[carnelian] Avoid using empy glyph rasters

Don’t union them in the text struct and avoid them in
TextGridCell.

Testing: manual plus unit tests
Change-Id: I8a5e17bb6fb944279749b5f00383b457ac483103
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/534681
Reviewed-by: David Reveman <reveman@google.com>
Commit-Queue: Rob Tsuk <robtsuk@google.com>
1 file changed
tree: fb25761dceab0629553e3da2f818d0f4a7c5492b
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. products/
  9. scripts/
  10. sdk/
  11. src/
  12. third_party/
  13. tools/
  14. zircon/
  15. .clang-format
  16. .clang-tidy
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. .style.yapf
  22. AUTHORS
  23. BUILD.gn
  24. CODE_OF_CONDUCT.md
  25. CONTRIBUTING.md
  26. LICENSE
  27. OWNERS
  28. PATENTS
  29. README.md
  30. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

Read more about Fuchsia's principles.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.