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100 lines
3.4 KiB
CMake
100 lines
3.4 KiB
CMake
#=============================================
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# build with OpenCV
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function(ocv_create_builtin_videoio_plugin name target videoio_src_file)
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if(NOT TARGET ${target})
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message(FATAL_ERROR "${target} does not exist!")
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endif()
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if(NOT OpenCV_SOURCE_DIR)
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message(FATAL_ERROR "OpenCV_SOURCE_DIR must be set to build the plugin!")
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endif()
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add_library(${name} MODULE
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"${CMAKE_CURRENT_LIST_DIR}/src/${videoio_src_file}"
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"${CMAKE_CURRENT_LIST_DIR}/src/plugin_api.cpp")
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target_include_directories(${name} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}")
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target_compile_definitions(${name} PRIVATE BUILD_PLUGIN)
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target_link_libraries(${name} PRIVATE ${target})
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foreach(mod opencv_videoio opencv_core opencv_imgproc opencv_imgcodecs)
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target_link_libraries(${name} PRIVATE ${mod})
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target_include_directories(${name} PRIVATE "${OPENCV_MODULE_${mod}_LOCATION}/include")
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endforeach()
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set_target_properties(${name} PROPERTIES
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CXX_STANDARD 11
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CXX_VISIBILITY_PRESET hidden
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)
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install(TARGETS ${name} LIBRARY DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT plugins OPTIONAL)
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endfunction()
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#=============================================
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# standalone build
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function(ocv_create_videoio_plugin default_name target target_desc videoio_src_file)
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set(OPENCV_PLUGIN_NAME ${default_name} CACHE STRING "")
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set(OPENCV_PLUGIN_DESTINATION "" CACHE PATH "")
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project(${OPENCV_PLUGIN_NAME} LANGUAGES CXX)
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set(BUILD_SHARED_LIBS ON CACHE BOOL "")
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if(NOT BUILD_SHARED_LIBS)
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message(FATAL_ERROR "Static plugin build does not make sense")
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endif()
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if(NOT OpenCV_SOURCE_DIR)
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message(FATAL_ERROR "OpenCV_SOURCE_DIR must be set to build the plugin!")
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endif()
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include("${OpenCV_SOURCE_DIR}/modules/videoio/cmake/init.cmake")
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if(NOT TARGET ${target})
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message(FATAL_ERROR "${target_desc} was not found!")
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endif()
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set(modules_ROOT "${CMAKE_CURRENT_LIST_DIR}/../../..")
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set(videoio_ROOT "${modules_ROOT}/videoio")
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set(core_ROOT "${modules_ROOT}/core")
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set(imgproc_ROOT "${modules_ROOT}/imgproc")
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set(imgcodecs_ROOT "${modules_ROOT}/imgcodecs")
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add_library(${OPENCV_PLUGIN_NAME} MODULE "${videoio_ROOT}/src/${videoio_src_file}" "${videoio_ROOT}/src/plugin_api.cpp")
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target_include_directories(${OPENCV_PLUGIN_NAME} PRIVATE
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"${CMAKE_CURRENT_BINARY_DIR}"
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"${videoio_ROOT}/src"
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"${videoio_ROOT}/include"
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"${core_ROOT}/include"
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"${imgproc_ROOT}/include"
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"${imgcodecs_ROOT}/include"
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)
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target_compile_definitions(${OPENCV_PLUGIN_NAME} PRIVATE BUILD_PLUGIN)
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# Fixes for build
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target_compile_definitions(${OPENCV_PLUGIN_NAME} PRIVATE __OPENCV_BUILD)
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/cvconfig.h" "#pragma once")
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/cv_cpu_config.h" "#pragma once")
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/opencv2/opencv_modules.hpp" "#pragma once")
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target_link_libraries(${OPENCV_PLUGIN_NAME} PRIVATE ${target})
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set_target_properties(${OPENCV_PLUGIN_NAME} PROPERTIES
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CXX_STANDARD 11
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CXX_VISIBILITY_PRESET hidden
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)
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# Hack for Windows
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if(WIN32)
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find_package(OpenCV REQUIRED core imgproc videoio)
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target_link_libraries(${OPENCV_PLUGIN_NAME} ${OpenCV_LIBS})
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endif()
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if(OPENCV_PLUGIN_DESTINATION)
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set_target_properties(${OPENCV_PLUGIN_NAME} PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${OPENCV_PLUGIN_DESTINATION}")
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message(STATUS "Output destination: ${OPENCV_PLUGIN_DESTINATION}")
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endif()
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message(STATUS "Library name: ${OPENCV_PLUGIN_NAME}")
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endfunction()
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