forked from bartvdbraak/blender
134 lines
4.3 KiB
CMake
134 lines
4.3 KiB
CMake
# - Find OpenEXR library
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# Find the native OpenEXR includes and library
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# This module defines
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# OPENEXR_INCLUDE_DIRS, where to find ImfXdr.h, etc. Set when
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# OPENEXR_INCLUDE_DIR is found.
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# OPENEXR_LIBRARIES, libraries to link against to use OpenEXR.
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# OPENEXR_ROOT_DIR, The base directory to search for OpenEXR.
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# This can also be an environment variable.
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# OPENEXR_FOUND, If false, do not try to use OpenEXR.
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#
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# For individual library access these advanced settings are available
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# OPENEXR_HALF_LIBRARY, Path to Half library
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# OPENEXR_IEX_LIBRARY, Path to Half library
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# OPENEXR_ILMIMF_LIBRARY, Path to Ilmimf library
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# OPENEXR_ILMTHREAD_LIBRARY, Path to IlmThread library
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# OPENEXR_IMATH_LIBRARY, Path to Imath library
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#
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# also defined, but not for general use are
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# OPENEXR_LIBRARY, where to find the OpenEXR library.
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#=============================================================================
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# Copyright 2011 Blender Foundation.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# If OPENEXR_ROOT_DIR was defined in the environment, use it.
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IF(NOT OPENEXR_ROOT_DIR AND NOT $ENV{OPENEXR_ROOT_DIR} STREQUAL "")
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SET(OPENEXR_ROOT_DIR $ENV{OPENEXR_ROOT_DIR})
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ENDIF()
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SET(_openexr_FIND_COMPONENTS
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Half
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Iex
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IlmImf
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IlmThread
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Imath
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)
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SET(_openexr_SEARCH_DIRS
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${OPENEXR_ROOT_DIR}
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/usr/local
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/sw # Fink
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/opt/local # DarwinPorts
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/opt/csw # Blastwave
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)
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FIND_PATH(OPENEXR_INCLUDE_DIR
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NAMES
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OpenEXR/ImfXdr.h
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HINTS
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${_openexr_SEARCH_DIRS}
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PATH_SUFFIXES
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include
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)
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# If the headers were found, get the version from config file, if not already set.
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IF(OPENEXR_INCLUDE_DIR)
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IF(NOT OPENEXR_VERSION)
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FIND_FILE(_openexr_CONFIG
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NAMES
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OpenEXRConfig.h
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PATHS
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"${OPENEXR_INCLUDE_DIR}"
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"${OPENEXR_INCLUDE_DIR}/OpenEXR"
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NO_DEFAULT_PATH
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)
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IF(_openexr_CONFIG)
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FILE(STRINGS "${_openexr_CONFIG}" OPENEXR_BUILD_SPECIFICATION
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REGEX "^[ \t]*#define[ \t]+OPENEXR_VERSION_STRING[ \t]+\"[.0-9]+\".*$")
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ELSE()
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MESSAGE(WARNING "Could not find \"OpenEXRConfig.h\" in \"${OPENEXR_INCLUDE_DIR}\"")
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ENDIF()
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IF(OPENEXR_BUILD_SPECIFICATION)
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MESSAGE(STATUS "${OPENEXR_BUILD_SPECIFICATION}")
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STRING(REGEX REPLACE ".*#define[ \t]+OPENEXR_VERSION_STRING[ \t]+\"([.0-9]+)\".*"
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"\\1" XYZ ${OPENEXR_BUILD_SPECIFICATION})
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SET("OPENEXR_VERSION" ${XYZ} CACHE STRING "Version of OpenEXR lib")
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ELSE()
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# Old versions (before 2.0?) do not have any version string, just assuming 2.0 should be fine though.
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MESSAGE(WARNING "Could not determine ILMBase library version, assuming 2.0.")
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SET("OPENEXR_VERSION" "2.0" CACHE STRING "Version of OpenEXR lib")
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ENDIF()
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UNSET(_openexr_CONFIG CACHE)
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ENDIF()
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ENDIF()
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STRING(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _openexr_libs_ver ${OPENEXR_VERSION})
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SET(_openexr_LIBRARIES)
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FOREACH(COMPONENT ${_openexr_FIND_COMPONENTS})
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STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
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FIND_LIBRARY(OPENEXR_${UPPERCOMPONENT}_LIBRARY
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NAMES
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${COMPONENT}-${_openexr_libs_ver} ${COMPONENT}
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HINTS
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${_openexr_SEARCH_DIRS}
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PATH_SUFFIXES
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lib64 lib
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)
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LIST(APPEND _openexr_LIBRARIES "${OPENEXR_${UPPERCOMPONENT}_LIBRARY}")
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ENDFOREACH()
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UNSET(_openexr_libs_ver)
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# handle the QUIETLY and REQUIRED arguments and set OPENEXR_FOUND to TRUE if
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# all listed variables are TRUE
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenEXR DEFAULT_MSG
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_openexr_LIBRARIES OPENEXR_INCLUDE_DIR)
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IF(OPENEXR_FOUND)
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SET(OPENEXR_LIBRARIES ${_openexr_LIBRARIES})
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# Both include paths are needed because of dummy OSL headers mixing #include <OpenEXR/foo.h> and #include <foo.h> :(
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SET(OPENEXR_INCLUDE_DIRS ${OPENEXR_INCLUDE_DIR} ${OPENEXR_INCLUDE_DIR}/OpenEXR)
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ENDIF()
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MARK_AS_ADVANCED(OPENEXR_INCLUDE_DIR)
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FOREACH(COMPONENT ${_openexr_FIND_COMPONENTS})
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STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
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MARK_AS_ADVANCED(OPENEXR_${UPPERCOMPONENT}_LIBRARY)
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ENDFOREACH()
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