We'd like to use this optimization in the platform layer as well.
Turning it into an inline function via __emit__() also allows us to
turn a bunch of other macros into proper inline functions.
Part of P0232, funded by [Anonymous].
In which the shrink types """conveniently""" use a signed comparison
that effectively limits their width to 127 pixels, which forces a
shrink/nonshrink distinction upon the entire rest of the code. 🙄
Part of P0228, funded by [Anonymous] and nrook.
nmlgc