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      1 # Local variables (set for each module):
      2 #
      3 # name       - short name in lower case i.e. core
      4 # the_module - full name in lower case i.e. opencv_core
      5 
      6 # Global variables:
      7 #
      8 # OPENCV_MODULE_${the_module}_LOCATION
      9 # OPENCV_MODULE_${the_module}_BINARY_DIR
     10 # OPENCV_MODULE_${the_module}_DESCRIPTION
     11 # OPENCV_MODULE_${the_module}_CLASS - PUBLIC|INTERNAL|BINDINGS
     12 # OPENCV_MODULE_${the_module}_HEADERS
     13 # OPENCV_MODULE_${the_module}_SOURCES
     14 # OPENCV_MODULE_${the_module}_DEPS - final flattened set of module dependencies
     15 # OPENCV_MODULE_${the_module}_DEPS_TO_LINK - differs from above for world build only
     16 # OPENCV_MODULE_${the_module}_DEPS_EXT - non-module dependencies
     17 # OPENCV_MODULE_${the_module}_REQ_DEPS
     18 # OPENCV_MODULE_${the_module}_OPT_DEPS
     19 # OPENCV_MODULE_${the_module}_PRIVATE_REQ_DEPS
     20 # OPENCV_MODULE_${the_module}_PRIVATE_OPT_DEPS
     21 # OPENCV_MODULE_${the_module}_IS_PART_OF_WORLD
     22 # OPENCV_MODULE_${the_module}_CUDA_OBJECTS - compiled CUDA objects list
     23 # OPENCV_MODULE_${the_module}_CHILDREN - list of submodules for compound modules (cmake >= 2.8.8)
     24 # OPENCV_MODULE_${the_module}_WRAPPERS - list of wrappers supporting this module
     25 # HAVE_${the_module} - for fast check of module availability
     26 
     27 # To control the setup of the module you could also set:
     28 # the_description - text to be used as current module description
     29 # OPENCV_MODULE_TYPE - STATIC|SHARED - set to force override global settings for current module
     30 # OPENCV_MODULE_IS_PART_OF_WORLD - ON|OFF (default ON) - should the module be added to the opencv_world?
     31 # BUILD_${the_module}_INIT - ON|OFF (default ON) - initial value for BUILD_${the_module}
     32 # OPENCV_MODULE_CHILDREN - list of submodules
     33 
     34 # The verbose template for OpenCV module:
     35 #
     36 #   ocv_add_module(modname <dependencies>)
     37 #   ocv_glob_module_sources(([EXCLUDE_CUDA] <extra sources&headers>)
     38 #                          or glob them manually and ocv_set_module_sources(...)
     39 #   ocv_module_include_directories(<extra include directories>)
     40 #   ocv_create_module()
     41 #   <add extra link dependencies, compiler options, etc>
     42 #   ocv_add_precompiled_headers(${the_module})
     43 #   <add extra installation rules>
     44 #   ocv_add_accuracy_tests(<extra dependencies>)
     45 #   ocv_add_perf_tests(<extra dependencies>)
     46 #   ocv_add_samples(<extra dependencies>)
     47 #
     48 #
     49 # If module have no "extra" then you can define it in one line:
     50 #
     51 #   ocv_define_module(modname <dependencies>)
     52 
     53 # clean flags for modules enabled on previous cmake run
     54 # this is necessary to correctly handle modules removal
     55 foreach(mod ${OPENCV_MODULES_BUILD} ${OPENCV_MODULES_DISABLED_USER} ${OPENCV_MODULES_DISABLED_AUTO} ${OPENCV_MODULES_DISABLED_FORCE})
     56   if(HAVE_${mod})
     57     unset(HAVE_${mod} CACHE)
     58   endif()
     59   unset(OPENCV_MODULE_${mod}_REQ_DEPS CACHE)
     60   unset(OPENCV_MODULE_${mod}_OPT_DEPS CACHE)
     61   unset(OPENCV_MODULE_${mod}_PRIVATE_REQ_DEPS CACHE)
     62   unset(OPENCV_MODULE_${mod}_PRIVATE_OPT_DEPS CACHE)
     63   unset(OPENCV_MODULE_${mod}_LINK_DEPS CACHE)
     64   unset(OPENCV_MODULE_${mod}_WRAPPERS CACHE)
     65 endforeach()
     66 
     67 # clean modules info which needs to be recalculated
     68 set(OPENCV_MODULES_PUBLIC         "" CACHE INTERNAL "List of OpenCV modules marked for export")
     69 set(OPENCV_MODULES_BUILD          "" CACHE INTERNAL "List of OpenCV modules included into the build")
     70 set(OPENCV_MODULES_DISABLED_USER  "" CACHE INTERNAL "List of OpenCV modules explicitly disabled by user")
     71 set(OPENCV_MODULES_DISABLED_AUTO  "" CACHE INTERNAL "List of OpenCV modules implicitly disabled due to dependencies")
     72 set(OPENCV_MODULES_DISABLED_FORCE "" CACHE INTERNAL "List of OpenCV modules which can not be build in current configuration")
     73 unset(OPENCV_WORLD_MODULES CACHE)
     74 
     75 # adds dependencies to OpenCV module
     76 # Usage:
     77 #   add_dependencies(opencv_<name> [REQUIRED] [<list of dependencies>] [OPTIONAL <list of modules>] [WRAP <list of wrappers>])
     78 # Notes:
     79 # * <list of dependencies> - can include full names of modules or full pathes to shared/static libraries or cmake targets
     80 macro(ocv_add_dependencies full_modname)
     81   ocv_debug_message("ocv_add_dependencies(" ${full_modname} ${ARGN} ")")
     82   #we don't clean the dependencies here to allow this macro several times for every module
     83   foreach(d "REQUIRED" ${ARGN})
     84     if(d STREQUAL "REQUIRED")
     85       set(__depsvar OPENCV_MODULE_${full_modname}_REQ_DEPS)
     86     elseif(d STREQUAL "OPTIONAL")
     87       set(__depsvar OPENCV_MODULE_${full_modname}_OPT_DEPS)
     88     elseif(d STREQUAL "PRIVATE_REQUIRED")
     89       set(__depsvar OPENCV_MODULE_${full_modname}_PRIVATE_REQ_DEPS)
     90     elseif(d STREQUAL "PRIVATE_OPTIONAL")
     91       set(__depsvar OPENCV_MODULE_${full_modname}_PRIVATE_OPT_DEPS)
     92     elseif(d STREQUAL "WRAP")
     93       set(__depsvar OPENCV_MODULE_${full_modname}_WRAPPERS)
     94     else()
     95       list(APPEND ${__depsvar} "${d}")
     96     endif()
     97   endforeach()
     98   unset(__depsvar)
     99 
    100   # hack for python
    101   set(__python_idx)
    102   list(FIND OPENCV_MODULE_${full_modname}_WRAPPERS "python" __python_idx)
    103   if (NOT __python_idx EQUAL -1)
    104     list(REMOVE_ITEM OPENCV_MODULE_${full_modname}_WRAPPERS "python")
    105     list(APPEND OPENCV_MODULE_${full_modname}_WRAPPERS "python2" "python3")
    106   endif()
    107   unset(__python_idx)
    108 
    109   ocv_list_unique(OPENCV_MODULE_${full_modname}_REQ_DEPS)
    110   ocv_list_unique(OPENCV_MODULE_${full_modname}_OPT_DEPS)
    111   ocv_list_unique(OPENCV_MODULE_${full_modname}_PRIVATE_REQ_DEPS)
    112   ocv_list_unique(OPENCV_MODULE_${full_modname}_PRIVATE_OPT_DEPS)
    113   ocv_list_unique(OPENCV_MODULE_${full_modname}_WRAPPERS)
    114 
    115   set(OPENCV_MODULE_${full_modname}_REQ_DEPS ${OPENCV_MODULE_${full_modname}_REQ_DEPS}
    116     CACHE INTERNAL "Required dependencies of ${full_modname} module")
    117   set(OPENCV_MODULE_${full_modname}_OPT_DEPS ${OPENCV_MODULE_${full_modname}_OPT_DEPS}
    118     CACHE INTERNAL "Optional dependencies of ${full_modname} module")
    119   set(OPENCV_MODULE_${full_modname}_PRIVATE_REQ_DEPS ${OPENCV_MODULE_${full_modname}_PRIVATE_REQ_DEPS}
    120     CACHE INTERNAL "Required private dependencies of ${full_modname} module")
    121   set(OPENCV_MODULE_${full_modname}_PRIVATE_OPT_DEPS ${OPENCV_MODULE_${full_modname}_PRIVATE_OPT_DEPS}
    122     CACHE INTERNAL "Optional private dependencies of ${full_modname} module")
    123   set(OPENCV_MODULE_${full_modname}_WRAPPERS ${OPENCV_MODULE_${full_modname}_WRAPPERS}
    124     CACHE INTERNAL "List of wrappers supporting module ${full_modname}")
    125 endmacro()
    126 
    127 # declare new OpenCV module in current folder
    128 # Usage:
    129 #   ocv_add_module(<name> [INTERNAL|BINDINGS] [REQUIRED] [<list of dependencies>] [OPTIONAL <list of optional dependencies>] [WRAP <list of wrappers>])
    130 # Example:
    131 #   ocv_add_module(yaom INTERNAL opencv_core opencv_highgui opencv_flann OPTIONAL opencv_cudev)
    132 macro(ocv_add_module _name)
    133   ocv_debug_message("ocv_add_module(" ${_name} ${ARGN} ")")
    134   string(TOLOWER "${_name}" name)
    135   set(the_module opencv_${name})
    136 
    137   # the first pass - collect modules info, the second pass - create targets
    138   if(OPENCV_INITIAL_PASS)
    139     #guard agains redefinition
    140     if(";${OPENCV_MODULES_BUILD};${OPENCV_MODULES_DISABLED_USER};" MATCHES ";${the_module};")
    141       message(FATAL_ERROR "Redefinition of the ${the_module} module.
    142   at:                    ${CMAKE_CURRENT_SOURCE_DIR}
    143   previously defined at: ${OPENCV_MODULE_${the_module}_LOCATION}
    144 ")
    145     endif()
    146 
    147     if(NOT DEFINED the_description)
    148       set(the_description "The ${name} OpenCV module")
    149     endif()
    150 
    151     if(NOT DEFINED BUILD_${the_module}_INIT)
    152       set(BUILD_${the_module}_INIT ON)
    153     endif()
    154 
    155     # create option to enable/disable this module
    156     option(BUILD_${the_module} "Include ${the_module} module into the OpenCV build" ${BUILD_${the_module}_INIT})
    157 
    158     # remember the module details
    159     set(OPENCV_MODULE_${the_module}_DESCRIPTION "${the_description}" CACHE INTERNAL "Brief description of ${the_module} module")
    160     set(OPENCV_MODULE_${the_module}_LOCATION    "${CMAKE_CURRENT_SOURCE_DIR}" CACHE INTERNAL "Location of ${the_module} module sources")
    161 
    162     set(OPENCV_MODULE_${the_module}_LINK_DEPS "" CACHE INTERNAL "")
    163 
    164     # parse list of dependencies
    165     if("${ARGV1}" STREQUAL "INTERNAL" OR "${ARGV1}" STREQUAL "BINDINGS")
    166       set(OPENCV_MODULE_${the_module}_CLASS "${ARGV1}" CACHE INTERNAL "The category of the module")
    167       set(__ocv_argn__ ${ARGN})
    168       list(REMOVE_AT __ocv_argn__ 0)
    169       ocv_add_dependencies(${the_module} ${__ocv_argn__})
    170       unset(__ocv_argn__)
    171     else()
    172       set(OPENCV_MODULE_${the_module}_CLASS "PUBLIC" CACHE INTERNAL "The category of the module")
    173       ocv_add_dependencies(${the_module} ${ARGN})
    174       if(BUILD_${the_module})
    175         set(OPENCV_MODULES_PUBLIC ${OPENCV_MODULES_PUBLIC} "${the_module}" CACHE INTERNAL "List of OpenCV modules marked for export")
    176       endif()
    177     endif()
    178 
    179     # add HAL as dependency
    180     if(NOT "${the_module}" STREQUAL "opencv_hal")
    181       ocv_add_dependencies(${the_module} opencv_hal)
    182     endif()
    183 
    184     # add self to the world dependencies
    185     if((NOT DEFINED OPENCV_MODULE_IS_PART_OF_WORLD
    186         AND NOT OPENCV_MODULE_${the_module}_CLASS STREQUAL "BINDINGS"
    187         AND NOT OPENCV_PROCESSING_EXTRA_MODULES)
    188         OR OPENCV_MODULE_IS_PART_OF_WORLD
    189         )
    190       set(OPENCV_MODULE_${the_module}_IS_PART_OF_WORLD ON CACHE INTERNAL "")
    191       ocv_add_dependencies(opencv_world OPTIONAL ${the_module})
    192     else()
    193       set(OPENCV_MODULE_${the_module}_IS_PART_OF_WORLD OFF CACHE INTERNAL "")
    194     endif()
    195 
    196     if(BUILD_${the_module})
    197       set(OPENCV_MODULES_BUILD ${OPENCV_MODULES_BUILD} "${the_module}" CACHE INTERNAL "List of OpenCV modules included into the build")
    198     else()
    199       set(OPENCV_MODULES_DISABLED_USER ${OPENCV_MODULES_DISABLED_USER} "${the_module}" CACHE INTERNAL "List of OpenCV modules explicitly disabled by user")
    200     endif()
    201 
    202     # add submodules if any
    203     set(OPENCV_MODULE_${the_module}_CHILDREN "${OPENCV_MODULE_CHILDREN}" CACHE INTERNAL "List of ${the_module} submodules")
    204 
    205     # add reverse wrapper dependencies
    206     foreach (wrapper ${OPENCV_MODULE_${the_module}_WRAPPERS})
    207       ocv_add_dependencies(opencv_${wrapper} OPTIONAL ${the_module})
    208     endforeach()
    209 
    210     # stop processing of current file
    211     return()
    212   else()
    213     set(OPENCV_MODULE_${the_module}_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}" CACHE INTERNAL "")
    214     if(NOT BUILD_${the_module})
    215       return() # extra protection from redefinition
    216     endif()
    217     if((NOT OPENCV_MODULE_${the_module}_IS_PART_OF_WORLD AND NOT ${the_module} STREQUAL opencv_world) OR NOT ${BUILD_opencv_world})
    218       project(${the_module})
    219     endif()
    220   endif()
    221 endmacro()
    222 
    223 # excludes module from current configuration
    224 macro(ocv_module_disable module)
    225   set(__modname ${module})
    226   if(NOT __modname MATCHES "^opencv_")
    227     set(__modname opencv_${module})
    228   endif()
    229   list(APPEND OPENCV_MODULES_DISABLED_FORCE "${__modname}")
    230   set(HAVE_${__modname} OFF CACHE INTERNAL "Module ${__modname} can not be built in current configuration")
    231   set(OPENCV_MODULE_${__modname}_LOCATION "${CMAKE_CURRENT_SOURCE_DIR}" CACHE INTERNAL "Location of ${__modname} module sources")
    232   set(OPENCV_MODULES_DISABLED_FORCE "${OPENCV_MODULES_DISABLED_FORCE}" CACHE INTERNAL "List of OpenCV modules which can not be build in current configuration")
    233   if(BUILD_${__modname})
    234     # touch variable controlling build of the module to suppress "unused variable" CMake warning
    235   endif()
    236   unset(__modname)
    237   return() # leave the current folder
    238 endmacro()
    239 
    240 
    241 # collect modules from specified directories
    242 # NB: must be called only once!
    243 macro(ocv_glob_modules)
    244   if(DEFINED OPENCV_INITIAL_PASS)
    245     message(FATAL_ERROR "OpenCV has already loaded its modules. Calling ocv_glob_modules second time is not allowed.")
    246   endif()
    247   set(__directories_observed "")
    248 
    249   # collect modules
    250   set(OPENCV_INITIAL_PASS ON)
    251   set(OPENCV_PROCESSING_EXTRA_MODULES 0)
    252   foreach(__path ${ARGN})
    253     if("${__path}" STREQUAL "EXTRA")
    254       set(OPENCV_PROCESSING_EXTRA_MODULES 1)
    255     endif()
    256     get_filename_component(__path "${__path}" ABSOLUTE)
    257 
    258     list(FIND __directories_observed "${__path}" __pathIdx)
    259     if(__pathIdx GREATER -1)
    260       message(FATAL_ERROR "The directory ${__path} is observed for OpenCV modules second time.")
    261     endif()
    262     list(APPEND __directories_observed "${__path}")
    263 
    264     file(GLOB __ocvmodules RELATIVE "${__path}" "${__path}/*")
    265     if(__ocvmodules)
    266       list(SORT __ocvmodules)
    267       foreach(mod ${__ocvmodules})
    268         get_filename_component(__modpath "${__path}/${mod}" ABSOLUTE)
    269         if(EXISTS "${__modpath}/CMakeLists.txt")
    270 
    271           list(FIND __directories_observed "${__modpath}" __pathIdx)
    272           if(__pathIdx GREATER -1)
    273             message(FATAL_ERROR "The module from ${__modpath} is already loaded.")
    274           endif()
    275           list(APPEND __directories_observed "${__modpath}")
    276 
    277           add_subdirectory("${__modpath}" "${CMAKE_CURRENT_BINARY_DIR}/${mod}/.${mod}")
    278         endif()
    279       endforeach()
    280     endif()
    281   endforeach()
    282   ocv_clear_vars(__ocvmodules __directories_observed __path __modpath __pathIdx)
    283 
    284   # resolve dependencies
    285   __ocv_resolve_dependencies()
    286 
    287   # create modules
    288   set(OPENCV_INITIAL_PASS OFF PARENT_SCOPE)
    289   set(OPENCV_INITIAL_PASS OFF)
    290   if(${BUILD_opencv_world})
    291     add_subdirectory("${OPENCV_MODULE_opencv_world_LOCATION}" "${CMAKE_CURRENT_BINARY_DIR}/world")
    292     foreach(m ${OPENCV_MODULES_BUILD})
    293       if(NOT OPENCV_MODULE_${m}_IS_PART_OF_WORLD AND NOT ${m} STREQUAL opencv_world)
    294         message(STATUS "Processing module ${m}...")
    295         if(m MATCHES "^opencv_")
    296           string(REGEX REPLACE "^opencv_" "" __shortname "${m}")
    297           add_subdirectory("${OPENCV_MODULE_${m}_LOCATION}" "${CMAKE_CURRENT_BINARY_DIR}/${__shortname}")
    298         else()
    299           message(WARNING "Check module name: ${m}")
    300           add_subdirectory("${OPENCV_MODULE_${m}_LOCATION}" "${CMAKE_CURRENT_BINARY_DIR}/${m}")
    301         endif()
    302       endif()
    303     endforeach()
    304   else()
    305     foreach(m ${OPENCV_MODULES_BUILD})
    306       if(m MATCHES "^opencv_")
    307         string(REGEX REPLACE "^opencv_" "" __shortname "${m}")
    308         add_subdirectory("${OPENCV_MODULE_${m}_LOCATION}" "${CMAKE_CURRENT_BINARY_DIR}/${__shortname}")
    309       else()
    310         message(WARNING "Check module name: ${m}")
    311         add_subdirectory("${OPENCV_MODULE_${m}_LOCATION}" "${CMAKE_CURRENT_BINARY_DIR}/${m}")
    312       endif()
    313     endforeach()
    314   endif()
    315   unset(__shortname)
    316 endmacro()
    317 
    318 
    319 # disables OpenCV module with missing dependencies
    320 function(__ocv_module_turn_off the_module)
    321   list(REMOVE_ITEM OPENCV_MODULES_DISABLED_AUTO "${the_module}")
    322   list(APPEND OPENCV_MODULES_DISABLED_AUTO "${the_module}")
    323   list(REMOVE_ITEM OPENCV_MODULES_BUILD "${the_module}")
    324   list(REMOVE_ITEM OPENCV_MODULES_PUBLIC "${the_module}")
    325   set(HAVE_${the_module} OFF CACHE INTERNAL "Module ${the_module} can not be built in current configuration")
    326 
    327   set(OPENCV_MODULES_DISABLED_AUTO "${OPENCV_MODULES_DISABLED_AUTO}" CACHE INTERNAL "")
    328   set(OPENCV_MODULES_BUILD "${OPENCV_MODULES_BUILD}" CACHE INTERNAL "")
    329   set(OPENCV_MODULES_PUBLIC "${OPENCV_MODULES_PUBLIC}" CACHE INTERNAL "")
    330 endfunction()
    331 
    332 # sort modules by dependencies
    333 function(__ocv_sort_modules_by_deps __lst)
    334   ocv_list_sort(${__lst})
    335   set(input ${${__lst}})
    336   set(result "")
    337   while(input)
    338     list(LENGTH input length_before)
    339     foreach (m ${input})
    340       # check if module is in the result already
    341       if (NOT ";${result};" MATCHES ";${m};")
    342         # scan through module dependencies...
    343         set(unresolved_deps_found FALSE)
    344         foreach (d ${OPENCV_MODULE_${m}_CHILDREN} ${OPENCV_MODULE_${m}_DEPS})
    345           # ... which are not already in the result and are enabled
    346           if ((NOT ";${result};" MATCHES ";${d};") AND HAVE_${d})
    347             set(unresolved_deps_found TRUE)
    348             break()
    349           endif()
    350         endforeach()
    351         # chek if all dependencies for this module has been resolved
    352         if (NOT unresolved_deps_found)
    353           list(APPEND result ${m})
    354           list(REMOVE_ITEM input ${m})
    355         endif()
    356       endif()
    357     endforeach()
    358     list(LENGTH input length_after)
    359     # check for infinite loop or unresolved dependencies
    360     if (NOT length_after LESS length_before)
    361       message(WARNING "Unresolved dependencies or loop in dependency graph (${length_after})\n"
    362         "Processed ${__lst}: ${${__lst}}\n"
    363         "Good modules: ${result}\n"
    364         "Bad modules: ${input}"
    365       )
    366       list(APPEND result ${input})
    367       break()
    368     endif()
    369   endwhile()
    370   set(${__lst} "${result}" PARENT_SCOPE)
    371 endfunction()
    372 
    373 # resolve dependensies
    374 function(__ocv_resolve_dependencies)
    375   foreach(m ${OPENCV_MODULES_DISABLED_USER})
    376     set(HAVE_${m} OFF CACHE INTERNAL "Module ${m} will not be built in current configuration")
    377   endforeach()
    378   foreach(m ${OPENCV_MODULES_BUILD})
    379     set(HAVE_${m} ON CACHE INTERNAL "Module ${m} will be built in current configuration")
    380   endforeach()
    381 
    382   # disable MODULES with unresolved dependencies
    383   set(has_changes ON)
    384   while(has_changes)
    385     set(has_changes OFF)
    386     foreach(m ${OPENCV_MODULES_BUILD})
    387       set(__deps ${OPENCV_MODULE_${m}_REQ_DEPS} ${OPENCV_MODULE_${m}_PRIVATE_REQ_DEPS})
    388       while(__deps)
    389         ocv_list_pop_front(__deps d)
    390         string(TOLOWER "${d}" upper_d)
    391         if(NOT (HAVE_${d} OR HAVE_${upper_d} OR TARGET ${d} OR EXISTS ${d}))
    392           if(d MATCHES "^opencv_") # TODO Remove this condition in the future and use HAVE_ variables only
    393             message(STATUS "Module ${m} disabled because ${d} dependency can't be resolved!")
    394             __ocv_module_turn_off(${m})
    395             set(has_changes ON)
    396             break()
    397           else()
    398             message(STATUS "Assume that non-module dependency is available: ${d} (for module ${m})")
    399           endif()
    400         endif()
    401       endwhile()
    402     endforeach()
    403   endwhile()
    404 
    405 #  message(STATUS "List of active modules: ${OPENCV_MODULES_BUILD}")
    406 
    407   foreach(m ${OPENCV_MODULES_BUILD})
    408     set(deps_${m} ${OPENCV_MODULE_${m}_REQ_DEPS})
    409     foreach(d ${OPENCV_MODULE_${m}_OPT_DEPS})
    410       if(NOT (";${deps_${m}};" MATCHES ";${d};"))
    411         if(HAVE_${d} OR TARGET ${d})
    412           list(APPEND deps_${m} ${d})
    413         endif()
    414       endif()
    415     endforeach()
    416 #    message(STATUS "Initial deps of ${m} (w/o private deps): ${deps_${m}}")
    417   endforeach()
    418 
    419   # propagate dependencies
    420   set(has_changes ON)
    421   while(has_changes)
    422     set(has_changes OFF)
    423     foreach(m2 ${OPENCV_MODULES_BUILD}) # transfer deps of m2 to m
    424       foreach(m ${OPENCV_MODULES_BUILD})
    425         if((NOT m STREQUAL m2) AND ";${deps_${m}};" MATCHES ";${m2};")
    426           foreach(d ${deps_${m2}})
    427             if(NOT (";${deps_${m}};" MATCHES ";${d};"))
    428 #              message(STATUS "  Transfer dependency ${d} from ${m2} to ${m}")
    429               list(APPEND deps_${m} ${d})
    430               set(has_changes ON)
    431             endif()
    432           endforeach()
    433         endif()
    434       endforeach()
    435     endforeach()
    436   endwhile()
    437 
    438   # process private deps
    439   foreach(m ${OPENCV_MODULES_BUILD})
    440     foreach(d ${OPENCV_MODULE_${m}_PRIVATE_REQ_DEPS})
    441       if(NOT (";${deps_${m}};" MATCHES ";${d};"))
    442         list(APPEND deps_${m} ${d})
    443       endif()
    444     endforeach()
    445     foreach(d ${OPENCV_MODULE_${m}_PRIVATE_OPT_DEPS})
    446       if(NOT (";${deps_${m}};" MATCHES ";${d};"))
    447         if(HAVE_${d} OR TARGET ${d})
    448           list(APPEND deps_${m} ${d})
    449         endif()
    450       endif()
    451     endforeach()
    452   endforeach()
    453 
    454   ocv_list_sort(OPENCV_MODULES_BUILD)
    455 
    456   foreach(m ${OPENCV_MODULES_BUILD})
    457 #    message(STATUS "FULL deps of ${m}: ${deps_${m}}")
    458     set(OPENCV_MODULE_${m}_DEPS ${deps_${m}})
    459     set(OPENCV_MODULE_${m}_DEPS_EXT ${deps_${m}})
    460     ocv_list_filterout(OPENCV_MODULE_${m}_DEPS_EXT "^opencv_[^ ]+$")
    461     if(OPENCV_MODULE_${m}_DEPS_EXT AND OPENCV_MODULE_${m}_DEPS)
    462       list(REMOVE_ITEM OPENCV_MODULE_${m}_DEPS ${OPENCV_MODULE_${m}_DEPS_EXT})
    463     endif()
    464   endforeach()
    465 
    466   # reorder dependencies
    467   foreach(m ${OPENCV_MODULES_BUILD})
    468     __ocv_sort_modules_by_deps(OPENCV_MODULE_${m}_DEPS)
    469     ocv_list_sort(OPENCV_MODULE_${m}_DEPS_EXT)
    470 
    471     set(LINK_DEPS ${OPENCV_MODULE_${m}_DEPS})
    472 
    473     # process world
    474     if(BUILD_opencv_world)
    475       if(OPENCV_MODULE_${m}_IS_PART_OF_WORLD)
    476         list(APPEND OPENCV_WORLD_MODULES ${m})
    477       endif()
    478       foreach(m2 ${OPENCV_MODULES_BUILD})
    479         if(OPENCV_MODULE_${m2}_IS_PART_OF_WORLD)
    480           if(";${LINK_DEPS};" MATCHES ";${m2};")
    481             list(REMOVE_ITEM LINK_DEPS ${m2})
    482             if(NOT (";${LINK_DEPS};" MATCHES ";opencv_world;") AND NOT (${m} STREQUAL opencv_world))
    483               list(APPEND LINK_DEPS opencv_world)
    484             endif()
    485           endif()
    486           if(${m} STREQUAL opencv_world)
    487             list(APPEND OPENCV_MODULE_opencv_world_DEPS_EXT ${OPENCV_MODULE_${m2}_DEPS_EXT})
    488           endif()
    489         endif()
    490       endforeach()
    491     endif()
    492 
    493     set(OPENCV_MODULE_${m}_DEPS ${OPENCV_MODULE_${m}_DEPS} CACHE INTERNAL "Flattened dependencies of ${m} module")
    494     set(OPENCV_MODULE_${m}_DEPS_EXT ${OPENCV_MODULE_${m}_DEPS_EXT} CACHE INTERNAL "Extra dependencies of ${m} module")
    495     set(OPENCV_MODULE_${m}_DEPS_TO_LINK ${LINK_DEPS} CACHE INTERNAL "Flattened dependencies of ${m} module (for linker)")
    496 
    497 #    message(STATUS "  module deps of ${m}: ${OPENCV_MODULE_${m}_DEPS}")
    498 #    message(STATUS "  module link deps of ${m}: ${OPENCV_MODULE_${m}_DEPS_TO_LINK}")
    499 #    message(STATUS "  extra deps of ${m}: ${OPENCV_MODULE_${m}_DEPS_EXT}")
    500 #    message(STATUS "")
    501   endforeach()
    502 
    503   __ocv_sort_modules_by_deps(OPENCV_MODULES_BUILD)
    504 
    505   set(OPENCV_MODULES_PUBLIC        ${OPENCV_MODULES_PUBLIC}        CACHE INTERNAL "List of OpenCV modules marked for export")
    506   set(OPENCV_MODULES_BUILD         ${OPENCV_MODULES_BUILD}         CACHE INTERNAL "List of OpenCV modules included into the build")
    507   set(OPENCV_MODULES_DISABLED_AUTO ${OPENCV_MODULES_DISABLED_AUTO} CACHE INTERNAL "List of OpenCV modules implicitly disabled due to dependencies")
    508   set(OPENCV_WORLD_MODULES         ${OPENCV_WORLD_MODULES}         CACHE INTERNAL "List of OpenCV modules included into the world")
    509 endfunction()
    510 
    511 
    512 # setup include paths for the list of passed modules
    513 macro(ocv_include_modules)
    514   foreach(d ${ARGN})
    515     if(d MATCHES "^opencv_" AND HAVE_${d})
    516       if (EXISTS "${OPENCV_MODULE_${d}_LOCATION}/include")
    517         ocv_include_directories("${OPENCV_MODULE_${d}_LOCATION}/include")
    518       endif()
    519     elseif(EXISTS "${d}")
    520       ocv_include_directories("${d}")
    521     endif()
    522   endforeach()
    523 endmacro()
    524 
    525 # same as previous but with dependencies
    526 macro(ocv_include_modules_recurse)
    527   ocv_include_modules(${ARGN})
    528   foreach(d ${ARGN})
    529     if(d MATCHES "^opencv_" AND HAVE_${d} AND DEFINED OPENCV_MODULE_${d}_DEPS)
    530       foreach (sub ${OPENCV_MODULE_${d}_DEPS})
    531         ocv_include_modules(${sub})
    532       endforeach()
    533     endif()
    534   endforeach()
    535 endmacro()
    536 
    537 # setup include paths for the list of passed modules
    538 macro(ocv_target_include_modules target)
    539   foreach(d ${ARGN})
    540     if(d MATCHES "^opencv_" AND HAVE_${d})
    541       if (EXISTS "${OPENCV_MODULE_${d}_LOCATION}/include")
    542         ocv_target_include_directories(${target} "${OPENCV_MODULE_${d}_LOCATION}/include")
    543       endif()
    544     elseif(EXISTS "${d}")
    545       ocv_target_include_directories(${target} "${d}")
    546     endif()
    547   endforeach()
    548 endmacro()
    549 
    550 # setup include paths for the list of passed modules and recursively add dependent modules
    551 macro(ocv_target_include_modules_recurse target)
    552   foreach(d ${ARGN})
    553     if(d MATCHES "^opencv_" AND HAVE_${d})
    554       if (EXISTS "${OPENCV_MODULE_${d}_LOCATION}/include")
    555         ocv_target_include_directories(${target} "${OPENCV_MODULE_${d}_LOCATION}/include")
    556       endif()
    557       if(OPENCV_MODULE_${d}_DEPS)
    558         ocv_target_include_modules(${target} ${OPENCV_MODULE_${d}_DEPS})
    559       endif()
    560     elseif(EXISTS "${d}")
    561       ocv_target_include_directories(${target} "${d}")
    562     endif()
    563   endforeach()
    564 endmacro()
    565 
    566 # setup include path for OpenCV headers for specified module
    567 # ocv_module_include_directories(<extra include directories/extra include modules>)
    568 macro(ocv_module_include_directories)
    569   ocv_target_include_directories(${the_module}
    570       "${OPENCV_MODULE_${the_module}_LOCATION}/include"
    571       "${OPENCV_MODULE_${the_module}_LOCATION}/src"
    572       "${CMAKE_CURRENT_BINARY_DIR}" # for precompiled headers
    573       )
    574   ocv_target_include_modules(${the_module} ${OPENCV_MODULE_${the_module}_DEPS} ${ARGN})
    575 endmacro()
    576 
    577 
    578 # sets header and source files for the current module
    579 # NB: all files specified as headers will be installed
    580 # Usage:
    581 # ocv_set_module_sources([HEADERS] <list of files> [SOURCES] <list of files>)
    582 macro(ocv_set_module_sources)
    583   ocv_debug_message("ocv_set_module_sources(" ${ARGN} ")")
    584 
    585   set(OPENCV_MODULE_${the_module}_HEADERS "")
    586   set(OPENCV_MODULE_${the_module}_SOURCES "")
    587 
    588   foreach(f "HEADERS" ${ARGN})
    589     if(f STREQUAL "HEADERS" OR f STREQUAL "SOURCES")
    590       set(__filesvar "OPENCV_MODULE_${the_module}_${f}")
    591     else()
    592       list(APPEND ${__filesvar} "${f}")
    593     endif()
    594   endforeach()
    595 
    596   # the hacky way to embeed any files into the OpenCV without modification of its build system
    597   if(COMMAND ocv_get_module_external_sources)
    598     ocv_get_module_external_sources()
    599   endif()
    600 
    601   # use full paths for module to be independent from the module location
    602   ocv_convert_to_full_paths(OPENCV_MODULE_${the_module}_HEADERS)
    603 
    604   set(OPENCV_MODULE_${the_module}_HEADERS ${OPENCV_MODULE_${the_module}_HEADERS} CACHE INTERNAL "List of header files for ${the_module}")
    605   set(OPENCV_MODULE_${the_module}_SOURCES ${OPENCV_MODULE_${the_module}_SOURCES} CACHE INTERNAL "List of source files for ${the_module}")
    606 endmacro()
    607 
    608 # finds and sets headers and sources for the standard OpenCV module
    609 # Usage:
    610 # ocv_glob_module_sources([EXCLUDE_CUDA] <extra sources&headers in the same format as used in ocv_set_module_sources>)
    611 macro(ocv_glob_module_sources)
    612   ocv_debug_message("ocv_glob_module_sources(" ${ARGN} ")")
    613   set(_argn ${ARGN})
    614   list(FIND _argn "EXCLUDE_CUDA" exclude_cuda)
    615   if(NOT exclude_cuda EQUAL -1)
    616     list(REMOVE_AT _argn ${exclude_cuda})
    617   endif()
    618 
    619   file(GLOB_RECURSE lib_srcs
    620        "${CMAKE_CURRENT_LIST_DIR}/src/*.cpp"
    621   )
    622   file(GLOB_RECURSE lib_int_hdrs
    623        "${CMAKE_CURRENT_LIST_DIR}/src/*.hpp"
    624        "${CMAKE_CURRENT_LIST_DIR}/src/*.h"
    625   )
    626   file(GLOB lib_hdrs
    627        "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/*.hpp"
    628        "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/*.hpp"
    629        "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/*.h"
    630   )
    631   file(GLOB lib_hdrs_detail
    632        "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/detail/*.hpp"
    633        "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/detail/*.h"
    634   )
    635   if (APPLE)
    636     file(GLOB_RECURSE lib_srcs_apple
    637          "${CMAKE_CURRENT_LIST_DIR}/src/*.mm"
    638     )
    639     list(APPEND lib_srcs ${lib_srcs_apple})
    640   endif()
    641 
    642   ocv_source_group("Src" DIRBASE "${CMAKE_CURRENT_LIST_DIR}/src" FILES ${lib_srcs} ${lib_int_hdrs})
    643   ocv_source_group("Include" DIRBASE "${CMAKE_CURRENT_LIST_DIR}/include" FILES ${lib_hdrs} ${lib_hdrs_detail})
    644 
    645   set(lib_cuda_srcs "")
    646   set(lib_cuda_hdrs "")
    647   if(HAVE_CUDA AND exclude_cuda EQUAL -1)
    648     file(GLOB lib_cuda_srcs
    649          "${CMAKE_CURRENT_LIST_DIR}/src/cuda/*.cu"
    650     )
    651     file(GLOB lib_cuda_hdrs
    652          "${CMAKE_CURRENT_LIST_DIR}/src/cuda/*.hpp"
    653     )
    654     source_group("Src\\Cuda"      FILES ${lib_cuda_srcs} ${lib_cuda_hdrs})
    655   endif()
    656 
    657   file(GLOB cl_kernels
    658        "${CMAKE_CURRENT_LIST_DIR}/src/opencl/*.cl"
    659   )
    660   if(cl_kernels)
    661     set(OCL_NAME opencl_kernels_${name})
    662     ocv_include_directories(${OPENCL_INCLUDE_DIRS})
    663     add_custom_command(
    664       OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp" "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.hpp"
    665       COMMAND ${CMAKE_COMMAND} -DMODULE_NAME="${name}" -DCL_DIR="${CMAKE_CURRENT_LIST_DIR}/src/opencl" -DOUTPUT="${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp" -P "${OpenCV_SOURCE_DIR}/cmake/cl2cpp.cmake"
    666       DEPENDS ${cl_kernels} "${OpenCV_SOURCE_DIR}/cmake/cl2cpp.cmake")
    667     ocv_source_group("Src\\opencl\\kernels" FILES ${cl_kernels})
    668     ocv_source_group("Src\\opencl\\kernels\\autogenerated" FILES "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp" "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.hpp")
    669     list(APPEND lib_srcs ${cl_kernels} "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp" "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.hpp")
    670   endif()
    671 
    672   ocv_set_module_sources(${_argn} HEADERS ${lib_hdrs} ${lib_hdrs_detail}
    673                          SOURCES ${lib_srcs} ${lib_int_hdrs} ${lib_cuda_srcs} ${lib_cuda_hdrs})
    674 endmacro()
    675 
    676 # creates OpenCV module in current folder
    677 # creates new target, configures standard dependencies, compilers flags, install rules
    678 # Usage:
    679 #   ocv_create_module(<extra link dependencies>)
    680 #   ocv_create_module()
    681 macro(ocv_create_module)
    682   ocv_debug_message("ocv_create_module(" ${ARGN} ")")
    683   set(OPENCV_MODULE_${the_module}_LINK_DEPS "${OPENCV_MODULE_${the_module}_LINK_DEPS};${ARGN}" CACHE INTERNAL "")
    684   if(${BUILD_opencv_world} AND OPENCV_MODULE_${the_module}_IS_PART_OF_WORLD)
    685     # nothing
    686     set(the_module_target opencv_world)
    687   else()
    688     _ocv_create_module(${ARGN})
    689     set(the_module_target ${the_module})
    690   endif()
    691 endmacro()
    692 
    693 macro(_ocv_create_module)
    694   # The condition we ought to be testing here is whether ocv_add_precompiled_headers will
    695   # be called at some point in the future. We can't look into the future, though,
    696   # so this will have to do.
    697   if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/src/precomp.hpp" AND NOT ${the_module} STREQUAL opencv_world)
    698     get_native_precompiled_header(${the_module} precomp.hpp)
    699   endif()
    700 
    701   set(sub_objs "")
    702   set(sub_links "")
    703   set(cuda_objs "")
    704   if (OPENCV_MODULE_${the_module}_CHILDREN)
    705     status("Complex module ${the_module}")
    706     foreach (m ${OPENCV_MODULE_${the_module}_CHILDREN})
    707       if (BUILD_${m} AND TARGET ${m}_object)
    708         get_target_property(_sub_links ${m} LINK_LIBRARIES)
    709         list(APPEND sub_objs $<TARGET_OBJECTS:${m}_object>)
    710         list(APPEND sub_links ${_sub_links})
    711         status("    + ${m}")
    712       else()
    713         status("    - ${m}")
    714       endif()
    715       list(APPEND cuda_objs ${OPENCV_MODULE_${m}_CUDA_OBJECTS})
    716     endforeach()
    717   endif()
    718 
    719   ocv_add_library(${the_module} ${OPENCV_MODULE_TYPE} ${OPENCV_MODULE_${the_module}_HEADERS} ${OPENCV_MODULE_${the_module}_SOURCES}
    720     "${OPENCV_CONFIG_FILE_INCLUDE_DIR}/cvconfig.h" "${OPENCV_CONFIG_FILE_INCLUDE_DIR}/opencv2/opencv_modules.hpp"
    721     ${${the_module}_pch} ${sub_objs})
    722 
    723   if (cuda_objs)
    724     target_link_libraries(${the_module} ${cuda_objs})
    725   endif()
    726 
    727   # TODO: is it needed?
    728   if (sub_links)
    729     ocv_list_filterout(sub_links "^opencv_")
    730     ocv_list_unique(sub_links)
    731     target_link_libraries(${the_module} ${sub_links})
    732   endif()
    733 
    734   unset(sub_objs)
    735   unset(sub_links)
    736   unset(cuda_objs)
    737 
    738   ocv_target_link_libraries(${the_module} ${OPENCV_MODULE_${the_module}_DEPS_TO_LINK})
    739   ocv_target_link_libraries(${the_module} LINK_INTERFACE_LIBRARIES ${OPENCV_MODULE_${the_module}_DEPS_TO_LINK})
    740   ocv_target_link_libraries(${the_module} ${OPENCV_MODULE_${the_module}_DEPS_EXT} ${OPENCV_LINKER_LIBS} ${IPP_LIBS} ${ARGN})
    741   if (HAVE_CUDA)
    742     ocv_target_link_libraries(${the_module} ${CUDA_LIBRARIES} ${CUDA_npp_LIBRARY})
    743   endif()
    744 
    745   add_dependencies(opencv_modules ${the_module})
    746 
    747   if(ENABLE_SOLUTION_FOLDERS)
    748     set_target_properties(${the_module} PROPERTIES FOLDER "modules")
    749   endif()
    750 
    751   set_target_properties(${the_module} PROPERTIES
    752     OUTPUT_NAME "${the_module}${OPENCV_DLLVERSION}"
    753     DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
    754     ARCHIVE_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_PATH}
    755     LIBRARY_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_PATH}
    756     RUNTIME_OUTPUT_DIRECTORY ${EXECUTABLE_OUTPUT_PATH}
    757     INSTALL_NAME_DIR lib
    758   )
    759 
    760   # For dynamic link numbering convenions
    761   if(NOT ANDROID)
    762     # Android SDK build scripts can include only .so files into final .apk
    763     # As result we should not set version properties for Android
    764     set_target_properties(${the_module} PROPERTIES
    765       VERSION ${OPENCV_LIBVERSION}
    766       SOVERSION ${OPENCV_SOVERSION}
    767     )
    768   endif()
    769 
    770   if((NOT DEFINED OPENCV_MODULE_TYPE AND BUILD_SHARED_LIBS)
    771       OR (DEFINED OPENCV_MODULE_TYPE AND OPENCV_MODULE_TYPE STREQUAL SHARED))
    772     set_target_properties(${the_module} PROPERTIES COMPILE_DEFINITIONS CVAPI_EXPORTS)
    773     set_target_properties(${the_module} PROPERTIES DEFINE_SYMBOL CVAPI_EXPORTS)
    774   endif()
    775 
    776   if(MSVC)
    777     if(CMAKE_CROSSCOMPILING)
    778       set_target_properties(${the_module} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:secchk")
    779     endif()
    780     set_target_properties(${the_module} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:libc /DEBUG")
    781   endif()
    782 
    783   ocv_install_target(${the_module} EXPORT OpenCVModules OPTIONAL
    784     RUNTIME DESTINATION ${OPENCV_BIN_INSTALL_PATH} COMPONENT libs
    785     LIBRARY DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT libs NAMELINK_SKIP
    786     ARCHIVE DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT dev
    787     )
    788   get_target_property(_target_type ${the_module} TYPE)
    789   if("${_target_type}" STREQUAL "SHARED_LIBRARY")
    790     install(TARGETS ${the_module}
    791       LIBRARY DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT dev NAMELINK_ONLY)
    792   endif()
    793 
    794   foreach(m ${OPENCV_MODULE_${the_module}_CHILDREN} ${the_module})
    795     # only "public" headers need to be installed
    796     if(OPENCV_MODULE_${m}_HEADERS AND ";${OPENCV_MODULES_PUBLIC};" MATCHES ";${m};")
    797       foreach(hdr ${OPENCV_MODULE_${m}_HEADERS})
    798         string(REGEX REPLACE "^.*opencv2/" "opencv2/" hdr2 "${hdr}")
    799         if(NOT hdr2 MATCHES "opencv2/${m}/private.*" AND hdr2 MATCHES "^(opencv2/?.*)/[^/]+.h(..)?$" )
    800           install(FILES ${hdr} OPTIONAL DESTINATION "${OPENCV_INCLUDE_INSTALL_PATH}/${CMAKE_MATCH_1}" COMPONENT dev)
    801         endif()
    802       endforeach()
    803     endif()
    804   endforeach()
    805 
    806   _ocv_add_precompiled_headers(${the_module})
    807 
    808   if (TARGET ${the_module}_object)
    809     # copy COMPILE_DEFINITIONS
    810     get_target_property(main_defs ${the_module} COMPILE_DEFINITIONS)
    811     if (main_defs)
    812       set_target_properties(${the_module}_object PROPERTIES COMPILE_DEFINITIONS ${main_defs})
    813     endif()
    814     # use same PCH
    815     if (TARGET pch_Generate_${the_module})
    816       add_dependencies(${the_module}_object pch_Generate_${the_module} )
    817     endif()
    818   endif()
    819 endmacro()
    820 
    821 # opencv precompiled headers macro (can add pch to modules and tests)
    822 # this macro must be called after any "add_definitions" commands, otherwise precompiled headers will not work
    823 # Usage:
    824 # ocv_add_precompiled_headers(${the_module})
    825 macro(_ocv_add_precompiled_headers the_target)
    826   ocv_debug_message("ocv_add_precompiled_headers(" ${the_target} ${ARGN} ")")
    827 
    828   if("${the_target}" MATCHES "^opencv_test_.*$")
    829     SET(pch_path "test/test_")
    830   elseif("${the_target}" MATCHES "^opencv_perf_.*$")
    831     SET(pch_path "perf/perf_")
    832   else()
    833     SET(pch_path "src/")
    834   endif()
    835   ocv_add_precompiled_header_to_target(${the_target} "${CMAKE_CURRENT_SOURCE_DIR}/${pch_path}precomp.hpp")
    836   unset(pch_path)
    837 endmacro()
    838 
    839 # short command for adding simple OpenCV module
    840 # see ocv_add_module for argument details
    841 # Usage:
    842 # ocv_define_module(module_name  [INTERNAL] [EXCLUDE_CUDA] [REQUIRED] [<list of dependencies>] [OPTIONAL <list of optional dependencies>] [WRAP <list of wrappers>])
    843 macro(ocv_define_module module_name)
    844   ocv_debug_message("ocv_define_module(" ${module_name} ${ARGN} ")")
    845   set(_argn ${ARGN})
    846   set(exclude_cuda "")
    847   foreach(arg ${_argn})
    848     if("${arg}" STREQUAL "EXCLUDE_CUDA")
    849       set(exclude_cuda "${arg}")
    850       list(REMOVE_ITEM _argn ${arg})
    851     endif()
    852   endforeach()
    853 
    854   ocv_add_module(${module_name} ${_argn})
    855   ocv_glob_module_sources(${exclude_cuda})
    856   ocv_module_include_directories()
    857   ocv_create_module()
    858 
    859   ocv_add_accuracy_tests()
    860   ocv_add_perf_tests()
    861   ocv_add_samples()
    862 endmacro()
    863 
    864 # ensures that all passed modules are available
    865 # sets OCV_DEPENDENCIES_FOUND variable to TRUE/FALSE
    866 macro(ocv_check_dependencies)
    867   set(OCV_DEPENDENCIES_FOUND TRUE)
    868   foreach(d ${ARGN})
    869     if(d MATCHES "^opencv_[^ ]+$" AND NOT HAVE_${d})
    870       set(OCV_DEPENDENCIES_FOUND FALSE)
    871       break()
    872     endif()
    873   endforeach()
    874 endmacro()
    875 
    876 # auxiliary macro to parse arguments of ocv_add_accuracy_tests and ocv_add_perf_tests commands
    877 macro(__ocv_parse_test_sources tests_type)
    878   set(OPENCV_${tests_type}_${the_module}_SOURCES "")
    879   set(OPENCV_${tests_type}_${the_module}_DEPS "")
    880   set(__file_group_name "")
    881   set(__file_group_sources "")
    882   foreach(arg "DEPENDS_ON" ${ARGN} "FILES")
    883     if(arg STREQUAL "FILES")
    884       set(__currentvar "__file_group_sources")
    885       if(__file_group_name AND __file_group_sources)
    886         source_group("${__file_group_name}" FILES ${__file_group_sources})
    887         list(APPEND OPENCV_${tests_type}_${the_module}_SOURCES ${__file_group_sources})
    888       endif()
    889       set(__file_group_name "")
    890       set(__file_group_sources "")
    891     elseif(arg STREQUAL "DEPENDS_ON")
    892       set(__currentvar "OPENCV_${tests_type}_${the_module}_DEPS")
    893     elseif(" ${__currentvar}" STREQUAL " __file_group_sources" AND NOT __file_group_name) # spaces to avoid CMP0054
    894       set(__file_group_name "${arg}")
    895     else()
    896       list(APPEND ${__currentvar} "${arg}")
    897     endif()
    898   endforeach()
    899   unset(__file_group_name)
    900   unset(__file_group_sources)
    901   unset(__currentvar)
    902 endmacro()
    903 
    904 # this is a command for adding OpenCV performance tests to the module
    905 # ocv_add_perf_tests(<extra_dependencies>)
    906 function(ocv_add_perf_tests)
    907   ocv_debug_message("ocv_add_perf_tests(" ${ARGN} ")")
    908 
    909   set(perf_path "${CMAKE_CURRENT_LIST_DIR}/perf")
    910   if(BUILD_PERF_TESTS AND EXISTS "${perf_path}")
    911     __ocv_parse_test_sources(PERF ${ARGN})
    912 
    913     # opencv_imgcodecs is required for imread/imwrite
    914     set(perf_deps opencv_ts ${the_module} opencv_imgcodecs ${OPENCV_MODULE_${the_module}_DEPS} ${OPENCV_MODULE_opencv_ts_DEPS})
    915     ocv_check_dependencies(${perf_deps})
    916 
    917     if(OCV_DEPENDENCIES_FOUND)
    918       set(the_target "opencv_perf_${name}")
    919       # project(${the_target})
    920 
    921       if(NOT OPENCV_PERF_${the_module}_SOURCES)
    922         file(GLOB_RECURSE perf_srcs "${perf_path}/*.cpp")
    923         file(GLOB_RECURSE perf_hdrs "${perf_path}/*.hpp" "${perf_path}/*.h")
    924         ocv_source_group("Src" DIRBASE "${perf_path}" FILES ${perf_srcs})
    925         ocv_source_group("Include" DIRBASE "${perf_path}" FILES ${perf_hdrs})
    926         set(OPENCV_PERF_${the_module}_SOURCES ${perf_srcs} ${perf_hdrs})
    927       endif()
    928 
    929       if(NOT BUILD_opencv_world)
    930         get_native_precompiled_header(${the_target} perf_precomp.hpp)
    931       endif()
    932 
    933       ocv_add_executable(${the_target} ${OPENCV_PERF_${the_module}_SOURCES} ${${the_target}_pch})
    934       ocv_target_include_modules(${the_target} ${perf_deps} "${perf_path}")
    935       ocv_target_link_libraries(${the_target} ${perf_deps} ${OPENCV_MODULE_${the_module}_DEPS} ${OPENCV_LINKER_LIBS})
    936       add_dependencies(opencv_perf_tests ${the_target})
    937 
    938       # Additional target properties
    939       set_target_properties(${the_target} PROPERTIES
    940         DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
    941         RUNTIME_OUTPUT_DIRECTORY "${EXECUTABLE_OUTPUT_PATH}"
    942       )
    943 
    944       if(ENABLE_SOLUTION_FOLDERS)
    945         set_target_properties(${the_target} PROPERTIES FOLDER "tests performance")
    946       endif()
    947 
    948       if(NOT BUILD_opencv_world)
    949         _ocv_add_precompiled_headers(${the_target})
    950       endif()
    951     else(OCV_DEPENDENCIES_FOUND)
    952       # TODO: warn about unsatisfied dependencies
    953     endif(OCV_DEPENDENCIES_FOUND)
    954     if(INSTALL_TESTS)
    955       install(TARGETS ${the_target} RUNTIME DESTINATION ${OPENCV_TEST_INSTALL_PATH} COMPONENT tests)
    956     endif()
    957   endif()
    958 endfunction()
    959 
    960 # this is a command for adding OpenCV accuracy/regression tests to the module
    961 # ocv_add_accuracy_tests([FILES <source group name> <list of sources>] [DEPENDS_ON] <list of extra dependencies>)
    962 function(ocv_add_accuracy_tests)
    963   ocv_debug_message("ocv_add_accuracy_tests(" ${ARGN} ")")
    964 
    965   set(test_path "${CMAKE_CURRENT_LIST_DIR}/test")
    966   if(BUILD_TESTS AND EXISTS "${test_path}")
    967     __ocv_parse_test_sources(TEST ${ARGN})
    968 
    969     # opencv_imgcodecs is required for imread/imwrite
    970     set(test_deps opencv_ts ${the_module} opencv_imgcodecs opencv_videoio ${OPENCV_MODULE_${the_module}_DEPS} ${OPENCV_MODULE_opencv_ts_DEPS})
    971     ocv_check_dependencies(${test_deps})
    972     if(OCV_DEPENDENCIES_FOUND)
    973       set(the_target "opencv_test_${name}")
    974       # project(${the_target})
    975 
    976       if(NOT OPENCV_TEST_${the_module}_SOURCES)
    977         file(GLOB_RECURSE test_srcs "${test_path}/*.cpp")
    978         file(GLOB_RECURSE test_hdrs "${test_path}/*.hpp" "${test_path}/*.h")
    979         ocv_source_group("Src" DIRBASE "${test_path}" FILES ${test_srcs})
    980         ocv_source_group("Include" DIRBASE "${test_path}" FILES ${test_hdrs})
    981         set(OPENCV_TEST_${the_module}_SOURCES ${test_srcs} ${test_hdrs})
    982       endif()
    983 
    984       if(NOT BUILD_opencv_world)
    985         get_native_precompiled_header(${the_target} test_precomp.hpp)
    986       endif()
    987 
    988       ocv_add_executable(${the_target} ${OPENCV_TEST_${the_module}_SOURCES} ${${the_target}_pch})
    989       ocv_target_include_modules(${the_target} ${test_deps} "${test_path}")
    990       ocv_target_link_libraries(${the_target} ${test_deps} ${OPENCV_MODULE_${the_module}_DEPS} ${OPENCV_LINKER_LIBS})
    991       add_dependencies(opencv_tests ${the_target})
    992 
    993       # Additional target properties
    994       set_target_properties(${the_target} PROPERTIES
    995         DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
    996         RUNTIME_OUTPUT_DIRECTORY "${EXECUTABLE_OUTPUT_PATH}"
    997       )
    998 
    999       if(ENABLE_SOLUTION_FOLDERS)
   1000         set_target_properties(${the_target} PROPERTIES FOLDER "tests accuracy")
   1001       endif()
   1002 
   1003       enable_testing()
   1004       get_target_property(LOC ${the_target} LOCATION)
   1005       add_test(${the_target} "${LOC}")
   1006 
   1007       if(NOT BUILD_opencv_world)
   1008         _ocv_add_precompiled_headers(${the_target})
   1009       endif()
   1010     else(OCV_DEPENDENCIES_FOUND)
   1011       # TODO: warn about unsatisfied dependencies
   1012     endif(OCV_DEPENDENCIES_FOUND)
   1013 
   1014     if(INSTALL_TESTS)
   1015       install(TARGETS ${the_target} RUNTIME DESTINATION ${OPENCV_TEST_INSTALL_PATH} COMPONENT tests)
   1016     endif()
   1017   endif()
   1018 endfunction()
   1019 
   1020 function(ocv_add_samples)
   1021   ocv_debug_message("ocv_add_samples(" ${ARGN} ")")
   1022 
   1023   set(samples_path "${CMAKE_CURRENT_SOURCE_DIR}/samples")
   1024   string(REGEX REPLACE "^opencv_" "" module_id ${the_module})
   1025 
   1026   if(BUILD_EXAMPLES AND EXISTS "${samples_path}")
   1027     set(samples_deps ${the_module} ${OPENCV_MODULE_${the_module}_DEPS} opencv_imgcodecs opencv_videoio opencv_highgui ${ARGN})
   1028     ocv_check_dependencies(${samples_deps})
   1029 
   1030     if(OCV_DEPENDENCIES_FOUND)
   1031       file(GLOB sample_sources "${samples_path}/*.cpp")
   1032 
   1033       foreach(source ${sample_sources})
   1034         get_filename_component(name "${source}" NAME_WE)
   1035         set(the_target "example_${module_id}_${name}")
   1036 
   1037         ocv_add_executable(${the_target} "${source}")
   1038         ocv_target_include_modules(${the_target} ${samples_deps})
   1039         ocv_target_link_libraries(${the_target} ${samples_deps})
   1040         set_target_properties(${the_target} PROPERTIES PROJECT_LABEL "(sample) ${name}")
   1041 
   1042         if(ENABLE_SOLUTION_FOLDERS)
   1043           set_target_properties(${the_target} PROPERTIES
   1044             OUTPUT_NAME "${module_id}-example-${name}"
   1045             FOLDER "samples/${module_id}")
   1046         endif()
   1047 
   1048         if(WIN32)
   1049           install(TARGETS ${the_target} RUNTIME DESTINATION "samples/${module_id}" COMPONENT samples)
   1050         endif()
   1051       endforeach()
   1052     endif()
   1053   endif()
   1054 
   1055   if(INSTALL_C_EXAMPLES AND NOT WIN32 AND EXISTS "${samples_path}")
   1056   file(GLOB DEPLOY_FILES_AND_DIRS "${samples_path}/*")
   1057     foreach(ITEM ${DEPLOY_FILES_AND_DIRS})
   1058         IF( IS_DIRECTORY "${ITEM}" )
   1059             LIST( APPEND sample_dirs "${ITEM}" )
   1060         ELSE()
   1061             LIST( APPEND sample_files "${ITEM}" )
   1062         ENDIF()
   1063     endforeach()
   1064     install(FILES ${sample_files}
   1065             DESTINATION ${OPENCV_SAMPLES_SRC_INSTALL_PATH}/${module_id}
   1066             PERMISSIONS OWNER_READ GROUP_READ WORLD_READ COMPONENT samples)
   1067     install(DIRECTORY ${sample_dirs}
   1068             DESTINATION ${OPENCV_SAMPLES_SRC_INSTALL_PATH}/${module_id}
   1069             USE_SOURCE_PERMISSIONS COMPONENT samples)
   1070   endif()
   1071 endfunction()
   1072