commit | b70829aaf7218bf135ef8d8dd04120a472a7dbd6 | [log] [tgz] |
---|---|---|
author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Fri Apr 08 16:01:08 2022 +0000 |
committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Fri Apr 08 16:01:08 2022 +0000 |
tree | 6ac83782c853fe09e817de65a2908301672284e0 | |
parent | 89cc1c6fa7f05eec00c68af12208d172fa9b3e41 [diff] | |
parent | b3dedeaa7107178b3f577cc986c91113c92e8edd [diff] |
Snap for 8426163 from b3dedeaa7107178b3f577cc986c91113c92e8edd to mainline-tzdata2-release Change-Id: Iae767d4eed80a5d5770ef67dc173a55600d47ee6
kms++ is a C++11 library for kernel mode setting.
Also included are some simple utilities for KMS and python bindings for kms++.
To build the Python bindings you need to set up the git-submodule for pybind11:
git submodule update --init
And to compile:
$ mkdir build $ cd build $ cmake .. $ make -j4
Directions for cross compiling depend on your environment.
These are for mine with buildroot:
$ mkdir build $ cd build $ cmake -DCMAKE_TOOLCHAIN_FILE=<buildrootpath>/output/host/usr/share/buildroot/toolchainfile.cmake .. $ make -j4
Your environment may provide similar toolchainfile. If not, you can create a toolchainfile of your own, something along these lines:
SET(CMAKE_SYSTEM_NAME Linux) SET(BROOT "<buildroot>/output/") # specify the cross compiler SET(CMAKE_C_COMPILER ${BROOT}/host/usr/bin/arm-buildroot-linux-gnueabihf-gcc) SET(CMAKE_CXX_COMPILER ${BROOT}/host/usr/bin/arm-buildroot-linux-gnueabihf-g++) # where is the target environment SET(CMAKE_FIND_ROOT_PATH ${BROOT}/target ${BROOT}/host) SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
You can use the following cmake flags to control the build. Use -DFLAG=VALUE
to set them.
Option name | Values | Default | Notes |
---|---|---|---|
CMAKE_BUILD_TYPE | Release/Debug | Release | |
BUILD_SHARED_LIBS | ON/OFF | OFF | |
KMSXX_ENABLE_PYTHON | ON/OFF | ON | |
KMSXX_ENABLE_KMSCUBE | ON/OFF | OFF | |
KMSXX_PYTHON_VERSION | python3/python2 | python3;python2 | Name of the python pkgconfig file |
You can use the following runtime environmental variables to control the behavior of kms++.
Variable | Description |
---|---|
KMSXX_DISABLE_UNIVERSAL_PLANES | Set to disable the use of universal planes |
KMSXX_DISABLE_ATOMIC | Set to disable the use of atomic modesetting |
KMSXX_DEVICE | Path to the card device node to use |
KMSXX_DRIVER | Name of the driver to use. The format is either “drvname” or “drvname:idx” |
You can run the python code directly from the build dir by defining PYTHONPATH env variable. For example:
PYTHONPATH=build/py py/tests/hpd.py