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[GVAR] Change GlyphVariationData Header dataOffset field to 24bit #162

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behdad opened this issue Dec 3, 2024 · 0 comments
Open

[GVAR] Change GlyphVariationData Header dataOffset field to 24bit #162

behdad opened this issue Dec 3, 2024 · 0 comments

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@behdad
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behdad commented Dec 3, 2024

In the GVAR equivalent of this gvar section:
https://learn.microsoft.com/en-us/typography/opentype/spec/gvar#the-glyphvariationdata-table-array

We've seen actual font builds hit the 64kb limit of that dataOffset field. Bumping to 24bits removes one of the tightest gvar limitations, perhaps the only practical one.
behdad added a commit to fonttools/fonttools that referenced this issue Dec 10, 2024
@behdad
[GVAR] Change offsetToData size to 24bit
e8bcce6 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to fonttools/fonttools that referenced this issue Dec 10, 2024
@behdad
[GVAR] Change offsetToData size to 24bit
eb1c88c 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to harfbuzz/harfbuzz that referenced this issue Dec 10, 2024
@behdad
[GVAR] Change offsetToData size to 24bit
057cb00 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to fonttools/fonttools that referenced this issue Dec 10, 2024
@behdad
[GVAR] Change offsetToData size to 24bit
99301e5 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to fonttools/fonttools that referenced this issue Dec 10, 2024
@behdad
[GVAR] Change offsetToData size to 24bit
f7a3ac4 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to fonttools/fonttools that referenced this issue Dec 10, 2024
@behdad
[GVAR] Change offsetToData size to 24bit
9fa5164 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to harfbuzz/harfbuzz that referenced this issue Feb 26, 2025
@behdad
[GVAR] Change offsetToData size to 24bit
0e2b99d 
As per harfbuzz/boring-expansion-spec#162
behdad added a commit to harfbuzz/harfbuzz that referenced this issue Feb 26, 2025
@behdad
[GVAR] Change offsetToData size to 24bit
ffe955b 
As per harfbuzz/boring-expansion-spec#162
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@behdad