diff options
Diffstat (limited to 'build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake')
| -rw-r--r-- | build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake new file mode 100644 index 00000000000..08d872445d7 --- /dev/null +++ b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake @@ -0,0 +1,244 @@ +# Module to find OpenEXR. +# +# This module will first look into the directories defined by the variables: +# - OPENEXR_HOME, OPENEXR_VERSION, OPENEXR_LIB_AREA +# +# It also supports non-standard names for the library components. +# +# To use a custom OpenEXR +# - Set the variable OPENEXR_CUSTOM to True +# - Set the variable OPENEXR_CUSTOM_LIBRARY to the name of the library to +# use, e.g. "SpiIlmImf" +# - Optionally set the variable OPENEXR_CUSTOM_INCLUDE_DIR to any +# particularly weird place that the OpenEXR/*.h files may be found +# - Optionally set the variable OPENEXR_CUSTOM_LIB_DIR to any +# particularly weird place that the libraries files may be found +# +# This module defines the following variables: +# +# OPENEXR_INCLUDE_DIR - where to find ImfRgbaFile.h, OpenEXRConfig, etc. +# OPENEXR_LIBRARIES - list of libraries to link against when using OpenEXR. +# This list does NOT include the IlmBase libraries. +# These are defined by the FindIlmBase module. +# OPENEXR_FOUND - True if OpenEXR was found. + +# Other standarnd issue macros +include (SelectLibraryConfigurations) +include (FindPackageHandleStandardArgs) +include (FindPackageMessage) + +if( OPENEXR_USE_STATIC_LIBS ) + set( _openexr_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES}) + if(WIN32) + set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES}) + else() + set(CMAKE_FIND_LIBRARY_SUFFIXES .a ) + endif() +endif() + +# Macro to assemble a helper state variable +macro (SET_STATE_VAR varname) + set (tmp_lst + ${OPENEXR_CUSTOM} | ${OPENEXR_CUSTOM_LIBRARY} | + ${OPENEXR_HOME} | ${OPENEXR_VERSION} | ${OPENEXR_LIB_AREA} + ) + set (${varname} "${tmp_lst}") + unset (tmp_lst) +endmacro () + +# To enforce that find_* functions do not use inadvertently existing versions +if (OPENEXR_CUSTOM) + set (OPENEXR_FIND_OPTIONS "NO_DEFAULT_PATH") +endif () + +# Macro to search for an include directory +macro (PREFIX_FIND_INCLUDE_DIR prefix includefile libpath_var) + string (TOUPPER ${prefix}_INCLUDE_DIR tmp_varname) + find_path(${tmp_varname} ${includefile} + HINTS ${${libpath_var}} + PATH_SUFFIXES include + ${OPENEXR_FIND_OPTIONS} + ) + if (${tmp_varname}) + mark_as_advanced (${tmp_varname}) + endif () + unset (tmp_varname) +endmacro () + + +# Macro to search for the given library and adds the cached +# variable names to the specified list +macro (PREFIX_FIND_LIB prefix libname libpath_var liblist_var cachelist_var) + string (TOUPPER ${prefix}_${libname} tmp_prefix) + # Handle new library names for OpenEXR 2.1 build via cmake + string(REPLACE "." "_" _ILMBASE_VERSION ${ILMBASE_VERSION}) + string(SUBSTRING ${_ILMBASE_VERSION} 0 3 _ILMBASE_VERSION ) + find_library(${tmp_prefix}_LIBRARY_RELEASE + NAMES ${libname} ${libname}-${_ILMBASE_VERSION} + HINTS ${${libpath_var}} + PATH_SUFFIXES lib + ${OPENEXR_FIND_OPTIONS} + ) + find_library(${tmp_prefix}_LIBRARY_DEBUG + NAMES ${libname}d ${libname}_d ${libname}debug ${libname}_debug + HINTS ${${libpath_var}} + PATH_SUFFIXES lib + ${OPENEXR_FIND_OPTIONS} + ) + # Properly define ${tmp_prefix}_LIBRARY (cached) and ${tmp_prefix}_LIBRARIES + select_library_configurations (${tmp_prefix}) + list (APPEND ${liblist_var} ${tmp_prefix}_LIBRARIES) + + # Add to the list of variables which should be reset + list (APPEND ${cachelist_var} + ${tmp_prefix}_LIBRARY + ${tmp_prefix}_LIBRARY_RELEASE + ${tmp_prefix}_LIBRARY_DEBUG) + mark_as_advanced ( + ${tmp_prefix}_LIBRARY + ${tmp_prefix}_LIBRARY_RELEASE + ${tmp_prefix}_LIBRARY_DEBUG) + unset (tmp_prefix) +endmacro () + + +# Encode the current state of the external variables into a string +SET_STATE_VAR (OPENEXR_CURRENT_STATE) + +# If the state has changed, clear the cached variables +if (OPENEXR_CACHED_STATE AND + NOT OPENEXR_CACHED_STATE STREQUAL OPENEXR_CURRENT_STATE) + foreach (libvar ${OPENEXR_CACHED_VARS}) + unset (${libvar} CACHE) + endforeach () +endif () + +# Generic search paths +set (OpenEXR_generic_include_paths + ${OPENEXR_CUSTOM_INCLUDE_DIR} + /usr/include + /usr/include/${CMAKE_LIBRARY_ARCHITECTURE} + /usr/local/include + /sw/include + /opt/local/include) +set (OpenEXR_generic_library_paths + ${OPENEXR_CUSTOM_LIB_DIR} + /usr/lib + /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE} + /usr/local/lib + /usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE} + /sw/lib + /opt/local/lib) + +# Search paths for the OpenEXR files +if (OPENEXR_HOME) + set (OpenEXR_library_paths + ${OPENEXR_HOME}/lib + ${OPENEXR_HOME}/lib64) + if (OPENEXR_VERSION) + set (OpenEXR_include_paths + ${OPENEXR_HOME}/openexr-${OPENEXR_VERSION}/include + ${OPENEXR_HOME}/include/openexr-${OPENEXR_VERSION}) + list (APPEND OpenEXR_library_paths + ${OPENEXR_HOME}/openexr-${OPENEXR_VERSION}/lib + ${OPENEXR_HOME}/lib/openexr-${OPENEXR_VERSION}) + endif() + list (APPEND OpenEXR_include_paths ${OPENEXR_HOME}/include) + if (OPENEXR_LIB_AREA) + list (INSERT OpenEXR_library_paths 2 ${OPENEXR_LIB_AREA}) + endif () +endif () +if (ILMBASE_HOME AND OPENEXR_VERSION) + list (APPEND OpenEXR_include_paths + ${ILMBASE_HOME}/include/openexr-${OPENEXR_VERSION}) +endif() +list (APPEND OpenEXR_include_paths ${OpenEXR_generic_include_paths}) +list (APPEND OpenEXR_library_paths ${OpenEXR_generic_library_paths}) + +# Locate the header files +PREFIX_FIND_INCLUDE_DIR (OpenEXR + OpenEXR/ImfArray.h OpenEXR_include_paths) + +if (OPENEXR_INCLUDE_DIR) + # Get the version from config file, if not already set. + if (NOT OPENEXR_VERSION) + FILE(STRINGS "${OPENEXR_INCLUDE_DIR}/OpenEXR/OpenEXRConfig.h" OPENEXR_BUILD_SPECIFICATION + REGEX "^[ \t]*#define[ \t]+OPENEXR_VERSION_STRING[ \t]+\"[.0-9]+\".*$") + + if(OPENEXR_BUILD_SPECIFICATION) + if (NOT OpenEXR_FIND_QUIETLY) + message(STATUS "${OPENEXR_BUILD_SPECIFICATION}") + endif () + string(REGEX REPLACE ".*#define[ \t]+OPENEXR_VERSION_STRING[ \t]+\"([.0-9]+)\".*" + "\\1" XYZ ${OPENEXR_BUILD_SPECIFICATION}) + set("OPENEXR_VERSION" ${XYZ} CACHE STRING "Version of OpenEXR lib") + else() + # Old versions (before 2.0?) do not have any version string, just assuming 2.0 should be fine though. + message(WARNING "Could not determine ILMBase library version, assuming 2.0.") + set("OPENEXR_VERSION" "2.0" CACHE STRING "Version of OpenEXR lib") + endif() + endif() +endif () + +if (OPENEXR_CUSTOM) + if (NOT OPENEXR_CUSTOM_LIBRARY) + message (FATAL_ERROR "Custom OpenEXR library requested but OPENEXR_CUSTOM_LIBRARY is not set.") + endif() + set (OpenEXR_Library ${OPENEXR_CUSTOM_LIBRARY}) +else () +#elseif (${OPENEXR_VERSION} VERSION_LESS "2.1") + set (OpenEXR_Library IlmImf) +#else () +# string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _openexr_libs_ver ${OPENEXR_VERSION}) +# set (OpenEXR_Library IlmImf-${_openexr_libs_ver}) +endif () + +# Locate the OpenEXR library +set (OpenEXR_libvars "") +set (OpenEXR_cachevars "") +PREFIX_FIND_LIB (OpenEXR ${OpenEXR_Library} + OpenEXR_library_paths OpenEXR_libvars OpenEXR_cachevars) + +# Create the list of variables that might need to be cleared +set (OPENEXR_CACHED_VARS + OPENEXR_INCLUDE_DIR ${OpenEXR_cachevars} + CACHE INTERNAL "Variables set by FindOpenEXR.cmake" FORCE) + +# Store the current state so that variables might be cleared if required +set (OPENEXR_CACHED_STATE ${OPENEXR_CURRENT_STATE} + CACHE INTERNAL "State last seen by FindOpenEXR.cmake" FORCE) + +# Always link explicitly with zlib +set (OPENEXR_ZLIB ${ZLIB_LIBRARIES}) + +# Use the standard function to handle OPENEXR_FOUND +FIND_PACKAGE_HANDLE_STANDARD_ARGS (OpenEXR DEFAULT_MSG + OPENEXR_INCLUDE_DIR ${OpenEXR_libvars}) + +if (OPENEXR_FOUND) + set (OPENEXR_LIBRARIES "") + foreach (tmplib ${OpenEXR_libvars}) + list (APPEND OPENEXR_LIBRARIES ${${tmplib}}) + endforeach () + list (APPEND OPENEXR_LIBRARIES ${ZLIB_LIBRARIES}) + if (NOT OpenEXR_FIND_QUIETLY) + FIND_PACKAGE_MESSAGE (OPENEXR + "Found OpenEXR: ${OPENEXR_LIBRARIES}" + "[${OPENEXR_INCLUDE_DIR}][${OPENEXR_LIBRARIES}][${OPENEXR_CURRENT_STATE}]" + ) + endif () +endif () + +# Restore the original find library ordering +if( OPENEXR_USE_STATIC_LIBS ) + set(CMAKE_FIND_LIBRARY_SUFFIXES ${_openexr_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) +endif() + +# Unset the helper variables to avoid pollution +unset (OPENEXR_CURRENT_STATE) +unset (OpenEXR_include_paths) +unset (OpenEXR_library_paths) +unset (OpenEXR_generic_include_paths) +unset (OpenEXR_generic_library_paths) +unset (OpenEXR_libvars) +unset (OpenEXR_cachevars) |