Open Source Computer Vision Library https://opencv.org/
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if(EXISTS "${ANDROID_EXECUTABLE}")
set(ANDROID_SDK_DETECT_QUIET TRUE)
endif()
# fixup for https://github.com/android-ndk/ndk/issues/596
if(DEFINED ANDROID_NDK_REVISION AND ANDROID_NDK_REVISION MATCHES "(1[56])([0-9]+)\\.([^\n]+)\n")
set(ANDROID_NDK_REVISION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}")
set(ANDROID_NDK_REVISION "${ANDROID_NDK_REVISION}" CACHE INTERNAL "Android NDK revision")
endif()
# fixup -g option: https://github.com/opencv/opencv/issues/8460#issuecomment-434249750
if(INSTALL_CREATE_DISTRIB
AND (NOT BUILD_WITH_DEBUG_INFO AND NOT CMAKE_BUILD_TYPE MATCHES "Debug")
AND NOT OPENCV_SKIP_ANDROID_G_OPTION_FIX
)
if(" ${CMAKE_CXX_FLAGS} " MATCHES " -g ")
message(STATUS "Android: fixup -g compiler option from Android toolchain")
endif()
string(REPLACE " -g " " " CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} ")
string(REPLACE " -g " " " CMAKE_C_FLAGS " ${CMAKE_C_FLAGS} ")
string(REPLACE " -g " " " CMAKE_ASM_FLAGS " ${CMAKE_ASM_FLAGS} ")
if(NOT " ${CMAKE_CXX_FLAGS_DEBUG}" MATCHES " -g")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g")
endif()
if(NOT " ${CMAKE_C_FLAGS_DEBUG}" MATCHES " -g")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
endif()
endif()
# https://developer.android.com/studio/command-line/variables.html
ocv_check_environment_variables(ANDROID_SDK_ROOT ANDROID_HOME ANDROID_SDK)
set(__msg_BUILD_ANDROID_PROJECTS "Use BUILD_ANDROID_PROJECTS=OFF to prepare Android project files without building them")
macro(ocv_detect_android_sdk)
if(NOT DEFINED ANDROID_SDK)
if(DEFINED ANDROID_SDK AND EXISTS "${ANDROID_SDK}")
set(ANDROID_SDK "${ANDROID_SDK}" CACHE INTERNAL "Android SDK path")
elseif(DEFINED ANDROID_HOME AND EXISTS "${ANDROID_HOME}")
set(ANDROID_SDK "${ANDROID_HOME}" CACHE INTERNAL "Android SDK path")
elseif(DEFINED ANDROID_SDK_ROOT AND EXISTS "${ANDROID_SDK_ROOT}")
set(ANDROID_SDK "${ANDROID_SDK_ROOT}" CACHE INTERNAL "Android SDK path")
endif()
if(DEFINED ANDROID_SDK)
message(STATUS "Android SDK: using location: ${ANDROID_SDK}")
endif()
endif()
if(NOT DEFINED ANDROID_SDK)
message(FATAL_ERROR "Android SDK: specify path to Android SDK via ANDROID_SDK_ROOT / ANDROID_HOME / ANDROID_SDK variables")
endif()
if(NOT EXISTS "${ANDROID_SDK}")
message(FATAL_ERROR "Android SDK: specified path doesn't exist: ${ANDROID_SDK}")
endif()
endmacro()
macro(ocv_detect_android_sdk_tools)
# https://developer.android.com/studio/releases/sdk-tools.html
if(NOT DEFINED ANDROID_SDK_TOOLS)
if(DEFINED ANDROID_SDK AND EXISTS "${ANDROID_SDK}/tools")
set(ANDROID_SDK_TOOLS "${ANDROID_SDK}/tools" CACHE INTERNAL "Android SDK Tools path")
endif()
endif()
if(NOT DEFINED ANDROID_SDK_TOOLS)
message(FATAL_ERROR "Android SDK Tools: can't automatically find Android SDK Tools. Specify path via ANDROID_SDK_TOOLS variable")
endif()
if(NOT EXISTS "${ANDROID_SDK_TOOLS}")
message(FATAL_ERROR "Android SDK Tools: specified path doesn't exist: ${ANDROID_SDK_TOOLS}")
endif()
if(NOT DEFINED ANDROID_SDK_TOOLS_VERSION)
ocv_parse_properties_file("${ANDROID_SDK_TOOLS}/source.properties"
ANDROID_TOOLS CACHE Pkg_Revision
MSG_PREFIX "Android SDK Tools: "
)
if(NOT DEFINED ANDROID_TOOLS_Pkg_Revision)
message(FATAL_ERROR "Android SDK Tools: Can't determine package version: ANDROID_SDK_TOOLS=${ANDROID_SDK_TOOLS}\n"
"Check specified parameters or force version via 'ANDROID_SDK_TOOLS_VERSION' variable.\n"
"${__msg_BUILD_ANDROID_PROJECTS}")
elseif(NOT ANDROID_SDK_DETECT_QUIET)
set(__info "")
if(DEFINED ANDROID_TOOLS_Pkg_Desc)
set(__info " (description: '${ANDROID_TOOLS_Pkg_Desc}')")
endif()
message(STATUS "Android SDK Tools: ver. ${ANDROID_TOOLS_Pkg_Revision}${__info}")
endif()
set(ANDROID_SDK_TOOLS_VERSION "${ANDROID_TOOLS_Pkg_Revision}" CACHE INTERNAL "Android SDK Tools version")
endif()
if(NOT DEFINED ANDROID_TOOLS_Pkg_Revision)
set(ANDROID_TOOLS_Pkg_Revision "${ANDROID_SDK_TOOLS_VERSION}" CACHE INTERNAL "Android SDK Tools version (deprecated)")
endif()
set(ANDROID_SDK_TOOLS_PATH "${ANDROID_SDK_TOOLS}" CACHE INTERNAL "Android SDK Tools path (deprecated)")
endmacro() # ocv_detect_android_sdk_tools
macro(ocv_detect_android_sdk_build_tools)
# https://developer.android.com/studio/releases/build-tools.html
if(NOT DEFINED ANDROID_SDK_BUILD_TOOLS_VERSION)
if(NOT DEFINED ANDROID_SDK_BUILD_TOOLS)
set(__search_dir ${ANDROID_SDK}/build-tools)
if(NOT EXISTS "${__search_dir}")
message(FATAL_ERROR "Android SDK Build Tools: directory doesn't exist: ${__search_dir} "
"${__msg_BUILD_ANDROID_PROJECTS}")
endif()
if(NOT DEFINED ANDROID_SDK_BUILD_TOOLS_SUBDIR)
file(GLOB __found RELATIVE "${__search_dir}" ${__search_dir}/*)
set(__dirlist "")
set(__selected 0)
set(__versions "")
foreach(d ${__found})
if(IS_DIRECTORY "${__search_dir}/${d}")
list(APPEND __dirlist ${d})
if(d MATCHES "[0-9]+(\\.[0-9]+)*")
list(APPEND __versions "${d}")
endif()
if(__selected VERSION_LESS d)
set(__selected "${d}")
endif()
endif()
endforeach()
if(__selected VERSION_GREATER 0)
set(ANDROID_SDK_BUILD_TOOLS_SUBDIR "${__selected}")
elseif(__dirlist)
set(__versions "")
foreach(d ${__dirlist})
if(EXISTS "${__search_dir}/${d}/source.properties")
ocv_clear_vars(ANDROID_BUILD_TOOLS_Pkg_Revision)
ocv_parse_properties_file("${__search_dir}/${d}/source.properties"
ANDROID_BUILD_TOOLS
MSG_PREFIX "Android SDK Tools: "
)
if(DEFINED ANDROID_BUILD_TOOLS_Pkg_Revision)
list(APPEND __versions "${ANDROID_BUILD_TOOLS_Pkg_Revision}")
if(__selected VERSION_LESS ANDROID_BUILD_TOOLS_Pkg_Revision)
set(ANDROID_SDK_BUILD_TOOLS_SUBDIR "${d}")
set(__selected "${ANDROID_BUILD_TOOLS_Pkg_Revision}")
endif()
endif()
endif()
endforeach()
endif()
if(DEFINED ANDROID_SDK_BUILD_TOOLS_SUBDIR)
set(ANDROID_SDK_BUILD_TOOLS_VERSION "${__selected}" CACHE STRING "Android SDK Build Tools version")
set_property(CACHE ANDROID_SDK_BUILD_TOOLS_VERSION PROPERTY STRINGS ${__versions})
set(ANDROID_SDK_BUILD_TOOLS "${__search_dir}/${d}" CACHE INTERNAL "Android SDK Build Tools path")
message(STATUS "Android SDK Build Tools: ver. ${ANDROID_SDK_BUILD_TOOLS_VERSION} (subdir ${ANDROID_SDK_BUILD_TOOLS_SUBDIR} from ${__dirlist})")
else()
message(FATAL_ERROR "Android SDK Build Tools: autodetection failed. "
"Specify ANDROID_SDK_BUILD_TOOLS_VERSION / ANDROID_SDK_BUILD_TOOLS_SUBDIR / ANDROID_SDK_BUILD_TOOLS variable to bypass autodetection.\n"
"${__msg_BUILD_ANDROID_PROJECTS}")
endif()
endif()
else()
ocv_parse_properties_file("${ANDROID_SDK_BUILD_TOOLS}/source.properties"
ANDROID_BUILD_TOOLS
MSG_PREFIX "Android SDK Tools: "
)
if(NOT DEFINED ANDROID_BUILD_TOOLS_Pkg_Revision)
message(FATAL_ERROR "Android SDK Build Tools: Can't detect version: ANDROID_SDK_BUILD_TOOLS=${ANDROID_SDK_BUILD_TOOLS}\n"
"Specify ANDROID_SDK_BUILD_TOOLS_VERSION variable to bypass autodetection.\n"
"${__msg_BUILD_ANDROID_PROJECTS}")
else()
set(ANDROID_SDK_BUILD_TOOLS_VERSION "${ANDROID_BUILD_TOOLS_Pkg_Revision}" CACHE INTERNAL "Android SDK Build Tools version")
message(STATUS "Android SDK Build Tools: ver. ${ANDROID_SDK_BUILD_TOOLS_VERSION} (ANDROID_SDK_BUILD_TOOLS=${ANDROID_SDK_BUILD_TOOLS})")
endif()
endif() # ANDROID_SDK_BUILD_TOOLS
endif() # ANDROID_SDK_BUILD_TOOLS_VERSION
endmacro() # ocv_detect_android_sdk_build_tools
if(BUILD_ANDROID_PROJECTS)
ocv_detect_android_sdk()
ocv_detect_android_sdk_tools()
ocv_detect_android_sdk_build_tools()
if(ANDROID_SDK_TOOLS_VERSION VERSION_LESS 14)
message(FATAL_ERROR "Android SDK Tools: OpenCV requires Android SDK Tools revision 14 or newer.\n"
"${__msg_BUILD_ANDROID_PROJECTS}")
endif()
if(NOT ANDROID_SDK_TOOLS_VERSION VERSION_LESS 25.3.0)
message(STATUS "Android SDK Tools: Ant (Eclipse) builds are NOT supported by Android SDK")
ocv_update(ANDROID_PROJECTS_SUPPORT_ANT OFF)
if(NOT ANDROID_SDK_BUILD_TOOLS_VERSION VERSION_LESS 26.0.2)
# https://developer.android.com/studio/releases/gradle-plugin.html
message(STATUS "Android SDK Build Tools: Gradle 3.0.0+ builds support is available")
ocv_update(ANDROID_PROJECTS_SUPPORT_GRADLE ON)
endif()
else()
include(${CMAKE_CURRENT_LIST_DIR}/../OpenCVDetectApacheAnt.cmake)
if(ANT_EXECUTABLE AND NOT ANT_VERSION VERSION_LESS 1.7)
message(STATUS "Android SDK Tools: Ant (Eclipse) builds are supported")
ocv_update(ANDROID_PROJECTS_SUPPORT_ANT ON)
endif()
endif()
if(NOT DEFINED ANDROID_PROJECTS_BUILD_TYPE)
if(ANDROID_PROJECTS_SUPPORT_ANT)
ocv_update(ANDROID_PROJECTS_BUILD_TYPE "ANT")
elseif(ANDROID_PROJECTS_SUPPORT_GRADLE)
ocv_update(ANDROID_PROJECTS_BUILD_TYPE "GRADLE")
else()
message(FATAL_ERROR "Android SDK: Can't build Android projects as requested by BUILD_ANDROID_PROJECTS=ON variable.\n"
"${__msg_BUILD_ANDROID_PROJECTS}")
endif()
endif()
if(ANDROID_PROJECTS_BUILD_TYPE STREQUAL "ANT")
message(STATUS "Android SDK Tools: Prepare Android projects for using Ant build scripts (deprecated)")
elseif(ANDROID_PROJECTS_BUILD_TYPE STREQUAL "GRADLE")
message(STATUS "Android SDK Tools: Prepare Android projects for using Gradle 3.0.0+ build scripts")
endif()
else()
message("Android: Projects builds are DISABLED")
macro(add_android_project)
endmacro()
endif() # BUILD_ANDROID_PROJECTS
if(ANDROID_PROJECTS_BUILD_TYPE STREQUAL "ANT")
include(${CMAKE_CURRENT_LIST_DIR}/android_ant_projects.cmake)
elseif(ANDROID_PROJECTS_BUILD_TYPE STREQUAL "GRADLE")
include(${CMAKE_CURRENT_LIST_DIR}/android_gradle_projects.cmake)
elseif(BUILD_ANDROID_PROJECTS)
message(FATAL_ERROR "Internal error")
else()
# TODO
#include(${CMAKE_CURRENT_LIST_DIR}/android_disabled_projects.cmake)
endif()