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# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2011 Blender Foundation.
# - Find OpenImageIO library
# Find the native OpenImageIO includes and library
# This module defines
# OPENIMAGEIO_INCLUDE_DIRS, where to find openimageio.h, Set when
# OPENIMAGEIO_INCLUDE_DIR is found.
# OPENIMAGEIO_LIBRARIES, libraries to link against to use OpenImageIO.
# OPENIMAGEIO_ROOT_DIR, The base directory to search for OpenImageIO.
# This can also be an environment variable.
# OPENIMAGEIO_FOUND, If false, do not try to use OpenImageIO.
# OPENIMAGEIO_PUGIXML_FOUND, Indicates whether OIIO has biltin PuguXML parser.
# OPENIMAGEIO_IDIFF, full path to idiff application if found.
#
# also defined, but not for general use are
# OPENIMAGEIO_LIBRARY, where to find the OpenImageIO library.
# If OPENIMAGEIO_ROOT_DIR was defined in the environment, use it.
IF(NOT OPENIMAGEIO_ROOT_DIR AND NOT $ENV{OPENIMAGEIO_ROOT_DIR} STREQUAL "")
SET(OPENIMAGEIO_ROOT_DIR $ENV{OPENIMAGEIO_ROOT_DIR})
ENDIF()
SET(_openimageio_SEARCH_DIRS
${OPENIMAGEIO_ROOT_DIR}
/opt/lib/oiio
)
FIND_PATH(OPENIMAGEIO_INCLUDE_DIR
NAMES
OpenImageIO/imageio.h
HINTS
${_openimageio_SEARCH_DIRS}
PATH_SUFFIXES
include
)
FIND_LIBRARY(OPENIMAGEIO_LIBRARY
NAMES
OpenImageIO
HINTS
${_openimageio_SEARCH_DIRS}
PATH_SUFFIXES
lib64 lib
)
set(_openimageio_LIBRARIES ${OPENIMAGEIO_LIBRARY})
FIND_FILE(OPENIMAGEIO_IDIFF
NAMES
idiff
HINTS
${_openimageio_SEARCH_DIRS}
PATH_SUFFIXES
bin
)
# Additionally find util library if needed. In old versions this library was
# included in libOpenImageIO and linking to both would duplicate symbols. In
# new versions we need to link to both.
FIND_FILE(_openimageio_export
NAMES
export.h
PATHS
${OPENIMAGEIO_INCLUDE_DIR}/OpenImageIO
NO_DEFAULT_PATH
)
# Use existence of OIIO_UTIL_API to check if it's a separate lib.
FILE(STRINGS "${_openimageio_export}" _openimageio_util_define
REGEX "^[ \t]*#[ \t]*define[ \t]+OIIO_UTIL_API.*$")
IF(_openimageio_util_define)
FIND_LIBRARY(OPENIMAGEIO_UTIL_LIBRARY
NAMES
OpenImageIO_Util
HINTS
${_openimageio_SEARCH_DIRS}
PATH_SUFFIXES
lib64 lib
)
LIST(APPEND _openimageio_LIBRARIES ${OPENIMAGEIO_UTIL_LIBRARY})
ENDIF()
# In cmake version 3.21 and up, we can instead use the NO_CACHE option for
# FIND_FILE so we don't need to clear it from the cache here.
UNSET(_openimageio_export CACHE)
UNSET(_openimageio_util_define)
# handle the QUIETLY and REQUIRED arguments and set OPENIMAGEIO_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenImageIO DEFAULT_MSG
_openimageio_LIBRARIES OPENIMAGEIO_INCLUDE_DIR)
IF(OPENIMAGEIO_FOUND)
SET(OPENIMAGEIO_LIBRARIES ${_openimageio_LIBRARIES})
SET(OPENIMAGEIO_INCLUDE_DIRS ${OPENIMAGEIO_INCLUDE_DIR})
IF(EXISTS ${OPENIMAGEIO_INCLUDE_DIR}/OpenImageIO/pugixml.hpp)
SET(OPENIMAGEIO_PUGIXML_FOUND TRUE)
ELSE()
SET(OPENIMAGEIO_PUGIXML_FOUND FALSE)
ENDIF()
ELSE()
SET(OPENIMAGEIO_PUGIXML_FOUND FALSE)
ENDIF()
MARK_AS_ADVANCED(
OPENIMAGEIO_INCLUDE_DIR
OPENIMAGEIO_LIBRARY
OPENIMAGEIO_UTIL_LIBRARY
OPENIMAGEIO_IDIFF
)
UNSET(_openimageio_SEARCH_DIRS)
UNSET(_openimageio_LIBRARIES)
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