From 4ddecbb6fe76361cddc3ec859e18bb5aa9897522 Mon Sep 17 00:00:00 2001
From: Isaac Marovitz <isaacryu@icloud.com>
Date: Sun, 28 Jul 2024 18:48:17 +0100
Subject: [PATCH] Remove DummyBufferTextures

Mostly gets VTG on Compute working again
---
 .../Threed/ComputeDraw/VtgAsComputeContext.cs  | 15 ---------------
 .../Threed/ComputeDraw/VtgAsComputeState.cs    | 18 ------------------
 2 files changed, 33 deletions(-)

diff --git a/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeContext.cs b/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeContext.cs
index 6dba27a7d..a7840fb03 100644
--- a/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeContext.cs
+++ b/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeContext.cs
@@ -521,21 +521,6 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed.ComputeDraw
             return new BufferRange(_geometryIndexDataBuffer.Handle, offset, size, write);
         }
 
-        /// <summary>
-        /// Gets the range for a dummy 16 bytes buffer, filled with zeros.
-        /// </summary>
-        /// <returns>Dummy buffer range</returns>
-        public BufferRange GetDummyBufferRange()
-        {
-            if (_dummyBuffer == BufferHandle.Null)
-            {
-                _dummyBuffer = _context.Renderer.CreateBuffer(DummyBufferSize, BufferAccess.DeviceMemory);
-                _context.Renderer.Pipeline.ClearBuffer(_dummyBuffer, 0, DummyBufferSize, 0);
-            }
-
-            return new BufferRange(_dummyBuffer, 0, DummyBufferSize);
-        }
-
         /// <summary>
         /// Gets the range for a sequential index buffer, with ever incrementing index values.
         /// </summary>
diff --git a/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeState.cs b/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeState.cs
index 73682866b..2de324392 100644
--- a/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeState.cs
+++ b/src/Ryujinx.Graphics.Gpu/Engine/Threed/ComputeDraw/VtgAsComputeState.cs
@@ -147,7 +147,6 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed.ComputeDraw
                 {
                     _vacContext.VertexInfoBufferUpdater.SetVertexStride(index, 0, componentsCount);
                     _vacContext.VertexInfoBufferUpdater.SetVertexOffset(index, 0, 0);
-                    SetDummyBufferTexture(_vertexAsCompute.Reservations, index, format);
                     continue;
                 }
 
@@ -163,15 +162,12 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed.ComputeDraw
                 {
                     _vacContext.VertexInfoBufferUpdater.SetVertexStride(index, 0, componentsCount);
                     _vacContext.VertexInfoBufferUpdater.SetVertexOffset(index, 0, 0);
-                    SetDummyBufferTexture(_vertexAsCompute.Reservations, index, format);
                     continue;
                 }
 
                 int vbStride = vertexBuffer.UnpackStride();
                 ulong vbSize = GetVertexBufferSize(address, endAddress.Pack(), vbStride, _indexed, instanced, _firstVertex, _count);
 
-                ulong oldVbSize = vbSize;
-
                 ulong attributeOffset = (ulong)vertexAttrib.UnpackOffset();
                 int componentSize = format.GetScalarSize();
 
@@ -345,20 +341,6 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed.ComputeDraw
             return maxOutputVertices / verticesPerPrimitive;
         }
 
-        /// <summary>
-        /// Binds a dummy buffer as vertex buffer into a buffer texture.
-        /// </summary>
-        /// <param name="reservations">Shader resource binding reservations</param>
-        /// <param name="index">Buffer texture index</param>
-        /// <param name="format">Buffer texture format</param>
-        private readonly void SetDummyBufferTexture(ResourceReservations reservations, int index, Format format)
-        {
-            ITexture bufferTexture = _vacContext.EnsureBufferTexture(index + 2, format);
-            bufferTexture.SetStorage(_vacContext.GetDummyBufferRange());
-
-            _context.Renderer.Pipeline.SetTextureAndSampler(ShaderStage.Compute, reservations.GetVertexBufferTextureBinding(index), bufferTexture, null);
-        }
-
         /// <summary>
         /// Binds a vertex buffer into a buffer texture.
         /// </summary>