1 // This file is part of OpenCV project.
2 // It is subject to the license terms in the LICENSE file found in the top-level directory
3 // of this distribution and at http://opencv.org/license.html.
4 //
5 // Copyright (C) 2021 Intel Corporation
6
7 #ifndef OPENCV_GAPI_ITT_HPP
8 #define OPENCV_GAPI_ITT_HPP
9
10 // for GAPI_ITT_NAMED_TRACE_GUARD
11 #include <type_traits>
12 #include <memory>
13
14 #include <opencv2/gapi/util/compiler_hints.hpp>
15
16 // NOTE: OPENCV_WITH_ITT is only defined if ITT dependecy is built by OpenCV infrastructure.
17 // There will not be such define in G-API standalone mode.
18 // TODO: Consider using OpenCV's trace.hpp
19 #if defined(OPENCV_WITH_ITT)
20 #include <ittnotify.h>
21
22 namespace cv {
23 namespace util {
24 template< class T >
25 using remove_reference_t = typename std::remove_reference<T>::type;
26
27 // Home brew ScopeGuard
28 // D will be called automatically with p as argument when ScopeGuard goes out of scope.
29 // call release() on the ScopeGuard object to revoke guard action
30 template<typename T, typename D>
make_ptr_guard(T * p,D && d)31 auto make_ptr_guard(T* p, D&& d) -> std::unique_ptr<T, util::remove_reference_t<D>> {
32 return {p, std::forward<D>(d)};
33 }
34 } // namespace util
35
36 namespace gimpl {
37 extern __itt_domain* gapi_itt_domain;
38 namespace {
__anon2a46baf90202(__itt_string_handle* h) 39 auto make_itt_guard = [](__itt_string_handle* h) {
40 __itt_task_begin(gapi_itt_domain, __itt_null, __itt_null, (h));
41 return util::make_ptr_guard(reinterpret_cast<int*>(1),
42 [](int* ){ __itt_task_end(gapi_itt_domain); });
43 };
44 } // namespace
45 } // namespace gimpl
46 } // namespace cv
47
48 #define GAPI_ITT_NAMED_TRACE_GUARD(name, h) auto name = cv::gimpl::make_itt_guard(h); \
49 cv::util::suppress_unused_warning(name)
50 #define GAPI_ITT_STATIC_LOCAL_HANDLE_IMPL(n, h) static __itt_string_handle* n = \
51 __itt_string_handle_create(h)
52 #define GAPI_ITT_DYNAMIC_LOCAL_HANDLE_IMPL(n, h) __itt_string_handle* n = \
53 __itt_string_handle_create(h)
54 #else // OPENCV_WITH_ITT
55
56 namespace cv {
57 namespace gimpl {
resetcv::gimpl::dumb_guard58 struct dumb_guard { void reset() { } };
59 } // namespace gimpl
60 } // namespace cv
61
62 #define GAPI_ITT_NAMED_TRACE_GUARD(name, h) cv::gimpl::dumb_guard name; \
63 cv::util::suppress_unused_warning(name); \
64 cv::util::suppress_unused_warning(h)
65 #define GAPI_ITT_STATIC_LOCAL_HANDLE_IMPL(n, h) static auto n = h
66 #define GAPI_ITT_DYNAMIC_LOCAL_HANDLE_IMPL(n, h) auto n = h
67
68 #endif // OPENCV_WITH_ITT
69
70 #define GAPI_ITT_AUTO_TRACE_GUARD_IMPL_(LINE, h) GAPI_ITT_NAMED_TRACE_GUARD( \
71 itt_trace_guard_##LINE, h)
72 #define GAPI_ITT_AUTO_TRACE_GUARD_IMPL(LINE, h) GAPI_ITT_AUTO_TRACE_GUARD_IMPL_(LINE, h)
73 #define GAPI_ITT_AUTO_TRACE_GUARD(h) GAPI_ITT_AUTO_TRACE_GUARD_IMPL(__LINE__, h)
74
75 #define GAPI_ITT_STATIC_LOCAL_HANDLE(n, h) GAPI_ITT_STATIC_LOCAL_HANDLE_IMPL(n, h)
76 #define GAPI_ITT_DYNAMIC_LOCAL_HANDLE(n, h) GAPI_ITT_DYNAMIC_LOCAL_HANDLE_IMPL(n, h)
77
78 #endif // OPENCV_GAPI_ITT_HPP
79