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opencv/cmake/OpenCVFindLAPACK.cmake
Alexander Alekhin a0d5277e0d Merge branch 4.x
2021-12-30 21:43:45 +00:00

255 lines
9.9 KiB
CMake
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macro(_find_header_file_in_dirs VAR NAME)
unset(${VAR})
unset(${VAR} CACHE)
if(" ${ARGN}" STREQUAL " ")
check_include_file("${NAME}" HAVE_${VAR})
if(HAVE_${VAR})
set(${VAR} "${NAME}") # fallback
else()
set(${VAR} "")
endif()
else()
find_path(${VAR} "${NAME}" ${ARGN} NO_DEFAULT_PATH)
if(${VAR})
set(${VAR} "${${VAR}}/${NAME}")
unset(${VAR} CACHE)
else()
unset(${VAR} CACHE)
set(${VAR} "")
endif()
endif()
endmacro()
macro(ocv_lapack_make_hdr _cblas_hdr _lapacke_hdr)
# adding proxy opencv_lapack.h header
set(CBLAS_H_PROXY_PATH ${CMAKE_BINARY_DIR}/opencv_lapack.h)
set(_lapack_add_extern_c NOT (APPLE OR OPENCV_SKIP_LAPACK_EXTERN_C) OR OPENCV_FORCE_LAPACK_EXTERN_C)
set(_lapack_content "// This file is auto-generated\n")
if(${_lapack_add_extern_c})
list(APPEND _lapack_content "extern \"C\" {")
endif()
if(NOT OPENCV_SKIP_LAPACK_MSVC_FIX)
list(APPEND _lapack_content "
#ifdef _MSC_VER
#include <complex.h>
#define lapack_complex_float _Fcomplex
#define lapack_complex_double _Dcomplex
#endif
")
endif()
list(APPEND _lapack_content "#include \"${_cblas_hdr}\"")
if(NOT "${_cblas_hdr}" STREQUAL "${_lapacke_hdr}")
list(APPEND _lapack_content "#include \"${_lapacke_hdr}\"")
endif()
list(APPEND _lapack_content "
#if defined(LAPACK_GLOBAL) || defined(LAPACK_NAME)
/*
* Using netlib's reference LAPACK implementation version >= 3.4.0 (first with C interface).
* Use LAPACK_xxxx to transparently (via predefined lapack macros) deal with pre and post 3.9.1 versions.
* LAPACK 3.9.1 introduces LAPACK_FORTRAN_STRLEN_END and modifies (through preprocessing) the declarations of the following functions used in opencv
* sposv_, dposv_, spotrf_, dpotrf_, sgesdd_, dgesdd_, sgels_, dgels_
* which end up with an extra parameter.
* So we also need to preprocess the function calls in opencv coding by prefixing them with LAPACK_.
* The good news is the preprocessing works fine whatever netlib's LAPACK version.
*/
#define OCV_LAPACK_FUNC(f) LAPACK_##f
#else
/* Using other LAPACK implementations so fall back to opencv's assumption until now */
#define OCV_LAPACK_FUNC(f) f##_
#endif
")
if(${_lapack_add_extern_c})
list(APPEND _lapack_content "}")
endif()
string(REPLACE ";" "\n" _lapack_content "${_lapack_content}")
ocv_update_file("${CBLAS_H_PROXY_PATH}" "${_lapack_content}")
endmacro()
macro(ocv_lapack_run_check)
if(CMAKE_GENERATOR MATCHES "Visual Studio" # MSBuild
AND LAPACK_IMPL STREQUAL "MKL"
AND ";${LAPACK_LIBRARIES};" MATCHES ";tbb;" AND TARGET tbb
AND DEFINED TBB_INTERFACE_VERSION AND NOT (TBB_INTERFACE_VERSION LESS 12000) # oneTBB/oneAPI workaround
)
# workaround DEFAULTLIB:tbb12.lib issue
get_target_property(_tbb_lib tbb IMPORTED_LOCATION)
if(NOT _tbb_lib)
get_target_property(_tbb_lib tbb IMPORTED_LOCATION_RELEASE)
endif()
if(_tbb_lib AND NOT OPENCV_SKIP_WORKAROUND_MKL_LINK_DIRECTORIES_TBB)
# MSBuild drops content of 'LIB' environment variable,
# so pass TBB library directory through `link_directories()`
get_filename_component(_tbb_lib_dir "${_tbb_lib}" DIRECTORY)
message(STATUS "MKL: adding '${_tbb_lib_dir}' to link directories (workaround DEFAULTLIB issue)")
link_directories("${_tbb_lib_dir}")
elseif(NOT OPENCV_SKIP_WORKAROUND_MKL_DEFAULTLIB)
# We may have tbb.lib for 'tbb' target, but not 'tbb12.lib'
ocv_update(OPENCV_MKL_IGNORE_DEFAULTLIB_TBB "tbb12.lib")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /NODEFAULTLIB:${OPENCV_MKL_IGNORE_DEFAULTLIB_TBB}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /NODEFAULTLIB:${OPENCV_MKL_IGNORE_DEFAULTLIB_TBB}")
endif()
endif()
# TODO add cache for try_compile() inputs/results
get_property(__link_directories DIRECTORY PROPERTY LINK_DIRECTORIES)
if(LAPACK_LINK_LIBRARIES)
list(APPEND __link_directories ${LAPACK_LINK_LIBRARIES})
endif()
try_compile(__VALID_LAPACK
"${OpenCV_BINARY_DIR}"
"${OpenCV_SOURCE_DIR}/cmake/checks/lapack_check.cpp"
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${LAPACK_INCLUDE_DIR}\;${CMAKE_BINARY_DIR}"
"-DLINK_DIRECTORIES:STRING=${__link_directories}"
LINK_LIBRARIES ${LAPACK_LIBRARIES}
OUTPUT_VARIABLE TRY_OUT
)
if(NOT __VALID_LAPACK)
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"\nLAPACK(${LAPACK_IMPL}) check FAILED:\n"
" LAPACK_INCLUDE_DIR: '${LAPACK_INCLUDE_DIR}'\n"
" LAPACK_LIBRARIES: '${LAPACK_LIBRARIES}'\n"
" LAPACK_LINK_LIBRARIES: '${__link_directories}'\n"
" Output:\n${TRY_OUT}\n\n")
message(STATUS "LAPACK(${LAPACK_IMPL}): Can't build LAPACK check code. This LAPACK version is not supported.")
unset(LAPACK_LIBRARIES)
else()
message(STATUS "${LAPACK_IMPL}: Support is enabled.")
ocv_include_directories(${LAPACK_INCLUDE_DIR})
set(HAVE_LAPACK 1)
endif()
endmacro()
macro(ocv_lapack_check)
string(REGEX REPLACE "[^a-zA-Z0-9_]" "_" _lapack_impl "${LAPACK_IMPL}")
message(STATUS "${LAPACK_IMPL}: LAPACK_LIBRARIES=${LAPACK_LIBRARIES}")
_find_header_file_in_dirs(OPENCV_CBLAS_H_PATH_${_lapack_impl} "${LAPACK_CBLAS_H}" "${LAPACK_INCLUDE_DIR}")
_find_header_file_in_dirs(OPENCV_LAPACKE_H_PATH_${_lapack_impl} "${LAPACK_LAPACKE_H}" "${LAPACK_INCLUDE_DIR}")
message(STATUS "${LAPACK_IMPL}: Looking for CBLAS/LAPACK headers in '${LAPACK_INCLUDE_DIR}': '${OPENCV_CBLAS_H_PATH_${_lapack_impl}}', '${OPENCV_LAPACKE_H_PATH_${_lapack_impl}}'")
if(OPENCV_CBLAS_H_PATH_${_lapack_impl} AND OPENCV_LAPACKE_H_PATH_${_lapack_impl})
ocv_lapack_make_hdr(${OPENCV_CBLAS_H_PATH_${_lapack_impl}} ${OPENCV_LAPACKE_H_PATH_${_lapack_impl}})
ocv_lapack_run_check()
else()
unset(LAPACK_LIBRARIES)
endif()
endmacro()
if(WITH_LAPACK)
unset(LAPACK_LIBRARIES)
unset(LAPACK_LIBRARIES CACHE)
ocv_update(LAPACK_IMPL "Unknown")
if(NOT BUILD_CLAPACK AND NOT OPENCV_LAPACK_FIND_PACKAGE_ONLY)
if(NOT LAPACK_LIBRARIES AND NOT OPENCV_LAPACK_DISABLE_MKL)
include(cmake/OpenCVFindMKL.cmake)
if(HAVE_MKL)
set(LAPACK_INCLUDE_DIR ${MKL_INCLUDE_DIRS})
set(LAPACK_LIBRARIES ${MKL_LIBRARIES})
set(LAPACK_CBLAS_H "mkl_cblas.h")
set(LAPACK_LAPACKE_H "mkl_lapack.h")
set(LAPACK_IMPL "MKL")
set(LAPACK_VERSION "${MKL_VERSION_STR}")
ocv_lapack_check()
endif()
endif()
if(NOT LAPACK_LIBRARIES)
include(cmake/OpenCVFindOpenBLAS.cmake)
if(OpenBLAS_FOUND)
set(LAPACK_INCLUDE_DIR ${OpenBLAS_INCLUDE_DIR})
set(LAPACK_LIBRARIES ${OpenBLAS_LIB})
set(LAPACK_CBLAS_H "cblas.h")
set(LAPACK_LAPACKE_H "lapacke.h")
set(LAPACK_IMPL "OpenBLAS")
ocv_lapack_check()
endif()
endif()
if(NOT LAPACK_LIBRARIES AND UNIX)
include(cmake/OpenCVFindAtlas.cmake)
if(ATLAS_FOUND)
set(LAPACK_INCLUDE_DIR ${Atlas_INCLUDE_DIR})
set(LAPACK_LIBRARIES ${Atlas_LIBRARIES})
set(LAPACK_CBLAS_H "cblas.h")
set(LAPACK_LAPACKE_H "lapacke.h")
set(LAPACK_IMPL "Atlas")
ocv_lapack_check()
endif()
endif()
endif()
if(NOT BUILD_CLAPACK AND NOT LAPACK_LIBRARIES)
if(WIN32 AND NOT OPENCV_LAPACK_SHARED_LIBS)
set(BLA_STATIC 1)
endif()
find_package(LAPACK)
if(LAPACK_FOUND)
if(NOT DEFINED LAPACKE_INCLUDE_DIR)
find_path(LAPACKE_INCLUDE_DIR "lapacke.h")
endif()
if(NOT DEFINED MKL_LAPACKE_INCLUDE_DIR)
find_path(MKL_LAPACKE_INCLUDE_DIR "mkl_lapack.h")
endif()
if(MKL_LAPACKE_INCLUDE_DIR AND NOT OPENCV_LAPACK_DISABLE_MKL)
set(LAPACK_INCLUDE_DIR ${MKL_LAPACKE_INCLUDE_DIR})
set(LAPACK_CBLAS_H "mkl_cblas.h")
set(LAPACK_LAPACKE_H "mkl_lapack.h")
set(LAPACK_IMPL "LAPACK/MKL")
ocv_lapack_check()
endif()
if(NOT HAVE_LAPACK)
if(LAPACKE_INCLUDE_DIR)
set(LAPACK_INCLUDE_DIR ${LAPACKE_INCLUDE_DIR})
set(LAPACK_CBLAS_H "cblas.h")
set(LAPACK_LAPACKE_H "lapacke.h")
set(LAPACK_IMPL "LAPACK/Generic")
ocv_lapack_check()
endif()
endif()
endif()
endif()
if(NOT HAVE_LAPACK)
if(LAPACK_LIBRARIES AND LAPACK_CBLAS_H AND LAPACK_LAPACKE_H)
ocv_lapack_check()
else()
unset(LAPACK_LIBRARIES)
unset(LAPACK_LIBRARIES CACHE)
endif()
endif()
if(NOT BUILD_CLAPACK AND APPLE AND NOT LAPACK_LIBRARIES)
set(LAPACK_INCLUDE_DIR "")
set(LAPACK_LIBRARIES "-framework Accelerate")
set(LAPACK_CBLAS_H "Accelerate/Accelerate.h")
set(LAPACK_LAPACKE_H "Accelerate/Accelerate.h")
set(LAPACK_IMPL "LAPACK/Apple")
ocv_lapack_check()
endif()
if(BUILD_CLAPACK)
ocv_assert(NOT HAVE_LAPACK)
endif()
if(NOT HAVE_LAPACK) # OR BUILD_CLAPACK=ON
add_subdirectory(3rdparty/clapack)
set(LAPACK_CBLAS_H "cblas.h")
set(LAPACK_LAPACKE_H "lapack.h")
set(LAPACK_IMPL "LAPACK/clapack")
set(LAPACK_INCLUDE_DIR "${CLAPACK_INCLUDE_DIR}")
set(LAPACK_LIBRARIES ${CLAPACK_LIBRARIES})
set(LAPACK_VERSION "${CLAPACK_VERSION}")
ocv_lapack_make_hdr("${LAPACK_INCLUDE_DIR}/${LAPACK_CBLAS_H}" "${LAPACK_INCLUDE_DIR}/${LAPACK_LAPACKE_H}")
# unable to properly check against source code without binaries: ocv_lapack_check()
ocv_include_directories(${LAPACK_INCLUDE_DIR})
set(HAVE_LAPACK 1)
endif()
set(LAPACK_INCLUDE_DIR ${LAPACK_INCLUDE_DIR} CACHE PATH "Path to BLAS include dir" FORCE)
set(LAPACK_CBLAS_H ${LAPACK_CBLAS_H} CACHE STRING "Alternative name of cblas.h" FORCE)
set(LAPACK_LAPACKE_H ${LAPACK_LAPACKE_H} CACHE STRING "Alternative name of lapacke.h" FORCE)
set(LAPACK_LIBRARIES ${LAPACK_LIBRARIES} CACHE STRING "Names of BLAS & LAPACK binaries (.so, .dll, .a, .lib)" FORCE)
set(LAPACK_IMPL ${LAPACK_IMPL} CACHE STRING "Lapack implementation id" FORCE)
endif()
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