# ---------------------------------------------------------------------------- # CMake file for js support # ---------------------------------------------------------------------------- if(OPENCV_INITIAL_PASS) # generator for Objective-C source code and documentation signatures add_subdirectory(generator) endif() if(NOT BUILD_opencv_js) # should be enabled explicitly (by build_js.py script) return() endif() set(the_description "The JavaScript(JS) bindings") set(OPENCV_JS "opencv.js") set(JS_HELPER "${CMAKE_CURRENT_SOURCE_DIR}/src/helpers.js") find_path(EMSCRIPTEN_INCLUDE_DIR emscripten/bind.h PATHS ENV EMSCRIPTEN_ROOT PATH_SUFFIXES system/include include DOC "Location of Emscripten SDK") if(NOT EMSCRIPTEN_INCLUDE_DIR OR NOT PYTHON_DEFAULT_AVAILABLE) set(DISABLE_MSG "Module 'js' disabled because the following dependencies are not found:") if(NOT EMSCRIPTEN_INCLUDE_DIR) set(DISABLE_MSG "${DISABLE_MSG} Emscripten") endif() if(NOT PYTHON_DEFAULT_AVAILABLE) set(DISABLE_MSG "${DISABLE_MSG} Python") endif() message(STATUS ${DISABLE_MSG}) ocv_module_disable(js) endif() ocv_add_module(js BINDINGS PRIVATE_REQUIRED opencv_js_bindings_generator) ocv_module_include_directories(${EMSCRIPTEN_INCLUDE_DIR}) add_definitions("-std=c++11") set(deps ${OPENCV_MODULE_${the_module}_DEPS}) list(REMOVE_ITEM deps opencv_js_bindings_generator) # don't add dummy module link_libraries(${deps}) set(bindings_cpp "${OPENCV_JS_BINDINGS_DIR}/gen/bindings.cpp") set_source_files_properties(${bindings_cpp} PROPERTIES GENERATED TRUE) OCV_OPTION(BUILD_WASM_INTRIN_TESTS "Build WASM intrin tests" OFF ) if(BUILD_WASM_INTRIN_TESTS) add_definitions(-DTEST_WASM_INTRIN) ocv_module_include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../ts/include") ocv_module_include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../imgcodecs/include") ocv_module_include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../videoio/include") ocv_module_include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../highgui/include") ocv_add_executable(${the_module} ${bindings_cpp} "${CMAKE_CURRENT_SOURCE_DIR}/../ts/src/ts_gtest.cpp") else() ocv_add_executable(${the_module} ${bindings_cpp}) endif() add_dependencies(${the_module} gen_opencv_js_source) set(COMPILE_FLAGS "") if(NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC") set(COMPILE_FLAGS "${COMPILE_FLAGS} -Wno-missing-prototypes") endif() if(COMPILE_FLAGS) set_target_properties(${the_module} PROPERTIES COMPILE_FLAGS ${COMPILE_FLAGS}) endif() set(EMSCRIPTEN_LINK_FLAGS "${EMSCRIPTEN_LINK_FLAGS} -s TOTAL_MEMORY=128MB -s WASM_MEM_MAX=1GB -s ALLOW_MEMORY_GROWTH=1") set(EMSCRIPTEN_LINK_FLAGS "${EMSCRIPTEN_LINK_FLAGS} -s MODULARIZE=1") set(EMSCRIPTEN_LINK_FLAGS "${EMSCRIPTEN_LINK_FLAGS} -s EXPORT_NAME=\"'cv'\" -s DEMANGLE_SUPPORT=1") set(EMSCRIPTEN_LINK_FLAGS "${EMSCRIPTEN_LINK_FLAGS} -s FORCE_FILESYSTEM=1 --use-preload-plugins --bind --post-js ${JS_HELPER} ${COMPILE_FLAGS}") set_target_properties(${the_module} PROPERTIES LINK_FLAGS "${EMSCRIPTEN_LINK_FLAGS}") # add UMD wrapper set(MODULE_JS_PATH "${OpenCV_BINARY_DIR}/bin/${the_module}.js") set(OCV_JS_PATH "${OpenCV_BINARY_DIR}/bin/${OPENCV_JS}") add_custom_command( OUTPUT ${OCV_JS_PATH} COMMAND ${PYTHON_DEFAULT_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/src/make_umd.py" ${MODULE_JS_PATH} "${OCV_JS_PATH}" DEPENDS ${the_module} DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/src/make_umd.py") add_custom_target(${OPENCV_JS} ALL DEPENDS ${OCV_JS_PATH} DEPENDS ${the_module}) # test set(opencv_test_js_bin_dir "${EXECUTABLE_OUTPUT_PATH}") set(test_dir ${CMAKE_CURRENT_SOURCE_DIR}/test) set(opencv_test_js_file_deps "") # message(STATUS "${opencv_test_js_bin_dir}") # make sure the build directory exists file(MAKE_DIRECTORY "${opencv_test_js_bin_dir}") # gather and copy specific files for js test file(GLOB_RECURSE test_files RELATIVE "${test_dir}" "${test_dir}/*") foreach(f ${test_files}) # message(STATUS "copy ${test_dir}/${f} ${opencv_test_js_bin_dir}/${f}") add_custom_command(OUTPUT "${opencv_test_js_bin_dir}/${f}" COMMAND ${CMAKE_COMMAND} -E copy_if_different "${test_dir}/${f}" "${opencv_test_js_bin_dir}/${f}" DEPENDS "${test_dir}/${f}" COMMENT "Copying ${f}" ) list(APPEND opencv_test_js_file_deps "${test_dir}/${f}" "${opencv_test_js_bin_dir}/${f}") endforeach() add_custom_target(${PROJECT_NAME}_test DEPENDS ${OCV_JS_PATH} ${opencv_test_js_file_deps}) # perf set(opencv_perf_js_bin_dir "${EXECUTABLE_OUTPUT_PATH}/perf") set(perf_dir ${CMAKE_CURRENT_SOURCE_DIR}/perf) set(opencv_perf_js_file_deps "") # make sure the build directory exists file(MAKE_DIRECTORY "${opencv_perf_js_bin_dir}") # gather and copy specific files for js perf file(GLOB_RECURSE perf_files RELATIVE "${perf_dir}" "${perf_dir}/*") foreach(f ${perf_files}) add_custom_command(OUTPUT "${opencv_perf_js_bin_dir}/${f}" COMMAND ${CMAKE_COMMAND} -E copy_if_different "${perf_dir}/${f}" "${opencv_perf_js_bin_dir}/${f}" DEPENDS "${perf_dir}/${f}" COMMENT "Copying ${f}" ) list(APPEND opencv_perf_js_file_deps "${perf_dir}/${f}" "${opencv_perf_js_bin_dir}/${f}") endforeach() add_custom_target(${PROJECT_NAME}_perf DEPENDS ${OCV_JS_PATH} ${opencv_perf_js_file_deps}) #loader set(opencv_loader_js_bin_dir "${EXECUTABLE_OUTPUT_PATH}") set(loader_dir ${CMAKE_CURRENT_SOURCE_DIR}/src) set(opencv_loader_js_file_deps "") # make sure the build directory exists file(MAKE_DIRECTORY "${opencv_loader_js_bin_dir}") add_custom_command( TARGET ${PROJECT_NAME} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy ${loader_dir}/loader.js ${opencv_loader_js_bin_dir}/loader.js) list(APPEND opencv_loader_js_file_deps "${loader_dir}/loader.js" "${opencv_loader_js_bin_dir}/loader.js") add_custom_target(${PROJECT_NAME}_loader ALL DEPENDS ${OCV_JS_PATH} ${opencv_loader_js_file_deps}) add_custom_target(opencv_test_js ALL DEPENDS opencv_js_test opencv_js_perf opencv_js_loader)