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# SPDX-FileCopyrightText: 2013-2014 Alex Merry <alex.merry@kdemail.net>
# SPDX-FileCopyrightText: 2006 Alexander Neundorf <neundorf@kde.org>
#
# SPDX-License-Identifier: BSD-3-Clause
#[=======================================================================[.rst:
FindOpenEXR
-----------
Try to find the OpenEXR libraries.
This will define the following variables:
``OpenEXR_FOUND``
True if OpenEXR is available
``OpenEXR_LIBRARIES``
Link to these to use OpenEXR
``OpenEXR_INCLUDE_DIRS``
Include directory for OpenEXR
``OpenEXR_DEFINITIONS``
Compiler flags required to link against OpenEXR
and the following imported targets:
``OpenEXR::IlmImf``
The OpenEXR core library
In general we recommend using the imported target, as it is easier to use.
Bear in mind, however, that if the target is in the link interface of an
exported library, it must be made available by the package config file.
Since pre-1.0.0.
#]=======================================================================]
include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpersStub.cmake)
ecm_find_package_version_check(OpenEXR)
# use pkg-config to get the directories and then use these values
# in the FIND_PATH() and FIND_LIBRARY() calls
find_package(PkgConfig QUIET)
pkg_check_modules(PC_OpenEXR QUIET OpenEXR)
set(OpenEXR_DEFINITIONS ${PC_OpenEXR_CFLAGS_OTHER})
find_path(OpenEXR_INCLUDE_DIR ImfRgbaFile.h
PATHS
${PC_OpenEXR_INCLUDEDIR}
${PC_OpenEXR_INCLUDE_DIRS}
PATH_SUFFIXES OpenEXR
)
# Required libraries for OpenEXR
find_library(OpenEXR_HALF_LIBRARY NAMES Half
PATHS
${PC_OpenEXR_LIBDIR}
${PC_OpenEXR_LIBRARY_DIRS}
)
find_library(OpenEXR_IEX_LIBRARY NAMES Iex
PATHS
${PC_OpenEXR_LIBDIR}
${PC_OpenEXR_LIBRARY_DIRS}
)
find_library(OpenEXR_IMATH_LIBRARY NAMES Imath
PATHS
${PC_OpenEXR_LIBDIR}
${PC_OpenEXR_LIBRARY_DIRS}
)
find_library(OpenEXR_ILMTHREAD_LIBRARY NAMES IlmThread
PATHS
${PC_OpenEXR_LIBDIR}
${PC_OpenEXR_LIBRARY_DIRS}
)
# This is the actual OpenEXR library
find_library(OpenEXR_ILMIMF_LIBRARY NAMES IlmImf
PATHS
${PC_OpenEXR_LIBDIR}
${PC_OpenEXR_LIBRARY_DIRS}
)
set(_OpenEXR_deps
${OpenEXR_HALF_LIBRARY}
${OpenEXR_IEX_LIBRARY}
${OpenEXR_IMATH_LIBRARY}
${OpenEXR_ILMTHREAD_LIBRARY})
set(OpenEXR_LIBRARIES
${_OpenEXR_deps}
${OpenEXR_ILMIMF_LIBRARY})
if (OpenEXR_INCLUDE_DIR AND EXISTS "${OpenEXR_INCLUDE_DIR}/OpenEXRConfig.h")
file(STRINGS "${OpenEXR_INCLUDE_DIR}/OpenEXRConfig.h" openexr_version_str
REGEX "^#define[\t ]+OPENEXR_VERSION_STRING[\t ]+\"[^\"]*\"")
string(REGEX REPLACE "^#define[\t ]+OPENEXR_VERSION_STRING[\t ]+\"([^\"]*).*"
"\\1" OpenEXR_VERSION_STRING "${openexr_version_str}")
unset(openexr_version_str)
endif ()
include(FindPackageHandleStandardArgs)
# find_package_handle_standard_args reports the value of the first variable
# on success, so make sure this is the actual OpenEXR library
find_package_handle_standard_args(OpenEXR
FOUND_VAR OpenEXR_FOUND
REQUIRED_VARS
OpenEXR_ILMIMF_LIBRARY
OpenEXR_HALF_LIBRARY
OpenEXR_IEX_LIBRARY
OpenEXR_IMATH_LIBRARY
OpenEXR_ILMTHREAD_LIBRARY
OpenEXR_INCLUDE_DIR
VERSION_VAR OpenEXR_VERSION_STRING)
set(OpenEXR_INCLUDE_DIRS ${OpenEXR_INCLUDE_DIR})
include(FeatureSummary)
set_package_properties(OpenEXR PROPERTIES
URL https://www.openexr.com/
DESCRIPTION "A library for handling OpenEXR high dynamic-range image files")
mark_as_advanced(
OpenEXR_INCLUDE_DIR
OpenEXR_LIBRARIES
OpenEXR_DEFINITIONS
OpenEXR_ILMIMF_LIBRARY
OpenEXR_ILMTHREAD_LIBRARY
OpenEXR_IMATH_LIBRARY
OpenEXR_IEX_LIBRARY
OpenEXR_HALF_LIBRARY
)
if(OpenEXR_FOUND AND NOT TARGET OpenEXR::IlmImf)
add_library(OpenEXR::IlmImf UNKNOWN IMPORTED)
set_target_properties(OpenEXR::IlmImf PROPERTIES
IMPORTED_LOCATION "${OpenEXR_ILMIMF_LIBRARY}"
INTERFACE_COMPILE_OPTIONS "${OpenEXR_DEFINITIONS}"
INTERFACE_INCLUDE_DIRECTORIES "${OpenEXR_INCLUDE_DIR}"
INTERFACE_LINK_LIBRARIES "${_OpenEXR_deps}"
)
endif()
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