tree 243ba0aea53cb7186768f28884622647d3bd94dd
parent eaa10b993bb5badf5fd524016a520a3539f1678c
author Alexei Podtelezhnikov <apodtele@gmail.com> 1639193525 -0500
committer Alexei Podtelezhnikov <apodtele@gmail.com> 1639193525 -0500

[truetype] Binary search through `hdmx` records.

The `hdmx` table is supposed to be sorted by ppem size, which
enables binary search.  We also drop the check for the sufficient
length of the record because it is now enforced when the table
is loaded.

* include/freetype/internal/tttypes.h (TT_FaceRec): Store the `hdmx`
record pointers sorted by ppem instead of ppem's themselves.
* src/truetype/ttpload.c (tt_face_load_hdmx): Prudently sort records.
(tt_face_get_device_metrics): Implement binary search to retrieve
advances.