Simplified internal SDL_Surface structure

include/SDL3/SDL_surface.h

@@ -86,9 +86,7 @@ typedef enum SDL_FlipMode
     SDL_FLIP_VERTICAL       /**< flip vertically */
 } SDL_FlipMode;
 
-/* Internal surface data */
-typedef struct SDL_SurfaceData SDL_SurfaceData;
-
+#ifndef SDL_INTERNAL
 /**
  * A collection of pixels used in software blitting.
  *
@@ -105,8 +103,11 @@ typedef struct SDL_SurfaceData SDL_SurfaceData;
  * alignment, and have undefined contents.
  *
  * \since This struct is available since SDL 3.0.0.
+ *
+ * \sa SDL_CreateSurface
+ * \sa SDL_DestroySurface
  */
-typedef struct SDL_Surface
+struct SDL_Surface
 {
     SDL_SurfaceFlags flags;     /**< The flags of the surface, read-only */
     SDL_PixelFormat format;     /**< The format of the surface, read-only */
@@ -117,10 +118,11 @@ typedef struct SDL_Surface
 
     int refcount;               /**< Application reference count, used when freeing surface */
 
-    SDL_SurfaceData *internal;  /**< Private */
-
-} SDL_Surface;
+    void *reserved;             /**< Reserved for internal use */
+};
+#endif /* !SDL_INTERNAL */
 
+typedef struct SDL_Surface SDL_Surface;
 
 /**
  * Allocate a new surface with a specific pixel format.