Merge pull request opencv#21591 from alalek:dnn_drop_legacy_ie

Author: alalek

cmake/OpenCVDetectInferenceEngine.cmake

@@ -23,80 +23,6 @@ endif()
 
 # ======================
 
-macro(ocv_ie_find_extra_libraries find_prefix find_suffix)
-  file(GLOB libraries "${INF_ENGINE_LIB_DIRS}/${find_prefix}inference_engine*${find_suffix}")
-  foreach(full_path IN LISTS libraries)
-    get_filename_component(library "${full_path}" NAME_WE)
-    string(REPLACE "${find_prefix}" "" library "${library}")
-    if(library STREQUAL "inference_engine" OR library STREQUAL "inference_engined")
-      # skip
-    else()
-      add_library(${library} UNKNOWN IMPORTED)
-      set_target_properties(${library} PROPERTIES
-          IMPORTED_LOCATION "${full_path}")
-      list(APPEND custom_libraries ${library})
-    endif()
-  endforeach()
-endmacro()
-
-function(add_custom_ie_build _inc _lib _lib_rel _lib_dbg _msg)
-  if(NOT _inc OR NOT (_lib OR _lib_rel OR _lib_dbg))
-    return()
-  endif()
-  if(NOT _lib)
-    if(_lib_rel)
-      set(_lib "${_lib_rel}")
-    else()
-      set(_lib "${_lib_dbg}")
-    endif()
-  endif()
-  add_library(inference_engine UNKNOWN IMPORTED)
-  set_target_properties(inference_engine PROPERTIES
-    IMPORTED_LOCATION "${_lib}"
-    IMPORTED_IMPLIB_RELEASE "${_lib_rel}"
-    IMPORTED_IMPLIB_DEBUG "${_lib_dbg}"
-    INTERFACE_INCLUDE_DIRECTORIES "${_inc}"
-  )
-
-  set(custom_libraries "")
-  set(__prefixes "${CMAKE_FIND_LIBRARY_PREFIXES}")
-  if(NOT __prefixes)
-    set(__prefixes "_empty_")
-  endif()
-  foreach(find_prefix ${__prefixes})
-    if(find_prefix STREQUAL "_empty_")  # foreach doesn't iterate over empty elements
-      set(find_prefix "")
-    endif()
-    if(NOT DEFINED INFERENCE_ENGINE_FIND_LIBRARY_SUFFIXES)  # allow custom override
-      set(INFERENCE_ENGINE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
-      if(APPLE)
-        ocv_list_filterout(INFERENCE_ENGINE_FIND_LIBRARY_SUFFIXES "^.so$")  # skip plugins (can't be linked)
-      endif()
-    endif()
-    foreach(find_suffix ${INFERENCE_ENGINE_FIND_LIBRARY_SUFFIXES})
-      ocv_ie_find_extra_libraries("${find_prefix}" "${find_suffix}")
-    endforeach()
-    if(NOT CMAKE_FIND_LIBRARY_SUFFIXES)
-      ocv_ie_find_extra_libraries("${find_prefix}" "")
-    endif()
-  endforeach()
-
-  if(NOT INF_ENGINE_RELEASE VERSION_GREATER "2018050000")
-    find_library(INF_ENGINE_OMP_LIBRARY iomp5 PATHS "${INF_ENGINE_OMP_DIR}" NO_DEFAULT_PATH)
-    if(NOT INF_ENGINE_OMP_LIBRARY)
-      message(WARNING "OpenMP for IE have not been found. Set INF_ENGINE_OMP_DIR variable if you experience build errors.")
-    endif()
-  endif()
-  if(EXISTS "${INF_ENGINE_OMP_LIBRARY}")
-    set_target_properties(inference_engine PROPERTIES IMPORTED_LINK_INTERFACE_LIBRARIES "${INF_ENGINE_OMP_LIBRARY}")
-  endif()
-  set(INF_ENGINE_VERSION "Unknown" CACHE STRING "")
-  set(INF_ENGINE_TARGET "inference_engine;${custom_libraries}" PARENT_SCOPE)
-  message(STATUS "Detected InferenceEngine: ${_msg}")
-endfunction()
-
-# ======================
-
 find_package(InferenceEngine QUIET)
 if(InferenceEngine_FOUND)
   set(INF_ENGINE_TARGET ${InferenceEngine_LIBRARIES})
@@ -118,38 +44,6 @@ elseif(DEFINED INF_ENGINE_RELEASE)
 endif()
 set(INF_ENGINE_RELEASE "${INF_ENGINE_RELEASE_INIT}" CACHE STRING "Force IE version, should be in form YYYYAABBCC (e.g. 2020.1.0.2 -> 2020010002)")
 
-if(NOT INF_ENGINE_TARGET AND INF_ENGINE_LIB_DIRS AND INF_ENGINE_INCLUDE_DIRS)
-  find_path(ie_custom_inc "inference_engine.hpp" PATHS "${INF_ENGINE_INCLUDE_DIRS}" NO_DEFAULT_PATH)
-  if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-    find_library(ie_custom_lib_dbg "inference_engined" PATHS "${INF_ENGINE_LIB_DIRS}" NO_DEFAULT_PATH)  # Win32 and MacOSX
-  endif()
-  find_library(ie_custom_lib "inference_engine" PATHS "${INF_ENGINE_LIB_DIRS}" NO_DEFAULT_PATH)
-  find_library(ie_custom_lib_rel "inference_engine" PATHS "${INF_ENGINE_LIB_DIRS}/Release" NO_DEFAULT_PATH)
-  find_library(ie_custom_lib_dbg "inference_engine" PATHS "${INF_ENGINE_LIB_DIRS}/Debug" NO_DEFAULT_PATH)
-  add_custom_ie_build("${ie_custom_inc}" "${ie_custom_lib}" "${ie_custom_lib_rel}" "${ie_custom_lib_dbg}" "INF_ENGINE_{INCLUDE,LIB}_DIRS")
-endif()
-
-set(_loc "$ENV{INTEL_OPENVINO_DIR}")
-if(NOT _loc AND DEFINED ENV{INTEL_CVSDK_DIR})
-  set(_loc "$ENV{INTEL_CVSDK_DIR}")  # OpenVINO 2018.x
-endif()
-if(NOT INF_ENGINE_TARGET AND _loc)
-  if(NOT INF_ENGINE_RELEASE VERSION_GREATER "2018050000")
-    set(INF_ENGINE_PLATFORM_DEFAULT "ubuntu_16.04")
-  else()
-    set(INF_ENGINE_PLATFORM_DEFAULT "")
-  endif()
-  set(INF_ENGINE_PLATFORM "${INF_ENGINE_PLATFORM_DEFAULT}" CACHE STRING "InferenceEngine platform (library dir)")
-  find_path(ie_custom_env_inc "inference_engine.hpp" PATHS "${_loc}/deployment_tools/inference_engine/include" NO_DEFAULT_PATH)
-  if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-    find_library(ie_custom_env_lib_dbg "inference_engined" PATHS "${_loc}/deployment_tools/inference_engine/lib/${INF_ENGINE_PLATFORM}/intel64" NO_DEFAULT_PATH)
-  endif()
-  find_library(ie_custom_env_lib "inference_engine" PATHS "${_loc}/deployment_tools/inference_engine/lib/${INF_ENGINE_PLATFORM}/intel64" NO_DEFAULT_PATH)
-  find_library(ie_custom_env_lib_rel "inference_engine" PATHS "${_loc}/deployment_tools/inference_engine/lib/intel64/Release" NO_DEFAULT_PATH)
-  find_library(ie_custom_env_lib_dbg "inference_engine" PATHS "${_loc}/deployment_tools/inference_engine/lib/intel64/Debug" NO_DEFAULT_PATH)
-  add_custom_ie_build("${ie_custom_env_inc}" "${ie_custom_env_lib}" "${ie_custom_env_lib_rel}" "${ie_custom_env_lib_dbg}" "OpenVINO (${_loc})")
-endif()
-
 set(tgts)
 set(defs)
 

modules/dnn/CMakeLists.txt

@@ -115,7 +115,12 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
 endif()
 
 set(dnn_runtime_libs "")
-if(TARGET ocv.3rdparty.openvino)
+
+ocv_option(OPENCV_DNN_OPENVINO "Build with OpenVINO support (2021.4+)" (TARGET ocv.3rdparty.openvino))
+if(TARGET ocv.3rdparty.openvino AND OPENCV_DNN_OPENVINO)
+  if(NOT HAVE_OPENVINO AND NOT HAVE_NGRAPH)
+    message(FATAL_ERROR "DNN: Inference Engine is not supported without enabled 'nGraph'. Check build configuration.")
+  endif()
   list(APPEND dnn_runtime_libs ocv.3rdparty.openvino)
 endif()
 

modules/dnn/include/opencv2/dnn/dnn.hpp

@@ -284,8 +284,6 @@ CV__DNN_EXPERIMENTAL_NS_BEGIN
          */
         virtual Ptr<BackendNode> initHalide(const std::vector<Ptr<BackendWrapper> > &inputs);
 
-        virtual Ptr<BackendNode> initInfEngine(const std::vector<Ptr<BackendWrapper> > &inputs);
-
         virtual Ptr<BackendNode> initNgraph(const std::vector<Ptr<BackendWrapper> > &inputs, const std::vector<Ptr<BackendNode> >& nodes);
 
        /**

modules/dnn/include/opencv2/dnn/utils/inference_engine.hpp

@@ -15,14 +15,18 @@ CV__DNN_EXPERIMENTAL_NS_BEGIN
 
 
 /* Values for 'OPENCV_DNN_BACKEND_INFERENCE_ENGINE_TYPE' parameter */
+/// @deprecated
 #define CV_DNN_BACKEND_INFERENCE_ENGINE_NN_BUILDER_API     "NN_BUILDER"
+/// @deprecated
 #define CV_DNN_BACKEND_INFERENCE_ENGINE_NGRAPH             "NGRAPH"
 
 /** @brief Returns Inference Engine internal backend API.
  *
  * See values of `CV_DNN_BACKEND_INFERENCE_ENGINE_*` macros.
  *
- * Default value is controlled through `OPENCV_DNN_BACKEND_INFERENCE_ENGINE_TYPE` runtime parameter (environment variable).
+ * `OPENCV_DNN_BACKEND_INFERENCE_ENGINE_TYPE` runtime parameter (environment variable) is ignored since 4.6.0.
+ *
+ * @deprecated
  */
 CV_EXPORTS_W cv::String getInferenceEngineBackendType();
 
@@ -31,6 +35,8 @@ CV_EXPORTS_W cv::String getInferenceEngineBackendType();
  * See values of `CV_DNN_BACKEND_INFERENCE_ENGINE_*` macros.
  *
  * @returns previous value of internal backend API
+ *
+ * @deprecated
  */
 CV_EXPORTS_W cv::String setInferenceEngineBackendType(const cv::String& newBackendType);