You're breathtaking!

Source/Engine/Graphics/Async/GPUTasksContext.h

@@ -0,0 +1,86 @@
+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "../GPUContext.h"
+#include "Engine/Platform/CriticalSection.h"
+#include "Engine/Core/Collections/Array.h"
+#include "GPUSyncPoint.h"
+
+class GPUTask;
+
+/// <summary>
+/// GPU tasks context
+/// </summary>
+class GPUTasksContext
+{
+protected:
+
+    CriticalSection _locker;
+    GPUSyncPoint _currentSyncPoint;
+    Array<GPUTask*> _tasksDone;
+    int32 _totalTasksDoneCount;
+
+public:
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="GPUTasksContext"/> class.
+    /// </summary>
+    /// <param name="device">The graphics device.</param>
+    GPUTasksContext(GPUDevice* device);
+
+    /// <summary>
+    /// Finalizes an instance of the <see cref="GPUTasksContext"/> class.
+    /// </summary>
+    ~GPUTasksContext();
+
+public:
+
+    /// <summary>
+    /// The GPU commands context used for tasks execution (can be only copy/upload without graphics capabilities on some platforms).
+    /// </summary>
+    GPUContext* GPU;
+
+public:
+
+    /// <summary>
+    /// Gets graphics device handle
+    /// </summary>
+    /// <returns>Graphics device</returns>
+    FORCE_INLINE GPUDevice* GetDevice() const
+    {
+        return GPU->GetDevice();
+    }
+
+    /// <summary>
+    /// Gets current synchronization point of that context (CPU position, GPU has some latency)
+    /// </summary>
+    /// <returns>Context sync point</returns>
+    FORCE_INLINE GPUSyncPoint GetCurrentSyncPoint() const
+    {
+        return _currentSyncPoint;
+    }
+
+    /// <summary>
+    /// Gets total amount of tasks done by this context
+    /// </summary>
+    /// <returns>Done tasks count</returns>
+    FORCE_INLINE int32 GetTotalTasksDoneCount() const
+    {
+        return _totalTasksDoneCount;
+    }
+
+    /// <summary>
+    /// Perform given task
+    /// </summary>
+    /// <param name="task">Task to do</param>
+    void Run(GPUTask* task);
+
+    void OnCancelSync(GPUTask* task);
+
+public:
+
+    void OnFrameBegin();
+
+    void OnFrameEnd();
+};