Merge pull request #18496 from AsyaPronina:comp_args_serialization

Serialization && deserialization for compile arguments

* Initial stub

* Add test on serialization of a custom type

* Namespaces rework

* Fix isSupported in test struct

* Fix clang lookup issue

* Initial implementation

* Drop the isSupported flag

* Initial implementation

* Removed internal header inclusion

* Switched to public API

* Implemented serialization

* Adding desirialize: WIP

* Fixed merge errors

* Implemented

* Final polishing

* Addressed review comments and added debug throw

* Added FluidROI test

* Polishing

* Polishing

* Polishing

* Polishing

* Polishing

* Updated CMakeLists.txt

* Fixed comments

* Addressed review comments

* Removed decay from deserialize_arg

* Addressed review comments

* Removed extra inclusion

* Fixed Win64 warning

* Update gcommon.hpp

* Update serialization.cpp

* Update gcommon.hpp

* gapi: drop GAPI_EXPORTS_W_SIMPLE from GCompileArg

Co-authored-by: Smirnov Alexey <alexey.smirnov@intel.com>
Co-authored-by: AsyaPronina <155jj@mail.ru>

modules/gapi/test/cpu/gapi_ocv_stateful_kernel_tests.cpp

@@ -21,7 +21,7 @@ namespace opencv_test
     {
         std::string method;
     };
-}
+} // namespace opencv_test
 
 namespace cv
 {
@@ -31,11 +31,11 @@ namespace cv
         {
             static const char* tag()
             {
-                return "org.opencv.test..background_substractor_state_params";
+                return "org.opencv.test.background_substractor_state_params";
             }
         };
-    }
-}
+    } // namespace detail
+} // namespace cv
 
 namespace opencv_test
 {

modules/gapi/test/s11n/gapi_s11n_tests.cpp

@@ -34,6 +34,17 @@ namespace detail {
 } // namespace gapi
 } // namespace cv
 
+
+namespace cv {
+namespace detail {
+template<> struct CompileArgTag<MyCustomType> {
+    static const char* tag() {
+        return "org.opencv.test.mycustomtype";
+    }
+};
+} // namespace detail
+} // namespace cv
+
 namespace opencv_test {
 
 struct S11N_Basic: public ::testing::Test {
@@ -511,4 +522,15 @@ TEST_F(S11N_Basic, Test_Custom_Type) {
     MyCustomType new_var = cv::gapi::s11n::detail::S11N<MyCustomType>::deserialize(is);
     EXPECT_EQ(var, new_var);
 }
+
+TEST_F(S11N_Basic, Test_Custom_CompileArg) {
+    MyCustomType customVar{1248, "World", {1280, 720, 640, 480}, {{5, 32434142342}, {7, 34242432}}};
+
+    std::vector<char> sArgs = cv::gapi::serialize(cv::compile_args(customVar));
+
+    GCompileArgs dArgs = cv::gapi::deserialize<GCompileArgs, MyCustomType>(sArgs);
+
+    MyCustomType dCustomVar = cv::gapi::getCompileArg<MyCustomType>(dArgs).value();
+    EXPECT_EQ(customVar, dCustomVar);
+}
 } // namespace opencv_test