srwalter/libsmartpen — pull request #4 by yonran (2013-10-24 03:09:47+00:00)
Title: Fix parsing (x,y) byte deltas in stf file.

Within a stroke, each coordinate can be encoded using an absolute position, an 8-bit delta, or a prefix-free coded delta. Fix the 8-bit deltas, which are actually signed integers.