1 files changed, 179 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.GAL/ResourceLayout.cs b/src/Ryujinx.Graphics.GAL/ResourceLayout.cs
new file mode 100644
index 00000000..3cde281f
--- /dev/null
+++ b/src/Ryujinx.Graphics.GAL/ResourceLayout.cs
@@ -0,0 +1,179 @@
+using System;
+using System.Collections.ObjectModel;
+
+namespace Ryujinx.Graphics.GAL
+{
+    public enum ResourceType : byte
+    {
+        UniformBuffer,
+        StorageBuffer,
+        Texture,
+        Sampler,
+        TextureAndSampler,
+        Image,
+        BufferTexture,
+        BufferImage
+    }
+
+    public enum ResourceAccess : byte
+    {
+        None = 0,
+        Read = 1,
+        Write = 2,
+        ReadWrite = Read | Write
+    }
+
+    [Flags]
+    public enum ResourceStages : byte
+    {
+        None = 0,
+        Compute = 1 << 0,
+        Vertex = 1 << 1,
+        TessellationControl = 1 << 2,
+        TessellationEvaluation = 1 << 3,
+        Geometry = 1 << 4,
+        Fragment = 1 << 5
+    }
+
+    public readonly struct ResourceDescriptor : IEquatable<ResourceDescriptor>
+    {
+        public int Binding { get; }
+        public int Count { get; }
+        public ResourceType Type { get; }
+        public ResourceStages Stages { get; }
+
+        public ResourceDescriptor(int binding, int count, ResourceType type, ResourceStages stages)
+        {
+            Binding = binding;
+            Count = count;
+            Type = type;
+            Stages = stages;
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(Binding, Count, Type, Stages);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is ResourceDescriptor other && Equals(other);
+        }
+
+        public bool Equals(ResourceDescriptor other)
+        {
+            return Binding == other.Binding && Count == other.Count && Type == other.Type && Stages == other.Stages;
+        }
+    }
+
+    public readonly struct ResourceUsage : IEquatable<ResourceUsage>
+    {
+        public int Binding { get; }
+        public ResourceType Type { get; }
+        public ResourceStages Stages { get; }
+        public ResourceAccess Access { get; }
+
+        public ResourceUsage(int binding, ResourceType type, ResourceStages stages, ResourceAccess access)
+        {
+            Binding = binding;
+            Type = type;
+            Stages = stages;
+            Access = access;
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(Binding, Type, Stages, Access);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is ResourceUsage other && Equals(other);
+        }
+
+        public bool Equals(ResourceUsage other)
+        {
+            return Binding == other.Binding && Type == other.Type && Stages == other.Stages && Access == other.Access;
+        }
+    }
+
+    public readonly struct ResourceDescriptorCollection
+    {
+        public ReadOnlyCollection<ResourceDescriptor> Descriptors { get; }
+
+        public ResourceDescriptorCollection(ReadOnlyCollection<ResourceDescriptor> descriptors)
+        {
+            Descriptors = descriptors;
+        }
+
+        public override int GetHashCode()
+        {
+            HashCode hasher = new HashCode();
+
+            if (Descriptors != null)
+            {
+                foreach (var descriptor in Descriptors)
+                {
+                    hasher.Add(descriptor);
+                }
+            }
+
+            return hasher.ToHashCode();
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is ResourceDescriptorCollection other && Equals(other);
+        }
+
+        public bool Equals(ResourceDescriptorCollection other)
+        {
+            if ((Descriptors == null) != (other.Descriptors == null))
+            {
+                return false;
+            }
+
+            if (Descriptors != null)
+            {
+                if (Descriptors.Count != other.Descriptors.Count)
+                {
+                    return false;
+                }
+
+                for (int index = 0; index < Descriptors.Count; index++)
+                {
+                    if (!Descriptors[index].Equals(other.Descriptors[index]))
+                    {
+                        return false;
+                    }
+                }
+            }
+
+            return true;
+        }
+    }
+
+    public readonly struct ResourceUsageCollection
+    {
+        public ReadOnlyCollection<ResourceUsage> Usages { get; }
+
+        public ResourceUsageCollection(ReadOnlyCollection<ResourceUsage> usages)
+        {
+            Usages = usages;
+        }
+    }
+
+    public readonly struct ResourceLayout
+    {
+        public ReadOnlyCollection<ResourceDescriptorCollection> Sets { get; }
+        public ReadOnlyCollection<ResourceUsageCollection> SetUsages { get; }
+
+        public ResourceLayout(
+            ReadOnlyCollection<ResourceDescriptorCollection> sets,
+            ReadOnlyCollection<ResourceUsageCollection> setUsages)
+        {
+            Sets = sets;
+            SetUsages = setUsages;
+        }
+    }
+}