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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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28
Tests/LibWeb/Layout/expected/table/align-top-and-bottom.txt
View file

@ -1,43 +1,43 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x100.9375 children: not-inline
TableWrapper <(anonymous)> at (8,8) content-size 200.328125x100.9375 [BFC] children: not-inline
Box <table> at (9,9) content-size 198.328125x98.9375 table-box [TFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x98.9375 children: not-inline
TableWrapper <(anonymous)> at (8,8) content-size 197.328125x98.9375 [BFC] children: not-inline
Box <table> at (9,9) content-size 195.328125x96.9375 table-box [TFC] children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tbody> at (9,9) content-size 198.328125x98.9375 table-row-group children: not-inline
Box <tr> at (9,9) content-size 198.328125x49.46875 table-row children: not-inline
Box <tbody> at (9,9) content-size 195.328125x96.9375 table-row-group children: not-inline
Box <tr> at (9,9) content-size 195.328125x48.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (25,25) content-size 32.078125x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (24.5,24.5) content-size 32.078125x17.46875 table-cell [BFC] children: inline
line 0 width: 32.078125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 3, rect: [25,25 32.078125x17.46875]
frag 0 from TextNode start: 0, length: 3, rect: [24.5,24.5 32.078125x17.46875]
"Top"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (89.078125,74.46875) content-size 55.984375x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (87.578125,72.96875) content-size 55.984375x17.46875 table-cell [BFC] children: inline
line 0 width: 55.984375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 6, rect: [89.078125,74.46875 55.984375x17.46875]
frag 0 from TextNode start: 0, length: 6, rect: [87.578125,72.96875 55.984375x17.46875]
"Bottom"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (177.0625,25) content-size 14.265625x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (174.5625,24.5) content-size 14.265625x17.46875 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: [177.0625,25 14.265625x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [174.5625,24.5 14.265625x17.46875]
"A"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tr> at (9,58.46875) content-size 198.328125x49.46875 table-row children: not-inline
Box <tr> at (9,57.46875) content-size 195.328125x48.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (177.0625,74.46875) content-size 14.265625x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (174.5625,72.96875) content-size 14.265625x17.46875 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: [177.0625,74.46875 9.34375x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [174.5625,72.96875 9.34375x17.46875]
"B"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline