114 lines
3.3 KiB
C#
114 lines
3.3 KiB
C#
using Ghost.Core.Utilities;
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using Ghost.Graphics.RHI;
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using System.Runtime.Versioning;
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using TerraFX.Interop.DirectX;
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using TerraFX.Interop.Windows;
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using static TerraFX.Aliases.D3D_Alias;
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using static TerraFX.Aliases.DXGI_Alias;
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namespace Ghost.Graphics.D3D12;
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/// <summary>
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/// D3D12 implementation of the render device interface
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/// </summary>
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internal unsafe class D3D12RenderDevice : IRenderDevice
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{
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private ComPtr<IDXGIFactory7> _dxgiFactory;
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private ComPtr<ID3D12Device14> _device;
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private ComPtr<IDXGIAdapter1> _adapter;
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private readonly D3D12CommandQueue _graphicsQueue;
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private readonly D3D12CommandQueue _computeQueue;
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private readonly D3D12CommandQueue _copyQueue;
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private bool _disposed;
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public ICommandQueue GraphicsQueue => _graphicsQueue;
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public ICommandQueue ComputeQueue => _computeQueue;
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public ICommandQueue CopyQueue => _copyQueue;
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public ID3D12Device14* NativeDevice => _device.Get();
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public IDXGIFactory7* DXGIFactory => _dxgiFactory.Get();
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public IDXGIAdapter1* Adapter => _adapter.Get();
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public D3D12RenderDevice()
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{
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InitializeDevice();
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_graphicsQueue = new D3D12CommandQueue(_device.Get(), CommandQueueType.Graphics);
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_computeQueue = new D3D12CommandQueue(_device.Get(), CommandQueueType.Compute);
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_copyQueue = new D3D12CommandQueue(_device.Get(), CommandQueueType.Copy);
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}
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~D3D12RenderDevice()
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{
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Dispose();
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}
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private void InitializeDevice()
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{
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IDXGIFactory7* pFactory = default;
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#if DEBUG
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CreateDXGIFactory2(TRUE, __uuidof(pFactory), (void**)&pFactory);
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#else
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CreateDXGIFactory2(FALSE, __uuidof(pFactory), (void**)&pFactory);
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#endif
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_dxgiFactory.Attach(pFactory);
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ID3D12Device14* pDevice = default;
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IDXGIAdapter1* pAdapter = default;
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for (uint adapterIndex = 0;
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_dxgiFactory.Get()->EnumAdapterByGpuPreference(adapterIndex, DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE, __uuidof<IDXGIAdapter1>(), (void**)&pAdapter).SUCCEEDED;
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adapterIndex++)
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{
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DXGI_ADAPTER_DESC1 desc = default;
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pAdapter->GetDesc1(&desc);
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// Don't select the Basic Render Driver adapter.
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if (desc.Flags.HasFlag(DXGI_ADAPTER_FLAG_SOFTWARE))
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{
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goto NEXT_ITERATION;
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}
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if (D3D12CreateDevice((IUnknown*)pAdapter, D3D_FEATURE_LEVEL_12_0, __uuidof(pDevice), (void**)&pDevice).SUCCEEDED)
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{
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_adapter.Attach(pAdapter);
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break;
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}
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NEXT_ITERATION:
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pAdapter->Release();
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}
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if (pDevice == null)
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{
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pAdapter->Release(); // Dispose the last adapter we tried. If the operation succeeded, we would have moved it.
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throw new PlatformNotSupportedException("Cannot create ID3D12Device with feature level 12.0");
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}
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_device.Attach(pDevice);
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}
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public void Dispose()
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{
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if (_disposed)
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{
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return;
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}
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_graphicsQueue?.Dispose();
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_computeQueue?.Dispose();
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_copyQueue?.Dispose();
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_device.Reset();
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_dxgiFactory.Dispose();
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_adapter.Dispose();
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_disposed = true;
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GC.SuppressFinalize(this);
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}
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}
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