font/opentype: add Parse and similar functions

They delegate to the corresponding sfnt functions. Users (such as
example_test.go) now only need to import one package: opentype.

Also expand opentype and sfnt package docs to emphasize their
differences.

Change-Id: If641f978baa147780e5521aa3e65ee7db3ac1bc3
Reviewed-on: https://go-review.googlesource.com/c/image/+/257539
Trust: Nigel Tao <nigeltao@golang.org>
Reviewed-by: Hajime Hoshi <hajimehoshi@gmail.com>
3 files changed
tree: aedbfa426c396f7d491e150b83a9ed636cc9c68d
  1. bmp/
  2. ccitt/
  3. cmd/
  4. colornames/
  5. draw/
  6. example/
  7. font/
  8. math/
  9. riff/
  10. testdata/
  11. tiff/
  12. vector/
  13. vp8/
  14. vp8l/
  15. webp/
  16. .gitattributes
  17. .gitignore
  18. AUTHORS
  19. codereview.cfg
  20. CONTRIBUTING.md
  21. CONTRIBUTORS
  22. go.mod
  23. go.sum
  24. LICENSE
  25. PATENTS
  26. README.md
README.md

Go Images

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