public void Tick()
{
_commandAllocator.Reset();
_commandList.Reset(_commandAllocator, null);
// Indicate that the back buffer will be used as a render target.
_commandList.ResourceBarrierTransition(_renderTargets[_frameIndex], ResourceStates.Present, ResourceStates.RenderTarget);
var rtvHandle = _rtvHeap.GetCPUDescriptorHandleForHeapStart();
rtvHandle += _frameIndex * _rtvDescriptorSize;
// Record commands.
Color4 clearColor = new Color4(0.0f, 0.2f, 0.4f, 1.0f);
_commandList.ClearRenderTargetView(rtvHandle, clearColor);
// Indicate that the back buffer will now be used to present.
_commandList.ResourceBarrierTransition(_renderTargets[_frameIndex], ResourceStates.RenderTarget, ResourceStates.Present);
_commandList.Close();
// Execute the command list.
_d3d12CommandQueue.ExecuteCommandList(_commandList);
var result = SwapChain.Present(1, PresentFlags.None);
if (result.Failure &&
result.Code == Vortice.DXGI.ResultCode.DeviceRemoved.Code)
{
}
WaitForPreviousFrame();
}
private void Initialize()
{
commandAllocator = GraphicsDevice.NativeDevice.CreateCommandAllocator <ID3D12CommandAllocator>(Vortice.Direct3D12.CommandListType.Direct);
fenceValue = 0;
fence = new Fence(GraphicsDevice, fenceValue);
nativeCommandList = GraphicsDevice.NativeDevice.CreateCommandList <ID3D12GraphicsCommandList>(0, Vortice.Direct3D12.CommandListType.Direct, commandAllocator, null);
// We close it as it starts in open state
nativeCommandList.Close();
}
public void ExecuteCommandList()
{
nativeCommandList.Close();
GraphicsDevice.NativeDirectCommandQueue.ExecuteCommandList(this);
fenceValue++;
fence.Signal(GraphicsDevice.NativeDirectCommandQueue, fenceValue);
fence.Wait(fenceValue);
//commandAllocator.Reset();
//nativeCommandList.Reset(commandAllocator, null);
}
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);
}
