public static unsafe Luid GetDefaultDeviceLuid()
{
DXGI_ADAPTER_DESC1 dxgiDescription1;
_ = TryGetDefaultDevice(null, null, &dxgiDescription1) || TryGetWarpDevice(null, null, &dxgiDescription1);
return(Luid.FromLUID(dxgiDescription1.AdapterLuid));
}
/// <summary>
/// Creates a new <see cref="GraphicsDeviceInfo"/> instance with the specified parameters.
/// </summary>
/// <param name="dxgiDescription1">The available info for the associated device.</param>
internal unsafe GraphicsDeviceInfo(DXGI_ADAPTER_DESC1 *dxgiDescription1)
{
Luid = Luid.FromLUID(dxgiDescription1->AdapterLuid);
Name = new string((char *)dxgiDescription1->Description);
DedicatedMemorySize = dxgiDescription1->DedicatedVideoMemory;
SharedMemorySize = dxgiDescription1->SharedSystemMemory;
IsHardwareAccelerated = (dxgiDescription1->Flags & (uint)DXGI_ADAPTER_FLAG_SOFTWARE) == 0;
}
/// <summary>
/// Creates a new <see cref="GraphicsDevice"/> instance for the input <see cref="ID3D12Device"/>.
/// </summary>
/// <param name="d3D12Device">The <see cref="ID3D12Device"/> to use for the new <see cref="GraphicsDevice"/> instance.</param>
/// <param name="dxgiAdapter">The <see cref="IDXGIAdapter"/> that <paramref name="d3D12Device"/> was created from.</param>
/// <param name="dxgiDescription1">The available info for the new <see cref="GraphicsDevice"/> instance.</param>
internal GraphicsDevice(ID3D12Device *d3D12Device, IDXGIAdapter *dxgiAdapter, DXGI_ADAPTER_DESC1 *dxgiDescription1)
{
this.d3D12Device = new ComPtr <ID3D12Device>(d3D12Device);
this.d3D12ComputeCommandQueue = d3D12Device->CreateCommandQueue(D3D12_COMMAND_LIST_TYPE_COMPUTE);
this.d3D12CopyCommandQueue = d3D12Device->CreateCommandQueue(D3D12_COMMAND_LIST_TYPE_COPY);
this.d3D12ComputeFence = d3D12Device->CreateFence();
this.d3D12CopyFence = d3D12Device->CreateFence();
this.shaderResourceViewDescriptorAllocator = new ID3D12DescriptorHandleAllocator(d3D12Device);
this.computeCommandListPool = new ID3D12CommandListPool(D3D12_COMMAND_LIST_TYPE_COMPUTE);
this.copyCommandListPool = new ID3D12CommandListPool(D3D12_COMMAND_LIST_TYPE_COPY);
Luid = Luid.FromLUID(dxgiDescription1->AdapterLuid);
Name = new string((char *)dxgiDescription1->Description);
DedicatedMemorySize = dxgiDescription1->DedicatedVideoMemory;
SharedMemorySize = dxgiDescription1->SharedSystemMemory;
IsHardwareAccelerated = (dxgiDescription1->Flags & (uint)DXGI_ADAPTER_FLAG_SOFTWARE) == 0;
var d3D12Options1Data = d3D12Device->CheckFeatureSupport <D3D12_FEATURE_DATA_D3D12_OPTIONS1>(D3D12_FEATURE_D3D12_OPTIONS1);
ComputeUnits = d3D12Options1Data.TotalLaneCount;
WavefrontSize = d3D12Options1Data.WaveLaneCountMin;
var d3D12Architecture1Data = d3D12Device->CheckFeatureSupport <D3D12_FEATURE_DATA_ARCHITECTURE1>(D3D12_FEATURE_ARCHITECTURE1);
IsCacheCoherentUMA = d3D12Architecture1Data.CacheCoherentUMA != 0;
#if NET6_0_OR_GREATER
this.allocator = d3D12Device->CreateAllocator(dxgiAdapter);
if (IsCacheCoherentUMA)
{
this.pool = this.allocator.Get()->CreatePoolForCacheCoherentUMA();
}
#endif
}
