From 1df6c07f78c4c3b8c7fc679d7466f79a10c2d496 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Mon, 4 Dec 2023 16:30:19 -0300
Subject: Implement support for multi-range buffers using Vulkan sparse
mappings (#5427)
* Pass MultiRange to BufferManager
* Implement support for multi-range buffers using Vulkan sparse mappings
* Use multi-range for remaining buffers, delete old methods
* Assume that more buffers are contiguous
* Dispose multi-range buffers after they are removed from the list
* Properly init BufferBounds for constant and storage buffers
* Do not try reading zero bytes data from an unmapped address on the shader cache + PR feedback
* Fix misaligned sparse buffer offsets
* Null check can be simplified
* PR feedback
---
.../Memory/MultiRangeBuffer.cs | 60 ++++++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 src/Ryujinx.Graphics.Gpu/Memory/MultiRangeBuffer.cs
(limited to 'src/Ryujinx.Graphics.Gpu/Memory/MultiRangeBuffer.cs')
diff --git a/src/Ryujinx.Graphics.Gpu/Memory/MultiRangeBuffer.cs b/src/Ryujinx.Graphics.Gpu/Memory/MultiRangeBuffer.cs
new file mode 100644
index 00000000..e039a7a4
--- /dev/null
+++ b/src/Ryujinx.Graphics.Gpu/Memory/MultiRangeBuffer.cs
@@ -0,0 +1,60 @@
+using Ryujinx.Graphics.GAL;
+using Ryujinx.Memory.Range;
+using System;
+
+namespace Ryujinx.Graphics.Gpu.Memory
+{
+ /// <summary>
+ /// Buffer, used to store vertex and index data, uniform and storage buffers, and others.
+ /// </summary>
+ class MultiRangeBuffer : IMultiRangeItem, IDisposable
+ {
+ private readonly GpuContext _context;
+
+ /// <summary>
+ /// Host buffer handle.
+ /// </summary>
+ public BufferHandle Handle { get; }
+
+ /// <summary>
+ /// Range of memory where the data is located.
+ /// </summary>
+ public MultiRange Range { get; }
+
+ /// <summary>
+ /// Creates a new instance of the buffer.
+ /// </summary>
+ /// <param name="context">GPU context that the buffer belongs to</param>
+ /// <param name="range">Range of memory where the data is mapped</param>
+ /// <param name="storages">Backing memory for the buffers</param>
+ public MultiRangeBuffer(GpuContext context, MultiRange range, ReadOnlySpan<BufferRange> storages)
+ {
+ _context = context;
+ Range = range;
+ Handle = context.Renderer.CreateBufferSparse(storages);
+ }
+
+ /// <summary>
+ /// Gets a sub-range from the buffer.
+ /// </summary>
+ /// <remarks>
+ /// This can be used to bind and use sub-ranges of the buffer on the host API.
+ /// </remarks>
+ /// <param name="range">Range of memory where the data is mapped</param>
+ /// <returns>The buffer sub-range</returns>
+ public BufferRange GetRange(MultiRange range)
+ {
+ int offset = Range.FindOffset(range);
+
+ return new BufferRange(Handle, offset, (int)range.GetSize());
+ }
+
+ /// <summary>
+ /// Disposes the host buffer.
+ /// </summary>
+ public void Dispose()
+ {
+ _context.Renderer.DeleteBuffer(Handle);
+ }
+ }
+}
--
cgit v1.2.3-70-g09d2