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Update FreeType from Chromium 112.0.5615.134 #2115

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merged 2 commits into from
Dec 19, 2023

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b/172481249

This is a generalization of commit

```
commit e6699596af5c5d6f0ae0ea06e19df87dce088df8
Author: Werner Lemberg <[email protected]>
Date:   Thu Feb 2 11:38:04 2017 +0100

    [truetype] Fix MVAR post-action handling.
```

It is also possible for plain `CFF ` style fonts to contain an `fvar` and
`MVAR` table and use `cff_metrics_adjust`.  `tt_size_reset` should only be
called with `TT_Size` and never with `CFF_Size`.

Allow the "metrics-variations" service to specify the correct function (if
any) to reset `FT_Size`s after adjusting metrics.

* src/truetype/ttobjs.c (tt_size_reset): Split off some functionality
into...
(tt_size_reset_height): ... this new function.

* src/truetype/ttdriver.c (tt_service_metrics_variations): Add
`size_reset`.
(tt_size_select, tt_size_request): Updated.

* src/truetype/ttobjs.h: Updated.

* include/freetype/internal/services/svmetric.h (MetricsVariations): Add
`size_reset`.
(FT_DEFINE_SERVICE_METRICSVARIATIONSREC): Updated.

* include/freetype/internal/tttypes.h (TT_FaceRec_): Rename `var` to
`tt_var` and add `face_var`.

* src/cff/cffdrivr.c (cff_service_metrics_variations): Add `size_reset`.
(cff_hadvance_adjust, cff_metrics_adjust): Updated.

* src/cff/cffobjs.c (cff_face_init): Use `face_var`.

* src/sfnt/sfobjs.c (sfnt_init_face): Initialize `face_var`.

* src/sfnt/ttmtx.c (tt_face_get_metrics): Use `tt_var`.

* src/truetype/ttgxvar.c (tt_size_reset_iterator): Renamed to...
(ft_size_reset_iterator): ... this new function.
Call `size_reset`.
(tt_apply_mvar): Pass `size_reset` to `ft_size_reset_iterator`.

Fixes youtube#1211

git-subtree-dir: third_party/freetype2
git-subtree-split: e78e2d29a95baf6053e30cc9422aa20319259803
@dahlstrom-g dahlstrom-g marked this pull request as ready for review December 18, 2023 17:00
@dahlstrom-g dahlstrom-g merged commit e5680fb into youtube:main Dec 19, 2023
322 of 329 checks passed
@dahlstrom-g dahlstrom-g deleted the freetype-112.0.5615.134 branch December 19, 2023 03:00
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3 participants