[ft-devel] rendering speedup

[mviikki16]

After doing a few speed measurements to a Qt based program I found that
freetype was producing a few hotspots, two of them in src/smooth/ftsmooth.c

With the patch attached the time spent there was reduced some 50% (by
block re-allocations and more effective initialization). Perhaps you'll
find it worthwhile for mailine integration.

Regards,
/Mikko

optim.patch
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