前回はDirectXの初期化だけでしたが、今回はいよいよDirect2Dを使用していきます。
サンプルコードはこちらを参考。
http://dioltista.blogspot.com/2019/04/c-directx11-direct2ddirectwrite_27.html
前回作成したWindowにテキストを表示します。
※main関数は大して変更していないので省略。
#pragma once
#pragma comment(lib,"d3d11.lib")
#pragma comment(lib,"d2d1.lib")
#pragma comment(lib,"dwrite.lib")
#include <d3d11_1.h>
#include <directxcolors.h>
#include <d2d1.h>
#include <dwrite.h>
class DirectX11
{
public:
DirectX11();
~DirectX11();
HRESULT InitDevice();
void Render();
private:
ID3D11Device* pd3dDevice;
ID3D11Device1* pd3dDevice1;
ID3D11DeviceContext* pImmediateContext;
ID3D11DeviceContext1* pImmediateContext1;
IDXGISwapChain* pSwapChain;
IDXGISwapChain1* pSwapChain1;
ID3D11RenderTargetView* pRenderTargetView;
ID2D1Factory* pD2DFactory;
IDWriteFactory* pDWriteFactory;
IDWriteTextFormat* pTextFormat;
ID2D1RenderTarget* pRT;
ID2D1SolidColorBrush* pSolidBrush;
IDXGISurface* pDXGISurface;
};
#include "Main.h"
#include "DirectX.h"
DirectX11::DirectX11()
{
pd3dDevice = nullptr;
pd3dDevice1 = nullptr;
pImmediateContext = nullptr;
pImmediateContext1 = nullptr;
pSwapChain = nullptr;
pSwapChain1 = nullptr;
pRenderTargetView = nullptr;
pD2DFactory = nullptr;
pDWriteFactory = nullptr;
pTextFormat = nullptr;
pRT = nullptr;
pSolidBrush = nullptr;
pDXGISurface = nullptr;
}
DirectX11::~DirectX11()
{
if (pDXGISurface) pDXGISurface->Release();
if (pSolidBrush) pSolidBrush->Release();
if (pRT) pRT->Release();
if (pTextFormat) pTextFormat->Release();
if (pDWriteFactory) pDWriteFactory->Release();
if (pD2DFactory) pD2DFactory->Release();
if (pImmediateContext) pImmediateContext->ClearState();
if (pRenderTargetView) pRenderTargetView->Release();
if (pSwapChain1) pSwapChain1->Release();
if (pSwapChain) pSwapChain->Release();
if (pImmediateContext1) pImmediateContext1->Release();
if (pImmediateContext) pImmediateContext->Release();
if (pd3dDevice1) pd3dDevice1->Release();
if (pd3dDevice) pd3dDevice->Release();
}
HRESULT DirectX11::InitDevice()
{
HRESULT hr = S_OK;
RECT rc;
GetClientRect(Window::GethWnd(), &rc);
UINT width = rc.right - rc.left;
UINT height = rc.bottom - rc.top;
UINT createDeviceFlags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
#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);
D3D_DRIVER_TYPE g_driverType = D3D_DRIVER_TYPE_NULL;
D3D_FEATURE_LEVEL g_featureLevel = D3D_FEATURE_LEVEL_11_0;
for (UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++)
{
g_driverType = driverTypes[driverTypeIndex];
hr = D3D11CreateDevice(nullptr, g_driverType, nullptr, createDeviceFlags, featureLevels, numFeatureLevels,
D3D11_SDK_VERSION, &pd3dDevice, &g_featureLevel, &pImmediateContext);
if (hr == E_INVALIDARG)
{
hr = D3D11CreateDevice(nullptr, g_driverType, nullptr, createDeviceFlags, &featureLevels[1], numFeatureLevels - 1,
D3D11_SDK_VERSION, &pd3dDevice, &g_featureLevel, &pImmediateContext);
}
if (SUCCEEDED(hr))
break;
}
if (FAILED(hr))
return hr;
IDXGIFactory1* dxgiFactory = nullptr;
{
IDXGIDevice* dxgiDevice = nullptr;
hr = 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 = pd3dDevice->QueryInterface(__uuidof(ID3D11Device1), reinterpret_cast<void**>(&pd3dDevice1));
if (SUCCEEDED(hr))
{
(void)pImmediateContext->QueryInterface(__uuidof(ID3D11DeviceContext1), reinterpret_cast<void**>(&pImmediateContext1));
}
DXGI_SWAP_CHAIN_DESC1 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(pd3dDevice, Window::GethWnd(), &sd, nullptr, nullptr, &pSwapChain1);
if (SUCCEEDED(hr))
{
hr = pSwapChain1->QueryInterface(__uuidof(IDXGISwapChain), reinterpret_cast<void**>(&pSwapChain));
}
dxgiFactory2->Release();
}
else
{
DXGI_SWAP_CHAIN_DESC 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 = Window::GethWnd();
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.Windowed = TRUE;
hr = dxgiFactory->CreateSwapChain(pd3dDevice, &sd, &pSwapChain);
}
dxgiFactory->MakeWindowAssociation(Window::GethWnd(), DXGI_MWA_NO_ALT_ENTER);
dxgiFactory->Release();
if (FAILED(hr))
return hr;
ID3D11Texture2D* pBackBuffer = nullptr;
hr = pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), reinterpret_cast<void**>(&pBackBuffer));
if (FAILED(hr))
return hr;
hr = pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &pRenderTargetView);
pBackBuffer->Release();
if (FAILED(hr))
return hr;
pImmediateContext->OMSetRenderTargets(1, &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;
pImmediateContext->RSSetViewports(1, &vp);
// Direct2D,DirectWriteの初期化
hr = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, &pD2DFactory);
if (FAILED(hr))
return hr;
hr = pSwapChain->GetBuffer(0, IID_PPV_ARGS(&pDXGISurface));
if (FAILED(hr))
return hr;
FLOAT dpiX;
FLOAT dpiY;
//pD2DFactory->GetDesktopDpi(&dpiX, &dpiY);★
dpiX = (FLOAT)GetDpiForWindow(GetDesktopWindow());
dpiY = dpiX;
D2D1_RENDER_TARGET_PROPERTIES props = D2D1::RenderTargetProperties(D2D1_RENDER_TARGET_TYPE_DEFAULT, D2D1::PixelFormat(DXGI_FORMAT_UNKNOWN, D2D1_ALPHA_MODE_PREMULTIPLIED), dpiX, dpiY);
hr = pD2DFactory->CreateDxgiSurfaceRenderTarget(pDXGISurface, &props, &pRT);
if (FAILED(hr))
return hr;
hr = DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory), reinterpret_cast<IUnknown**>(&pDWriteFactory));
if (FAILED(hr))
return hr;
//関数CreateTextFormat()
//第1引数：フォント名（L"メイリオ", L"Arial", L"Meiryo UI"等）
//第2引数：フォントコレクション（nullptr）
//第3引数：フォントの太さ（DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_WEIGHT_BOLD等）
//第4引数：フォントスタイル（DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STYLE_OBLIQUE, DWRITE_FONT_STYLE_ITALIC）
//第5引数：フォントの幅（DWRITE_FONT_STRETCH_NORMAL,DWRITE_FONT_STRETCH_EXTRA_EXPANDED等）
//第6引数：フォントサイズ（20, 30等）
//第7引数：ロケール名（L""）
//第8引数：テキストフォーマット（&g_pTextFormat）
hr = pDWriteFactory->CreateTextFormat(L"メイリオ", nullptr, DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, 20, L"", &pTextFormat);
if (FAILED(hr))
return hr;
//関数SetTextAlignment()
//第1引数：テキストの配置（DWRITE_TEXT_ALIGNMENT_LEADING：前, DWRITE_TEXT_ALIGNMENT_TRAILING：後, DWRITE_TEXT_ALIGNMENT_CENTER：中央）
hr = pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING);
if (FAILED(hr))
return hr;
//関数CreateSolidColorBrush()
//第1引数：フォント色（D2D1::ColorF(D2D1::ColorF::Black)：黒, D2D1::ColorF(D2D1::ColorF(0.0f, 0.2f, 0.9f, 1.0f))：RGBA指定）
hr = pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &pSolidBrush);
if (FAILED(hr))
return hr;
return S_OK;
}
void DirectX11::Render()
{
pImmediateContext->ClearRenderTargetView(pRenderTargetView, DirectX::Colors::Aquamarine);
// テキストの描画
WCHAR wcText1[] = L" 親譲りの無鉄砲で小供の時から損ばかりしている。小学校に居る時分学校の二階から";
WCHAR wcText2[] = L"飛び降りて一週間ほど腰を抜かした事がある。なぜそんな無闇をしたと聞く人があるか";
WCHAR wcText3[] = L"も知れぬ。別段深い理由でもない。新築の二階から首を出していたら、同級生の一人が";
WCHAR wcText4[] = L"冗談に、いくら威張っても、そこから飛び降りる事は出来まい。弱虫やーい。と囃した";
WCHAR wcText5[] = L"からである。小使に負ぶさって帰って来た時、おやじが大きな眼をして二階ぐらいから";
WCHAR wcText6[] = L"飛び降りて腰を抜かす奴があるかと云ったから、この次は抜かさずに飛んで見せますと";
WCHAR wcText7[] = L"答えた。";
pRT->BeginDraw();
pSolidBrush->SetColor(D2D1::ColorF(D2D1::ColorF::Blue));//フォント色変更：青
pRT->DrawText(wcText1, ARRAYSIZE(wcText1) - 1, pTextFormat, D2D1::RectF(0, 0, 800, 20), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pRT->DrawText(wcText2, ARRAYSIZE(wcText2) - 1, pTextFormat, D2D1::RectF(0, 20, 800, 40), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pSolidBrush->SetOpacity(0.7f);//フォントの透明度変更：70％
pRT->DrawText(wcText3, ARRAYSIZE(wcText3) - 1, pTextFormat, D2D1::RectF(0, 40, 800, 60), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pSolidBrush->SetColor(D2D1::ColorF(D2D1::ColorF::Black));//フォント色変更：黒
pRT->DrawText(wcText4, ARRAYSIZE(wcText4) - 1, pTextFormat, D2D1::RectF(0, 60, 800, 80), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pRT->DrawText(wcText5, ARRAYSIZE(wcText5) - 1, pTextFormat, D2D1::RectF(0, 80, 800, 100), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pSolidBrush->SetOpacity(1.0f);//フォントの透明度変更：100％
pRT->DrawText(wcText6, ARRAYSIZE(wcText6) - 1, pTextFormat, D2D1::RectF(0, 100, 800, 120), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pRT->DrawText(wcText7, ARRAYSIZE(wcText7) - 1, pTextFormat, D2D1::RectF(0, 120, 800, 140), pSolidBrush, D2D1_DRAW_TEXT_OPTIONS_NONE);
pRT->EndDraw();
pSwapChain->Present(0, 0);
}
サンプルと違うのは★の箇所。
GetDesktopDpi()を使用するのは非推奨らしく、ビルドエラーとなります。
そこで参照したのは以下のページ。
dpiX = (FLOAT)GetDpiForWindow(GetDesktopWindow());
dpiY = dpiX;に置き換えることでビルドが通ります。
