so I've played around with babl a bit, and quite a few questions came
up. Is there a separate babl mailing list?
Getting the conversions symmetric is possible, but at a cost. Without
any other changes, increasing the bits from 16 to 20 gives perfect
round-trip accuracy, but it also becomes about 4x slower; probably due
to the increased size (x32) of lookup tables. So that would definitely
need more work.
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