Overlay texts were previously drawn with two sets of shadows:
- 3px blur,
- 5px blur, slightly offset
But since the shadow color was always set to black, it was still
causing legibility issues when the text itself was dark (set
via theme for example).
This PR adds a new "outline" BLF text decoration, and uses that
for the overlays. And it picks text/outline color depending
on the "background" color of the view.
Details:
- Instead of "shadow level" integer where the only valid options
are 0, 3 or 5, have a FontShadowType enum.
- Add a new FontShadowType::Outline enum entry, that does a 1px
outline by doing a 3x3 dilation in the font shader.
- BLF_draw_default_shadowed is changed to do outline, instead of
drawing the shadow twice.
- In the font shader, instead of encoding shadow type in signs of
the glyph_size, pass that as a "flags" vertex attribute. Put
font texture channel count into the same flags, so that the
vertex size stays the same.
- Well actually, vertex size becomes smaller by 4 bytes, since turns
out glyph_mode vertex attribute was not used for anything at all.
Images in the PR.
Co-authored-by: Harley Acheson <harley.acheson@gmail.com>
Pull Request: https://projects.blender.org/blender/blender/pulls/121383
Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.
While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.
Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.
Some directories in `./intern/` have also been excluded:
- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.
An "AUTHORS" file has been added, using the chromium projects authors
file as a template.
Design task: #110784
Ref !110783.
Use PyC_ParseUnicodeAsBytesAndSize parser instead of "s" / "z" type
specifier. This relates to #111033, resolving Python exceptions which
causes icons not to load (for e.g.).
Now bytes are also supported as path arguments.
