Implement Counter Queue and Partial Host Conditional Rendering (#1167)

* Implementation of query queue and host conditional rendering

* Resolve some comments.

* Use overloads instead of passing object.

* Wake the consumer threads when incrementing syncpoints.

Also, do a busy loop when awaiting the counter for a blocking flush, rather than potentially sleeping the thread.

* Ensure there's a command between begin and end query.

Ryujinx.Graphics.OpenGL/Queries/Counters.cs

@@ -0,0 +1,57 @@
+using Ryujinx.Graphics.GAL;
+using System;
+
+namespace Ryujinx.Graphics.OpenGL.Queries
+{
+    class Counters : IDisposable
+    {
+        private CounterQueue[] _counterQueues;
+
+        public Counters()
+        {
+            int count = Enum.GetNames(typeof(CounterType)).Length;
+
+            _counterQueues = new CounterQueue[count];
+        }
+
+        public void Initialize()
+        {
+            for (int index = 0; index < _counterQueues.Length; index++)
+            {
+                CounterType type = (CounterType)index;
+                _counterQueues[index] = new CounterQueue(type);
+            }
+        }
+
+        public CounterQueueEvent QueueReport(CounterType type, EventHandler<ulong> resultHandler)
+        {
+            return _counterQueues[(int)type].QueueReport(resultHandler);
+        }
+
+        public void QueueReset(CounterType type)
+        {
+            _counterQueues[(int)type].QueueReset();
+        }
+
+        public void Update()
+        {
+            foreach (var queue in _counterQueues)
+            {
+                queue.Flush(false);
+            }
+        }
+
+        public void Flush(CounterType type)
+        {
+            _counterQueues[(int)type].Flush(true);
+        }
+
+        public void Dispose()
+        {
+            foreach (var queue in _counterQueues)
+            {
+                queue.Dispose();
+            }
+        }
+    }
+}