From 18c6dd79a3b25be3fade7e7c8330b699a02d4289 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dino=20Fejzagi=C4=87?= <dino.f@live.de>
Date: Sat, 23 Jan 2021 14:44:56 +0100
Subject: [PATCH] Implement utility to check for used render pipeline (#766)

* Implement utility to check for used render pipeline

* Fix docs
---
 .../Definitions/Utilities/RenderPipeline.cs   | 29 ++++++++++++++
 .../Utilities/RenderPipeline.cs.meta          | 11 ++++++
 Runtime/Utilities/RenderPipelineUtilities.cs  | 38 +++++++++++++++++++
 .../Utilities/RenderPipelineUtilities.cs.meta | 11 ++++++
 4 files changed, 89 insertions(+)
 create mode 100644 Runtime/Definitions/Utilities/RenderPipeline.cs
 create mode 100644 Runtime/Definitions/Utilities/RenderPipeline.cs.meta
 create mode 100644 Runtime/Utilities/RenderPipelineUtilities.cs
 create mode 100644 Runtime/Utilities/RenderPipelineUtilities.cs.meta

diff --git a/Runtime/Definitions/Utilities/RenderPipeline.cs b/Runtime/Definitions/Utilities/RenderPipeline.cs
new file mode 100644
index 000000000..8362ce535
--- /dev/null
+++ b/Runtime/Definitions/Utilities/RenderPipeline.cs
@@ -0,0 +1,29 @@
+// Copyright (c) XRTK. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+
+namespace XRTK.Definitions.Utilities
+{
+    /// <summary>
+    /// Available render pipelines for use in Unity applications.
+    /// </summary>
+    public enum RenderPipeline
+    {
+        /// <summary>
+        /// The legacy "built-in" render pipeline of Unity that was deprecated
+        /// when scriptable render pipelines were introduced.
+        /// </summary>
+        Legacy = 0,
+        /// <summary>
+        /// The universal render pipeline, formerly also known as lightweight render pipeline.
+        /// </summary>
+        UniversalRenderPipeline,
+        /// <summary>
+        /// The high definition pipeline.
+        /// </summary>
+        HighDefinitionRenderPipeline,
+        /// <summary>
+        /// A customized scriptable render pipeline.
+        /// </summary>
+        Custom
+    }
+}
\ No newline at end of file
diff --git a/Runtime/Definitions/Utilities/RenderPipeline.cs.meta b/Runtime/Definitions/Utilities/RenderPipeline.cs.meta
new file mode 100644
index 000000000..27df4ea64
--- /dev/null
+++ b/Runtime/Definitions/Utilities/RenderPipeline.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 42fc4a1663d5ed446a02d84a1684b2d5
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {fileID: 2800000, guid: 8ac5213854cf4dbabd140decf8df1946, type: 3}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Runtime/Utilities/RenderPipelineUtilities.cs b/Runtime/Utilities/RenderPipelineUtilities.cs
new file mode 100644
index 000000000..2750162e0
--- /dev/null
+++ b/Runtime/Utilities/RenderPipelineUtilities.cs
@@ -0,0 +1,38 @@
+// Copyright (c) XRTK. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+
+using UnityEngine.Rendering;
+using XRTK.Extensions;
+using RenderPipeline = XRTK.Definitions.Utilities.RenderPipeline;
+
+namespace XRTK.Utilities
+{
+    public static class RenderPipelineUtilities
+    {
+        private const string urpAssetTypeName = "UniversalRenderPipelineAsset";
+        private const string hdrpAssetTypeName = "HDRenderPipelineAsset";
+
+        /// <summary>
+        /// Gets the <see cref="RenderPipeline"/> used by the project.
+        /// </summary>
+        /// <returns>The <see cref="RenderPipeline"/> used by the project.</returns>
+        public static RenderPipeline GetActiveRenderingPipeline()
+        {
+            var renderPipelineAsset = GraphicsSettings.renderPipelineAsset;
+            if (renderPipelineAsset.IsNull())
+            {
+                return RenderPipeline.Legacy;
+            }
+
+            switch (renderPipelineAsset.GetType().Name)
+            {
+                case urpAssetTypeName:
+                    return RenderPipeline.UniversalRenderPipeline;
+                case hdrpAssetTypeName:
+                    return RenderPipeline.HighDefinitionRenderPipeline;
+            }
+
+            return RenderPipeline.Custom;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Runtime/Utilities/RenderPipelineUtilities.cs.meta b/Runtime/Utilities/RenderPipelineUtilities.cs.meta
new file mode 100644
index 000000000..06a981010
--- /dev/null
+++ b/Runtime/Utilities/RenderPipelineUtilities.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 3a5e3e4cc8e21894aaf436407c14170f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {fileID: 2800000, guid: 8ac5213854cf4dbabd140decf8df1946, type: 3}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: