drm_hwcomposer: Configuring Composer HAL to use sequential IDs

Implement Google guidelines from [1]

1. The supported display config IDs are:

    id=1, 1080x1920 60hz
    id=2, 1080x1920 50hz

2. When a change of display configs is processed, the next set of config IDs
   are assigned starting from the next unused integer, shown as follows:

    id=3, 2160x3840 60hz
    id=4, 2160x3840 50hz
    id=5, 1080x1920 60hz
    id=6, 1080x1920 50hz

+ Don't update modes in GetDisplayConfigs() . Modes is now updated at init or
after every hotplug event.

[1]: https://source.android.com/devices/graphics/hotplug#configuring-composer-hal-sequential-ids
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
3 files changed
tree: 0f5179f58cbc99942756fd571dc01b17a3338667
  1. .ci/
  2. backend/
  3. bufferinfo/
  4. compositor/
  5. drm/
  6. hwc2_device/
  7. include/
  8. tests/
  9. utils/
  10. .clang-format
  11. .clang-tidy
  12. .gitlab-ci.yml
  13. Android.bp
  14. build_deploy.sh
  15. MODULE_LICENSE_APACHE2
  16. NOTICE
  17. presubmit.sh
  18. README.md
README.md

drm_hwcomposer

Patches to drm_hwcomposer are very much welcome, we really want this to be the universal HW composer implementation for Android and similar platforms. So please bring on porting patches, bugfixes, improvements for documentation and new features.

A short list of contribution guidelines:

  • Submit changes via gitlab merge requests on gitlab.freedesktop.org.

  • drm_hwcomposer is Apache 2.0 Licensed and we require contributions to follow the developer's certificate of origin: http://developercertificate.org/.

  • When submitting new code please follow the naming conventions documented in the generated documentation. Also please make full use of all the helpers and convenience macros provided by drm_hwcomposer. The below command can help you with formatting of your patches:

    git diff | clang-format-diff-13 -p 1 -style=file
    
  • Hardware specific changes should be tested on relevant platforms before committing.

If you need inspiration, please checkout our TODO issues.

Happy hacking!