D3DContext::D3DContext(ApplicationWindow* targetWindow, const Description& description)
: mTargetWindow(targetWindow)
{
if (!CreateDeviceAndSwapChain(description))
throw std::runtime_error("Failed to create device and swap chain");
if (!CreateBackBufferView())
throw std::runtime_error("Failed to create a back buffer view");
if (!CreateDepthStencilBuffer(description.DepthBuffer))
throw std::runtime_error("Failed to create a depth/stencil buffer");
mDevice->OMSetRenderTargets(1, &mBackBufferView, mDepthStencilView);
SetViewports(description.Viewports);
SetActiveViewport(0);
}
HRESULT ACD3D::AddViewport(HWND hWnd, BOOL enableVSync)
{
HRESULT hr;
VSyncEnable = enableVSync;
Log("Add viewport");
//cria o retangulo para renderizacao
RECT rc;
GetClientRect( hWnd, &rc );
UINT width = rc.right - rc.left;
UINT height = rc.bottom - rc.top;
//adiciona os objetos necessarios para cada vp
ACD3DVpComponents* vpComponent = new ACD3DVpComponents();
//pega o factory
IDXGIFactory* pDXGIFactory = ACD3DTools::GetDXGIFactory();
#pragma region CREATE SWAP CHAIN
IDXGISwapChain* pSwapChain;
//define o rendertargetview, define o buffer e coloca como backbuffer em cada swapchain
//cria os swpachains para cada janela
DXGI_SWAP_CHAIN_DESC scd;
SecureZeroMemory(&scd, sizeof(scd));
if (VSyncEnable)
scd = ACD3DConfigurations::DefineSwapShain(hWnd, width, height, ACD3DGlobals::G_Numerator, ACD3DGlobals::G_Denomerator); //ser form o vsync enable ele sincroniza a renderizacao com o refreshrate da tela
else
scd = ACD3DConfigurations::DefineSwapShain(hWnd, width, height, 60, 1); //senao ele usa direto os valores padroes isso pode gerar alguns artefatos MF
hr = pDXGIFactory->CreateSwapChain(ACD3DGlobals::G_pD3dDevice, &scd, &pSwapChain);
if( FAILED( hr ) )
{
MessageBoxA(nullptr, "[ERROR] Creating SwapChain. AddViewport()", "Error", MB_OK | MB_ICONERROR);
return hr;
}
// Release the factory.
pDXGIFactory->Release();
pDXGIFactory = nullptr;
vpComponent->pSwapChain = pSwapChain;
#pragma endregion
#pragma region CREATE RENDERTARGETVIEW
//array de backbuffers, um pra cada janela
ID3D11Texture2D* pBackBuffer;
ID3D11RenderTargetView* pRenderTargetView;
hr = pSwapChain->GetBuffer( 0, __uuidof( ID3D11Texture2D ), ( LPVOID* )&pBackBuffer );
if( FAILED( hr ) )
{
MessageBoxA(nullptr, "[ERROR] Create buffer. AddViewport()", "Error", MB_OK | MB_ICONERROR);
return hr;
}
hr = ACD3DGlobals::G_pD3dDevice->CreateRenderTargetView( pBackBuffer, nullptr, &pRenderTargetView );
if( FAILED( hr ) )
{
MessageBoxA(nullptr, "[ERROR] Create render target. AddViewport()", "Error", MB_OK | MB_ICONERROR);
return hr;
}
vpComponent->pRenderTargetView = pRenderTargetView;
pBackBuffer->Release();
#pragma endregion
#pragma region CREATE DEPTHSTENCILVIEW
ID3D11Texture2D* pDepthStencil;
ID3D11DepthStencilView* pDepthStencilView;
//define o stencil view
hr = ACD3DConfigurations::DefineDepthStencilView(ACD3DGlobals::G_pD3dDevice,
&pDepthStencil, &pDepthStencilView,
width, height);
if( FAILED( hr ) )
{
MessageBoxA(nullptr, "[ERROR] Create depth stencil view. AddViewport()", "Error", MB_OK | MB_ICONERROR);
return hr;
}
vpComponent->pDepthStencilView = pDepthStencilView;
pDepthStencil->Release();
#pragma endregion
#pragma region CREATE VIEWPORT
D3D11_VIEWPORT vp;
ACD3DConfigurations::DefineViewPort(width, height, 0, 1, rc.left, rc.top, &vp);
vpComponent->Viewport = vp;
#pragma endregion
//inser o objeto no map
mpVpComponents.insert(std::pair<HWND, ACD3DVpComponents*>(hWnd, vpComponent));
//seta a viewport
ACD3DGlobals::G_pContext->RSSetViewports( 1, &vp );
//seta o render target e o depthstencil
ACD3DGlobals::G_pContext->OMSetRenderTargets( 1, &pRenderTargetView, pDepthStencilView );
SetActiveViewport(hWnd);
SetActiveRenderingViewport(hWnd);
return AC_OK;
};
