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opencv/modules/python/common.cmake

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CMake
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Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
# This file is included from a subdirectory
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
2018-06-07 17:32:48 +08:00
set(PYTHON_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
python: 'sub-module' for binding sources and documentation meta information
2017-12-10 02:54:52 +08:00
ocv_add_module(${MODULE_NAME} BINDINGS PRIVATE_REQUIRED opencv_python_bindings_generator)
Merge branch 'master' into python2and3
2014-07-31 13:11:30 +08:00
cmake: use -isystem for Python/numpy include directories
2018-02-09 22:10:02 +08:00
include_directories(SYSTEM
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
"${${PYTHON}_INCLUDE_PATH}"
${${PYTHON}_NUMPY_INCLUDE_DIRS}
cmake: use -isystem for Python/numpy include directories
2018-02-09 22:10:02 +08:00
)
ocv_module_include_directories(
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
"${PYTHON_SOURCE_DIR}/src2"
python: 'sub-module' for binding sources and documentation meta information
2017-12-10 02:54:52 +08:00
"${OPENCV_PYTHON_BINDINGS_DIR}"
python: add special targets gen_opencv_python2(3)
2017-09-05 23:28:26 +08:00
)
python: 'sub-module' for binding sources and documentation meta information
2017-12-10 02:54:52 +08:00
# 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()
Adding of user-defined type conversions for python bindings inside module directories Adding of destructor and placement new constructors for classes wrapped with CV_EXPORTS_W_SIMPLE macro
2016-08-07 00:46:17 +08:00
ocv_add_library(${the_module} MODULE ${PYTHON_SOURCE_DIR}/src2/cv2.cpp ${cv2_generated_hdrs} ${opencv_userdef_hdrs} ${cv2_custom_hdr})
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
2018-06-07 17:32:48 +08:00
if(TARGET gen_opencv_python_source)
add_dependencies(${the_module} gen_opencv_python_source)
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
Limited API support for Python3
2019-03-21 15:45:02 +08:00
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"
${PYTHON}_LIBRARIES
"${${PYTHON}_LIBRARIES}")
endif()
endif()
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
if(APPLE)
set_target_properties(${the_module} PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
elseif(WIN32 OR OPENCV_FORCE_PYTHON_LIBS)
if(${PYTHON}_DEBUG_LIBRARIES AND NOT ${PYTHON}_LIBRARIES MATCHES "optimized.*debug")
Merge pull request #16150 from alalek:cmake_avoid_deprecated_link_private * cmake: avoid deprecated LINK_PRIVATE/LINK_PUBLIC see CMP0023 (CMake 2.8.12+) * cmake: fix 3rdparty list - don't include OpenCV modules
2019-12-13 22:52:40 +08:00
ocv_target_link_libraries(${the_module} PRIVATE debug ${${PYTHON}_DEBUG_LIBRARIES} optimized ${${PYTHON}_LIBRARIES})
Don't explicitly link Python on OS X Explicitly linking to a Python framework on OS X prevents modules from being built against one Python (i.e. system python) and imported from another (i.e. Homebrew python); the interpreter segfaults if there's a linkage to a foreign Python. Building the module with `-undefined dynamic_lookup` instead of an explicit link allows the symbols to be resolved at load time from a compatible python.
2015-03-24 14:36:46 +08:00
else()
Merge pull request #16150 from alalek:cmake_avoid_deprecated_link_private * cmake: avoid deprecated LINK_PRIVATE/LINK_PUBLIC see CMP0023 (CMake 2.8.12+) * cmake: fix 3rdparty list - don't include OpenCV modules
2019-12-13 22:52:40 +08:00
ocv_target_link_libraries(${the_module} PRIVATE ${${PYTHON}_LIBRARIES})
Don't explicitly link Python on OS X Explicitly linking to a Python framework on OS X prevents modules from being built against one Python (i.e. system python) and imported from another (i.e. Homebrew python); the interpreter segfaults if there's a linkage to a foreign Python. Building the module with `-undefined dynamic_lookup` instead of an explicit link allows the symbols to be resolved at load time from a compatible python.
2015-03-24 14:36:46 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
endif()
python: 'sub-module' for binding sources and documentation meta information
2017-12-10 02:54:52 +08:00
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
2018-06-07 17:32:48 +08:00
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()
Merge pull request #16150 from alalek:cmake_avoid_deprecated_link_private * cmake: avoid deprecated LINK_PRIVATE/LINK_PUBLIC see CMP0023 (CMake 2.8.12+) * cmake: fix 3rdparty list - don't include OpenCV modules
2019-12-13 22:52:40 +08:00
ocv_target_link_libraries(${the_module} PRIVATE ${deps})
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
if(DEFINED ${PYTHON}_CVPY_SUFFIX)
set(CVPY_SUFFIX "${${PYTHON}_CVPY_SUFFIX}")
else()
python: eliminate DeprecationWarning: SO -> EXT_SUFFIX - https://python.readthedocs.io/en/stable/whatsnew/3.4.html - The `sysconfig` key `SO` is deprecated, it has been replaced by `EXT_SUFFIX`
2018-10-25 11:47:59 +08:00
set(__python_ext_suffix_var "EXT_SUFFIX")
if("${${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('${__python_ext_suffix_var}'))"
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
RESULT_VARIABLE PYTHON_CVPY_PROCESS
OUTPUT_VARIABLE CVPY_SUFFIX
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(NOT PYTHON_CVPY_PROCESS EQUAL 0)
set(CVPY_SUFFIX ".so")
endif()
Limited API support for Python3
2019-03-21 15:45:02 +08:00
if(${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()
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
ocv_update(OPENCV_PYTHON_EXTENSION_BUILD_PATH "${LIBRARY_OUTPUT_PATH}/${MODULE_INSTALL_SUBDIR}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
set_target_properties(${the_module} PROPERTIES
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
LIBRARY_OUTPUT_DIRECTORY "${OPENCV_PYTHON_EXTENSION_BUILD_PATH}"
cmake: fix cv2.lib conflict for python2/3 bindings (MSVS)
2016-02-26 22:08:07 +08:00
ARCHIVE_OUTPUT_NAME ${the_module} # prevent name conflict for python2/3 outputs
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
PREFIX ""
OUTPUT_NAME cv2
SUFFIX ${CVPY_SUFFIX})
if(ENABLE_SOLUTION_FOLDERS)
set_target_properties(${the_module} PROPERTIES FOLDER "bindings")
endif()
if(MSVC)
Merge branch 'master' into python2and3
2014-08-07 13:01:11 +08:00
add_definitions(-DCVAPI_EXPORTS)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
endif()
cmake: avoid amending of CMAKE_COMPILER_IS_[GNUCXX|CLANGCXX|CCACHE] vars - Recommended compiler checks: - GCC: CV_GCC - Clang: CV_CLANG - fixed problem with CMAKE_CXX_COMPILER_ID=Clang/AppleClang mess on MacOSX Details: cmake --help-policy CMP0025 - do not declare Clang as GCC compiler
2018-03-26 19:30:49 +08:00
if((CV_GCC OR CV_CLANG) AND NOT ENABLE_NOISY_WARNINGS)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
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 "${CMAKE_CXX_FLAGS}")
endif()
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
2018-06-07 17:32:48 +08:00
if(MSVC)
ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4996)
else()
ocv_warnings_disable(CMAKE_CXX_FLAGS
-Wdeprecated-declarations
-Woverloaded-virtual -Wunused-private-field
-Wundef # accurate guard via #pragma doesn't work (C++ preprocessor doesn't handle #pragma)
)
endif()
eliminate compiler warnings
2016-10-07 23:49:52 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(MSVC AND NOT BUILD_SHARED_LIBS)
set_target_properties(${the_module} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:atlthunk.lib /NODEFAULTLIB:atlsd.lib /DEBUG")
endif()
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
if(MSVC AND NOT ${PYTHON}_DEBUG_LIBRARIES)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
set(PYTHON_INSTALL_CONFIGURATIONS CONFIGURATIONS Release)
else()
set(PYTHON_INSTALL_CONFIGURATIONS "")
endif()
if(WIN32)
set(PYTHON_INSTALL_ARCHIVE "")
else()
cmake: python, allow dynamic symbols lookup from libpython.so
2016-07-07 00:53:32 +08:00
set(PYTHON_INSTALL_ARCHIVE ARCHIVE DESTINATION ${${PYTHON}_PACKAGES_PATH} COMPONENT python)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
endif()
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
set(__python_loader_subdir "")
if(NOT OPENCV_SKIP_PYTHON_LOADER)
set(__python_loader_subdir "cv2/")
cmake: python installation Also fixes issue with empty PYTHON_PACKAGES_PATH (cross-compilation mode)
2016-10-30 04:03:41 +08:00
endif()
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
cmake: fix python install paths
2018-12-17 18:39:26 +08:00
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()
python: update CMake install rules
2019-03-15 18:11:00 +08:00
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()
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
else()
ocv_assert(DEFINED OPENCV_PYTHON_INSTALL_PATH)
set(__python_binary_install_path "${OPENCV_PYTHON_INSTALL_PATH}/${__python_loader_subdir}python-${${PYTHON}_VERSION_MAJOR}.${${PYTHON}_VERSION_MINOR}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
endif()
cmake: python installation Also fixes issue with empty PYTHON_PACKAGES_PATH (cross-compilation mode)
2016-10-30 04:03:41 +08:00
install(TARGETS ${the_module}
${PYTHON_INSTALL_CONFIGURATIONS}
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
RUNTIME DESTINATION "${__python_binary_install_path}" COMPONENT python
LIBRARY DESTINATION "${__python_binary_install_path}" COMPONENT python
cmake: python installation Also fixes issue with empty PYTHON_PACKAGES_PATH (cross-compilation mode)
2016-10-30 04:03:41 +08:00
${PYTHON_INSTALL_ARCHIVE}
)
python: update install paths - don't require "OPENCV_PYTHON{2,3}_INSTALL_PATH" if OPENCV_SKIP_PYTHON_LOADER=ON - avoid unnecessary relative paths in generated config-X.Y.py
2018-11-23 05:06:33 +08:00
set(__INSTALL_PATH_${PYTHON} "${__python_binary_install_path}" CACHE INTERNAL "") # CMake status
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
if(NOT OPENCV_SKIP_PYTHON_LOADER)
ocv_assert(DEFINED OPENCV_PYTHON_INSTALL_PATH)
if(OpenCV_FOUND)
set(__loader_path "${OpenCV_BINARY_DIR}/python_loader")
else()
set(__loader_path "${CMAKE_BINARY_DIR}/python_loader")
endif()
set(__python_loader_install_tmp_path "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/install/python_loader/")
python: update install paths - don't require "OPENCV_PYTHON{2,3}_INSTALL_PATH" if OPENCV_SKIP_PYTHON_LOADER=ON - avoid unnecessary relative paths in generated config-X.Y.py
2018-11-23 05:06:33 +08:00
set(OpenCV_PYTHON_LOADER_FULL_INSTALL_PATH "${CMAKE_INSTALL_PREFIX}/${OPENCV_PYTHON_INSTALL_PATH}/cv2")
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
if(IS_ABSOLUTE "${OPENCV_PYTHON_INSTALL_PATH}")
python: update install paths - don't require "OPENCV_PYTHON{2,3}_INSTALL_PATH" if OPENCV_SKIP_PYTHON_LOADER=ON - avoid unnecessary relative paths in generated config-X.Y.py
2018-11-23 05:06:33 +08:00
set(CMAKE_PYTHON_EXTENSION_INSTALL_PATH_BASE "'${OPENCV_PYTHON_INSTALL_PATH}/cv2'")
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
else()
python: update install paths - don't require "OPENCV_PYTHON{2,3}_INSTALL_PATH" if OPENCV_SKIP_PYTHON_LOADER=ON - avoid unnecessary relative paths in generated config-X.Y.py
2018-11-23 05:06:33 +08:00
set(CMAKE_PYTHON_EXTENSION_INSTALL_PATH_BASE "LOADER_DIR")
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
2018-10-28 21:32:27 +08:00
endif()
if(DEFINED ${PYTHON}_VERSION_MINOR)
set(__target_config "config-${${PYTHON}_VERSION_MAJOR}.${${PYTHON}_VERSION_MINOR}.py")
else()
set(__target_config "config-${${PYTHON}_VERSION_MAJOR}.py")
endif()
if(CMAKE_GENERATOR MATCHES "Visual Studio")
set(CMAKE_PYTHON_EXTENSION_PATH "'${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 "'${__python_binary_install_path}'")
else()
python: update install paths - don't require "OPENCV_PYTHON{2,3}_INSTALL_PATH" if OPENCV_SKIP_PYTHON_LOADER=ON - avoid unnecessary relative paths in generated config-X.Y.py
2018-11-23 05:06:33 +08:00
file(RELATIVE_PATH OpenCV_PYTHON_BINARY_RELATIVE_INSTALL_PATH "${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}')")
python: bindings loader package Configures and loads OpenCV bindings extension including 3rdparty dependencies Based on running Python specify: - configure PYTHON_PATH (via "sys.path") - configure LD_LIBRARY_PATH / PATH
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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)
endif() # NOT OPENCV_SKIP_PYTHON_LOADER
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
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unset(PYTHON_SRC_DIR)
unset(PYTHON_CVPY_PROCESS)
unset(CVPY_SUFFIX)
unset(PYTHON_INSTALL_CONFIGURATIONS)
unset(PYTHON_INSTALL_ARCHIVE)
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