Primary responsibilities of this class are:
1. Send composition/mode/active state over DRM atomic commit IOCTL
to the kernel
2. Track commit state and keep planes owned by the Pipeline while they
are either displayed or staged for displaying.
3. Keep framebuffers alive while they are in use or staged.
Not much related to composition itself, therefore rename it to
DrmAtomicStateManager and move it to drm folder.
Bump clang-tidy level of DrmAtomicStateManager.c to normal by fixing
minor clang-tidy findings.
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
The following use scenarios are now possible:
1. When no display connected, primary HwcDisplay is created in headless
mode.
2. When user connects first display, it binds to primary slot, replacing
headless HwcDisplay.
3. When user connects another display it binds to the new HwcDisplay
slot, creating new display for the framework.
4. When user disconnects first (Primary) display, drm_hwc detaches
second display and attaches it to the Primary slot. In this case
framework is notified as Primary display resolution updated
(Plugged->Plugged transition). And second display is disconnected
(Plugged->Unplugged transition).
DrmDisplayPipeline is now created on demand (after hotplug event).
HwcDisplay class is now destructed on connector unplug, which will give
us ability to destroy any resource caches (will be required for FB
caching logic).
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
1. DRM event listener doesn't work in this conditions, uevent blocks
the thread and non-blocking select() doesn't make any sense.
Remove DRM event handling for now.
2. UEvent listeren is common for all DrmDevices, therefore put it into
ResourceManager class.
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
IsKMSDev() is a DRM device helper, therefore DrmDevice class
is better home for it.
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
This should elliminate chance of any leaks in the future.
Fix drmModePropertyBlobPtr leak in DrmHwcTwo.cpp.
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
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>
Add the following files to the build:
backend/BackendClient.cpp
backend/Backend.cpp
backend/BackendManager.cpp
backend/BackendRCarDu.cpp
bufferinfo/legacy/BufferInfoImagination.cpp
bufferinfo/legacy/BufferInfoLibdrm.cpp
bufferinfo/legacy/BufferInfoMaliHisi.cpp
bufferinfo/legacy/BufferInfoMaliMediatek.cpp
bufferinfo/legacy/BufferInfoMaliMeson.cpp
bufferinfo/legacy/BufferInfoMinigbm.cpp
compositor/DrmDisplayComposition.cpp
compositor/DrmDisplayCompositor.cpp
compositor/Planner.cpp
drm/DrmGenericImporter.cpp
DrmHwcTwo.cpp
drm/ResourceManager.cpp
drm/VSyncWorker.cpp
tests/worker_test.cpp
utils/autolock.cpp
Files 'bufferinfo/BufferInfoMapperMetadata.cpp' and 'utils/hwcutils.cpp' require
a lot of additional headers, therefore move them out of the scope of this commit.
'utils/gralloc.h' isn't planned to use in pure-linux builds, therefore remove
it from 'utils' and put it into '.ci/android_headers/hardware/'
Fix minor tidy fails.
Fix linux build fails (missing includes) due to differences between libc and
bionic.
Comment-out some sections in 'tests/test_include' which aren't used by drm_hwc
but causing build failures for CI due to missing dependencies.
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Reviewed-by: Matvii Zorin <matvii.zorin@globallogic.com>
Drm hwcomposer project has some code-style inconsistencies.
This is the initial step to unify code-style of the code.
Clang-tidy is a great tool which can not only suggest correct styling,
but also allow predicting the errors in the code and suggest correct
coding approaches to avoid potential weaknesses.
CI was tuned to check clang-tidy recommendation for some part of the
code which is ready ATM (can be built outside AOSP tree).
For this part a limited set of clang-tidy checks has applied (coarse check).
Header files aren't checked at all.
Starting from now new code files must be included into the list that is
checked by almost all clang-tidy checks (fine checklist). New header files
should be also included into this list.
See '.gitlab-ci-clang-tidy-fine.sh'.
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Build android-agnostic code in linux environment.
Enable static code analysis using clang-tidy.
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Motivation:
Platform term meaning used in drm_hwcomposer does not correspond to the
content of the platform directory. Platform directory consists of:
1. Buffer information getters for different gralloc (currently called platform).
2. Composition planner logic (which has flaws and should be reworked into
layer->plane mapping during validation stage logic).
3. DrmGenericImpoter with reference counting logic.
Android-11 IMapper@4 metadata API offers a generic way to access buffer
information which makes other gralloc buffer information getters obsolete.
Legacy getters should be maintained for some time until all known users
will migrate to Mapper@4 API.
Implementation:
1. Split 'PlatformImporter' logic to 'Importer' only and 'Buffer Getter' logic.
a. Remove buffer_handle_t parameter from ImportBuffer(). Instead user should
get BufferInfo using ConvertBoInfo to struct hwc_drm_bo_t, then use it for
ImportBuffer().
b. Move DrmGenericImporter.{cpp/h} into the drm directory.
2. Isolate planner code in single file and move it to compositor directory as
compositor/Planner.{cpp/h}
3. Rename platform definition
a. Rename platform directory to bufferinfo.
b. Rename/move bufferinfo/platorm*.{cpp,h} getters to
bufferinfo/legacy/BufferInfo*.{cpp,h}. Align class names/includes.
4. Split legacy/metadata getters logic.
a. Apply existing bufferinfogetter base class only for legacy getters.
b. Combine legacy/generic gettera under new base class.
c. Create a placeholder for generic(metadata) getter.
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Main goal is to increase readability of file names.
AOSP uses camelcase for files in many projects.
Lets do the same for drm_hwcomposer.
Keep platform/ directory as is, since class names is different from file names.
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Change-Id: I7e992357851c2a86711f4da1241c4d507359e56b
