refactor(srp): move urp final color execution into managed feature

managed/XCEngine.RenderPipelines.Universal/Rendering/Universal/ScriptableRenderPass.cs

@@ -8,6 +8,8 @@ namespace XCEngine.Rendering.Universal
     {
         private const string kColorScaleFullscreenPassName =
             "Universal.ColorScaleFullscreen";
+        private const string kFinalColorFullscreenPassName =
+            "Universal.FinalColorFullscreen";
         private const string kShaderVectorFullscreenPassName =
             "Universal.ShaderVectorFullscreen";
 
@@ -156,6 +158,54 @@ namespace XCEngine.Rendering.Universal
                 .Commit();
         }
 
+        protected bool RecordFinalColorFullscreenPass(
+            ScriptableRenderContext context,
+            FinalColorSettings settings,
+            string passName = null)
+        {
+            RenderGraphTextureHandle sourceColor;
+            RenderGraphTextureHandle outputColor;
+            return TryResolveDefaultFullscreenTargets(
+                       context,
+                       out sourceColor,
+                       out outputColor) &&
+                   RecordFinalColorFullscreenPass(
+                       context,
+                       sourceColor,
+                       outputColor,
+                       settings,
+                       passName);
+        }
+
+        protected bool RecordFinalColorFullscreenPass(
+            ScriptableRenderContext context,
+            RenderGraphTextureHandle sourceColor,
+            RenderGraphTextureHandle outputColor,
+            FinalColorSettings settings,
+            string passName = null)
+        {
+            if (context == null ||
+                !outputColor.isValid)
+            {
+                return false;
+            }
+
+            RenderGraphRasterPassBuilder passBuilder =
+                context.AddRasterPass(
+                    ResolveFullscreenPassName(
+                        passName,
+                        kFinalColorFullscreenPassName));
+            if (sourceColor.isValid)
+            {
+                passBuilder.UseColorSource(sourceColor);
+            }
+
+            return passBuilder
+                .SetColorAttachment(outputColor)
+                .SetFinalColorFullscreenExecution(settings)
+                .Commit();
+        }
+
         internal static bool TryResolveStage(
             RenderPassEvent passEvent,
             out CameraFrameStage stage)