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, 20 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Gpu/State/SbDescriptor.cs b/Ryujinx.Graphics.Gpu/State/SbDescriptor.cs
new file mode 100644
index 00000000..9723b719
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/State/SbDescriptor.cs
@@ -0,0 +1,20 @@
+namespace Ryujinx.Graphics.Gpu.State
+{
+    /// <summary>
+    /// Storage buffer address and size information.
+    /// </summary>
+    struct SbDescriptor
+    {
+#pragma warning disable CS0649
+        public uint AddressLow;
+        public uint AddressHigh;
+        public int Size;
+        public int Padding;
+#pragma warning restore CS0649
+
+        public ulong PackAddress()
+        {
+            return AddressLow | ((ulong)AddressHigh << 32);
+        }
+    }
+}