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android / platform / external / libdisplay-info / cad7de92c772b5b5291eca8ebf1c91c5e9635002
commitcad7de92c772b5b5291eca8ebf1c91c5e9635002[log] [tgz]
authorSimon Ser <[email protected]>Thu Sep 29 17:06:24 2022 +0200
committerSimon Ser <[email protected]>Mon Oct 03 08:56:03 2022 +0200
tree3f342ea34f9bee3f9adbacf5a5e365763bd2ff1a
parentd7144ad9b99363d148b55ce9a6968a97a3f08bbf [diff]
displayid: add support for display parameters data block

Signed-off-by: Simon Ser <[email protected]>
5 files changed
tree: 3f342ea34f9bee3f9adbacf5a5e365763bd2ff1a
  1. include/
  2. test/
  3. tool/
  4. .editorconfig
  5. .gitlab-ci.yml
  6. cta.c
  7. di-edid-decode.c
  8. displayid.c
  9. dmt-table.c
  10. edid.c
  11. gtf.c
  12. info.c
  13. libdisplay-info.map
  14. LICENSE
  15. log.c
  16. meson.build
  17. README.md
README.md

libdisplay-info

EDID and DisplayID library.

Goals:

  • Provide a set of high-level, easy-to-use, opinionated functions as well as low-level functions to access detailed information.
  • Simplicity and correctness over performance and resource usage.
  • Well-tested and fuzzed.

Contributing

Open issues and merge requests on the GitLab project.

In general, the Wayland contribution guidelines should be followed. In particular, each commit must carry a Signed-off-by tag to denote that the submitter adheres to the Developer Certificate of Origin 1.1. This project follows the freedesktop.org Contributor Covenant.

Building

libdisplay-info is built using Meson. It has no dependencies.

meson setup build/
ninja -C build/

Testing

The low-level EDID library is tested against edid-decode. test/data/ contains a small collection of EDID blobs and diffs between upstream edid-decode and our di-edid-decode clone. Our CI ensures the diffs are up-to-date. A patch should never make the diffs grow larger. To add a new EDID blob or update a diff, use test/edid-decode-diff.sh test/data/<edid>.

Fuzzing

To fuzz libdisplay-info with AFL, the library needs to be instrumented:

CC=afl-gcc meson build/
ninja -C build/
afl-fuzz -i test/data/ -o afl/ build/di-edid-decode