DirectX 초기 생성, Swapchain, Reder view 생성, DepthStencil view 생성

DirectX 3D device 생성.

 

물리적인 VGA 하드웨어에 대한 소프트웨어 제어기.

	ID3D11Device* md3dDevice;
	ID3D11DeviceContext* md3dImmediateContext;
	IDXGISwapChain* mSwapChain;
	ID3D11Texture2D* mDepthStencilBuffer;
	ID3D11RenderTargetView* mRenderTargetView;
	ID3D11DepthStencilView* mDepthStencilView;
	D3D11_VIEWPORT mScreenViewport;

	HRESULT hr = D3D11CreateDevice(
			0,                 // default adapter
			md3dDriverType,
			0,                 // no software device
			createDeviceFlags, 
			0, 0,              // default feature level array
			D3D11_SDK_VERSION,
			&md3dDevice,
			&featureLevel,
			&md3dImmediateContext);

Swapchain 설정

                DXGI_SWAP_CHAIN_DESC sd;
	sd.BufferDesc.Width  = mClientWidth;
	sd.BufferDesc.Height = mClientHeight;
	sd.BufferDesc.RefreshRate.Numerator = 60;
	sd.BufferDesc.RefreshRate.Denominator = 1;
	sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
	sd.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
	sd.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;


	sd.BufferUsage  = DXGI_USAGE_RENDER_TARGET_OUTPUT;
	sd.BufferCount  = 1;
	sd.OutputWindow = mhMainWnd;
	sd.Windowed     = true;
	sd.SwapEffect   = DXGI_SWAP_EFFECT_DISCARD;
	sd.Flags        = 0;

	IDXGIDevice* dxgiDevice = 0;
	HR(md3dDevice->QueryInterface(__uuidof(IDXGIDevice), (void**)&dxgiDevice));
	      
	IDXGIAdapter* dxgiAdapter = 0;
	HR(dxgiDevice->GetParent(__uuidof(IDXGIAdapter), (void**)&dxgiAdapter));

	IDXGIFactory* dxgiFactory = 0;
	HR(dxgiAdapter->GetParent(__uuidof(IDXGIFactory), (void**)&dxgiFactory));
	
	HR(dxgiFactory->CreateSwapChain(md3dDevice, &sd, &mSwapChain));

Render view, Depth Stencil view 설정

	ReleaseCOM(mRenderTargetView);
	ReleaseCOM(mDepthStencilView);
	ReleaseCOM(mDepthStencilBuffer);

	ID3D11Texture2D* backBuffer;
	HR(mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), reinterpret_cast(&backBuffer)));
	HR(md3dDevice->CreateRenderTargetView(backBuffer, 0, &mRenderTargetView));
	ReleaseCOM(backBuffer);

                D3D11_TEXTURE2D_DESC depthStencilDesc;
	
	depthStencilDesc.Width     = mClientWidth;
	depthStencilDesc.Height    = mClientHeight;
	depthStencilDesc.MipLevels = 1;
	depthStencilDesc.ArraySize = 1;
	depthStencilDesc.Format    = DXGI_FORMAT_D24_UNORM_S8_UINT;

	depthStencilDesc.Usage          = D3D11_USAGE_DEFAULT;
	depthStencilDesc.BindFlags      = D3D11_BIND_DEPTH_STENCIL;
	depthStencilDesc.CPUAccessFlags = 0; 
	depthStencilDesc.MiscFlags      = 0;

	HR(md3dDevice->CreateTexture2D(&depthStencilDesc, 0, &mDepthStencilBuffer));
	HR(md3dDevice->CreateDepthStencilView(mDepthStencilBuffer, 0, &mDepthStencilView));

	// Bind the render target view and depth/stencil view to the pipeline.

	md3dImmediateContext->OMSetRenderTargets(1, &mRenderTargetView, mDepthStencilView);
	

	// Set the viewport transform.

	mScreenViewport.TopLeftX = 0;
	mScreenViewport.TopLeftY = 0;
	mScreenViewport.Width    = static_cast(mClientWidth);
	mScreenViewport.Height   = static_cast(mClientHeight);
	mScreenViewport.MinDepth = 0.0f;
	mScreenViewport.MaxDepth = 1.0f;

	md3dImmediateContext->RSSetViewports(1, &mScreenViewport);