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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/table/colspan-width-distribution.txt
View file

@ -5,34 +5,34 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <body> at (8,8) content-size 784x44.9375 children: not-inline
BlockContainer <(anonymous)> at (8,8) content-size 784x0 children: inline
TextNode <#text>
TableWrapper <(anonymous)> at (8,8) content-size 39.3125x44.9375 [BFC] children: not-inline
Box <table> at (9,9) content-size 37.3125x42.9375 table-box [TFC] children: not-inline
TableWrapper <(anonymous)> at (8,8) content-size 39.203125x44.9375 [BFC] children: not-inline
Box <table> at (9,9) content-size 37.203125x42.9375 table-box [TFC] children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tbody> at (9,9) content-size 37.3125x42.9375 table-row-group children: not-inline
Box <tr> at (9,9) content-size 37.3125x21.46875 table-row children: not-inline
Box <tbody> at (9,9) content-size 37.203125x42.9375 table-row-group children: not-inline
Box <tr> at (9,9) content-size 37.203125x21.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (11,11) content-size 17.561202x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (11,11) content-size 17.46875x17.46875 table-cell [BFC] children: inline
line 0 width: 14.265625, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [13,11 14.265625x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [12.59375,11 14.265625x17.46875]
"A"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (32.561202,11) content-size 11.751297x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (32.46875,11) content-size 11.734375x17.46875 table-cell [BFC] children: inline
line 0 width: 9.34375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [33.561202,11 9.34375x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [33.65625,11 9.34375x17.46875]
"B"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tr> at (9,30.46875) content-size 37.3125x21.46875 table-row children: not-inline
Box <tr> at (9,30.46875) content-size 37.203125x21.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (11,32.46875) content-size 33.3125x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (11,32.46875) content-size 33.203125x17.46875 table-cell [BFC] children: inline
line 0 width: 33.3125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 3, rect: [11,32.46875 33.3125x17.46875]
"CDE"