PersistentFlushBuffer + BackgroundResources

src/Ryujinx.Graphics.Metal/BackgroundResources.cs

@@ -0,0 +1,110 @@
+using SharpMetal.Metal;
+using System;
+using System.Collections.Generic;
+using System.Runtime.Versioning;
+using System.Threading;
+
+namespace Ryujinx.Graphics.Metal
+{
+    [SupportedOSPlatform("macos")]
+    class BackgroundResource : IDisposable
+    {
+        private readonly MetalRenderer _renderer;
+        private readonly Pipeline _pipeline;
+
+        private CommandBufferPool _pool;
+        private PersistentFlushBuffer _flushBuffer;
+
+        public BackgroundResource(MetalRenderer renderer, Pipeline pipeline)
+        {
+            _renderer = renderer;
+            _pipeline = pipeline;
+        }
+
+        public CommandBufferPool GetPool()
+        {
+            if (_pool == null)
+            {
+                MTLCommandQueue queue = _renderer.BackgroundQueue;
+                _pool = new CommandBufferPool(queue.Device, queue);
+            }
+
+            return _pool;
+        }
+
+        public PersistentFlushBuffer GetFlushBuffer()
+        {
+            _flushBuffer ??= new PersistentFlushBuffer(_renderer, _pipeline);
+
+            return _flushBuffer;
+        }
+
+        public void Dispose()
+        {
+            _pool?.Dispose();
+            _flushBuffer?.Dispose();
+        }
+    }
+
+    [SupportedOSPlatform("macos")]
+    class BackgroundResources : IDisposable
+    {
+        private readonly MetalRenderer _renderer;
+        private readonly Pipeline _pipeline;
+
+        private readonly Dictionary<Thread, BackgroundResource> _resources;
+
+        public BackgroundResources(MetalRenderer renderer, Pipeline pipeline)
+        {
+            _renderer = renderer;
+            _pipeline = pipeline;
+
+            _resources = new Dictionary<Thread, BackgroundResource>();
+        }
+
+        private void Cleanup()
+        {
+            lock (_resources)
+            {
+                foreach (KeyValuePair<Thread, BackgroundResource> tuple in _resources)
+                {
+                    if (!tuple.Key.IsAlive)
+                    {
+                        tuple.Value.Dispose();
+                        _resources.Remove(tuple.Key);
+                    }
+                }
+            }
+        }
+
+        public BackgroundResource Get()
+        {
+            Thread thread = Thread.CurrentThread;
+
+            lock (_resources)
+            {
+                if (!_resources.TryGetValue(thread, out BackgroundResource resource))
+                {
+                    Cleanup();
+
+                    resource = new BackgroundResource(_renderer, _pipeline);
+
+                    _resources[thread] = resource;
+                }
+
+                return resource;
+            }
+        }
+
+        public void Dispose()
+        {
+            lock (_resources)
+            {
+                foreach (var resource in _resources.Values)
+                {
+                    resource.Dispose();
+                }
+            }
+        }
+    }
+}