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using Ryujinx.Graphics.GAL.Multithreading.Commands.CounterEvent;
using Ryujinx.Graphics.GAL.Multithreading.Model;
using System.Threading;
namespace Ryujinx.Graphics.GAL.Multithreading.Resources
{
class ThreadedCounterEvent : ICounterEvent
{
private readonly ThreadedRenderer _renderer;
public ICounterEvent Base;
public bool Invalid { get; set; }
public CounterType Type { get; }
public bool ClearCounter { get; }
private bool _reserved;
private int _createLock;
public ThreadedCounterEvent(ThreadedRenderer renderer, CounterType type, bool clearCounter)
{
_renderer = renderer;
Type = type;
ClearCounter = clearCounter;
}
private TableRef<T> Ref<T>(T reference)
{
return new TableRef<T>(_renderer, reference);
}
public void Dispose()
{
_renderer.New<CounterEventDisposeCommand>().Set(Ref(this));
_renderer.QueueCommand();
}
public void Flush()
{
ThreadedHelpers.SpinUntilNonNull(ref Base);
Base.Flush();
}
public bool ReserveForHostAccess()
{
if (Base != null)
{
return Base.ReserveForHostAccess();
}
else
{
bool result = true;
// A very light lock, as this case is uncommon.
ThreadedHelpers.SpinUntilExchange(ref _createLock, 1, 0);
if (Base != null)
{
result = Base.ReserveForHostAccess();
}
else
{
_reserved = true;
}
Volatile.Write(ref _createLock, 0);
return result;
}
}
public void Create(IRenderer renderer, CounterType type, System.EventHandler<ulong> eventHandler, bool hostReserved)
{
ThreadedHelpers.SpinUntilExchange(ref _createLock, 1, 0);
Base = renderer.ReportCounter(type, eventHandler, hostReserved || _reserved);
Volatile.Write(ref _createLock, 0);
}
}
}
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