Moved SPD setup method into a separate common FfxSpd class

Runtime/Common/FfxSpd.cs

@@ -0,0 +1,25 @@
+using System;
+using UnityEngine;
+
+namespace FidelityFX
+{
+    public static class FfxSpd
+    {
+        public static void SpdSetup(RectInt rectInfo, out Vector2Int dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, int mips = -1)
+        {
+            workGroupOffset = new Vector2Int(rectInfo.x / 64, rectInfo.y / 64);
+
+            int endIndexX = (rectInfo.x + rectInfo.width - 1) / 64;
+            int endIndexY = (rectInfo.y + rectInfo.height - 1) / 64;
+
+            dispatchThreadGroupCount = new Vector2Int(endIndexX + 1 - workGroupOffset.x, endIndexY + 1 - workGroupOffset.y);
+
+            numWorkGroupsAndMips = new Vector2Int(dispatchThreadGroupCount.x * dispatchThreadGroupCount.y, mips);
+            if (mips < 0)
+            {
+                float resolution = Math.Max(rectInfo.width, rectInfo.height);
+                numWorkGroupsAndMips.y = Math.Min(Mathf.FloorToInt(Mathf.Log(resolution, 2.0f)), 12);
+            }
+        }
+    }
+}

Runtime/Common/FfxSpd.cs.meta

@@ -0,0 +1,11 @@
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+guid: aee0f42dc1676ab4db5c01520b0b925a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/FSR2/Fsr2Context.cs

@@ -410,7 +410,7 @@ namespace FidelityFX.FSR2
         private void SetupSpdConstants(Fsr2.DispatchDescription dispatchParams, out Vector2Int dispatchThreadGroupCount)
         {
             RectInt rectInfo = new RectInt(0, 0, dispatchParams.RenderSize.x, dispatchParams.RenderSize.y);
-            SpdSetup(rectInfo, out dispatchThreadGroupCount, out var workGroupOffset, out var numWorkGroupsAndMips);
+            FfxSpd.SpdSetup(rectInfo, out dispatchThreadGroupCount, out var workGroupOffset, out var numWorkGroupsAndMips);
             
             // Downsample
             ref Fsr2.SpdConstants spdConstants = ref _spdConstants.Value;
@@ -422,23 +422,6 @@ namespace FidelityFX.FSR2
             spdConstants.renderSizeY = (uint)dispatchParams.RenderSize.y;
         }
 
-        private static void SpdSetup(RectInt rectInfo, out Vector2Int dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, int mips = -1)
-        {
-            workGroupOffset = new Vector2Int(rectInfo.x / 64, rectInfo.y / 64);
-
-            int endIndexX = (rectInfo.x + rectInfo.width - 1) / 64;
-            int endIndexY = (rectInfo.y + rectInfo.height - 1) / 64;
-
-            dispatchThreadGroupCount = new Vector2Int(endIndexX + 1 - workGroupOffset.x, endIndexY + 1 - workGroupOffset.y);
-
-            numWorkGroupsAndMips = new Vector2Int(dispatchThreadGroupCount.x * dispatchThreadGroupCount.y, mips);
-            if (mips < 0)
-            {
-                float resolution = Math.Max(rectInfo.width, rectInfo.height);
-                numWorkGroupsAndMips.y = Math.Min(Mathf.FloorToInt(Mathf.Log(resolution, 2.0f)), 12);
-            }
-        }
-
         private void DebugCheckDispatch(Fsr2.DispatchDescription dispatchParams)
         {
             if (!dispatchParams.Color.IsValid)

Runtime/FSR3/Fsr3UpscalerContext.cs

@@ -447,7 +447,7 @@ namespace FidelityFX.FSR3
         private void SetupSpdConstants(Fsr3Upscaler.DispatchDescription dispatchParams, out Vector2Int dispatchThreadGroupCount)
         {
             RectInt rectInfo = new RectInt(0, 0, dispatchParams.RenderSize.x, dispatchParams.RenderSize.y);
-            SpdSetup(rectInfo, out dispatchThreadGroupCount, out var workGroupOffset, out var numWorkGroupsAndMips);
+            FfxSpd.SpdSetup(rectInfo, out dispatchThreadGroupCount, out var workGroupOffset, out var numWorkGroupsAndMips);
             
             // Downsample
             ref Fsr3Upscaler.SpdConstants spdConstants = ref _spdConstants.Value;
@@ -459,23 +459,6 @@ namespace FidelityFX.FSR3
             spdConstants.renderSizeY = (uint)dispatchParams.RenderSize.y;
         }
 
-        private static void SpdSetup(RectInt rectInfo, out Vector2Int dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, int mips = -1)
-        {
-            workGroupOffset = new Vector2Int(rectInfo.x / 64, rectInfo.y / 64);
-
-            int endIndexX = (rectInfo.x + rectInfo.width - 1) / 64;
-            int endIndexY = (rectInfo.y + rectInfo.height - 1) / 64;
-
-            dispatchThreadGroupCount = new Vector2Int(endIndexX + 1 - workGroupOffset.x, endIndexY + 1 - workGroupOffset.y);
-
-            numWorkGroupsAndMips = new Vector2Int(dispatchThreadGroupCount.x * dispatchThreadGroupCount.y, mips);
-            if (mips < 0)
-            {
-                float resolution = Math.Max(rectInfo.width, rectInfo.height);
-                numWorkGroupsAndMips.y = Math.Min(Mathf.FloorToInt(Mathf.Log(resolution, 2.0f)), 12);
-            }
-        }
-
         private void DebugCheckDispatch(Fsr3Upscaler.DispatchDescription dispatchParams)
         {
             if (!dispatchParams.Color.IsValid)