hb.repack failed to serialize 'GPOS', works with pure fonttools
See original GitHub issueI’m trying to build a variable font, and it fails with hb.repack failed to serialize 'GPOS'
when uharfbuzz is installed, but works when uharfbuzz
is not available (but then fontbakery fails …).
I’ve seen some similar issues which were apparently resolved, so I’m wondering if this still happening is a bug?
FontTools’ successful fixing:
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 9, 'ItemName:', 'Coverage', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 9, 'ItemName:', 'Coverage', 'ItemIndex:', None)
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 9, 'ItemName:', '<none>', 'ItemIndex:', None)
Traceback with harfbuzz:
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
WARNING:fontTools.ttLib.tables.otBase:hb.repack failed to serialize 'GPOS', reverting to pure-python serializer; the error message was: RepackerError
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
DEBUG:fontTools.ttLib.tables.otBase:serializing 'GPOS' with hb.repack
INFO:fontTools.ttLib.tables.otBase:Attempting to fix OTLOffsetOverflowError ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
ERROR:root:In 'master_ufo/TestVariable.designspace': Generating fonts from Designspace failed: ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
Traceback (most recent call last):
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 111, in compile
return writer.getAllDataUsingHarfbuzz()
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 555, in getAllDataUsingHarfbuzz
return hb.repack(data, obj_list)
File "src/uharfbuzz/_harfbuzz.pyx", line 1219, in uharfbuzz._harfbuzz.repack
uharfbuzz._harfbuzz.RepackerError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 343, in getData
items[i] = packUShort(item.pos - pos)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 730, in packUShort
return struct.pack(">H", value)
struct.error: 'H' format requires 0 <= number <= 65535
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/jens/Code/fontmake/Lib/fontmake/font_project.py", line 1057, in run_from_designspace
self._run_from_designspace_interpolatable(
File "/Users/jens/Code/fontmake/Lib/fontmake/font_project.py", line 1147, in _run_from_designspace_interpolatable
self.build_variable_fonts(
File "/Users/jens/Code/fontmake/Lib/fontmake/font_project.py", line 378, in build_variable_fonts
fonts = ufo2ft.compileVariableTTFs(
File "/Users/jens/Documents/Schriften/Variable-Fonts/venv/lib/python3.10/site-packages/ufo2ft/__init__.py", line 605, in compileVariableTTFs
vfNameToTTFont[vfName] = call_postprocessor(
File "/Users/jens/Documents/Schriften/Variable-Fonts/venv/lib/python3.10/site-packages/ufo2ft/__init__.py", line 77, in call_postprocessor
postProcessor = postProcessorClass(otf, ufo, glyphSet=glyphSet)
File "/Users/jens/Documents/Schriften/Variable-Fonts/venv/lib/python3.10/site-packages/ufo2ft/postProcessor.py", line 50, in __init__
self.otf = _reloadFont(otf)
File "/Users/jens/Documents/Schriften/Variable-Fonts/venv/lib/python3.10/site-packages/ufo2ft/postProcessor.py", line 396, in _reloadFont
font.save(stream)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/ttFont.py", line 184, in save
writer_reordersTables = self._save(tmp)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/ttFont.py", line 224, in _save
self._writeTable(tag, writer, done, tableCache)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/ttFont.py", line 647, in _writeTable
tabledata = self.getTableData(tag)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/ttFont.py", line 669, in getTableData
return self.tables[tag].compile(self)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 128, in compile
return writer.getAllData(remove_duplicate=False)
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 585, in getAllData
tableData = table.getData()
File "/Users/jens/Code/fonttools/Lib/fontTools/ttLib/tables/otBase.py", line 348, in getData
raise OTLOffsetOverflowError(overflowErrorRecord)
fontTools.ttLib.tables.otBase.OTLOffsetOverflowError: ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/jens/Code/fontmake/Lib/fontmake/__main__.py", line 627, in main
project.run_from_designspace(inputs.designspace_path, **args)
File "/Users/jens/Code/fontmake/Lib/fontmake/font_project.py", line 1072, in run_from_designspace
raise FontmakeError(
fontmake.errors.FontmakeError: In 'master_ufo/TestVariable.designspace': Generating fonts from Designspace failed: ('GPOS', 'LookupIndex:', 3, 'SubTableIndex:', 0, 'ItemName:', 'PairSet.<none>', 'ItemIndex:', None)
make: *** [variable_ttf/TestVariable.ttf] Error 1
Issue Analytics
- State:
- Created a year ago
- Comments:25 (15 by maintainers)
Top Results From Across the Web
FontTools
fontTools is a library for manipulating fonts, written in Python. The project includes the TTX tool, that can convert TrueType and OpenType fonts...
Read more >[wpt-sync] Sync PR 33764 - Bump fonttools from 4.33.0 to 4.33.2 ...
<li>[otBase] Make logging less verbose when harfbuzz fails to serialize (<a ... at least until hb.repack implements proper table splitting.</li>
Read more >fonts/py-fonttools
FontTools is a library for manipulating fonts, written in Python. It supports TrueType, OpenType, AFM and to an extent Type 1 and some...
Read more >e2327f4db2f1643398d124c8c5a...
GDEF support is the recommended + one and expected to work properly after issues ... harfbuzz hb-subset-fuzzer ``` + +## Profiling + +```...
Read more >https://gitee.com/openharmony/third_party_harfbuzz...
Serialized buffers + are now delimited with `<>` or `[]` based on whether it is a Unicode or + glyphs buffer. +- Increase...
Read more >Top Related Medium Post
No results found
Top Related StackOverflow Question
No results found
Troubleshoot Live Code
Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start FreeTop Related Reddit Thread
No results found
Top Related Hackernoon Post
No results found
Top Related Tweet
No results found
Top Related Dev.to Post
No results found
Top Related Hashnode Post
No results found
Top GitHub Comments
It looks like this fix is also needed: https://github.com/harfbuzz/harfbuzz/commit/9559d3c1c16812ed202852977ab11f10e3ebe804
I’ll ask to get a new harfbuzz and uharfbuzz release made.
uharfbuzz 0.30.0 still does not yet have support for table splitting of MarkBasePos, I’m working to get a new release cut which will include support for MarkBasePos splitting and some additional bugfixes: https://github.com/harfbuzz/uharfbuzz/issues/136
I tested building the provided font against uharfbuzz and harfbuzz head and it works.