obs-studio/cmake/finders/FindLibva.cmake

146 lines
4.2 KiB
CMake

#[=======================================================================[.rst
FindLibva
---------
FindModule for Libva and associated libraries
.. versionchanged:: 3.0
Updated FindModule to CMake standards
Imported Targets
^^^^^^^^^^^^^^^^
.. versionadded:: 2.0
This module defines the following :prop_tgt:`IMPORTED` targets:
``Libva::va``
Video Acceleration (VA) API for Linux -- runtime
``Libva::drm``
Video Acceleration (VA) API for Linux -- DRM runtime
Result Variables
^^^^^^^^^^^^^^^^
This module sets the following variables:
``Libva_FOUND``
True, if all required components and the core library were found.
``Libva_VERSION``
Detected version of found Libva libraries.
Cache variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``Libva_LIBRARY``
Path to the library component of Libva.
``Libva_INCLUDE_DIR``
Directory containing ``libva.h``.
#]=======================================================================]
# cmake-format: off
# cmake-lint: disable=C0103
# cmake-lint: disable=C0301
# cmake-format: on
include(FindPackageHandleStandardArgs)
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
pkg_search_module(PC_Libva QUIET libva)
pkg_search_module(PC_LibvaDrm QUIET libva-drm)
endif()
find_path(
Libva_INCLUDE_DIR
NAMES va.h
HINTS ${PC_Libva_INCLUDE_DIRS}
PATHS /usr/include/ /usr/local/include
PATH_SUFFIXES va
DOC "Libva include directory")
find_library(
Libva_LIBRARY
NAMES libva va
HINTS ${PC_Libva_LIBRARY_DIRS}
PATHS /usr/lib /usr/local/lib
DOC "Libva location")
find_library(
LibvaDrm_LIBRARY
NAMES libva-drm va-drm
HINTS ${PC_LibvaDrm_LIBRARY_DIRS}
PATHS /usr/lib /usr/local/lib
DOC "Libva-drm location")
if(PC_Libva_VERSION VERSION_GREATER 0)
set(Libva_VERSION ${PC_Libva_VERSION})
elseif(EXISTS "${Libva_INCLUDE_DIR}/va_version.h")
file(STRINGS "${Libva_INCLUDE_DIR}/va_version.h" _VERSION_STRING
REGEX "^.*(MAJOR|MINOR|MICRO)_VERSION[ \t]+[0-9]+[ \t]*$")
string(REGEX REPLACE ".*MAJOR_VERSION[ \t]+([0-9]+).*" "\\1" VERSION_MAJOR "${_VERSION_STRING}")
string(REGEX REPLACE ".*MINOR_VERSION[ \t]+([0-9]+).*" "\\1" VERSION_MINOR "${_VERSION_STRING}")
string(REGEX REPLACE ".*MICRO_VERSION[ \t]+([0-9]+).*" "\\1" VERSION_MICRO "${_VERSION_STRING}")
set(Libva_VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_MICRO}")
else()
if(NOT Libva_FIND_QUIETLY)
message(AUTHOR_WARNING "Failed to find Libva version.")
endif()
set(Libva_VERSION 0.0.0)
endif()
find_package_handle_standard_args(
Libva
REQUIRED_VARS Libva_LIBRARY Libva_INCLUDE_DIR
VERSION_VAR Libva_VERSION REASON_FAILURE_MESSAGE "Ensure that libva is installed on the system.")
mark_as_advanced(Libva_INCLUDE_DIR Libva_LIBRARY)
if(Libva_FOUND)
if(NOT TARGET Libva::va)
if(IS_ABSOLUTE "${Libva_LIBRARY}")
add_library(Libva::va UNKNOWN IMPORTED)
set_property(TARGET Libva::va PROPERTY IMPORTED_LOCATION "${Libva_LIBRARY}")
else()
add_library(Libva::va INTERFACE IMPORTED)
set_property(TARGET Libva::va PROPERTY IMPORTED_LIBNAME "${Libva_LIBRARY}")
endif()
set_target_properties(
Libva::va
PROPERTIES INTERFACE_COMPILE_OPTIONS "${PC_Libva_CFLAGS_OTHER}"
INTERFACE_INCLUDE_DIRECTORIES "${Libva_INCLUDE_DIR}"
VERSION ${Libva_VERSION})
endif()
if(LibvaDrm_LIBRARY)
if(NOT TARGET Libva::drm)
if(IS_ABSOLUTE "${LibvaDrm_LIBRARY}")
add_library(Libva::drm UNKNOWN IMPORTED)
set_property(TARGET Libva::drm PROPERTY IMPORTED_LOCATION "${LibvaDrm_LIBRARY}")
else()
add_library(Libva::drm INTERFACE IMPORTED)
set_property(TARGET Libva::drm PROPERTY IMPORTED_LIBNAME "${LibvaDrm_LIBRARY}")
endif()
set_target_properties(
Libva::drm
PROPERTIES INTERFACE_COMPILE_OPTIONS "${PC_LibvaDrm_CFLAGS_OTHER}"
INTERFACE_INCLUDE_DIRECTORIES "${Libva_INCLUDE_DIR}"
VERSION ${Libva_VERSION})
endif()
endif()
endif()
include(FeatureSummary)
set_package_properties(
Libva PROPERTIES
URL "https://01.org/intel-media-for-linux"
DESCRIPTION
"An implementation for VA-API (Video Acceleration API) - an open-source library which provides access to graphics hardware acceleration capabilities."
)