opencv

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set(TIMVX_INSTALL_DIR "" CACHE PATH "Path to libtim-vx installation")
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set(VIVANTE_SDK_DIR "" CACHE PATH "Path to VIVANTE SDK needed by TIM-VX.")
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set(VIVANTE_SDK_LIB_CANDIDATES "OpenVX;VSC;GAL;ArchModelSw;NNArchPerf" CACHE STRING "VIVANTE SDK library candidates")
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# Ensure VIVANTE SDK library candidates are present in given search path
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function(find_vivante_sdk_libs _viv_notfound _viv_search_path)
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    foreach(one ${VIVANTE_SDK_LIB_CANDIDATES})
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        #NO_DEFAULT_PATH is used to ensure VIVANTE SDK libs are from one only source
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        find_library(VIV_${one}_LIB ${one} PATHS "${_viv_search_path}/lib" NO_DEFAULT_PATH)
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        if(NOT VIV_${one}_LIB)
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            list(APPEND _viv_notfound_list ${one})
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        endif()
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    endforeach()
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    set(${_viv_notfound} ${_viv_notfound_list} PARENT_SCOPE)
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endfunction()
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# Default value for VIVANTE_SDK_DIR: /usr
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if(NOT VIVANTE_SDK_DIR)
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    set(VIVANTE_SDK_DIR "/usr")
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endif()
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# Environment variable VIVANTE_SDK_DIR overrides the one in this script
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if(DEFINED ENV{VIVANTE_SDK_DIR})
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    set(VIVANTE_SDK_DIR $ENV{VIVANTE_SDK_DIR})
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    message(STATUS "TIM-VX: Load VIVANTE_SDK_DIR from system environment: ${VIVANTE_SDK_DIR}")
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endif()
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# Compile with pre-installed TIM-VX; Or compile together with TIM-VX from source
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if(TIMVX_INSTALL_DIR AND NOT BUILD_TIMVX)
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    message(STATUS "TIM-VX: Use binaries at ${TIMVX_INSTALL_DIR}")
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    set(BUILD_TIMVX OFF)
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    set(TIMVX_INC_DIR "${TIMVX_INSTALL_DIR}/include" CACHE INTERNAL "TIM-VX include directory")
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    find_library(TIMVX_LIB "tim-vx" PATHS "${TIMVX_INSTALL_DIR}/lib" NO_DEFAULT_PATH)
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    if(TIMVX_LIB)
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        set(TIMVX_FOUND ON)
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    else()
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        set(TIMVX_FOUND OFF)
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    endif()
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    # Verify if requested VIVANTE SDK libraries are all found
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    find_vivante_sdk_libs(missing ${VIVANTE_SDK_DIR})
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    if(missing)
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        message(STATUS "TIM-VX: Failed to find ${missing} in ${VIVANTE_SDK_DIR}/lib. Turning off TIMVX_VIV_FOUND")
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        set(TIMVX_VIV_FOUND OFF)
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    else()
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        message(STATUS "TIM-VX: dependent VIVANTE SDK libraries are found at ${VIVANTE_SDK_DIR}/lib.")
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        set(TIMVX_VIV_FOUND ON)
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    endif()
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else()
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    message(STATUS "TIM-VX: Build from source")
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    include("${OpenCV_SOURCE_DIR}/3rdparty/libtim-vx/tim-vx.cmake")
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endif()
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if(TIMVX_FOUND AND TIMVX_VIV_FOUND)
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    set(HAVE_TIMVX 1)
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    message(STATUS "TIM-VX: Found TIM-VX includes: ${TIMVX_INC_DIR}")
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    message(STATUS "TIM-VX: Found TIM-VX library: ${TIMVX_LIB}")
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    set(TIMVX_LIBRARY   ${TIMVX_LIB})
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    set(TIMVX_INCLUDE_DIR   ${TIMVX_INC_DIR})
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    message(STATUS "TIM-VX: Found VIVANTE SDK libraries: ${VIVANTE_SDK_DIR}/lib")
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    link_directories(${VIVANTE_SDK_DIR}/lib)
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endif()
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MARK_AS_ADVANCED(
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	TIMVX_INC_DIR
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	TIMVX_LIB
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)
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