SimpleTriangleUWP12.h

//--------------------------------------------------------------------------------------
// SimpleTriangleUWP12.h
//
// Advanced Technology Group (ATG)
// Copyright (C) Microsoft Corporation. All rights reserved.
//--------------------------------------------------------------------------------------

#pragma once

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


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

    Sample() noexcept(false);
    ~Sample() = default;

    Sample(Sample&&) = default;
    Sample& operator= (Sample&&) = default;

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

    // Initialization and management
    void Initialize(IUnknown* window, int width, int height, DXGI_MODE_ROTATION rotation);

    // Basic render loop
    void Tick();

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

    // Messages
    void OnActivated();
    void OnDeactivated();
    void OnSuspending();
    void OnResuming();
    void OnWindowSizeChanged(int width, int height, DXGI_MODE_ROTATION rotation);
    void ValidateDevice();

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

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.
    DX::StepTimer                               m_timer;

    // Input devices.
    std::unique_ptr<DirectX::GamePad>           m_gamePad;
    std::unique_ptr<DirectX::Keyboard>          m_keyboard;

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

    // Direct3D 12 objects
    Microsoft::WRL::ComPtr<ID3D12RootSignature> m_rootSignature;
    Microsoft::WRL::ComPtr<ID3D12PipelineState> m_pipelineState;
    Microsoft::WRL::ComPtr<ID3D12Resource>      m_vertexBuffer;
    D3D12_VERTEX_BUFFER_VIEW                    m_vertexBufferView;
};