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common.cmake
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# This file is included from a subdirectory
set(PYTHON_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}")
ocv_add_module(${MODULE_NAME} BINDINGS PRIVATE_REQUIRED opencv_python_bindings_generator)
include_directories(SYSTEM
"${${PYTHON}_INCLUDE_PATH}"
${${PYTHON}_NUMPY_INCLUDE_DIRS}
)
ocv_module_include_directories(
"${PYTHON_SOURCE_DIR}/src2"
"${OPENCV_PYTHON_BINDINGS_DIR}"
)
# try to use dynamic symbols linking with libpython.so
set(OPENCV_FORCE_PYTHON_LIBS OFF CACHE BOOL "")
string(REPLACE "-Wl,--no-undefined" "" CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}")
if(NOT WIN32 AND NOT APPLE AND NOT OPENCV_PYTHON_SKIP_LINKER_EXCLUDE_LIBS)
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--exclude-libs=ALL")
endif()
ocv_add_library(${the_module} MODULE ${PYTHON_SOURCE_DIR}/src2/cv2.cpp ${cv2_generated_hdrs} ${opencv_userdef_hdrs} ${cv2_custom_hdr})
if(TARGET gen_opencv_python_source)
add_dependencies(${the_module} gen_opencv_python_source)
endif()
ocv_assert(${PYTHON}_VERSION_MAJOR)
ocv_assert(${PYTHON}_VERSION_MINOR)
if(${PYTHON}_LIMITED_API)
# support only python3.3+
ocv_assert(${PYTHON}_VERSION_MAJOR EQUAL 3 AND ${PYTHON}_VERSION_MINOR GREATER 2)
target_compile_definitions(${the_module} PRIVATE CVPY_DYNAMIC_INIT)
if(WIN32)
string(REPLACE
"python${${PYTHON}_VERSION_MAJOR}${${PYTHON}_VERSION_MINOR}.lib"
"python${${PYTHON}_VERSION_MAJOR}.lib"
${PYTHON}_LIBRARIES
"${${PYTHON}_LIBRARIES}")
endif()
endif()
if(APPLE)
set_target_properties(${the_module} PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
elseif(WIN32 OR OPENCV_FORCE_PYTHON_LIBS)
if(${PYTHON}_DEBUG_LIBRARIES AND NOT ${PYTHON}_LIBRARIES MATCHES "optimized.*debug")
ocv_target_link_libraries(${the_module} PRIVATE debug ${${PYTHON}_DEBUG_LIBRARIES} optimized ${${PYTHON}_LIBRARIES})
else()
ocv_target_link_libraries(${the_module} PRIVATE ${${PYTHON}_LIBRARIES})
endif()
endif()
if(TARGET gen_opencv_python_source)
set(deps ${OPENCV_MODULE_${the_module}_DEPS})
list(REMOVE_ITEM deps opencv_python_bindings_generator) # don't add dummy module to target_link_libraries list
endif()
ocv_target_link_libraries(${the_module} PRIVATE ${deps})
if(DEFINED ${PYTHON}_CVPY_SUFFIX)
set(CVPY_SUFFIX "${${PYTHON}_CVPY_SUFFIX}")
else()
set(__python_ext_suffix_var "EXT_SUFFIX")
if("${${PYTHON}_VERSION_MAJOR}" STREQUAL "2")
set(__python_ext_suffix_var "SO")
endif()
execute_process(COMMAND ${${PYTHON}_EXECUTABLE} -c "import distutils.sysconfig; print(distutils.sysconfig.get_config_var('${__python_ext_suffix_var}'))"
RESULT_VARIABLE PYTHON_CVPY_PROCESS
OUTPUT_VARIABLE CVPY_SUFFIX
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(NOT PYTHON_CVPY_PROCESS EQUAL 0)
set(CVPY_SUFFIX ".so")
endif()
if(${PYTHON}_LIMITED_API)
if(WIN32)
string(REGEX REPLACE "\\.[^\\.]*\\." "." CVPY_SUFFIX "${CVPY_SUFFIX}")
else()
string(REGEX REPLACE "\\.[^\\.]*\\." ".abi${${PYTHON}_VERSION_MAJOR}." CVPY_SUFFIX "${CVPY_SUFFIX}")
endif()
endif()
endif()
ocv_update(OPENCV_PYTHON_EXTENSION_BUILD_PATH "${LIBRARY_OUTPUT_PATH}/${MODULE_INSTALL_SUBDIR}")
set_target_properties(${the_module} PROPERTIES
LIBRARY_OUTPUT_DIRECTORY "${OPENCV_PYTHON_EXTENSION_BUILD_PATH}"
ARCHIVE_OUTPUT_NAME ${the_module} # prevent name conflict for python2/3 outputs
PREFIX ""
OUTPUT_NAME cv2
SUFFIX ${CVPY_SUFFIX})
if(ENABLE_SOLUTION_FOLDERS)
set_target_properties(${the_module} PROPERTIES FOLDER "bindings")
endif()
if(MSVC)
add_definitions(-DCVAPI_EXPORTS)
endif()
if((CV_GCC OR CV_CLANG) AND NOT ENABLE_NOISY_WARNINGS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-function")
endif()
if(MSVC AND NOT ENABLE_NOISY_WARNINGS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4100") #unreferenced formal parameter
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4127") #conditional expression is constant
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4505") #unreferenced local function has been removed
string(REPLACE "/W4" "/W3" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
if(MSVC)
ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4996)
else()
ocv_warnings_disable(CMAKE_CXX_FLAGS
-Wdeprecated-declarations
-Woverloaded-virtual -Wunused-private-field
-Wundef # accurate guard via #pragma doesn't work (C++ preprocessor doesn't handle #pragma)
)
endif()
if(MSVC AND NOT BUILD_SHARED_LIBS)
set_target_properties(${the_module} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:atlthunk.lib /NODEFAULTLIB:atlsd.lib /DEBUG")
endif()
if(MSVC AND NOT ${PYTHON}_DEBUG_LIBRARIES)
set(PYTHON_INSTALL_CONFIGURATIONS CONFIGURATIONS Release)
else()
set(PYTHON_INSTALL_CONFIGURATIONS "")
endif()
if(WIN32)
set(PYTHON_INSTALL_ARCHIVE "")
else()
set(PYTHON_INSTALL_ARCHIVE ARCHIVE DESTINATION ${${PYTHON}_PACKAGES_PATH} COMPONENT python)
endif()
set(__python_loader_subdir "")
if(NOT OPENCV_SKIP_PYTHON_LOADER)
set(__python_loader_subdir "cv2/")
endif()
if(NOT " ${PYTHON}" STREQUAL " PYTHON"
AND NOT DEFINED OPENCV_PYTHON_INSTALL_PATH
)
if(DEFINED OPENCV_${PYTHON}_INSTALL_PATH)
set(OPENCV_PYTHON_INSTALL_PATH "${OPENCV_${PYTHON}_INSTALL_PATH}")
elseif(NOT OPENCV_SKIP_PYTHON_LOADER)
set(OPENCV_PYTHON_INSTALL_PATH "${${PYTHON}_PACKAGES_PATH}")
endif()
endif()
if(NOT OPENCV_SKIP_PYTHON_LOADER AND DEFINED OPENCV_PYTHON_INSTALL_PATH)
include("${CMAKE_CURRENT_LIST_DIR}/python_loader.cmake")
set(OPENCV_PYTHON_INSTALL_PATH_SETUPVARS "${OPENCV_PYTHON_INSTALL_PATH}" CACHE INTERNAL "")
endif()
if(OPENCV_SKIP_PYTHON_LOADER)
if(DEFINED OPENCV_${PYTHON}_INSTALL_PATH)
set(__python_binary_install_path "${OPENCV_${PYTHON}_INSTALL_PATH}")
elseif(DEFINED ${PYTHON}_PACKAGES_PATH)
set(__python_binary_install_path "${${PYTHON}_PACKAGES_PATH}")
else()
message(FATAL_ERROR "Specify 'OPENCV_${PYTHON}_INSTALL_PATH' variable")
endif()
else()
ocv_assert(DEFINED OPENCV_PYTHON_INSTALL_PATH)
if(${PYTHON}_LIMITED_API)
set(__python_binary_subdir "python-${${PYTHON}_VERSION_MAJOR}")
else()
set(__python_binary_subdir "python-${${PYTHON}_VERSION_MAJOR}.${${PYTHON}_VERSION_MINOR}")
endif()
set(__python_binary_install_path "${OPENCV_PYTHON_INSTALL_PATH}/${__python_loader_subdir}${__python_binary_subdir}")
endif()
install(TARGETS ${the_module}
${PYTHON_INSTALL_CONFIGURATIONS}
RUNTIME DESTINATION "${__python_binary_install_path}" COMPONENT python
LIBRARY DESTINATION "${__python_binary_install_path}" COMPONENT python
${PYTHON_INSTALL_ARCHIVE}
)
set(__INSTALL_PATH_${PYTHON} "${__python_binary_install_path}" CACHE INTERNAL "") # CMake status
if(NOT OPENCV_SKIP_PYTHON_LOADER)
ocv_assert(DEFINED OPENCV_PYTHON_INSTALL_PATH)
if(OpenCV_FOUND)
set(__loader_path "${OpenCV_BINARY_DIR}/python_loader")
else()
set(__loader_path "${CMAKE_BINARY_DIR}/python_loader")
endif()
set(__python_loader_install_tmp_path "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/install/python_loader/")
set(OpenCV_PYTHON_LOADER_FULL_INSTALL_PATH "${CMAKE_INSTALL_PREFIX}/${OPENCV_PYTHON_INSTALL_PATH}/cv2")
if(IS_ABSOLUTE "${OPENCV_PYTHON_INSTALL_PATH}")
set(CMAKE_PYTHON_EXTENSION_INSTALL_PATH_BASE "'${OPENCV_PYTHON_INSTALL_PATH}/cv2'")
else()
set(CMAKE_PYTHON_EXTENSION_INSTALL_PATH_BASE "LOADER_DIR")
endif()
if(DEFINED ${PYTHON}_VERSION_MINOR AND NOT ${PYTHON}_LIMITED_API)
set(__target_config "config-${${PYTHON}_VERSION_MAJOR}.${${PYTHON}_VERSION_MINOR}.py")
else()
set(__target_config "config-${${PYTHON}_VERSION_MAJOR}.py")
endif()
if(CMAKE_GENERATOR MATCHES "Visual Studio")
set(CMAKE_PYTHON_EXTENSION_PATH "'${OPENCV_PYTHON_EXTENSION_BUILD_PATH}/Release'") # TODO: CMAKE_BUILD_TYPE is not defined
else()
set(CMAKE_PYTHON_EXTENSION_PATH "'${OPENCV_PYTHON_EXTENSION_BUILD_PATH}'")
endif()
configure_file("${PYTHON_SOURCE_DIR}/package/template/config-x.y.py.in" "${__loader_path}/cv2/${__target_config}" @ONLY)
if(IS_ABSOLUTE __python_binary_install_path)
set(CMAKE_PYTHON_EXTENSION_PATH "'${__python_binary_install_path}'")
else()
file(RELATIVE_PATH OpenCV_PYTHON_BINARY_RELATIVE_INSTALL_PATH "${OpenCV_PYTHON_LOADER_FULL_INSTALL_PATH}" "${CMAKE_INSTALL_PREFIX}/${__python_binary_install_path}")
set(CMAKE_PYTHON_EXTENSION_PATH "os.path.join(${CMAKE_PYTHON_EXTENSION_INSTALL_PATH_BASE}, '${OpenCV_PYTHON_BINARY_RELATIVE_INSTALL_PATH}')")
endif()
configure_file("${PYTHON_SOURCE_DIR}/package/template/config-x.y.py.in" "${__python_loader_install_tmp_path}/cv2/${__target_config}" @ONLY)
install(FILES "${__python_loader_install_tmp_path}/cv2/${__target_config}" DESTINATION "${OPENCV_PYTHON_INSTALL_PATH}/cv2/" COMPONENT python)
# handle Python extra code
foreach(m ${OPENCV_MODULES_BUILD})
if (";${OPENCV_MODULE_${m}_WRAPPERS};" MATCHES ";python;" AND HAVE_${m}
AND EXISTS "${OPENCV_MODULE_${m}_LOCATION}/misc/python/package"
)
set(__base "${OPENCV_MODULE_${m}_LOCATION}/misc/python/package")
file(GLOB_RECURSE extra_py_files
RELATIVE "${__base}"
"${__base}/**/*.py"
)
if(extra_py_files)
list(SORT extra_py_files)
foreach(f ${extra_py_files})
configure_file("${__base}/${f}" "${__loader_path}/cv2/_extra_py_code/${f}" COPYONLY)
install(FILES "${__base}/${f}" DESTINATION "${OPENCV_PYTHON_INSTALL_PATH}/cv2/_extra_py_code/${f}" COMPONENT python)
endforeach()
else()
message(WARNING "Module ${m} has no .py files in misc/python/package")
endif()
endif()
endforeach(m)
endif() # NOT OPENCV_SKIP_PYTHON_LOADER
unset(PYTHON_SRC_DIR)
unset(PYTHON_CVPY_PROCESS)
unset(CVPY_SUFFIX)
unset(PYTHON_INSTALL_CONFIGURATIONS)
unset(PYTHON_INSTALL_ARCHIVE)