New GPFifo and fast guest constant buffer updates (#1400)

* Add new structures from official docs, start migrating GPFifo

* Finish migration to new GPFifo processor

* Implement fast constant buffer data upload

* Migrate to new GPFifo class

* XML docs

1 files changed, 18 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Gpu/Engine/MethodUniformBufferUpdate.cs b/Ryujinx.Graphics.Gpu/Engine/MethodUniformBufferUpdate.cs
index 524f5e03..032a5868 100644
--- a/Ryujinx.Graphics.Gpu/Engine/MethodUniformBufferUpdate.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/MethodUniformBufferUpdate.cs
@@ -1,4 +1,6 @@
 using Ryujinx.Graphics.Gpu.State;
+using System;
+using System.Runtime.InteropServices;
 
 namespace Ryujinx.Graphics.Gpu.Engine
 {
@@ -19,5 +21,21 @@ namespace Ryujinx.Graphics.Gpu.Engine
 
             _context.AdvanceSequence();
         }
+
+        /// <summary>
+        /// Updates the uniform buffer data with inline data.
+        /// </summary>
+        /// <param name="state">Current GPU state</param>
+        /// <param name="data">Data to be written to the uniform buffer</param>
+        public void UniformBufferUpdate(GpuState state, ReadOnlySpan<int> data)
+        {
+            var uniformBuffer = state.Get<UniformBufferState>(MethodOffset.UniformBufferState);
+
+            _context.MemoryAccessor.Write(uniformBuffer.Address.Pack() + (uint)uniformBuffer.Offset, MemoryMarshal.Cast<int, byte>(data));
+
+            state.SetUniformBufferOffset(uniformBuffer.Offset + data.Length * 4);
+
+            _context.AdvanceSequence();
+        }
     }
 }
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