170422C++DirectX11テクスチャ - Main.cpp

Main.cpp

#pragma comment(lib,"d3d11.lib")
#pragma comment(lib,"d3dCompiler.lib")
#pragma comment(lib,"winmm.lib")
#include <windows.h>
#include <d3d11_1.h>
#include <d3dcompiler.h>
#include <directxmath.h>
#include <directxcolors.h>
#include "DDSTextureLoader.h"

using namespace DirectX;

//--------------------------------------------------------------------------------------
// 構造体
//--------------------------------------------------------------------------------------
struct SimpleVertex
{
    XMFLOAT3 Pos;
    XMFLOAT2 Tex;
};

struct CBNeverChanges
{
    XMMATRIX mView;
};

struct CBChangeOnResize
{
    XMMATRIX mProjection;
};

struct CBChangesEveryFrame
{
    XMMATRIX mWorld;
};


//--------------------------------------------------------------------------------------
// グローバル変数
//--------------------------------------------------------------------------------------
HINSTANCE                           g_hInst = nullptr;
HWND                                g_hWnd = nullptr;
D3D_DRIVER_TYPE                     g_driverType = D3D_DRIVER_TYPE_NULL;
D3D_FEATURE_LEVEL                   g_featureLevel = D3D_FEATURE_LEVEL_11_0;
ID3D11Device*                       g_pd3dDevice = nullptr;
ID3D11Device1*                      g_pd3dDevice1 = nullptr;
ID3D11DeviceContext*                g_pImmediateContext = nullptr;
ID3D11DeviceContext1*               g_pImmediateContext1 = nullptr;
IDXGISwapChain*                     g_pSwapChain = nullptr;
IDXGISwapChain1*                    g_pSwapChain1 = nullptr;
ID3D11RenderTargetView*             g_pRenderTargetView = nullptr;
ID3D11Texture2D*                    g_pDepthStencil = nullptr;
ID3D11DepthStencilView*             g_pDepthStencilView = nullptr;
ID3D11VertexShader*                 g_pVertexShader = nullptr;
ID3D11PixelShader*                  g_pPixelShader = nullptr;
ID3D11InputLayout*                  g_pVertexLayout = nullptr;
ID3D11Buffer*                       g_pVertexBuffer = nullptr;
ID3D11Buffer*                       g_pIndexBuffer = nullptr;
ID3D11Buffer*                       g_pCBNeverChanges = nullptr;
ID3D11Buffer*                       g_pCBChangeOnResize = nullptr;
ID3D11Buffer*                       g_pCBChangesEveryFrame = nullptr;
ID3D11ShaderResourceView*           g_pTextureRV = nullptr;
ID3D11SamplerState*                 g_pSamplerLinear = nullptr;
XMMATRIX                            g_World;
XMMATRIX                            g_View;
XMMATRIX                            g_Projection;


//--------------------------------------------------------------------------------------
// 前方宣言
//--------------------------------------------------------------------------------------
HRESULT InitWindow( HINSTANCE hInstance, int nCmdShow );
HRESULT InitDevice();
void CleanupDevice();
LRESULT CALLBACK    WndProc( HWND, UINT, WPARAM, LPARAM );
void Render();


int WINAPI wWinMain( _In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPWSTR lpCmdLine, _In_ int nCmdShow )
{
    UNREFERENCED_PARAMETER( hPrevInstance );
    UNREFERENCED_PARAMETER( lpCmdLine );

    if( FAILED( InitWindow( hInstance, nCmdShow ) ) )
        return 0;

    if( FAILED( InitDevice() ) )
    {
        CleanupDevice();
        return 0;
    }

    // メインメッセージループ
    MSG msg = { 0 };
    timeBeginPeriod(1);//タイマの精度を上げる
    while (WM_QUIT != msg.message)
    {
        if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else
        {
            Render();
        }
        Sleep(1);
    }
    timeEndPeriod(1);

    CleanupDevice();

    return ( int )msg.wParam;
}


HRESULT InitWindow( HINSTANCE hInstance, int nCmdShow )
{
    WNDCLASSEX wcex;
    wcex.cbSize = sizeof( WNDCLASSEX );
    wcex.style = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc = WndProc;
    wcex.cbClsExtra = 0;
    wcex.cbWndExtra = 0;
    wcex.hInstance = hInstance;
wcex.hIcon = NULL;
    wcex.hCursor = LoadCursor( nullptr, IDC_ARROW );
    wcex.hbrBackground = ( HBRUSH )( COLOR_WINDOW + 1 );
    wcex.lpszMenuName = nullptr;
    wcex.lpszClassName = L"TutorialWindowClass";
wcex.hIconSm = NULL;
    if( !RegisterClassEx( &wcex ) )
        return E_FAIL;

    g_hInst = hInstance;
    RECT rc = { 0, 0, 400, 300 };
    AdjustWindowRect( &rc, WS_OVERLAPPEDWINDOW, FALSE );
    g_hWnd = CreateWindow( L"TutorialWindowClass", L"テクスチャ",
                           WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
                           CW_USEDEFAULT, CW_USEDEFAULT, rc.right - rc.left, rc.bottom - rc.top, nullptr, nullptr, hInstance,
                           nullptr );
    if( !g_hWnd )
        return E_FAIL;

    ShowWindow( g_hWnd, nCmdShow );

    return S_OK;
}


HRESULT CompileShaderFromFile( WCHAR* szFileName, LPCSTR szEntryPoint, LPCSTR szShaderModel, ID3DBlob** ppBlobOut )
{
    HRESULT hr = S_OK;

    DWORD dwShaderFlags = D3DCOMPILE_ENABLE_STRICTNESS;
#ifdef _DEBUG
    dwShaderFlags |= D3DCOMPILE_DEBUG;

    dwShaderFlags |= D3DCOMPILE_SKIP_OPTIMIZATION;
#endif

    ID3DBlob* pErrorBlob = nullptr;
    hr = D3DCompileFromFile( szFileName, nullptr, nullptr, szEntryPoint, szShaderModel, 
        dwShaderFlags, 0, ppBlobOut, &pErrorBlob );
    if( FAILED(hr) )
    {
        if( pErrorBlob )
        {
            OutputDebugStringA( reinterpret_cast<const char*>( pErrorBlob->GetBufferPointer() ) );
            pErrorBlob->Release();
        }
        return hr;
    }
    if( pErrorBlob ) pErrorBlob->Release();

    return S_OK;
}


HRESULT InitDevice()
{
    HRESULT hr = S_OK;

    RECT rc;
    GetClientRect( g_hWnd, &rc );
    UINT width = rc.right - rc.left;
    UINT height = rc.bottom - rc.top;

    UINT createDeviceFlags = 0;
#ifdef _DEBUG
    createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
#endif

    D3D_DRIVER_TYPE driverTypes[] =
    {
        D3D_DRIVER_TYPE_HARDWARE,
        D3D_DRIVER_TYPE_WARP,
        D3D_DRIVER_TYPE_REFERENCE,
    };
    UINT numDriverTypes = ARRAYSIZE( driverTypes );

    D3D_FEATURE_LEVEL featureLevels[] =
    {
        D3D_FEATURE_LEVEL_11_1,
        D3D_FEATURE_LEVEL_11_0,
        D3D_FEATURE_LEVEL_10_1,
        D3D_FEATURE_LEVEL_10_0,
    };
    UINT numFeatureLevels = ARRAYSIZE( featureLevels );

    for( UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++ )
    {
        g_driverType = driverTypes[driverTypeIndex];
        hr = D3D11CreateDevice( nullptr, g_driverType, nullptr, createDeviceFlags, featureLevels, numFeatureLevels,
                                D3D11_SDK_VERSION, &g_pd3dDevice, &g_featureLevel, &g_pImmediateContext );

        if ( hr == E_INVALIDARG )
        {
            hr = D3D11CreateDevice( nullptr, g_driverType, nullptr, createDeviceFlags, &featureLevels[1], numFeatureLevels - 1,
                                    D3D11_SDK_VERSION, &g_pd3dDevice, &g_featureLevel, &g_pImmediateContext );
        }

        if( SUCCEEDED( hr ) )
            break;
    }
    if( FAILED( hr ) )
        return hr;

    IDXGIFactory1* dxgiFactory = nullptr;
    {
        IDXGIDevice* dxgiDevice = nullptr;
        hr = g_pd3dDevice->QueryInterface( __uuidof(IDXGIDevice), reinterpret_cast<void**>(&dxgiDevice) );
        if (SUCCEEDED(hr))
        {
            IDXGIAdapter* adapter = nullptr;
            hr = dxgiDevice->GetAdapter(&adapter);
            if (SUCCEEDED(hr))
            {
                hr = adapter->GetParent( __uuidof(IDXGIFactory1), reinterpret_cast<void**>(&dxgiFactory) );
                adapter->Release();
            }
            dxgiDevice->Release();
        }
    }
    if (FAILED(hr))
        return hr;

    IDXGIFactory2* dxgiFactory2 = nullptr;
    hr = dxgiFactory->QueryInterface( __uuidof(IDXGIFactory2), reinterpret_cast<void**>(&dxgiFactory2) );
    if ( dxgiFactory2 )
    {
        hr = g_pd3dDevice->QueryInterface( __uuidof(ID3D11Device1), reinterpret_cast<void**>(&g_pd3dDevice1) );
        if (SUCCEEDED(hr))
        {
            (void) g_pImmediateContext->QueryInterface( __uuidof(ID3D11DeviceContext1), reinterpret_cast<void**>(&g_pImmediateContext1) );
        }

        DXGI_SWAP_CHAIN_DESC1 sd;
        ZeroMemory(&sd, sizeof(sd));
        sd.Width = width;
        sd.Height = height;
        sd.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
        sd.SampleDesc.Count = 1;
        sd.SampleDesc.Quality = 0;
        sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
        sd.BufferCount = 1;

        hr = dxgiFactory2->CreateSwapChainForHwnd( g_pd3dDevice, g_hWnd, &sd, nullptr, nullptr, &g_pSwapChain1 );
        if (SUCCEEDED(hr))
        {
            hr = g_pSwapChain1->QueryInterface( __uuidof(IDXGISwapChain), reinterpret_cast<void**>(&g_pSwapChain) );
        }

        dxgiFactory2->Release();
    }
    else
    {
        DXGI_SWAP_CHAIN_DESC sd;
        ZeroMemory(&sd, sizeof(sd));
        sd.BufferCount = 1;
        sd.BufferDesc.Width = width;
        sd.BufferDesc.Height = height;
        sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
        sd.BufferDesc.RefreshRate.Numerator = 60;
        sd.BufferDesc.RefreshRate.Denominator = 1;
        sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
        sd.OutputWindow = g_hWnd;
        sd.SampleDesc.Count = 1;
        sd.SampleDesc.Quality = 0;
        sd.Windowed = TRUE;

        hr = dxgiFactory->CreateSwapChain( g_pd3dDevice, &sd, &g_pSwapChain );
    }

    dxgiFactory->MakeWindowAssociation( g_hWnd, DXGI_MWA_NO_ALT_ENTER );

    dxgiFactory->Release();

    if (FAILED(hr))
        return hr;

    ID3D11Texture2D* pBackBuffer = nullptr;
    hr = g_pSwapChain->GetBuffer( 0, __uuidof( ID3D11Texture2D ), reinterpret_cast<void**>( &pBackBuffer ) );
    if( FAILED( hr ) )
        return hr;

    hr = g_pd3dDevice->CreateRenderTargetView( pBackBuffer, nullptr, &g_pRenderTargetView );
    pBackBuffer->Release();
    if( FAILED( hr ) )
        return hr;

    // 深度ステンシルテクスチャの作成
    D3D11_TEXTURE2D_DESC descDepth;
    ZeroMemory( &descDepth, sizeof(descDepth) );
    descDepth.Width = width;
    descDepth.Height = height;
    descDepth.MipLevels = 1;
    descDepth.ArraySize = 1;
    descDepth.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
    descDepth.SampleDesc.Count = 1;
    descDepth.SampleDesc.Quality = 0;
    descDepth.Usage = D3D11_USAGE_DEFAULT;
    descDepth.BindFlags = D3D11_BIND_DEPTH_STENCIL;
    descDepth.CPUAccessFlags = 0;
    descDepth.MiscFlags = 0;
    hr = g_pd3dDevice->CreateTexture2D( &descDepth, nullptr, &g_pDepthStencil );
    if( FAILED( hr ) )
        return hr;

    // 深度ステンシルビューの作成
    D3D11_DEPTH_STENCIL_VIEW_DESC descDSV;
    ZeroMemory( &descDSV, sizeof(descDSV) );
    descDSV.Format = descDepth.Format;
    descDSV.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
    descDSV.Texture2D.MipSlice = 0;
    hr = g_pd3dDevice->CreateDepthStencilView( g_pDepthStencil, &descDSV, &g_pDepthStencilView );
    if( FAILED( hr ) )
        return hr;

    g_pImmediateContext->OMSetRenderTargets( 1, &g_pRenderTargetView, g_pDepthStencilView );

    D3D11_VIEWPORT vp;
    vp.Width = (FLOAT)width;
    vp.Height = (FLOAT)height;
    vp.MinDepth = 0.0f;
    vp.MaxDepth = 1.0f;
    vp.TopLeftX = 0;
    vp.TopLeftY = 0;
    g_pImmediateContext->RSSetViewports( 1, &vp );

    // バーテックスシェーダのコンパイル
    ID3DBlob* pVSBlob = nullptr;
    hr = CompileShaderFromFile( L"shaders.hlsl", "VS", "vs_4_0", &pVSBlob );
    if( FAILED( hr ) )
    {
        MessageBox( nullptr,
                    L"HLSLファイルをコンパイルできません。HLSLファイルを含むディレクトリからこの実行可能ファイルを実行してください。", L"Error", MB_OK );
        return hr;
    }

    // バーテックスシェーダの作成
    hr = g_pd3dDevice->CreateVertexShader( pVSBlob->GetBufferPointer(), pVSBlob->GetBufferSize(), nullptr, &g_pVertexShader );
    if( FAILED( hr ) )
    {    
        pVSBlob->Release();
        return hr;
    }

    // インプットレイアウトの定義
    D3D11_INPUT_ELEMENT_DESC layout[] =
    {
        { "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
        { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 },
    };
    UINT numElements = ARRAYSIZE( layout );

    // インプットレイアウトの作成
    hr = g_pd3dDevice->CreateInputLayout( layout, numElements, pVSBlob->GetBufferPointer(),
                                          pVSBlob->GetBufferSize(), &g_pVertexLayout );
    pVSBlob->Release();
    if( FAILED( hr ) )
        return hr;

    // インプットレイアウトの設定
    g_pImmediateContext->IASetInputLayout( g_pVertexLayout );

    // ピクセルシェーダのコンパイル
    ID3DBlob* pPSBlob = nullptr;
    hr = CompileShaderFromFile( L"shaders.hlsl", "PS", "ps_4_0", &pPSBlob );
    if( FAILED( hr ) )
    {
        MessageBox( nullptr,
                    L"HLSLファイルをコンパイルできません。HLSLファイルを含むディレクトリからこの実行可能ファイルを実行してください。", L"Error", MB_OK );
        return hr;
    }

    // ピクセルシェーダの作成
    hr = g_pd3dDevice->CreatePixelShader( pPSBlob->GetBufferPointer(), pPSBlob->GetBufferSize(), nullptr, &g_pPixelShader );
    pPSBlob->Release();
    if( FAILED( hr ) )
        return hr;

    // バーテックスバッファの作成
    SimpleVertex vertices[] =
    {
        { XMFLOAT3( -1.0f, 1.0f, -1.0f ), XMFLOAT2( 1.0f, 0.0f ) },
        { XMFLOAT3( 1.0f, 1.0f, -1.0f ), XMFLOAT2( 0.0f, 0.0f ) },
        { XMFLOAT3( 1.0f, 1.0f, 1.0f ), XMFLOAT2( 0.0f, 1.0f ) },
        { XMFLOAT3( -1.0f, 1.0f, 1.0f ), XMFLOAT2( 1.0f, 1.0f ) },

        { XMFLOAT3( -1.0f, -1.0f, -1.0f ), XMFLOAT2( 0.0f, 0.0f ) },
        { XMFLOAT3( 1.0f, -1.0f, -1.0f ), XMFLOAT2( 1.0f, 0.0f ) },
        { XMFLOAT3( 1.0f, -1.0f, 1.0f ), XMFLOAT2( 1.0f, 1.0f ) },
        { XMFLOAT3( -1.0f, -1.0f, 1.0f ), XMFLOAT2( 0.0f, 1.0f ) },

        { XMFLOAT3( -1.0f, -1.0f, 1.0f ), XMFLOAT2( 0.0f, 1.0f ) },
        { XMFLOAT3( -1.0f, -1.0f, -1.0f ), XMFLOAT2( 1.0f, 1.0f ) },
        { XMFLOAT3( -1.0f, 1.0f, -1.0f ), XMFLOAT2( 1.0f, 0.0f ) },
        { XMFLOAT3( -1.0f, 1.0f, 1.0f ), XMFLOAT2( 0.0f, 0.0f ) },

        { XMFLOAT3( 1.0f, -1.0f, 1.0f ), XMFLOAT2( 1.0f, 1.0f ) },
        { XMFLOAT3( 1.0f, -1.0f, -1.0f ), XMFLOAT2( 0.0f, 1.0f ) },
        { XMFLOAT3( 1.0f, 1.0f, -1.0f ), XMFLOAT2( 0.0f, 0.0f ) },
        { XMFLOAT3( 1.0f, 1.0f, 1.0f ), XMFLOAT2( 1.0f, 0.0f ) },

        { XMFLOAT3( -1.0f, -1.0f, -1.0f ), XMFLOAT2( 0.0f, 1.0f ) },
        { XMFLOAT3( 1.0f, -1.0f, -1.0f ), XMFLOAT2( 1.0f, 1.0f ) },
        { XMFLOAT3( 1.0f, 1.0f, -1.0f ), XMFLOAT2( 1.0f, 0.0f ) },
        { XMFLOAT3( -1.0f, 1.0f, -1.0f ), XMFLOAT2( 0.0f, 0.0f ) },

        { XMFLOAT3( -1.0f, -1.0f, 1.0f ), XMFLOAT2( 1.0f, 1.0f ) },
        { XMFLOAT3( 1.0f, -1.0f, 1.0f ), XMFLOAT2( 0.0f, 1.0f ) },
        { XMFLOAT3( 1.0f, 1.0f, 1.0f ), XMFLOAT2( 0.0f, 0.0f ) },
        { XMFLOAT3( -1.0f, 1.0f, 1.0f ), XMFLOAT2( 1.0f, 0.0f ) },
    };

    D3D11_BUFFER_DESC bd;
    ZeroMemory( &bd, sizeof(bd) );
    bd.Usage = D3D11_USAGE_DEFAULT;
    bd.ByteWidth = sizeof( SimpleVertex ) * 24;
    bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
    bd.CPUAccessFlags = 0;
    D3D11_SUBRESOURCE_DATA InitData;
    ZeroMemory( &InitData, sizeof(InitData) );
    InitData.pSysMem = vertices;
    hr = g_pd3dDevice->CreateBuffer( &bd, &InitData, &g_pVertexBuffer );
    if( FAILED( hr ) )
        return hr;

    // バーテックスバッファの設定
    UINT stride = sizeof( SimpleVertex );
    UINT offset = 0;
    g_pImmediateContext->IASetVertexBuffers( 0, 1, &g_pVertexBuffer, &stride, &offset );

    // インデックスバッファの作成
    // バーテックスバッファの作成
    WORD indices[] =
    {
        3,1,0,
        2,1,3,

        6,4,5,
        7,4,6,

        11,9,8,
        10,9,11,

        14,12,13,
        15,12,14,

        19,17,16,
        18,17,19,

        22,20,21,
        23,20,22
    };

    bd.Usage = D3D11_USAGE_DEFAULT;
    bd.ByteWidth = sizeof( WORD ) * 36;
    bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
    bd.CPUAccessFlags = 0;
    InitData.pSysMem = indices;
    hr = g_pd3dDevice->CreateBuffer( &bd, &InitData, &g_pIndexBuffer );
    if( FAILED( hr ) )
        return hr;

    // インデックスバッファの設定
    g_pImmediateContext->IASetIndexBuffer( g_pIndexBuffer, DXGI_FORMAT_R16_UINT, 0 );

    // プリミティブトポロジの設定
    g_pImmediateContext->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST );

    // コンスタントバッファの作成
    bd.Usage = D3D11_USAGE_DEFAULT;
    bd.ByteWidth = sizeof(CBNeverChanges);
    bd.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
    bd.CPUAccessFlags = 0;
    hr = g_pd3dDevice->CreateBuffer( &bd, nullptr, &g_pCBNeverChanges );
    if( FAILED( hr ) )
        return hr;
    
    bd.ByteWidth = sizeof(CBChangeOnResize);
    hr = g_pd3dDevice->CreateBuffer( &bd, nullptr, &g_pCBChangeOnResize );
    if( FAILED( hr ) )
        return hr;
    
    bd.ByteWidth = sizeof(CBChangesEveryFrame);
    hr = g_pd3dDevice->CreateBuffer( &bd, nullptr, &g_pCBChangesEveryFrame );
    if( FAILED( hr ) )
        return hr;

    // テクスチャの読み込み
    hr = CreateDDSTextureFromFile( g_pd3dDevice, L"tex.dds", nullptr, &g_pTextureRV );
    if( FAILED( hr ) )
        return hr;

    // サンプルステートの作成
    D3D11_SAMPLER_DESC sampDesc;
    ZeroMemory( &sampDesc, sizeof(sampDesc) );
    sampDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
    sampDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
    sampDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
    sampDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
    sampDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
    sampDesc.MinLOD = 0;
    sampDesc.MaxLOD = D3D11_FLOAT32_MAX;
    hr = g_pd3dDevice->CreateSamplerState( &sampDesc, &g_pSamplerLinear );
    if( FAILED( hr ) )
        return hr;

// ワールドマトリックスの初期化
    g_World = XMMatrixIdentity();

// ビューマトリックスの初期化
    XMVECTOR Eye = XMVectorSet( 0.0f, 3.0f, -6.0f, 0.0f );
    XMVECTOR At = XMVectorSet( 0.0f, 1.0f, 0.0f, 0.0f );
    XMVECTOR Up = XMVectorSet( 0.0f, 1.0f, 0.0f, 0.0f );
    g_View = XMMatrixLookAtLH( Eye, At, Up );

    CBNeverChanges cbNeverChanges;
    cbNeverChanges.mView = XMMatrixTranspose( g_View );
    g_pImmediateContext->UpdateSubresource( g_pCBNeverChanges, 0, nullptr, &cbNeverChanges, 0, 0 );

// プロジェクションマトリックスの初期化
    g_Projection = XMMatrixPerspectiveFovLH( XM_PIDIV4, width / (FLOAT)height, 0.01f, 100.0f );
    
    CBChangeOnResize cbChangesOnResize;
    cbChangesOnResize.mProjection = XMMatrixTranspose( g_Projection );
    g_pImmediateContext->UpdateSubresource( g_pCBChangeOnResize, 0, nullptr, &cbChangesOnResize, 0, 0 );

    return S_OK;
}


void CleanupDevice()
{
    if( g_pImmediateContext ) g_pImmediateContext->ClearState();

    if( g_pSamplerLinear ) g_pSamplerLinear->Release();
    if( g_pTextureRV ) g_pTextureRV->Release();
    if( g_pCBNeverChanges ) g_pCBNeverChanges->Release();
    if( g_pCBChangeOnResize ) g_pCBChangeOnResize->Release();
    if( g_pCBChangesEveryFrame ) g_pCBChangesEveryFrame->Release();
    if( g_pVertexBuffer ) g_pVertexBuffer->Release();
    if( g_pIndexBuffer ) g_pIndexBuffer->Release();
    if( g_pVertexLayout ) g_pVertexLayout->Release();
    if( g_pVertexShader ) g_pVertexShader->Release();
    if( g_pPixelShader ) g_pPixelShader->Release();
    if( g_pDepthStencil ) g_pDepthStencil->Release();
    if( g_pDepthStencilView ) g_pDepthStencilView->Release();
    if( g_pRenderTargetView ) g_pRenderTargetView->Release();
    if( g_pSwapChain1 ) g_pSwapChain1->Release();
    if( g_pSwapChain ) g_pSwapChain->Release();
    if( g_pImmediateContext1 ) g_pImmediateContext1->Release();
    if( g_pImmediateContext ) g_pImmediateContext->Release();
    if( g_pd3dDevice1 ) g_pd3dDevice1->Release();
    if( g_pd3dDevice ) g_pd3dDevice->Release();
}


LRESULT CALLBACK WndProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam )
{
    PAINTSTRUCT ps;
    HDC hdc;

    switch( message )
    {
    case WM_PAINT:
        hdc = BeginPaint( hWnd, &ps );
        EndPaint( hWnd, &ps );
        break;

    case WM_DESTROY:
        PostQuitMessage( 0 );
        break;

    default:
        return DefWindowProc( hWnd, message, wParam, lParam );
    }

    return 0;
}


void Render()
{
    // 時間の更新
    static float t = 0.0f;
    if( g_driverType == D3D_DRIVER_TYPE_REFERENCE )
    {
        t += ( float )XM_PI * 0.0125f;
    }
    else
    {
        static ULONGLONG timeStart = 0;
        ULONGLONG timeCur = GetTickCount64();
        if( timeStart == 0 )
            timeStart = timeCur;
        t = ( timeCur - timeStart ) / 1000.0f;
    }

    // キューブを原点を中心に回転
    g_World = XMMatrixRotationY( t );

    //
    // バックバッファのクリア
    //
    g_pImmediateContext->ClearRenderTargetView( g_pRenderTargetView, Colors::Aquamarine);

    //
    // 深度バッファを1.0（最大深度）にクリア
    //
    g_pImmediateContext->ClearDepthStencilView( g_pDepthStencilView, D3D11_CLEAR_DEPTH, 1.0f, 0 );

    //
    // 1フレームごとに1度変わる変数を更新
    //
    CBChangesEveryFrame cb;
    cb.mWorld = XMMatrixTranspose( g_World );
    g_pImmediateContext->UpdateSubresource( g_pCBChangesEveryFrame, 0, nullptr, &cb, 0, 0 );

    //
    // キューブの描画
    //
    g_pImmediateContext->VSSetShader( g_pVertexShader, nullptr, 0 );
    g_pImmediateContext->VSSetConstantBuffers( 0, 1, &g_pCBNeverChanges );
    g_pImmediateContext->VSSetConstantBuffers( 1, 1, &g_pCBChangeOnResize );
    g_pImmediateContext->VSSetConstantBuffers( 2, 1, &g_pCBChangesEveryFrame );
    g_pImmediateContext->PSSetShader( g_pPixelShader, nullptr, 0 );
    g_pImmediateContext->PSSetConstantBuffers( 2, 1, &g_pCBChangesEveryFrame );
    g_pImmediateContext->PSSetShaderResources( 0, 1, &g_pTextureRV );
    g_pImmediateContext->PSSetSamplers( 0, 1, &g_pSamplerLinear );
    g_pImmediateContext->DrawIndexed( 36, 0, 0 );

    //
    // バックバッファをフロントバッファに渡す
    //
    g_pSwapChain->Present( 0, 0 );
}