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# Copyright 2019-2021 Collabora, Ltd.
#
# SPDX-License-Identifier: BSL-1.0
#
# 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:
# 2019-2021 Rylie Pavlik <rylie.pavlik@collabora.com> <rylie@ryliepavlik.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
"${OPENHMD_ROOT_DIR}"
CACHE PATH "Root to search for OpenHMD")
if(NOT ANDROID)
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
set(_old_prefix_path "${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()
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} ${OPENHMD_ROOT_DIR}/build
HINTS ${PC_OPENHMD_LIBRARY_DIRS}
PATH_SUFFIXES lib)
find_library(OPENHMD_LIBRT rt)
find_library(OPENHMD_LIBM m)
find_package(Threads QUIET)
set(_ohmd_extra_deps)
set(OPENHMD_HIDAPI_TYPE)
if(OPENHMD_LIBRARY AND "${OPENHMD_LIBRARY}" MATCHES
"${CMAKE_STATIC_LIBRARY_SUFFIX}")
# Looks like a static library
if(PC_OPENHMD_FOUND)
# See if we need a particular hidapi.
list(REMOVE_ITEM PC_OPENHMD_LIBRARIES openhmd)
if("${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("${PC_OPENHMD_LIBRARIES}" MATCHES hidapi-hidraw)
set(OPENHMD_HIDAPI_TYPE hidraw)
find_package(HIDAPI QUIET COMPONENTS hidraw)
list(APPEND _ohmd_extra_deps HIDAPI_hidraw_FOUND)
endif()
endif()
if(NOT PC_OPENHMD_FOUND OR NOT OPENHMD_HIDAPI_TYPE)
# Undifferentiated
set(OPENHMD_HIDAPI_TYPE undifferentiated)
find_package(HIDAPI QUIET)
list(APPEND _ohmd_extra_deps HIDAPI_FOUND)
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
OpenHMD REQUIRED_VARS OPENHMD_INCLUDE_DIR OPENHMD_LIBRARY THREADS_FOUND)
if(OPENHMD_FOUND)
set(OPENHMD_INCLUDE_DIRS "${OPENHMD_INCLUDE_DIR}")
set(OPENHMD_LIBRARIES "${OPENHMD_LIBRARY}")
if(NOT TARGET OpenHMD::OpenHMD)
add_library(OpenHMD::OpenHMD UNKNOWN IMPORTED)
endif()
set_target_properties(
OpenHMD::OpenHMD
PROPERTIES IMPORTED_LOCATION "${OPENHMD_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${OPENHMD_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LINK_INTERFACE_LIBRARIES Threads::Threads)
if("${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)
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