From e7dc19b1a10209c64df40254e58063ac0d30511c Mon Sep 17 00:00:00 2001
From: Ari Vuollet <ari.vuollet@kapsi.fi>
Date: Sat, 6 Apr 2024 14:51:53 +0300
Subject: [PATCH] unhardcode FSR1 stuff

---
 Source/Game/Console/EngineSubsystem.cs | 35 ++++++++++++++++++++------
 Source/Game/Game.Build.cs              |  7 +++++-
 2 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/Source/Game/Console/EngineSubsystem.cs b/Source/Game/Console/EngineSubsystem.cs
index 369a006..7daf3f0 100644
--- a/Source/Game/Console/EngineSubsystem.cs
+++ b/Source/Game/Console/EngineSubsystem.cs
@@ -1,7 +1,9 @@
 using System;
 using System.IO;
 using System.Linq;
+#if COMPILE_WITH_FSR1
 using FidelityFX;
+#endif
 #if COMPILE_WITH_DLSS
 using NVIDIA;
 #endif
@@ -22,6 +24,7 @@ public enum UpscalingMode
 // Holds Console variables and commands to control engine behaviour
 public static class EngineSubsystem
 {
+#if COMPILE_WITH_FSR1
     private static FSR _fsrPlugin;
     public static FSR FsrPlugin
     {
@@ -32,6 +35,7 @@ public static class EngineSubsystem
             return _fsrPlugin;
         }
     }
+#endif
 
 #if COMPILE_WITH_DLSS
     private static DLSS _dlssPlugin;
@@ -145,14 +149,12 @@ public static class EngineSubsystem
 #if COMPILE_WITH_DLSS
             if (DlssPlugin.PostFx?.Enabled ?? false)
                 return ((int)UpscalingMode.DLSS).ToString();
-#else
-            if (false) { }
 #endif
-
-            else if (FsrPlugin.PostFx?.Enabled ?? false)
+#if COMPILE_WITH_FSR1
+            if (FsrPlugin.PostFx?.Enabled ?? false)
                 return ((int)UpscalingMode.FSR1).ToString();
-            else
-                return ((int)UpscalingMode.None).ToString();
+#endif
+            return ((int)UpscalingMode.None).ToString();
         }
         set
         {
@@ -183,9 +185,16 @@ public static class EngineSubsystem
                     upscaling = UpscalingMode.None;
                 }
 #endif
-
+#if COMPILE_WITH_FSR1
                 if (FsrPlugin.PostFx != null)
                     FsrPlugin.PostFx.Enabled = upscaling == UpscalingMode.FSR1;
+#else
+                if (upscaling == UpscalingMode.FSR1)
+                {
+                    Console.Print("FSR1 not supported: compiled without COMPILE_WITH_FSR1");
+                    upscaling = UpscalingMode.None;
+                }
+#endif
             }
         }
     }
@@ -251,13 +260,21 @@ public static class EngineSubsystem
         }
     }
 
+#if !COMPILE_WITH_FSR1
+    private static float dummy_Fsr1Sharpness;
+#endif
+
     [ConsoleVariable("r_fsr_sharpness")]
     public static string FsrSharpness
     {
         get
         {
             // In shader, the value of 0 is the max sharpness...
+#if COMPILE_WITH_FSR1
             float sharpness = 2.0f - FsrPlugin.PostFx.Sharpness;
+#else
+            float sharpness = 2.0f - dummy_Fsr1Sharpness;
+#endif
             return sharpness.ToString();
         }
         set
@@ -265,7 +282,11 @@ public static class EngineSubsystem
             if (float.TryParse(value, out float valueFloat))
             {
                 valueFloat = Mathf.Clamp(valueFloat, 0f, 2.0f);
+#if COMPILE_WITH_FSR1
                 FsrPlugin.PostFx.Sharpness = 2.0f - valueFloat;
+#else
+                dummy_Fsr1Sharpness = 2.0f - valueFloat;
+#endif
             }
         }
     }
diff --git a/Source/Game/Game.Build.cs b/Source/Game/Game.Build.cs
index 26e6ac4..d5ff6f9 100644
--- a/Source/Game/Game.Build.cs
+++ b/Source/Game/Game.Build.cs
@@ -1,4 +1,5 @@
 //#define COMPILE_WITH_DLSS
+//#define COMPILE_WITH_FSR1
 
 using Flax.Build;
 using Flax.Build.NativeCpp;
@@ -34,7 +35,7 @@ public class Game : GameModule
         //Tags["Network"] = string.Empty;
         //options.PublicDependencies.Add("Networking");
 
-        options.PrivateDependencies.Add("FidelityFXFSR");
+
 
         //options.ScriptingAPI.FileReferences.Add(Path.Combine(Globals.EngineRoot, "Source", "Platforms", "DotNet", "Newtonsoft.Json.dll"));
 
@@ -43,6 +44,10 @@ public class Game : GameModule
 #if COMPILE_WITH_DLSS
         DLSS.ConditionalImport(options, options.PrivateDependencies);
         options.ScriptingAPI.Defines.Add("COMPILE_WITH_DLSS");
+#endif
+#if COMPILE_WITH_FSR1
+        options.PrivateDependencies.Add("FidelityFXFSR");
+        options.ScriptingAPI.Defines.Add("COMPILE_WITH_FSR1");
 #endif
         // Here you can modify the build options for your game module
         // To reference another module use: options.PublicDependencies.Add("Audio");