monado/cmake/FindOpenHMD.cmake
2019-04-08 19:11:04 +00:00

133 lines
4 KiB
CMake

# Copyright 2019 Collabora, Ltd.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
#
# Original Author:
# 2019 Ryan Pavlik <ryan.pavlik@collabora.com>
#.rst:
# FindOpenHMD
# ---------------
#
# Find the OpenHMD immersive computing interface library.
#
# See http://www.openhmd.net/
#
# Targets
# ^^^^^^^
#
# If successful, the following import target is created.
#
# ``openhmd::openhmd``
#
# Cache variables
# ^^^^^^^^^^^^^^^
#
# The following cache variable may also be set to assist/control the operation of this module:
#
# ``OPENHMD_ROOT_DIR``
# The root to search for OpenHMD.
set(OPENHMD_ROOT_DIR "${OPENHMD_ROOT_DIR}" CACHE PATH "Root to search for OpenHMD")
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
set(_old_prefix_path "${CMAKE_PREFIX_PATH}")
# So pkg-config uses OPENHMD_ROOT_DIR too.
if(OPENHMD_ROOT_DIR)
list(APPEND CMAKE_PREFIX_PATH ${OPENHMD_ROOT_DIR})
endif()
pkg_check_modules(PC_OPENHMD QUIET openhmd)
# Restore
set(CMAKE_PREFIX_PATH "${_old_prefix_path}")
endif()
find_path(OPENHMD_INCLUDE_DIR
NAMES
openhmd.h
PATHS
${OPENHMD_ROOT_DIR}
HINTS
${PC_OPENHMD_INCLUDE_DIRS}
PATH_SUFFIXES
include
openhmd
include/openhmd
)
find_library(OPENHMD_LIBRARY
NAMES
openhmd
PATHS
${OPENHMD_ROOT_DIR}
HINTS
${PC_OPENHMD_LIBRARY_DIRS}
PATH_SUFFIXES
lib
)
find_library(OPENHMD_LIBRT rt)
find_library(OPENHMD_LIBM m)
find_package(Threads QUIET)
set(_ohmd_extra_deps)
set(OPENHMD_HIDAPI_TYPE)
if(PC_OPENHMD_FOUND)
# See if we need a particular hidapi.
list(REMOVE_ITEM PC_OPENHMD_LIBRARIES openhmd)
if(${PC_OPENHMD_LIBRARIES} MATCHES hidapi-libusb)
set(OPENHMD_HIDAPI_TYPE libusb)
find_package(HIDAPI QUIET COMPONENTS libusb)
list(APPEND _ohmd_extra_deps HIDAPI_libusb_FOUND)
elseif(${PC_OPENHMD_LIBRARIES} MATCHES hidapi-hidraw)
set(OPENHMD_HIDAPI_TYPE hidraw)
find_package(HIDAPI QUIET COMPONENTS hidraw)
list(APPEND _ohmd_extra_deps HIDAPI_hidraw_FOUND)
elseif(${PC_OPENHMD_LIBRARIES} MATCHES hidapi)
# Undifferentiated
set(OPENHMD_HIDAPI_TYPE undifferentiated)
find_package(HIDAPI QUIET)
list(APPEND _ohmd_extra_deps HIDAPI_FOUND)
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OpenHMD
REQUIRED_VARS
OPENHMD_INCLUDE_DIR
OPENHMD_LIBRARY
THREADS_FOUND
)
if(OPENHMD_FOUND)
set(OPENHMD_INCLUDE_DIRS ${OPENHMD_INCLUDE_DIR})
set(OPENHMD_LIBRARIES ${OPENHMD_LIBRARY})
if(NOT TARGET OpenHMD::OpenHMD)
add_library(OpenHMD::OpenHMD UNKNOWN IMPORTED)
endif()
set_target_properties(OpenHMD::OpenHMD PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${OPENHMD_INCLUDE_DIR}")
set_target_properties(OpenHMD::OpenHMD PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION ${OPENHMD_LIBRARY})
set_property(TARGET OpenHMD::OpenHMD PROPERTY
IMPORTED_LINK_INTERFACE_LIBRARIES Threads::Threads)
if(${OPENHMD_HIDAPI_TYPE} STREQUAL libusb)
set_property(TARGET OpenHMD::OpenHMD APPEND PROPERTY
IMPORTED_LINK_INTERFACE_LIBRARIES HIDAPI::hidapi-libusb)
list(APPEND OPENHMD_LIBRARIES HIDAPI::hidapi-libusb)
elseif(${OPENHMD_HIDAPI_TYPE} STREQUAL hidraw)
set_property(TARGET OpenHMD::OpenHMD APPEND PROPERTY
IMPORTED_LINK_INTERFACE_LIBRARIES HIDAPI::hidapi-hidraw)
list(APPEND OPENHMD_LIBRARIES HIDAPI::hidapi-hidraw)
elseif(${OPENHMD_HIDAPI_TYPE} STREQUAL undifferentiated)
set_property(TARGET OpenHMD::OpenHMD APPEND PROPERTY
IMPORTED_LINK_INTERFACE_LIBRARIES HIDAPI::hidapi)
list(APPEND OPENHMD_LIBRARIES HIDAPI::hidapi)
endif()
mark_as_advanced(OPENHMD_INCLUDE_DIR OPENHMD_LIBRARY)
endif()
mark_as_advanced(OPENHMD_ROOT_DIR OPENHMD_LIBRT OPENHMD_LIBM)