From 330ea68174affd9cd1001eb7b7498eb52ebff36a Mon Sep 17 00:00:00 2001
From: moonpower <Naalfdl@gmail.com>
Date: Wed, 9 Apr 2025 05:23:46 +0300
Subject: [PATCH] Refactor OpenGL window handling and update project output
 type to Library

---
 distribution/macos/create_app_bundle.sh       |  0
 .../OpenGL/OpenGLWindow.cs                    |  4 ++--
 src/Ryujinx.Headless.SDL2/Program.cs          | 22 ++++++++++++++-----
 .../Ryujinx.Headless.SDL2.csproj              | 14 ++++++------
 src/Ryujinx.Headless.SDL2/WindowBase.cs       |  3 ++-
 5 files changed, 28 insertions(+), 15 deletions(-)
 mode change 100644 => 100755 distribution/macos/create_app_bundle.sh

diff --git a/distribution/macos/create_app_bundle.sh b/distribution/macos/create_app_bundle.sh
old mode 100644
new mode 100755
diff --git a/src/Ryujinx.Headless.SDL2/OpenGL/OpenGLWindow.cs b/src/Ryujinx.Headless.SDL2/OpenGL/OpenGLWindow.cs
index 7ea6e14..c715307 100644
--- a/src/Ryujinx.Headless.SDL2/OpenGL/OpenGLWindow.cs
+++ b/src/Ryujinx.Headless.SDL2/OpenGL/OpenGLWindow.cs
@@ -65,8 +65,8 @@ namespace Ryujinx.Headless.SDL2.OpenGL
 
                 // Ensure we share our contexts.
                 SetupOpenGLAttributes(true, GraphicsDebugLevel.None);
-                IntPtr windowHandle = SDL_CreateWindow("Ryujinx background context window", 0, 0, 1, 1, SDL_WindowFlags.SDL_WINDOW_OPENGL | SDL_WindowFlags.SDL_WINDOW_HIDDEN);
-                IntPtr context = SDL_GL_CreateContext(windowHandle);
+                IntPtr windowHandle = SDL_GL_GetCurrentWindow();
+                IntPtr context = SDL_GL_GetCurrentContext();
 
                 GL.LoadBindings(new OpenToolkitBindingsContext());
 
diff --git a/src/Ryujinx.Headless.SDL2/Program.cs b/src/Ryujinx.Headless.SDL2/Program.cs
index 4ee2712..a30bd62 100644
--- a/src/Ryujinx.Headless.SDL2/Program.cs
+++ b/src/Ryujinx.Headless.SDL2/Program.cs
@@ -34,11 +34,13 @@ using Silk.NET.Vulkan;
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Runtime.InteropServices;
 using System.Text.Json;
 using System.Threading;
 using ConfigGamepadInputId = Ryujinx.Common.Configuration.Hid.Controller.GamepadInputId;
 using ConfigStickInputId = Ryujinx.Common.Configuration.Hid.Controller.StickInputId;
 using Key = Ryujinx.Common.Configuration.Hid.Key;
+using static SDL2.SDL;
 
 namespace Ryujinx.Headless.SDL2
 {
@@ -100,6 +102,18 @@ namespace Ryujinx.Headless.SDL2
             .WithNotParsed(errors => errors.Output());
         }
 
+        [UnmanagedCallersOnly(EntryPoint = "external_main")]
+        public static int ExternalMain(IntPtr rawWindow, IntPtr rawGlContext, int argc, IntPtr argv)
+        {
+            Console.WriteLine("external_main: host provided window: " + rawWindow);
+            Console.WriteLine("external_main: host provided GL context: " + rawGlContext);
+
+            SDL_GL_MakeCurrent(rawWindow, rawGlContext);
+            
+            Main(new string[0]);
+            return 0;
+        }
+
         private static InputConfig HandlePlayerConfiguration(string inputProfileName, string inputId, PlayerIndex index)
         {
             if (inputId == null)
@@ -354,8 +368,8 @@ namespace Ryujinx.Headless.SDL2
             {
                 if (option.GraphicsBackend == GraphicsBackend.OpenGl)
                 {
-                    option.GraphicsBackend = GraphicsBackend.Vulkan;
-                    Logger.Warning?.Print(LogClass.Application, "OpenGL is not supported on macOS, switching to Vulkan!");
+                    //option.GraphicsBackend = GraphicsBackend.Vulkan;
+                    Logger.Warning?.Print(LogClass.Application, "OpenGL is not supported on macOS, switching to Vulkan!"); // fuck you!
                 }
             }
 
@@ -507,9 +521,7 @@ namespace Ryujinx.Headless.SDL2
 
         private static WindowBase CreateWindow(Options options)
         {
-            return options.GraphicsBackend == GraphicsBackend.Vulkan
-                ? new VulkanWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursorMode)
-                : new OpenGLWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursorMode);
+            return new OpenGLWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursorMode);
         }
 
         private static IRenderer CreateRenderer(Options options, WindowBase window)
diff --git a/src/Ryujinx.Headless.SDL2/Ryujinx.Headless.SDL2.csproj b/src/Ryujinx.Headless.SDL2/Ryujinx.Headless.SDL2.csproj
index 6102295..928d4f0 100644
--- a/src/Ryujinx.Headless.SDL2/Ryujinx.Headless.SDL2.csproj
+++ b/src/Ryujinx.Headless.SDL2/Ryujinx.Headless.SDL2.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
     <RuntimeIdentifiers>win-x64;osx-x64;linux-x64</RuntimeIdentifiers>
-    <OutputType>Exe</OutputType>
+    <OutputType>Library</OutputType>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Version>1.0.0-dirty</Version>
     <DefineConstants Condition=" '$(ExtraDefineConstants)' != '' ">$(DefineConstants);$(ExtraDefineConstants)</DefineConstants>
@@ -16,7 +16,7 @@
     <PackageReference Include="Ryujinx.Graphics.Nvdec.Dependencies" />
   </ItemGroup>
 
-  <Target Name="PostBuild" AfterTargets="PostBuildEvent" Condition="$([MSBuild]::IsOSPlatform('OSX'))">
+  <Target Name="PostBuild" AfterTargets="PostBuildEvent" Condition="$([MSBuild]::IsOSPlatform('OSX')) and '$(OutputType)'=='Exe'">
     <Exec Command="codesign --entitlements '$(ProjectDir)..\..\distribution\macos\entitlements.xml' -f --deep -s $(SigningCertificate) '$(TargetDir)$(TargetName)'" />
   </Target>
 
@@ -64,9 +64,9 @@
     <ApplicationIcon>..\Ryujinx\Ryujinx.ico</ApplicationIcon>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(RuntimeIdentifier)' != ''">
-    <PublishSingleFile>true</PublishSingleFile>
-    <PublishTrimmed>true</PublishTrimmed>
-    <TrimMode>partial</TrimMode>
-  </PropertyGroup>
+<PropertyGroup Condition="'$(OutputType)'=='Exe' and '$(RuntimeIdentifier)' != ''">
+  <PublishSingleFile>true</PublishSingleFile>
+  <PublishTrimmed>true</PublishTrimmed>
+  <TrimMode>partial</TrimMode>
+</PropertyGroup>
 </Project>
diff --git a/src/Ryujinx.Headless.SDL2/WindowBase.cs b/src/Ryujinx.Headless.SDL2/WindowBase.cs
index 8768913..8c10faf 100644
--- a/src/Ryujinx.Headless.SDL2/WindowBase.cs
+++ b/src/Ryujinx.Headless.SDL2/WindowBase.cs
@@ -142,6 +142,7 @@ namespace Ryujinx.Headless.SDL2
             }
 
             iconStream.Close();
+            
 
             unsafe
             {
@@ -184,7 +185,7 @@ namespace Ryujinx.Headless.SDL2
                 FullscreenFlag = SDL_WindowFlags.SDL_WINDOW_FULLSCREEN_DESKTOP;
             }
 
-            WindowHandle = SDL_CreateWindow($"Ryujinx {Program.Version}{titleNameSection}{titleVersionSection}{titleIdSection}{titleArchSection}", SDL_WINDOWPOS_CENTERED_DISPLAY(DisplayId), SDL_WINDOWPOS_CENTERED_DISPLAY(DisplayId), Width, Height, DefaultFlags | FullscreenFlag | GetWindowFlags());
+            WindowHandle = SDL_GL_GetCurrentWindow();
 
             if (WindowHandle == IntPtr.Zero)
             {