Moved Native App from master repository

8 files changed, 1120 insertions, 0 deletions

diff --git a/NativeApp/src/UWP/App.cpp b/NativeApp/src/UWP/App.cpp
new file mode 100644
index 0000000..0c928eb
--- /dev/null
+++ b/NativeApp/src/UWP/App.cpp
@@ -0,0 +1,351 @@
+/*     Copyright 2015-2016 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#define NOMINIMAX
+#include <wrl.h>
+#include <wrl/client.h>
+#include <DirectXMath.h>
+#include <agile.h>
+
+#if defined(_DEBUG)
+#   include <dxgidebug.h>
+#endif
+
+#include "App.h"
+#include "StringTools.h"
+
+#include <ppltasks.h>
+
+using namespace SampleApp;
+using namespace Diligent;
+
+using namespace concurrency;
+using namespace Windows::ApplicationModel;
+using namespace Windows::ApplicationModel::Core;
+using namespace Windows::ApplicationModel::Activation;
+using namespace Windows::UI::Core;
+using namespace Windows::UI::Input;
+using namespace Windows::System;
+using namespace Windows::Foundation;
+using namespace Windows::Graphics::Display;
+
+using Microsoft::WRL::ComPtr;
+
+
+ref class ApplicationSource sealed : IFrameworkViewSource
+{
+public:
+    virtual IFrameworkView^ CreateView()
+    {
+        return ref new App();
+    }
+};
+
+
+// The main function is only used to initialize our IFrameworkView class.
+[Platform::MTAThread]
+int main(Platform::Array<Platform::String^>^)
+{
+    auto direct3DApplicationSource = ref new ApplicationSource();
+    CoreApplication::Run(direct3DApplicationSource);
+    return 0;
+}
+
+App::App() :
+    m_windowClosed(false),
+    m_windowVisible(true)
+{
+}
+
+
+// The first method called when the IFrameworkView is being created.
+void App::Initialize(CoreApplicationView^ applicationView)
+{
+    // Register event handlers for app lifecycle. This example includes Activated, so that we
+    // can make the CoreWindow active and start rendering on the window.
+    applicationView->Activated +=
+        ref new TypedEventHandler<CoreApplicationView^, IActivatedEventArgs^>(this, &App::OnActivated);
+    
+    CoreApplication::Suspending +=
+        ref new EventHandler<SuspendingEventArgs^>(this, &App::OnSuspending);
+
+    CoreApplication::Resuming +=
+        ref new EventHandler<Platform::Object^>(this, &App::OnResuming);
+}
+
+// Called when the CoreWindow object is created (or re-created).
+void App::SetWindow(CoreWindow^ window)
+{
+    window->SizeChanged += 
+        ref new TypedEventHandler<CoreWindow^, WindowSizeChangedEventArgs^>(this, &App::OnWindowSizeChanged);
+
+    window->VisibilityChanged +=
+        ref new TypedEventHandler<CoreWindow^, VisibilityChangedEventArgs^>(this, &App::OnVisibilityChanged);
+
+    window->Closed += 
+        ref new TypedEventHandler<CoreWindow^, CoreWindowEventArgs^>(this, &App::OnWindowClosed);
+
+    window->KeyDown += 
+        ref new TypedEventHandler<CoreWindow^, KeyEventArgs^>(this, &App::OnKeyDown);
+
+    window->KeyUp +=
+        ref new TypedEventHandler<CoreWindow^, KeyEventArgs^>(this, &App::OnKeyUp);
+
+    DisplayInformation^ currentDisplayInformation = DisplayInformation::GetForCurrentView();
+
+    currentDisplayInformation->DpiChanged +=
+        ref new TypedEventHandler<DisplayInformation^, Object^>(this, &App::OnDpiChanged);
+
+    currentDisplayInformation->OrientationChanged +=
+        ref new TypedEventHandler<DisplayInformation^, Object^>(this, &App::OnOrientationChanged);
+
+    DisplayInformation::DisplayContentsInvalidated +=
+        ref new TypedEventHandler<DisplayInformation^, Object^>(this, &App::OnDisplayContentsInvalidated);
+
+    if (m_Main)
+    {
+        m_Main->OnSetWindow(window);
+    }
+}
+
+// Initializes scene resources, or loads a previously saved app state.
+void App::Load(Platform::String^ entryPoint)
+{
+    if (m_Main == nullptr)
+    {
+        m_Main.reset(CreateApplication());
+        m_Main->OnSetWindow(CoreWindow::GetForCurrentThread());
+    }
+}
+
+// This method is called after the window becomes active.
+void App::Run()
+{
+    while (!m_windowClosed)
+    {
+        if (m_windowVisible)
+        {
+            CoreWindow::GetForCurrentThread()->Dispatcher->ProcessEvents(CoreProcessEventsOption::ProcessAllIfPresent);
+
+            // Initialize device resources
+            GetDeviceResources();
+
+            //PIXBeginEvent(commandQueue, 0, L"Update");
+            {
+                m_Main->Update();
+            }
+            //PIXEndEvent(commandQueue);
+
+            //PIXBeginEvent(commandQueue, 0, L"Render");
+            {
+                m_Main->Render();
+                if (m_Main->IsFrameReady())
+                {
+                    m_Main->Present();
+                }
+            }
+            //PIXEndEvent(commandQueue);
+        }
+        else
+        {
+            CoreWindow::GetForCurrentThread()->Dispatcher->ProcessEvents(CoreProcessEventsOption::ProcessOneAndAllPending);
+        }
+    }
+}
+
+// Required for IFrameworkView.
+// Terminate events do not cause Uninitialize to be called. It will be called if your IFrameworkView
+// class is torn down while the app is in the foreground.
+void App::Uninitialize()
+{
+}
+
+// Application lifecycle event handlers.
+
+void App::OnActivated(CoreApplicationView^ applicationView, IActivatedEventArgs^ args)
+{
+    if (args->Kind == ActivationKind::Launch)
+    {
+        LaunchActivatedEventArgs^ launchArgs = (LaunchActivatedEventArgs^)args;
+        auto CmdLine = Diligent::NarrowString(launchArgs->Arguments->Data());
+        m_Main->ProcessCommandLine(CmdLine.c_str());
+    }
+
+    auto Title = Diligent::WidenString(m_Main->GetAppTitle());
+    Windows::UI::ViewManagement::ApplicationView::GetForCurrentView()->Title = ref new Platform::String(Title.c_str());
+
+    // Run() won't start until the CoreWindow is activated.
+    CoreWindow::GetForCurrentThread()->Activate();
+}
+
+void App::OnSuspending(Platform::Object^ sender, SuspendingEventArgs^ args)
+{
+    // Save app state asynchronously after requesting a deferral. Holding a deferral
+    // indicates that the application is busy performing suspending operations. Be
+    // aware that a deferral may not be held indefinitely. After about five seconds,
+    // the app will be forced to exit.
+    SuspendingDeferral^ deferral = args->SuspendingOperation->GetDeferral();
+
+    create_task([this, deferral]()
+    {
+        m_Main->OnSuspending();
+        deferral->Complete();
+    });
+}
+
+void App::OnResuming(Platform::Object^ sender, Platform::Object^ args)
+{
+    // Restore any data or state that was unloaded on suspend. By default, data
+    // and state are persisted when resuming from suspend. Note that this event
+    // does not occur if the app was previously terminated.
+
+    m_Main->OnResuming();
+}
+
+// Window event handlers.
+
+void App::OnWindowSizeChanged(CoreWindow^ sender, WindowSizeChangedEventArgs^ args)
+{
+    if (auto DeviceResources = GetDeviceResources())
+    {
+        DeviceResources->SetLogicalSize(Size(sender->Bounds.Width, sender->Bounds.Height));
+        m_Main->OnWindowSizeChanged();
+    }
+}
+
+void App::OnVisibilityChanged(CoreWindow^ sender, VisibilityChangedEventArgs^ args)
+{
+    m_windowVisible = args->Visible;
+}
+
+void App::OnWindowClosed(CoreWindow^ sender, CoreWindowEventArgs^ args)
+{
+    m_windowClosed = true;
+}
+
+// DisplayInformation event handlers.
+
+void App::OnDpiChanged(DisplayInformation^ sender, Object^ args)
+{
+    // Note: The value for LogicalDpi retrieved here may not match the effective DPI of the app
+    // if it is being scaled for high resolution devices. Once the DPI is set on DeviceResources,
+    // you should always retrieve it using the GetDpi method.
+    // See DeviceResources.cpp for more details.
+    if (auto DeviceResources = GetDeviceResources())
+    {
+        DeviceResources->SetDpi(sender->LogicalDpi);
+        m_Main->OnWindowSizeChanged();
+    }
+}
+
+void App::OnOrientationChanged(DisplayInformation^ sender, Object^ args)
+{
+    if (auto DeviceResources = GetDeviceResources())
+    {
+        DeviceResources->SetCurrentOrientation(sender->CurrentOrientation);
+        m_Main->OnWindowSizeChanged();
+    }
+}
+
+void App::OnDisplayContentsInvalidated(DisplayInformation^ sender, Object^ args)
+{
+    if (auto DeviceResources = GetDeviceResources())
+    {
+        DeviceResources->ValidateDevice();
+    }
+}
+
+void App::OnKeyDown(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::KeyEventArgs^ args)
+{
+    auto Key = args->VirtualKey;
+    switch(Key)
+    {
+        case VirtualKey::Escape:
+            CoreApplication::Exit();
+        break;
+
+        case VirtualKey::Enter:
+            if(m_bShiftPressed)
+            {
+                auto applicationView = Windows::UI::ViewManagement::ApplicationView::GetForCurrentView();
+                if (applicationView->IsFullScreenMode)
+                {
+                    applicationView->ExitFullScreenMode();
+                }
+                else
+                {
+                    applicationView->TryEnterFullScreenMode();
+                }
+            }
+        break;
+
+        case VirtualKey::Shift:
+            m_bShiftPressed = true;
+            break;
+    }
+}
+
+void App::OnKeyUp(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::KeyEventArgs^ args)
+{
+    auto Key = args->VirtualKey;
+    switch (Key)
+    {
+        case VirtualKey::Shift:
+            m_bShiftPressed = false;
+            break;
+    }
+}
+
+std::shared_ptr<DX::DeviceResources> App::GetDeviceResources()
+{
+    if (m_deviceResources != nullptr && m_deviceResources->IsDeviceRemoved())
+    {
+        // All references to the existing D3D device must be released before a new device
+        // can be created.
+
+        m_deviceResources = nullptr;
+        m_Main->OnDeviceRemoved();
+
+#if defined(_DEBUG)
+        ComPtr<IDXGIDebug1> dxgiDebug;
+        if (SUCCEEDED(DXGIGetDebugInterface1(0, IID_PPV_ARGS(&dxgiDebug))))
+        {
+            dxgiDebug->ReportLiveObjects(DXGI_DEBUG_ALL, DXGI_DEBUG_RLO_FLAGS(DXGI_DEBUG_RLO_SUMMARY | DXGI_DEBUG_RLO_IGNORE_INTERNAL));
+        }
+#endif
+    }
+
+    if (m_deviceResources == nullptr)
+    {
+        m_deviceResources = m_Main->InitDeviceResources();
+        if (m_deviceResources)
+        {
+            m_deviceResources->SetWindow(CoreWindow::GetForCurrentThread());
+            auto Title = Diligent::WidenString(m_Main->GetAppTitle());
+            Windows::UI::ViewManagement::ApplicationView::GetForCurrentView()->Title = ref new Platform::String(Title.c_str());
+            m_Main->OnWindowSizeChanged();
+            m_Main->CreateRenderers();
+        }
+    }
+    return m_deviceResources;
+}
diff --git a/NativeApp/src/UWP/App.h b/NativeApp/src/UWP/App.h
new file mode 100644
index 0000000..4f31f07
--- /dev/null
+++ b/NativeApp/src/UWP/App.h
@@ -0,0 +1,71 @@
+/*     Copyright 2015-2016 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+#include "Common\DeviceResources.h"
+#include "NativeAppBase.h"
+
+namespace SampleApp
+{
+    // Main entry point for our app. Connects the app with the Windows shell and handles application lifecycle events.
+    ref class App sealed : public Windows::ApplicationModel::Core::IFrameworkView
+    {
+    public:
+        App();
+
+        // IFrameworkView methods.
+        virtual void Initialize(Windows::ApplicationModel::Core::CoreApplicationView^ applicationView);
+        virtual void SetWindow(Windows::UI::Core::CoreWindow^ window);
+        virtual void Load(Platform::String^ entryPoint);
+        virtual void Run();
+        virtual void Uninitialize();
+
+    protected:
+        // Application lifecycle event handlers.
+        void OnActivated(Windows::ApplicationModel::Core::CoreApplicationView^ applicationView, Windows::ApplicationModel::Activation::IActivatedEventArgs^ args);
+        void OnSuspending(Platform::Object^ sender, Windows::ApplicationModel::SuspendingEventArgs^ args);
+        void OnResuming(Platform::Object^ sender, Platform::Object^ args);
+
+        // Window event handlers.
+        void OnWindowSizeChanged(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::WindowSizeChangedEventArgs^ args);
+        void OnVisibilityChanged(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::VisibilityChangedEventArgs^ args);
+        void OnWindowClosed(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::CoreWindowEventArgs^ args);
+
+        // DisplayInformation event handlers.
+        void OnDpiChanged(Windows::Graphics::Display::DisplayInformation^ sender, Platform::Object^ args);
+        void OnOrientationChanged(Windows::Graphics::Display::DisplayInformation^ sender, Platform::Object^ args);
+        void OnDisplayContentsInvalidated(Windows::Graphics::Display::DisplayInformation^ sender, Platform::Object^ args);
+
+        void OnKeyDown(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::KeyEventArgs^ args);
+        void OnKeyUp(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::KeyEventArgs^ args);
+
+    private:
+        std::shared_ptr<DX::DeviceResources> GetDeviceResources();
+        std::unique_ptr<Diligent::NativeAppBase> m_Main;
+        std::shared_ptr<DX::DeviceResources> m_deviceResources;
+        bool m_windowClosed = false;
+        bool m_windowVisible = false;
+        bool m_bShiftPressed = false;
+    };
+}
diff --git a/NativeApp/src/UWP/Common/DeviceResources.cpp b/NativeApp/src/UWP/Common/DeviceResources.cpp
new file mode 100644
index 0000000..c111a54
--- /dev/null
+++ b/NativeApp/src/UWP/Common/DeviceResources.cpp
@@ -0,0 +1,328 @@
+
+#define NOMINIMAX
+#include <wrl.h>
+#include <wrl/client.h>
+#include <DirectXMath.h>
+#include <agile.h>
+
+#include <dxgi1_4.h>
+#include <d3d12.h>
+#include <d3d11.h>
+#include <pix.h>
+
+#if defined(_DEBUG)
+#   include <dxgidebug.h>
+#endif
+
+#include "DeviceResources.h"
+#include "DirectXHelper.h"
+
+
+using namespace DirectX;
+using namespace Microsoft::WRL;
+using namespace Windows::Foundation;
+using namespace Windows::Graphics::Display;
+using namespace Windows::UI::Core;
+using namespace Windows::UI::Xaml::Controls;
+using namespace Platform;
+
+namespace DisplayMetrics
+{
+    // High resolution displays can require a lot of GPU and battery power to render.
+    // High resolution phones, for example, may suffer from poor battery life if
+    // games attempt to render at 60 frames per second at full fidelity.
+    // The decision to render at full fidelity across all platforms and form factors
+    // should be deliberate.
+    static const bool SupportHighResolutions = false;
+
+    // The default thresholds that define a "high resolution" display. If the thresholds
+    // are exceeded and SupportHighResolutions is false, the dimensions will be scaled
+    // by 50%.
+    static const float DpiThreshold = 192.0f;		// 200% of standard desktop display.
+    static const float WidthThreshold = 1920.0f;	// 1080p width.
+    static const float HeightThreshold = 1080.0f;	// 1080p height.
+};
+
+// Constants used to calculate screen rotations.
+namespace ScreenRotation
+{
+    // 0-degree Z-rotation
+    static const XMFLOAT4X4 Rotation0(
+        1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 1.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+
+    // 90-degree Z-rotation
+    static const XMFLOAT4X4 Rotation90(
+        0.0f, 1.0f, 0.0f, 0.0f,
+        -1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+
+    // 180-degree Z-rotation
+    static const XMFLOAT4X4 Rotation180(
+        -1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, -1.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+
+    // 270-degree Z-rotation
+    static const XMFLOAT4X4 Rotation270(
+        0.0f, -1.0f, 0.0f, 0.0f,
+        1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+};
+
+// Constructor for DeviceResources.
+DX::DeviceResources::DeviceResources(ID3D11Device *d3d11Device, ID3D12Device *d3d12Device) :
+    m_d3dRenderTargetSize(),
+    m_outputSize(),
+    m_logicalSize(),
+    m_nativeOrientation(DisplayOrientations::None),
+    m_currentOrientation(DisplayOrientations::None),
+    m_dpi(-1.0f),
+    m_deviceRemoved(false),
+    m_d3d11Device(d3d11Device),
+    m_d3d12Device(d3d12Device)
+{
+}
+
+
+void DX::DeviceResources::SetSwapChainRotation(IDXGISwapChain3 *swapChain)
+{
+    // Set the proper orientation for the swap chain, and generate
+    // 3D matrix transformations for rendering to the rotated swap chain.
+    // The 3D matrix is specified explicitly to avoid rounding errors.
+    DXGI_MODE_ROTATION displayRotation = ComputeDisplayRotation();
+    switch (displayRotation)
+    {
+    case DXGI_MODE_ROTATION_IDENTITY:
+        m_orientationTransform3D = ScreenRotation::Rotation0;
+        break;
+
+    case DXGI_MODE_ROTATION_ROTATE90:
+        m_orientationTransform3D = ScreenRotation::Rotation270;
+        break;
+
+    case DXGI_MODE_ROTATION_ROTATE180:
+        m_orientationTransform3D = ScreenRotation::Rotation180;
+        break;
+
+    case DXGI_MODE_ROTATION_ROTATE270:
+        m_orientationTransform3D = ScreenRotation::Rotation90;
+        break;
+
+    default:
+        throw ref new FailureException();
+    }
+
+    DX::ThrowIfFailed(
+        swapChain->SetRotation(displayRotation)
+    );
+}
+
+// Determine the dimensions of the render target and whether it will be scaled down.
+void DX::DeviceResources::UpdateRenderTargetSize()
+{
+    m_effectiveDpi = m_dpi;
+
+    // To improve battery life on high resolution devices, render to a smaller render target
+    // and allow the GPU to scale the output when it is presented.
+    if (!DisplayMetrics::SupportHighResolutions && m_dpi > DisplayMetrics::DpiThreshold)
+    {
+        float width = DX::ConvertDipsToPixels(m_logicalSize.Width, m_dpi);
+        float height = DX::ConvertDipsToPixels(m_logicalSize.Height, m_dpi);
+
+        // When the device is in portrait orientation, height > width. Compare the
+        // larger dimension against the width threshold and the smaller dimension
+        // against the height threshold.
+        if (max(width, height) > DisplayMetrics::WidthThreshold && min(width, height) > DisplayMetrics::HeightThreshold)
+        {
+            // To scale the app we change the effective DPI. Logical size does not change.
+            m_effectiveDpi /= 2.0f;
+        }
+    }
+
+    // Calculate the necessary render target size in pixels.
+    m_outputSize.Width = DX::ConvertDipsToPixels(m_logicalSize.Width, m_effectiveDpi);
+    m_outputSize.Height = DX::ConvertDipsToPixels(m_logicalSize.Height, m_effectiveDpi);
+
+    // Prevent zero size DirectX content from being created.
+    m_outputSize.Width = max(m_outputSize.Width, 1);
+    m_outputSize.Height = max(m_outputSize.Height, 1);
+
+
+    // The width and height of the swap chain must be based on the window's
+    // natively-oriented width and height. If the window is not in the native
+    // orientation, the dimensions must be reversed.
+    DXGI_MODE_ROTATION displayRotation = ComputeDisplayRotation();
+
+    bool swapDimensions = displayRotation == DXGI_MODE_ROTATION_ROTATE90 || displayRotation == DXGI_MODE_ROTATION_ROTATE270;
+    auto fWidth = swapDimensions ? m_outputSize.Height : m_outputSize.Width;
+    auto fHeight = swapDimensions ? m_outputSize.Width : m_outputSize.Height;
+
+    m_backBufferWidth = lround(fWidth);
+    m_backBufferHeight = lround(fHeight);
+}
+
+// This method is called when the CoreWindow is created (or re-created).
+void DX::DeviceResources::SetWindow(CoreWindow^ window)
+{
+    DisplayInformation^ currentDisplayInformation = DisplayInformation::GetForCurrentView();
+
+    m_window = window;
+    m_logicalSize = Windows::Foundation::Size(window->Bounds.Width, window->Bounds.Height);
+    m_nativeOrientation = currentDisplayInformation->NativeOrientation;
+    m_currentOrientation = currentDisplayInformation->CurrentOrientation;
+    m_dpi = currentDisplayInformation->LogicalDpi;
+
+    //CreateWindowSizeDependentResources();
+}
+
+// This method is called in the event handler for the SizeChanged event.
+void DX::DeviceResources::SetLogicalSize(Windows::Foundation::Size logicalSize)
+{
+    if (m_logicalSize != logicalSize)
+    {
+        m_logicalSize = logicalSize;
+        //CreateWindowSizeDependentResources();
+    }
+}
+
+// This method is called in the event handler for the DpiChanged event.
+void DX::DeviceResources::SetDpi(float dpi)
+{
+    if (dpi != m_dpi)
+    {
+        m_dpi = dpi;
+
+        // When the display DPI changes, the logical size of the window (measured in Dips) also changes and needs to be updated.
+        m_logicalSize = Windows::Foundation::Size(m_window->Bounds.Width, m_window->Bounds.Height);
+
+        //CreateWindowSizeDependentResources();
+    }
+}
+
+// This method is called in the event handler for the OrientationChanged event.
+void DX::DeviceResources::SetCurrentOrientation(DisplayOrientations currentOrientation)
+{
+    if (m_currentOrientation != currentOrientation)
+    {
+        m_currentOrientation = currentOrientation;
+        //CreateWindowSizeDependentResources();
+    }
+}
+
+// This method is called in the event handler for the DisplayContentsInvalidated event.
+void DX::DeviceResources::ValidateDevice()
+{
+    // The D3D Device is no longer valid if the default adapter changed since the device
+    // was created or if the device has been removed.
+
+    ComPtr<IDXGIDevice3> dxgiDevice;
+    if(m_d3d11Device)
+        DX::ThrowIfFailed(m_d3d11Device.As(&dxgiDevice));
+    else if(m_d3d12Device)
+        DX::ThrowIfFailed(m_d3d12Device.As(&dxgiDevice));
+
+    ComPtr<IDXGIAdapter> deviceAdapter;
+    DX::ThrowIfFailed(dxgiDevice->GetAdapter(&deviceAdapter));
+
+    ComPtr<IDXGIFactory2> deviceFactory;
+    DX::ThrowIfFailed(deviceAdapter->GetParent(IID_PPV_ARGS(&deviceFactory)));
+
+    // First, get the LUID for the default adapter from when the device was created.
+
+    DXGI_ADAPTER_DESC previousDesc;
+    {
+        ComPtr<IDXGIAdapter1> previousDefaultAdapter;
+        DX::ThrowIfFailed(deviceFactory->EnumAdapters1(0, &previousDefaultAdapter));
+
+        DX::ThrowIfFailed(previousDefaultAdapter->GetDesc(&previousDesc));
+    }
+
+    // Next, get the information for the current default adapter.
+
+    DXGI_ADAPTER_DESC currentDesc;
+    {
+        ComPtr<IDXGIFactory4> currentDxgiFactory;
+        DX::ThrowIfFailed(CreateDXGIFactory1(IID_PPV_ARGS(&currentDxgiFactory)));
+
+        ComPtr<IDXGIAdapter1> currentDefaultAdapter;
+        DX::ThrowIfFailed(currentDxgiFactory->EnumAdapters1(0, &currentDefaultAdapter));
+
+        DX::ThrowIfFailed(currentDefaultAdapter->GetDesc(&currentDesc));
+    }
+
+    // If the adapter LUIDs don't match, or if the device reports that it has been removed,
+    // a new D3D device must be created.
+
+    if (previousDesc.AdapterLuid.LowPart != currentDesc.AdapterLuid.LowPart ||
+        previousDesc.AdapterLuid.HighPart != currentDesc.AdapterLuid.HighPart ||
+        m_d3d11Device && FAILED(m_d3d11Device->GetDeviceRemovedReason()) || 
+        m_d3d12Device && FAILED(m_d3d12Device->GetDeviceRemovedReason()))
+    {
+        m_deviceRemoved = true;
+    }
+}
+
+// This method determines the rotation between the display device's native Orientation and the
+// current display orientation.
+DXGI_MODE_ROTATION DX::DeviceResources::ComputeDisplayRotation()
+{
+    DXGI_MODE_ROTATION rotation = DXGI_MODE_ROTATION_UNSPECIFIED;
+
+    // Note: NativeOrientation can only be Landscape or Portrait even though
+    // the DisplayOrientations enum has other values.
+    switch (m_nativeOrientation)
+    {
+    case DisplayOrientations::Landscape:
+        switch (m_currentOrientation)
+        {
+        case DisplayOrientations::Landscape:
+            rotation = DXGI_MODE_ROTATION_IDENTITY;
+            break;
+
+        case DisplayOrientations::Portrait:
+            rotation = DXGI_MODE_ROTATION_ROTATE270;
+            break;
+
+        case DisplayOrientations::LandscapeFlipped:
+            rotation = DXGI_MODE_ROTATION_ROTATE180;
+            break;
+
+        case DisplayOrientations::PortraitFlipped:
+            rotation = DXGI_MODE_ROTATION_ROTATE90;
+            break;
+        }
+        break;
+
+    case DisplayOrientations::Portrait:
+        switch (m_currentOrientation)
+        {
+        case DisplayOrientations::Landscape:
+            rotation = DXGI_MODE_ROTATION_ROTATE90;
+            break;
+
+        case DisplayOrientations::Portrait:
+            rotation = DXGI_MODE_ROTATION_IDENTITY;
+            break;
+
+        case DisplayOrientations::LandscapeFlipped:
+            rotation = DXGI_MODE_ROTATION_ROTATE270;
+            break;
+
+        case DisplayOrientations::PortraitFlipped:
+            rotation = DXGI_MODE_ROTATION_ROTATE180;
+            break;
+        }
+        break;
+    }
+    return rotation;
+}
diff --git a/NativeApp/src/UWP/Common/DeviceResources.h b/NativeApp/src/UWP/Common/DeviceResources.h
new file mode 100644
index 0000000..69fa00c
--- /dev/null
+++ b/NativeApp/src/UWP/Common/DeviceResources.h
@@ -0,0 +1,72 @@
+#pragma once
+
+#include <dxgi1_4.h>
+#include <d3d12.h>
+#include <d3d11.h>
+#include <DirectXMath.h>
+#include <agile.h>
+
+namespace DX
+{
+    // Controls all the DirectX device resources.
+    class DeviceResources
+    {
+    public:
+        DeviceResources(ID3D11Device *d3d11Device, ID3D12Device *d3d12Device);
+
+        void SetWindow(Windows::UI::Core::CoreWindow^ window);
+        void SetLogicalSize(Windows::Foundation::Size logicalSize);
+        void SetCurrentOrientation(Windows::Graphics::Display::DisplayOrientations currentOrientation);
+        void SetDpi(float dpi);
+        void ValidateDevice();
+        void SetSwapChainRotation(IDXGISwapChain3 *swapChain);
+
+        // The size of the render target, in pixels.
+        Windows::Foundation::Size	GetOutputSize() const				{ return m_outputSize; }
+
+        // The size of the render target, in dips.
+        Windows::Foundation::Size	GetLogicalSize() const				{ return m_logicalSize; }
+
+        float						GetDpi() const						{ return m_effectiveDpi; }
+        bool						IsDeviceRemoved() const				{ return m_deviceRemoved; }
+
+        // D3D Accessors.
+        DirectX::XMFLOAT4X4			GetOrientationTransform3D() const	{ return m_orientationTransform3D; }
+
+        void UpdateRenderTargetSize();
+        UINT GetBackBufferWidth()  {return m_backBufferWidth;}
+        UINT GetBackBufferHeight() {return m_backBufferHeight;}
+
+        Windows::UI::Core::CoreWindow^ GetWindow(){return m_window.Get();}
+
+    private:
+        
+        
+        DXGI_MODE_ROTATION ComputeDisplayRotation();
+
+        bool											m_deviceRemoved;
+
+        // Direct3D objects.
+        Microsoft::WRL::ComPtr<ID3D12Device>			m_d3d12Device;
+        Microsoft::WRL::ComPtr<ID3D11Device>			m_d3d11Device;
+        
+        // Cached reference to the Window.
+        Platform::Agile<Windows::UI::Core::CoreWindow>	m_window;
+
+        // Cached device properties.
+        Windows::Foundation::Size						m_d3dRenderTargetSize;
+        Windows::Foundation::Size						m_outputSize;
+        Windows::Foundation::Size						m_logicalSize;
+        Windows::Graphics::Display::DisplayOrientations	m_nativeOrientation;
+        Windows::Graphics::Display::DisplayOrientations	m_currentOrientation;
+        float											m_dpi;
+        UINT                                            m_backBufferWidth  = 0;
+        UINT                                            m_backBufferHeight = 0;
+
+        // This is the DPI that will be reported back to the app. It takes into account whether the app supports high resolution screens or not.
+        float											m_effectiveDpi;
+
+        // Transforms used for display orientation.
+        DirectX::XMFLOAT4X4								m_orientationTransform3D;
+    };
+}
diff --git a/NativeApp/src/UWP/Common/DirectXHelper.h b/NativeApp/src/UWP/Common/DirectXHelper.h
new file mode 100644
index 0000000..7bfe36f
--- /dev/null
+++ b/NativeApp/src/UWP/Common/DirectXHelper.h
@@ -0,0 +1,58 @@
+#pragma once
+
+#include <ppltasks.h>	// For create_task
+
+namespace DX
+{
+    inline void ThrowIfFailed(HRESULT hr)
+    {
+        if (FAILED(hr))
+        {
+            // Set a breakpoint on this line to catch Win32 API errors.
+            throw Platform::Exception::CreateException(hr);
+        }
+    }
+
+    // Function that reads from a binary file asynchronously.
+    inline Concurrency::task<std::vector<byte>> ReadDataAsync(const std::wstring& filename)
+    {
+        using namespace Windows::Storage;
+        using namespace Concurrency;
+
+        auto folder = Windows::ApplicationModel::Package::Current->InstalledLocation;
+
+        return create_task(folder->GetFileAsync(Platform::StringReference(filename.c_str()))).then([](StorageFile^ file)
+        {
+            return FileIO::ReadBufferAsync(file);
+        }).then([](Streams::IBuffer^ fileBuffer) -> std::vector<byte>
+        {
+            std::vector<byte> returnBuffer;
+            returnBuffer.resize(fileBuffer->Length);
+            Streams::DataReader::FromBuffer(fileBuffer)->ReadBytes(Platform::ArrayReference<byte>(returnBuffer.data(), fileBuffer->Length));
+            return returnBuffer;
+        });
+    }
+
+    // Converts a length in device-independent pixels (DIPs) to a length in physical pixels.
+    inline float ConvertDipsToPixels(float dips, float dpi)
+    {
+        static const float dipsPerInch = 96.0f;
+        return floorf(dips * dpi / dipsPerInch + 0.5f); // Round to nearest integer.
+    }
+
+    // Assign a name to the object to aid with debugging.
+#if defined(_DEBUG)
+    inline void SetName(ID3D12Object* pObject, LPCWSTR name)
+    {
+        pObject->SetName(name);
+    }
+#else
+    inline void SetName(ID3D12Object*, LPCWSTR)
+    {
+    }
+#endif
+}
+
+// Naming helper function for ComPtr<T>.
+// Assigns the name of the variable as the name of the object.
+#define NAME_D3D12_OBJECT(x) DX::SetName(x.Get(), L#x)
diff --git a/NativeApp/src/UWP/Common/StepTimer.h b/NativeApp/src/UWP/Common/StepTimer.h
new file mode 100644
index 0000000..c8addbc
--- /dev/null
+++ b/NativeApp/src/UWP/Common/StepTimer.h
@@ -0,0 +1,183 @@
+#pragma once
+
+#include <wrl.h>
+
+namespace DX
+{
+    // Helper class for animation and simulation timing.
+    class StepTimer
+    {
+    public:
+        StepTimer() : 
+            m_elapsedTicks(0),
+            m_totalTicks(0),
+            m_leftOverTicks(0),
+            m_frameCount(0),
+            m_framesPerSecond(0),
+            m_framesThisSecond(0),
+            m_qpcSecondCounter(0),
+            m_isFixedTimeStep(false),
+            m_targetElapsedTicks(TicksPerSecond / 60)
+        {
+            if (!QueryPerformanceFrequency(&m_qpcFrequency))
+            {
+                throw ref new Platform::FailureException();
+            }
+
+            if (!QueryPerformanceCounter(&m_qpcLastTime))
+            {
+                throw ref new Platform::FailureException();
+            }
+
+            // Initialize max delta to 1/10 of a second.
+            m_qpcMaxDelta = m_qpcFrequency.QuadPart / 10;
+        }
+
+        // Get elapsed time since the previous Update call.
+        uint64 GetElapsedTicks() const						{ return m_elapsedTicks; }
+        double GetElapsedSeconds() const					{ return TicksToSeconds(m_elapsedTicks); }
+
+        // Get total time since the start of the program.
+        uint64 GetTotalTicks() const						{ return m_totalTicks; }
+        double GetTotalSeconds() const						{ return TicksToSeconds(m_totalTicks); }
+
+        // Get total number of updates since start of the program.
+        uint32 GetFrameCount() const						{ return m_frameCount; }
+
+        // Get the current framerate.
+        uint32 GetFramesPerSecond() const					{ return m_framesPerSecond; }
+
+        // Set whether to use fixed or variable timestep mode.
+        void SetFixedTimeStep(bool isFixedTimestep)			{ m_isFixedTimeStep = isFixedTimestep; }
+
+        // Set how often to call Update when in fixed timestep mode.
+        void SetTargetElapsedTicks(uint64 targetElapsed)	{ m_targetElapsedTicks = targetElapsed; }
+        void SetTargetElapsedSeconds(double targetElapsed)	{ m_targetElapsedTicks = SecondsToTicks(targetElapsed); }
+
+        // Integer format represents time using 10,000,000 ticks per second.
+        static const uint64 TicksPerSecond = 10000000;
+
+        static double TicksToSeconds(uint64 ticks)			{ return static_cast<double>(ticks) / TicksPerSecond; }
+        static uint64 SecondsToTicks(double seconds)		{ return static_cast<uint64>(seconds * TicksPerSecond); }
+
+        // After an intentional timing discontinuity (for instance a blocking IO operation)
+        // call this to avoid having the fixed timestep logic attempt a set of catch-up 
+        // Update calls.
+
+        void ResetElapsedTime()
+        {
+            if (!QueryPerformanceCounter(&m_qpcLastTime))
+            {
+                throw ref new Platform::FailureException();
+            }
+
+            m_leftOverTicks = 0;
+            m_framesPerSecond = 0;
+            m_framesThisSecond = 0;
+            m_qpcSecondCounter = 0;
+        }
+
+        // Update timer state, calling the specified Update function the appropriate number of times.
+        template<typename TUpdate>
+        void Tick(const TUpdate& update)
+        {
+            // Query the current time.
+            LARGE_INTEGER currentTime;
+
+            if (!QueryPerformanceCounter(&currentTime))
+            {
+                throw ref new Platform::FailureException();
+            }
+
+            uint64 timeDelta = currentTime.QuadPart - m_qpcLastTime.QuadPart;
+
+            m_qpcLastTime = currentTime;
+            m_qpcSecondCounter += timeDelta;
+
+            // Clamp excessively large time deltas (e.g. after paused in the debugger).
+            if (timeDelta > m_qpcMaxDelta)
+            {
+                timeDelta = m_qpcMaxDelta;
+            }
+
+            // Convert QPC units into a canonical tick format. This cannot overflow due to the previous clamp.
+            timeDelta *= TicksPerSecond;
+            timeDelta /= m_qpcFrequency.QuadPart;
+
+            uint32 lastFrameCount = m_frameCount;
+
+            if (m_isFixedTimeStep)
+            {
+                // Fixed timestep update logic
+
+                // If the app is running very close to the target elapsed time (within 1/4 of a millisecond) just clamp
+                // the clock to exactly match the target value. This prevents tiny and irrelevant errors
+                // from accumulating over time. Without this clamping, a game that requested a 60 fps
+                // fixed update, running with vsync enabled on a 59.94 NTSC display, would eventually
+                // accumulate enough tiny errors that it would drop a frame. It is better to just round 
+                // small deviations down to zero to leave things running smoothly.
+
+                if (abs(static_cast<int64>(timeDelta - m_targetElapsedTicks)) < TicksPerSecond / 4000)
+                {
+                    timeDelta = m_targetElapsedTicks;
+                }
+
+                m_leftOverTicks += timeDelta;
+
+                while (m_leftOverTicks >= m_targetElapsedTicks)
+                {
+                    m_elapsedTicks = m_targetElapsedTicks;
+                    m_totalTicks += m_targetElapsedTicks;
+                    m_leftOverTicks -= m_targetElapsedTicks;
+                    m_frameCount++;
+
+                    update();
+                }
+            }
+            else
+            {
+                // Variable timestep update logic.
+                m_elapsedTicks = timeDelta;
+                m_totalTicks += timeDelta;
+                m_leftOverTicks = 0;
+                m_frameCount++;
+
+                update();
+            }
+
+            // Track the current framerate.
+            if (m_frameCount != lastFrameCount)
+            {
+                m_framesThisSecond++;
+            }
+
+            if (m_qpcSecondCounter >= static_cast<uint64>(m_qpcFrequency.QuadPart))
+            {
+                m_framesPerSecond = m_framesThisSecond;
+                m_framesThisSecond = 0;
+                m_qpcSecondCounter %= m_qpcFrequency.QuadPart;
+            }
+        }
+
+    private:
+        // Source timing data uses QPC units.
+        LARGE_INTEGER m_qpcFrequency;
+        LARGE_INTEGER m_qpcLastTime;
+        uint64 m_qpcMaxDelta;
+
+        // Derived timing data uses a canonical tick format.
+        uint64 m_elapsedTicks;
+        uint64 m_totalTicks;
+        uint64 m_leftOverTicks;
+
+        // Members for tracking the framerate.
+        uint32 m_frameCount;
+        uint32 m_framesPerSecond;
+        uint32 m_framesThisSecond;
+        uint64 m_qpcSecondCounter;
+
+        // Members for configuring fixed timestep mode.
+        bool m_isFixedTimeStep;
+        uint64 m_targetElapsedTicks;
+    };
+}
diff --git a/NativeApp/src/UWP/UWPAppBase.cpp b/NativeApp/src/UWP/UWPAppBase.cpp
new file mode 100644
index 0000000..346b2bd
--- /dev/null
+++ b/NativeApp/src/UWP/UWPAppBase.cpp
@@ -0,0 +1,50 @@
+/*     Copyright 2015-2018 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#include "UWPAppBase.h"
+
+namespace Diligent
+{
+
+UWPAppBase::UWPAppBase()
+{
+    // TODO: Change the timer settings if you want something other than the default variable timestep mode.
+    // e.g. for 60 FPS fixed timestep update logic, call:
+    /*
+    m_timer.SetFixedTimeStep(true);
+    m_timer.SetTargetElapsedSeconds(1.0 / 60);
+    */
+}
+
+void UWPAppBase::Update()
+{
+    // Update scene objects.
+    m_timer.Tick([&]()
+    {
+        auto CurrTime = m_timer.GetTotalSeconds();
+        auto ElapsedTime = m_timer.GetElapsedSeconds();
+        Update(CurrTime, ElapsedTime);
+    });
+}
+
+}
diff --git a/NativeApp/src/UWP/dummy.cpp b/NativeApp/src/UWP/dummy.cpp
new file mode 100644
index 0000000..5caae53
--- /dev/null
+++ b/NativeApp/src/UWP/dummy.cpp
@@ -0,0 +1,7 @@
+#include "AppBase.h"
+
+// This dummy file is only required for the NativeAppBase.lib to be created, 
+// which is required to avoid linker error
+
+// We cannot add real source to this library because Windows Runtime types cannot 
+// be included into static libraries
\ No newline at end of file