public static void Main()
{
using ID3D12Device device = D3D12CreateDevice <ID3D12Device>(null, FeatureLevel.Level_12_1);
using IDStorageFactory factory = DStorageGetFactory <IDStorageFactory>();
string fileToLoad = "Test.txt";
Result result = factory.OpenFile(fileToLoad, out IDStorageFile? file);
if (result.Failure)
{
Console.WriteLine($"The file '{fileToLoad}' could not be opened. HRESULT={result}");
//ShowHelpText();
return;
}
ByHandleFileInformation info = file !.FileInformation;
uint fileSize = info.FileSizeLow;
// Create a DirectStorage queue which will be used to load data into a buffer on the GPU.
QueueDesc queueDesc = new QueueDesc
{
Capacity = MaxQueueCapacity,
Priority = Priority.Normal,
SourceType = RequestSourceType.File,
Device = device
};
using IDStorageQueue queue = factory.CreateQueue(queueDesc);
// Create the ID3D12Resource buffer which will be populated with the file's contents
HeapProperties bufferHeapProps = new HeapProperties(HeapType.Default);
ResourceDescription bufferDesc = ResourceDescription.Buffer(fileSize);
using ID3D12Resource bufferResource = device.CreateCommittedResource(
bufferHeapProps,
HeapFlags.None,
bufferDesc,
ResourceStates.Common
);
// Enqueue a request to read the file contents into a destination D3D12 buffer resource.
// Note: The example request below is performing a single read of the entire file contents.
Request request = new Request();
request.Options.SourceType = RequestSourceType.File;
request.Options.DestinationType = RequestDestinationType.Buffer;
request.Source.File.Source = file;
request.Source.File.Offset = 0;
request.Source.File.Size = fileSize;
request.UncompressedSize = fileSize;
request.Destination.Buffer.Resource = bufferResource;
request.Destination.Buffer.Offset = 0;
request.Destination.Buffer.Size = request.Source.File.Size;
queue.EnqueueRequest(request);
// Configure a fence to be signaled when the request is completed
using ID3D12Fence fence = device.CreateFence();
using AutoResetEvent fenceEvent = new AutoResetEvent(false);
ulong fenceValue = 1;
fence.SetEventOnCompletion(fenceValue, fenceEvent).CheckError();
queue.EnqueueSignal(fence, fenceValue);
// Tell DirectStorage to start executing all queued items.
queue.Submit();
// Wait for the submitted work to complete
Console.WriteLine("Waiting for the DirectStorage request to complete...");
fenceEvent.WaitOne();
// Check the status array for errors.
// If an error was detected the first failure record
// can be retrieved to get more details.
ErrorRecord errorRecord = queue.RetrieveErrorRecord();
if (errorRecord.FirstFailure.HResult.Failure)
{
//
// errorRecord.FailureCount - The number of failed requests in the queue since the last
// RetrieveErrorRecord call.
// errorRecord.FirstFailure - Detailed record about the first failed command in the enqueue order.
//
Console.WriteLine($"The DirectStorage request failed! HRESULT={errorRecord.FirstFailure.HResult}");
}
else
{
Console.WriteLine("The DirectStorage request completed successfully!");
}
}
public uint SubmitCommandList(ID3D12GraphicsCommandList4 pCmdList, ID3D12CommandQueue pCmdQueue, ID3D12Fence pFence, uint fenceValue)
{
pCmdList.Close();
pCmdQueue.ExecuteCommandList(pCmdList);
fenceValue++;
pCmdQueue.Signal(pFence, fenceValue);
return(fenceValue);
}
/// <summary>
/// Asynchronously makes objects resident for the device.
/// </summary>
public Result EnqueueMakeResident(ResidencyFlags flags, ID3D12Pageable[] objects, ID3D12Fence fenceToSignal, ulong fenceValueToSignal)
{
return(EnqueueMakeResident(flags, objects?.Length ?? 0, objects, fenceToSignal, fenceValueToSignal));
}
internal bool IsFenceComplete(ID3D12Fence fence, long fenceValue)
{
return(fence.CompletedValue >= fenceValue);
}
protected Application(bool useDirect3D12)
{
_wndProc = ProcessWindowMessage;
var wndClassEx = new WNDCLASSEX
{
Size = Unsafe.SizeOf <WNDCLASSEX>(),
Styles = WindowClassStyles.CS_HREDRAW | WindowClassStyles.CS_VREDRAW | WindowClassStyles.CS_OWNDC,
WindowProc = _wndProc,
InstanceHandle = HInstance,
CursorHandle = LoadCursor(IntPtr.Zero, SystemCursor.IDC_ARROW),
BackgroundBrushHandle = IntPtr.Zero,
IconHandle = IntPtr.Zero,
ClassName = WndClassName,
};
var atom = RegisterClassEx(ref wndClassEx);
if (atom == 0)
{
throw new InvalidOperationException(
$"Failed to register window class. Error: {Marshal.GetLastWin32Error()}"
);
}
Window = new Window("Vortice", 800, 600);
if (useDirect3D12 &&
!ID3D12Device.IsSupported(null, FeatureLevel.Level_11_0))
{
useDirect3D12 = false;
}
var debugFactory = false;
#if DEBUG
if (useDirect3D12)
{
if (D3D12GetDebugInterface <ID3D12Debug>(out var debug).Success)
{
debug.EnableDebugLayer();
debugFactory = true;
}
}
#endif
if (useDirect3D12)
{
if (CreateDXGIFactory2(debugFactory, out IDXGIFactory4 dxgiFactory4).Failure)
{
throw new InvalidOperationException("Cannot create IDXGIFactory4");
}
_dxgiFactory = dxgiFactory4;
}
else
{
if (CreateDXGIFactory2(debugFactory, out _dxgiFactory).Failure)
{
throw new InvalidOperationException("Cannot create IDXGIFactory4");
}
}
if (useDirect3D12)
{
Debug.Assert(D3D12CreateDevice(null, FeatureLevel.Level_11_0, out _d3d12Device).Success);
_d3d12CommandQueue = _d3d12Device.CreateCommandQueue(new CommandQueueDescription(CommandListType.Direct, CommandQueuePriority.Normal));
}
else
{
var featureLevels = new FeatureLevel[]
{
FeatureLevel.Level_11_1,
FeatureLevel.Level_11_0
};
Debug.Assert(ID3D11Device.TryCreate(
null,
DriverType.Hardware,
DeviceCreationFlags.BgraSupport,
featureLevels,
out _d3d11Device,
out _d3d11DeviceContext).Success);
}
var swapChainDesc = new SwapChainDescription1
{
BufferCount = FrameCount,
Width = Window.Width,
Height = Window.Height,
Format = Format.B8G8R8A8_UNorm,
Usage = Vortice.Usage.RenderTargetOutput,
SwapEffect = SwapEffect.FlipDiscard,
SampleDescription = new SampleDescription(1, 0)
};
SwapChain = DXGIFactory.CreateSwapChainForHwnd(_d3d12CommandQueue, Window.Handle, swapChainDesc);
DXGIFactory.MakeWindowAssociation(Window.Handle, WindowAssociationFlags.IgnoreAltEnter);
if (useDirect3D12)
{
SwapChain3 = SwapChain.QueryInterface <IDXGISwapChain3>();
_frameIndex = SwapChain3.GetCurrentBackBufferIndex();
}
_rtvHeap = _d3d12Device.CreateDescriptorHeap(new DescriptorHeapDescription(DescriptorHeapType.RenderTargetView, FrameCount));
_rtvDescriptorSize = _d3d12Device.GetDescriptorHandleIncrementSize(DescriptorHeapType.RenderTargetView);
// Create frame resources.
{
var rtvHandle = _rtvHeap.GetCPUDescriptorHandleForHeapStart();
// Create a RTV for each frame.
_renderTargets = new ID3D12Resource[FrameCount];
for (var i = 0; i < FrameCount; i++)
{
_renderTargets[i] = SwapChain.GetBuffer <ID3D12Resource>(i);
_d3d12Device.CreateRenderTargetView(_renderTargets[i], null, rtvHandle);
rtvHandle += _rtvDescriptorSize;
}
}
_commandAllocator = _d3d12Device.CreateCommandAllocator(CommandListType.Direct);
_commandList = _d3d12Device.CreateCommandList(CommandListType.Direct, _commandAllocator);
_commandList.Close();
// Create synchronization objects.
_d3d12Fence = _d3d12Device.CreateFence(0);
_fenceValue = 1;
_fenceEvent = new AutoResetEvent(false);
}
