| commit | df686aa85d88e03548dbed760bf4a0814049f41c | [log] [tgz] |
|---|---|---|
| author | Lucas Berthou <berlu@google.com> | Wed Aug 28 16:15:38 2024 +0000 |
| committer | Lucas Berthou <berlu@google.com> | Thu Aug 29 20:36:30 2024 +0000 |
| tree | ce9955cddc4d9fb24e81790f85c624e69c9ce353 | |
| parent | 93443188b71848db6519cfc817d87e17c553614e [diff] |
drm_hwcomposer: work around for bad edid display size and dpi. drm-hwc computes the dpi by dividing the resolution by the size of the panel. That should technically be correct at full resolution, however the panel size comes from the edid and in practice display manufacturers are not the most reliable when populating edid. This is leads to some wildly inaccurate dpi value that can change the aspect ratio of the screen from 16:9 to 4:3. Since edid are unreliable one simple work around is to only use one dpi value, the width is the most likely to be correct as it is the less likely to have bezels. Change-Id: I8fce08dc137129b5176050bb2c61055571f1cca8
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!