HRESULT DXApp::onResize(int width, int height) {
if (!_dxDev)
return S_FALSE;
// Release render target and depth-stencil view
ID3D11RenderTargetView *nullRTV = NULL;
_dxImmedDC->OMSetRenderTargets(1, &nullRTV, NULL);
if (_depthStencilView) {
_depthStencilView->Release();
_depthStencilView = NULL;
}
if (_renderTargetView) {
_renderTargetView->Release();
_renderTargetView = NULL;
}
// Resize swap chain
_swapChainDesc.BufferDesc.Width = width;
_swapChainDesc.BufferDesc.Height = height;
if (_swapChain)
_swapChain->ResizeBuffers(_swapChainDesc.BufferCount, _swapChainDesc.BufferDesc.Width,
_swapChainDesc.BufferDesc.Height, _swapChainDesc.BufferDesc.Format, _swapChainDesc.Flags);
// Re-create a depth-stencil view
_depthStencilDesc.Width = _swapChainDesc.BufferDesc.Width;
_depthStencilDesc.Height = _swapChainDesc.BufferDesc.Height;
createDepthStencilView();
// Re-create a render target
createRenderTargetView();
// Bind the views to the output
_dxImmedDC->OMSetRenderTargets(1, &_renderTargetView, _depthStencilView);
// Setup viewport
setupViewport();
return S_OK;
}
// Create Direct3D device and swap chain
HRESULT DXApp::initialiseDxDevice() {
// Get window size
RECT rc;
GetClientRect(_hWnd, &rc);
UINT width = rc.right - rc.left;
UINT height = rc.bottom - rc.top;
// Create D3D11 device and swap chain
UINT createDeviceFlags = 0;
#ifdef _DEBUG
//createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
ZeroMemory(&_swapChainDesc, sizeof(_swapChainDesc));
_swapChainDesc.BufferDesc.Width = width;
_swapChainDesc.BufferDesc.Height = height;
_swapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
_swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
_swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R16G16B16A16_FLOAT; // DXGI_FORMAT_R8G8B8A8_UNORM; //
_swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
_swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
// No multisampling
_swapChainDesc.SampleDesc.Count = 1;
_swapChainDesc.SampleDesc.Quality = 0;
_swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
_swapChainDesc.BufferCount = 1;
_swapChainDesc.OutputWindow = _hWnd;
_swapChainDesc.Windowed = true;
_swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
_swapChainDesc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
// Try to create a hardware accelerated device
const D3D_FEATURE_LEVEL featureLevel[] = { D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_0 };
HRESULT hr = D3D11CreateDeviceAndSwapChain(
NULL, // Primary graphics adapter
D3D_DRIVER_TYPE_HARDWARE, // Use graphics hardware
NULL, // Use hardware rasteriser
createDeviceFlags, // Debug flags
featureLevel, // Feature level
2, // Elements in the feature level
D3D11_SDK_VERSION, // SDK version
&_swapChainDesc, // Description of the swap chain
&_swapChain, // Returns the created swap chain
&_dxDev, // Returns the created device
NULL, // Returns feature level
&_dxImmedDC // Returns the Device Context
);
if (FAILED(hr)) {
// If failed, try to create a reference device
D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_REFERENCE, NULL, createDeviceFlags,
NULL, 0, D3D11_SDK_VERSION, &_swapChainDesc, &_swapChain, &_dxDev, NULL, &_dxImmedDC);
MessageBox(_hWnd, L"No DX10 hardware acceleration found.\nSwitching to REFERENCE driver (very slow).", L"Warning", MB_OK|MB_ICONWARNING);
}
// Create a depth - stencil view
_depthStencilDesc.Width = width;
_depthStencilDesc.Height = height;
_depthStencilDesc.MipLevels = 1;
_depthStencilDesc.ArraySize = 1;
_depthStencilDesc.Format = DXGI_FORMAT_D16_UNORM;
_depthStencilDesc.SampleDesc = _swapChainDesc.SampleDesc;
_depthStencilDesc.Usage = D3D11_USAGE_DEFAULT;
_depthStencilDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
_depthStencilDesc.CPUAccessFlags = 0;
_depthStencilDesc.MiscFlags = 0;
createDepthStencilView();
// Create a render target view
createRenderTargetView();
// Bind the views to the output
_dxImmedDC->OMSetRenderTargets(1, &_renderTargetView, _depthStencilView);
// Setup viewport
setupViewport();
return S_OK;
}
bool D3D11Context::startup (void* hwnd)
{
UINT flags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
#ifdef _DEBUG
flags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
D3D_FEATURE_LEVEL featureLevels[] =
{
D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0,
};
if (m_failed (::D3D11CreateDevice (nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, flags, featureLevels, numElementsInArray (featureLevels), D3D11_SDK_VERSION, device, &featureLevel, contextIM)))
{
if (m_failed (::D3D11CreateDevice (nullptr, D3D_DRIVER_TYPE_WARP, nullptr, flags, featureLevels, numElementsInArray (featureLevels), D3D11_SDK_VERSION, device, &featureLevel, contextIM)))
return false;
}
Hold<IDXGIDevice2> dxgiDevice;
if (m_failed (device.as (dxgiDevice)))
return false;
Hold<IDXGIAdapter> dxgiAdapter;
if (m_failed (dxgiDevice->GetAdapter (dxgiAdapter)))
return false;
Hold<IDXGIFactory2> dxgiFactory;
if (m_failed (dxgiAdapter->GetParent (__uuidof (IDXGIFactory2), dxgiFactory)))
return false;
DXGI_SWAP_CHAIN_DESC1 desc;
desc.Width = 0;
desc.Height = 0;
desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
desc.Stereo = false;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
desc.BufferCount = 2;
desc.Scaling = DXGI_SCALING_STRETCH; // DXGI_SCALING_NONE is not supported on Windows7
desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
desc.AlphaMode = DXGI_ALPHA_MODE_IGNORE;
desc.Flags = 0;
if (m_failed (dxgiFactory->CreateSwapChainForHwnd (device, (HWND)hwnd, &desc, nullptr, nullptr, swapchain)))
return false;
Hold<ID3D11Texture2D> backBuf;
if (m_failed (swapchain->GetBuffer (0, __uuidof (ID3D11Texture2D), backBuf)))
return false;
if (m_failed (device->CreateRenderTargetView (backBuf, nullptr, backBufRTView)))
return false;
RECT rect;
::GetClientRect ((HWND)hwnd, &rect);
if (m_isnull (depthBuf.set (createTexture2DRT (rect.right - rect.left, rect.bottom - rect.top, 1, DXGI_FORMAT_R32_TYPELESS, DXGI_FORMAT_D32_FLOAT))))
return false;
if (m_isnull (depthBufDSView.set (createDepthStencilView (depthBuf, 0, DXGI_FORMAT_D32_FLOAT))))
return false;
if (m_isnull (depthBufSRView.set (createShaderResourceView (depthBuf, DXGI_FORMAT_R32_FLOAT))))
return false;
// common sampler states
{
D3D11_SAMPLER_DESC _ = CD3D11_SAMPLER_DESC (D3D11_DEFAULT);
_.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
_.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
_.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
_.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
if (m_isnull (sampWrapLinear.set (createSamplerState (_))))
return false;
}
{
D3D11_SAMPLER_DESC _ = CD3D11_SAMPLER_DESC (D3D11_DEFAULT);
_.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
_.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
_.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
_.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
if (m_isnull (sampWrapPoint.set (createSamplerState (_))))
return false;
}
{
D3D11_SAMPLER_DESC _ = CD3D11_SAMPLER_DESC (D3D11_DEFAULT);
_.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
_.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP;
_.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP;
_.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP;
if (m_isnull (sampClampLinear.set (createSamplerState (_))))
return false;
}
{
D3D11_SAMPLER_DESC _ = CD3D11_SAMPLER_DESC (D3D11_DEFAULT);
_.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
_.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP;
_.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP;
_.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP;
if (m_isnull (sampClampPoint.set (createSamplerState (_))))
return false;
}
// common rasterizer state
{
D3D11_RASTERIZER_DESC _ = CD3D11_RASTERIZER_DESC (D3D11_DEFAULT);
_.CullMode = D3D11_CULL_NONE;
_.FrontCounterClockwise = FALSE;
if (m_isnull (rastCullNone.set (createRasterizerState (_))))
return false;
}
{
D3D11_RASTERIZER_DESC _ = CD3D11_RASTERIZER_DESC (D3D11_DEFAULT);
_.CullMode = D3D11_CULL_FRONT;
_.FrontCounterClockwise = FALSE;
if (m_isnull (rastCWCullFront.set (createRasterizerState (_))))
return false;
}
{
D3D11_RASTERIZER_DESC _ = CD3D11_RASTERIZER_DESC (D3D11_DEFAULT);
_.CullMode = D3D11_CULL_BACK;
_.FrontCounterClockwise = FALSE;
if (m_isnull (rastCWCullBack.set (createRasterizerState (_))))
return false;
}
{
D3D11_RASTERIZER_DESC _ = CD3D11_RASTERIZER_DESC (D3D11_DEFAULT);
_.CullMode = D3D11_CULL_FRONT;
_.FrontCounterClockwise = TRUE;
if (m_isnull (rastCCWCullFront.set (createRasterizerState (_))))
return false;
}
{
D3D11_RASTERIZER_DESC _ = CD3D11_RASTERIZER_DESC (D3D11_DEFAULT);
_.CullMode = D3D11_CULL_BACK;
_.FrontCounterClockwise = TRUE;
if (m_isnull (rastCCWCullBack.set (createRasterizerState (_))))
return false;
}
// common depth stencil state
{
D3D11_DEPTH_STENCIL_DESC _ = CD3D11_DEPTH_STENCIL_DESC (D3D11_DEFAULT);
_.DepthEnable = TRUE;
_.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
if (m_isnull (depthTestOnWriteOn.set (createDepthStencilState (_))))
return false;
}
{
D3D11_DEPTH_STENCIL_DESC _ = CD3D11_DEPTH_STENCIL_DESC (D3D11_DEFAULT);
_.DepthEnable = TRUE;
_.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ZERO;
if (m_isnull (depthTestOnWriteOff.set (createDepthStencilState (_))))
return false;
}
{
D3D11_DEPTH_STENCIL_DESC _ = CD3D11_DEPTH_STENCIL_DESC (D3D11_DEFAULT);
_.DepthEnable = FALSE;
_.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
if (m_isnull (depthTestOffWriteOn.set (createDepthStencilState (_))))
return false;
}
{
D3D11_DEPTH_STENCIL_DESC _ = CD3D11_DEPTH_STENCIL_DESC (D3D11_DEFAULT);
_.DepthEnable = FALSE;
_.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ZERO;
if (m_isnull (depthTestOffWriteOff.set (createDepthStencilState (_))))
return false;
}
return true;
}
