private protected GraphicsCommandQueue(GraphicsDevice device, GraphicsContextKind kind) : base(device)
{
var d3d12CommandListType = kind.AsD3D12CommandListType();
var d3d12CommandQueue = CreateD3D12CommandQueue(d3d12CommandListType, out _d3d12CommandQueueVersion);
_d3d12CommandQueue.Attach(d3d12CommandQueue);
_kind = kind;
_waitForIdleFence = device.CreateFence(isSignalled: false);
SetNameUnsafe(Name);
ID3D12CommandQueue *CreateD3D12CommandQueue(D3D12_COMMAND_LIST_TYPE d3d12CommandListType, out uint d3d12CommandQueueVersion)
{
ID3D12CommandQueue *d3d12CommandQueue;
var d3d12CommandQueueDesc = new D3D12_COMMAND_QUEUE_DESC {
Type = d3d12CommandListType,
Priority = 0,
Flags = D3D12_COMMAND_QUEUE_FLAG_NONE,
NodeMask = 0,
};
ThrowExternalExceptionIfFailed(Device.D3D12Device->CreateCommandQueue(&d3d12CommandQueueDesc, __uuidof <ID3D12CommandQueue>(), (void **)&d3d12CommandQueue));
return(GetLatestD3D12CommandQueue(d3d12CommandQueue, out d3d12CommandQueueVersion));
}
}
public virtual int CreateCommandQueue(
ref D3D12_COMMAND_QUEUE_DESC pDesc,
ref Guid riid,
out IntPtr ppCommandQueue
)
{
var fp = GetFunctionPointer(8);
if (m_CreateCommandQueueFunc == null)
{
m_CreateCommandQueueFunc = (CreateCommandQueueFunc)Marshal.GetDelegateForFunctionPointer(fp, typeof(CreateCommandQueueFunc));
}
return(m_CreateCommandQueueFunc(m_ptr, ref pDesc, ref riid, out ppCommandQueue));
}
private IntPtr CreateCommandQueue()
{
ID3D12CommandQueue *commandQueue;
var commandQueueDesc = new D3D12_COMMAND_QUEUE_DESC {
Type = D3D12_COMMAND_LIST_TYPE_DIRECT,
Priority = 0,
Flags = D3D12_COMMAND_QUEUE_FLAG_NONE,
NodeMask = 0,
};
var iid = IID_ID3D12CommandQueue;
ThrowExternalExceptionIfFailed(nameof(ID3D12Device.CreateCommandQueue), Device->CreateCommandQueue(&commandQueueDesc, &iid, (void **)&commandQueue));
return((IntPtr)commandQueue);
}
// Load the rendering pipeline dependencies.
private void LoadPipeline()
{
Guid iid;
ID3D12Debug * debugController = null;
IDXGIFactory4 * factory = null;
IDXGIAdapter * adapter = null;
IDXGISwapChain1 *swapChain = null;
try
{
var dxgiFactoryFlags = 0u;
#if DEBUG
// Enable the debug layer (requires the Graphics Tools "optional feature").
// NOTE: Enabling the debug layer after device creation will invalidate the active device.
{
iid = IID_ID3D12Debug;
if (SUCCEEDED(D3D12GetDebugInterface(&iid, (void **)&debugController)))
{
debugController->EnableDebugLayer();
// Enable additional debug layers.
dxgiFactoryFlags |= DXGI_CREATE_FACTORY_DEBUG;
}
}
#endif
iid = IID_IDXGIFactory4;
ThrowIfFailed(nameof(CreateDXGIFactory2), CreateDXGIFactory2(dxgiFactoryFlags, &iid, (void **)&factory));
if (UseWarpDevice)
{
iid = IID_IDXGIAdapter;
ThrowIfFailed(nameof(IDXGIFactory4.EnumWarpAdapter), factory->EnumWarpAdapter(&iid, (void **)&adapter));
}
else
{
adapter = GetHardwareAdapter((IDXGIFactory1 *)factory);
}
fixed(ID3D12Device **device = &_device)
{
iid = IID_ID3D12Device;
ThrowIfFailed(nameof(D3D12CreateDevice), D3D12CreateDevice((IUnknown *)adapter, D3D_FEATURE_LEVEL_11_0, &iid, (void **)device));
}
// Describe and create the command queue.
var queueDesc = new D3D12_COMMAND_QUEUE_DESC();
fixed(ID3D12CommandQueue **commandQueue = &_commandQueue)
{
iid = IID_ID3D12CommandQueue;
ThrowIfFailed(nameof(ID3D12Device.CreateCommandQueue), _device->CreateCommandQueue(&queueDesc, &iid, (void **)commandQueue));
}
// Describe and create the swap chain.
var swapChainDesc = new DXGI_SWAP_CHAIN_DESC1 {
BufferCount = FrameCount,
Width = Width,
Height = Height,
Format = DXGI_FORMAT_R8G8B8A8_UNORM,
BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT,
SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD,
SampleDesc = new DXGI_SAMPLE_DESC(count: 1, quality: 0),
};
ThrowIfFailed(nameof(IDXGIFactory4.CreateSwapChainForHwnd), factory->CreateSwapChainForHwnd(
(IUnknown *)_commandQueue, // Swap chain needs the queue so that it can force a flush on it.
Win32Application.Hwnd,
&swapChainDesc,
pFullscreenDesc: null,
pRestrictToOutput: null,
&swapChain
));
// This sample does not support fullscreen transitions.
ThrowIfFailed(nameof(IDXGIFactory4.MakeWindowAssociation), factory->MakeWindowAssociation(Win32Application.Hwnd, DXGI_MWA_NO_ALT_ENTER));
fixed(IDXGISwapChain3 **swapChain3 = &_swapChain)
{
iid = IID_IDXGISwapChain3;
ThrowIfFailed(nameof(IDXGISwapChain1.QueryInterface), swapChain->QueryInterface(&iid, (void **)swapChain3));
_frameIndex = _swapChain->GetCurrentBackBufferIndex();
}
// Create descriptor heaps.
{
// Describe and create a render target view (RTV) descriptor heap.
var rtvHeapDesc = new D3D12_DESCRIPTOR_HEAP_DESC {
NumDescriptors = FrameCount,
Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV,
};
fixed(ID3D12DescriptorHeap **rtvHeap = &_rtvHeap)
{
iid = IID_ID3D12DescriptorHeap;
ThrowIfFailed(nameof(ID3D12Device.CreateDescriptorHeap), _device->CreateDescriptorHeap(&rtvHeapDesc, &iid, (void **)rtvHeap));
}
_rtvDescriptorSize = _device->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
}
// Create frame resources.
{
var rtvHandle = _rtvHeap->GetCPUDescriptorHandleForHeapStart();
// Create a RTV for each frame.
iid = IID_ID3D12Resource;
for (var n = 0u; n < FrameCount; n++)
{
ID3D12Resource *renderTarget;
{
ThrowIfFailed(nameof(IDXGISwapChain3.GetBuffer), _swapChain->GetBuffer(n, &iid, (void **)&renderTarget));
_device->CreateRenderTargetView(renderTarget, pDesc: null, rtvHandle);
rtvHandle.Offset(1, _rtvDescriptorSize);
}
_renderTargets[unchecked ((int)n)] = renderTarget;
}
}
fixed(ID3D12CommandAllocator **commandAllocator = &_commandAllocator)
{
iid = IID_ID3D12CommandAllocator;
ThrowIfFailed(nameof(ID3D12Device.CreateRenderTargetView), _device->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, &iid, (void **)commandAllocator));
}
fixed(ID3D12CommandAllocator **bundleAllocator = &_bundleAllocator)
{
iid = IID_ID3D12CommandAllocator;
ThrowIfFailed(nameof(ID3D12Device.CreateRenderTargetView), _device->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_BUNDLE, &iid, (void **)bundleAllocator));
}
}
finally
{
if (debugController != null)
{
debugController->Release();
}
if (factory != null)
{
factory->Release();
}
if (adapter != null)
{
adapter->Release();
}
if (swapChain != null)
{
swapChain->Release();
}
}
}
protected override void CreateDeviceDependentResources()
{
_dxgiFactory = CreateDxgiFactory();
_dxgiAdapter = GetDxgiAdapter();
_d3dDevice = CreateD3DDevice();
_commandQueue = CreateCommandQueue();
CreateDescriptorHeaps();
for (int i = 0; i < FrameCount; i++)
{
_commandAllocators[i] = CreateCommandAllocator();
}
_fence = CreateFence();
_fenceValues = CreateFenceValues();
_fenceEvent = CreateFenceEvent();
_rootSignature = CreateRootSignature();
_pipelineState = CreatePipelineState();
_graphicsCommandLists = CreateGraphicsCommandLists();
ThrowIfFailed(nameof(ID3D12CommandAllocator.Reset), CommandAllocator->Reset());
ThrowIfFailed(nameof(ID3D12GraphicsCommandList.Reset), GraphicsCommandList->Reset(CommandAllocator, PipelineState));
CreateAssets();
ID3D12CommandAllocator *CreateCommandAllocator()
{
ID3D12CommandAllocator *commandAllocator;
var iid = IID_ID3D12CommandAllocator;
ThrowIfFailed(nameof(ID3D12Device.CreateCommandAllocator), D3DDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, &iid, (void **)&commandAllocator));
return(commandAllocator);
}
ID3D12CommandQueue *CreateCommandQueue()
{
var queueDesc = new D3D12_COMMAND_QUEUE_DESC();
ID3D12CommandQueue *commandQueue;
var iid = IID_ID3D12CommandQueue;
ThrowIfFailed(nameof(ID3D12Device.CreateCommandQueue), D3DDevice->CreateCommandQueue(&queueDesc, &iid, (void **)&commandQueue));
return(commandQueue);
}
ID3D12Device *CreateD3DDevice()
{
ID3D12Device *d3dDevice;
var iid = IID_ID3D12Device;
ThrowIfFailed(nameof(D3D12CreateDevice), D3D12CreateDevice((IUnknown *)_dxgiAdapter, D3D_FEATURE_LEVEL_11_0, &iid, (void **)&d3dDevice));
return(d3dDevice);
}
IDXGIFactory4 *CreateDxgiFactory()
{
var dxgiFactoryFlags = TryEnableDebugLayer() ? DXGI_CREATE_FACTORY_DEBUG : 0u;
IDXGIFactory4 *dxgiFactory;
var iid = IID_IDXGIFactory4;
ThrowIfFailed(nameof(CreateDXGIFactory2), CreateDXGIFactory2(dxgiFactoryFlags, &iid, (void **)&dxgiFactory));
return(dxgiFactory);
}
ID3D12Fence *CreateFence()
{
ID3D12Fence *fence;
var iid = IID_ID3D12Fence;
ThrowIfFailed(nameof(ID3D12Device.CreateFence), D3DDevice->CreateFence(InitialValue: 0, D3D12_FENCE_FLAG_NONE, &iid, (void **)&fence));
return(fence);
}
IntPtr CreateFenceEvent()
{
var fenceEvent = CreateEventW(lpEventAttributes: null, bManualReset: FALSE, bInitialState: FALSE, lpName: null);
if (fenceEvent == IntPtr.Zero)
{
var hr = Marshal.GetHRForLastWin32Error();
Marshal.ThrowExceptionForHR(hr);
}
return(fenceEvent);
}
ulong[] CreateFenceValues()
{
var fenceValues = new ulong[FrameCount];
fenceValues[0] = 1;
return(fenceValues);
}
ID3D12GraphicsCommandList *[] CreateGraphicsCommandLists()
{
var graphicsCommandLists = new ID3D12GraphicsCommandList *[FrameCount];
for (uint i = 0u; i < FrameCount; i++)
{
ID3D12GraphicsCommandList *graphicsCommandList;
var iid = IID_ID3D12GraphicsCommandList;
ThrowIfFailed(nameof(ID3D12Device.CreateCommandList), D3DDevice->CreateCommandList(nodeMask: 0, D3D12_COMMAND_LIST_TYPE_DIRECT, _commandAllocators[i], PipelineState, &iid, (void **)&graphicsCommandList));
ThrowIfFailed(nameof(ID3D12GraphicsCommandList.Close), graphicsCommandList->Close());
graphicsCommandLists[i] = graphicsCommandList;
}
return(graphicsCommandLists);
}
IDXGIAdapter1 *GetDxgiAdapter()
{
if (UseWarpDevice)
{
IDXGIAdapter1 *adapter;
var iid = IID_IDXGIAdapter;
ThrowIfFailed(nameof(IDXGIFactory4.EnumWarpAdapter), _dxgiFactory->EnumWarpAdapter(&iid, (void **)&adapter));
return(adapter);
}
else
{
return(GetHardwareAdapter((IDXGIFactory1 *)_dxgiFactory));
}
}
bool TryEnableDebugLayer()
{
#if DEBUG
// Enable the debug layer (requires the Graphics Tools "optional feature").
// NOTE: Enabling the debug layer after device creation will invalidate the active device.
using ComPtr <ID3D12Debug> debugController = null;
var iid = IID_ID3D12Debug;
if (SUCCEEDED(D3D12GetDebugInterface(&iid, (void **)&debugController)))
{
debugController.Get()->EnableDebugLayer();
return(true);
}
#endif
return(false);
}
}
// Load the rendering pipeline dependencies.
private void LoadPipeline()
{
Guid iid;
ID3D12Debug * debugController = null;
IDXGIFactory4 * factory = null;
IDXGIAdapter * adapter = null;
IDXGISwapChain1 *swapChain = null;
try
{
var dxgiFactoryFlags = 0u;
#if DEBUG
// Enable the debug layer (requires the Graphics Tools "optional feature").
// NOTE: Enabling the debug layer after device creation will invalidate the active device.
{
iid = IID_ID3D12Debug;
if (SUCCEEDED(D3D12GetDebugInterface(&iid, (void **)&debugController)))
{
debugController->EnableDebugLayer();
// Enable additional debug layers.
dxgiFactoryFlags |= DXGI_CREATE_FACTORY_DEBUG;
}
}
#endif
iid = IID_IDXGIFactory4;
ThrowIfFailed(nameof(CreateDXGIFactory2), CreateDXGIFactory2(dxgiFactoryFlags, &iid, (void **)&factory));
if (UseWarpDevice)
{
iid = IID_IDXGIAdapter;
ThrowIfFailed(nameof(IDXGIFactory4.EnumWarpAdapter), factory->EnumWarpAdapter(&iid, (void **)&adapter));
}
else
{
adapter = GetHardwareAdapter((IDXGIFactory1 *)factory);
}
fixed(ID3D12Device **device = &_device)
{
iid = IID_ID3D12Device;
ThrowIfFailed(nameof(D3D12CreateDevice), D3D12CreateDevice((IUnknown *)adapter, D3D_FEATURE_LEVEL_11_0, &iid, (void **)device));
}
// Describe and create the command queue.
var queueDesc = new D3D12_COMMAND_QUEUE_DESC();
fixed(ID3D12CommandQueue **commandQueue = &_commandQueue)
{
iid = IID_ID3D12CommandQueue;
ThrowIfFailed(nameof(ID3D12Device.CreateCommandQueue), _device->CreateCommandQueue(&queueDesc, &iid, (void **)commandQueue));
}
// Describe and create the swap chain.
var swapChainDesc = new DXGI_SWAP_CHAIN_DESC1 {
BufferCount = FrameCount,
Width = Width,
Height = Height,
Format = DXGI_FORMAT_B8G8R8A8_UNORM,
BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT,
SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD,
// The swap chain could do multisampling for you in older versions of Direct3D
// You might see this in tutorials for D3D11
// This is no longer supported, so the swapchain has no multisampling itself
SampleDesc = new DXGI_SAMPLE_DESC(count: 1, quality: 0),
};
ThrowIfFailed(nameof(IDXGIFactory4.CreateSwapChainForHwnd), factory->CreateSwapChainForHwnd(
(IUnknown *)_commandQueue, // Swap chain needs the queue so that it can force a flush on it.
Win32Application.Hwnd,
&swapChainDesc,
pFullscreenDesc: null,
pRestrictToOutput: null,
&swapChain
));
// This sample does not support fullscreen transitions.
ThrowIfFailed(nameof(IDXGIFactory4.MakeWindowAssociation), factory->MakeWindowAssociation(Win32Application.Hwnd, DXGI_MWA_NO_ALT_ENTER));
fixed(IDXGISwapChain3 **swapChain3 = &_swapChain)
{
iid = IID_IDXGISwapChain3;
ThrowIfFailed(nameof(IDXGISwapChain1.QueryInterface), swapChain->QueryInterface(&iid, (void **)swapChain3));
_frameIndex = _swapChain->GetCurrentBackBufferIndex();
}
// Check MSAA support
CheckMultiSamplingSupport();
// Create descriptor heaps.
{
// Describe and create a render target view (RTV) descriptor heap.
var rtvHeapDesc = new D3D12_DESCRIPTOR_HEAP_DESC {
NumDescriptors = 1, // We only have 1 render target
Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV,
};
fixed(ID3D12DescriptorHeap **rtvHeap = &_rtvHeap)
{
iid = IID_ID3D12DescriptorHeap;
ThrowIfFailed(nameof(ID3D12Device.CreateDescriptorHeap), _device->CreateDescriptorHeap(&rtvHeapDesc, &iid, (void **)rtvHeap));
}
_rtvDescriptorSize = _device->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
}
// Create the render target
// We do not use the back buffer as that cannot be multisampled
{
var desc = new D3D12_RESOURCE_DESC {
Height = Height,
Width = Width,
DepthOrArraySize = 1,
Alignment = 0,
SampleDesc = _msaaDesc,
Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D,
Flags = D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET,
Format = DXGI_FORMAT_B8G8R8A8_UNORM,
Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN,
MipLevels = 1
};
var heapProperties = new D3D12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT);
var clearColor = stackalloc float[4] {
0.0f, 0.2f, 0.4f, 1.0f
};
var clearVal = new D3D12_CLEAR_VALUE(DXGI_FORMAT_B8G8R8A8_UNORM, clearColor);
ID3D12Resource *multisampledRenderTarget;
iid = IID_ID3D12Resource;
ThrowIfFailed(nameof(ID3D12Device.CreateCommittedResource), _device->CreateCommittedResource(&heapProperties, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_RENDER_TARGET, &clearVal, &iid, (void **)&multisampledRenderTarget));
_multiSampledRenderTarget = multisampledRenderTarget;
}
// Create the render target for the multisampled render target
{
var rtvHandle = _rtvHeap->GetCPUDescriptorHandleForHeapStart();
_device->CreateRenderTargetView(_multiSampledRenderTarget, pDesc: null, rtvHandle);
}
// Create frame resources.
{
iid = IID_ID3D12Resource;
for (var n = 0u; n < FrameCount; n++)
{
ID3D12Resource *renderTarget;
{
ThrowIfFailed(nameof(IDXGISwapChain3.GetBuffer), _swapChain->GetBuffer(n, &iid, (void **)&renderTarget));
}
_renderTargets[unchecked ((int)n)] = renderTarget;
}
}
fixed(ID3D12CommandAllocator **commandAllocator = &_commandAllocator)
{
iid = IID_ID3D12CommandAllocator;
ThrowIfFailed(nameof(ID3D12Device.CreateRenderTargetView), _device->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, &iid, (void **)commandAllocator));
}
}
finally
{
if (debugController != null)
{
debugController->Release();
}
if (factory != null)
{
factory->Release();
}
if (adapter != null)
{
adapter->Release();
}
if (swapChain != null)
{
swapChain->Release();
}
}
}
