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Move solution and projects to src
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163
src/Ryujinx.Graphics.OpenGL/Queries/CounterQueueEvent.cs
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163
src/Ryujinx.Graphics.OpenGL/Queries/CounterQueueEvent.cs
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using OpenTK.Graphics.OpenGL;
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using Ryujinx.Graphics.GAL;
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using System;
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using System.Threading;
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namespace Ryujinx.Graphics.OpenGL.Queries
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{
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class CounterQueueEvent : ICounterEvent
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{
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public event EventHandler<ulong> OnResult;
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public QueryTarget Type { get; }
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public bool ClearCounter { get; private set; }
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public int Query => _counter.Query;
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public bool Disposed { get; private set; }
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public bool Invalid { get; set; }
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public ulong DrawIndex { get; }
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private CounterQueue _queue;
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private BufferedQuery _counter;
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private bool _hostAccessReserved = false;
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private int _refCount = 1; // Starts with a reference from the counter queue.
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private object _lock = new object();
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private ulong _result = ulong.MaxValue;
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private double _divisor = 1f;
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public CounterQueueEvent(CounterQueue queue, QueryTarget type, ulong drawIndex)
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{
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_queue = queue;
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_counter = queue.GetQueryObject();
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Type = type;
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DrawIndex = drawIndex;
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_counter.Begin();
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}
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internal void Clear()
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{
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_counter.Reset();
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ClearCounter = true;
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}
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internal void Complete(bool withResult, double divisor)
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{
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_counter.End(withResult);
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_divisor = divisor;
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}
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internal bool TryConsume(ref ulong result, bool block, AutoResetEvent wakeSignal = null)
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{
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lock (_lock)
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{
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if (Disposed)
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{
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return true;
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}
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if (ClearCounter || Type == QueryTarget.Timestamp)
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{
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result = 0;
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}
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long queryResult;
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if (block)
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{
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queryResult = _counter.AwaitResult(wakeSignal);
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}
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else
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{
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if (!_counter.TryGetResult(out queryResult))
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{
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return false;
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}
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}
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result += _divisor == 1 ? (ulong)queryResult : (ulong)Math.Ceiling(queryResult / _divisor);
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_result = result;
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OnResult?.Invoke(this, result);
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Dispose(); // Return the our resources to the pool.
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return true;
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}
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}
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public void Flush()
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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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// Tell the queue to process all events up to this one.
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_queue.FlushTo(this);
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}
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public void DecrementRefCount()
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{
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if (Interlocked.Decrement(ref _refCount) == 0)
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{
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DisposeInternal();
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}
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}
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public bool ReserveForHostAccess()
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{
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if (_hostAccessReserved)
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{
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return true;
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}
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if (IsValueAvailable())
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{
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return false;
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}
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if (Interlocked.Increment(ref _refCount) == 1)
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{
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Interlocked.Decrement(ref _refCount);
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return false;
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}
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_hostAccessReserved = true;
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return true;
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}
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public void ReleaseHostAccess()
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{
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_hostAccessReserved = false;
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DecrementRefCount();
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}
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private void DisposeInternal()
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{
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_queue.ReturnQueryObject(_counter);
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}
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private bool IsValueAvailable()
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{
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return _result != ulong.MaxValue || _counter.TryGetResult(out _);
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}
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public void Dispose()
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{
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Disposed = true;
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DecrementRefCount();
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}
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}
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}
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