ryujinx/Ryujinx.Common/Pools/ThreadStaticArray.cs

using System;

namespace Ryujinx.Common.Pools
{
    public static class ThreadStaticArray<T>
    {
        [ThreadStatic]
        private static T[] _array;

        public static ref T[] Get()
        {
            if (_array == null)
            {
                _array = new T[1];
            }

            return ref _array;
        }
    }
}
-												Add a Multithreading layer for the GAL, multi-thread shader compilation at runtime (#2501)

* Initial Implementation

About as fast as nvidia GL multithreading, can be improved with faster command queuing.

* Struct based command list

Speeds up a bit. Still a lot of time lost to resource copy.

* Do shader init while the render thread is active.

* Introduce circular span pool V1

Ideally should be able to use structs instead of references for storing these spans on commands. Will try that next.

* Refactor SpanRef some more

Use a struct to represent SpanRef, rather than a reference.

* Flush buffers on background thread

* Use a span for UpdateRenderScale.

Much faster than copying the array.

* Calculate command size using reflection

* WIP parallel shaders

* Some minor optimisation

* Only 2 max refs per command now.

The command with 3 refs is gone. :relieved:

* Don't cast on the GPU side

* Remove redundant casts, force sync on window present

* Fix Shader Cache

* Fix host shader save.

* Fixup to work with new renderer stuff

* Make command Run static, use array of delegates as lookup

Profile says this takes less time than the previous way.

* Bring up to date

* Add settings toggle. Fix Muiltithreading Off mode.

* Fix warning.

* Release tracking lock for flushes

* Fix Conditional Render fast path with threaded gal

* Make handle iteration safe when releasing the lock

This is mostly temporary.

* Attempt to set backend threading on driver

Only really works on nvidia before launching a game.

* Fix race condition with BufferModifiedRangeList, exceptions in tracking actions

* Update buffer set commands

* Some cleanup

* Only use stutter workaround when using opengl renderer non-threaded

* Add host-conditional reservation of counter events

There has always been the possibility that conditional rendering could use a query object just as it is disposed by the counter queue. This change makes it so that when the host decides to use host conditional rendering, the query object is reserved so that it cannot be deleted. Counter events can optionally start reserved, as the threaded implementation can reserve them before the backend creates them, and there would otherwise be a short amount of time where the counter queue could dispose the event before a call to reserve it could be made.

* Address Feedback

* Make counter flush tracked again.

Hopefully does not cause any issues this time.

* Wait for FlushTo on the main queue thread.

Currently assumes only one thread will want to FlushTo (in this case, the GPU thread)

* Add SDL2 headless integration

* Add HLE macro commands.

Co-authored-by: Mary <mary@mary.zone>
											
										
										
											2021-08-27 00:31:29 +02:00
+								using System;
 								namespace Ryujinx.Common.Pools
 								{
 								    public static class ThreadStaticArray<T>
 								    {
 								        [ThreadStatic]
 								        private static T[] _array;
 								        public static ref T[] Get()
 								        {
 								            if (_array == null)
 								            {
 								                _array = new T[1];
 								            }
 								            return ref _array;
 								        }
 								    }
 								}