From 4d02a2d2c0451b4de1f6de3bbce54c457cacebe2 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sun, 12 Jul 2020 00:07:01 -0300
Subject: New NVDEC and VIC implementation (#1384)

* Initial NVDEC and VIC implementation

* Update FFmpeg.AutoGen to 4.3.0

* Add nvdec dependencies for Windows

* Unify some VP9 structures

* Rename VP9 structure fields

* Improvements to Video API

* XML docs for Common.Memory

* Remove now unused or redundant overloads from MemoryAccessor

* NVDEC UV surface read/write scalar paths

* Add FIXME comments about hacky things/stuff that will need to be fixed in the future

* Cleaned up VP9 memory allocation

* Remove some debug logs

* Rename some VP9 structs

* Remove unused struct

* No need to compile Ryujinx.Graphics.Host1x with unsafe anymore

* Name AsyncWorkQueue threads to make debugging easier

* Make Vp9PictureInfo a ref struct

* LayoutConverter no longer needs the depth argument (broken by rebase)

* Pooling of VP9 buffers, plus fix a memory leak on VP9

* Really wish VS could rename projects properly...

* Address feedback

* Remove using

* Catch OperationCanceledException

* Add licensing informations

* Add THIRDPARTY.md to release too

Co-authored-by: Thog <me@thog.eu>
---
 Ryujinx.Common/AsyncWorkQueue.cs | 100 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 Ryujinx.Common/AsyncWorkQueue.cs

(limited to 'Ryujinx.Common/AsyncWorkQueue.cs')

diff --git a/Ryujinx.Common/AsyncWorkQueue.cs b/Ryujinx.Common/AsyncWorkQueue.cs
new file mode 100644
index 00000000..80f8dcfe
--- /dev/null
+++ b/Ryujinx.Common/AsyncWorkQueue.cs
@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Concurrent;
+using System.Threading;
+
+namespace Ryujinx.Common
+{
+    public sealed class AsyncWorkQueue<T> : IDisposable
+    {
+        private readonly Thread _workerThread;
+        private readonly CancellationTokenSource _cts;
+        private readonly Action<T> _workerAction;
+        private readonly BlockingCollection<T> _queue;
+
+        public bool IsCancellationRequested => _cts.IsCancellationRequested;
+
+        public AsyncWorkQueue(Action<T> callback, string name = null) : this(callback, name, new BlockingCollection<T>())
+        {
+        }
+
+        public AsyncWorkQueue(Action<T> callback, string name, BlockingCollection<T> collection)
+        {
+            _cts = new CancellationTokenSource();
+            _queue = collection;
+            _workerAction = callback;
+            _workerThread = new Thread(DoWork) { Name = name };
+
+            _workerThread.IsBackground = true;
+            _workerThread.Start();
+        }
+
+        private void DoWork()
+        {
+            try
+            {
+                foreach (var item in _queue.GetConsumingEnumerable(_cts.Token))
+                {
+                    _workerAction(item);
+                }
+            }
+            catch (OperationCanceledException)
+            {
+            }
+        }
+
+        public void Cancel()
+        {
+            _cts.Cancel();
+        }
+
+        public void CancelAfter(int millisecondsDelay)
+        {
+            _cts.CancelAfter(millisecondsDelay);
+        }
+
+        public void CancelAfter(TimeSpan delay)
+        {
+            _cts.CancelAfter(delay);
+        }
+
+        public void Add(T workItem)
+        {
+            _queue.Add(workItem);
+        }
+
+        public void Add(T workItem, CancellationToken cancellationToken)
+        {
+            _queue.Add(workItem, cancellationToken);
+        }
+
+        public bool TryAdd(T workItem)
+        {
+            return _queue.TryAdd(workItem);
+        }
+
+        public bool TryAdd(T workItem, int millisecondsDelay)
+        {
+            return _queue.TryAdd(workItem, millisecondsDelay);
+        }
+
+        public bool TryAdd(T workItem, int millisecondsDelay, CancellationToken cancellationToken)
+        {
+            return _queue.TryAdd(workItem, millisecondsDelay, cancellationToken);
+        }
+
+        public bool TryAdd(T workItem, TimeSpan timeout)
+        {
+            return _queue.TryAdd(workItem, timeout);
+        }
+
+        public void Dispose()
+        {
+            _queue.CompleteAdding();
+            _cts.Cancel();
+            _workerThread.Join();
+
+            _queue.Dispose();
+            _cts.Dispose();
+        }
+    }
+}
-- 
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