Replace SDL2 with SDL3 in comments / string literals

osu.Framework.Tests/Visual/Platform/TestSceneCurrentDisplay.cs

@@ -44,7 +44,7 @@ public void TestChangeCurrentDisplay(WindowState startingState)
 
             WindowMode startingMode = getWindowModeForState(startingState);
 
-            // this shouldn't be necessary, but SDL2DesktopWindow doesn't set the config WindowMode when changing the WindowState only.
+            // this shouldn't be necessary, but SDL3DesktopWindow doesn't set the config WindowMode when changing the WindowState only.
             AddStep($"switch to {startingMode}", () => window.WindowMode.Value = startingMode);
 
             AddStep($"switch to {startingState}", () => window.WindowState = startingState);

osu.Framework/Extensions/BridgingExtensions.cs

@@ -12,7 +12,7 @@ namespace osu.Framework.Extensions
 {
     /// <summary>
     /// Temporary extension functions for bridging between osuTK, System.Drawing, and System.Numerics
-    /// Can be removed when the SDL2 migration is complete.
+    /// Can be removed when the SDL3 migration is complete.
     /// </summary>
     public static class BridgingExtensions
     {

osu.Framework/Platform/GameHost.cs

@@ -732,7 +732,7 @@ public void Run(Game game)
 
                 ChooseAndSetupRenderer();
 
-                // Window creation may fail in the case of a catastrophic failure (ie. graphics driver or SDL2 level).
+                // Window creation may fail in the case of a catastrophic failure (ie. graphics driver or SDL3 level).
                 // In such cases, we want to throw here to immediately mark this renderer setup as failed.
                 if (RequireWindowExists && Window == null)
                 {

osu.Framework/Platform/Linux/LinuxGameHost.cs

@@ -43,7 +43,7 @@ protected override IEnumerable<InputHandler> CreateAvailableInputHandlers()
 
             foreach (var h in handlers.OfType<MouseHandler>())
             {
-                // There are several bugs we need to fix with Linux / SDL2 cursor handling before switching this on.
+                // There are several bugs we need to fix with Linux / SDL3 cursor handling before switching this on.
                 h.UseRelativeMode.Value = false;
                 h.UseRelativeMode.Default = false;
             }

osu.Framework/Platform/MacOS/MacOSGameHost.cs

@@ -54,7 +54,7 @@ protected override IEnumerable<InputHandler> CreateAvailableInputHandlers()
 
             foreach (var h in handlers.OfType<MouseHandler>())
             {
-                // There are several bugs we need to fix with macOS / SDL2 cursor handling before switching this on.
+                // There are several bugs we need to fix with macOS / SDL3 cursor handling before switching this on.
                 h.UseRelativeMode.Value = false;
                 h.UseRelativeMode.Default = false;
             }

osu.Framework/Platform/OsuTKWindow.cs

@@ -130,7 +130,7 @@ public void CancelFlash()
         /// osuTK's reference to the current <see cref="DisplayResolution"/> instance is private.
         /// Instead we construct a <see cref="DisplayMode"/> based on the metrics of <see cref="CurrentDisplayBindable"/>,
         /// as it defers to the current resolution. Note that we round the refresh rate, as osuTK can sometimes
-        /// report refresh rates such as 59.992863 where SDL2 will report 60.
+        /// report refresh rates such as 59.992863 where SDL3 will report 60.
         /// </summary>
         public virtual IBindable<DisplayMode> CurrentDisplayMode
         {

osu.Framework/Platform/SDL/SDL3GraphicsSurface.cs

@@ -88,7 +88,7 @@ private void initialiseOpenGL()
             context = SDL3.SDL_GL_CreateContext(window.SDLWindowHandle);
 
             if (context == IntPtr.Zero)
-                throw new InvalidOperationException($"Failed to create an SDL2 GL context ({SDL3.SDL_GetError()})");
+                throw new InvalidOperationException($"Failed to create an SDL3 GL context ({SDL3.SDL_GetError()})");
 
             SDL3.SDL_GL_MakeCurrent(window.SDLWindowHandle, context);
 

osu.Framework/Platform/SDL3Window.cs

@@ -197,7 +197,7 @@ public virtual void Create()
             SDL3.SDL_SetHint(SDL3.SDL_HINT_TOUCH_MOUSE_EVENTS, "0"u8); // disable touch events generating synthetic mouse events on desktop platforms
             SDL3.SDL_SetHint(SDL3.SDL_HINT_MOUSE_TOUCH_EVENTS, "0"u8); // disable mouse events generating synthetic touch events on mobile platforms
 
-            // we want text input to only be active when SDL2DesktopWindowTextInput is active.
+            // we want text input to only be active when SDL3DesktopWindowTextInput is active.
             // SDL activates it by default on some platforms: https://github.com/libsdl-org/SDL/blob/release-2.0.16/src/video/SDL_video.c#L573-L582
             // so we deactivate it on startup.
             SDL3.SDL_StopTextInput();
@@ -271,7 +271,7 @@ protected void RunFrame()
         /// </summary>
         /// <remarks>
         /// As per SDL's recommendation, application events should always be handled via the event filter.
-        /// See: https://wiki.libsdl.org/SDL2/SDL_EventType#android_ios_and_winrt_events
+        /// See: https://wiki.libsdl.org/SDL3/SDL_EventType#android_ios_and_winrt_events
         /// </remarks>
         protected virtual void HandleEventFromFilter(SDL_Event evt)
         {

osu.Framework/Platform/SDL3Window_Input.cs

@@ -33,7 +33,7 @@ private void setupInput(FrameworkConfigManager config)
         private bool relativeMouseMode;
 
         /// <summary>
-        /// Set the state of SDL2's RelativeMouseMode (https://wiki.libsdl.org/SDL_SetRelativeMouseMode).
+        /// Set the state of SDL3's RelativeMouseMode (https://wiki.libsdl.org/SDL_SetRelativeMouseMode).
         /// On all platforms, this will lock the mouse to the window (although escaping by setting <see cref="ConfineMouseMode"/> is still possible via a local implementation).
         /// On windows, this will use raw input if available.
         /// </summary>

osu.Framework/Platform/Windows/WindowsMouseHandler.cs

@@ -8,7 +8,7 @@
 namespace osu.Framework.Platform.Windows
 {
     /// <summary>
-    /// A windows specific mouse input handler which overrides the SDL2 implementation of raw input.
+    /// A windows specific mouse input handler which overrides the SDL3 implementation of raw input.
     /// This is done to better handle quirks of some devices.
     /// </summary>
     [SupportedOSPlatform("windows")]