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gerrit-public.fairphone.software / platform / external / libkmsxx / c6726616b168d898b522f95d18544cedda202eba
commitc6726616b168d898b522f95d18544cedda202eba[log] [tgz]
authorTomi Valkeinen <tomi.valkeinen@ti.com>Fri Apr 22 16:13:59 2016 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>Fri Apr 22 19:55:59 2016 +0300
tree70eace688d52d7a4980ce565dcf4c20850b3c757
parent290e32736bc92569ad5b4626654505c459591326 [diff]
kmscube: check errors
1 file changed
tree: 70eace688d52d7a4980ce565dcf4c20850b3c757
  1. kmscube/
  2. libkms++/
  3. libkmstest/
  4. py/
  5. tests/
  6. .gitignore
  7. CMakeLists.txt
  8. LICENSE
  9. README.md
  10. TODO
README.md

libkms++ - C++ library for kernel mode setting

libkms++ is a C++11 library for kernel mode setting.

Also included are simple test tools for KMS and python wrapper for libkms++.

Test tools

  • kmsprint - print information about DRM objects
  • testpat - set modes and show test pattern on crtcs/planes
  • kmsview - view raw images
  • db - simple double-buffering test
  • kmscube - rotating 3D cube on crtcs/planes

Dependencies:

  • libdrm
  • SWIG 3.x (for python bindings)
  • Python 3.x (for python bindings)

Build instructions:

$ mkdir build
$ cd build
$ cmake ..
$ make -j4

Cross compiling instructions:

Directions for cross compiling depend on your environment. These are for mine (buildroot):

As above, but specify -DCMAKE_TOOLCHAIN_FILE=<path>/your-toolchain.cmake for cmake, where your-toolchain.cmake is something similar to:

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)

Build options

You can use the following cmake flags to control the build. Use -DFLAG=VALUE to set them.

Option nameValuesDefaultNotes
CMAKE_BUILD_TYPERelease/DebugRelease
LIBKMS_ENABLE_PYTHONON/OFFON
LIBKMS_ENABLE_KMSCUBE ON/OFFOFF
LIBKMS_ENABLE_LTO  ON/OFFOFFLink Time Optimization

Env variables

You can use the following runtime environmental variables to control the behavior of libkms.

VariableDescription
LIBKMSXX_DISABLE_UNIVERSAL_PLANESSet to disable the use of universal planes
LIBKMSXX_DISABLE_ATOMICSet to disable the use of atomic modesetting