MLECO-2492 Add CPP OD example with TFLITE-ArmnnDelegate

Signed-off-by: Dvir Markovich <dvir.markovich@arm.com>
Change-Id: If412c15ba49abe8370a570260b0a8ed8de305b7c

2 files changed, 91 insertions, 0 deletions

diff --git a/samples/common/include/Utils/Profiling.hpp b/samples/common/include/Utils/Profiling.hpp
new file mode 100644
index 0000000000..cca5632b02
--- /dev/null
+++ b/samples/common/include/Utils/Profiling.hpp
@@ -0,0 +1,90 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+#include <chrono>
+#include <iostream>
+#include <string>
+
+using namespace std::chrono;
+
+namespace common
+{
+/**
+* @brief Used for meausuring performance of specific actions in the code.
+ * Profiling should be enabled with a parameter passed to the constructor and
+ * it's disabled by default.
+ * In order to measure timing, wrap the desired code section with
+ * ProfilingStart() and ProfilingStopAndPrintUs(title)
+*/
+class Profiling {
+private:
+
+    struct group_thousands : std::numpunct<char>
+    {
+        std::string do_grouping() const override { return "\3"; }
+    };
+
+    bool mProfilingEnabled{};
+    steady_clock::time_point mStart{};
+    steady_clock::time_point mStop{};
+public:
+    Profiling() : mProfilingEnabled(false) {};
+
+    /**
+    * @brief Initializes the profiling object.
+    *
+    *       * @param[in] isEnabled - Enables the profiling computation and prints.
+    */
+    explicit Profiling(bool isEnabled) : mProfilingEnabled(isEnabled) {};
+
+/**
+* @brief Starts the profiling measurement.
+*
+*/
+
+    void ProfilingStart()
+    {
+        if (mProfilingEnabled)
+        {
+            mStart = steady_clock::now();
+        }
+    }
+
+/**
+* @brief Stops the profiling measurement, without printing the results.
+*
+*/
+    auto ProfilingStop()
+    {
+        if (mProfilingEnabled)
+        {
+            mStop = steady_clock::now();
+        }
+    }
+
+/**
+* @brief Get the measurement result in micro-seconds.
+*
+*/
+    auto ProfilingGetUs()
+    {
+        return mProfilingEnabled ? duration_cast<microseconds>(mStop - mStart).count() : 0;
+    }
+
+/**
+* @brief Stop the profiling measurement and print the result in micro-seconds.
+*
+*/
+    void ProfilingStopAndPrintUs(const std::string &title)
+    {
+        ProfilingStop();
+        if (mProfilingEnabled) {
+            std::cout.imbue(std::locale(std::cout.getloc(), new group_thousands));
+            std::cout << "Profiling: " << title << ": " << ProfilingGetUs() << " uSeconds" << std::endl;
+        }
+    }
+};
+}// namespace common
\ No newline at end of file
diff --git a/samples/common/include/Utils/Types.hpp b/samples/common/include/Utils/Types.hpp
index 4d1f708844..184e02aa09 100644
--- a/samples/common/include/Utils/Types.hpp
+++ b/samples/common/include/Utils/Types.hpp
@@ -44,6 +44,7 @@ struct PipelineOptions
     std::string m_ModelName;
     std::string m_ModelFilePath;
     std::vector<armnn::BackendId> m_backends;
+    bool m_ProfilingEnabled = false;
 };
 
 template<typename T>