SDL: Early out if setting a duplicate window title

SDL Commits
1 
From 1ea99bc9048e6b5e6c4ce1eac516694c3e6db1d8 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 26 Feb 2025 17:10:41 -0800
Subject: [PATCH] Early out if setting a duplicate window title

Setting the window title is an expensive windowing operation, so short circuit it if possible.
---
 src/video/SDL_video.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index e4d642c867258..3a400d8131b20 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -2767,9 +2767,16 @@ bool SDL_SetWindowTitle(SDL_Window *window, const char *title)
     if (title == window->title) {
         return true;
     }
+    if (!title) {
+        title = "";
+    }
+    if (window->title && SDL_strcmp(title, window->title) == 0) {
+        return true;
+    }
+
     SDL_free(window->title);
 
-    window->title = SDL_strdup(title ? title : "");
+    window->title = SDL_strdup(title);
 
     if (_this->SetWindowTitle) {
         _this->SetWindowTitle(_this, window);