[HarfBuzz] How to increase harfbuzz numerical precision

[Kelvin Ma]

It appears that harfbuzz rounds all decimals to integers when giving glyph
advances and offsets. This is causing some ugly misalignment problems in
arabic shaping, as well as latin cursive fonts. (see pictures)

[image: Inline image 1]

[image: Inline image 2]

[image: Inline image 3]
How do I get harfbuzz to preserve the floats?
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