Implement scaled vertex format emulation (#5564)

* Implement scaled vertex format emulation

* Auto-format (whitespace)

* Delete ToVec4Type

src/Ryujinx.Graphics.Shader/AttributeType.cs

@@ -9,6 +9,8 @@ namespace Ryujinx.Graphics.Shader
         Float,
         Sint,
         Uint,
+        Sscaled,
+        Uscaled,
     }
 
     static class AttributeTypeExtensions
@@ -23,5 +25,18 @@ namespace Ryujinx.Graphics.Shader
                 _ => throw new ArgumentException($"Invalid attribute type \"{type}\"."),
             };
         }
+
+        public static AggregateType ToAggregateType(this AttributeType type, bool supportsScaledFormats)
+        {
+            return type switch
+            {
+                AttributeType.Float => AggregateType.FP32,
+                AttributeType.Sint => AggregateType.S32,
+                AttributeType.Uint => AggregateType.U32,
+                AttributeType.Sscaled => supportsScaledFormats ? AggregateType.FP32 : AggregateType.S32,
+                AttributeType.Uscaled => supportsScaledFormats ? AggregateType.FP32 : AggregateType.U32,
+                _ => throw new ArgumentException($"Invalid attribute type \"{type}\"."),
+            };
+        }
     }
 }