[ft-devel] major autohinter change

[Werner LEMBERG]

Folks,


I've just committed the following:

        [autofit] Fix segment classification for blue zones.

        The old code (essentially unchanged since the very beginning)
        incorrectly handled this configuration

                       x -o- x
                        /   \
                       /     \
                      /       \
                     o         o

        as flat and this

                        o               o
                       /               /
                     x|              x|
                      |               |
                      o---------------o

        as round.  (`o' and `x' are on and off points, respectively). 

        This is a major change which should improve the rendering results
        enormously for many TrueType fonts, especially in the range approx. 
        20-40ppem, fixing the appearance of many overshoots.

        * src/autofit/aflatin.c (af_latin_metrics_init_blues): Look at the
        first and last points of the segment, not the points right before
        and after.

Please test this!


     Werner