10,83.875) content-size 780x0 children: inline
TextNode <#text>
BlockContainer <div.baz> at (11,85.8125) content-size 93.765625x35.40625 children: inline
BlockContainer <div.baz> at (11,84.875) content-size 93.765625x34.9375 children: inline
line 0 width: 76.4375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 10, rect: [11,85.8125 76.4375x17.46875]
frag 0 from TextNode start: 0, length: 10, rect: [11,84.875 76.4375x17.46875]
"min-width:"
line 1 width: 93.765625, height: 17.9375, bottom: 35.40625, baseline: 13.53125
frag 0 from TextNode start: 11, length: 11, rect: [11,102.8125 93.765625x17.46875]
line 1 width: 93.765625, height: 17.46875, bottom: 34.9375, baseline: 13.53125
frag 0 from TextNode start: 11, length: 11, rect: [11,102.34375 93.765625x17.46875]
"min-content"
TextNode <#text>
BlockContainer <(anonymous)> at (10,122.21875) content-size 780x0 children: inline
BlockContainer <(anonymous)> at (10,120.8125) content-size 780x0 children: inline
TextNode <#text>