opencv/modules/objc/generator/CMakeLists.txt
Giles Payne 3d9cb5329c
Merge pull request #24136 from komakai:visionos_support
Add experimental support for Apple VisionOS platform #24136

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch

This is dependent on cmake support for VisionOs which is currently in progress.
Creating PR now to test that there are no regressions in iOS and macOS builds
2023-12-20 15:35:10 +03:00

131 lines
4.8 KiB
CMake

set(MODULE_NAME "objc_bindings_generator")
set(OPENCV_MODULE_IS_PART_OF_WORLD FALSE)
ocv_add_module(${MODULE_NAME} INTERNAL opencv_core opencv_imgproc)
#set(OPENCV_OBJC_SIGNATURES_FILE "${CMAKE_CURRENT_BINARY_DIR}/opencv_objc_signatures.json" CACHE INTERNAL "")
set(OPENCV_OBJC_BINDINGS_DIR "${CMAKE_CURRENT_BINARY_DIR}" CACHE INTERNAL "")
file(REMOVE_RECURSE "${OPENCV_OBJC_BINDINGS_DIR}/osx")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source_osx") # force re-run after CMake
file(REMOVE_RECURSE "${OPENCV_OBJC_BINDINGS_DIR}/ios")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source_ios") # force re-run after CMake
file(REMOVE_RECURSE "${OPENCV_OBJC_BINDINGS_DIR}/visionos")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source_visionos") # force re-run after CMake
# This file is included from a subdirectory
set(OBJC_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/..")
include(${OBJC_SOURCE_DIR}/common.cmake) # fill OPENCV_OBJC_MODULES
# common files
file(GLOB_RECURSE deps "${CMAKE_CURRENT_SOURCE_DIR}/templates/*")
set(__modules_config "") # list of OpenCV modules
foreach(m ${OPENCV_OBJC_MODULES})
set(module_objc_dir "${OPENCV_MODULE_${m}_LOCATION}/misc/objc")
list(APPEND deps ${OPENCV_MODULE_${m}_HEADERS})
file(GLOB_RECURSE misc_files "${module_objc_dir}/*")
list(APPEND deps ${misc_files})
string(REGEX REPLACE "^opencv_" "" m_ "${m}")
if(__modules_config)
set(__modules_config "${__modules_config},\n")
endif()
file(RELATIVE_PATH rel_path "${OpenCV_SOURCE_DIR}" "${OPENCV_MODULE_${m}_LOCATION}")
set(__modules_config "${__modules_config} { \"name\": \"${m_}\", \"location\": \"${rel_path}\" }")
endforeach(m)
if(HAVE_opencv_objc)
set(__objc_build_dir "\"objc_build_dir\": \"${CMAKE_CURRENT_BINARY_DIR}/../objc\",")
endif()
set(CONFIG_FILE "${CMAKE_CURRENT_BINARY_DIR}/gen_objc.json")
set(__config_str
"{
\"rootdir\": \"${OpenCV_SOURCE_DIR}\",
${__objc_build_dir}
\"modules\": [
${__modules_config}
]
}
")
#TODO: ocv_update_file("${CONFIG_FILE}" "${__config_str}" ON_CHANGE_REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source")
if(EXISTS "${CONFIG_FILE}")
file(READ "${CONFIG_FILE}" __content)
else()
set(__content "")
endif()
if(NOT "${__content}" STREQUAL "${__config_str}")
file(WRITE "${CONFIG_FILE}" "${__config_str}")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source")
endif()
unset(__config_str)
set(objc_generated_files
# "${OPENCV_OBJC_SIGNATURES_FILE}"
)
string(REPLACE "opencv_" "" MODULES "${OPENCV_OBJC_MODULES}")
if(NOT DEFINED OPENCV_OBJC_TARGET AND APPLE_FRAMEWORK)
if(IOS)
set(OPENCV_OBJC_TARGET "ios")
elseif(XROS)
set(OPENCV_OBJC_TARGET "visionos")
else()
set(OPENCV_OBJC_TARGET "osx")
endif()
endif()
if(NOT DEFINED OPENCV_OBJC_FRAMEWORK_NAME)
if(DEFINED FRAMEWORK_NAME)
set(OPENCV_OBJC_FRAMEWORK_NAME "${FRAMEWORK_NAME}")
else()
set(OPENCV_OBJC_FRAMEWORK_NAME "opencv2")
endif()
endif()
set(objc_generated_targets "")
macro(ocv_add_objc_generated_target TARGET)
set(objc_${TARGET}_generated_output_dependecy "${OPENCV_DEPHELPER}/gen_opencv_objc_source_${TARGET}")
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}")
add_custom_command(
OUTPUT ${objc_generated_files} "${objc_${TARGET}_generated_output_dependecy}"
COMMAND ${PYTHON_DEFAULT_EXECUTABLE} "${OBJC_SOURCE_DIR}/generator/gen_objc.py"
-p "${OBJC_SOURCE_DIR}/../python/src2/gen2.py"
-c "${CONFIG_FILE}"
-t "${TARGET}"
-f "${OPENCV_OBJC_FRAMEWORK_NAME}"
COMMAND ${CMAKE_COMMAND} -E touch "${objc_${TARGET}_generated_output_dependecy}"
WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}"
DEPENDS "${OpenCV_SOURCE_DIR}/modules/objc/generator/gen_objc.py"
"${OpenCV_SOURCE_DIR}/modules/python/src2/gen2.py"
"${OpenCV_SOURCE_DIR}/modules/python/src2/hdr_parser.py"
# don't, result of file(WRITE): "${CMAKE_CURRENT_BINARY_DIR}/gen_objc.json"
${deps}
# not allowed (file(WRITE) result): "${CONFIG_FILE}"
COMMENT "Generate files for Objective-C bindings (${TARGET})"
)
add_custom_target(gen_opencv_objc_source_${TARGET}
# excluded from all: ALL
DEPENDS ${objc_generated_files} ${objc_${TARGET}_generated_output_dependecy}
SOURCES "${OBJC_SOURCE_DIR}/generator/gen_objc.py"
"${OBJC_SOURCE_DIR}/generator/templates/cmakelists.template"
"${CMAKE_CURRENT_BINARY_DIR}/gen_objc.json"
)
list(APPEND objc_generated_targets gen_opencv_objc_source_${TARGET})
endmacro()
if(OPENCV_OBJC_TARGET)
ocv_add_objc_generated_target(${OPENCV_OBJC_TARGET})
else()
ocv_add_objc_generated_target(osx)
ocv_add_objc_generated_target(ios)
ocv_add_objc_generated_target(visionos)
endif()
add_custom_target(gen_opencv_objc_source
# excluded from all: ALL
DEPENDS ${objc_generated_targets}
)