[PATCH] Fix FP1616 macro

[Keith Packard]

Daniel Martin <consume.noise at gmail.com> writes:

> The macro is used with frac != 0 in to places, only. Maybe that's why
> nobody noticed that mistake before:

Yeah, except the fraction really is a fraction -- it's a floating point
value between 0 and 1.

Changing this to an inline function that declares the type of the second
arg as 'float' would make this clear.

-- 
keith.packard at intel.com
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