(2017年3月5日)
■使用ソフト
・Visual Studio Community 2015 with Update 3
■言語
・C++
■パソコン環境
・OS：Windows 7 Home Premium Service Pack 1 (64 ビット)
・プロセッサ：Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz (4 CPUs)
・メモリ：4096MB RAM
■目次
<DirectX11プログラミング>
・【C++】 DirectX11の初期化
・【C++】 三角形の描画
・【C++】 3D空間
・【C++】 3D変換
・【C++】 ライト
■作り方
１．Visual Studio Community 2015を起動する。
２．ファイル→新規作成→プロジェクトの順に選択する。
３．「新しいプロジェクト」のウィンドウが開くので、Visual C++の
Win32 プロジェクトを選択し、プロジェクトの名前・保存場所を
入力し、OKを押す。
４．「Win32 アプリケーション ウィザードへようこそ」のウィンドウ
が開くので、「次へ」を選択する。
５．「アプリケーション設定」のウィンドウが開くので、追加のオプ
ションの「空のプロジェクト」を選択し、「完了」を選択する。
６．ソリューションエクスプローラーのソースファイルを右クリック
し、「追加」→「新しい項目」を選択する。
７．「新しい項目の追加」ウィンドウが開くので、C++ファイルを選択
し、名前を付けて「追加｣を選択する。
８．ソースを以下のとおり入力する。
#pragma comment(lib,"d3d11.lib")
#pragma comment(lib,"d3dCompiler.lib")
#include <windows.h>
#include <d3d11_1.h>
#include <d3dcompiler.h>
#include <directxmath.h>
#include <directxcolors.h>
using namespace DirectX;
//--------------------------------------------------------------------------------------
// 構造体
//--------------------------------------------------------------------------------------
struct SimpleVertex
{
XMFLOAT3 Pos;
};
//--------------------------------------------------------------------------------------
// 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;
ID3D11VertexShader* g_pVertexShader = nullptr;
ID3D11PixelShader* g_pPixelShader = nullptr;
ID3D11InputLayout* g_pVertexLayout = nullptr;
ID3D11Buffer* g_pVertexBuffer = nullptr;
//--------------------------------------------------------------------------------------
// 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 };
while (WM_QUIT != msg.message)
{
if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
Render();
}
}
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"三角形の描画",
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;
g_pImmediateContext->OMSetRenderTargets(1, &g_pRenderTargetView, nullptr);
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"shader1.fx", "VS", "vs_4_0", &pVSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"FXファイルをコンパイルできません。FX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 },
};
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"shader1.fx", "PS", "ps_4_0", &pPSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"FXファイルをコンパイルできません。FX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(0.0f, 0.5f, 0.5f),
XMFLOAT3(0.5f, -0.5f, 0.5f),
XMFLOAT3(-0.5f, -0.5f, 0.5f),
};
D3D11_BUFFER_DESC bd;
ZeroMemory(&bd, sizeof(bd));
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(SimpleVertex) * 3;
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);
// プリミティブトポロジの設定
g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
return S_OK;
}
void CleanupDevice()
{
if (g_pImmediateContext) g_pImmediateContext->ClearState();
if (g_pVertexBuffer) g_pVertexBuffer->Release();
if (g_pVertexLayout) g_pVertexLayout->Release();
if (g_pVertexShader) g_pVertexShader->Release();
if (g_pPixelShader) g_pPixelShader->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()
{
g_pImmediateContext->ClearRenderTargetView(g_pRenderTargetView, Colors::Aquamarine);
// 三角形の描画
g_pImmediateContext->VSSetShader(g_pVertexShader, nullptr, 0);
g_pImmediateContext->PSSetShader(g_pPixelShader, nullptr, 0);
g_pImmediateContext->Draw(3, 0);
g_pSwapChain->Present(0, 0);
}
#pragma comment(lib,"d3dCompiler.lib")
#include <windows.h>
#include <d3d11_1.h>
#include <d3dcompiler.h>
#include <directxmath.h>
#include <directxcolors.h>
using namespace DirectX;
//--------------------------------------------------------------------------------------
// 構造体
//--------------------------------------------------------------------------------------
struct SimpleVertex
{
XMFLOAT3 Pos;
};
//--------------------------------------------------------------------------------------
// 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;
ID3D11VertexShader* g_pVertexShader = nullptr;
ID3D11PixelShader* g_pPixelShader = nullptr;
ID3D11InputLayout* g_pVertexLayout = nullptr;
ID3D11Buffer* g_pVertexBuffer = nullptr;
//--------------------------------------------------------------------------------------
// 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 };
while (WM_QUIT != msg.message)
{
if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
Render();
}
}
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"三角形の描画",
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;
g_pImmediateContext->OMSetRenderTargets(1, &g_pRenderTargetView, nullptr);
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"shader1.fx", "VS", "vs_4_0", &pVSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"FXファイルをコンパイルできません。FX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 },
};
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"shader1.fx", "PS", "ps_4_0", &pPSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"FXファイルをコンパイルできません。FX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(0.0f, 0.5f, 0.5f),
XMFLOAT3(0.5f, -0.5f, 0.5f),
XMFLOAT3(-0.5f, -0.5f, 0.5f),
};
D3D11_BUFFER_DESC bd;
ZeroMemory(&bd, sizeof(bd));
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(SimpleVertex) * 3;
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);
// プリミティブトポロジの設定
g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
return S_OK;
}
void CleanupDevice()
{
if (g_pImmediateContext) g_pImmediateContext->ClearState();
if (g_pVertexBuffer) g_pVertexBuffer->Release();
if (g_pVertexLayout) g_pVertexLayout->Release();
if (g_pVertexShader) g_pVertexShader->Release();
if (g_pPixelShader) g_pPixelShader->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()
{
g_pImmediateContext->ClearRenderTargetView(g_pRenderTargetView, Colors::Aquamarine);
// 三角形の描画
g_pImmediateContext->VSSetShader(g_pVertexShader, nullptr, 0);
g_pImmediateContext->PSSetShader(g_pPixelShader, nullptr, 0);
g_pImmediateContext->Draw(3, 0);
g_pSwapChain->Present(0, 0);
}
９．プロジェクトフォルダ内(WinMain.cppと同じフォルダ内)に、
「shader1.fx」という名前のテキストファイルを作成し、
それをダブルクリックしてVisual Studioで開き、
以下のとおり入力する。
//--------------------------------------------------------------------------------------
// バーテックスシェーダ
//--------------------------------------------------------------------------------------
float4 VS( float4 Pos : POSITION ) : SV_POSITION
{
return Pos;
}
//--------------------------------------------------------------------------------------
// ピクセルシェーダ
//--------------------------------------------------------------------------------------
float4 PS( float4 Pos : SV_POSITION ) : SV_Target
{
return float4( 0.0f, 0.0f, 1.0f, 1.0f ); // 青色, with Alpha = 1
}
// バーテックスシェーダ
//--------------------------------------------------------------------------------------
float4 VS( float4 Pos : POSITION ) : SV_POSITION
{
return Pos;
}
//--------------------------------------------------------------------------------------
// ピクセルシェーダ
//--------------------------------------------------------------------------------------
float4 PS( float4 Pos : SV_POSITION ) : SV_Target
{
return float4( 0.0f, 0.0f, 1.0f, 1.0f ); // 青色, with Alpha = 1
}
１０．shader1.fxのタブを右クリックし、
「shader1.fxの保存」でファイルを保存する。
１１．「ビルド」→「ソリューションのビルド」の順に選択する。
１２．「デバッグ」→「デバッグの開始」の順に選択すると、
ウィンドウが表示され、三角形が描画されていることを
確認できる。
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