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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/table/cell-relative-to-specified-table-width.txt
View file

@ -5,55 +5,55 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
Box <table> at (8,8) content-size 784x44.9375 table-box [TFC] children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tbody> at (8,8) content-size 776x38.9375 table-row-group children: not-inline
Box <tbody> at (8,8) content-size 775.96875x38.9375 table-row-group children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tr> at (10,10) content-size 776x19.46875 table-row children: not-inline
Box <tr> at (10,10) content-size 775.96875x19.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <th> at (11,11) content-size 300.639999x17.46875 table-cell [BFC] children: inline
BlockContainer <th> at (11,11) content-size 300.625x17.46875 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: [154,11 14.265625x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [154.171875,11 14.265625x17.46875]
"A"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <th> at (315.639999,11) content-size 168.719999x17.46875 table-cell [BFC] children: inline
BlockContainer <th> at (315.625,11) content-size 168.71875x17.46875 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: [395.639999,11 9.34375x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [395.3125,11 9.34375x17.46875]
"B"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <th> at (488.36,11) content-size 300.639999x17.46875 table-cell [BFC] children: inline
BlockContainer <th> at (488.34375,11) content-size 300.625x17.46875 table-cell [BFC] children: inline
line 0 width: 29.453125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 3, rect: [624.36,11 29.453125x17.46875]
frag 0 from TextNode start: 0, length: 3, rect: [623.921875,11 29.453125x17.46875]
"C D"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tr> at (10,31.46875) content-size 776x19.46875 table-row children: not-inline
Box <tr> at (10,31.46875) content-size 775.96875x19.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (11,32.46875) content-size 300.639999x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (11,32.46875) content-size 300.625x17.46875 table-cell [BFC] children: inline
line 0 width: 11.859375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [155,32.46875 11.859375x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [155.375,32.46875 11.859375x17.46875]
"E"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (315.639999,32.46875) content-size 168.719999x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (315.625,32.46875) content-size 168.71875x17.46875 table-cell [BFC] children: inline
line 0 width: 12.546875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [393.639999,32.46875 12.546875x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [393.703125,32.46875 12.546875x17.46875]
"F"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (488.36,32.46875) content-size 300.639999x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (488.34375,32.46875) content-size 300.625x17.46875 table-cell [BFC] children: inline
line 0 width: 13.234375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [632.36,32.46875 13.234375x17.46875]
frag 0 from TextNode start: 0, length: 1, rect: [632.03125,32.46875 13.234375x17.46875]
"G"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline