add openmp flag in windows

deploy/cpp/CMakeLists.txt

@@ -114,6 +114,14 @@ include_directories(${OpenCV_INCLUDE_DIRS})
 
 if (WIN32)
     add_definitions("/DGOOGLE_GLOG_DLL_DECL=")
+    find_package(OpenMP REQUIRED)
+    if (OPENMP_FOUND)
+        message("OPENMP FOUND")
+        set(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS_DEBUG} ${OpenMP_C_FLAGS}")
+        set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} ${OpenMP_C_FLAGS}")
+        set(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} ${OpenMP_CXX_FLAGS}")
+        set(CMAKE_CXX_FLAGS_RELEASE   "${CMAKE_CXX_FLAGS_RELEASE} ${OpenMP_CXX_FLAGS}")
+    endif()
     set(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS_DEBUG} /bigobj /MTd")
     set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} /bigobj /MT")
     set(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} /bigobj /MTd")

deploy/cpp/CMakeSettings.json

@@ -27,11 +27,6 @@
                     "type": "PATH"
                 },
                 {
-                    "name": "CMAKE_BUILD_TYPE",
-                    "value": "Release",
-                    "type": "STRING"
-                },
-                {
                     "name": "WITH_STATIC_LIB",
                     "value": "True",
                     "type": "BOOL"