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98 lines
2.2 KiB
C#
98 lines
2.2 KiB
C#
using Silk.NET.Vulkan;
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using System;
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using System.Threading;
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namespace Ryujinx.Graphics.Vulkan
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{
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class FenceHolder : IDisposable
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{
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private readonly Vk _api;
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private readonly Device _device;
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private Fence _fence;
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private int _referenceCount;
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private bool _disposed;
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public unsafe FenceHolder(Vk api, Device device)
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{
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_api = api;
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_device = device;
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var fenceCreateInfo = new FenceCreateInfo
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{
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SType = StructureType.FenceCreateInfo,
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};
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api.CreateFence(device, in fenceCreateInfo, null, out _fence).ThrowOnError();
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_referenceCount = 1;
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}
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public Fence GetUnsafe()
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{
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return _fence;
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}
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public bool TryGet(out Fence fence)
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{
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int lastValue;
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do
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{
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lastValue = _referenceCount;
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if (lastValue == 0)
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{
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fence = default;
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return false;
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}
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}
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while (Interlocked.CompareExchange(ref _referenceCount, lastValue + 1, lastValue) != lastValue);
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fence = _fence;
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return true;
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}
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public Fence Get()
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{
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Interlocked.Increment(ref _referenceCount);
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return _fence;
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}
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public void Put()
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{
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if (Interlocked.Decrement(ref _referenceCount) == 0)
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{
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_api.DestroyFence(_device, _fence, Span<AllocationCallbacks>.Empty);
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_fence = default;
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}
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}
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public void Wait()
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{
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Span<Fence> fences = stackalloc Fence[]
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{
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_fence,
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};
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FenceHelper.WaitAllIndefinitely(_api, _device, fences);
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}
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public bool IsSignaled()
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{
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Span<Fence> fences = stackalloc Fence[]
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{
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_fence,
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};
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return FenceHelper.AllSignaled(_api, _device, fences);
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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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Put();
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_disposed = true;
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}
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}
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}
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}
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