drm_hwcomposer: Calculate vsync period consistently

Calculating the vsync period can yield different results depending on
floating point precision and ordering of operations.

Calcuate the vsync period in one place for consistency.

Change-Id: I968e4976ec5d546f66ffe3e0f7dd404cd934a60c
Signed-off-by: Drew Davenport <ddavenport@google.com>
3 files changed
tree: 6f5c26e3598210704cdbc0959eccfc4ea0105e82
  1. .ci/
  2. backend/
  3. bufferinfo/
  4. compositor/
  5. drm/
  6. hwc2_device/
  7. hwc3/
  8. tests/
  9. utils/
  10. .clang-format
  11. .clang-tidy
  12. .gitlab-ci.yml
  13. Android.bp
  14. Makefile
  15. meson.build
  16. MODULE_LICENSE_APACHE2
  17. NOTICE
  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-15 -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!