AsynchronousProgramming.h

//--------------------------------------------------------------------------------------
// AsynchronousProgramming.h
//
// Advanced Technology Group (ATG)
// Copyright (C) Microsoft Corporation. All rights reserved.
//--------------------------------------------------------------------------------------

#pragma once

#include "DeviceResources.h"
#include "StepTimer.h"
#include "XAsyncExamples.h"


// A basic sample implementation that creates a D3D12 device and
// provides a render loop.
class Sample final : public DX::IDeviceNotify, public ATG::UITK::D3DResourcesProvider
{
public:

    Sample() noexcept(false);
    ~Sample();

    Sample(Sample&&) = delete;
    Sample& operator= (Sample&&) = delete;

    Sample(Sample const&) = delete;
    Sample& operator= (Sample const&) = delete;

    // UIStyleManager::D3DResourcesProvider interface methods
    ID3D12Device* GetD3DDevice() override { return m_deviceResources->GetD3DDevice(); }
    ID3D12CommandQueue* GetCommandQueue() const override { return m_deviceResources->GetCommandQueue(); }
    ID3D12GraphicsCommandList* GetCommandList() const override
    {
        return m_deviceResources->GetCommandList();
    }

    HWND GetHWND() const { return m_deviceResources->GetWindow(); }
    ATG::XAsyncExamples* GetExamples() const { return m_examples.get(); }

    // Initialization and management
    void Initialize(HWND window, int width, int height);

    // Basic render loop
    void Tick();

    // IDeviceNotify
    void OnDeviceLost() override;
    void OnDeviceRestored() override;

    // Messages
    void OnActivated();
    void OnDeactivated();
    void OnSuspending();
    void OnResuming();
    void OnWindowMoved();
    void OnWindowSizeChanged(int width, int height);

    // Properties
    void GetDefaultSize(int& width, int& height) const noexcept;

    // UI
    void InitializeUI();
    void Log(const char* text);
    void SetupButtonHandler(int index, std::string displayText, std::function<void()> onClicked);
    void UpdateDescription(int index);

private:

    void Update(DX::StepTimer const& timer);
    void Render();

    void Clear();

    void CreateDeviceDependentResources();
    void CreateWindowSizeDependentResources();

    // Device resources.
    std::unique_ptr<DX::DeviceResources>        m_deviceResources;

    // Rendering loop timer.
    uint64_t                                    m_frame;
    DX::StepTimer                               m_timer;

    // DirectXTK objects.
    std::unique_ptr<DirectX::GraphicsMemory>    m_graphicsMemory;

    // UITK
    ATG::UITK::UIManager                        m_uiManager;
    ATG::UITK::UIInputState                     m_uiInputState;

    std::unique_ptr<DirectX::GamePad>           m_gamePad;
    std::unique_ptr<DirectX::Keyboard>          m_keyboard;
    std::unique_ptr<DirectX::Mouse>             m_mouse;

    // UI
    std::mutex                                  m_logMutex;
    std::vector<std::string>                    m_logQueue;
    std::shared_ptr<ATG::UITK::UIButton>        m_buttons[8];
    std::shared_ptr<ATG::UITK::UIConsoleWindow> m_consoleWindow;
    std::shared_ptr<ATG::UITK::UIStaticText>    m_description;
    int                                         m_lastFocusIndex;

    // XAsync Examples
    std::unique_ptr<ATG::XAsyncExamples>        m_examples;
};