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Open Source Computer Vision Library
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74 lines
2.0 KiB
74 lines
2.0 KiB
#include <windows.h> |
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#include <d3d11.h> |
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#pragma comment (lib, "d3d11.lib") |
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HINSTANCE g_hInst = NULL; |
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D3D_DRIVER_TYPE g_driverType = D3D_DRIVER_TYPE_NULL; |
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D3D_FEATURE_LEVEL g_featureLevel = D3D_FEATURE_LEVEL_11_0; |
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ID3D11Device* g_pd3dDevice = NULL; |
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ID3D11DeviceContext* g_pImmediateContext = NULL; |
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IDXGISwapChain* g_pSwapChain = NULL; |
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static HRESULT InitDevice() |
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{ |
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HRESULT hr = S_OK; |
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UINT width = 640; |
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UINT height = 480; |
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UINT createDeviceFlags = 0; |
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D3D_DRIVER_TYPE driverTypes[] = |
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{ |
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D3D_DRIVER_TYPE_HARDWARE, |
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D3D_DRIVER_TYPE_WARP, |
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D3D_DRIVER_TYPE_REFERENCE, |
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}; |
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UINT numDriverTypes = ARRAYSIZE(driverTypes); |
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D3D_FEATURE_LEVEL featureLevels[] = |
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{ |
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D3D_FEATURE_LEVEL_11_0, |
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D3D_FEATURE_LEVEL_10_1, |
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D3D_FEATURE_LEVEL_10_0, |
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}; |
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UINT numFeatureLevels = ARRAYSIZE(featureLevels); |
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DXGI_SWAP_CHAIN_DESC sd; |
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ZeroMemory( &sd, sizeof( sd ) ); |
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sd.BufferCount = 1; |
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sd.BufferDesc.Width = width; |
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sd.BufferDesc.Height = height; |
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#ifdef CHECK_NV12 |
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sd.BufferDesc.Format = DXGI_FORMAT_NV12; |
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#else |
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sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; |
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#endif |
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sd.BufferDesc.RefreshRate.Numerator = 60; |
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sd.BufferDesc.RefreshRate.Denominator = 1; |
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sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; |
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sd.OutputWindow = NULL; //g_hWnd; |
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sd.SampleDesc.Count = 1; |
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sd.SampleDesc.Quality = 0; |
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sd.Windowed = TRUE; |
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for (UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++) |
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{ |
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g_driverType = driverTypes[driverTypeIndex]; |
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hr = D3D11CreateDeviceAndSwapChain(NULL, g_driverType, NULL, createDeviceFlags, featureLevels, numFeatureLevels, |
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D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &g_featureLevel, &g_pImmediateContext); |
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if (SUCCEEDED(hr)) |
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break; |
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} |
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if (FAILED(hr)) |
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return hr; |
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return S_OK; |
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} |
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int main(int /*argc*/, char** /*argv*/) |
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{ |
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InitDevice(); |
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return 0; |
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}
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