sdl2-compat: render: SDL2 enabled batching if no specific renderer was requested.

SDL Commits
1 
From 46b07fa8a86e9e5109a45c72c625739580bd89d2 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Wed, 22 Jan 2025 11:28:17 -0500
Subject: [PATCH] render: SDL2 enabled batching if no specific renderer was
 requested.

---
 src/sdl2_compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sdl2_compat.c b/src/sdl2_compat.c
index 4317de9..0891801 100644
--- a/src/sdl2_compat.c
+++ b/src/sdl2_compat.c
@@ -4444,7 +4444,7 @@ SDL_CreateRenderer(SDL_Window *window, int idx, Uint32 flags)
     renderer = SDL3_CreateRenderer(window, name);
     props = SDL3_GetRendererProperties(renderer);
     if (props) {
-        SDL3_SetBooleanProperty(props, PROP_RENDERER_BATCHING, SDL2Compat_GetHintBoolean("SDL_RENDER_BATCHING", false));
+        SDL3_SetBooleanProperty(props, PROP_RENDERER_BATCHING, SDL2Compat_GetHintBoolean("SDL_RENDER_BATCHING", (name == NULL)));
     }
     if (flags & SDL2_RENDERER_PRESENTVSYNC) {
         SDL3_SetRenderVSync(renderer, 1);