Updating to [email protected] and [email protected] with a new directory structure.

NvBlast folder is gone, files have been moved to top level directory.  README is changed to reflect this.

1 files changed, 795 insertions, 0 deletions

diff --git a/samples/SampleBase/core/DeviceManager.cpp b/samples/SampleBase/core/DeviceManager.cpp
new file mode 100644
index 0000000..26f9fbb
--- /dev/null
+++ b/samples/SampleBase/core/DeviceManager.cpp
@@ -0,0 +1,795 @@
+// TAGRELEASE: PUBLIC
+
+#include "DeviceManager.h"
+#include <WinUser.h>
+#include <Windows.h>
+#include <assert.h>
+#include <sstream>
+#include <algorithm>
+#include "SampleProfiler.h"
+
+#ifndef SAFE_RELEASE
+#define SAFE_RELEASE(p)      { if (p) { (p)->Release(); (p)=NULL; } }
+#endif
+
+#define WINDOW_CLASS_NAME   L"NvDX11"
+
+#define WINDOW_STYLE_NORMAL         (WS_OVERLAPPEDWINDOW | WS_VISIBLE)
+#define WINDOW_STYLE_FULLSCREEN     (WS_POPUP | WS_SYSMENU | WS_VISIBLE)
+
+// A singleton, sort of... To pass the events from WindowProc to the object.
+DeviceManager* g_DeviceManagerInstance = NULL;
+
+#undef min
+#undef max
+
+LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    if(g_DeviceManagerInstance)
+        return g_DeviceManagerInstance->MsgProc(hWnd, uMsg, wParam, lParam);
+    else
+        return DefWindowProc(hWnd, uMsg, wParam, lParam);
+}
+
+DeviceManager* GetDeviceManager()
+{
+    return g_DeviceManagerInstance;
+}
+
+namespace
+{
+	bool IsNvDeviceID(UINT id)
+	{
+		return id == 0x10DE;
+	}
+
+	// Find an adapter whose name contains the given string.
+	IDXGIAdapter* FindAdapter(const WCHAR* targetName, bool& isNv)
+	{
+		IDXGIAdapter* targetAdapter = NULL;
+		IDXGIFactory* IDXGIFactory_0001 = NULL;
+		HRESULT hres = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&IDXGIFactory_0001);
+		if (hres != S_OK) 
+		{
+			printf("ERROR in CreateDXGIFactory, %s@%d.\nFor more info, get log from debug D3D runtime: (1) Install DX SDK, and enable Debug D3D from DX Control Panel Utility. (2) Install and start DbgView. (3) Try running the program again.\n",__FILE__,__LINE__); 
+			return targetAdapter;
+		}
+
+		unsigned int adapterNo = 0;
+		while (SUCCEEDED(hres))
+		{
+			IDXGIAdapter* pAdapter = NULL;
+			hres = IDXGIFactory_0001->EnumAdapters(adapterNo, (IDXGIAdapter**)&pAdapter);
+
+			if (SUCCEEDED(hres))
+			{
+				DXGI_ADAPTER_DESC aDesc;
+				pAdapter->GetDesc(&aDesc);
+
+				// If no name is specified, return the first adapater.  This is the same behaviour as the 
+				// default specified for D3D11CreateDevice when no adapter is specified.
+				if (wcslen(targetName) == 0)
+				{
+					targetAdapter = pAdapter;
+					isNv = IsNvDeviceID(aDesc.VendorId);
+					break;
+				}
+
+				std::wstring aName = aDesc.Description;
+				if (aName.find(targetName) != std::string::npos)
+				{
+					targetAdapter = pAdapter;
+					isNv = IsNvDeviceID(aDesc.VendorId);
+				}
+				else
+				{
+					pAdapter->Release();
+				}
+			}
+
+			adapterNo++;
+		}
+
+		if (IDXGIFactory_0001)
+			IDXGIFactory_0001->Release();
+
+		return targetAdapter;
+	}
+
+	// Adjust window rect so that it is centred on the given adapter.  Clamps to fit if it's too big.
+	RECT MoveWindowOntoAdapter(IDXGIAdapter* targetAdapter, const RECT& rect)
+	{
+		assert(targetAdapter != NULL);
+
+		RECT result = rect;
+		HRESULT hres = S_OK;
+		unsigned int outputNo = 0;
+		while (SUCCEEDED(hres))
+		{
+			IDXGIOutput* pOutput = NULL;
+			hres = targetAdapter->EnumOutputs(outputNo++, &pOutput);
+
+			if (SUCCEEDED(hres) && pOutput)
+			{
+				DXGI_OUTPUT_DESC OutputDesc;
+				pOutput->GetDesc( &OutputDesc );
+				const RECT desktop = OutputDesc.DesktopCoordinates;
+				const int centreX = (int) desktop.left + (int)(desktop.right - desktop.left) / 2;
+				const int centreY = (int) desktop.top + (int)(desktop.bottom - desktop.top) / 2;
+				const int winW = rect.right - rect.left;
+				const int winH = rect.bottom - rect.top;
+				int left = centreX - winW/2;
+				int right = left + winW;
+				int top = centreY - winH/2;
+				int bottom = top + winH;
+				result.left = std::max(left, (int) desktop.left);
+				result.right = std::min(right, (int) desktop.right);
+				result.bottom = std::min(bottom, (int) desktop.bottom);
+				result.top = std::max(top, (int) desktop.top);
+                pOutput->Release();
+
+				// If there is more than one output, go with the first found.  Multi-monitor support could go here.
+				break;
+			}
+		}
+		return result;
+	}
+}
+
+HRESULT
+DeviceManager::CreateWindowDeviceAndSwapChain(const DeviceCreationParameters& params, std::wstring title)
+{
+    g_DeviceManagerInstance = this;
+    m_WindowTitle = title;
+
+    HINSTANCE hInstance = GetModuleHandle(NULL);
+    WNDCLASSEX windowClass = { sizeof(WNDCLASSEX), CS_HREDRAW | CS_VREDRAW, WindowProc,
+                        0L, 0L, hInstance, NULL, NULL, NULL, NULL, WINDOW_CLASS_NAME, NULL };
+
+    windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
+    
+    RegisterClassEx(&windowClass);
+
+    UINT windowStyle = params.startFullscreen 
+        ? WINDOW_STYLE_FULLSCREEN
+        : params.startMaximized 
+            ? (WINDOW_STYLE_NORMAL | WS_MAXIMIZE) 
+            : WINDOW_STYLE_NORMAL;
+        
+    RECT rect = { 0, 0, params.backBufferWidth, params.backBufferHeight };
+    AdjustWindowRect(&rect, windowStyle, FALSE);
+
+	IDXGIAdapter* targetAdapter = FindAdapter(params.adapterNameSubstring, m_IsNvidia);
+	if (targetAdapter)
+	{
+		rect = MoveWindowOntoAdapter(targetAdapter, rect);
+	}
+	else
+	{
+		// We could silently use a default adapter in this case.  I think it's better to choke.
+		std::wostringstream ostr;
+		ostr << L"Could not find an adapter matching \"" << params.adapterNameSubstring << "\"" << std::ends;
+		MessageBox(NULL, ostr.str().c_str(), m_WindowTitle.c_str(), MB_OK | MB_ICONERROR);
+        return E_FAIL;
+    }
+
+    m_hWnd = CreateWindowEx(
+        0,
+        WINDOW_CLASS_NAME, 
+        title.c_str(), 
+        windowStyle, 
+        rect.left, 
+        rect.top, 
+        rect.right - rect.left, 
+        rect.bottom - rect.top, 
+        GetDesktopWindow(),
+        NULL,
+        hInstance,
+        NULL
+    );
+
+    if(!m_hWnd)
+    {
+#ifdef DEBUG
+        DWORD errorCode = GetLastError();    
+        printf("CreateWindowEx error code = 0x%x\n", errorCode);
+#endif
+
+        MessageBox(NULL, L"Cannot create window", m_WindowTitle.c_str(), MB_OK | MB_ICONERROR);
+        return E_FAIL;
+    }
+
+    UpdateWindow(m_hWnd);
+
+    HRESULT hr = E_FAIL;
+
+    RECT clientRect;
+    GetClientRect(m_hWnd, &clientRect);
+    UINT width = clientRect.right - clientRect.left;
+    UINT height = clientRect.bottom - clientRect.top;
+
+    ZeroMemory(&m_SwapChainDesc, sizeof(m_SwapChainDesc));
+    m_SwapChainDesc.BufferCount = params.swapChainBufferCount;
+    m_SwapChainDesc.BufferDesc.Width = width;
+    m_SwapChainDesc.BufferDesc.Height = height;
+    m_SwapChainDesc.BufferDesc.Format = params.swapChainFormat;
+    m_SwapChainDesc.BufferDesc.RefreshRate.Numerator = params.refreshRate;
+    m_SwapChainDesc.BufferDesc.RefreshRate.Denominator = 0;
+    m_SwapChainDesc.BufferUsage = params.swapChainUsage;
+    m_SwapChainDesc.OutputWindow = m_hWnd;
+    m_SwapChainDesc.SampleDesc.Count = params.swapChainSampleCount;
+    m_SwapChainDesc.SampleDesc.Quality = params.swapChainSampleQuality;
+    m_SwapChainDesc.Windowed = !params.startFullscreen;
+    m_SwapChainDesc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
+
+	// The D3D documentation says that if adapter is non-null, driver type must be unknown.  Why not put
+	// this logic in the CreateDevice fns then?!?
+	const D3D_DRIVER_TYPE dType = (targetAdapter)? D3D_DRIVER_TYPE_UNKNOWN: params.driverType;
+
+    hr = D3D11CreateDeviceAndSwapChain(
+        targetAdapter,          // pAdapter
+        dType,					// DriverType
+        NULL,                   // Software
+        params.createDeviceFlags, // Flags
+        &params.featureLevel,   // pFeatureLevels
+        1,                      // FeatureLevels
+        D3D11_SDK_VERSION,      // SDKVersion
+        &m_SwapChainDesc,       // pSwapChainDesc
+        &m_SwapChain,           // ppSwapChain
+        &m_Device,              // ppDevice
+        NULL,                   // pFeatureLevel
+        &m_ImmediateContext     // ppImmediateContext
+    );
+
+	if (targetAdapter)
+		targetAdapter->Release();
+    
+    if(FAILED(hr))
+        return hr;
+
+    m_DepthStencilDesc.ArraySize = 1;
+    m_DepthStencilDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
+    m_DepthStencilDesc.CPUAccessFlags = 0;
+    m_DepthStencilDesc.Format = params.depthStencilFormat;
+    m_DepthStencilDesc.Width = width;
+    m_DepthStencilDesc.Height = height;
+    m_DepthStencilDesc.MipLevels = 1;
+    m_DepthStencilDesc.MiscFlags = 0;
+    m_DepthStencilDesc.SampleDesc.Count = params.swapChainSampleCount;
+    m_DepthStencilDesc.SampleDesc.Quality = 0;
+    m_DepthStencilDesc.Usage = D3D11_USAGE_DEFAULT;
+    
+    hr = CreateRenderTargetAndDepthStencil();
+
+    if(FAILED(hr))
+        return hr;
+
+    DeviceCreated();
+    BackBufferResized();
+
+    return S_OK;
+}
+
+void
+DeviceManager::Shutdown() 
+{   
+    if(m_SwapChain && GetWindowState() == kWindowFullscreen)
+        m_SwapChain->SetFullscreenState(false, NULL);
+
+    DeviceDestroyed();
+
+    SAFE_RELEASE(m_BackBufferRTV);
+    SAFE_RELEASE(m_DepthStencilDSV);
+    SAFE_RELEASE(m_DepthStencilBuffer);
+
+    g_DeviceManagerInstance = NULL;
+    SAFE_RELEASE(m_ImmediateContext);
+    SAFE_RELEASE(m_SwapChain);
+
+    ID3D11Debug * d3dDebug = nullptr;
+    if (nullptr != m_Device)
+    {
+        ID3D11DeviceContext* pCtx;
+        m_Device->GetImmediateContext(&pCtx);
+        pCtx->ClearState();
+        pCtx->Flush();
+        pCtx->Release();
+        if (SUCCEEDED(m_Device->QueryInterface(__uuidof(ID3D11Debug), reinterpret_cast<void**>(&d3dDebug))))
+        {
+            d3dDebug->ReportLiveDeviceObjects(D3D11_RLDO_DETAIL);
+            d3dDebug->Release();
+        }
+    }
+    SAFE_RELEASE(m_Device);
+
+    if(m_hWnd)
+    {
+        DestroyWindow(m_hWnd);
+        m_hWnd = NULL;
+    }
+}
+
+HRESULT
+DeviceManager::CreateRenderTargetAndDepthStencil()
+{
+    HRESULT hr;
+
+    ID3D11Texture2D *backBuffer = NULL; 
+    hr = m_SwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&backBuffer);
+    if (FAILED(hr))
+        return hr;
+
+    hr = m_Device->CreateRenderTargetView(backBuffer, NULL, &m_BackBufferRTV);
+    backBuffer->Release();
+    if (FAILED(hr))
+        return hr;
+
+    if(m_DepthStencilDesc.Format != DXGI_FORMAT_UNKNOWN)
+    {
+        hr = m_Device->CreateTexture2D(&m_DepthStencilDesc, NULL, &m_DepthStencilBuffer);
+        if (FAILED(hr))
+            return hr;
+
+        hr = m_Device->CreateDepthStencilView(m_DepthStencilBuffer, NULL, &m_DepthStencilDSV);
+        if (FAILED(hr))
+            return hr;
+    }
+
+    return S_OK;
+}
+
+void
+DeviceManager::MessageLoop() 
+{
+    MSG msg = {0};
+
+    LARGE_INTEGER perfFreq, previousTime;
+    QueryPerformanceFrequency(&perfFreq);
+    QueryPerformanceCounter(&previousTime);
+    
+    while (WM_QUIT != msg.message)
+    {
+        if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
+        {
+            TranslateMessage(&msg);
+            DispatchMessage(&msg);
+        }
+        else
+        {
+			PROFILER_BEGIN("Main Loop");
+
+            LARGE_INTEGER newTime;
+            QueryPerformanceCounter(&newTime);
+            
+            double elapsedSeconds = (m_FixedFrameInterval >= 0) 
+                ? m_FixedFrameInterval  
+                : (double)(newTime.QuadPart - previousTime.QuadPart) / (double)perfFreq.QuadPart;
+
+            if(m_SwapChain && GetWindowState() != kWindowMinimized)
+            {
+                Animate(elapsedSeconds);
+                Render(); 
+                m_SwapChain->Present(m_SyncInterval, 0);
+                Sleep(0);
+            }
+            else
+            {
+                // Release CPU resources when idle
+                Sleep(1);
+            }
+
+            {
+                m_vFrameTimes.push_back(elapsedSeconds);
+                double timeSum = 0;
+                for(auto it = m_vFrameTimes.begin(); it != m_vFrameTimes.end(); it++)
+                    timeSum += *it;
+
+                if(timeSum > m_AverageTimeUpdateInterval)
+                {
+                    m_AverageFrameTime = timeSum / (double)m_vFrameTimes.size();
+                    m_vFrameTimes.clear();
+                }
+            }
+
+            previousTime = newTime;
+
+			PROFILER_END();
+			PROFILER_RESET();
+        }
+
+    }
+}
+
+LRESULT 
+DeviceManager::MsgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    switch(uMsg)
+    {
+        case WM_DESTROY:
+        case WM_CLOSE:
+            PostQuitMessage(0);
+            return 0;
+
+        case WM_SYSKEYDOWN:
+            if(wParam == VK_F4)
+            {
+                PostQuitMessage(0);
+                return 0;
+            }
+            break;
+
+        case WM_ENTERSIZEMOVE:
+            m_InSizingModalLoop = true;
+            m_NewWindowSize.cx = m_SwapChainDesc.BufferDesc.Width;
+            m_NewWindowSize.cy = m_SwapChainDesc.BufferDesc.Height;
+            break;
+
+        case WM_EXITSIZEMOVE:
+            m_InSizingModalLoop = false;
+            ResizeSwapChain();
+            break;
+
+        case WM_SIZE:
+            // Ignore the WM_SIZE event if there is no device,
+            // or if the window has been minimized (size == 0),
+            // or if it has been restored to the previous size (this part is tested inside ResizeSwapChain)
+            if (m_Device && (lParam != 0))
+            {
+                m_NewWindowSize.cx = LOWORD(lParam);
+                m_NewWindowSize.cy = HIWORD(lParam);
+                    
+                if(!m_InSizingModalLoop)
+                    ResizeSwapChain();
+            }
+    }
+
+    if( uMsg >= WM_MOUSEFIRST && uMsg <= WM_MOUSELAST || 
+        uMsg >= WM_KEYFIRST && uMsg <= WM_KEYLAST )
+    {
+        // processing messages front-to-back
+        for(auto it = m_vControllers.begin(); it != m_vControllers.end(); it++)
+        {
+            if((*it)->IsEnabled())
+            {
+                // for kb/mouse messages, 0 means the message has been handled
+                if(0 == (*it)->MsgProc(hWnd, uMsg, wParam, lParam))
+                    return 0;
+            }
+        }
+    }
+
+    return DefWindowProc(hWnd, uMsg, wParam, lParam);
+}
+
+void
+DeviceManager::ResizeSwapChain()
+{
+    if(m_NewWindowSize.cx == (LONG)m_SwapChainDesc.BufferDesc.Width && 
+       m_NewWindowSize.cy == (LONG)m_SwapChainDesc.BufferDesc.Height)
+        return;
+
+    m_SwapChainDesc.BufferDesc.Width = m_NewWindowSize.cx;
+    m_SwapChainDesc.BufferDesc.Height = m_NewWindowSize.cy;
+
+    ID3D11RenderTargetView *nullRTV = NULL;
+    m_ImmediateContext->OMSetRenderTargets(1, &nullRTV, NULL);
+    SAFE_RELEASE(m_BackBufferRTV);
+    SAFE_RELEASE(m_DepthStencilDSV);
+    SAFE_RELEASE(m_DepthStencilBuffer);
+
+    if (m_SwapChain)
+    {
+        // Resize the swap chain
+        m_SwapChain->ResizeBuffers(m_SwapChainDesc.BufferCount, m_SwapChainDesc.BufferDesc.Width, 
+                                    m_SwapChainDesc.BufferDesc.Height, m_SwapChainDesc.BufferDesc.Format, 
+                                    m_SwapChainDesc.Flags);
+                    
+        m_DepthStencilDesc.Width = m_NewWindowSize.cx;
+        m_DepthStencilDesc.Height = m_NewWindowSize.cy;
+
+        CreateRenderTargetAndDepthStencil();
+
+        BackBufferResized();
+    }
+}
+
+void
+DeviceManager::Render()
+{
+	PROFILER_SCOPED_FUNCTION();
+
+    D3D11_VIEWPORT viewport = { 0.0f, 0.0f, (float)m_SwapChainDesc.BufferDesc.Width, (float)m_SwapChainDesc.BufferDesc.Height, 0.0f, 1.0f };
+
+    // rendering back-to-front
+    for(auto it = m_vControllers.rbegin(); it != m_vControllers.rend(); it++)
+    {
+        if((*it)->IsEnabled())
+        {
+            m_ImmediateContext->OMSetRenderTargets(1, &m_BackBufferRTV, m_DepthStencilDSV);
+            m_ImmediateContext->RSSetViewports(1, &viewport);
+
+            (*it)->Render(m_Device, m_ImmediateContext, m_BackBufferRTV, m_DepthStencilDSV);
+        }
+    }
+
+    m_ImmediateContext->OMSetRenderTargets(0, NULL, NULL);
+}
+
+void
+DeviceManager::Animate(double fElapsedTimeSeconds)
+{
+	PROFILER_SCOPED_FUNCTION();
+
+    // front-to-back, but the order shouldn't matter
+    for(auto it = m_vControllers.begin(); it != m_vControllers.end(); it++)
+    {
+        if((*it)->IsEnabled())
+        {
+            (*it)->Animate(fElapsedTimeSeconds);
+        }
+    }
+}
+
+void
+DeviceManager::DeviceCreated()
+{
+    // creating resources front-to-back
+    for(auto it = m_vControllers.begin(); it != m_vControllers.end(); it++)
+    {
+        (*it)->DeviceCreated(m_Device);
+    }
+}
+
+void
+DeviceManager::DeviceDestroyed()
+{
+    // releasing resources back-to-front
+    for(auto it = m_vControllers.rbegin(); it != m_vControllers.rend(); it++)
+    {
+        (*it)->DeviceDestroyed();
+    }
+}
+
+void
+DeviceManager::BackBufferResized()
+{
+    if(m_SwapChain == NULL)
+        return;
+
+    DXGI_SURFACE_DESC backSD;
+    backSD.Format = m_SwapChainDesc.BufferDesc.Format;
+    backSD.Width = m_SwapChainDesc.BufferDesc.Width;
+    backSD.Height = m_SwapChainDesc.BufferDesc.Height;
+    backSD.SampleDesc = m_SwapChainDesc.SampleDesc;
+
+    for(auto it = m_vControllers.begin(); it != m_vControllers.end(); it++)
+    {
+        (*it)->BackBufferResized(m_Device, &backSD);
+    }
+}
+
+HRESULT
+DeviceManager::ChangeBackBufferFormat(DXGI_FORMAT format, UINT sampleCount)
+{
+    HRESULT hr = E_FAIL;
+
+    if((format == DXGI_FORMAT_UNKNOWN || format == m_SwapChainDesc.BufferDesc.Format) &&
+       (sampleCount == 0 || sampleCount == m_SwapChainDesc.SampleDesc.Count))
+        return S_FALSE;
+
+    if(m_Device)
+    {
+        bool fullscreen = (GetWindowState() == kWindowFullscreen);
+        if(fullscreen)
+            m_SwapChain->SetFullscreenState(false, NULL);
+
+        IDXGISwapChain* newSwapChain = NULL;
+        DXGI_SWAP_CHAIN_DESC newSwapChainDesc = m_SwapChainDesc;
+
+        if(format != DXGI_FORMAT_UNKNOWN)
+            newSwapChainDesc.BufferDesc.Format = format;
+        if(sampleCount != 0)
+            newSwapChainDesc.SampleDesc.Count = sampleCount;
+
+        IDXGIAdapter* pDXGIAdapter = GetDXGIAdapter();
+
+        IDXGIFactory* pDXGIFactory = NULL;
+        pDXGIAdapter->GetParent(__uuidof(IDXGIFactory), reinterpret_cast<void**>(&pDXGIFactory));
+
+        hr = pDXGIFactory->CreateSwapChain(m_Device, &newSwapChainDesc, &newSwapChain);
+
+        pDXGIFactory->Release();
+        pDXGIAdapter->Release();
+        
+        if (FAILED(hr))
+        {
+            if(fullscreen)
+                m_SwapChain->SetFullscreenState(true, NULL);
+
+            return hr;
+        }
+
+        SAFE_RELEASE(m_BackBufferRTV);
+        SAFE_RELEASE(m_SwapChain);
+        SAFE_RELEASE(m_DepthStencilBuffer);
+        SAFE_RELEASE(m_DepthStencilDSV);
+
+        m_SwapChain = newSwapChain;
+        m_SwapChainDesc = newSwapChainDesc;
+
+        m_DepthStencilDesc.SampleDesc.Count = sampleCount;
+
+        if(fullscreen)                
+            m_SwapChain->SetFullscreenState(true, NULL);
+
+        CreateRenderTargetAndDepthStencil();
+        BackBufferResized();
+    }
+
+    return S_OK;
+}
+
+void
+DeviceManager::AddControllerToFront(IVisualController* pController) 
+{ 
+    m_vControllers.remove(pController);
+    m_vControllers.push_front(pController);
+}
+
+void
+DeviceManager::AddControllerToBack(IVisualController* pController) 
+{
+    m_vControllers.remove(pController);
+    m_vControllers.push_back(pController);
+}
+
+void
+DeviceManager::RemoveController(IVisualController* pController) 
+{ 
+    m_vControllers.remove(pController);
+}
+
+HRESULT 
+DeviceManager::ResizeWindow(int width, int height)
+{
+    if(m_SwapChain == NULL)
+        return E_FAIL;
+
+    RECT rect;
+    GetWindowRect(m_hWnd, &rect);
+
+    ShowWindow(m_hWnd, SW_RESTORE);
+
+    if(!MoveWindow(m_hWnd, rect.left, rect.top, width, height, true))
+        return E_FAIL;
+
+    // No need to call m_SwapChain->ResizeBackBuffer because MoveWindow will send WM_SIZE, which calls that function.
+
+    return S_OK;
+}
+
+HRESULT            
+DeviceManager::EnterFullscreenMode(int width, int height)
+{
+    if(m_SwapChain == NULL)
+        return E_FAIL;
+
+    if(GetWindowState() == kWindowFullscreen)
+        return S_FALSE;
+    
+    if(width <= 0 || height <= 0)
+    {
+        width = m_SwapChainDesc.BufferDesc.Width;
+        height = m_SwapChainDesc.BufferDesc.Height;
+    }
+     
+    SetWindowLong(m_hWnd, GWL_STYLE, WINDOW_STYLE_FULLSCREEN);
+    MoveWindow(m_hWnd, 0, 0, width, height, true);
+
+    HRESULT hr = m_SwapChain->SetFullscreenState(true, NULL);
+
+    if(FAILED(hr)) 
+    {
+        SetWindowLong(m_hWnd, GWL_STYLE, WINDOW_STYLE_NORMAL);
+        return hr;
+    }
+
+    UpdateWindow(m_hWnd);
+    m_SwapChain->GetDesc(&m_SwapChainDesc);
+
+    return S_OK;
+}
+
+HRESULT            
+DeviceManager::LeaveFullscreenMode(int windowWidth, int windowHeight)
+{
+    if(m_SwapChain == NULL)
+        return E_FAIL;
+
+    if(GetWindowState() != kWindowFullscreen)
+        return S_FALSE;
+     
+    HRESULT hr = m_SwapChain->SetFullscreenState(false, NULL);
+    if(FAILED(hr)) return hr;
+
+    SetWindowLong(m_hWnd, GWL_STYLE, WINDOW_STYLE_NORMAL);
+
+    if(windowWidth <= 0 || windowHeight <= 0)
+    {
+        windowWidth = m_SwapChainDesc.BufferDesc.Width;
+        windowHeight = m_SwapChainDesc.BufferDesc.Height;
+    }
+    
+    RECT rect = { 0, 0, windowWidth, windowHeight };
+    AdjustWindowRect(&rect, WINDOW_STYLE_NORMAL, FALSE);
+    MoveWindow(m_hWnd, 0, 0, rect.right - rect.left, rect.bottom - rect.top, true);
+    UpdateWindow(m_hWnd);
+
+    m_SwapChain->GetDesc(&m_SwapChainDesc);
+
+    return S_OK;
+}
+
+HRESULT            
+DeviceManager::ToggleFullscreen()
+{
+    if(GetWindowState() == kWindowFullscreen)
+        return LeaveFullscreenMode();
+    else
+        return EnterFullscreenMode();
+}
+
+DeviceManager::WindowState
+DeviceManager::GetWindowState() 
+{ 
+    if(m_SwapChain && !m_SwapChainDesc.Windowed)
+        return kWindowFullscreen;
+
+    if(m_hWnd == INVALID_HANDLE_VALUE)
+        return kWindowNone;
+
+    if(IsZoomed(m_hWnd))
+        return kWindowMaximized;
+
+    if(IsIconic(m_hWnd))
+        return kWindowMinimized;
+
+    return kWindowNormal;
+}
+
+HRESULT
+DeviceManager::GetDisplayResolution(int& width, int& height)
+{
+    if(m_hWnd != INVALID_HANDLE_VALUE)
+    {
+        HMONITOR monitor = MonitorFromWindow(m_hWnd, MONITOR_DEFAULTTOPRIMARY);
+        MONITORINFO info;
+        info.cbSize = sizeof(MONITORINFO);
+
+        if(GetMonitorInfo(monitor, &info))
+        {
+            width = info.rcMonitor.right - info.rcMonitor.left;
+            height = info.rcMonitor.bottom - info.rcMonitor.top;
+            return S_OK;
+        }
+    }
+
+    return E_FAIL;
+}
+
+IDXGIAdapter*   
+DeviceManager::GetDXGIAdapter()
+{   
+    if(!m_Device)
+        return NULL;
+
+    IDXGIDevice* pDXGIDevice = NULL;
+    m_Device->QueryInterface(__uuidof(IDXGIDevice), reinterpret_cast<void**>(&pDXGIDevice));
+
+    IDXGIAdapter* pDXGIAdapter = NULL;
+    pDXGIDevice->GetParent(__uuidof(IDXGIAdapter), reinterpret_cast<void**>(&pDXGIAdapter));
+
+    pDXGIDevice->Release();
+
+    return pDXGIAdapter;
+}