tree 6fa032908eef933fec86c310e2745493acdb0355
parent a113e5df0cc31425e7bb4135cd297305db33d0ed
author Werner Lemberg <wl@gnu.org> 1557559759 +0200
committer Werner Lemberg <wl@gnu.org> 1557561717 +0200

[truetype] Increase precision of font variation (#54371).

This patch make FreeType use font units in 26.6 format internally
instead of integers.

* src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro.
(TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font
coordinates.
* src/truetype/ttgxvar.h: Updated.

* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use
`extra_points2' array to temporarily hold unrounded point
coordinates; use them to compute scaled coordinates and linear
advance width and height.
(load_truetype_code): Adjust similarly.