tree d21ddf20bf9be4e456d39cf80927dfdb8b89dedc
parent f27b4834b7dcf9d667fd5173106be0cddb0ec1c2
author Dominik Röttsches <drott@chromium.org> 1624989092 +0300
committer Werner Lemberg <wl@gnu.org> 1625112922 +0200

[sfnt] Handle fonts without layer list in 'COLR' v1.

'COLR' v1 fonts do not necessarily need to have a layer list; for
this reason, 'fontTools' recently started generating fonts in a way
that drops the layer list if there are no layers in it.  This
results in the layer list offset becoming zero, which FreeType
treated as an invalid table.  Fix that and handle the case for layer
list offset being 0.  This slightly changes how we need to calculate
the starting offset for paints.

* src/sfnt/ttcolr.c (tt_face_load_colr): Handle case of layer list
offset being zero without outright rejecting table.