/// <summary>
/// Tries to check or create a warp <see cref="ID3D12Device"/> object.
/// </summary>
/// <param name="d3D12Device">A pointer to the <see cref="ID3D12Device"/> object to create, or <see langword="null"/>.</param>
/// <param name="dxgiAdapter">A pointer to the <see cref="IDXGIAdapter"/> object used to create <paramref name="d3D12Device"/>, or <see langword="null"/>.</param>
/// <param name="dxgiDescription1">A pointer to the <see cref="DXGI_ADAPTER_DESC1"/> value for the device found.</param>
/// <returns>Whether a warp device was created successfully.</returns>
private static unsafe bool TryGetWarpDevice(ID3D12Device **d3D12Device, IDXGIAdapter **dxgiAdapter, DXGI_ADAPTER_DESC1 *dxgiDescription1)
{
using ComPtr <IDXGIFactory4> dxgiFactory4 = default;
EnableDebugMode();
FX.CreateDXGIFactory2(IDXGIFactoryCreationFlags, FX.__uuidof <IDXGIFactory4>(), dxgiFactory4.GetVoidAddressOf()).Assert();
using ComPtr <IDXGIAdapter1> dxgiAdapter1 = default;
dxgiFactory4.Get()->EnumWarpAdapter(FX.__uuidof <IDXGIAdapter1>(), dxgiAdapter1.GetVoidAddressOf()).Assert();
dxgiAdapter1.Get()->GetDesc1(dxgiDescription1).Assert();
HRESULT createDeviceResult = FX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
FX.__uuidof <ID3D12Device>(),
(void **)d3D12Device);
dxgiAdapter1.CopyTo(dxgiAdapter);
return(FX.SUCCEEDED(createDeviceResult));
}
public int CreateSoftwareAdapter([NativeTypeName("HMODULE")] IntPtr Module, [NativeTypeName("IDXGIAdapter **")] IDXGIAdapter **ppAdapter)
{
return(((delegate * unmanaged <IDXGIFactory1 *, IntPtr, IDXGIAdapter **, int>)(lpVtbl[11]))((IDXGIFactory1 *)Unsafe.AsPointer(ref this), Module, ppAdapter));
}
public int EnumAdapters([NativeTypeName("UINT")] uint Adapter, [NativeTypeName("IDXGIAdapter **")] IDXGIAdapter **ppAdapter)
{
return(((delegate * unmanaged <IDXGIFactory1 *, uint, IDXGIAdapter **, int>)(lpVtbl[7]))((IDXGIFactory1 *)Unsafe.AsPointer(ref this), Adapter, ppAdapter));
}
public HRESULT GetAdapter(IDXGIAdapter **pAdapter)
{
return(((delegate * unmanaged <IDXGIDevice4 *, IDXGIAdapter **, int>)(lpVtbl[7]))((IDXGIDevice4 *)Unsafe.AsPointer(ref this), pAdapter));
}
public HRESULT EnumAdapters(uint Adapter, IDXGIAdapter **ppAdapter)
{
return(((delegate * unmanaged <IDXGIFactory4 *, uint, IDXGIAdapter **, int>)(lpVtbl[7]))((IDXGIFactory4 *)Unsafe.AsPointer(ref this), Adapter, ppAdapter));
}
public HRESULT CreateSoftwareAdapter(HMODULE Module, IDXGIAdapter **ppAdapter)
{
return(((delegate * unmanaged <IDXGIFactory4 *, HMODULE, IDXGIAdapter **, int>)(lpVtbl[11]))((IDXGIFactory4 *)Unsafe.AsPointer(ref this), Module, ppAdapter));
}
/// <summary>
/// Tries to check or create a default <see cref="ID3D12Device"/> object.
/// </summary>
/// <param name="d3D12Device">A pointer to the <see cref="ID3D12Device"/> object to create, or <see langword="null"/>.</param>
/// <param name="dxgiAdapter">A pointer to the <see cref="IDXGIAdapter"/> object used to create <paramref name="d3D12Device"/>, or <see langword="null"/>.</param>
/// <param name="dxgiDescription1">A pointer to the <see cref="DXGI_ADAPTER_DESC1"/> value for the device found.</param>
/// <returns>Whether a default device was found with the requested feature level.</returns>
private static unsafe bool TryGetDefaultDevice(ID3D12Device **d3D12Device, IDXGIAdapter **dxgiAdapter, DXGI_ADAPTER_DESC1 *dxgiDescription1)
{
using ComPtr <IDXGIFactory4> dxgiFactory4 = default;
EnableDebugMode();
FX.CreateDXGIFactory2(IDXGIFactoryCreationFlags, FX.__uuidof <IDXGIFactory4>(), dxgiFactory4.GetVoidAddressOf()).Assert();
uint i = 0;
while (true)
{
using ComPtr <IDXGIAdapter1> dxgiAdapter1 = default;
HRESULT enumAdapters1Result = dxgiFactory4.Get()->EnumAdapters1(i++, dxgiAdapter1.GetAddressOf());
if (enumAdapters1Result == FX.DXGI_ERROR_NOT_FOUND)
{
return(false);
}
enumAdapters1Result.Assert();
dxgiAdapter1.Get()->GetDesc1(dxgiDescription1).Assert();
if (dxgiDescription1->VendorId == MicrosoftVendorId &&
dxgiDescription1->DeviceId == WarpDeviceId)
{
continue;
}
// Explicit paths for when a device is being retrieved or not, with special handling
// for the additional check that is required for the SM6 level. This can't be checked
// without creating a device first, so the path for when the target device pointer is
// null is useful to do an initial filtering using D3D12CreateDevice to avoid creating
// a device for adapters that would've failed at the FL11 check already.
if (d3D12Device == null)
{
HRESULT createDeviceResult = FX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
FX.__uuidof <ID3D12Device>(),
null);
if (FX.SUCCEEDED(createDeviceResult))
{
using ComPtr <ID3D12Device> d3D12DeviceCandidate = default;
createDeviceResult = FX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
FX.__uuidof <ID3D12Device>(),
d3D12DeviceCandidate.GetVoidAddressOf());
if (FX.SUCCEEDED(createDeviceResult) &&
d3D12DeviceCandidate.Get()->IsShaderModelSupported(D3D_SHADER_MODEL_6_0))
{
return(true);
}
}
}
else
{
using ComPtr <ID3D12Device> d3D12DeviceCandidate = default;
HRESULT createDeviceResult = FX.D3D12CreateDevice(
dxgiAdapter1.AsIUnknown().Get(),
D3D_FEATURE_LEVEL_11_0,
FX.__uuidof <ID3D12Device>(),
d3D12DeviceCandidate.GetVoidAddressOf());
if (FX.SUCCEEDED(createDeviceResult) &&
d3D12DeviceCandidate.Get()->IsShaderModelSupported(D3D_SHADER_MODEL_6_0))
{
d3D12DeviceCandidate.CopyTo(d3D12Device);
dxgiAdapter1.CopyTo(dxgiAdapter);
return(true);
}
}
}
}
public int GetAdapter([NativeTypeName("IDXGIAdapter **")] IDXGIAdapter **pAdapter)
{
return(((delegate * unmanaged <IDXGIDevice4 *, IDXGIAdapter **, int>)(lpVtbl[7]))((IDXGIDevice4 *)Unsafe.AsPointer(ref this), pAdapter));
}
