GPU: Pre-emptively flush textures that are flushed often (to imported memory when available) (#4711)

* WIP texture pre-flush

Improve performance of TextureView GetData to buffer

Fix copy/sync ordering

Fix minor bug

Make this actually work

WIP host mapping stuff

* Fix usage flags

* message

* Cleanup 1

* Fix rebase

* Fix

* Improve pre-flush rules

* Fix pre-flush

* A lot of cleanup

* Use the host memory bits

* Select the correct memory type

* Cleanup TextureGroupHandle

* Missing comment

* Remove debugging logs

* Revert BufferHandle _value access modifier

* One interrupt action at a time.

* Support D32S8 to D24S8 conversion, safeguards

* Interrupt cannot happen in sync handle's lock

Waitable needs to be checked twice now, but this should stop it from deadlocking.

* Remove unused using

* Address some feedback

* Address feedback

* Address more feedback

* Address more feedback

* Improve sync rules

Should allow for faster sync in some cases.

3 files changed, 73 insertions, 0 deletions

diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferAccessCommand.cs b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferAccessCommand.cs
new file mode 100644
index 00000000..ece98b70
--- /dev/null
+++ b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferAccessCommand.cs
@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Renderer
+{
+    struct CreateBufferAccessCommand : IGALCommand, IGALCommand<CreateBufferAccessCommand>
+    {
+        public CommandType CommandType => CommandType.CreateBufferAccess;
+        private BufferHandle _threadedHandle;
+        private int _size;
+        private BufferAccess _access;
+
+        public void Set(BufferHandle threadedHandle, int size, BufferAccess access)
+        {
+            _threadedHandle = threadedHandle;
+            _size = size;
+            _access = access;
+        }
+
+        public static void Run(ref CreateBufferAccessCommand command, ThreadedRenderer threaded, IRenderer renderer)
+        {
+            threaded.Buffers.AssignBuffer(command._threadedHandle, renderer.CreateBuffer(command._size, command._access));
+        }
+    }
+}
diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateHostBufferCommand.cs b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateHostBufferCommand.cs
new file mode 100644
index 00000000..e25f8468
--- /dev/null
+++ b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateHostBufferCommand.cs
@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Renderer
+{
+    struct CreateHostBufferCommand : IGALCommand, IGALCommand<CreateHostBufferCommand>
+    {
+        public CommandType CommandType => CommandType.CreateHostBuffer;
+        private BufferHandle _threadedHandle;
+        private nint _pointer;
+        private int _size;
+
+        public void Set(BufferHandle threadedHandle, nint pointer, int size)
+        {
+            _threadedHandle = threadedHandle;
+            _pointer = pointer;
+            _size = size;
+        }
+
+        public static void Run(ref CreateHostBufferCommand command, ThreadedRenderer threaded, IRenderer renderer)
+        {
+            threaded.Buffers.AssignBuffer(command._threadedHandle, renderer.CreateBuffer(command._pointer, command._size));
+        }
+    }
+}
diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Texture/TextureCopyToBufferCommand.cs b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Texture/TextureCopyToBufferCommand.cs
new file mode 100644
index 00000000..ac0e07d6
--- /dev/null
+++ b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Texture/TextureCopyToBufferCommand.cs
@@ -0,0 +1,29 @@
+using Ryujinx.Graphics.GAL.Multithreading.Model;
+using Ryujinx.Graphics.GAL.Multithreading.Resources;
+
+namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Texture
+{
+    struct TextureCopyToBufferCommand : IGALCommand, IGALCommand<TextureCopyToBufferCommand>
+    {
+        public CommandType CommandType => CommandType.TextureCopyToBuffer;
+        private TableRef<ThreadedTexture> _texture;
+        private BufferRange _range;
+        private int _layer;
+        private int _level;
+        private int _stride;
+
+        public void Set(TableRef<ThreadedTexture> texture, BufferRange range, int layer, int level, int stride)
+        {
+            _texture = texture;
+            _range = range;
+            _layer = layer;
+            _level = level;
+            _stride = stride;
+        }
+
+        public static void Run(ref TextureCopyToBufferCommand command, ThreadedRenderer threaded, IRenderer renderer)
+        {
+            command._texture.Get(threaded).Base.CopyTo(threaded.Buffers.MapBufferRange(command._range), command._layer, command._level, command._stride);
+        }
+    }
+}