From 3e6e0e4afaa3c3ffb118cb17b61feb16966a7eeb Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sun, 7 Apr 2024 18:25:55 -0300
Subject: Add support for large sampler arrays on Vulkan (#6489)

* Add support for large sampler arrays on Vulkan

* Shader cache version bump

* Format whitespace

* Move DescriptorSetManager to PipelineLayoutCacheEntry to allow different pool sizes per layout

* Handle array textures with different types on the same buffer

* Somewhat better caching system

* Avoid useless buffer data modification checks

* Move redundant bindings update checking to the backend

* Fix an issue where texture arrays would get the same bindings across stages on Vulkan

* Backport some fixes from part 2

* Fix typo

* PR feedback

* Format whitespace

* Add some missing XML docs
---
 src/Ryujinx.Graphics.OpenGL/Image/ImageArray.cs | 67 +++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 src/Ryujinx.Graphics.OpenGL/Image/ImageArray.cs

(limited to 'src/Ryujinx.Graphics.OpenGL/Image/ImageArray.cs')

diff --git a/src/Ryujinx.Graphics.OpenGL/Image/ImageArray.cs b/src/Ryujinx.Graphics.OpenGL/Image/ImageArray.cs
new file mode 100644
index 00000000..1c5acedf
--- /dev/null
+++ b/src/Ryujinx.Graphics.OpenGL/Image/ImageArray.cs
@@ -0,0 +1,67 @@
+using OpenTK.Graphics.OpenGL;
+using Ryujinx.Graphics.GAL;
+using System;
+
+namespace Ryujinx.Graphics.OpenGL.Image
+{
+    class ImageArray : IImageArray
+    {
+        private record struct TextureRef
+        {
+            public int Handle;
+            public Format Format;
+        }
+
+        private readonly TextureRef[] _images;
+
+        public ImageArray(int size)
+        {
+            _images = new TextureRef[size];
+        }
+
+        public void SetFormats(int index, GAL.Format[] imageFormats)
+        {
+            for (int i = 0; i < imageFormats.Length; i++)
+            {
+                _images[index + i].Format = imageFormats[i];
+            }
+        }
+
+        public void SetImages(int index, ITexture[] images)
+        {
+            for (int i = 0; i < images.Length; i++)
+            {
+                ITexture image = images[i];
+
+                if (image is TextureBase imageBase)
+                {
+                    _images[index + i].Handle = imageBase.Handle;
+                }
+                else
+                {
+                    _images[index + i].Handle = 0;
+                }
+            }
+        }
+
+        public void Bind(int baseBinding)
+        {
+            for (int i = 0; i < _images.Length; i++)
+            {
+                if (_images[i].Handle == 0)
+                {
+                    GL.BindImageTexture(baseBinding + i, 0, 0, true, 0, TextureAccess.ReadWrite, SizedInternalFormat.Rgba8);
+                }
+                else
+                {
+                    SizedInternalFormat format = FormatTable.GetImageFormat(_images[i].Format);
+
+                    if (format != 0)
+                    {
+                        GL.BindImageTexture(baseBinding + i, _images[i].Handle, 0, true, 0, TextureAccess.ReadWrite, format);
+                    }
+                }
+            }
+        }
+    }
+}
-- 
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