cmake: use improved FindOpenEXR module

This commit is contained in:
itsmattkc
2020-06-26 00:21:12 +10:00
parent e8c8fedcdb
commit 7523db099b
2 changed files with 144 additions and 88 deletions
+1 -1
View File
@@ -125,7 +125,7 @@ target_include_directories(
${FFMPEG_INCLUDE_DIRS}
${OCIO_INCLUDE_DIRS}
${OIIO_INCLUDE_DIRS}
${OPENEXR_INCLUDE_DIRS}
${OPENEXR_INCLUDE_DIR}
)
# Set link libraries
+143 -87
View File
@@ -1,99 +1,155 @@
# Module to find OpenEXR.
#
# Copyright 2016 Pixar
# This module will set
# OPENEXR_FOUND true, if found
# OPENEXR_INCLUDES directory where headers are found
# OPENEXR_LIBRARIES libraries for OpenEXR + IlmBase
# ILMBASE_LIBRARIES libraries just IlmBase
# OPENEXR_VERSION OpenEXR version (accurate for >= 2.0.0,
# otherwise will just guess 1.6.1)
#
# Licensed under the Apache License, Version 2.0 (the "Apache License")
# with the following modification; you may not use this file except in
# compliance with the Apache License and the following modification to it:
# Section 6. Trademarks. is deleted and replaced with:
#
# 6. Trademarks. This License does not grant permission to use the trade
# names, trademarks, service marks, or product names of the Licensor
# and its affiliates, except as required to comply with Section 4(c) of
# the License and to reproduce the content of the NOTICE file.
#
# You may obtain a copy of the Apache License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the Apache License with the above modification is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the Apache License for the specific
# language governing permissions and limitations under the Apache License.
#
find_path(OPENEXR_INCLUDE_DIR
OpenEXR/half.h
HINTS
"${OPENEXR_LOCATION}"
"$ENV{OPENEXR_LOCATION}"
PATH_SUFFIXES
include/
DOC
"OpenEXR headers path"
)
# Other standard issue macros
include (FindPackageHandleStandardArgs)
include (SelectLibraryConfigurations)
if(OPENEXR_INCLUDE_DIR)
set(openexr_config_file "${OPENEXR_INCLUDE_DIR}/OpenEXR/OpenEXRConfig.h")
if(EXISTS ${openexr_config_file})
file(STRINGS
${openexr_config_file}
TMP
REGEX "#define OPENEXR_VERSION_STRING.*$")
string(REGEX MATCHALL "[0-9.]+" OPENEXR_VERSION "${TMP}")
find_package (ZLIB REQUIRED)
file(STRINGS
${openexr_config_file}
TMP
REGEX "#define OPENEXR_VERSION_MAJOR.*$")
string(REGEX MATCHALL "[0-9]" OPENEXR_MAJOR_VERSION "${TMP}")
# Link with pthreads if required
find_package (Threads)
if (CMAKE_USE_PTHREADS_INIT)
set (ILMBASE_PTHREADS ${CMAKE_THREAD_LIBS_INIT})
endif ()
file(STRINGS
${openexr_config_file}
TMP
REGEX "#define OPENEXR_VERSION_MINOR.*$")
string(REGEX MATCHALL "[0-9]" OPENEXR_MINOR_VERSION "${TMP}")
endif()
endif()
# Attempt to find OpenEXR with pkgconfig
find_package(PkgConfig)
if (PKG_CONFIG_FOUND)
if (NOT Ilmbase_ROOT AND NOT ILMBASE_ROOT
AND NOT DEFINED ENV{Ilmbase_ROOT} AND NOT DEFINED ENV{ILMBASE_ROOT})
pkg_check_modules(_ILMBASE QUIET IlmBase>=2.0.0)
endif ()
if (NOT OpenEXR_ROOT AND NOT OPENEXR_ROOT
AND NOT DEFINED ENV{OpenEXR_ROOT} AND NOT DEFINED ENV{OPENEXR_ROOT})
pkg_check_modules(_OPENEXR QUIET OpenEXR>=2.0.0)
endif ()
endif (PKG_CONFIG_FOUND)
foreach(OPENEXR_LIB
Half
Iex
Imath
IlmImf
IlmThread
# List of likely places to find the headers -- note priority override of
# ${OPENEXR_ROOT}/include.
# ILMBASE is needed in case ilmbase an openexr are installed in separate
# directories, like NixOS does
set (GENERIC_INCLUDE_PATHS
${OPENEXR_ROOT}/include
$ENV{OPENEXR_ROOT}/include
${ILMBASE_ROOT}/include
$ENV{ILMBASE_ROOT}/include
${_ILMBASE_INCLUDEDIR}
${_OPENEXR_INCLUDEDIR}
/usr/local/include
/usr/include
/usr/include/${CMAKE_LIBRARY_ARCHITECTURE}
/sw/include
/opt/local/include )
# Find the include file locations.
find_path (ILMBASE_INCLUDE_PATH OpenEXR/IlmBaseConfig.h
HINTS ${ILMBASE_INCLUDE_DIR} ${OPENEXR_INCLUDE_DIR}
${GENERIC_INCLUDE_PATHS} )
find_path (OPENEXR_INCLUDE_PATH OpenEXR/OpenEXRConfig.h
HINTS ${OPENEXR_INCLUDE_DIR}
${GENERIC_INCLUDE_PATHS} )
# Try to figure out version number
if (DEFINED _OPENEXR_VERSION AND NOT "${_OPENEXR_VERSION}" STREQUAL "")
set (OPENEXR_VERSION "${_OPENEXR_VERSION}")
string (REGEX REPLACE "([0-9]+)\\.[0-9\\.]+" "\\1" OPENEXR_VERSION_MAJOR "${_OPENEXR_VERSION}")
string (REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" OPENEXR_VERSION_MINOR "${_OPENEXR_VERSION}")
elseif (EXISTS "${OPENEXR_INCLUDE_PATH}/OpenEXR/ImfMultiPartInputFile.h")
# Must be at least 2.0
file(STRINGS "${OPENEXR_INCLUDE_PATH}/OpenEXR/OpenEXRConfig.h" TMP REGEX "^#define OPENEXR_VERSION_STRING .*$")
string (REGEX MATCHALL "[0-9]+[.0-9]+" OPENEXR_VERSION ${TMP})
file(STRINGS "${OPENEXR_INCLUDE_PATH}/OpenEXR/OpenEXRConfig.h" TMP REGEX "^#define OPENEXR_VERSION_MAJOR .*$")
string (REGEX MATCHALL "[0-9]+" OPENEXR_VERSION_MAJOR ${TMP})
file(STRINGS "${OPENEXR_INCLUDE_PATH}/OpenEXR/OpenEXRConfig.h" TMP REGEX "^#define OPENEXR_VERSION_MINOR .*$")
string (REGEX MATCHALL "[0-9]+" OPENEXR_VERSION_MINOR ${TMP})
else ()
# Assume an old one, predates 2.x that had versions
set (OPENEXR_VERSION 1.6.1)
set (OPENEXR_MAJOR 1)
set (OPENEXR_MINOR 6)
endif ()
# List of likely places to find the libraries -- note priority override of
# ${OPENEXR_ROOT}/lib.
set (GENERIC_LIBRARY_PATHS
${OPENEXR_ROOT}/lib
${ILMBASE_ROOT}/lib
${OPENEXR_INCLUDE_PATH}/../lib
${ILMBASE_INCLUDE_PATH}/../lib
${_ILMBASE_LIBDIR}
${_OPENEXR_LIBDIR}
/usr/local/lib
/usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE}
/usr/lib
/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
/sw/lib
/opt/local/lib
$ENV{PROGRAM_FILES}/OpenEXR/lib/static )
# message (STATUS "Generic lib paths: ${GENERIC_LIBRARY_PATHS}")
# Handle request for static libs by altering CMAKE_FIND_LIBRARY_SUFFIXES.
# We will restore it at the end of this file.
set (_openexr_orig_suffixes ${CMAKE_FIND_LIBRARY_SUFFIXES})
if (OpenEXR_USE_STATIC_LIBS)
if (WIN32)
set (CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
else ()
set (CMAKE_FIND_LIBRARY_SUFFIXES .a)
endif ()
endif ()
# Look for the libraries themselves, for all the components.
# This is complicated because the OpenEXR libraries may or may not be
# built with version numbers embedded.
set (_openexr_components IlmThread IlmImf Imath Iex Half)
foreach (COMPONENT ${_openexr_components})
string (TOUPPER ${COMPONENT} UPPERCOMPONENT)
# First try with the version embedded
find_library (OPENEXR_${UPPERCOMPONENT}_LIBRARY
NAMES ${COMPONENT}-${OPENEXR_VERSION_MAJOR}_${OPENEXR_VERSION_MINOR}
${COMPONENT}
${COMPONENT}-${OPENEXR_VERSION_MAJOR}_${OPENEXR_VERSION_MINOR}_d
${COMPONENT}_d
HINTS ${OPENEXR_LIBRARY_DIR} $ENV{OPENEXR_LIBRARY_DIR}
${GENERIC_LIBRARY_PATHS} )
endforeach ()
find_package_handle_standard_args (OpenEXR
REQUIRED_VARS ILMBASE_INCLUDE_PATH OPENEXR_INCLUDE_PATH
OPENEXR_IMATH_LIBRARY OPENEXR_ILMIMF_LIBRARY
OPENEXR_IEX_LIBRARY OPENEXR_HALF_LIBRARY
VERSION_VAR OPENEXR_VERSION
)
# OpenEXR libraries may be suffixed with the version number, so we search
# using both versioned and unversioned names.
find_library(OPENEXR_${OPENEXR_LIB}_LIBRARY
NAMES
${OPENEXR_LIB}-${OPENEXR_MAJOR_VERSION}_${OPENEXR_MINOR_VERSION}
${OPENEXR_LIB}
HINTS
"${OPENEXR_LOCATION}"
"$ENV{OPENEXR_LOCATION}"
PATH_SUFFIXES
lib/
DOC
"OPENEXR's ${OPENEXR_LIB} library path"
)
if (OPENEXR_FOUND)
set (ILMBASE_FOUND TRUE)
set (ILMBASE_INCLUDES ${ILMBASE_INCLUDE_PATH})
set (OPENEXR_INCLUDES ${OPENEXR_INCLUDE_PATH})
set (ILMBASE_INCLUDE_DIR ${ILMBASE_INCLUDE_PATH})
set (OPENEXR_INCLUDE_DIR ${OPENEXR_INCLUDE_PATH})
set (ILMBASE_LIBRARIES ${OPENEXR_IMATH_LIBRARY} ${OPENEXR_IEX_LIBRARY} ${OPENEXR_HALF_LIBRARY} ${OPENEXR_ILMTHREAD_LIBRARY} ${ILMBASE_PTHREADS} CACHE STRING "The libraries needed to use IlmBase")
set (OPENEXR_LIBRARIES ${OPENEXR_ILMIMF_LIBRARY} ${ILMBASE_LIBRARIES} ${ZLIB_LIBRARIES} CACHE STRING "The libraries needed to use OpenEXR")
endif ()
if(OPENEXR_${OPENEXR_LIB}_LIBRARY)
list(APPEND OPENEXR_LIBRARIES ${OPENEXR_${OPENEXR_LIB}_LIBRARY})
endif()
endforeach(OPENEXR_LIB)
# So #include <half.h> works
list(APPEND OPENEXR_INCLUDE_DIRS ${OPENEXR_INCLUDE_DIR})
list(APPEND OPENEXR_INCLUDE_DIRS ${OPENEXR_INCLUDE_DIR}/OpenEXR)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OpenEXR
REQUIRED_VARS
OPENEXR_INCLUDE_DIRS
OPENEXR_LIBRARIES
VERSION_VAR
OPENEXR_VERSION
)
mark_as_advanced(
OPENEXR_ILMIMF_LIBRARY
OPENEXR_IMATH_LIBRARY
OPENEXR_IEX_LIBRARY
OPENEXR_HALF_LIBRARY
OPENEXR_VERSION)
# Restore the original CMAKE_FIND_LIBRARY_SUFFIXES
set (CMAKE_FIND_LIBRARY_SUFFIXES ${_openexr_orig_suffixes})