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[vmtx] Fix v_origin when no vmtx available

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Behdad Esfahbod 2025-03-28 15:50:05 -06:00
parent c39ac0e171
commit ef95dc0e7f
1 changed files with 7 additions and 1 deletions
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8
src/hb-ot-hmtx-table.hh
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@ -359,7 +359,13 @@ struct hmtxvmtx
return true;
}
return _glyf_get_leading_bearing_with_var_unscaled (font, glyph, T::tableTag == HB_OT_TAG_vmtx, lsb);
// If there's no vmtx data, the phantom points from glyf table are not accurate,
// so we cannot take the next path.
bool is_vertical = T::tableTag == HB_OT_TAG_vmtx;
if (is_vertical && !has_data ())
return false;
return _glyf_get_leading_bearing_with_var_unscaled (font, glyph, is_vertical, lsb);
#else
return false;
#endif