tree 8eaa07d5a92b3b505e67930439ba66b76ff0c40c
parent 705f4161841acf15909f29b1a40dc6996c5529ca
author Alexei Podtelezhnikov <apodtele@gmail.com> 1655608157 -0400
committer Alexei Podtelezhnikov <apodtele@gmail.com> 1655608157 -0400

[truetype] Clean up phantom point accounting.

This formalizes that the phantom points appended in the outline
do not increase its point count, nor are they tagged or included
in any additional contours.  Only their coordinates are stored.
They are counted in the glyph zone, however.

* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Infer `n_points`
from the outline size plus four phantom points.
* src/truetype/ttgxvar.h (TT_Vary_Apply_Glyph_Deltas): Remove this
argument.
* src/truetype/ttgload.c (tt_prepare_zone): Add phantom four.
(TT_Process_Simple_Glyph, load_truetype_glyph): Update all callers.