[atom_cpu_profiler_gem_promotion] additional APIs for external control of the CPU profiler and visualization

Signed-off-by: AMZN-ScottR <24445312+AMZN-ScottR@users.noreply.github.com>

Gems/Profiler/Code/Include/Profiler/ProfilerBus.h

@@ -19,6 +19,9 @@ namespace Profiler
         AZ_RTTI(ProfilerRequests, "{3757c4e5-1941-457c-85ae-16305e17a4c6}");
         virtual ~ProfilerRequests() = default;
 
+        //! Enable/Disable the CpuProfiler
+        virtual void SetProfilerEnabled(bool enabled) = 0;
+
         //! Dump a single frame of Cpu profiling data
         virtual bool CaptureCpuProfilingStatistics(const AZStd::string& outputFilePath) = 0;
 

Gems/Profiler/Code/Include/Profiler/ProfilerImGuiBus.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzCore/EBus/EBus.h>
+
+namespace Profiler
+{
+    class ProfilerImGuiRequests
+    {
+    public:
+        AZ_RTTI(ProfilerImGuiRequests, "{E0443400-D108-4D3F-8FF5-4F076FCF6D13}");
+        virtual ~ProfilerImGuiRequests() = default;
+
+        // special request to render the CPU profiler window in a non-standard way
+        // e.g not through ImGuiUpdateListenerBus::OnImGuiUpdate
+        virtual void ShowCpuProfilerWindow(bool& keepDrawing) = 0;
+    };
+
+    class ProfilerImGuiBusTraits
+        : public AZ::EBusTraits
+    {
+    public:
+        // EBusTraits overrides
+        static constexpr AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
+        static constexpr AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+    };
+
+    using ProfilerImGuiRequestBus = AZ::EBus<ProfilerImGuiRequests, ProfilerImGuiBusTraits>;
+} // namespace Profiler