/// <inheritdoc/>
public bool MoveNext()
{
if (!this.isInitialized)
{
this.isInitialized = true;
fixed(IDXGIFactory6 **dxgiFactory6 = this.dxgiFactory6)
{
CreateDXGIFactory6(dxgiFactory6);
}
}
if (this.isCompleted)
{
return(false);
}
while (true)
{
using ComPtr <IDXGIAdapter1> dxgiAdapter1 = default;
HRESULT enumAdapters1Result = this.dxgiFactory6.Get()->EnumAdapterByGpuPreference(
this.index,
DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE,
Windows.__uuidof <IDXGIAdapter1>(),
dxgiAdapter1.GetVoidAddressOf());
if (enumAdapters1Result == DXGI.DXGI_ERROR_NOT_FOUND)
{
this.dxgiFactory6.Get()->EnumWarpAdapter(Windows.__uuidof <IDXGIAdapter1>(), dxgiAdapter1.GetVoidAddressOf()).Assert();
DXGI_ADAPTER_DESC1 dxgiDescription1;
dxgiAdapter1.Get()->GetDesc1(&dxgiDescription1).Assert();
HRESULT createDeviceResult = DirectX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
Windows.__uuidof <ID3D12Device>(),
null);
if (Windows.SUCCEEDED(createDeviceResult) &&
this.predicate?.Invoke(new GraphicsDeviceInfo(&dxgiDescription1)) != false)
{
using ComPtr <ID3D12Device> d3D12Device = default;
DirectX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
Windows.__uuidof <ID3D12Device>(),
d3D12Device.GetVoidAddressOf()).Assert();
this.graphicsDevice = GetOrCreateDevice(d3D12Device.Get(), (IDXGIAdapter *)dxgiAdapter1.Get(), &dxgiDescription1);
this.isCompleted = true;
return(true);
}
return(false);
}
else
{
enumAdapters1Result.Assert();
this.index++;
DXGI_ADAPTER_DESC1 dxgiDescription1;
dxgiAdapter1.Get()->GetDesc1(&dxgiDescription1).Assert();
if (dxgiDescription1.VendorId == MicrosoftVendorId &&
dxgiDescription1.DeviceId == WarpDeviceId)
{
continue;
}
HRESULT createDeviceResult = DirectX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
Windows.__uuidof <ID3D12Device>(),
null);
if (Windows.SUCCEEDED(createDeviceResult) &&
this.predicate?.Invoke(new GraphicsDeviceInfo(&dxgiDescription1)) != false)
{
using ComPtr <ID3D12Device> d3D12Device = default;
DirectX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
Windows.__uuidof <ID3D12Device>(),
d3D12Device.GetVoidAddressOf()).Assert();
if (d3D12Device.Get()->IsShaderModelSupported(D3D_SHADER_MODEL_6_0))
{
this.graphicsDevice = GetOrCreateDevice(d3D12Device.Get(), (IDXGIAdapter *)dxgiAdapter1.Get(), &dxgiDescription1);
return(true);
}
}
}
}
}
