565 textures have higher priority than 555 textures

src/render/software/SDL_render_sw.c

@@ -88,8 +88,8 @@ SDL_RenderDriver SW_RenderDriver = {
       SDL_PIXELFORMAT_BGRA8888,
       SDL_PIXELFORMAT_RGB888,
       SDL_PIXELFORMAT_BGR888,
-      SDL_PIXELFORMAT_RGB555,
+      SDL_PIXELFORMAT_RGB565,
-      SDL_PIXELFORMAT_RGB565
+      SDL_PIXELFORMAT_RGB555
      },
      0,
      0}