hack to apply fullscreen + rescaling right away
cleanup fullscreen apply delay workaround

fixed in SDL 2.0.4
https://forums.libsdl.org/viewtopic.php?t=10688
prepare SurfaceTexture. wip
Xcode update
more
more on SurfaceTexture. wip
more on SurfaceTexture. wip
more on SurfaceTexture. wip