Open Source Computer Vision Library https://opencv.org/
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file(TO_CMAKE_PATH "$ENV{ProgramFiles}" ProgramFiles_ENV_PATH)
file(TO_CMAKE_PATH "$ENV{ANDROID_SDK}" ANDROID_SDK_ENV_PATH)
#find android SDK
find_host_program(ANDROID_EXECUTABLE
NAMES android.bat android
PATHS "${ANDROID_SDK_ENV_PATH}/tools/"
"${ProgramFiles_ENV_PATH}/Android/android-sdk/tools/"
"${ProgramFiles_ENV_PATH}/Android/android-sdk-windows/tools/"
"/opt/android-sdk-linux/tools/"
"/opt/android-sdk-linux_x86/tools/"
"/opt/android-sdk-linux_86/tools/"
"/opt/android-sdk-mac/tools/"
"/opt/android-sdk-mac_x86/tools/"
"/opt/android-sdk-mac_86/tools/"
"/opt/android-sdk/tools/"
"$ENV{HOME}/NVPACK/android-sdk-linux_x86/tools/"
"$ENV{HOME}/NVPACK/android-sdk-linux_86/tools/"
"$ENV{HOME}/NVPACK/android-sdk-linux/tools/"
"$ENV{HOME}/NVPACK/android-sdk-mac_x86/tools/"
"$ENV{HOME}/NVPACK/android-sdk-mac_86/tools/"
"$ENV{HOME}/NVPACK/android-sdk-mac/tools/"
"$ENV{SystemDrive}/NVPACK/android-sdk-windows/tools/"
)
if(ANDROID_EXECUTABLE)
message(STATUS " Found android tool: ${ANDROID_EXECUTABLE}")
get_filename_component(ANDROID_SDK_TOOLS_PATH "${ANDROID_EXECUTABLE}" PATH)
#read source.properties
if(EXISTS "${ANDROID_SDK_TOOLS_PATH}/source.properties")
file(STRINGS "${ANDROID_SDK_TOOLS_PATH}/source.properties" ANDROID_SDK_TOOLS_SOURCE_PROPERTIES_LINES REGEX "^[ ]*[^#].*$")
foreach(line ${ANDROID_SDK_TOOLS_SOURCE_PROPERTIES_LINES})
string(REPLACE "\\:" ":" line ${line})
string(REPLACE "=" ";" line ${line})
list(GET line 0 line_name)
list(GET line 1 line_value)
string(REPLACE "." "_" line_name ${line_name})
SET(ANDROID_TOOLS_${line_name} "${line_value}")
MARK_AS_ADVANCED(ANDROID_TOOLS_${line_name})
endforeach()
endif()
if(NOT ANDROID_TOOLS_Pkg_Revision)
SET(ANDROID_TOOLS_Pkg_Revision "Unknown")
MARK_AS_ADVANCED(ANDROID_TOOLS_Pkg_Revision)
endif()
if(NOT ANDROID_TOOLS_Pkg_Desc)
SET(ANDROID_TOOLS_Pkg_Desc "Android SDK Tools, revision ${ANDROID_TOOLS_Pkg_Revision}.")
if(NOT ANDROID_TOOLS_Pkg_Revision GREATER 11)
SET(ANDROID_TOOLS_Pkg_Desc "${ANDROID_TOOLS_Pkg_Desc} It is recommended to update your SDK tools to revision 12 or newer.")
endif()
MARK_AS_ADVANCED(ANDROID_TOOLS_Pkg_Desc)
endif()
#get installed targets
execute_process(COMMAND ${ANDROID_EXECUTABLE} list target
RESULT_VARIABLE ANDROID_PROCESS
OUTPUT_VARIABLE ANDROID_SDK_TARGETS_FULL
ERROR_VARIABLE ANDROID_PROCESS_ERRORS
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX MATCHALL "(^|\n)id: [0-9]+ or \"([^\n]+[0-9+])\"(\n|$)" ANDROID_SDK_TARGETS_FULL "${ANDROID_SDK_TARGETS_FULL}")
SET(ANDROID_SDK_TARGETS "")
if(ANDROID_PROCESS EQUAL 0)
foreach(line ${ANDROID_SDK_TARGETS_FULL})
string(REGEX REPLACE "(^|\n)id: [0-9]+ or \"([^\n]+[0-9+])\"(\n|$)" "\\2" line "${line}")
list(APPEND ANDROID_SDK_TARGETS "${line}")
endforeach()
endif()
# detect ANDROID_SDK_TARGET if no target is provided by user
if(NOT ANDROID_SDK_TARGET)
set(desired_android_target_level ${ANDROID_NATIVE_API_LEVEL})
if(desired_android_target_level LESS 11)
set(desired_android_target_level 11)
endif()
if(ANDROID_PROCESS EQUAL 0)
math(EXPR desired_android_target_level_1 "${desired_android_target_level}-1")
foreach(target ${ANDROID_SDK_TARGETS})
string(REGEX MATCH "[0-9]+$" target_level "${target}")
if(target_level GREATER desired_android_target_level_1)
set(ANDROID_SDK_TARGET "${target}")
break()
endif()
endforeach()
else()
set(ANDROID_SDK_TARGET android-${desired_android_target_level})
message(WARNING "Could not retrieve list of installed Android targets. Will try to use \"${ANDROID_SDK_TARGET}\" target")
endif()
endif(NOT ANDROID_SDK_TARGET)
SET(ANDROID_SDK_TARGET "${ANDROID_SDK_TARGET}" CACHE STRING "SDK target for Android tests and samples")
if(ANDROID_PROCESS EQUAL 0 AND CMAKE_VERSION VERSION_GREATER "2.8")
set_property( CACHE ANDROID_SDK_TARGET PROPERTY STRINGS ${ANDROID_SDK_TARGETS} )
endif()
string(REGEX MATCH "[0-9]+$" ANDROID_SDK_TARGET_LEVEL "${ANDROID_SDK_TARGET}")
endif(ANDROID_EXECUTABLE)