Initial support for FFTW3 using CMake.
Edgar Velazquez-Armendariz
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f224b0c74a
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# - Find FFTW3
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# This module searches for the FFTW3 library.
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#
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# The module defines the following variables:
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# FFTW3_INCLUDE_DIRS - where to find fftw3.h, etc.
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# FFTW3_LIBRARIES - the libraries needed to use FFTW3.
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# FFTW3_FOUND - if false, do not try to use FFTW3.
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#
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# Variables used by this module, they can change the default behavior and need
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# to be set before calling find_package:
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#
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# FFTW3_PRECISION - String which determines the variant of the library to find
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# based on the floating point type. Its value is one of
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# "DOUBLE" (default), "SINGLE", "LONG DOUBLE"
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# FFTW3_ROOT_DIR - The preferred installation prefix for searching for FFTW3.
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# Set if this module has problems finding the proper
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# FFTW3 instalation.
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#
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# ============================================================================
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# Originally created by Robert Osfield. [OpenSceneGraph]
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# ============================================================================
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# Search FFTW3_ROOT_DIR is set
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set (_FFTW3_SEARCHES "")
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if (FFTW3_ROOT_DIR)
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set(_FFTW3_SEARCH_ROOT PATHS ${FFTW3_ROOT_DIR} NO_DEFAULT_PATH)
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list(APPEND _FFTW3_SEARCHES _FFTW3_SEARCH_ROOT)
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endif()
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# Normal search
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set(_FFTW3_SEARCH_NORMAL
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PATHS "/usr/local"
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"/opt/local/"
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"/opt/local/Library/Frameworks"
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"/opt")
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list(APPEND _FFTW3_SEARCHES _FFTW3_SEARCH_NORMAL)
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# Default precision is double
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if (NOT FFTW3_PRECISION)
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set (FFTW3_PRECISION "DOUBLE")
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else()
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string (TOUPPER "${FFTW3_PRECISION}" FFTW3_PRECISION)
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endif()
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# Suffix based on the precision
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if (FFTW3_PRECISION STREQUAL "DOUBLE")
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set(_FFTW3_SUFFIX "")
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elseif (FFTW3_PRECISION STREQUAL "SINGLE")
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set(_FFTW3_SUFFIX "f")
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elseif (FFTW3_PRECISION STREQUAL "LONG DOUBLE")
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set(_FFTW3_SUFFIX "l")
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else()
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message(FATAL_ERROR "Unknown FFTW3 precision: ${FFTW3_PRECISION}")
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endif()
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# Names of the library, including two forms of version naming
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set(_FFTW3_NAMES "fftw3${_FFTW3_SUFFIX}" "fftw${_FFTW3_SUFFIX}-3")
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if (WIN32)
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list(APPEND _FFTW3_NAMES "libfftw3${_FFTW3_SUFFIX}" "libfftw${_FFTW3_SUFFIX}-3")
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endif()
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foreach(version_minor 4 3 2 1)
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list(APPEND _FFTW3_NAMES "fftw${_FFTW3_SUFFIX}-3.${version_minor}"
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"fftw3${_FFTW3_SUFFIX}-${version_minor}")
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if (WIN32)
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list(APPEND _FFTW3_NAMES "libfftw${_FFTW3_SUFFIX}-3.${version_minor}"
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"libfftw3${_FFTW3_SUFFIX}-${version_minor}")
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endif()
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endforeach()
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# The separate threads and OpenMP library have a suffix
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if (UNIX AND NOT APPLE)
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set(_FFTW3_THREADS_NAMES "")
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set(_FFTW3_OMP_NAMES "")
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foreach(name ${_FFTW3_NAMES})
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list(APPEND _FFTW3_THREADS_NAMES "${name}_threads")
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list(APPEND _FFTW3_OMP_NAMES "${name}_omp")
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endforeach()
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endif()
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# Try each search configuration
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foreach (search ${_FFTW3_SEARCHES})
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find_path (FFTW3_INCLUDE_DIR NAMES "fftw3.h" ${${search}} PATH_SUFFIXES "include")
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find_library (FFTW3_LIBRARY NAMES ${_FFTW3_NAMES} ${${search}} PATH_SUFFIXES "include")
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if (UNIX AND NOT APPLE)
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find_library (FFTW3_THREADS_LIBRARY
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NAMES ${_FFTW3_THREADS_NAMES} ${${search}} PATH_SUFFIXES "include")
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find_library (FFTW3_OMP_LIBRARY
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NAMES ${_FFTW3_OMP_NAMES} ${${search}} PATH_SUFFIXES "include")
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endif()
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endforeach()
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mark_as_advanced(FFTW3_INCLUDE_DIR FFTW3_LIBRARY)
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if (UNIX AND NOT APPLE)
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mark_as_advanced(FFTW3_THREADS_LIBRARY FFTW3_OMP_LIBRARY)
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endif()
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# TODO: Define an option to look for an appropriate threads variant (pthreads or OMP)
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set(_FFTW3_LIB_VARS FFTW3_LIBRARY)
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if (UNIX AND NOT APPLE)
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list(APPEND _FFTW3_LIB_VARS FFTW3_THREADS_LIBRARY)
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endif()
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# handle the QUIETLY and REQUIRED arguments and set FFTW3_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(FFTW3 DEFAULT_MSG FFTW3_INCLUDE_DIR ${_FFTW3_LIB_VARS})
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if (FFTW3_FOUND)
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# TODO: create a compile test to find if FFTW_DLL is needed on Windows
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set(FFTW3_INCLUDE_DIRS ${FFTW3_INCLUDE_DIR})
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set(FFTW3_LIBRARIES "")
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foreach(var ${_FFTW3_LIB_VARS})
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list(APPEND FFTW3_LIBRARIES ${${var}})
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endforeach()
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endif()
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@ -182,6 +182,16 @@ if (COLLADA_FOUND)
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add_definitions(-DMTS_HAS_COLLADA=1)
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endif()
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# FFTW3 (optional)
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find_package(FFTW3)
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CMAKE_DEPENDENT_OPTION(MTS_FFTW "Enable FFTW3 for fast image convolution support." ON
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"FFTW3_FOUND" OFF)
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if (MTS_FFTW)
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add_definitions(-DMTS_HAS_FFTW=1)
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endif()
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find_package(OpenGL REQUIRED)
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set (GLEW_MX ON)
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find_package(GLEW REQUIRED)
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@ -143,6 +143,12 @@ include_directories(
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set(LIBS ${ZLIB_LIBRARIES} ${PNG_LIBRARIES} ${JPEG_LIBRARIES}
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${ILMBASE_LIBRARIES} ${OPENEXR_LIBRARIES}
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${Boost_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${CMAKE_DL_LIBS})
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if(MTS_FFTW)
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include_directories(${FFTW3_INCLUDE_DIRS})
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list(APPEND LIBS ${FFTW3_LIBRARIES})
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endif()
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if(WIN32)
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list(APPEND LIBS ws2_32 psapi)
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elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
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