lineage-rockchip/android_external_drm_hwcomposer
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Roman Stratiienko 8666dc9c58 drm_hwcomposer: Tracking of the DRM FB objects using RAII 
DRM framebuffer objects must be kept registered in DRM/KMS
while used for scanning-out (After atomic commit applied
for processing by display controller and until next atomic
commit is applied for processing).

Existing logic for tracking current state is overcomplicated and
needs to be redesigned. Also further developing of drm_hwc will
require migration to asynchronous atomic commit, so additional
asynchronous FB cleanup logic must be created.
Buffer caching logic will also benefit from this.

With the RAII all further changes will be less painful and more robust.

By this commit I also renamed DrmGenericImporter to DrmFbImporter:
'Fb' word is present in most of existing composers (android and linux)
so it will be easier to compare different implementations.

Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
2021-05-19 19:31:29 +03:00
.ci drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
backend drm_hwcomposer: Fix regression after composition creation cleanup 2021-04-27 09:29:23 +03:00
bufferinfo drm_hwcomposer: CI: Increase coverage 2021-04-06 12:12:17 +03:00
compositor drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
drm drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
include drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
tests drm_hwcomposer: CI: Increase coverage 2021-04-06 12:12:17 +03:00
utils drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
.clang-format drm_hwcomposer: Update clang-format to 5.0 2018-08-27 13:38:45 -04:00
.clang-tidy drm_hwcomposer: CI: Initial build and clang-tidy checks 2021-03-03 12:14:13 +02:00
.gitlab-ci.yml drm_hwcomposer: CI: Increase coverage 2021-04-06 12:12:17 +03:00
Android.bp drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
DrmHwcTwo.cpp drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
DrmHwcTwo.h drm_hwcomposer: Tracking of the DRM FB objects using RAII 2021-05-19 19:31:29 +03:00
MODULE_LICENSE_APACHE2 drm_hwcomposer: License NOTICE file and metadata from AOSP 2018-05-04 10:46:10 -07:00
NOTICE drm_hwcomposer: License NOTICE file and metadata from AOSP 2018-05-04 10:46:10 -07:00
presubmit.sh drm_hwcomposer: CI: Initial build and clang-tidy checks 2021-03-03 12:14:13 +02:00
README.md drm_hwcomposer: update README for clang-format-diff-11 and touch up formatting 2021-05-09 09:01:40 -07:00

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-11 -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!