sdl2-compat: hints: Implement SDL_RENDER_LOGICAL_SIZE_MODE

SDL Commits
1 
From 8f47f2505f9312225d6a8328b14a1080d3befb66 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <[EMAIL REDACTED]>
Date: Wed, 12 Feb 2025 00:17:38 -0600
Subject: [PATCH] hints: Implement SDL_RENDER_LOGICAL_SIZE_MODE

---
 src/sdl2_compat.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/sdl2_compat.c b/src/sdl2_compat.c
index 188e74f..42566c3 100644
--- a/src/sdl2_compat.c
+++ b/src/sdl2_compat.c
@@ -4923,11 +4923,20 @@ SDL_DECLSPEC int SDLCALL
 SDL_RenderSetLogicalSize(SDL_Renderer *renderer, int w, int h)
 {
     int retval;
+    SDL_RendererLogicalPresentation mode;
+
     if (w == 0 && h == 0) {
-        retval = SDL3_SetRenderLogicalPresentation(renderer, 0, 0, SDL_LOGICAL_PRESENTATION_DISABLED) ? 0 : -1;
+        mode = SDL_LOGICAL_PRESENTATION_DISABLED;
     } else {
-        retval = SDL3_SetRenderLogicalPresentation(renderer, w, h, SDL_LOGICAL_PRESENTATION_LETTERBOX) ? 0 : -1;
+        const char *hint = SDL3_GetHint("SDL_RENDER_LOGICAL_SIZE_MODE");
+        if (hint && (*hint == '1' || SDL3_strcasecmp(hint, "overscan") == 0)) {
+            mode = SDL_LOGICAL_PRESENTATION_OVERSCAN;
+        } else {
+            mode = SDL_LOGICAL_PRESENTATION_LETTERBOX;
+        }
     }
+
+    retval = SDL3_SetRenderLogicalPresentation(renderer, w, h, mode) ? 0 : -1;
     return retval < 0 ? retval : FlushRendererIfNotBatching(renderer);
 }