NGraph FrontEnd Manager - Basic API

ngraph/CMakeLists.txt

@@ -26,6 +26,15 @@ set(NGRAPH_INCLUDE_PATH
     ${CMAKE_CURRENT_SOURCE_DIR}/core/include
 )
 
+set(FRONTEND_INCLUDE_PATH
+    ${CMAKE_CURRENT_SOURCE_DIR}/frontend/frontend_manager/include
+)
+
+# Will be used by frontends to construct frontend-specific source location paths
+set(FRONTEND_BASE_PATH
+    ${CMAKE_CURRENT_SOURCE_DIR}/frontend
+)
+
 if (APPLE)
     # Enable MACOS_RPATH by default.
     cmake_policy(SET CMP0042 NEW)

ngraph/frontend/CMakeLists.txt

@@ -2,6 +2,8 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
+add_subdirectory(frontend_manager)
+
 if (NGRAPH_ONNX_IMPORT_ENABLE)
     add_subdirectory(onnx_common)
     add_subdirectory(onnx_import)

ngraph/frontend/frontend_manager/CMakeLists.txt

@@ -0,0 +1,35 @@
+# Copyright (C) 2018-2021 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+#
+
+set(TARGET_NAME "frontend_manager")
+
+file(GLOB_RECURSE LIBRARY_SRC ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)
+file(GLOB_RECURSE LIBRARY_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/src/*.hpp)
+file(GLOB_RECURSE LIBRARY_PUBLIC_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp)
+
+set(FRONTEND_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+source_group("src" FILES ${LIBRARY_SRC})
+source_group("include" FILES ${LIBRARY_HEADERS})
+source_group("public include" FILES ${LIBRARY_PUBLIC_HEADERS})
+
+# Create shared library
+add_library(${TARGET_NAME} SHARED ${LIBRARY_SRC} ${LIBRARY_HEADERS} ${LIBRARY_PUBLIC_HEADERS})
+add_library(ngraph::${TARGET_NAME} ALIAS ${TARGET_NAME})
+
+target_link_libraries(${TARGET_NAME} PRIVATE ${CMAKE_DL_LIBS} ngraph)
+
+add_clang_format_target(${TARGET_NAME}_clang FOR_TARGETS ${TARGET_NAME})
+
+if(COMMAND ie_add_vs_version_file)
+    ie_add_vs_version_file(NAME ${TARGET_NAME}
+                           FILEDESCRIPTION "Manager of OpenVINO nGraph Frontends")
+endif()
+
+set(FRONTEND_INSTALL_INCLUDE "${NGRAPH_INSTALL_INCLUDE}/ngraph/frontend/frontend_manager")
+target_include_directories(${TARGET_NAME} PUBLIC $<BUILD_INTERFACE:${FRONTEND_INCLUDE_DIR}>
+                                                       $<INSTALL_INTERFACE:${FRONTEND_INSTALL_INCLUDE}>)
+target_include_directories(${TARGET_NAME} PRIVATE ${NGRAPH_INCLUDE_PATH} ${FRONTEND_INCLUDE_DIR})
+
+target_include_directories(${TARGET_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)

ngraph/frontend/frontend_manager/include/frontend_manager/frontend_manager_defs.hpp

@@ -0,0 +1,17 @@
+// Copyright (C) 2018-2021 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+//
+
+#pragma once
+
+#include "ngraph/visibility.hpp"
+
+// Increment each time when FrontEnd/InputModel/Place interface is changed
+#define OV_FRONTEND_API_VERSION 1
+
+// Defined if cmake is building the frontend_manager DLL (instead of using it)
+#ifdef frontend_manager_EXPORTS
+#define FRONTEND_API NGRAPH_HELPER_DLL_EXPORT
+#else
+#define FRONTEND_API NGRAPH_HELPER_DLL_IMPORT
+#endif // frontend_manager_EXPORTS