HRESULT D3D11Context::CreateTheDevice() {
bool windowed = true;
#ifdef _DEBUG
UINT createDeviceFlags = D3D11_CREATE_DEVICE_DEBUG;
#else
UINT createDeviceFlags = 0;
#endif
static const D3D_DRIVER_TYPE driverTypes[] = {
D3D_DRIVER_TYPE_HARDWARE,
D3D_DRIVER_TYPE_WARP,
D3D_DRIVER_TYPE_REFERENCE,
};
const UINT numDriverTypes = ARRAYSIZE(driverTypes);
static const D3D_FEATURE_LEVEL featureLevels[] = {
D3D_FEATURE_LEVEL_12_1,
D3D_FEATURE_LEVEL_12_0,
D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3,
D3D_FEATURE_LEVEL_9_2,
D3D_FEATURE_LEVEL_9_1,
};
const UINT numFeatureLevels = ARRAYSIZE(featureLevels);
HRESULT hr = S_OK;
// Temporarily commenting out until we can dynamically load D3D11CreateDevice.
for (UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++) {
driverType_ = driverTypes[driverTypeIndex];
hr = ptr_D3D11CreateDevice(nullptr, driverType_, nullptr, createDeviceFlags, (D3D_FEATURE_LEVEL *)featureLevels, numFeatureLevels,
D3D11_SDK_VERSION, &device_, &featureLevel_, &context_);
if (hr == E_INVALIDARG) {
// DirectX 11.0 platforms will not recognize D3D_FEATURE_LEVEL_11_1 so we need to retry without it
hr = ptr_D3D11CreateDevice(nullptr, driverType_, nullptr, createDeviceFlags, (D3D_FEATURE_LEVEL *)&featureLevels[3], numFeatureLevels - 3,
D3D11_SDK_VERSION, &device_, &featureLevel_, &context_);
}
if (SUCCEEDED(hr))
break;
}
return hr;
}
HRESULT D3D11Context::CreateTheDevice(IDXGIAdapter *adapter) {
bool windowed = true;
#if defined(_DEBUG) && !defined(_M_ARM) && !defined(_M_ARM64)
UINT createDeviceFlags = D3D11_CREATE_DEVICE_DEBUG;
#else
UINT createDeviceFlags = 0;
#endif
static const D3D_DRIVER_TYPE driverTypes[] = {
D3D_DRIVER_TYPE_HARDWARE,
D3D_DRIVER_TYPE_WARP,
D3D_DRIVER_TYPE_REFERENCE,
};
const UINT numDriverTypes = ARRAYSIZE(driverTypes);
static const D3D_FEATURE_LEVEL featureLevels[] = {
D3D_FEATURE_LEVEL_12_1,
D3D_FEATURE_LEVEL_12_0,
D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3,
D3D_FEATURE_LEVEL_9_2,
D3D_FEATURE_LEVEL_9_1,
};
const UINT numFeatureLevels = ARRAYSIZE(featureLevels);
HRESULT hr = S_OK;
D3D_DRIVER_TYPE driverType = D3D_DRIVER_TYPE_UNKNOWN;
hr = ptr_D3D11CreateDevice(adapter, driverType, nullptr, createDeviceFlags, (D3D_FEATURE_LEVEL *)featureLevels, numFeatureLevels,
D3D11_SDK_VERSION, &device_, &featureLevel_, &context_);
if (hr == E_INVALIDARG) {
// DirectX 11.0 platforms will not recognize D3D_FEATURE_LEVEL_11_1 so we need to retry without it
hr = ptr_D3D11CreateDevice(adapter, driverType, nullptr, createDeviceFlags, (D3D_FEATURE_LEVEL *)&featureLevels[3], numFeatureLevels - 3,
D3D11_SDK_VERSION, &device_, &featureLevel_, &context_);
}
return hr;
}
