Separate GPU engines and make state follow official docs (part 1/2) (#2422)

* Use DeviceState for compute and i2m

* Migrate 2D class, more comments

* Migrate DMA copy engine

* Remove now unused code

* Replace GpuState by GpuAccessorState on GpuAcessor, since compute no longer has a GpuState

* More comments

* Add logging (disabled)

* Add back i2m on 3D engine

1 files changed, 19 insertions, 2 deletions

diff --git a/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoProcessor.cs b/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoProcessor.cs
index c683d179..d12b6810 100644
--- a/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoProcessor.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoProcessor.cs
@@ -1,4 +1,9 @@
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
+using Ryujinx.Graphics.Gpu.Engine.Compute;
+using Ryujinx.Graphics.Gpu.Engine.Dma;
+using Ryujinx.Graphics.Gpu.Engine.InlineToMemory;
+using Ryujinx.Graphics.Gpu.Engine.Twod;
+using Ryujinx.Graphics.Gpu.Memory;
 using Ryujinx.Graphics.Gpu.State;
 using System;
 using System.Runtime.CompilerServices;
@@ -33,6 +38,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
         private DmaState _state;
 
         private readonly GpuState[] _subChannels;
+        private readonly IDeviceState[] _subChannels2;
         private readonly GPFifoClass _fifoClass;
 
         /// <summary>
@@ -47,10 +53,21 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
 
             _fifoClass = new GPFifoClass(context, this);
             _subChannels = new GpuState[8];
+            _subChannels2 = new IDeviceState[8]
+            {
+                null,
+                new ComputeClass(context, channel),
+                new InlineToMemoryClass(context, channel),
+                new TwodClass(channel),
+                new DmaClass(context, channel),
+                null,
+                null,
+                null
+            };
 
             for (int index = 0; index < _subChannels.Length; index++)
             {
-                _subChannels[index] = new GpuState(channel);
+                _subChannels[index] = new GpuState(channel, _subChannels2[index]);
 
                 _context.Methods.RegisterCallbacks(_subChannels[index]);
             }